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[204.195.123.141]) by smtp.gmail.com with ESMTPSA id 12-20020a17090a198c00b00286d905535bsm16495573pji.0.2023.12.15.08.32.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 Dec 2023 08:32:07 -0800 (PST) From: Stephen Hemminger To: dev@dpdk.org Cc: Stephen Hemminger Subject: [RFC] net/tap: remove kernel side RSS via BPF Date: Fri, 15 Dec 2023 08:31:35 -0800 Message-ID: <20231215163155.181450-1-stephen@networkplumber.org> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org The support of BPF in TAP device was problematic since the API to BPF in kernel is not stable and keeps changing. Since the RTE_FLOW_ACTION_TYPE_RSS is the only part using this remove support for kernel side flow remapping. Signed-off-by: Stephen Hemminger --- doc/guides/nics/tap.rst | 74 -- drivers/net/tap/bpf/Makefile | 19 - drivers/net/tap/bpf/bpf_api.h | 276 ---- drivers/net/tap/bpf/bpf_elf.h | 53 - drivers/net/tap/bpf/bpf_extract.py | 86 -- drivers/net/tap/bpf/tap_bpf_program.c | 255 ---- drivers/net/tap/meson.build | 5 - drivers/net/tap/rte_eth_tap.h | 5 +- drivers/net/tap/tap_bpf.h | 121 -- drivers/net/tap/tap_bpf_api.c | 190 --- drivers/net/tap/tap_bpf_insns.h | 1743 ------------------------- drivers/net/tap/tap_flow.c | 496 +------ drivers/net/tap/tap_flow.h | 12 - drivers/net/tap/tap_tcmsgs.h | 3 - 14 files changed, 4 insertions(+), 3334 deletions(-) delete mode 100644 drivers/net/tap/bpf/Makefile delete mode 100644 drivers/net/tap/bpf/bpf_api.h delete mode 100644 drivers/net/tap/bpf/bpf_elf.h delete mode 100644 drivers/net/tap/bpf/bpf_extract.py delete mode 100644 drivers/net/tap/bpf/tap_bpf_program.c delete mode 100644 drivers/net/tap/tap_bpf.h delete mode 100644 drivers/net/tap/tap_bpf_api.c delete mode 100644 drivers/net/tap/tap_bpf_insns.h diff --git a/doc/guides/nics/tap.rst b/doc/guides/nics/tap.rst index d4f45c02a1e5..5779f5d08e31 100644 --- a/doc/guides/nics/tap.rst +++ b/doc/guides/nics/tap.rst @@ -123,7 +123,6 @@ Supported actions: - DROP - QUEUE - PASSTHRU -- RSS (requires kernel 4.9) It is generally not possible to provide a "last" item. However, if the "last" item, once masked, is identical to the masked spec, then it is supported. @@ -153,10 +152,6 @@ Drop UDP packets in vlan 3:: testpmd> flow create 0 priority 3 ingress pattern eth / vlan vid is 3 / \ ipv4 proto is 17 / end actions drop / end -Distribute IPv4 TCP packets using RSS to a given MAC address over queues 0-3:: - - testpmd> flow create 0 priority 4 ingress pattern eth dst is 0a:0b:0c:0d:0e:0f \ - / ipv4 / tcp / end actions rss queues 0 1 2 3 end / end Multi-process sharing --------------------- @@ -227,80 +222,11 @@ size of the packets after you stop the traffic. Use pktgen ``help`` command to see a list of all commands. You can also use the ``-f`` option to load commands at startup in command line or Lua script in pktgen. -RSS specifics -------------- -Packet distribution in TAP is done by the kernel which has a default -distribution. This feature is adding RSS distribution based on eBPF code. -The default eBPF code calculates RSS hash based on Toeplitz algorithm for -a fixed RSS key. It is calculated on fixed packet offsets. For IPv4 and IPv6 it -is calculated over src/dst addresses (8 or 32 bytes for IPv4 or IPv6 -respectively) and src/dst TCP/UDP ports (4 bytes). - -The RSS algorithm is written in file ``tap_bpf_program.c`` which -does not take part in TAP PMD compilation. Instead this file is compiled -in advance to eBPF object file. The eBPF object file is then parsed and -translated into eBPF byte code in the format of C arrays of eBPF -instructions. The C array of eBPF instructions is part of TAP PMD tree and -is taking part in TAP PMD compilation. At run time the C arrays are uploaded to -the kernel via BPF system calls and the RSS hash is calculated by the -kernel. - -It is possible to support different RSS hash algorithms by updating file -``tap_bpf_program.c`` In order to add a new RSS hash algorithm follow these -steps: - -#. Write the new RSS implementation in file ``tap_bpf_program.c`` - - BPF programs which are uploaded to the kernel correspond to - C functions under different ELF sections. - -#. Install ``LLVM`` library and ``clang`` compiler versions 3.7 and above - -#. Use make to compile `tap_bpf_program.c`` via ``LLVM`` into an object file - and extract the resulting instructions into ``tap_bpf_insn.h``:: - - cd bpf; make - -#. Recompile the TAP PMD. - -The C arrays are uploaded to the kernel using BPF system calls. - -``tc`` (traffic control) is a well known user space utility program used to -configure the Linux kernel packet scheduler. It is usually packaged as -part of the ``iproute2`` package. -Since commit 11c39b5e9 ("tc: add eBPF support to f_bpf") ``tc`` can be used -to uploads eBPF code to the kernel and can be patched in order to print the -C arrays of eBPF instructions just before calling the BPF system call. -Please refer to ``iproute2`` package file ``lib/bpf.c`` function -``bpf_prog_load()``. - -An example utility for eBPF instruction generation in the format of C arrays will -be added in next releases - -TAP reports on supported RSS functions as part of dev_infos_get callback: -``RTE_ETH_RSS_IP``, ``RTE_ETH_RSS_UDP`` and ``RTE_ETH_RSS_TCP``. -**Known limitation:** TAP supports all of the above hash functions together -and not in partial combinations. Systems supporting flow API --------------------------- - "tc flower" classifier requires linux kernel above 4.2 -- eBPF/RSS requires linux kernel above 4.9 - -+--------------------+-----------------------+ -| RH7.3 | No flow rule support | -+--------------------+-----------------------+ -| RH7.4 | No RSS action support | -+--------------------+-----------------------+ -| RH7.5 | No RSS action support | -+--------------------+-----------------------+ -| SLES 15, | No limitation | -| kernel 4.12 | | -+--------------------+-----------------------+ -| Azure Ubuntu 16.04,| No limitation | -| kernel 4.13 | | -+--------------------+-----------------------+ Limitations ----------- diff --git a/drivers/net/tap/bpf/Makefile b/drivers/net/tap/bpf/Makefile deleted file mode 100644 index 9efeeb1bc704..000000000000 --- a/drivers/net/tap/bpf/Makefile +++ /dev/null @@ -1,19 +0,0 @@ -# SPDX-License-Identifier: BSD-3-Clause -# This file is not built as part of normal DPDK build. -# It is used to generate the eBPF code for TAP RSS. - -CLANG=clang -CLANG_OPTS=-O2 -TARGET=../tap_bpf_insns.h - -all: $(TARGET) - -clean: - rm tap_bpf_program.o $(TARGET) - -tap_bpf_program.o: tap_bpf_program.c - $(CLANG) $(CLANG_OPTS) -emit-llvm -c $< -o - | \ - llc -march=bpf -filetype=obj -o $@ - -$(TARGET): tap_bpf_program.o - python3 bpf_extract.py -stap_bpf_program.c -o $@ $< diff --git a/drivers/net/tap/bpf/bpf_api.h b/drivers/net/tap/bpf/bpf_api.h deleted file mode 100644 index 2638a8a4ac9a..000000000000 --- a/drivers/net/tap/bpf/bpf_api.h +++ /dev/null @@ -1,276 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause */ - -#ifndef __BPF_API__ -#define __BPF_API__ - -/* Note: - * - * This file can be included into eBPF kernel programs. It contains - * a couple of useful helper functions, map/section ABI (bpf_elf.h), - * misc macros and some eBPF specific LLVM built-ins. - */ - -#include - -#include -#include -#include - -#include - -#include "bpf_elf.h" - -/** libbpf pin type. */ -enum libbpf_pin_type { - LIBBPF_PIN_NONE, - /* PIN_BY_NAME: pin maps by name (in /sys/fs/bpf by default) */ - LIBBPF_PIN_BY_NAME, -}; - -/** Type helper macros. */ - -#define __uint(name, val) int (*name)[val] -#define __type(name, val) typeof(val) *name -#define __array(name, val) typeof(val) *name[] - -/** Misc macros. */ - -#ifndef __stringify -# define __stringify(X) #X -#endif - -#ifndef __maybe_unused -# define __maybe_unused __attribute__((__unused__)) -#endif - -#ifndef offsetof -# define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) -#endif - -#ifndef likely -# define likely(X) __builtin_expect(!!(X), 1) -#endif - -#ifndef unlikely -# define unlikely(X) __builtin_expect(!!(X), 0) -#endif - -#ifndef htons -# define htons(X) __constant_htons((X)) -#endif - -#ifndef ntohs -# define ntohs(X) __constant_ntohs((X)) -#endif - -#ifndef htonl -# define htonl(X) __constant_htonl((X)) -#endif - -#ifndef ntohl -# define ntohl(X) __constant_ntohl((X)) -#endif - -#ifndef __inline__ -# define __inline__ __attribute__((always_inline)) -#endif - -/** Section helper macros. */ - -#ifndef __section -# define __section(NAME) \ - __attribute__((section(NAME), used)) -#endif - -#ifndef __section_tail -# define __section_tail(ID, KEY) \ - __section(__stringify(ID) "/" __stringify(KEY)) -#endif - -#ifndef __section_xdp_entry -# define __section_xdp_entry \ - __section(ELF_SECTION_PROG) -#endif - -#ifndef __section_cls_entry -# define __section_cls_entry \ - __section(ELF_SECTION_CLASSIFIER) -#endif - -#ifndef __section_act_entry -# define __section_act_entry \ - __section(ELF_SECTION_ACTION) -#endif - -#ifndef __section_lwt_entry -# define __section_lwt_entry \ - __section(ELF_SECTION_PROG) -#endif - -#ifndef __section_license -# define __section_license \ - __section(ELF_SECTION_LICENSE) -#endif - -#ifndef __section_maps -# define __section_maps \ - __section(ELF_SECTION_MAPS) -#endif - -/** Declaration helper macros. */ - -#ifndef BPF_LICENSE -# define BPF_LICENSE(NAME) \ - char ____license[] __section_license = NAME -#endif - -/** Classifier helper */ - -#ifndef BPF_H_DEFAULT -# define BPF_H_DEFAULT -1 -#endif - -/** BPF helper functions for tc. Individual flags are in linux/bpf.h */ - -#ifndef __BPF_FUNC -# define __BPF_FUNC(NAME, ...) \ - (* NAME)(__VA_ARGS__) __maybe_unused -#endif - -#ifndef BPF_FUNC -# define BPF_FUNC(NAME, ...) \ - __BPF_FUNC(NAME, __VA_ARGS__) = (void *) BPF_FUNC_##NAME -#endif - -/* Map access/manipulation */ -static void *BPF_FUNC(map_lookup_elem, void *map, const void *key); -static int BPF_FUNC(map_update_elem, void *map, const void *key, - const void *value, uint32_t flags); -static int BPF_FUNC(map_delete_elem, void *map, const void *key); - -/* Time access */ -static uint64_t BPF_FUNC(ktime_get_ns); - -/* Debugging */ - -/* FIXME: __attribute__ ((format(printf, 1, 3))) not possible unless - * llvm bug https://llvm.org/bugs/show_bug.cgi?id=26243 gets resolved. - * It would require ____fmt to be made const, which generates a reloc - * entry (non-map). - */ -static void BPF_FUNC(trace_printk, const char *fmt, int fmt_size, ...); - -#ifndef printt -# define printt(fmt, ...) \ - ({ \ - char ____fmt[] = fmt; \ - trace_printk(____fmt, sizeof(____fmt), ##__VA_ARGS__); \ - }) -#endif - -/* Random numbers */ -static uint32_t BPF_FUNC(get_prandom_u32); - -/* Tail calls */ -static void BPF_FUNC(tail_call, struct __sk_buff *skb, void *map, - uint32_t index); - -/* System helpers */ -static uint32_t BPF_FUNC(get_smp_processor_id); -static uint32_t BPF_FUNC(get_numa_node_id); - -/* Packet misc meta data */ -static uint32_t BPF_FUNC(get_cgroup_classid, struct __sk_buff *skb); -static int BPF_FUNC(skb_under_cgroup, void *map, uint32_t index); - -static uint32_t BPF_FUNC(get_route_realm, struct __sk_buff *skb); -static uint32_t BPF_FUNC(get_hash_recalc, struct __sk_buff *skb); -static uint32_t BPF_FUNC(set_hash_invalid, struct __sk_buff *skb); - -/* Packet redirection */ -static int BPF_FUNC(redirect, int ifindex, uint32_t flags); -static int BPF_FUNC(clone_redirect, struct __sk_buff *skb, int ifindex, - uint32_t flags); - -/* Packet manipulation */ -static int BPF_FUNC(skb_load_bytes, struct __sk_buff *skb, uint32_t off, - void *to, uint32_t len); -static int BPF_FUNC(skb_store_bytes, struct __sk_buff *skb, uint32_t off, - const void *from, uint32_t len, uint32_t flags); - -static int BPF_FUNC(l3_csum_replace, struct __sk_buff *skb, uint32_t off, - uint32_t from, uint32_t to, uint32_t flags); -static int BPF_FUNC(l4_csum_replace, struct __sk_buff *skb, uint32_t off, - uint32_t from, uint32_t to, uint32_t flags); -static int BPF_FUNC(csum_diff, const void *from, uint32_t from_size, - const void *to, uint32_t to_size, uint32_t seed); -static int BPF_FUNC(csum_update, struct __sk_buff *skb, uint32_t wsum); - -static int BPF_FUNC(skb_change_type, struct __sk_buff *skb, uint32_t type); -static int BPF_FUNC(skb_change_proto, struct __sk_buff *skb, uint32_t proto, - uint32_t flags); -static int BPF_FUNC(skb_change_tail, struct __sk_buff *skb, uint32_t nlen, - uint32_t flags); - -static int BPF_FUNC(skb_pull_data, struct __sk_buff *skb, uint32_t len); - -/* Event notification */ -static int __BPF_FUNC(skb_event_output, struct __sk_buff *skb, void *map, - uint64_t index, const void *data, uint32_t size) = - (void *) BPF_FUNC_perf_event_output; - -/* Packet vlan encap/decap */ -static int BPF_FUNC(skb_vlan_push, struct __sk_buff *skb, uint16_t proto, - uint16_t vlan_tci); -static int BPF_FUNC(skb_vlan_pop, struct __sk_buff *skb); - -/* Packet tunnel encap/decap */ -static int BPF_FUNC(skb_get_tunnel_key, struct __sk_buff *skb, - struct bpf_tunnel_key *to, uint32_t size, uint32_t flags); -static int BPF_FUNC(skb_set_tunnel_key, struct __sk_buff *skb, - const struct bpf_tunnel_key *from, uint32_t size, - uint32_t flags); - -static int BPF_FUNC(skb_get_tunnel_opt, struct __sk_buff *skb, - void *to, uint32_t size); -static int BPF_FUNC(skb_set_tunnel_opt, struct __sk_buff *skb, - const void *from, uint32_t size); - -/** LLVM built-ins, mem*() routines work for constant size */ - -#ifndef lock_xadd -# define lock_xadd(ptr, val) ((void) __sync_fetch_and_add(ptr, val)) -#endif - -#ifndef memset -# define memset(s, c, n) __builtin_memset((s), (c), (n)) -#endif - -#ifndef memcpy -# define memcpy(d, s, n) __builtin_memcpy((d), (s), (n)) -#endif - -#ifndef memmove -# define memmove(d, s, n) __builtin_memmove((d), (s), (n)) -#endif - -/* FIXME: __builtin_memcmp() is not yet fully usable unless llvm bug - * https://llvm.org/bugs/show_bug.cgi?id=26218 gets resolved. Also - * this one would generate a reloc entry (non-map), otherwise. - */ -#if 0 -#ifndef memcmp -# define memcmp(a, b, n) __builtin_memcmp((a), (b), (n)) -#endif -#endif - -unsigned long long load_byte(void *skb, unsigned long long off) - asm ("llvm.bpf.load.byte"); - -unsigned long long load_half(void *skb, unsigned long long off) - asm ("llvm.bpf.load.half"); - -unsigned long long load_word(void *skb, unsigned long long off) - asm ("llvm.bpf.load.word"); - -#endif /* __BPF_API__ */ diff --git a/drivers/net/tap/bpf/bpf_elf.h b/drivers/net/tap/bpf/bpf_elf.h deleted file mode 100644 index ea8a11c95c0f..000000000000 --- a/drivers/net/tap/bpf/bpf_elf.h +++ /dev/null @@ -1,53 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause */ -#ifndef __BPF_ELF__ -#define __BPF_ELF__ - -#include - -/* Note: - * - * Below ELF section names and bpf_elf_map structure definition - * are not (!) kernel ABI. It's rather a "contract" between the - * application and the BPF loader in tc. For compatibility, the - * section names should stay as-is. Introduction of aliases, if - * needed, are a possibility, though. - */ - -/* ELF section names, etc */ -#define ELF_SECTION_LICENSE "license" -#define ELF_SECTION_MAPS "maps" -#define ELF_SECTION_PROG "prog" -#define ELF_SECTION_CLASSIFIER "classifier" -#define ELF_SECTION_ACTION "action" - -#define ELF_MAX_MAPS 64 -#define ELF_MAX_LICENSE_LEN 128 - -/* Object pinning settings */ -#define PIN_NONE 0 -#define PIN_OBJECT_NS 1 -#define PIN_GLOBAL_NS 2 - -/* ELF map definition */ -struct bpf_elf_map { - __u32 type; - __u32 size_key; - __u32 size_value; - __u32 max_elem; - __u32 flags; - __u32 id; - __u32 pinning; - __u32 inner_id; - __u32 inner_idx; -}; - -#define BPF_ANNOTATE_KV_PAIR(name, type_key, type_val) \ - struct ____btf_map_##name { \ - type_key key; \ - type_val value; \ - }; \ - struct ____btf_map_##name \ - __attribute__ ((section(".maps." #name), used)) \ - ____btf_map_##name = { } - -#endif /* __BPF_ELF__ */ diff --git a/drivers/net/tap/bpf/bpf_extract.py b/drivers/net/tap/bpf/bpf_extract.py deleted file mode 100644 index b630c42b809f..000000000000 --- a/drivers/net/tap/bpf/bpf_extract.py +++ /dev/null @@ -1,86 +0,0 @@ -#!/usr/bin/env python3 -# SPDX-License-Identifier: BSD-3-Clause -# Copyright (c) 2023 Stephen Hemminger - -import argparse -import sys -import struct -from tempfile import TemporaryFile -from elftools.elf.elffile import ELFFile - - -def load_sections(elffile): - """Get sections of interest from ELF""" - result = [] - parts = [("cls_q", "cls_q_insns"), ("l3_l4", "l3_l4_hash_insns")] - for name, tag in parts: - section = elffile.get_section_by_name(name) - if section: - insns = struct.iter_unpack('> 4 - dst = bpf[1] & 0xf - off = bpf[2] - imm = bpf[3] - print(f'\t{{{code:#04x}, {dst:4d}, {src:4d}, {off:8d}, {imm:#010x}}},', - file=out) - print('};', file=out) - - -def parse_args(): - """Parse command line arguments""" - parser = argparse.ArgumentParser() - parser.add_argument('-s', - '--source', - type=str, - help="original source file") - parser.add_argument('-o', '--out', type=str, help="output C file path") - parser.add_argument("file", - nargs='+', - help="object file path or '-' for stdin") - return parser.parse_args() - - -def open_input(path): - """Open the file or stdin""" - if path == "-": - temp = TemporaryFile() - temp.write(sys.stdin.buffer.read()) - return temp - return open(path, 'rb') - - -def write_header(out, source): - """Write file intro header""" - print("/* SPDX-License-Identifier: BSD-3-Clause", file=out) - if source: - print(f' * Auto-generated from {source}', file=out) - print(" * This not the original source file. Do NOT edit it.", file=out) - print(" */\n", file=out) - print("#include ", file=out) - - -def main(): - '''program main function''' - args = parse_args() - - with open(args.out, 'w', - encoding="utf-8") if args.out else sys.stdout as out: - write_header(out, args.source) - for path in args.file: - elffile = ELFFile(open_input(path)) - sections = load_sections(elffile) - for name, insns in sections: - dump_section(name, insns, out) - - -if __name__ == "__main__": - main() diff --git a/drivers/net/tap/bpf/tap_bpf_program.c b/drivers/net/tap/bpf/tap_bpf_program.c deleted file mode 100644 index f05aed021c30..000000000000 --- a/drivers/net/tap/bpf/tap_bpf_program.c +++ /dev/null @@ -1,255 +0,0 @@ -/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 - * Copyright 2017 Mellanox Technologies, Ltd - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "bpf_api.h" -#include "bpf_elf.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 a unique QUEUE_OFFSET, to distinguish - * packets that have gone through this rule (skb->cb[1] != 0) from others. - */ -#define QUEUE_OFFSET 0x7cafe800 -#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]; - /* queue is set by tap_flow_bpf_cls_q() before load */ - 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; - - /* queue match */ - skb->cb[1] = 0; - 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[TAP_RSS_HASH_KEY_SIZE] = { - 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] & (1U << (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; - bool mf = 0; - __u16 frag_off = 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 *frag_off_addr = data + off + offsetof(struct iphdr, frag_off); - __u8 *prot_addr = data + off + offsetof(struct iphdr, protocol); - __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 = 0, - .dport = 0, - }; - /** Fetch the L4-payer port numbers only in-case of TCP/UDP - ** and also if the packet is not fragmented. Since fragmented - ** chunks do not have L4 TCP/UDP header. - **/ - if (*prot_addr == IPPROTO_UDP || *prot_addr == IPPROTO_TCP) { - frag_off = PORT(*(frag_off_addr + 0), - *(frag_off_addr + 1)); - mf = frag_off & 0x2000; - frag_off = frag_off & 0x1fff; - if (mf == 0 && frag_off == 0) { - v4_tuple.sport = PORT(*(src_dst_port + 0), - *(src_dst_port + 1)); - v4_tuple.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); - __u8 *next_hdr = data + off + - offsetof(struct ipv6hdr, nexthdr); - - 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)); - - /** Fetch the L4 header port-numbers only if next-header - * is TCP/UDP **/ - if (*next_hdr == IPPROTO_UDP || *next_hdr == IPPROTO_TCP) { - v6_tuple.sport = PORT(*(src_dst_port + 0), - *(src_dst_port + 1)); - v6_tuple.dport = PORT(*(src_dst_port + 2), - *(src_dst_port + 3)); - } else { - v6_tuple.sport = 0; - v6_tuple.dport = 0; - } - - __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/meson.build b/drivers/net/tap/meson.build index 5099ccdff11b..f83f460a7808 100644 --- a/drivers/net/tap/meson.build +++ b/drivers/net/tap/meson.build @@ -7,7 +7,6 @@ if not is_linux endif sources = files( 'rte_eth_tap.c', - 'tap_bpf_api.c', 'tap_flow.c', 'tap_intr.c', 'tap_netlink.c', @@ -25,10 +24,6 @@ cflags += '-DTAP_MAX_QUEUES=16' args = [ [ 'HAVE_TC_FLOWER', 'linux/pkt_cls.h', 'TCA_FLOWER_UNSPEC' ], [ 'HAVE_TC_VLAN_ID', 'linux/pkt_cls.h', 'TCA_FLOWER_KEY_VLAN_PRIO' ], - [ 'HAVE_TC_BPF', 'linux/pkt_cls.h', 'TCA_BPF_UNSPEC' ], - [ 'HAVE_TC_BPF_FD', 'linux/pkt_cls.h', 'TCA_BPF_FD' ], - [ 'HAVE_TC_ACT_BPF', 'linux/tc_act/tc_bpf.h', 'TCA_ACT_BPF_UNSPEC' ], - [ 'HAVE_TC_ACT_BPF_FD', 'linux/tc_act/tc_bpf.h', 'TCA_ACT_BPF_FD' ], ] config = configuration_data() foreach arg:args diff --git a/drivers/net/tap/rte_eth_tap.h b/drivers/net/tap/rte_eth_tap.h index 5ac93f93e961..e19824583651 100644 --- a/drivers/net/tap/rte_eth_tap.h +++ b/drivers/net/tap/rte_eth_tap.h @@ -79,11 +79,8 @@ struct pmd_internals { int flow_isolate; /* 1 if flow isolation is enabled */ int flower_support; /* 1 if kernel supports, else 0 */ int flower_vlan_support; /* 1 if kernel supports, else 0 */ - int rss_enabled; /* 1 if RSS is enabled, else 0 */ int persist; /* 1 if keep link up, else 0 */ - /* implicit rules set when RSS is enabled */ - int map_fd; /* BPF RSS map fd */ - int bpf_fd[RTE_PMD_TAP_MAX_QUEUES];/* List of bpf fds per queue */ + LIST_HEAD(tap_rss_flows, rte_flow) rss_flows; LIST_HEAD(tap_flows, rte_flow) flows; /* rte_flow rules */ /* implicit rte_flow rules set when a remote device is active */ diff --git a/drivers/net/tap/tap_bpf.h b/drivers/net/tap/tap_bpf.h deleted file mode 100644 index 0d38bc111fe0..000000000000 --- a/drivers/net/tap/tap_bpf.h +++ /dev/null @@ -1,121 +0,0 @@ -/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 - * Copyright 2017 Mellanox Technologies, Ltd - */ - -#ifndef __TAP_BPF_H__ -#define __TAP_BPF_H__ - -#include - -/* Do not #include since eBPF must compile on different - * distros which may include partial definitions for eBPF (while the - * kernel itself may support eBPF). Instead define here all that is needed - */ - -/* 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; - }; -} __rte_aligned(8); - -#ifndef __NR_bpf -# if defined(__i386__) -# define __NR_bpf 357 -# elif defined(__x86_64__) -# define __NR_bpf 321 -# elif defined(__arm__) -# define __NR_bpf 386 -# elif defined(__aarch64__) -# define __NR_bpf 280 -# elif defined(__sparc__) -# define __NR_bpf 349 -# elif defined(__s390__) -# define __NR_bpf 351 -# elif defined(__powerpc__) -# define __NR_bpf 361 -# elif defined(__riscv) -# define __NR_bpf 280 -# elif defined(__loongarch__) -# define __NR_bpf 280 -# else -# error __NR_bpf not defined -# endif -#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_api.c b/drivers/net/tap/tap_bpf_api.c deleted file mode 100644 index 15283f8917ed..000000000000 --- a/drivers/net/tap/tap_bpf_api.c +++ /dev/null @@ -1,190 +0,0 @@ -/* SPDX-License-Identifier: BSD-3-Clause - * Copyright 2017 Mellanox Technologies, Ltd - */ - -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include - -/** - * 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, - RTE_DIM(cls_q_insns), - "Dual BSD/GPL"); -} - -/** - * 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, - RTE_DIM(l3_l4_hash_insns), - "Dual BSD/GPL"); -} - -/** - * 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: classifier 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] license - * 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)); -} - -/** - * Create BPF map for RSS rules - * - * @param[in] key_size - * map RSS key size - * - * @param[in] value_size - * Map RSS value size - * - * @param[in] max_entries - * Map max number of RSS entries (limit on max RSS rules) - * - * @return - * -1 if BPF map couldn't be created, map fd otherwise - */ -int tap_flow_bpf_rss_map_create(unsigned int key_size, - unsigned int value_size, - unsigned int max_entries) -{ - union bpf_attr attr = {}; - - bzero(&attr, sizeof(attr)); - attr.map_type = BPF_MAP_TYPE_HASH; - attr.key_size = key_size; - attr.value_size = value_size; - attr.max_entries = max_entries; - - return sys_bpf(BPF_MAP_CREATE, &attr, sizeof(attr)); -} - -/** - * Update RSS entry in BPF map - * - * @param[in] fd - * RSS map fd - * - * @param[in] key - * Pointer to RSS key whose entry is updated - * - * @param[in] value - * Pointer to RSS new updated value - * - * @return - * -1 if RSS entry failed to be updated, 0 otherwise - */ -int tap_flow_bpf_update_rss_elem(int fd, void *key, void *value) -{ - union bpf_attr attr = {}; - - bzero(&attr, sizeof(attr)); - - attr.map_type = BPF_MAP_TYPE_HASH; - attr.map_fd = fd; - attr.key = ptr_to_u64(key); - attr.value = ptr_to_u64(value); - attr.flags = BPF_ANY; - - return sys_bpf(BPF_MAP_UPDATE_ELEM, &attr, sizeof(attr)); -} diff --git a/drivers/net/tap/tap_bpf_insns.h b/drivers/net/tap/tap_bpf_insns.h deleted file mode 100644 index 53fa76c4e6b0..000000000000 --- a/drivers/net/tap/tap_bpf_insns.h +++ /dev/null @@ -1,1743 +0,0 @@ -/* SPDX-License-Identifier: BSD-3-Clause - * Auto-generated from tap_bpf_program.c - * This not the original source file. Do NOT edit it. - */ - -#include - -static struct bpf_insn cls_q_insns[] = { - {0x61, 2, 1, 52, 0x00000000}, - {0x18, 3, 0, 0, 0xdeadbeef}, - {0x00, 0, 0, 0, 0x00000000}, - {0x63, 10, 3, -4, 0x00000000}, - {0xb7, 0, 0, 0, 0x00000000}, - {0x61, 3, 10, -4, 0x00000000}, - {0x07, 3, 0, 0, 0x7cafe800}, - {0x67, 3, 0, 0, 0x00000020}, - {0x77, 3, 0, 0, 0x00000020}, - {0x5d, 2, 3, 4, 0x00000000}, - {0xb7, 2, 0, 0, 0x00000000}, - {0x63, 1, 2, 52, 0x00000000}, - {0x18, 0, 0, 0, 0xffffffff}, - {0x00, 0, 0, 0, 0x00000000}, - {0x95, 0, 0, 0, 0x00000000}, -}; - -static struct bpf_insn l3_l4_hash_insns[] = { - {0xbf, 7, 1, 0, 0x00000000}, - {0x61, 6, 7, 16, 0x00000000}, - {0x61, 8, 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, 0, 0, 0x00000000}, - {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, 1680, 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, 8, 0, 0x00000000}, - {0x07, 1, 0, 0, 0x00000012}, - {0x2d, 1, 9, 1670, 0x00000000}, - {0xb7, 1, 0, 0, 0x00000012}, - {0x69, 6, 8, 16, 0x00000000}, - {0xbf, 7, 2, 0, 0x00000000}, - {0x57, 6, 0, 0, 0x0000ffff}, - {0x7b, 10, 7, -56, 0x00000000}, - {0x15, 6, 0, 443, 0x0000dd86}, - {0xb7, 7, 0, 0, 0x00000003}, - {0x55, 6, 0, 1662, 0x00000008}, - {0x0f, 8, 1, 0, 0x00000000}, - {0xb7, 7, 0, 0, 0x00000000}, - {0xbf, 1, 8, 0, 0x00000000}, - {0x07, 1, 0, 0, 0x00000018}, - {0x2d, 1, 9, 1657, 0x00000000}, - {0xb7, 1, 0, 0, 0x00000000}, - {0x71, 3, 8, 12, 0x00000000}, - {0x71, 2, 8, 9, 0x00000000}, - {0x15, 2, 0, 1, 0x00000011}, - {0x55, 2, 0, 21, 0x00000006}, - {0x71, 2, 8, 7, 0x00000000}, - {0x71, 4, 8, 6, 0x00000000}, - {0xbf, 5, 4, 0, 0x00000000}, - {0x67, 5, 0, 0, 0x00000008}, - {0x57, 5, 0, 0, 0x00001f00}, - {0x4f, 5, 2, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x00000020}, - {0x4f, 4, 5, 0, 0x00000000}, - {0x55, 4, 0, 12, 0x00000000}, - {0xbf, 2, 8, 0, 0x00000000}, - {0x07, 2, 0, 0, 0x00000014}, - {0x71, 4, 2, 0, 0x00000000}, - {0x67, 4, 0, 0, 0x00000018}, - {0x71, 1, 2, 1, 0x00000000}, - {0x67, 1, 0, 0, 0x00000010}, - {0x4f, 1, 4, 0, 0x00000000}, - {0x71, 4, 2, 3, 0x00000000}, - {0x4f, 1, 4, 0, 0x00000000}, - {0x71, 2, 2, 2, 0x00000000}, - {0x67, 2, 0, 0, 0x00000008}, - {0x4f, 1, 2, 0, 0x00000000}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x67, 4, 0, 0, 0x00000038}, - {0xc7, 4, 0, 0, 0x00000038}, - {0xb7, 2, 0, 0, 0x00000000}, - {0x65, 4, 0, 1, 0xffffffff}, - {0xb7, 7, 0, 0, 0x2cc681d1}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x00000040}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0x598d03a2}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x00000020}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0xb31a0745}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x00000010}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0x66340e8a}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x00000008}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0xcc681d15}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x00000004}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0x98d03a2b}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x00000002}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0x31a07456}, - {0x71, 4, 8, 13, 0x00000000}, - {0x57, 3, 0, 0, 0x00000001}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0x6340e8ad}, - {0xbf, 3, 4, 0, 0x00000000}, - {0x67, 3, 0, 0, 0x00000038}, - {0xc7, 3, 0, 0, 0x00000038}, - {0xbf, 5, 7, 0, 0x00000000}, - {0xa7, 5, 0, 0, 0xc681d15b}, - {0x6d, 2, 3, 1, 0x00000000}, - {0xbf, 5, 7, 0, 0x00000000}, - {0xbf, 3, 4, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000040}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0x8d03a2b7}, - {0xbf, 3, 4, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000020}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0x1a07456f}, - {0xbf, 3, 4, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000010}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0x340e8ade}, - {0xbf, 3, 4, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000008}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0x681d15bd}, - {0xbf, 3, 4, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000004}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0xd03a2b7b}, - {0xbf, 3, 4, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000002}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0xa07456f6}, - {0x71, 3, 8, 14, 0x00000000}, - {0x57, 4, 0, 0, 0x00000001}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0x40e8aded}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x67, 4, 0, 0, 0x00000038}, - {0xc7, 4, 0, 0, 0x00000038}, - {0xbf, 7, 5, 0, 0x00000000}, - {0xa7, 7, 0, 0, 0x81d15bdb}, - {0x6d, 2, 4, 1, 0x00000000}, - {0xbf, 7, 5, 0, 0x00000000}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x00000040}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0x03a2b7b7}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x00000020}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0x07456f6f}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x00000010}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0x0e8adedf}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x00000008}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0x1d15bdbf}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x00000004}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0x3a2b7b7e}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x00000002}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0x7456f6fd}, - {0x71, 4, 8, 15, 0x00000000}, - {0x57, 3, 0, 0, 0x00000001}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0xe8adedfa}, - {0xbf, 3, 4, 0, 0x00000000}, - {0x67, 3, 0, 0, 0x00000038}, - {0xc7, 3, 0, 0, 0x00000038}, - {0xbf, 5, 7, 0, 0x00000000}, - {0xa7, 5, 0, 0, 0xd15bdbf4}, - {0x6d, 2, 3, 1, 0x00000000}, - {0xbf, 5, 7, 0, 0x00000000}, - {0xbf, 3, 4, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000040}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0xa2b7b7e9}, - {0xbf, 3, 4, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000020}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0x456f6fd3}, - {0xbf, 3, 4, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000010}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0x8adedfa7}, - {0xbf, 3, 4, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000008}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0x15bdbf4f}, - {0xbf, 3, 4, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000004}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0x2b7b7e9e}, - {0xbf, 3, 4, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000002}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0x56f6fd3d}, - {0x71, 3, 8, 16, 0x00000000}, - {0x57, 4, 0, 0, 0x00000001}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0xadedfa7b}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x67, 4, 0, 0, 0x00000038}, - {0xc7, 4, 0, 0, 0x00000038}, - {0xbf, 7, 5, 0, 0x00000000}, - {0xa7, 7, 0, 0, 0x5bdbf4f7}, - {0x6d, 2, 4, 1, 0x00000000}, - {0xbf, 7, 5, 0, 0x00000000}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x00000040}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0xb7b7e9ef}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x00000020}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0x6f6fd3df}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x00000010}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0xdedfa7bf}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x00000008}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0xbdbf4f7f}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x00000004}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0x7b7e9eff}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x00000002}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0xf6fd3dff}, - {0x71, 4, 8, 17, 0x00000000}, - {0x57, 3, 0, 0, 0x00000001}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0xedfa7bfe}, - {0xbf, 3, 4, 0, 0x00000000}, - {0x67, 3, 0, 0, 0x00000038}, - {0xc7, 3, 0, 0, 0x00000038}, - {0xbf, 5, 7, 0, 0x00000000}, - {0xa7, 5, 0, 0, 0xdbf4f7fc}, - {0x6d, 2, 3, 1, 0x00000000}, - {0xbf, 5, 7, 0, 0x00000000}, - {0xbf, 3, 4, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000040}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0xb7e9eff9}, - {0xbf, 3, 4, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000020}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0x6fd3dff2}, - {0xbf, 3, 4, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000010}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0xdfa7bfe5}, - {0xbf, 3, 4, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000008}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0xbf4f7fca}, - {0xbf, 3, 4, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000004}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0x7e9eff94}, - {0xbf, 3, 4, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000002}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0xfd3dff28}, - {0x71, 3, 8, 18, 0x00000000}, - {0x57, 4, 0, 0, 0x00000001}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0xfa7bfe51}, - {0xbf, 6, 3, 0, 0x00000000}, - {0x67, 6, 0, 0, 0x00000038}, - {0xc7, 6, 0, 0, 0x00000038}, - {0xbf, 4, 5, 0, 0x00000000}, - {0xa7, 4, 0, 0, 0xf4f7fca2}, - {0x6d, 2, 6, 1, 0x00000000}, - {0xbf, 4, 5, 0, 0x00000000}, - {0xbf, 5, 3, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00000040}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0xe9eff945}, - {0xbf, 5, 3, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00000020}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0xd3dff28a}, - {0xbf, 5, 3, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00000010}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0xa7bfe514}, - {0xbf, 5, 3, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00000008}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0x4f7fca28}, - {0xbf, 5, 3, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00000004}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0x9eff9450}, - {0xbf, 5, 3, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00000002}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0x3dff28a0}, - {0x71, 5, 8, 19, 0x00000000}, - {0x57, 3, 0, 0, 0x00000001}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0x7bfe5141}, - {0xbf, 3, 5, 0, 0x00000000}, - {0x67, 3, 0, 0, 0x00000038}, - {0xc7, 3, 0, 0, 0x00000038}, - {0xbf, 7, 4, 0, 0x00000000}, - {0xa7, 7, 0, 0, 0xf7fca283}, - {0x6d, 2, 3, 1, 0x00000000}, - {0xbf, 7, 4, 0, 0x00000000}, - {0xbf, 3, 5, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000040}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0xeff94506}, - {0xbf, 3, 5, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000020}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0xdff28a0c}, - {0xbf, 3, 5, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000010}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0xbfe51418}, - {0xbf, 3, 5, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000008}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0x7fca2831}, - {0xbf, 3, 5, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000004}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0xff945063}, - {0xbf, 3, 5, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000002}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0xff28a0c6}, - {0x57, 5, 0, 0, 0x00000001}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 7, 0, 0, 0xfe51418c}, - {0xbf, 4, 1, 0, 0x00000000}, - {0x67, 4, 0, 0, 0x00000020}, - {0xc7, 4, 0, 0, 0x00000020}, - {0xbf, 3, 7, 0, 0x00000000}, - {0xa7, 3, 0, 0, 0xfca28319}, - {0x6d, 2, 4, 1, 0x00000000}, - {0xbf, 3, 7, 0, 0x00000000}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x40000000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0xf9450633}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x20000000}, - {0x79, 6, 10, -56, 0x00000000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0xf28a0c67}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x10000000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0xe51418ce}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x08000000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0xca28319d}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x04000000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x9450633b}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x02000000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x28a0c676}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x01000000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x51418ced}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00800000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0xa28319db}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00400000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x450633b6}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00200000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x8a0c676c}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00100000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x1418ced8}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00080000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x28319db1}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00040000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x50633b63}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00020000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0xa0c676c6}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00010000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x418ced8d}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00008000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x8319db1a}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00004000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x0633b634}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00002000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x0c676c68}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00001000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x18ced8d1}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000800}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x319db1a3}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000400}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x633b6347}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000200}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0xc676c68f}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000100}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x8ced8d1f}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000080}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x19db1a3e}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000040}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x33b6347d}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000020}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x676c68fa}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000010}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0xced8d1f4}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000008}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x9db1a3e9}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000004}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x3b6347d2}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000002}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x76c68fa5}, - {0x57, 1, 0, 0, 0x00000001}, - {0x15, 1, 0, 1194, 0x00000000}, - {0xa7, 3, 0, 0, 0xed8d1f4a}, - {0x05, 0, 0, 1192, 0x00000000}, - {0x0f, 8, 1, 0, 0x00000000}, - {0xb7, 7, 0, 0, 0x00000000}, - {0xbf, 1, 8, 0, 0x00000000}, - {0x07, 1, 0, 0, 0x0000002c}, - {0x2d, 1, 9, 1216, 0x00000000}, - {0x61, 2, 8, 8, 0x00000000}, - {0xdc, 2, 0, 0, 0x00000040}, - {0xc7, 2, 0, 0, 0x00000020}, - {0x71, 3, 8, 6, 0x00000000}, - {0x15, 3, 0, 2, 0x00000011}, - {0xb7, 1, 0, 0, 0x00000000}, - {0x55, 3, 0, 12, 0x00000006}, - {0xbf, 3, 8, 0, 0x00000000}, - {0x07, 3, 0, 0, 0x00000028}, - {0x71, 4, 3, 0, 0x00000000}, - {0x67, 4, 0, 0, 0x00000018}, - {0x71, 1, 3, 1, 0x00000000}, - {0x67, 1, 0, 0, 0x00000010}, - {0x4f, 1, 4, 0, 0x00000000}, - {0x71, 4, 3, 3, 0x00000000}, - {0x4f, 1, 4, 0, 0x00000000}, - {0x71, 3, 3, 2, 0x00000000}, - {0x67, 3, 0, 0, 0x00000008}, - {0x4f, 1, 3, 0, 0x00000000}, - {0xbf, 4, 2, 0, 0x00000000}, - {0x77, 4, 0, 0, 0x0000001f}, - {0x57, 4, 0, 0, 0x2cc681d1}, - {0xbf, 3, 2, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x40000000}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0x598d03a2}, - {0xbf, 3, 2, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x20000000}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0xb31a0745}, - {0xbf, 3, 2, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x10000000}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0x66340e8a}, - {0xbf, 3, 2, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x08000000}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0xcc681d15}, - {0xbf, 3, 2, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x04000000}, - 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{0xbf, 3, 2, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000200}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0x7456f6fd}, - {0xbf, 3, 2, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000100}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0xe8adedfa}, - {0xbf, 3, 2, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000080}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0xd15bdbf4}, - {0xbf, 3, 2, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000040}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0xa2b7b7e9}, - {0xbf, 3, 2, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000020}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0x456f6fd3}, - {0xbf, 3, 2, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000010}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0x8adedfa7}, - {0xbf, 3, 2, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x00000008}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0x15bdbf4f}, - {0x61, 3, 8, 12, 0x00000000}, - {0xbf, 5, 2, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00000004}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0x2b7b7e9e}, - {0xdc, 3, 0, 0, 0x00000040}, - {0xbf, 5, 2, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00000002}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0x56f6fd3d}, - {0xc7, 3, 0, 0, 0x00000020}, - {0x57, 2, 0, 0, 0x00000001}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0xadedfa7b}, - {0xb7, 2, 0, 0, 0x00000000}, - {0xbf, 5, 4, 0, 0x00000000}, - {0xa7, 5, 0, 0, 0x5bdbf4f7}, - {0x6d, 2, 3, 1, 0x00000000}, - {0xbf, 5, 4, 0, 0x00000000}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x40000000}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0xb7b7e9ef}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x20000000}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0x6f6fd3df}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x10000000}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0xdedfa7bf}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x08000000}, - {0x15, 4, 0, 1, 0x00000000}, - {0xa7, 5, 0, 0, 0xbdbf4f7f}, - {0xbf, 4, 3, 0, 0x00000000}, - {0x57, 4, 0, 0, 0x04000000}, - {0x15, 4, 0, 1, 0x00000000}, - 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{0xa7, 4, 0, 0, 0x3d59063c}, - {0xbf, 5, 3, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00004000}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0x7ab20c78}, - {0xbf, 5, 3, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00002000}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0xf56418f0}, - {0xbf, 5, 3, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00001000}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0xeac831e1}, - {0xbf, 5, 3, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00000800}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0xd59063c2}, - {0xbf, 5, 3, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00000400}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0xab20c784}, - {0xbf, 5, 3, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00000200}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0x56418f09}, - {0xbf, 5, 3, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00000100}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0xac831e12}, - {0xbf, 5, 3, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00000080}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0x59063c25}, - {0xbf, 5, 3, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00000040}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0xb20c784b}, - {0xbf, 5, 3, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00000020}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0x6418f097}, - {0xbf, 5, 3, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00000010}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0xc831e12f}, - {0xbf, 5, 3, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00000008}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0x9063c25f}, - {0xbf, 5, 3, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00000004}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0x20c784be}, - {0xbf, 5, 3, 0, 0x00000000}, - {0x57, 5, 0, 0, 0x00000002}, - {0x15, 5, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0x418f097c}, - {0x57, 3, 0, 0, 0x00000001}, - {0x15, 3, 0, 1, 0x00000000}, - {0xa7, 4, 0, 0, 0x831e12f9}, - {0xbf, 5, 1, 0, 0x00000000}, - {0x67, 5, 0, 0, 0x00000020}, - {0xc7, 5, 0, 0, 0x00000020}, - {0xbf, 3, 4, 0, 0x00000000}, - {0xa7, 3, 0, 0, 0x063c25f3}, - {0x6d, 2, 5, 1, 0x00000000}, - {0xbf, 3, 4, 0, 0x00000000}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x40000000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x0c784be7}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x20000000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x18f097cf}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x10000000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x31e12f9f}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x08000000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x63c25f3f}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x04000000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0xc784be7f}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x02000000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x8f097cff}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x01000000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x1e12f9fe}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00800000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x3c25f3fc}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00400000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x784be7f8}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00200000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0xf097cff0}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00100000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0xe12f9fe0}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00080000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0xc25f3fc1}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00040000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x84be7f83}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00020000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x097cff07}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00010000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x12f9fe0f}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00008000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x25f3fc1f}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00004000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x4be7f83f}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00002000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x97cff07f}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00001000}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x2f9fe0fe}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000800}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x5f3fc1fd}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000400}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0xbe7f83fb}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000200}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x7cff07f7}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000100}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0xf9fe0fee}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000080}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0xf3fc1fdc}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000040}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0xe7f83fb8}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000020}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0xcff07f70}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000010}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x9fe0fee1}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000008}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x3fc1fdc2}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000004}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0x7f83fb85}, - {0xbf, 2, 1, 0, 0x00000000}, - {0x57, 2, 0, 0, 0x00000002}, - {0x15, 2, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0xff07f70a}, - {0x57, 1, 0, 0, 0x00000001}, - {0x15, 1, 0, 1, 0x00000000}, - {0xa7, 3, 0, 0, 0xfe0fee15}, - {0x71, 1, 0, 201, 0x00000000}, - {0x67, 1, 0, 0, 0x00000008}, - {0x71, 2, 0, 200, 0x00000000}, - {0x4f, 1, 2, 0, 0x00000000}, - {0x71, 2, 0, 202, 0x00000000}, - {0x67, 2, 0, 0, 0x00000010}, - {0x71, 4, 0, 203, 0x00000000}, - {0x67, 4, 0, 0, 0x00000018}, - {0x4f, 4, 2, 0, 0x00000000}, - {0x4f, 4, 1, 0, 0x00000000}, - {0x67, 3, 0, 0, 0x00000020}, - {0x77, 3, 0, 0, 0x00000020}, - {0x9f, 3, 4, 0, 0x00000000}, - {0x57, 3, 0, 0, 0x0000000f}, - {0x67, 3, 0, 0, 0x00000002}, - {0x0f, 0, 3, 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}, - {0x67, 2, 0, 0, 0x00000010}, - {0x71, 3, 0, 139, 0x00000000}, - {0x67, 3, 0, 0, 0x00000018}, - {0x4f, 3, 2, 0, 0x00000000}, - {0x4f, 3, 1, 0, 0x00000000}, - {0x07, 3, 0, 0, 0x7cafe800}, - {0x63, 6, 3, 52, 0x00000000}, - {0xb7, 7, 0, 0, 0x00000001}, - {0xbf, 0, 7, 0, 0x00000000}, - {0x95, 0, 0, 0, 0x00000000}, -}; diff --git a/drivers/net/tap/tap_flow.c b/drivers/net/tap/tap_flow.c index ed4d42f92f9f..84e816d80043 100644 --- a/drivers/net/tap/tap_flow.c +++ b/drivers/net/tap/tap_flow.c @@ -56,71 +56,6 @@ enum { TCA_FLOWER_KEY_VLAN_ETH_TYPE, /* be16 */ }; #endif -/* - * For kernels < 4.2 BPF related enums may not be defined. - * Runtime checks will be carried out to gracefully report on TC messages that - * are rejected by the kernel. Rejection reasons may be due to: - * 1. enum is not defined - * 2. enum is defined but kernel is not configured to support BPF system calls, - * BPF classifications or BPF actions. - */ -#ifndef HAVE_TC_BPF -enum { - TCA_BPF_UNSPEC, - TCA_BPF_ACT, - TCA_BPF_POLICE, - TCA_BPF_CLASSID, - TCA_BPF_OPS_LEN, - TCA_BPF_OPS, -}; -#endif -#ifndef HAVE_TC_BPF_FD -enum { - TCA_BPF_FD = TCA_BPF_OPS + 1, - TCA_BPF_NAME, -}; -#endif -#ifndef HAVE_TC_ACT_BPF -#define tc_gen \ - __u32 index; \ - __u32 capab; \ - int action; \ - int refcnt; \ - int bindcnt - -struct tc_act_bpf { - tc_gen; -}; - -enum { - TCA_ACT_BPF_UNSPEC, - TCA_ACT_BPF_TM, - TCA_ACT_BPF_PARMS, - TCA_ACT_BPF_OPS_LEN, - TCA_ACT_BPF_OPS, -}; - -#endif -#ifndef HAVE_TC_ACT_BPF_FD -enum { - TCA_ACT_BPF_FD = TCA_ACT_BPF_OPS + 1, - TCA_ACT_BPF_NAME, -}; -#endif - -/* RSS key management */ -enum bpf_rss_key_e { - KEY_CMD_GET = 1, - KEY_CMD_RELEASE, - KEY_CMD_INIT, - KEY_CMD_DEINIT, -}; - -enum key_status_e { - KEY_STAT_UNSPEC, - KEY_STAT_USED, - KEY_STAT_AVAILABLE, -}; #define ISOLATE_HANDLE 1 #define REMOTE_PROMISCUOUS_HANDLE 2 @@ -128,8 +63,6 @@ enum key_status_e { struct rte_flow { LIST_ENTRY(rte_flow) next; /* Pointer to the next rte_flow structure */ struct rte_flow *remote_flow; /* associated remote flow */ - int bpf_fd[SEC_MAX]; /* list of bfs fds per ELF section */ - uint32_t key_idx; /* RSS rule key index into BPF map */ struct nlmsg msg; }; @@ -157,11 +90,6 @@ struct action_data { struct tc_skbedit skbedit; uint16_t queue; } skbedit; - struct bpf { - struct tc_act_bpf bpf; - int bpf_fd; - const char *annotation; - } bpf; }; }; @@ -185,10 +113,6 @@ tap_flow_create(struct rte_eth_dev *dev, const struct rte_flow_action actions[], struct rte_flow_error *error); -static void -tap_flow_free(struct pmd_internals *pmd, - struct rte_flow *flow); - static int tap_flow_destroy(struct rte_eth_dev *dev, struct rte_flow *flow, @@ -199,14 +123,6 @@ tap_flow_isolate(struct rte_eth_dev *dev, int set, struct rte_flow_error *error); -static int bpf_rss_key(enum bpf_rss_key_e cmd, __u32 *key_idx); -static int rss_enable(struct pmd_internals *pmd, - const struct rte_flow_attr *attr, - struct rte_flow_error *error); -static int rss_add_actions(struct rte_flow *flow, struct pmd_internals *pmd, - const struct rte_flow_action_rss *rss, - struct rte_flow_error *error); - static const struct rte_flow_ops tap_flow_ops = { .validate = tap_flow_validate, .create = tap_flow_create, @@ -901,7 +817,7 @@ tap_flow_item_validate(const struct rte_flow_item *item, /** * Configure the kernel with a TC action and its configured parameters - * Handled actions: "gact", "mirred", "skbedit", "bpf" + * Handled actions: "gact", "mirred", "skbedit" * * @param[in] flow * Pointer to rte flow containing the netlink message @@ -944,14 +860,6 @@ add_action(struct rte_flow *flow, size_t *act_index, struct action_data *adata) &adata->skbedit.skbedit); tap_nlattr_add16(&msg->nh, TCA_SKBEDIT_QUEUE_MAPPING, adata->skbedit.queue); - } else if (strcmp("bpf", adata->id) == 0) { - tap_nlattr_add32(&msg->nh, TCA_ACT_BPF_FD, adata->bpf.bpf_fd); - tap_nlattr_add(&msg->nh, TCA_ACT_BPF_NAME, - strlen(adata->bpf.annotation) + 1, - adata->bpf.annotation); - tap_nlattr_add(&msg->nh, TCA_ACT_BPF_PARMS, - sizeof(adata->bpf.bpf), - &adata->bpf.bpf); } else { return -1; } @@ -1216,21 +1124,6 @@ priv_flow_process(struct pmd_internals *pmd, err = add_actions(flow, 1, &adata, TCA_FLOWER_ACT); } - } else if (actions->type == RTE_FLOW_ACTION_TYPE_RSS) { - const struct rte_flow_action_rss *rss = - (const struct rte_flow_action_rss *) - actions->conf; - - if (action++) - goto exit_action_not_supported; - - if (!pmd->rss_enabled) { - err = rss_enable(pmd, attr, error); - if (err) - goto exit_action_not_supported; - } - if (flow) - err = rss_add_actions(flow, pmd, rss, error); } else { goto exit_action_not_supported; } @@ -1318,38 +1211,6 @@ tap_flow_set_handle(struct rte_flow *flow) flow->msg.t.tcm_handle = handle; } -/** - * Free the flow opened file descriptors and allocated memory - * - * @param[in] flow - * Pointer to the flow to free - * - */ -static void -tap_flow_free(struct pmd_internals *pmd, struct rte_flow *flow) -{ - int i; - - if (!flow) - return; - - if (pmd->rss_enabled) { - /* Close flow BPF file descriptors */ - for (i = 0; i < SEC_MAX; i++) - if (flow->bpf_fd[i] != 0) { - close(flow->bpf_fd[i]); - flow->bpf_fd[i] = 0; - } - - /* Release the map key for this RSS rule */ - bpf_rss_key(KEY_CMD_RELEASE, &flow->key_idx); - flow->key_idx = 0; - } - - /* Free flow allocated memory */ - rte_free(flow); -} - /** * Create a flow. * @@ -1466,8 +1327,7 @@ tap_flow_create(struct rte_eth_dev *dev, return flow; fail: rte_free(remote_flow); - if (flow) - tap_flow_free(pmd, flow); + rte_free(flow); return NULL; } @@ -1541,7 +1401,7 @@ tap_flow_destroy_pmd(struct pmd_internals *pmd, } end: rte_free(remote_flow); - tap_flow_free(pmd, flow); + rte_free(flow); return ret; } @@ -1812,356 +1672,6 @@ tap_flow_implicit_flush(struct pmd_internals *pmd, struct rte_flow_error *error) return 0; } -#define MAX_RSS_KEYS 256 -#define KEY_IDX_OFFSET (3 * MAX_RSS_KEYS) -#define SEC_NAME_CLS_Q "cls_q" - -static const char *sec_name[SEC_MAX] = { - [SEC_L3_L4] = "l3_l4", -}; - -/** - * Enable RSS on tap: create TC rules for queuing. - * - * @param[in, out] pmd - * Pointer to private structure. - * - * @param[in] attr - * Pointer to rte_flow to get flow group - * - * @param[out] error - * Pointer to error reporting if not NULL. - * - * @return 0 on success, negative value on failure. - */ -static int rss_enable(struct pmd_internals *pmd, - const struct rte_flow_attr *attr, - struct rte_flow_error *error) -{ - struct rte_flow *rss_flow = NULL; - struct nlmsg *msg = NULL; - /* 4096 is the maximum number of instructions for a BPF program */ - char annotation[64]; - int i; - int err = 0; - - /* unlimit locked memory */ - struct rlimit memlock_limit = { - .rlim_cur = RLIM_INFINITY, - .rlim_max = RLIM_INFINITY, - }; - setrlimit(RLIMIT_MEMLOCK, &memlock_limit); - - /* Get a new map key for a new RSS rule */ - err = bpf_rss_key(KEY_CMD_INIT, NULL); - if (err < 0) { - rte_flow_error_set( - error, EINVAL, RTE_FLOW_ERROR_TYPE_HANDLE, NULL, - "Failed to initialize BPF RSS keys"); - - return -1; - } - - /* - * Create BPF RSS MAP - */ - pmd->map_fd = tap_flow_bpf_rss_map_create(sizeof(__u32), /* key size */ - sizeof(struct rss_key), - MAX_RSS_KEYS); - if (pmd->map_fd < 0) { - TAP_LOG(ERR, - "Failed to create BPF map (%d): %s", - errno, strerror(errno)); - rte_flow_error_set( - error, ENOTSUP, RTE_FLOW_ERROR_TYPE_HANDLE, NULL, - "Kernel too old or not configured " - "to support BPF maps"); - - return -ENOTSUP; - } - - /* - * Add a rule per queue to match reclassified packets and direct them to - * the correct queue. - */ - for (i = 0; i < pmd->dev->data->nb_rx_queues; i++) { - pmd->bpf_fd[i] = tap_flow_bpf_cls_q(i); - if (pmd->bpf_fd[i] < 0) { - TAP_LOG(ERR, - "Failed to load BPF section %s for queue %d", - SEC_NAME_CLS_Q, i); - rte_flow_error_set( - error, ENOTSUP, RTE_FLOW_ERROR_TYPE_HANDLE, - NULL, - "Kernel too old or not configured " - "to support BPF programs loading"); - - return -ENOTSUP; - } - - rss_flow = rte_zmalloc(__func__, sizeof(struct rte_flow), 0); - if (!rss_flow) { - TAP_LOG(ERR, - "Cannot allocate memory for rte_flow"); - return -1; - } - msg = &rss_flow->msg; - tc_init_msg(msg, pmd->if_index, RTM_NEWTFILTER, NLM_F_REQUEST | - NLM_F_ACK | NLM_F_EXCL | NLM_F_CREATE); - msg->t.tcm_info = TC_H_MAKE(0, htons(ETH_P_ALL)); - tap_flow_set_handle(rss_flow); - uint16_t group = attr->group << GROUP_SHIFT; - uint16_t prio = group | (i + PRIORITY_OFFSET); - msg->t.tcm_info = TC_H_MAKE(prio << 16, msg->t.tcm_info); - msg->t.tcm_parent = TC_H_MAKE(MULTIQ_MAJOR_HANDLE, 0); - - tap_nlattr_add(&msg->nh, TCA_KIND, sizeof("bpf"), "bpf"); - if (tap_nlattr_nested_start(msg, TCA_OPTIONS) < 0) - return -1; - tap_nlattr_add32(&msg->nh, TCA_BPF_FD, pmd->bpf_fd[i]); - snprintf(annotation, sizeof(annotation), "[%s%d]", - SEC_NAME_CLS_Q, i); - tap_nlattr_add(&msg->nh, TCA_BPF_NAME, strlen(annotation) + 1, - annotation); - /* Actions */ - { - struct action_data adata = { - .id = "skbedit", - .skbedit = { - .skbedit = { - .action = TC_ACT_PIPE, - }, - .queue = i, - }, - }; - if (add_actions(rss_flow, 1, &adata, TCA_BPF_ACT) < 0) - return -1; - } - tap_nlattr_nested_finish(msg); /* nested TCA_OPTIONS */ - - /* Netlink message is now ready to be sent */ - if (tap_nl_send(pmd->nlsk_fd, &msg->nh) < 0) - return -1; - err = tap_nl_recv_ack(pmd->nlsk_fd); - if (err < 0) { - TAP_LOG(ERR, - "Kernel refused TC filter rule creation (%d): %s", - errno, strerror(errno)); - return err; - } - LIST_INSERT_HEAD(&pmd->rss_flows, rss_flow, next); - } - - pmd->rss_enabled = 1; - return err; -} - -/** - * Manage bpf RSS keys repository with operations: init, get, release - * - * @param[in] cmd - * Command on RSS keys: init, get, release - * - * @param[in, out] key_idx - * Pointer to RSS Key index (out for get command, in for release command) - * - * @return -1 if couldn't get, release or init the RSS keys, 0 otherwise. - */ -static int bpf_rss_key(enum bpf_rss_key_e cmd, __u32 *key_idx) -{ - __u32 i; - int err = 0; - static __u32 num_used_keys; - static __u32 rss_keys[MAX_RSS_KEYS] = {KEY_STAT_UNSPEC}; - static __u32 rss_keys_initialized; - __u32 key; - - switch (cmd) { - case KEY_CMD_GET: - if (!rss_keys_initialized) { - err = -1; - break; - } - - if (num_used_keys == RTE_DIM(rss_keys)) { - err = -1; - break; - } - - *key_idx = num_used_keys % RTE_DIM(rss_keys); - while (rss_keys[*key_idx] == KEY_STAT_USED) - *key_idx = (*key_idx + 1) % RTE_DIM(rss_keys); - - rss_keys[*key_idx] = KEY_STAT_USED; - - /* - * Add an offset to key_idx in order to handle a case of - * RSS and non RSS flows mixture. - * If a non RSS flow is destroyed it has an eBPF map - * index 0 (initialized on flow creation) and might - * unintentionally remove RSS entry 0 from eBPF map. - * To avoid this issue, add an offset to the real index - * during a KEY_CMD_GET operation and subtract this offset - * during a KEY_CMD_RELEASE operation in order to restore - * the real index. - */ - *key_idx += KEY_IDX_OFFSET; - num_used_keys++; - break; - - case KEY_CMD_RELEASE: - if (!rss_keys_initialized) - break; - - /* - * Subtract offset to restore real key index - * If a non RSS flow is falsely trying to release map - * entry 0 - the offset subtraction will calculate the real - * map index as an out-of-range value and the release operation - * will be silently ignored. - */ - key = *key_idx - KEY_IDX_OFFSET; - if (key >= RTE_DIM(rss_keys)) - break; - - if (rss_keys[key] == KEY_STAT_USED) { - rss_keys[key] = KEY_STAT_AVAILABLE; - num_used_keys--; - } - break; - - case KEY_CMD_INIT: - for (i = 0; i < RTE_DIM(rss_keys); i++) - rss_keys[i] = KEY_STAT_AVAILABLE; - - rss_keys_initialized = 1; - num_used_keys = 0; - break; - - case KEY_CMD_DEINIT: - for (i = 0; i < RTE_DIM(rss_keys); i++) - rss_keys[i] = KEY_STAT_UNSPEC; - - rss_keys_initialized = 0; - num_used_keys = 0; - break; - - default: - break; - } - - return err; -} - -/** - * Add RSS hash calculations and queue selection - * - * @param[in, out] pmd - * Pointer to internal structure. Used to set/get RSS map fd - * - * @param[in] rss - * Pointer to RSS flow actions - * - * @param[out] error - * Pointer to error reporting if not NULL. - * - * @return 0 on success, negative value on failure - */ -static int rss_add_actions(struct rte_flow *flow, struct pmd_internals *pmd, - const struct rte_flow_action_rss *rss, - struct rte_flow_error *error) -{ - /* 4096 is the maximum number of instructions for a BPF program */ - unsigned int i; - int err; - struct rss_key rss_entry = { .hash_fields = 0, - .key_size = 0 }; - - /* Check supported RSS features */ - if (rss->func != RTE_ETH_HASH_FUNCTION_DEFAULT) - return rte_flow_error_set - (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, - "non-default RSS hash functions are not supported"); - if (rss->level) - return rte_flow_error_set - (error, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, - "a nonzero RSS encapsulation level is not supported"); - - /* Get a new map key for a new RSS rule */ - err = bpf_rss_key(KEY_CMD_GET, &flow->key_idx); - if (err < 0) { - rte_flow_error_set( - error, EINVAL, RTE_FLOW_ERROR_TYPE_HANDLE, NULL, - "Failed to get BPF RSS key"); - - return -1; - } - - /* Update RSS map entry with queues */ - rss_entry.nb_queues = rss->queue_num; - for (i = 0; i < rss->queue_num; i++) - rss_entry.queues[i] = rss->queue[i]; - rss_entry.hash_fields = - (1 << HASH_FIELD_IPV4_L3_L4) | (1 << HASH_FIELD_IPV6_L3_L4); - - /* Add this RSS entry to map */ - err = tap_flow_bpf_update_rss_elem(pmd->map_fd, - &flow->key_idx, &rss_entry); - - if (err) { - TAP_LOG(ERR, - "Failed to update BPF map entry #%u (%d): %s", - flow->key_idx, errno, strerror(errno)); - rte_flow_error_set( - error, ENOTSUP, RTE_FLOW_ERROR_TYPE_HANDLE, NULL, - "Kernel too old or not configured " - "to support BPF maps updates"); - - return -ENOTSUP; - } - - - /* - * Load bpf rules to calculate hash for this key_idx - */ - - flow->bpf_fd[SEC_L3_L4] = - tap_flow_bpf_calc_l3_l4_hash(flow->key_idx, pmd->map_fd); - if (flow->bpf_fd[SEC_L3_L4] < 0) { - TAP_LOG(ERR, - "Failed to load BPF section %s (%d): %s", - sec_name[SEC_L3_L4], errno, strerror(errno)); - rte_flow_error_set( - error, ENOTSUP, RTE_FLOW_ERROR_TYPE_HANDLE, NULL, - "Kernel too old or not configured " - "to support BPF program loading"); - - return -ENOTSUP; - } - - /* Actions */ - { - struct action_data adata[] = { - { - .id = "bpf", - .bpf = { - .bpf_fd = flow->bpf_fd[SEC_L3_L4], - .annotation = sec_name[SEC_L3_L4], - .bpf = { - .action = TC_ACT_PIPE, - }, - }, - }, - }; - - if (add_actions(flow, RTE_DIM(adata), adata, - TCA_FLOWER_ACT) < 0) - return -1; - } - - return 0; -} - /** * Get rte_flow operations. * diff --git a/drivers/net/tap/tap_flow.h b/drivers/net/tap/tap_flow.h index 240fbc3dfaef..099704437b2f 100644 --- a/drivers/net/tap/tap_flow.h +++ b/drivers/net/tap/tap_flow.h @@ -41,11 +41,6 @@ enum implicit_rule_index { TAP_REMOTE_MAX_IDX, }; -enum bpf_fd_idx { - SEC_L3_L4, - SEC_MAX, -}; - int tap_dev_flow_ops_get(struct rte_eth_dev *dev, const struct rte_flow_ops **ops); int tap_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error); @@ -56,11 +51,4 @@ int tap_flow_implicit_destroy(struct pmd_internals *pmd, enum implicit_rule_index idx); 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); -int tap_flow_bpf_rss_map_create(unsigned int key_size, unsigned int value_size, - unsigned int max_entries); -int tap_flow_bpf_update_rss_elem(int fd, void *key, void *value); - #endif /* _TAP_FLOW_H_ */ diff --git a/drivers/net/tap/tap_tcmsgs.h b/drivers/net/tap/tap_tcmsgs.h index a64cb29d6fa8..4b0413579749 100644 --- a/drivers/net/tap/tap_tcmsgs.h +++ b/drivers/net/tap/tap_tcmsgs.h @@ -14,9 +14,6 @@ #include #include #include -#ifdef HAVE_TC_ACT_BPF -#include -#endif #include #include