mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-26 13:25:15 +07:00
a1270fe95b
The program nrm creates a cgroup and attaches a BPF program to the
cgroup for testing HBM (Host Bandwidth Manager) for egress traffic.
One still needs to create network traffic. This can be done through
netesto, netperf or iperf3.
A follow-up patch contains a script to create traffic.
USAGE: hbm [-d] [-l] [-n <id>] [-r <rate>] [-s] [-t <secs>]
[-w] [-h] [prog]
Where:
-d Print BPF trace debug buffer
-l Also limit flows doing loopback
-n <#> To create cgroup "/hbm#" and attach prog. Default is /nrm1
This is convenient when testing HBM in more than 1 cgroup
-r <rate> Rate limit in Mbps
-s Get HBM stats (marked, dropped, etc.)
-t <time> Exit after specified seconds (deault is 0)
-w Work conserving flag. cgroup can increase its bandwidth
beyond the rate limit specified while there is available
bandwidth. Current implementation assumes there is only
NIC (eth0), but can be extended to support multiple NICs.
Currrently only supported for egress. Note, this is just
a proof of concept.
-h Print this info
prog BPF program file name. Name defaults to hbm_out_kern.o
More information about HBM can be found in the paper "BPF Host Resource
Management" presented at the 2018 Linux Plumbers Conference, Networking Track
(http://vger.kernel.org/lpc_net2018_talks/LPC%20BPF%20Network%20Resource%20Paper.pdf)
Signed-off-by: Lawrence Brakmo <brakmo@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
289 lines
9.8 KiB
Makefile
289 lines
9.8 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
|
|
|
|
BPF_SAMPLES_PATH ?= $(abspath $(srctree)/$(src))
|
|
TOOLS_PATH := $(BPF_SAMPLES_PATH)/../../tools
|
|
|
|
# List of programs to build
|
|
hostprogs-y := test_lru_dist
|
|
hostprogs-y += sock_example
|
|
hostprogs-y += fds_example
|
|
hostprogs-y += sockex1
|
|
hostprogs-y += sockex2
|
|
hostprogs-y += sockex3
|
|
hostprogs-y += tracex1
|
|
hostprogs-y += tracex2
|
|
hostprogs-y += tracex3
|
|
hostprogs-y += tracex4
|
|
hostprogs-y += tracex5
|
|
hostprogs-y += tracex6
|
|
hostprogs-y += tracex7
|
|
hostprogs-y += test_probe_write_user
|
|
hostprogs-y += trace_output
|
|
hostprogs-y += lathist
|
|
hostprogs-y += offwaketime
|
|
hostprogs-y += spintest
|
|
hostprogs-y += map_perf_test
|
|
hostprogs-y += test_overhead
|
|
hostprogs-y += test_cgrp2_array_pin
|
|
hostprogs-y += test_cgrp2_attach
|
|
hostprogs-y += test_cgrp2_attach2
|
|
hostprogs-y += test_cgrp2_sock
|
|
hostprogs-y += test_cgrp2_sock2
|
|
hostprogs-y += xdp1
|
|
hostprogs-y += xdp2
|
|
hostprogs-y += xdp_router_ipv4
|
|
hostprogs-y += test_current_task_under_cgroup
|
|
hostprogs-y += trace_event
|
|
hostprogs-y += sampleip
|
|
hostprogs-y += tc_l2_redirect
|
|
hostprogs-y += lwt_len_hist
|
|
hostprogs-y += xdp_tx_iptunnel
|
|
hostprogs-y += test_map_in_map
|
|
hostprogs-y += per_socket_stats_example
|
|
hostprogs-y += xdp_redirect
|
|
hostprogs-y += xdp_redirect_map
|
|
hostprogs-y += xdp_redirect_cpu
|
|
hostprogs-y += xdp_monitor
|
|
hostprogs-y += xdp_rxq_info
|
|
hostprogs-y += syscall_tp
|
|
hostprogs-y += cpustat
|
|
hostprogs-y += xdp_adjust_tail
|
|
hostprogs-y += xdpsock
|
|
hostprogs-y += xdp_fwd
|
|
hostprogs-y += task_fd_query
|
|
hostprogs-y += xdp_sample_pkts
|
|
hostprogs-y += hbm
|
|
|
|
# Libbpf dependencies
|
|
LIBBPF = $(TOOLS_PATH)/lib/bpf/libbpf.a
|
|
|
|
CGROUP_HELPERS := ../../tools/testing/selftests/bpf/cgroup_helpers.o
|
|
TRACE_HELPERS := ../../tools/testing/selftests/bpf/trace_helpers.o
|
|
|
|
fds_example-objs := fds_example.o
|
|
sockex1-objs := sockex1_user.o
|
|
sockex2-objs := sockex2_user.o
|
|
sockex3-objs := bpf_load.o sockex3_user.o
|
|
tracex1-objs := bpf_load.o tracex1_user.o
|
|
tracex2-objs := bpf_load.o tracex2_user.o
|
|
tracex3-objs := bpf_load.o tracex3_user.o
|
|
tracex4-objs := bpf_load.o tracex4_user.o
|
|
tracex5-objs := bpf_load.o tracex5_user.o
|
|
tracex6-objs := bpf_load.o tracex6_user.o
|
|
tracex7-objs := bpf_load.o tracex7_user.o
|
|
test_probe_write_user-objs := bpf_load.o test_probe_write_user_user.o
|
|
trace_output-objs := bpf_load.o trace_output_user.o $(TRACE_HELPERS)
|
|
lathist-objs := bpf_load.o lathist_user.o
|
|
offwaketime-objs := bpf_load.o offwaketime_user.o $(TRACE_HELPERS)
|
|
spintest-objs := bpf_load.o spintest_user.o $(TRACE_HELPERS)
|
|
map_perf_test-objs := bpf_load.o map_perf_test_user.o
|
|
test_overhead-objs := bpf_load.o test_overhead_user.o
|
|
test_cgrp2_array_pin-objs := test_cgrp2_array_pin.o
|
|
test_cgrp2_attach-objs := test_cgrp2_attach.o
|
|
test_cgrp2_attach2-objs := test_cgrp2_attach2.o $(CGROUP_HELPERS)
|
|
test_cgrp2_sock-objs := test_cgrp2_sock.o
|
|
test_cgrp2_sock2-objs := bpf_load.o test_cgrp2_sock2.o
|
|
xdp1-objs := xdp1_user.o
|
|
# reuse xdp1 source intentionally
|
|
xdp2-objs := xdp1_user.o
|
|
xdp_router_ipv4-objs := xdp_router_ipv4_user.o
|
|
test_current_task_under_cgroup-objs := bpf_load.o $(CGROUP_HELPERS) \
|
|
test_current_task_under_cgroup_user.o
|
|
trace_event-objs := bpf_load.o trace_event_user.o $(TRACE_HELPERS)
|
|
sampleip-objs := bpf_load.o sampleip_user.o $(TRACE_HELPERS)
|
|
tc_l2_redirect-objs := bpf_load.o tc_l2_redirect_user.o
|
|
lwt_len_hist-objs := bpf_load.o lwt_len_hist_user.o
|
|
xdp_tx_iptunnel-objs := xdp_tx_iptunnel_user.o
|
|
test_map_in_map-objs := bpf_load.o test_map_in_map_user.o
|
|
per_socket_stats_example-objs := cookie_uid_helper_example.o
|
|
xdp_redirect-objs := xdp_redirect_user.o
|
|
xdp_redirect_map-objs := xdp_redirect_map_user.o
|
|
xdp_redirect_cpu-objs := bpf_load.o xdp_redirect_cpu_user.o
|
|
xdp_monitor-objs := bpf_load.o xdp_monitor_user.o
|
|
xdp_rxq_info-objs := xdp_rxq_info_user.o
|
|
syscall_tp-objs := bpf_load.o syscall_tp_user.o
|
|
cpustat-objs := bpf_load.o cpustat_user.o
|
|
xdp_adjust_tail-objs := xdp_adjust_tail_user.o
|
|
xdpsock-objs := xdpsock_user.o
|
|
xdp_fwd-objs := xdp_fwd_user.o
|
|
task_fd_query-objs := bpf_load.o task_fd_query_user.o $(TRACE_HELPERS)
|
|
xdp_sample_pkts-objs := xdp_sample_pkts_user.o $(TRACE_HELPERS)
|
|
hbm-objs := bpf_load.o hbm.o $(CGROUP_HELPERS)
|
|
|
|
# Tell kbuild to always build the programs
|
|
always := $(hostprogs-y)
|
|
always += sockex1_kern.o
|
|
always += sockex2_kern.o
|
|
always += sockex3_kern.o
|
|
always += tracex1_kern.o
|
|
always += tracex2_kern.o
|
|
always += tracex3_kern.o
|
|
always += tracex4_kern.o
|
|
always += tracex5_kern.o
|
|
always += tracex6_kern.o
|
|
always += tracex7_kern.o
|
|
always += sock_flags_kern.o
|
|
always += test_probe_write_user_kern.o
|
|
always += trace_output_kern.o
|
|
always += tcbpf1_kern.o
|
|
always += tc_l2_redirect_kern.o
|
|
always += lathist_kern.o
|
|
always += offwaketime_kern.o
|
|
always += spintest_kern.o
|
|
always += map_perf_test_kern.o
|
|
always += test_overhead_tp_kern.o
|
|
always += test_overhead_raw_tp_kern.o
|
|
always += test_overhead_kprobe_kern.o
|
|
always += parse_varlen.o parse_simple.o parse_ldabs.o
|
|
always += test_cgrp2_tc_kern.o
|
|
always += xdp1_kern.o
|
|
always += xdp2_kern.o
|
|
always += xdp_router_ipv4_kern.o
|
|
always += test_current_task_under_cgroup_kern.o
|
|
always += trace_event_kern.o
|
|
always += sampleip_kern.o
|
|
always += lwt_len_hist_kern.o
|
|
always += xdp_tx_iptunnel_kern.o
|
|
always += test_map_in_map_kern.o
|
|
always += cookie_uid_helper_example.o
|
|
always += tcp_synrto_kern.o
|
|
always += tcp_rwnd_kern.o
|
|
always += tcp_bufs_kern.o
|
|
always += tcp_cong_kern.o
|
|
always += tcp_iw_kern.o
|
|
always += tcp_clamp_kern.o
|
|
always += tcp_basertt_kern.o
|
|
always += tcp_tos_reflect_kern.o
|
|
always += xdp_redirect_kern.o
|
|
always += xdp_redirect_map_kern.o
|
|
always += xdp_redirect_cpu_kern.o
|
|
always += xdp_monitor_kern.o
|
|
always += xdp_rxq_info_kern.o
|
|
always += xdp2skb_meta_kern.o
|
|
always += syscall_tp_kern.o
|
|
always += cpustat_kern.o
|
|
always += xdp_adjust_tail_kern.o
|
|
always += xdp_fwd_kern.o
|
|
always += task_fd_query_kern.o
|
|
always += xdp_sample_pkts_kern.o
|
|
always += hbm_out_kern.o
|
|
|
|
KBUILD_HOSTCFLAGS += -I$(objtree)/usr/include
|
|
KBUILD_HOSTCFLAGS += -I$(srctree)/tools/lib/
|
|
KBUILD_HOSTCFLAGS += -I$(srctree)/tools/testing/selftests/bpf/
|
|
KBUILD_HOSTCFLAGS += -I$(srctree)/tools/lib/ -I$(srctree)/tools/include
|
|
KBUILD_HOSTCFLAGS += -I$(srctree)/tools/perf
|
|
|
|
HOSTCFLAGS_bpf_load.o += -I$(objtree)/usr/include -Wno-unused-variable
|
|
HOSTCFLAGS_trace_helpers.o += -I$(srctree)/tools/lib/bpf/
|
|
|
|
HOSTCFLAGS_trace_output_user.o += -I$(srctree)/tools/lib/bpf/
|
|
HOSTCFLAGS_offwaketime_user.o += -I$(srctree)/tools/lib/bpf/
|
|
HOSTCFLAGS_spintest_user.o += -I$(srctree)/tools/lib/bpf/
|
|
HOSTCFLAGS_trace_event_user.o += -I$(srctree)/tools/lib/bpf/
|
|
HOSTCFLAGS_sampleip_user.o += -I$(srctree)/tools/lib/bpf/
|
|
HOSTCFLAGS_task_fd_query_user.o += -I$(srctree)/tools/lib/bpf/
|
|
HOSTCFLAGS_xdp_sample_pkts_user.o += -I$(srctree)/tools/lib/bpf/
|
|
|
|
KBUILD_HOSTLDLIBS += $(LIBBPF) -lelf
|
|
HOSTLDLIBS_tracex4 += -lrt
|
|
HOSTLDLIBS_trace_output += -lrt
|
|
HOSTLDLIBS_map_perf_test += -lrt
|
|
HOSTLDLIBS_test_overhead += -lrt
|
|
HOSTLDLIBS_xdpsock += -pthread
|
|
|
|
# Allows pointing LLC/CLANG to a LLVM backend with bpf support, redefine on cmdline:
|
|
# make samples/bpf/ LLC=~/git/llvm/build/bin/llc CLANG=~/git/llvm/build/bin/clang
|
|
LLC ?= llc
|
|
CLANG ?= clang
|
|
LLVM_OBJCOPY ?= llvm-objcopy
|
|
BTF_PAHOLE ?= pahole
|
|
|
|
# Detect that we're cross compiling and use the cross compiler
|
|
ifdef CROSS_COMPILE
|
|
HOSTCC = $(CROSS_COMPILE)gcc
|
|
CLANG_ARCH_ARGS = -target $(ARCH)
|
|
endif
|
|
|
|
BTF_LLC_PROBE := $(shell $(LLC) -march=bpf -mattr=help 2>&1 | grep dwarfris)
|
|
BTF_PAHOLE_PROBE := $(shell $(BTF_PAHOLE) --help 2>&1 | grep BTF)
|
|
BTF_OBJCOPY_PROBE := $(shell $(LLVM_OBJCOPY) --help 2>&1 | grep -i 'usage.*llvm')
|
|
BTF_LLVM_PROBE := $(shell echo "int main() { return 0; }" | \
|
|
$(CLANG) -target bpf -O2 -g -c -x c - -o ./llvm_btf_verify.o; \
|
|
readelf -S ./llvm_btf_verify.o | grep BTF; \
|
|
/bin/rm -f ./llvm_btf_verify.o)
|
|
|
|
ifneq ($(BTF_LLVM_PROBE),)
|
|
EXTRA_CFLAGS += -g
|
|
else
|
|
ifneq ($(and $(BTF_LLC_PROBE),$(BTF_PAHOLE_PROBE),$(BTF_OBJCOPY_PROBE)),)
|
|
EXTRA_CFLAGS += -g
|
|
LLC_FLAGS += -mattr=dwarfris
|
|
DWARF2BTF = y
|
|
endif
|
|
endif
|
|
|
|
# Trick to allow make to be run from this directory
|
|
all:
|
|
$(MAKE) -C ../../ $(CURDIR)/ BPF_SAMPLES_PATH=$(CURDIR)
|
|
|
|
clean:
|
|
$(MAKE) -C ../../ M=$(CURDIR) clean
|
|
@rm -f *~
|
|
|
|
$(LIBBPF): FORCE
|
|
# Fix up variables inherited from Kbuild that tools/ build system won't like
|
|
$(MAKE) -C $(dir $@) RM='rm -rf' LDFLAGS= srctree=$(BPF_SAMPLES_PATH)/../../ O=
|
|
|
|
$(obj)/syscall_nrs.h: $(obj)/syscall_nrs.s FORCE
|
|
$(call filechk,offsets,__SYSCALL_NRS_H__)
|
|
|
|
targets += syscall_nrs.s
|
|
clean-files += syscall_nrs.h
|
|
|
|
FORCE:
|
|
|
|
|
|
# Verify LLVM compiler tools are available and bpf target is supported by llc
|
|
.PHONY: verify_cmds verify_target_bpf $(CLANG) $(LLC)
|
|
|
|
verify_cmds: $(CLANG) $(LLC)
|
|
@for TOOL in $^ ; do \
|
|
if ! (which -- "$${TOOL}" > /dev/null 2>&1); then \
|
|
echo "*** ERROR: Cannot find LLVM tool $${TOOL}" ;\
|
|
exit 1; \
|
|
else true; fi; \
|
|
done
|
|
|
|
verify_target_bpf: verify_cmds
|
|
@if ! (${LLC} -march=bpf -mattr=help > /dev/null 2>&1); then \
|
|
echo "*** ERROR: LLVM (${LLC}) does not support 'bpf' target" ;\
|
|
echo " NOTICE: LLVM version >= 3.7.1 required" ;\
|
|
exit 2; \
|
|
else true; fi
|
|
|
|
$(BPF_SAMPLES_PATH)/*.c: verify_target_bpf $(LIBBPF)
|
|
$(src)/*.c: verify_target_bpf $(LIBBPF)
|
|
|
|
$(obj)/tracex5_kern.o: $(obj)/syscall_nrs.h
|
|
$(obj)/hbm_out_kern.o: $(src)/hbm.h $(src)/hbm_kern.h
|
|
$(obj)/hbm.o: $(src)/hbm.h
|
|
|
|
# asm/sysreg.h - inline assembly used by it is incompatible with llvm.
|
|
# But, there is no easy way to fix it, so just exclude it since it is
|
|
# useless for BPF samples.
|
|
$(obj)/%.o: $(src)/%.c
|
|
@echo " CLANG-bpf " $@
|
|
$(Q)$(CLANG) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(EXTRA_CFLAGS) -I$(obj) \
|
|
-I$(srctree)/tools/testing/selftests/bpf/ \
|
|
-D__KERNEL__ -D__BPF_TRACING__ -Wno-unused-value -Wno-pointer-sign \
|
|
-D__TARGET_ARCH_$(ARCH) -Wno-compare-distinct-pointer-types \
|
|
-Wno-gnu-variable-sized-type-not-at-end \
|
|
-Wno-address-of-packed-member -Wno-tautological-compare \
|
|
-Wno-unknown-warning-option $(CLANG_ARCH_ARGS) \
|
|
-I$(srctree)/samples/bpf/ -include asm_goto_workaround.h \
|
|
-O2 -emit-llvm -c $< -o -| $(LLC) -march=bpf $(LLC_FLAGS) -filetype=obj -o $@
|
|
ifeq ($(DWARF2BTF),y)
|
|
$(BTF_PAHOLE) -J $@
|
|
endif
|