Skip to Content.
Sympa Menu

baslinux - Re: [BL] ethernet problem

baslinux AT lists.ibiblio.org

Subject: Baslinux mailing list

List archive

Chronological Thread  
  • From: Sindi Keesan <keesan AT iamjlamb.com>
  • To: baslinux AT lists.ibiblio.org
  • Subject: Re: [BL] ethernet problem
  • Date: Sun, 13 Jun 2004 19:05:49 -0400 (EDT)

On Sun, 13 Jun 2004, Sindi Keesan wrote:
Regarding how to compile your own ethernet module:
>
>
> > > www.scyld.com/network.html has a lot of useful information on ethernet
> > > cards and drivers. This one has a serious bug which limits transmit
> > > list


> > > ftp.scyld.com/pub/network

In addition to source code, I discovered that scyld also supplies a 5K
Makefile, which I will read for clues as to what to do next. I probably
need to modify it to specify locations of certain files on my computer.
Parts of it are specific to certain types of Linux, or certain kernels or
drivers.

I have attached the Makefile. I welcome any helpful suggestions as to
just what to do with it.
#!/usr/bin/make all
# Makefile for building updated Linux PCI network device drivers as modules.
# Distributed for use with the Scyld driver set.
#
# By default this Makefile tries to build and install for the running kernel.
# You may override this with command line parameters
# make KERN_INCLUDE=/lib/modules/2.4.20-12smp/build/include
# make KERNVER=2.4.20-12smp
#
# You may specify a kernel with the following variables.
# KERN_INCLUDE The include directory for the target kernel.
# MODULEDIR The directory where netdriver modules should be installed.
# PCMCIA The include file for the PCMCIA subsystem.
#
# Setting KERNVER may allow this Makefile to guess the above.
# $id$

# PREFIX may be set by the RPM build to set the effective root.
PREFIX=
# Set KERNVER on the command line to build modules for a kernel other than
# the version that is currently running.

PCMCIA?=/usr/src/pcmcia/include
CC?=gcc
CFLAGS=-DMODULE -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -I$(KERN_INCLUDE)
$(EXTRACFLAGS)

# We go to great effort to work with the myriad ways that distributions
# have gotten confused about where kernel include files should be put.
# There have been over twenty broken "solutions", which is far more painful
# to deal with than just leaving the problem alone.

# The path for kernel "include" header files is
# /lib/modules/$(KERNVER)/build/include/
# /usr/src/linux-$(KERNVER)/include
# /usr/src/linux/include
# The path for destination modules is
# /lib/modules/$(KERNVER)/kernel/drivers/
# /lib/modules/$(KERNVER)/
# however PCMCIA modules use the latter directory in Red Hat.

define newline


endef
ifndef KERNVER
KERNVER=$(shell uname -r)
$(warning No kernel version has been specified.$(newline)\
Assuming $(KERNVER).$(newline)\
Set the KERNVER variable to specify a different kernel.)
endif

# Do not use PREFIX for include files or when checking if a path exists!
ifndef KERN_INCLUDE
KERN_INCLUDE=$(firstword $(wildcard /lib/modules/$(KERNVER)/build/include/
/usr/src/linux-$(KERNVER)/include /usr/src/linux/include))
else
$(warning Using $(KERN_INCLUDE) for the kernel header files.)
endif

ifeq "$(KERN_INCLUDE)" ""
$(warning The kernel header files do not appear to be installed on)
$(warning this machine. You likely need to install the kernel source)
$(warning or the kernel-headers package.)
endif

ifneq "$(wildcard $(KERN_INCLUDE)/pcmcia/driver_ops.h)" ""
PCMCIA=$(KERN_INCLUDE)
endif

MODULEDIR=$(PREFIX)$(firstword $(wildcard
/lib/modules/$(KERNVER)/kernel/drivers/ /lib/modules/$(KERNVER)/))


# Some architectures require magic gcc flags for kernel compiles.
# First canoicalize the name: *86 becomes i386.
ARCH:=$(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ -e
s/arm.*/arm/ -e s/sa110/arm/)
ifneq "$(wildcard $(KERN_INCLUDE)/../make.inc)" ""
include $(KERN_INCLUDE)/../make.inc
CFLAGS+=KERN_CFLAGS
else
ifeq ($(ARCH),i386)
CFLAGS+=-pipe -fno-strength-reduce
endif
ifeq ($(ARCH),alpha)
CFLAGS+=-pipe -mno-fp-regs -ffixed-8 -mcpu=ev5
endif
ifeq ($(ARCH),x86_64)
CFLAGS+=-pipe -fno-strength-reduce -fno-strict-aliasing
-fomit-frame-pointer -mno-red-zone -mcmodel=kernel -fno-reorder-blocks
-finline-limit=2000 -fno-strength-reduce -nostdinc -iwithprefix include
endif
endif

# Work around Red Hat 7.0 GCC version lossage.
ifneq ($(wildcard /usr/bin/kgcc),)
CC=kgcc
endif

# If the modversion.h file exists we should pass a flag.
# Most of my drivers have been updated to not need this, but not the other
# kernel source files.
MODVER_H = $(KERN_INCLUDE)/linux/modversions.h
ifneq ($(wildcard $(MODVER_H)),"")
CFLAGS += -DMODVERSIONS
endif

DRV_OFILES = 3c59x.o eepro100.o epic100.o hamachi.o intel-gige.o \
myson803.o natsemi.o ns820.o rtl8139.o starfire.o \
sundance.o tulip.o via-rhine.o winbond-840.o yellowfin.o

# We can only build the ne2k-pci. driver if we have a 8390.h file available.
ifneq (,$(filter 2.4.%, $(KERNVER)))
# This is a 2.4 kernel, do not build ne2k-pci.o
else
# This is a 2.2 or earlier kernel, check that we have 8390.h
ifneq (,$(wildcard $(KERN_INCLUDE)/../drivers/net/8390.h))
DRV_OFILES += ne2k-pci.o
PATH_8390H=$(KERN_INCLUDE)/../drivers/net/
endif
endif

OFILES= $(DRV_OFILES) pci-scan.o

ifeq ($(wildcard $(PCMCIA)/pcmcia/driver_ops.h),"")
$(warning The PCMCIA header files could not be found.$(newline)\
No CardBus support will be built.)
else
OFILES += cb_shim.o
CARDBUS= 3c575_cb.o epic_cb.o tulip_cb.o realtek_cb.o
CARDBUS-FLAGS = -DCARDBUS -I$(KERN_INCLUDE) -I$(PCMCIA) -I/usr/include
CB_SHIM = cb_shim.o
endif

all: pci-skeleton.o pci-scan.o $(DRV_OFILES) $(CB_SHIM)
tar: netdrivers.tgz

$(OFILES) pci-scan.o pci-skeleton.o: pci-scan.h kern_compat.h

pci-scan.o: pci-scan.h
# We need to pick up 8390.h
ne2k-pci.o: ne2k-pci.c $(PATH_8390H)/8390.h
$(CC) $(CPPFLAGS) $(CFLAGS) -I$(PATH_8390H)/ -c $<

cb_shim.o: cb_shim.c
$(CC) $(CARDBUS-FLAGS) $(CFLAGS) -c $< -o $@

install: $(OFILES)
mkdir -p $(MODULEDIR)/net/
install -m 444 pci-scan.o $(DRV_OFILES) $(MODULEDIR)/net/
@if [ -r cb_shim.o ]; then mkdir -p $(MODULEDIR)/pcmcia/; install -m
444 cb_shim.o $(MODULEDIR)/pcmcia/; fi
@if [ "$(PREFIX)" = "" ]; then /sbin/depmod -a $(KERNVER);\
else echo " *** Run '/sbin/depmod -a' to update the module
database.";\
fi

netdrivers.tgz: Makefile *.[ch] netdrivers.spec
tar cfvz $@ $^

rpm: netdrivers.tgz
rpm -ta $^

# These are old-style CardBus drivers that don't need pci-scan and cb_shim.
cardbus: $(CARDBUS)
3c575_cb.o: 3c59x.c
$(CC) $(CARDBUS-FLAGS) $(CFLAGS) -c $< -o $@
epic_cb.o: epic100.c
$(CC) $(CARDBUS-FLAGS) $(CFLAGS) -c $< -o $@
realtek_cb.o: rtl8139.c
$(CC) $(CARDBUS-FLAGS) $(CFLAGS) -c $< -o $@
tulip_cb.o: tulip.c
$(CC) $(CARDBUS-FLAGS) $(CFLAGS) -c $< -o $@

.DELETE_ON_ERROR: ChangeLog
ChangeLog: Makefile *.[ch] netdrivers.spec
rcs2log -h scyld.com -u "`echo -en "becker\tDonald
Becker\tbecker AT scyld.com"`" -i 5 | sed -e 's@/home/repository/@@g' -e 's@^
\* netdrivers/@ \* netdrivers/@g' > $@

.PHONEY: all clean install cardbus tar

clean:
-rm -f *.o netdrivers.tgz ChangeLog



Archive powered by MHonArc 2.6.24.

Top of Page