NetBSD/sys/rump
mrg f2b04ca083 implement 32-bit compat support for raidframe.
convert several raidframe ioctls to be bitsize idempotent so that
they work the same in 32 and 64 bit worlds, allowing netbsd32 to
configure and query raid properly.  remove useless 'row' in a few
places.  add COMPAT_80 and put the old ioctls there.

raidframeio.h:
  RAIDFRAME_TEST_ACC
  - remove, unused
  RAIDFRAME_GET_COMPONENT_LABEL
  - convert to label not pointer to label
  RAIDFRAME_CHECK_RECON_STATUS_EXT
  RAIDFRAME_CHECK_PARITYREWRITE_STATUS_EXT
  RAIDFRAME_CHECK_COPYBACK_STATUS_EXT
  - convert to progress info not pointer to info
  RAIDFRAME_GET_INFO
  - version entirely.
raidframevar.h:
  - rf_recon_req{} has row, flags and raidPtr removed (they're
    not a useful part of this interface.)
  - RF_Config_s{} and RF_DeviceConfig_s{} have numRow/rows removed.
  - RF_RaidDisk_s{} is re-ordered slightly to fix alignment
    padding - the actual data was already OK.
  - InstallSpareTable() loses row argument

rf_compat32.c has code for RF_Config_s{} in 32 bit mode, used
by RAIDFRAME_CONFIGURE and RAIDFRAME_GET_INFO32.

rf_compat80.c has code for rf_recon_req{}, RF_RaidDisk_s{} and
RF_DeviceConfig_s{} to handle RAIDFRAME_FAIL_DISK,
RAIDFRAME_GET_COMPONENT_LABEL, RAIDFRAME_CHECK_RECON_STATUS_EXT,
RAIDFRAME_CHECK_PARITYREWRITE_STATUS_EXT,
RAIDFRAME_CHECK_COPYBACK_STATUS_EXT, RAIDFRAME_GET_INFO.

move several of the per-ioctl code blocks into separate functions.

add rf_recon_req_internal{} to replace old usage of global
rf_recon_req{} that had unused void * in the structure, ruining
it's 32/64 bit ABI.

add missing case for RAIDFRAME_GET_INFO50.

adjust raid tests to use the new .conf format, and add a case to
test the old method as well.

raidctl:
deal with lack of 'row' members in a couple of places.
fail request no longer takes row.
handle "START array" sections with just "numCol numSpare", ie
no "numRow" specified.  for now, generate old-style configuration
but update raidctl.8 to specify the new style (keeping reference
to the old style.)

note that: RF_ComponentLabel_s::{row,num_rows} and
RF_SingleComponent_s::row are obsolete but not removed yet.
2018-01-18 00:32:48 +00:00
..
dev implement 32-bit compat support for raidframe. 2018-01-18 00:32:48 +00:00
fs Disable a couple of warnings until further investigation. 2017-01-11 12:19:43 +00:00
include Revert vadvise(2) removal 2018-01-06 16:41:23 +00:00
kern Fail, don't panic, on bad dirents from file system. 2017-07-28 15:34:06 +00:00
librump Don't start callouts for domains before attaching domains on rump kernels 2018-01-10 02:50:26 +00:00
net ipsec(4) interface supports rump now. 2018-01-10 11:02:41 +00:00
share Fix typo: s/analoguous/analogous/ 2017-06-04 08:53:38 +00:00
ldscript_sun.rump
ldscript.rump
linksyms_sun.c
listsrcdirs
Makefile
Makefile.rump implement 32-bit compat support for raidframe. 2018-01-18 00:32:48 +00:00
makerumpsyscalls.sh
README.compileopts
README.dirs
rump.sysmap
sunldgen.sh
TODO

	$NetBSD: README.dirs,v 1.12 2013/01/08 13:12:26 pooka Exp $


The following is a quick rundown of the current directory structure.
First, components in the kernel namespace, i.e. compiled with -D_KERNEL

sys/rump/librump - rump kernel base and factions
  /rumpkern	- kernel core, e.g. syscall, interrupt and lock support

  /rumpdev	- device support, e.g. autoconf subsystem
  /rumpnet	- networking support and sockets layer
  /rumpvfs	- file system support

sys/rump/include
  /machine - used for architectures where the rump kernel ABI is not yet the
	     same as the kernel module ABI.  will eventually disappear
	     completely
  /rump    - kernel headers installed to userspace

sys/rump/dev - device components, e.g. audio, raidframe, usb drivers

sys/rump/fs - file system components
  /lib/lib${fs}  - kernel file system code

sys/rump/net - networking components
  /lib/libnet	  - subroutines from sys/net, e.g. route and if_ethersubr
  /lib/libnetinet - TCP/IP
  /lib/libvirtif  - a virtual interface which uses host tap(4) to shovel
		    packets.  This is used by netinet and if_ethersubr.
  /lib/libshmif   - a virtual interface which uses a memory mapped file
		    as an ethernet bus.  works completely unprivileged.
  /lib/libsockin  - implements PF_INET using host kernel sockets.  This is
		    mutually exclusive with net, netinet and virtif.



The rest are out-of-kernel components (i.e. no -D_KERNEL).

hypercall interface:
src/lib/librumpuser
  The "rumpuser" hypercall interfaces are used by a rump kernel to
  access host resources.

remote client interface:
src/lib/librumpclient
  The rumpclient library provides remote access to rump kernel servers.

system call hijacking:
src/lib/librumphijack
  The rumphijack library allows intercepting system calls and redirecting
  them to a rump kernel server instead of the host kernel.  In other
  words, it allows existing binaries to request indicated services from
  a rump kernel instead of from the host kernel.

Users:
src/lib
  /libp2k  - puffs-to-vfs adaption layer, userspace namespace
  /libukfs - user kernel file system, a library to access file system
	     images (or devices) directly in userspace without going
	     through a system call and puffs.  It provides a slightly
	     higher interface than syscalls.

src/usr.sbin/puffs
  rump_$fs - userspace file system daemons using the kernel fs code

src/share/examples/rump
  Various examples detailing use of rump kernels in different scenarios.
  These are provided source-only.