diff options
Diffstat (limited to 'build')
-rw-r--r-- | build/external/packages/dpdk.mk | 403 | ||||
-rw-r--r-- | build/external/patches/dpdk_20.08/0002-build-system-selective-libs.patch | 88 |
2 files changed, 271 insertions, 220 deletions
diff --git a/build/external/packages/dpdk.mk b/build/external/packages/dpdk.mk index ef84383d55a..beabf48e94e 100644 --- a/build/external/packages/dpdk.mk +++ b/build/external/packages/dpdk.mk @@ -1,4 +1,4 @@ -# Copyright (c) 2020 Cisco and/or its affiliates. +# Copyright (c) 2018 Cisco and/or its affiliates. # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at: @@ -12,156 +12,295 @@ # limitations under the License. DPDK_PKTMBUF_HEADROOM ?= 128 +DPDK_CACHE_LINE_SIZE ?= 64 +DPDK_DOWNLOAD_DIR ?= $(DL_CACHE_DIR) DPDK_DEBUG ?= n +DPDK_AARCH64_GENERIC ?= y DPDK_MLX4_PMD ?= n DPDK_MLX5_PMD ?= n -DPDK_MLX5_COMMON_PMD ?= n DPDK_TAP_PMD ?= n DPDK_FAILSAFE_PMD ?= n -DPDK_MACHINE ?= default -dpdk_version ?= 20.08 -dpdk_base_url ?= http://fast.dpdk.org/rel -dpdk_tarball := dpdk-$(dpdk_version).tar.xz -dpdk_tarball_md5sum_20.08 := 64badd32cd6bc0761befc8f2402c2148 -dpdk_tarball_md5sum := $(dpdk_tarball_md5sum_$(dpdk_version)) -dpdk_url := $(dpdk_base_url)/$(dpdk_tarball) -dpdk_tarball_strip_dirs := 1 +DPDK_VERSION ?= 20.08 +DPDK_BASE_URL ?= http://fast.dpdk.org/rel +DPDK_TARBALL := dpdk-$(DPDK_VERSION).tar.xz +DPDK_TAR_URL := $(DPDK_BASE_URL)/$(DPDK_TARBALL) +DPDK_18.11_TARBALL_MD5_CKSUM := 04b86f4a77f4f81a7fbd26467dd2ea9f +DPDK_20.05_TARBALL_MD5_CKSUM := 7c6f3e7f7de2422775c4cba116012c4d +DPDK_20.08_TARBALL_MD5_CKSUM := 64badd32cd6bc0761befc8f2402c2148 +MACHINE=$(shell uname -m) -# Debug or release +# replace dot with space, and if 3rd word exists we deal with stable dpdk rel +ifeq ($(word 3,$(subst ., ,$(DPDK_VERSION))),) +DPDK_SOURCE := $(B)/dpdk-$(DPDK_VERSION) +else +DPDK_SOURCE := $(B)/dpdk-stable-$(DPDK_VERSION) +endif + +ifeq ($(MACHINE),$(filter $(MACHINE),x86_64)) + AESNI ?= y + DPDK_BUILD_DEPS := ipsec-mb-install +else + AESNI ?= n +endif + +ifneq (,$(findstring clang,$(CC))) +DPDK_CC=clang +else ifneq (,$(findstring icc,$(CC))) +DPDK_CC=icc +else +DPDK_CC=gcc +endif + +############################################################################## +# Intel x86 +############################################################################## +ifeq ($(MACHINE),$(filter $(MACHINE),x86_64 i686)) +DPDK_TARGET ?= $(MACHINE)-native-linuxapp-$(DPDK_CC) +DPDK_MACHINE ?= nhm +DPDK_TUNE ?= core-avx2 + +############################################################################## +# ARM64 +############################################################################## +else ifeq ($(MACHINE),aarch64) +CROSS := +export CROSS +DPDK_TARGET ?= arm64-armv8a-linuxapp-$(DPDK_CC) +DPDK_MACHINE ?= armv8a +DPDK_TUNE ?= generic +ifeq (y, $(DPDK_AARCH64_GENERIC)) +DPDK_CACHE_LINE_SIZE := 128 +# assign aarch64 variant specific options +else +CPU_IMP_ARM = 0x41 +CPU_IMP_CAVIUM = 0x43 + +CPU_PART_ARM_CORTEX_A53 = 0xd03 +CPU_PART_ARM_CORTEX_A57 = 0xd07 +CPU_PART_ARM_CORTEX_A72 = 0xd08 +CPU_PART_ARM_CORTEX_A73 = 0xd09 + +CPU_PART_CAVIUM_THUNDERX = 0x0a1 +CPU_PART_CAVIUM_THUNDERX_81XX = 0x0a2 +CPU_PART_CAVIUM_THUNDERX_83XX = 0x0a3 -DPDK_BUILD_TYPE:=release -ifeq ($(DPDK_DEBUG), y) -DPDK_BUILD_TYPE:=debug +MIDR_IMPLEMENTER=$(shell awk '/implementer/ {print $$4;exit}' /proc/cpuinfo) +MIDR_PARTNUM=$(shell awk '/part/ {print $$4;exit}' /proc/cpuinfo) + +ifeq ($(MIDR_IMPLEMENTER),$(CPU_IMP_ARM)) +############################################################################## +# Arm Cortex +############################################################################## +CPU_PART_ARM_TUNE := $(CPU_PART_ARM_CORTEX_A53)/cortex-a53 \ + $(CPU_PART_ARM_CORTEX_A57)/cortex-a57 \ + $(CPU_PART_ARM_CORTEX_A72)/cortex-a72 \ + $(CPU_PART_ARM_CORTEX_A73)/cortex-a73 +CPU_TUNE = $(notdir $(filter $(MIDR_PARTNUM)/%,$(CPU_PART_ARM_TUNE))) +ifneq ($(CPU_TUNE),) +DPDK_TUNE = $(CPU_TUNE) +else +$(warning Unknown Arm CPU) endif -DPDK_DRIVERS_DISABLED := baseband/\*, \ - bus/dpaa, \ - bus/ifpga, \ - compress/\*, \ - crypto/ccp, \ - crypto/dpaa_sec, \ - crypto/openssl, \ - event/\*, \ - mempool/dpaa, \ - net/af_packet, \ - net/bnx2x, \ - net/bonding, \ - net/ipn3ke, \ - net/liquidio, \ - net/pcap, \ - net/pfe, \ - net/sfc, \ - net/softnic, \ - net/thunderx, \ - raw/ifpga, \ - net/af_xdp - -DPDK_LIBS_DISABLED := acl, \ - bbdev, \ - bitratestats, \ - bpf, \ - cfgfile, \ - distributor, \ - efd, \ - fib, \ - flow_classify, \ - graph, \ - gro, \ - gso, \ - jobstats, \ - kni, \ - latencystats, \ - lpm, \ - member, \ - node, \ - pipeline, \ - port, \ - power, \ - rawdev, \ - rib, \ - table - -# Adjust disabled pmd and libs depending on user provided variables -ifeq ($(DPDK_MLX4_PMD), n) - DPDK_DRIVERS_DISABLED += ,net/mlx4 +else ifeq ($(MIDR_IMPLEMENTER),$(CPU_IMP_CAVIUM)) +############################################################################## +# Cavium ThunderX +############################################################################## +ifneq (,$(findstring $(MIDR_PARTNUM),$(CPU_PART_CAVIUM_THUNDERX) \ + $(CPU_PART_CAVIUM_THUNDERX_81XX) $(CPU_PART_CAVIUM_THUNDERX_83XX))) +DPDK_TARGET = arm64-thunderx-linuxapp-$(DPDK_CC) +DPDK_MACHINE = thunderx +DPDK_CACHE_LINE_SIZE := 128 +else +$(warning Unknown Cavium CPU) endif -ifeq ($(DPDK_MLX5_PMD), n) - DPDK_DRIVERS_DISABLED += ,net/mlx5 endif -ifeq ($(DPDK_MLX5_COMMON_PMD), n) - DPDK_DRIVERS_DISABLED += ,common/mlx5 + +# finish of assigning aarch64 variant specific options endif -ifeq ($(DPDK_TAP_PMD), n) - DPDK_DRIVERS_DISABLED += ,net/tap + +############################################################################## +# Unknown platform +############################################################################## +else +$(error Unknown platform) endif -ifeq ($(DPDK_FAILSAFE_PMD), n) - DPDK_DRIVERS_DISABLED += ,net/failsafe + +# compiler/linker custom arguments +ifeq ($(DPDK_CC),clang) +DPDK_CPU_CFLAGS := -fPIE -fPIC +else +DPDK_CPU_CFLAGS := -pie -fPIC endif -# Sanitize DPDK_DRIVERS_DISABLED and DPDK_LIBS_DISABLED -DPDK_DRIVERS_DISABLED := $(shell echo $(DPDK_DRIVERS_DISABLED) | tr -d '\\\t ') -DPDK_LIBS_DISABLED := $(shell echo $(DPDK_LIBS_DISABLED) | tr -d '\\\t ') - -HASH := \# -# post-meson-setup snippet to alter rte_build_config.h -define dpdk_config -if grep -q RTE_$(1) $(dpdk_src_dir)/config/rte_config.h ; then \ -sed -i -e 's/$(HASH)define RTE_$(1).*/$(HASH)define RTE_$(1) $(DPDK_$(1))/' \ - $(dpdk_src_dir)/config/rte_config.h; \ -elif grep -q RTE_$(1) $(dpdk_build_dir)/rte_build_config.h ; then \ -sed -i -e 's/$(HASH)define RTE_$(1).*/$(HASH)define RTE_$(1) $(DPDK_$(1))/' \ - $(dpdk_build_dir)/rte_build_config.h; \ -else \ -echo '$(HASH)define RTE_$(1) $(DPDK_$(1))' \ - >> $(dpdk_build_dir)/rte_build_config.h ; \ +ifeq ($(DPDK_DEBUG),n) +DPDK_EXTRA_CFLAGS := -g -mtune=$(DPDK_TUNE) +else +DPDK_EXTRA_CFLAGS := -g -O0 +endif + +# -Wimplicit-fallthrough was introduced starting from GCC 7, +# and it requires newer version of ccache. +# Disable fallthrough warning for old ccache version. +ifeq ($(DPDK_CC),gcc) +GCC_VER_V = "7.0.0" +CCACHE_VER_V = "3.4.1" +GCC_VER = $(shell gcc --version | grep ^gcc | sed 's/^.* //g') +CCACHE_VER = $(shell ccache --version | grep ^ccache | sed 's/^.* //g') +ifeq ($(shell expr "$(GCC_VER)" ">=" "$(GCC_VER_V)"),1) +ifeq ($(shell expr "$(CCACHE_VER)" "<" "$(CCACHE_VER_V)"),1) +DPDK_EXTRA_CFLAGS += -Wimplicit-fallthrough=0 +endif +endif +endif + +DPDK_EXTRA_CFLAGS += -I$(I)/include +DPDK_EXTRA_LDFLAGS += -L$(I)/lib + +# assemble DPDK make arguments +DPDK_MAKE_ARGS := -C $(DPDK_SOURCE) -j $(JOBS) \ + T=$(DPDK_TARGET) \ + RTE_CONFIG_TEMPLATE=../custom-config \ + EXTRA_CFLAGS="$(DPDK_EXTRA_CFLAGS)" \ + EXTRA_LDFLAGS="$(DPDK_EXTRA_LDFLAGS)" \ + CPU_CFLAGS="$(DPDK_CPU_CFLAGS)" \ + DESTDIR=$(I) \ + MAKE_PAUSE=n \ + $(DPDK_MAKE_EXTRA_ARGS) + +define set +@if grep -q CONFIG_$1 $@ ; \ + then sed -i -e 's/.*\(CONFIG_$1=\).*/\1$2/' $@ ; \ + else echo CONFIG_$1=$2 >> $@ ; \ fi endef -DPDK_MESON_ARGS = \ - --default-library static \ - --libdir lib \ - --prefix $(dpdk_install_dir) \ - -Dtests=false \ - "-Ddisable_drivers=$(DPDK_DRIVERS_DISABLED)" \ - "-Ddisable_libs=$(DPDK_LIBS_DISABLED)" \ - -Db_pie=true \ - -Dmachine=$(DPDK_MACHINE) \ - --buildtype=$(DPDK_BUILD_TYPE) - -define dpdk_config_cmds - cd $(dpdk_build_dir) && \ - rm -rf ../dpdk-meson-venv && \ - mkdir -p ../dpdk-meson-venv && \ - python3 -m venv ../dpdk-meson-venv && \ - source ../dpdk-meson-venv/bin/activate && \ - pip3 install meson==0.54 && \ - meson setup $(dpdk_src_dir) \ - $(dpdk_build_dir) \ - $(DPDK_MESON_ARGS) \ - | tee $(dpdk_config_log) && \ - deactivate && \ - echo "DPDK post meson configuration" && \ - echo "Altering rte_build_config.h" && \ - $(call dpdk_config,PKTMBUF_HEADROOM) -endef +$(B)/custom-config: $(B)/.dpdk-patch.ok Makefile + @echo --- generating custom config from $(DPDK_SOURCE)/config/defconfig_$(DPDK_TARGET) --- + @cpp -undef -ffreestanding -x assembler-with-cpp $(DPDK_SOURCE)/config/defconfig_$(DPDK_TARGET) $@ + $(call set,RTE_MACHINE,$(DPDK_MACHINE)) + @# modify options + $(call set,RTE_MAX_LCORE,256) + $(call set,RTE_PKTMBUF_HEADROOM,$(DPDK_PKTMBUF_HEADROOM)) + $(call set,RTE_CACHE_LINE_SIZE,$(DPDK_CACHE_LINE_SIZE)) + $(call set,RTE_BUILD_COMBINE_LIBS,y) + $(call set,RTE_PCI_CONFIG,y) + $(call set,RTE_PCI_EXTENDED_TAG,"on") + $(call set,RTE_PCI_MAX_READ_REQUEST_SIZE,4096) + $(call set,RTE_LIBRTE_PMD_BOND,n) + $(call set,RTE_LIBRTE_IP_FRAG,y) + $(call set,RTE_LIBRTE_PMD_QAT,y) + $(call set,RTE_LIBRTE_PMD_QAT_SYM,y) + $(call set,RTE_LIBRTE_PMD_AESNI_MB,$(AESNI)) + $(call set,RTE_LIBRTE_PMD_AESNI_GCM,$(AESNI)) + $(call set,RTE_LIBRTE_MLX4_PMD,$(DPDK_MLX4_PMD)) + $(call set,RTE_LIBRTE_MLX5_PMD,$(DPDK_MLX5_PMD)) + $(call set,RTE_LIBRTE_BNXT_PMD,y) + $(call set,RTE_LIBRTE_PMD_SOFTNIC,n) + $(call set,RTE_IBVERBS_LINK_DLOPEN,y) + $(call set,RTE_LIBRTE_PMD_TAP,$(DPDK_TAP_PMD)) + $(call set,RTE_LIBRTE_GSO,$(DPDK_TAP_PMD)) + $(call set,RTE_LIBRTE_PMD_FAILSAFE,$(DPDK_FAILSAFE_PMD)) + @# not needed + $(call set,RTE_ETHDEV_RXTX_CALLBACKS,n) + $(call set,RTE_LIBRTE_CFGFILE,n) + $(call set,RTE_LIBRTE_LPM,n) + $(call set,RTE_LIBRTE_ACL,n) + $(call set,RTE_LIBRTE_JOBSTATS,n) + $(call set,RTE_LIBRTE_EFD,n) + $(call set,RTE_LIBRTE_MEMBER,n) + $(call set,RTE_LIBRTE_BITRATE,n) + $(call set,RTE_LIBRTE_LATENCY_STATS,n) + $(call set,RTE_LIBRTE_POWER,n) + $(call set,RTE_LIBRTE_DISTRIBUTOR,n) + $(call set,RTE_LIBRTE_PORT,n) + $(call set,RTE_LIBRTE_TABLE,n) + $(call set,RTE_LIBRTE_PIPELINE,n) + $(call set,RTE_LIBRTE_PMD_SOFTNIC,n) + $(call set,RTE_LIBRTE_FLOW_CLASSIFY,n) + $(call set,RTE_LIBRTE_ACL,n) + $(call set,RTE_LIBRTE_GRO,n) + $(call set,RTE_LIBRTE_KNI,n) + $(call set,RTE_LIBRTE_BPF,n) + $(call set,RTE_LIBRTE_RAWDEV,n) + $(call set,RTE_LIBRTE_PMD_IFPGA_RAWDEV,n) + $(call set,RTE_LIBRTE_IPN3KE_PMD,n) + $(call set,RTE_LIBRTE_IFPGA_BUS,n) + $(call set,RTE_LIBRTE_BBDEV,n) + $(call set,RTE_LIBRTE_BBDEV_NULL,n) + $(call set,RTE_LIBRTE_GRAPH,n) + $(call set,RTE_LIBRTE_NODE,n) + $(call set,RTE_LIBRTE_FIB,n) + $(call set,RTE_LIBRTE_RIB,n) + $(call set,RTE_TEST_PMD,n) + $(call set,RTE_KNI_KMOD,n) + $(call set,RTE_EAL_IGB_UIO,n) + @# currently broken in 18.02 + $(call set,RTE_LIBRTE_DPAA_BUS,n) + $(call set,RTE_LIBRTE_DPAA_MEMPOOL,n) + $(call set,RTE_LIBRTE_DPAA_PMD,n) + $(call set,RTE_LIBRTE_PMD_DPAA_SEC,n) + $(call set,RTE_LIBRTE_PMD_DPAA_EVENTDEV,n) + @rm -f .dpdk-config.ok -define dpdk_build_cmds - cd $(dpdk_build_dir) && \ - source ../dpdk-meson-venv/bin/activate && \ - meson compile -C . | tee $(dpdk_build_log) && \ - deactivate -endef +DPDK_DOWNLOADS = $(CURDIR)/downloads/$(DPDK_TARBALL) -define dpdk_install_cmds - cd $(dpdk_build_dir) && \ - source ../dpdk-meson-venv/bin/activate && \ - meson install && \ - cd $(dpdk_install_dir)/lib && \ - echo "GROUP ( $$(ls librte*.a ) )" > libdpdk.a && \ - rm -rf librte*.so librte*.so.* dpdk/*/librte*.so dpdk/*/librte*.so.* && \ - deactivate && \ - rm -rf $(dpdk_build_dir)/../dpdk-meson-venv -endef +$(DPDK_DOWNLOADS): + mkdir -p downloads + @if [ -e $(DPDK_DOWNLOAD_DIR)/$(DPDK_TARBALL) ] ; \ + then cp $(DPDK_DOWNLOAD_DIR)/$(DPDK_TARBALL) $@ ; \ + else curl -o $@ -LO $(DPDK_TAR_URL) ; \ + fi + @rm -f $(B)/.dpdk-download.ok + +$(B)/.dpdk-download.ok: $(DPDK_DOWNLOADS) + @mkdir -p $(B) + @openssl md5 $< | cut -f 2 -d " " - > $(B)/$(DPDK_TARBALL).md5sum + @([ "$$(<$(B)/$(DPDK_TARBALL).md5sum)" = "$(DPDK_$(DPDK_VERSION)_TARBALL_MD5_CKSUM)" ] || \ + ( echo "Bad Checksum! Please remove $< and retry" && \ + rm $(B)/$(DPDK_TARBALL).md5sum && false )) + @touch $@ + +.PHONY: dpdk-download +dpdk-download: $(B)/.dpdk-download.ok + +$(B)/.dpdk-extract.ok: $(B)/.dpdk-download.ok + @echo --- extracting $(DPDK_TARBALL) --- + @tar --directory $(B) --extract --file $(DPDK_DOWNLOADS) + @touch $@ + +.PHONY: dpdk-extract +dpdk-extract: $(B)/.dpdk-extract.ok + +$(B)/.dpdk-patch.ok: $(B)/.dpdk-extract.ok +ifneq ($(wildcard $(CURDIR)/patches/dpdk_$(DPDK_VERSION)/*.patch),) + @echo --- patching --- + @for f in $(CURDIR)/patches/dpdk_$(DPDK_VERSION)/*.patch ; do \ + echo Applying patch: $$(basename $$f) ; \ + patch -p1 -d $(DPDK_SOURCE) < $$f ; \ + done +endif + @touch $@ + +.PHONY: dpdk-patch +dpdk-patch: $(B)/.dpdk-patch.ok + +$(B)/.dpdk-config.ok: $(B)/.dpdk-patch.ok $(B)/custom-config + @make $(DPDK_MAKE_ARGS) config + @touch $@ + +.PHONY: dpdk-config +dpdk-config: $(B)/.dpdk-config.ok + +$(B)/.dpdk-build.ok: dpdk-config $(DPDK_BUILD_DEPS) + @if [ ! -e $(B)/.dpdk-config.ok ] ; then echo 'Please run "make config" first' && false ; fi + @rm -f $(B)/.*.install.ok #deals with build-root/Makefile line 709 + @make $(DPDK_MAKE_ARGS) install + @touch $@ + +.PHONY: dpdk-build +dpdk-build: $(B)/.dpdk-build.ok -$(eval $(call package,dpdk)) +.PHONY: dpdk-install +dpdk-install: $(B)/.dpdk-build.ok diff --git a/build/external/patches/dpdk_20.08/0002-build-system-selective-libs.patch b/build/external/patches/dpdk_20.08/0002-build-system-selective-libs.patch deleted file mode 100644 index 62094846a3e..00000000000 --- a/build/external/patches/dpdk_20.08/0002-build-system-selective-libs.patch +++ /dev/null @@ -1,88 +0,0 @@ -diff --git a/app/meson.build b/app/meson.build -index eb74f215a..93affefa3 100644 ---- a/app/meson.build -+++ b/app/meson.build -@@ -42,7 +42,17 @@ foreach app:apps - - subdir(name) - -- if build -+ foreach d:deps -+ if dpdk_libs_disabled.contains(d) -+ build = false -+ reason = 'missing dependency, "@0@" '.format (d) -+ endif -+ endforeach -+ -+ if not build -+ dpdk_apps_disabled += name -+ set_variable(name.underscorify() + '_disable_reason', reason) -+ else - dep_objs = [] - foreach d:deps - dep_objs += get_variable(get_option('default_library') -diff --git a/lib/meson.build b/lib/meson.build -index 3852c0156..76996544d 100644 ---- a/lib/meson.build -+++ b/lib/meson.build -@@ -44,6 +44,8 @@ if is_windows - ] # only supported libraries for windows - endif - -+disabled_libs = get_option('disable_libs').split(',') -+ - default_cflags = machine_args - default_cflags += ['-DALLOW_EXPERIMENTAL_API'] - default_cflags += ['-DALLOW_INTERNAL_API'] -@@ -78,6 +80,11 @@ foreach l:libraries - dir_name = 'librte_' + l - subdir(dir_name) - -+ if disabled_libs.contains(l) -+ build = false -+ reason = 'Explicitly disabled via build config' -+ endif -+ - if build - shared_deps = ext_deps - static_deps = ext_deps -diff --git a/meson.build b/meson.build -index 61d9a4f5f..cf04f0e0e 100644 ---- a/meson.build -+++ b/meson.build -@@ -21,6 +21,7 @@ dpdk_drivers = [] - dpdk_extra_ldflags = [] - dpdk_libs_disabled = [] - dpdk_drvs_disabled = [] -+dpdk_apps_disabled = [] - abi_version_file = files('ABI_VERSION') - - if host_machine.cpu_family().startswith('x86') -@@ -106,6 +107,14 @@ foreach class:dpdk_driver_classes - endforeach - message(output_message + '\n') - -+output_message = '\n===============\nApplications Disabled\n===============\n' -+foreach app:dpdk_apps_disabled -+ reason = get_variable(app.underscorify() + '_disable_reason') -+ output_message += app + ':\t' + reason + '\n\t' -+endforeach -+ -+message(output_message + '\n') -+ - output_message = '\n=================\nContent Skipped\n=================\n' - output_message += '\nlibs:\n\t' - foreach lib:dpdk_libs_disabled -diff --git a/meson_options.txt b/meson_options.txt -index 9bf18ab6b..d1aa46b8d 100644 ---- a/meson_options.txt -+++ b/meson_options.txt -@@ -4,6 +4,8 @@ option('armv8_crypto_dir', type: 'string', value: '', - description: 'path to the armv8_crypto library installation directory') - option('disable_drivers', type: 'string', value: '', - description: 'Comma-separated list of drivers to explicitly disable.') -+option('disable_libs', type: 'string', value: '', -+ description: 'Comma-separated list of libs to explicitly disable.') - option('drivers_install_subdir', type: 'string', value: 'dpdk/pmds-<VERSION>', - description: 'Subdirectory of libdir where to install PMDs. Defaults to using a versioned subdirectory.') - option('enable_docs', type: 'boolean', value: false, |