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#   SPDX-License-Identifier: BSD-3-Clause
#   Copyright 2012 6WIND S.A.
#   Copyright 2012 Mellanox Technologies, Ltd

include $(RTE_SDK)/mk/rte.vars.mk

# Library name.
LIB = librte_pmd_mlx4.a
LIB_GLUE = $(LIB_GLUE_BASE).$(LIB_GLUE_VERSION)
LIB_GLUE_BASE = librte_pmd_mlx4_glue.so
LIB_GLUE_VERSION = 18.02.0

# Sources.
SRCS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += mlx4.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += mlx4_ethdev.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += mlx4_flow.c
ifneq ($(CONFIG_RTE_IBVERBS_LINK_DLOPEN),y)
SRCS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += mlx4_glue.c
endif
SRCS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += mlx4_intr.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += mlx4_mp.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += mlx4_mr.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += mlx4_rxq.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += mlx4_rxtx.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += mlx4_txq.c
SRCS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += mlx4_utils.c

ifeq ($(CONFIG_RTE_IBVERBS_LINK_DLOPEN),y)
INSTALL-$(CONFIG_RTE_LIBRTE_MLX4_PMD)-lib += $(LIB_GLUE)
endif

# Basic CFLAGS.
CFLAGS += -O3
CFLAGS += -std=c11 -Wall -Wextra
CFLAGS += -g
CFLAGS += -I.
CFLAGS += -D_BSD_SOURCE
CFLAGS += -D_DEFAULT_SOURCE
CFLAGS += -D_XOPEN_SOURCE=600
CFLAGS += $(WERROR_FLAGS)
CFLAGS += -DALLOW_EXPERIMENTAL_API
ifeq ($(CONFIG_RTE_IBVERBS_LINK_DLOPEN),y)
CFLAGS += -DMLX4_GLUE='"$(LIB_GLUE)"'
CFLAGS += -DMLX4_GLUE_VERSION='"$(LIB_GLUE_VERSION)"'
CFLAGS_mlx4_glue.o += -fPIC
LDLIBS += -ldl
else ifeq ($(CONFIG_RTE_IBVERBS_LINK_STATIC),y)
LDLIBS += $(shell $(RTE_SDK)/buildtools/options-ibverbs-static.sh)
else
LDLIBS += -libverbs -lmlx4
endif
LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool -lrte_ring
LDLIBS += -lrte_ethdev -lrte_net -lrte_kvargs
LDLIBS += -lrte_bus_pci

# A few warnings cannot be avoided in external headers.
CFLAGS += -Wno-error=cast-qual

EXPORT_MAP := rte_pmd_mlx4_version.map
LIBABIVER := 1

# DEBUG which is usually provided on the command-line may enable
# CONFIG_RTE_LIBRTE_MLX4_DEBUG.
ifeq ($(DEBUG),1)
CONFIG_RTE_LIBRTE_MLX4_DEBUG := y
endif

# User-defined CFLAGS.
ifeq ($(CONFIG_RTE_LIBRTE_MLX4_DEBUG),y)
CFLAGS += -pedantic -UNDEBUG -DPEDANTIC
else
CFLAGS += -DNDEBUG -UPEDANTIC
endif

include $(RTE_SDK)/mk/rte.lib.mk

# Generate and clean-up mlx4_autoconf.h.

export CC CFLAGS CPPFLAGS EXTRA_CFLAGS EXTRA_CPPFLAGS
export AUTO_CONFIG_CFLAGS = -Wno-error

ifndef V
AUTOCONF_OUTPUT := >/dev/null
endif

mlx4_autoconf.h.new: FORCE

mlx4_autoconf.h.new: $(RTE_SDK)/buildtools/auto-config-h.sh
	$Q $(RM) -f -- '$@'
	$Q : > '$@'
	$Q sh -- '$<' '$@' \
		HAVE_IBV_MLX4_BUF_ALLOCATORS \
		infiniband/mlx4dv.h \
		enum MLX4DV_SET_CTX_ATTR_BUF_ALLOCATORS \
		$(AUTOCONF_OUTPUT)
	$Q sh -- '$<' '$@' \
		HAVE_IBV_MLX4_UAR_MMAP_OFFSET \
		infiniband/mlx4dv.h \
		enum MLX4DV_QP_MASK_UAR_MMAP_OFFSET \
		$(AUTOCONF_OUTPUT)
	$Q sh -- '$<' '$@' \
		HAVE_IBV_MLX4_WQE_LSO_SEG \
		infiniband/mlx4dv.h \
		type 'struct mlx4_wqe_lso_seg' \
		$(AUTOCONF_OUTPUT)

# Create mlx4_autoconf.h or update it in case it differs from the new one.

mlx4_autoconf.h: mlx4_autoconf.h.new
	$Q [ -f '$@' ] && \
		cmp '$<' '$@' $(AUTOCONF_OUTPUT) || \
		mv '$<' '$@'

$(SRCS-$(CONFIG_RTE_LIBRTE_MLX4_PMD):.c=.o): mlx4_autoconf.h

# Generate dependency plug-in for rdma-core when the PMD must not be linked
# directly, so that applications do not inherit this dependency.

ifeq ($(CONFIG_RTE_IBVERBS_LINK_DLOPEN),y)

$(LIB): $(LIB_GLUE)

ifeq ($(LINK_USING_CC),1)
GLUE_LDFLAGS := $(call linkerprefix,$(LDFLAGS))
else
GLUE_LDFLAGS := $(LDFLAGS)
endif
$(LIB_GLUE): mlx4_glue.o
	$Q $(LD) $(GLUE_LDFLAGS) $(EXTRA_LDFLAGS) \
		-Wl,-h,$(LIB_GLUE) \
		-shared -o $@ $< -libverbs -lmlx4

mlx4_glue.o: mlx4_autoconf.h

endif

clean_mlx4: FORCE
	$Q rm -f -- mlx4_autoconf.h mlx4_autoconf.h.new
	$Q rm -f -- mlx4_glue.o $(LIB_GLUE_BASE)*

clean: clean_mlx4