cvs commit: src/sys/compat/ndis hal_var.h kern_ndis.c ndis_var.h ntoskrnl_var.h pe_var.h subr_hal.c subr_ndis.c subr_ntoskrnl.c src/usr.sbin/ndiscvt ndiscvt.8 ndiscvt.c

[Bill Paul]

wpaul       2004-08-01 20:04:31 UTC

  FreeBSD src repository

  Modified files:
    sys/compat/ndis      hal_var.h kern_ndis.c ndis_var.h 
                         ntoskrnl_var.h pe_var.h subr_hal.c 
                         subr_ndis.c subr_ntoskrnl.c 
    usr.sbin/ndiscvt     ndiscvt.8 ndiscvt.c 
  Log:
  Big mess 'o changes:
  
  - Give ndiscvt(8) the ability to process a .SYS file directly into
    a .o file so that we don't have to emit big messy char arrays into
    the ndis_driver_data.h file. This behavior is currently optional, but
    may become the default some day.
  
  - Give ndiscvt(8) the ability to turn arbitrary files into .ko files
    so that they can be pre-loaded or kldloaded. (Both this and the
    previous change involve using objcopy(1)).
  
  - Give NdisOpenFile() the ability to 'read' files out of kernel memory
    that have been kldloaded or pre-loaded, and disallow the use of
    the normal vn_open() file opening method during bootstrap (when no
    filesystems have been mounted yet). Some people have reported that
    kldloading if_ndis.ko works fine when the system is running multiuser
    but causes a panic when the modile is pre-loaded by /boot/loader. This
    happens with drivers that need to use NdisOpenFile() to access
    external files (i.e. firmware images). NdisOpenFile() won't work
    during kernel bootstrapping because no filesystems have been mounted.
    To get around this, you can now do the following:
  
          o Say you have a firmware file called firmware.img
          o Do: ndiscvt -f firmware.img -- this creates firmware.img.ko
          o Put the firmware.img.ko in /boot/kernel
          o add firmware.img_load="YES" in /boot/loader.conf
          o add if_ndis_load="YES" and ndis_load="YES" as well
  
    Now the loader will suck the additional file into memory as a .ko. The
    phony .ko has two symbols in it: filename_start and filename_end, which
    are generated by objcopy(1). ndis_open_file() will traverse each module
    in the module list looking for these symbols and, if it finds them, it'll
    use them to generate the file mapping address and length values that
    the caller of NdisOpenFile() wants.
  
    As a bonus, this will even work if the file has been statically linked
    into the kernel itself, since the "kernel" module is searched too.
    (ndiscvt(8) will generate both filename.o and filename.ko for you).
  
  - Modify the mechanism used to provide make-pretend FASTCALL support.
    Rather than using inline assembly to yank the first two arguments
    out of %ecx and %edx, we now use the __regparm__(3) attribute (and
    the __stdcall__ attribute) and use some macro magic to re-order
    the arguments and provide dummy arguments as needed so that the
    arguments passed in registers end up in the right place. Change
    taken from DragonflyBSD version of the NDISulator.
  
  Revision  Changes    Path
  1.4       +4 -4      src/sys/compat/ndis/hal_var.h
  1.58      +23 -0     src/sys/compat/ndis/kern_ndis.c
  1.28      +5 -0      src/sys/compat/ndis/ndis_var.h
  1.16      +2 -2      src/sys/compat/ndis/ntoskrnl_var.h
  1.8       +25 -16    src/sys/compat/ndis/pe_var.h
  1.13      +9 -24     src/sys/compat/ndis/subr_hal.c
  1.63      +130 -9    src/sys/compat/ndis/subr_ndis.c
  1.41      +48 -91    src/sys/compat/ndis/subr_ntoskrnl.c
  1.5       +121 -1    src/usr.sbin/ndiscvt/ndiscvt.8
  1.8       +143 -10   src/usr.sbin/ndiscvt/ndiscvt.c