Olivier Matz feb9f680cd mk: optimize directory dependencies
Before this patch, the management of dependencies between directories
had several issues:

- the generation of .depdirs, done at configuration is slow: it can take
  more than one minute on some slow targets (usually ~10s on a standard
  PC without -j).

- for instance, it is possible to express a dependency like:
  - app/foo depends on lib/librte_foo
  - and lib/librte_foo depends on app/bar
  But this won't work because the directories are traversed with a
  depth-first algorithm, so we have to choose between doing 'app' before
  or after 'lib'.

- the script depdirs-rule.sh is too complex.

- we cannot use "make -d" for debug, because the output of make is used for
  the generation of .depdirs.

This patch moves the DEPDIRS-* variables in the upper Makefile, making
the dependencies much easier to calculate. A DEPDIRS variable is still
used to process library dependencies in LDLIBS.

After this commit, "make config" is almost immediate.

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Tested-by: Robin Jarry <robin.jarry@6wind.com>
Tested-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
2017-03-27 23:28:43 +02:00

147 lines
4.7 KiB
Makefile

# BSD LICENSE
#
# Copyright 2015 6WIND S.A.
# Copyright 2015 Mellanox.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of 6WIND S.A. nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
include $(RTE_SDK)/mk/rte.vars.mk
# Library name.
LIB = librte_pmd_mlx5.a
# Sources.
SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_rxq.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_txq.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_rxtx.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_trigger.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_ethdev.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_mac.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_rxmode.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_vlan.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_stats.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_rss.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_fdir.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_mr.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_flow.c
# Basic CFLAGS.
CFLAGS += -O3
CFLAGS += -std=gnu99 -Wall -Wextra
CFLAGS += -g
CFLAGS += -I.
CFLAGS += -D_BSD_SOURCE
CFLAGS += -D_DEFAULT_SOURCE
CFLAGS += -D_XOPEN_SOURCE=600
CFLAGS += $(WERROR_FLAGS)
CFLAGS += -Wno-strict-prototypes
LDLIBS += -libverbs
# A few warnings cannot be avoided in external headers.
CFLAGS += -Wno-error=cast-qual
EXPORT_MAP := rte_pmd_mlx5_version.map
LIBABIVER := 1
# DEBUG which is usually provided on the command-line may enable
# CONFIG_RTE_LIBRTE_MLX5_DEBUG.
ifeq ($(DEBUG),1)
CONFIG_RTE_LIBRTE_MLX5_DEBUG := y
endif
# User-defined CFLAGS.
ifeq ($(CONFIG_RTE_LIBRTE_MLX5_DEBUG),y)
CFLAGS += -pedantic -UNDEBUG -DPEDANTIC
else
CFLAGS += -DNDEBUG -UPEDANTIC
endif
ifdef CONFIG_RTE_LIBRTE_MLX5_TX_MP_CACHE
CFLAGS += -DMLX5_PMD_TX_MP_CACHE=$(CONFIG_RTE_LIBRTE_MLX5_TX_MP_CACHE)
endif
include $(RTE_SDK)/mk/rte.lib.mk
# Generate and clean-up mlx5_autoconf.h.
export CC CFLAGS CPPFLAGS EXTRA_CFLAGS EXTRA_CPPFLAGS
export AUTO_CONFIG_CFLAGS = -Wno-error
ifndef V
AUTOCONF_OUTPUT := >/dev/null
endif
mlx5_autoconf.h.new: FORCE
mlx5_autoconf.h.new: $(RTE_SDK)/buildtools/auto-config-h.sh
$Q $(RM) -f -- '$@'
$Q sh -- '$<' '$@' \
HAVE_VERBS_IBV_EXP_CQ_COMPRESSED_CQE \
infiniband/verbs_exp.h \
enum IBV_EXP_CQ_COMPRESSED_CQE \
$(AUTOCONF_OUTPUT)
$Q sh -- '$<' '$@' \
HAVE_VERBS_MLX5_ETH_VLAN_INLINE_HEADER_SIZE \
infiniband/mlx5_hw.h \
enum MLX5_ETH_VLAN_INLINE_HEADER_SIZE \
$(AUTOCONF_OUTPUT)
$Q sh -- '$<' '$@' \
HAVE_VERBS_MLX5_OPCODE_TSO \
infiniband/mlx5_hw.h \
enum MLX5_OPCODE_TSO \
$(AUTOCONF_OUTPUT)
$Q sh -- '$<' '$@' \
HAVE_ETHTOOL_LINK_MODE_25G \
/usr/include/linux/ethtool.h \
enum ETHTOOL_LINK_MODE_25000baseCR_Full_BIT \
$(AUTOCONF_OUTPUT)
$Q sh -- '$<' '$@' \
HAVE_ETHTOOL_LINK_MODE_50G \
/usr/include/linux/ethtool.h \
enum ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT \
$(AUTOCONF_OUTPUT)
$Q sh -- '$<' '$@' \
HAVE_ETHTOOL_LINK_MODE_100G \
/usr/include/linux/ethtool.h \
enum ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT \
$(AUTOCONF_OUTPUT)
# Create mlx5_autoconf.h or update it in case it differs from the new one.
mlx5_autoconf.h: mlx5_autoconf.h.new
$Q [ -f '$@' ] && \
cmp '$<' '$@' $(AUTOCONF_OUTPUT) || \
mv '$<' '$@'
$(SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD):.c=.o): mlx5_autoconf.h
clean_mlx5: FORCE
$Q rm -f -- mlx5_autoconf.h mlx5_autoconf.h.new
clean: clean_mlx5