Commit Graph

668 Commits

Author SHA1 Message Date
Peter Oberparleiter
dbd8ae6306 [S390] sclp: invalid handling of temporary 'not operational' status
Requests are aborted when the sclp interface reports 'not operational'
even though they may still be active at the sclp, leading to concurrent
writes to request memory by both the kernel and the sclp interface.
Do not abort requests for which the sclp interface reports not
operational status during request retry.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>5A
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:17:00 +01:00
Cornelia Huck
32c5b05092 [S390] cio: Remove check for ssd in chpids_show().
Since ssd_info is now available before the subchannel is registered,
we don't need to check whether it is available.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:16:56 +01:00
Akinobu Mita
b0f1779a87 [S390] Check the return value of kthread_run().
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:16:49 +01:00
Heiko Carstens
2b67fc4606 [S390] Get rid of a lot of sparse warnings.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:16:47 +01:00
Linus Torvalds
97bee8e25d Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6:
  pcnet_cs : add new id
  chelsio: error path fix
  s390: iucv Kconfig help description changes
  s390: qeth driver fixes: atomic context fixups
  s390: qeth driver fixes: packet socket
  s390: qeth driver fixes: VLAN hdr, perf stats
  forcedeth: sideband management fix
  Revert "[PATCH] e1000: disable TSO on the 82544 with slab debugging"
  qeth: fix uaccess handling and get rid of unused variable
  qla3xxx: Add delay to NVRAM register access.
  qla3xxx: Remove NETIF_F_LLTX from driver features.
  ixgb: Write RA register high word first, increment version
  ixgb: Maybe stop TX if not enough free descriptors
  ixgb: Fix early TSO completion
  [PATCH] ipw2100: Fix dropping fragmented small packet problem
  [PATCH] ieee80211: WLAN_GET_SEQ_SEQ fix (select correct region)
2007-01-09 09:36:06 -08:00
Christian Borntraeger
bf3dbdcd0b [S390] locking problem with __cpcmd.
Changeset 740b5706b9 moved the protecting
spinlock from __cpcmd to cpcmd. Therefore vmcp can no longer use __cpcmd,
instead we have to use cpcmd.

Signed-off-by: Christian Borntraeger <cborntra@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-01-09 10:19:03 +01:00
Heiko Carstens
6faf4444f2 [S390] cio: use barrier() in stsch_reset.
Use barrier() in stsch_reset() instead of duplicating the stsch()
inline assembly and adding "memory" to the clobberlist.
Pointed out by Chuck Ebbert.

Real fix would be to add a fixup section to the stsch() and extend the
basic program check handler so it searches the exception tables in case
of a program check.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-01-09 10:18:41 +01:00
Frank Pavlic
45d2530167 s390: iucv Kconfig help description changes
[PATCH 4/5] s390: iucv Kconfig help description changes

From: Ursula Braun <braunu@de.ibm.com>
        remove text from help description which does not
	apply anymore for 2.6 kernel series.

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-09 02:18:32 -05:00
Frank Blaschka
ee2db684b4 s390: qeth driver fixes: atomic context fixups
- qeth device functions were not callable
      in atomic context due to usage of wait_event_xxx operations in qeth.
      "schedule while atomic" message appeared and kernel dumped when
      removing slave from bond device.

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-09 02:18:32 -05:00
Frank Blaschka
2d36c16eb0 s390: qeth driver fixes: packet socket
- packet socket support is not complete.
      Recvfrom a packet socket does not fill the sockaddr_ll structure.
      device function hard_header_parse is not implemented.
      For layer 2 mode and layer 3 mode with fake_ll turned on, we have
      the information to fill sockaddr_ll.

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-09 02:18:32 -05:00
Frank Blaschka
95c78c8bfe s390: qeth driver fixes: VLAN hdr, perf stats
From: Ursula Braun <braunu@de.ibm.com>
        - VLAN header reordering did not work on packets
          received through qeth interface in layer 2 mode.
          This caused dhcpcd not to work with VLAN devices.
	- set qeth performance statistics initally inactive

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-09 02:18:31 -05:00
Heiko Carstens
3a6b95c81c qeth: fix uaccess handling and get rid of unused variable
[patch] qeth: fix uaccess handling and get rid of unused variable

drivers/s390/net/qeth_main.c: In function `qeth_process_inbound_buffer':
drivers/s390/net/qeth_main.c:2563: warning: unused variable `vlan_addr'

include/asm/uaccess.h: In function `qeth_do_ioctl':
drivers/s390/net/qeth_main.c:4847: warning:
 ignoring return value of `copy_to_user'
drivers/s390/net/qeth_main.c:4849: warning:
 ignoring return value of `copy_to_user'
drivers/s390/net/qeth_main.c:4996: warning:
 ignoring return value of `copy_to_user'

Cc: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-07 22:46:21 -05:00
Michael Holzheu
aa77015c4e [S390] cio: fix stsch_reset.
Copy inline assembly of stsch and add "memory" to clobber list in order
to prevent gcc from optimizing away the checking of the global variable
"pgm_check_occured".

Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-28 00:35:36 +01:00
Melissa Howland
524a237e45 [S390] Change max. buffer size for monwriter device.
Reduce the max. buffer size for the monwriter device to prevent a
possible problem with the z/VM monitor service.

Signed-off-by: Melissa Howland <melissah@us.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-28 00:35:25 +01:00
Stefan Bader
e42734e270 [S390] cio: css_register_subchannel race.
Asynchronous probe can release memory of a subchannel before
css_get_ssd_info is called. To fix this call css_get_ssd_info
before registering with driver core.

Signed-off-by: Stefan Bader <shbader@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-15 17:18:30 +01:00
Michael Holzheu
a45e14148f [S390] Fix reboot hang on LPARs
Reboot hangs on LPARs without diag308 support. The reason for this is,
that before the reboot is done, the channel subsystem is shut down.
During the reset on each possible subchannel a "store subchannel" is
done. This operation can end in a program check interruption, if the
specified subchannel set is not implemented by the hardware. During
the reset, currently we do not have a program check handler, which
leads to the described kernel bug. We install now a new program check
handler for the reboot code to fix this problem.

Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-15 17:18:22 +01:00
Christian Borntraeger
b3c14d0bfd [S390] sclp_cpi module license.
sclp_cpi is GPL. Make the module not taint the kernel

Signed-off-by: Christian Borntraeger <cborntra@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-15 17:18:20 +01:00
Ralph Wuerthner
13e742babd [S390] zcrypt: module unload fixes.
Add code to reset all queues for a domain and add missing tasklet_kill
call to ap bus module exit code.

Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-15 17:18:17 +01:00
Ursula Braun
028cf917b2 [S390] Hipersocket multicast queue: make sure outbound handler is called
A HiperSocket multicast queue works asynchronously. When sending
buffers, the buffer state change from PRIMED to EMPTY may happen
delayed. Reschedule the checking for changes in the outbound queue,
if there are still PRIMED buffers.

Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-15 17:18:14 +01:00
Robert P. J. Day
5cbded585d [PATCH] getting rid of all casts of k[cmz]alloc() calls
Run this:

	#!/bin/sh
	for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do
	  echo "De-casting $f..."
	  perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f
	done

And then go through and reinstate those cases where code is casting pointers
to non-pointers.

And then drop a few hunks which conflicted with outstanding work.

Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Greg KH <greg@kroah.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Paul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Karsten Keil <kkeil@suse.de>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Ian Kent <raven@themaw.net>
Cc: Steven French <sfrench@us.ibm.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Cc: Jaroslav Kysela <perex@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-13 09:05:58 -08:00
Linus Torvalds
88032b322a Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] Poison init section before freeing it.
  [S390] Use add_active_range() and free_area_init_nodes().
  [S390] Virtual memmap for s390.
  [S390] Update documentation for dynamic subchannel mapping.
  [S390] Use dev->groups for adding/removing the subchannel attribute group.
  [S390] Support for disconnected devices reappearing on another subchannel.
  [S390] subchannel lock conversion.
  [S390] Some preparations for the dynamic subchannel mapping patch.
  [S390] runtime switch for qdio performance statistics
  [S390] New DASD feature for ERP related logging
  [S390] add reset call handler to the ap bus.
  [S390] more workqueue fixes.
  [S390] workqueue fixes.
  [S390] uaccess_pt: add missing down_read() and convert to is_init().
2006-12-08 11:21:55 -08:00
Alan Cox
606d099cdd [PATCH] tty: switch to ktermios
This is the grungy swap all the occurrences in the right places patch that
goes with the updates.  At this point we have the same functionality as
before (except that sgttyb() returns speeds not zero) and are ready to
begin turning new stuff on providing nobody reports lots of bugs

If you are a tty driver author converting an out of tree driver the only
impact should be termios->ktermios name changes for the speed/property
setting functions from your upper layers.

If you are implementing your own TCGETS function before then your driver
was broken already and its about to get a whole lot more painful for you so
please fix it 8)

Also fill in c_ispeed/ospeed on init for most devices, although the current
code will do this for you anyway but I'd like eventually to lose that extra
paranoia

[akpm@osdl.org: bluetooth fix]
[mp3@de.ibm.com: sclp fix]
[mp3@de.ibm.com: warning fix for tty3270]
[hugh@veritas.com: fix tty_ioctl powerpc build]
[jdike@addtoit.com: uml: fix ->set_termios declaration]
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Acked-by: Peter Oberparleiter <oberpar@de.ibm.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08 08:28:57 -08:00
Josef Sipek
49522c97ac [PATCH] struct path: convert s390-drivers
Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08 08:28:49 -08:00
Peter Zijlstra
24ec839c43 [PATCH] tty: ->signal->tty locking
Fix the locking of signal->tty.

Use ->sighand->siglock to protect ->signal->tty; this lock is already used
by most other members of ->signal/->sighand.  And unless we are 'current'
or the tasklist_lock is held we need ->siglock to access ->signal anyway.

(NOTE: sys_unshare() is broken wrt ->sighand locking rules)

Note that tty_mutex is held over tty destruction, so while holding
tty_mutex any tty pointer remains valid.  Otherwise the lifetime of ttys
are governed by their open file handles.  This leaves some holes for tty
access from signal->tty (or any other non file related tty access).

It solves the tty SLAB scribbles we were seeing.

(NOTE: the change from group_send_sig_info to __group_send_sig_info needs to
       be examined by someone familiar with the security framework, I think
       it is safe given the SEND_SIG_PRIV from other __group_send_sig_info
       invocations)

[schwidefsky@de.ibm.com: 3270 fix]
[akpm@osdl.org: various post-viro fixes]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Alan Cox <alan@redhat.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Chris Wright <chrisw@sous-sol.org>
Cc: Roland McGrath <roland@redhat.com>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: James Morris <jmorris@namei.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Jan Kara <jack@ucw.cz>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08 08:28:38 -08:00
Cornelia Huck
529192f3b9 [S390] Use dev->groups for adding/removing the subchannel attribute group.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-08 15:55:57 +01:00
Cornelia Huck
d7b5a4c94f [S390] Support for disconnected devices reappearing on another subchannel.
- create a 'pseudo_subchannel' per channel subsystem (the 'orphanage')
- use the orphanage as a shelter for ccw_devices that can't remain on the same
  subchannel

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-08 15:54:28 +01:00
Cornelia Huck
2ec2298412 [S390] subchannel lock conversion.
Convert the subchannel lock to a pointer to a lock.  Needed for the dynamic
subchannel mapping patch.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-08 15:54:26 +01:00
Cornelia Huck
7674da77cb [S390] Some preparations for the dynamic subchannel mapping patch.
- Move adding subchannel attributes to css_register_subchannel().
- Don't call device_trigger_reprobe() for non-operational devices.
- Introduce io_subchannel_create_ccwdev().

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-08 15:54:21 +01:00
Ursula Braun
34249d0f92 [S390] runtime switch for qdio performance statistics
Remove CONFIG_QETH_PERF_STATS and use a sysfs attribute instead.
We want to have the ability to turn the statistics on/off at runtime.

Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-08 15:54:18 +01:00
Horst Hummel
9575bf2657 [S390] New DASD feature for ERP related logging
It is now possible to enable/disable ERP related logging without re-compile
and re-ipl. A additional sysfs-attribute 'erplog' allows to switch the
logging non-interruptive.

Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-08 15:54:15 +01:00
Ralph Wuerthner
85eca85039 [S390] add reset call handler to the ap bus.
Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-08 15:54:07 +01:00
Martin Schwidefsky
c16375329c [S390] more workqueue fixes.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-08 15:53:57 +01:00
Andrew Morton
e45ccc0562 [S390] workqueue fixes.
Cc: David Howells <dhowells@redhat.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-08 15:53:52 +01:00
Christoph Lameter
e18b890bb0 [PATCH] slab: remove kmem_cache_t
Replace all uses of kmem_cache_t with struct kmem_cache.

The patch was generated using the following script:

	#!/bin/sh
	#
	# Replace one string by another in all the kernel sources.
	#

	set -e

	for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do
		quilt add $file
		sed -e "1,\$s/$1/$2/g" $file >/tmp/$$
		mv /tmp/$$ $file
		quilt refresh
	done

The script was run like this

	sh replace kmem_cache_t "struct kmem_cache"

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:25 -08:00
Christoph Lameter
441e143e95 [PATCH] slab: remove SLAB_DMA
SLAB_DMA is an alias of GFP_DMA. This is the last one so we
remove the leftover comment too.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:24 -08:00
Christoph Lameter
54e6ecb239 [PATCH] slab: remove SLAB_ATOMIC
SLAB_ATOMIC is an alias of GFP_ATOMIC

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:24 -08:00
Al Viro
4927b3f74c [PATCH] More work_struct induced breakage (s390)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-06 14:51:14 -08:00
Cornelia Huck
47af551852 [S390] cio: Use device_reprobe() instead of bus_rescan_devices().
In io_subchannel_register(), it is better to just reprobe the current
device if it hasn't a driver yet than to rescan the whole bus.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04 15:41:07 +01:00
Cornelia Huck
d23861ff1a [S390] cio: Retry internal operations after vary off.
If I/O was running on a just varied off chpid, it will be terminated.
If this was a common I/O layer internal I/O, it needs to be retried.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04 15:41:04 +01:00
Cornelia Huck
24cb5b4846 [S390] cio: Use path verification for last path gone after vary off.
If the last path to a device is gone after a chpid has been varied
off, putting it on the slow queue doesn't prevent a device driver
from still attempting to use it (it may stay on the slow queue for a
long time). Instead, trigger a verify event which will prevent I/O
attempts from the device driver immediately.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04 15:41:01 +01:00
Ursula Braun
9163bb2e55 [S390] non-unique constant/macro identifiers.
Add some prefixes to constands defined in drivers/s390/net/qdio.h
and drivers/s390/lcs.h to make it possible to include the three
header files drivers/s390/net/qeth.h, drivers/s390/net/qdio.h and
drivers/net/s390/lcs.h in one C file. This is required for the
patch that generates the kerntypes.o file for use by lcrash.

Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04 15:40:59 +01:00
Heiko Carstens
c6b5b847a7 [S390] cpu shutdown rework
Let one master cpu kill all other cpus instead of sending an external
interrupt to all other cpus so they can kill themselves.
Simplifies reipl/shutdown functions a lot.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04 15:40:33 +01:00
Heiko Carstens
15e9b586e0 [S390] Reset infrastructure for re-IPL.
In case of re-IPL and diag308 doesn't work we have to reset all devices
manually and wait synchronously that each reset finished.
This patch adds the necessary infrastucture and the first exploiter of it.

Subsystems that need to add a function that needs to be called at re-IPL
may register/unregister this function via

struct reset_call {
	struct reset_call *next;
	void (*fn)(void);
};

void register_reset_call(struct reset_call *reset);
void unregister_reset_call(struct reset_call *reset);

When the registered function get called the context is:

- all cpus beside the current one are stopped
- all machine checks and interrupts are disabled
- prefixing is disabled
- a default machine check handler is available for use

The registered functions may not take any locks are sleep.

For the common I/O layer part of this patch:

Introduce a reset_call css_reset that does the following:
- clear all subchannels
- perform a rchp on all channel paths and wait for the resulting
  machine checks
This replaces the calls to clear_all_subchannels() and
cio_reset_channel_paths() for kexec and ccw reipl. reipl_ccw_dev() now
uses reipl_find_schid() to determine the subchannel id for a given
device id.
Also remove cio_reset_channel_paths() and friends since they are not
needed anymore.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04 15:40:26 +01:00
Horst Hummel
645c98c8b6 [S390] return 'count' for successful execution of dasd_eer_enable.
Currently the return value of 'dasd_eer_enable' is returned - even if the
function returned '0'. Now return 'count' for successful execution.

Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04 15:40:18 +01:00
Horst Hummel
29145a6c8c [S390] Enhanced handling of failed termination requests.
In case a request timed out and termination did not work, the console was
flooded with retry messages (every 1/10s). Now we use a 5s delay per retry and
generate a more precise message.

Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04 15:40:15 +01:00
Cornelia Huck
66a4263b99 [S390] Add MODALIAS= to the uevent for the ap bus.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04 15:40:10 +01:00
Martin Schwidefsky
520a4e3728 [S390] 3215 device locking.
Remove lock pointer from 3215 device structure. Use get_ccwdev_lock
for each use of the lock in the ccw-device structure.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04 15:40:07 +01:00
Horst Hummel
01376f4495 [S390] handle incorrect values when writing to dasd sysfs attributes.
When writing to dasd attributes (e.g. readonly), all values besides '1'
are handled like '0'.
Other sysfs-attributes like 'online' are checking for '1' and for '0'
and do not accept other values. Therefore enhanced checking and error
handling in dasd_devmap attribute store functions.

Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04 15:39:50 +01:00
Al Viro
5a5a852e45 [NET] driver/s390/net: Checksum annotations.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02 21:23:43 -08:00
Matt LaPlante
0779bf2d2e Fix misc .c/.h comment typos
Fix various .c/.h typos in comments (no code changes).

Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-11-30 05:24:39 +01:00
Cornelia Huck
3c9da7ba04 [S390] cio: Make ccw_device_register() static.
ccw_device_register() is only called from io_subchannel_register()
and io_subchannel_probe() and will never be called for possible
non-io subchannels.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-27 12:39:33 +02:00
Ralph Wuerthner
f3b017d8c9 [S390] Improve AP bus device removal.
Added a call to device_unregister() in ap_scan_bus() to actively
remove unavailable AP bus devices with every bus scan. Previously
devices were only removed in ap_queue_message() or __ap_poll_all().

Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-27 12:39:26 +02:00
Cornelia Huck
c2b1449bd1 [S390] cio: css_probe_device() must be called enabled.
Move css_probe_device() behind giving up the lock for the old subchannel
in css_evaluate_known_subchannel() so we aren't disabled when we call it.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-27 12:39:17 +02:00
Linus Torvalds
71fa0a849b Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (40 commits)
  [SCSI] aic79xx: Print out signalling
  [SCSI] aic7xxx: Remove slave_destroy
  [SCSI] aic79xx: set precompensation
  [SCSI] aic79xx: Fixup external device reset
  [SCSI] replace u8 and u32 with __u8 and __u32 in scsi.h for user space
  [SCSI] lpfc: fix printk format warning
  [SCSI] aic79xx: make ahd_set_tags() static
  [SCSI] aic7xxx: cleanups
  [SCSI] drivers/scsi: Handcrafted MIN/MAX macro removal
  [SCSI] scsi_debug: support REPORT TARGET PORT GROUPS
  [SCSI] qla1280 bus reset typo
  [SCSI] libiscsi: fix logout pdu processing
  [SCSI] libiscsi: fix aen support
  [SCSI] libiscsi: fix missed iscsi_task_put in xmit error path
  [SCSI] libiscsi: fix oops in connection create failure path
  [SCSI] iscsi class: fix slab corruption during restart
  [SCSI] Switch fdomain to the pci_get API
  [SCSI] add can_queue to host parameters
  [SCSI] megaraid_{mm,mbox}: 64-bit DMA capability fix
  [SCSI] aic94xx: Supermicro motherboards support
  ...
2006-10-25 20:22:55 -07:00
Swen Schillig
8d1a006049 [SCSI] zfcp: initialize scsi_host_template.max_sectors with appropriate value
Define ZFCP_MAX_SECTORS and initialize scsi_host_template.max_sectors
with appropriate value.

Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-10-25 15:12:50 -07:00
Stefan Weinhuber
867dcd0f32 [S390] dasd: clean up timer.
Clean up dasd timer when when a dasd device is set offline.

Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-18 18:30:53 +02:00
Melissa Howland
2c91971f84 [S390] monwriter find header logic.
Fix logic for finding matching buffers.

Signed-off-by: Melissa Howland <melissah@us.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-18 18:30:49 +02:00
Cornelia Huck
85a4aa64a8 [S390] cio: sch_no -> schid.sch_no conversion.
Overlooked one sch_no -> schid.sch_no conversion.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-18 18:30:47 +02:00
Peter Oberparleiter
8b42f5c202 [S390] cio: invalid device operational notification
Reset device operational notification flag when channel paths become
unavailable during path verification.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-18 18:30:43 +02:00
Cornelia Huck
12975aef62 [S390] cio: remove casts from/to (void *).
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-11 15:31:47 +02:00
Cornelia Huck
e7769b48a0 [S390] cio: Remove grace period for vary off chpid.
The grace period handling introduced needless complexity. It didn't
help the dasd driver (which can handle terminated I/O just well),
and it doesn't help for long running channel programs (which won't
complete during the grace period anyway). Terminating I/O using a
path that just disappeared immediately is much more consistent with
what the user expects.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-11 15:31:41 +02:00
Cornelia Huck
7896426805 [S390] cio: Use ccw_dev_id and subchannel_id in ccw_device_private
Use the proper structures to identify device and subchannel. Change
get_disc_ccwdev_by_devno() to get_disc_ccwdev_by_dev_id().

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-11 15:31:38 +02:00
Melissa Howland
715d854bc2 [S390] monwriter kzalloc size.
Fix length on kzalloc for data buffer so as to not overwrite
unallocated storage.

Signed-off-by: Melissa Howland <melissah@us.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-11 15:31:34 +02:00
Cornelia Huck
08983787d2 [S390] cio: add missing KERN_INFO printk header.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-11 15:31:30 +02:00
Heiko Carstens
9d0a57cbdb [S390] irq change improvements.
Remove the last few places where a pointer to pt_regs gets passed.
Also make sure we call set_irq_regs() before irq_enter() and after
irq_exit(). This doesn't fix anything but makes sure s390 looks the
same like all other architectures.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-11 15:31:26 +02:00
Al Viro
6aae873847 [PATCH] drivers/s390 misc sparse annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-10 15:37:20 -07:00
Heiko Carstens
5a489b9846 [S390] irq change build fixes.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-06 16:38:35 +02:00
Cornelia Huck
7e8ae7bfe8 [S390] cio: 0 is a valid chpid.
In order to determine chpid validity, we need to check whether the
corresponding path is specified in the pim.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-06 16:38:29 +02:00
Melissa Howland
2d103d5a80 [S390] monwriter buffer limit.
Make max_bufs a global (per linux guest) limit.

Signed-off-by: Melissa Howland <melissah@us.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-06 16:38:26 +02:00
Christian Borntraeger
d83682b397 [S390] ap bus poll thread priority.
The ap bus is supposed to have a low priority. We must use 19 instead
of -20, which is just the opposite.

Signed-off-by: Christian Borntraeger <cborntra@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-06 16:38:22 +02:00
Peter Oberparleiter
3bdc9d0b40 [S390] cio: improve unit check handling for internal operations
Retry internal operation after unit check instead of aborting them.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-04 20:02:30 +02:00
Peter Oberparleiter
3230015e15 [S390] cio: add timeout handler for internal operations.
Add timeout handler for common-I/O-layer-internal I/O operations.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-04 20:02:26 +02:00
Ralph Wuerthner
4e56296d47 [S390] zcrypt device registration/unregistration race.
Fix a race condition during AP device registration and unregistration.

Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-04 20:02:05 +02:00
Cornelia Huck
f1ee3281be [S390] Add timeouts during sense PGID, path verification and disband PGID.
While the machine owns us an interrupt in these cases (and we should get
one), reality isn't always like that...

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-04 20:02:02 +02:00
Cedric Le Goater
9ec52099e4 [PATCH] replace cad_pid by a struct pid
There are a few places in the kernel where the init task is signaled.  The
ctrl+alt+del sequence is one them.  It kills a task, usually init, using a
cached pid (cad_pid).

This patch replaces the pid_t by a struct pid to avoid pid wrap around
problem.  The struct pid is initialized at boot time in init() and can be
modified through systctl with

	/proc/sys/kernel/cad_pid

[ I haven't found any distro using it ? ]

It also introduces a small helper routine kill_cad_pid() which is used
where it seemed ok to use cad_pid instead of pid 1.

[akpm@osdl.org: cleanups, build fix]
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-02 07:57:25 -07:00
Cedric Le Goater
782237a241 [PATCH] s390: update fs3270 to use a struct pid
Replaces the pid_t value with a struct pid to avoid pid wrap around
problems.

Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Acked-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-02 07:57:15 -07:00
Jeff Dike
b68e31d0eb [PATCH] const struct tty_operations
As part of an SMP cleanliness pass over UML, I consted a bunch of
structures in order to not have to document their locking.  One of these
structures was a struct tty_operations.  In order to const it in UML
without introducing compiler complaints, the declaration of
tty_set_operations needs to be changed, and then all of its callers need to
be fixed.

This patch declares all struct tty_operations in the tree as const.  In all
cases, they are static and used only as input to tty_set_operations.  As an
extra check, I ran an i386 allyesconfig build which produced no extra
warnings.

53 drivers are affected.  I checked the history of a bunch of them, and in
most cases, there have been only a handful of maintenance changes in the
last six months.  serial_core.c was the busiest one that I looked at.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-02 07:57:14 -07:00
Peter Zijlstra
6e9a4738c9 [PATCH] completions: lockdep annotate on stack completions
All on stack DECLARE_COMPLETIONs should be replaced by:
DECLARE_COMPLETION_ONSTACK

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-01 00:39:24 -07:00
David Howells
9361401eb7 [PATCH] BLOCK: Make it possible to disable the block layer [try #6]
Make it possible to disable the block layer.  Not all embedded devices require
it, some can make do with just JFFS2, NFS, ramfs, etc - none of which require
the block layer to be present.

This patch does the following:

 (*) Introduces CONFIG_BLOCK to disable the block layer, buffering and blockdev
     support.

 (*) Adds dependencies on CONFIG_BLOCK to any configuration item that controls
     an item that uses the block layer.  This includes:

     (*) Block I/O tracing.

     (*) Disk partition code.

     (*) All filesystems that are block based, eg: Ext3, ReiserFS, ISOFS.

     (*) The SCSI layer.  As far as I can tell, even SCSI chardevs use the
     	 block layer to do scheduling.  Some drivers that use SCSI facilities -
     	 such as USB storage - end up disabled indirectly from this.

     (*) Various block-based device drivers, such as IDE and the old CDROM
     	 drivers.

     (*) MTD blockdev handling and FTL.

     (*) JFFS - which uses set_bdev_super(), something it could avoid doing by
     	 taking a leaf out of JFFS2's book.

 (*) Makes most of the contents of linux/blkdev.h, linux/buffer_head.h and
     linux/elevator.h contingent on CONFIG_BLOCK being set.  sector_div() is,
     however, still used in places, and so is still available.

 (*) Also made contingent are the contents of linux/mpage.h, linux/genhd.h and
     parts of linux/fs.h.

 (*) Makes a number of files in fs/ contingent on CONFIG_BLOCK.

 (*) Makes mm/bounce.c (bounce buffering) contingent on CONFIG_BLOCK.

 (*) set_page_dirty() doesn't call __set_page_dirty_buffers() if CONFIG_BLOCK
     is not enabled.

 (*) fs/no-block.c is created to hold out-of-line stubs and things that are
     required when CONFIG_BLOCK is not set:

     (*) Default blockdev file operations (to give error ENODEV on opening).

 (*) Makes some /proc changes:

     (*) /proc/devices does not list any blockdevs.

     (*) /proc/diskstats and /proc/partitions are contingent on CONFIG_BLOCK.

 (*) Makes some compat ioctl handling contingent on CONFIG_BLOCK.

 (*) If CONFIG_BLOCK is not defined, makes sys_quotactl() return -ENODEV if
     given command other than Q_SYNC or if a special device is specified.

 (*) In init/do_mounts.c, no reference is made to the blockdev routines if
     CONFIG_BLOCK is not defined.  This does not prohibit NFS roots or JFFS2.

 (*) The bdflush, ioprio_set and ioprio_get syscalls can now be absent (return
     error ENOSYS by way of cond_syscall if so).

 (*) The seclvl_bd_claim() and seclvl_bd_release() security calls do nothing if
     CONFIG_BLOCK is not set, since they can't then happen.

Signed-Off-By: David Howells <dhowells@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2006-09-30 20:52:31 +02:00
Jens Axboe
4aff5e2333 [PATCH] Split struct request ->flags into two parts
Right now ->flags is a bit of a mess: some are request types, and
others are just modifiers. Clean this up by splitting it into
->cmd_type and ->cmd_flags. This allows introduction of generic
Linux block message types, useful for sending generic Linux commands
to block devices.

Signed-off-by: Jens Axboe <axboe@suse.de>
2006-09-30 20:23:37 +02:00
Al Viro
fd68322209 [IPV4]: inet_addr_type() annotations
argument and inferred net-endian variables in callers annotated.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-28 18:01:07 -07:00
Martin Schwidefsky
94c12cc7d1 [S390] Inline assembly cleanup.
Major cleanup of all s390 inline assemblies. They now have a common
coding style. Quite a few have been shortened, mainly by using register
asm variables. Use of the EX_TABLE macro helps  as well. The atomic ops,
bit ops and locking inlines new use the Q-constraint if a newer gcc
is used.  That results in slightly better code.

Thanks to Christian Borntraeger for proof reading the changes.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-28 16:56:43 +02:00
Jan Glauber
51dced544e [S390] init_timer in tty3270.
Call init_timer only once fpr tp->timer in tty3270.

Signed-off-by: Jan Glauber <jan.glauber@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-28 16:55:53 +02:00
Christian Borntraeger
1fce518e8e [S390] remove unnecessary includes.
Signed-off-by: Christian Borntraeger <cborntra@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-28 16:55:33 +02:00
Andreas Herrmann
8165428610 [SCSI] zfcp: fix: avoid removal of fsf reqs before qdio queues are down
Fix the fix ... One of my previous fixes introduced removal of all fsf
requests in zfcp's eh_host_reset_handler. But this must not happen
before qdio queues are shut down. So, I revert the changes of
zfcp_scsi_eh_host_reset_handler.

Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-09-23 18:01:46 -05:00
Andreas Herrmann
2abbe866c8 [SCSI] zfcp: introduce struct timer_list in struct zfcp_fsf_req
This instance will be used whenever a timer is needed for
a request by zfcp.

Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-09-23 18:01:23 -05:00
Andreas Herrmann
4eff4a3651 [SCSI] zfcp: fix: use correct req_id in eh_abort_handler
zfcp's eh_abort_handler used the wrong request ID to
identify the request to be aborted. The bug was introduced
with commit fea9d6c7bc
for improved management of request IDs. The bug is
fixed with this patch.

Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-09-23 18:00:56 -05:00
Heiko Carstens
dd52e0eaf8 [SCSI] zfcp: create private slab caches to guarantee proper data alignment
Create private slab caches in order to guarantee proper alignment of
data structures that get passed to hardware.

Sidenote: with this patch slab cache debugging will finally work on s390
(at least no known problems left).

Furthermore this patch does some minor cleanups:
- store ptr for transport template in struct zfcp_data

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Compile fix ups and
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-09-23 17:54:24 -05:00
Heiko Carstens
d136205182 [SCSI] zfcp: remove zfcp_ccw_unregister function
Remove unused zfcp_ccw_unregister function (leftover from zfcp's
module_exit era).

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-09-23 17:49:52 -05:00
Peter Oberparleiter
564337f34c [S390] cio: subchannel evaluation function operates without lock
css_evaluate_subchannel() operates subchannel without lock which can
lead to erratic behavior caused by concurrent device access. Also
split evaluation function to make it more readable.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 16:00:01 +02:00
Peter Oberparleiter
28bdc6f623 [S390] cio: always query all paths on path verification.
Reappearing channel paths are sometimes not utilized by CCW devices
because path verification incorrectly relies on path-operational-mask
information which is not updated until a channel path has been used
again.
Modify path verification procedure to always query all available paths
to a device.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:59:59 +02:00
Peter Oberparleiter
e0e32c8eba [S390] cio: update path groups on logical CHPID changes.
CHPIDs that are logically varied off will not be removed from
a CCW device's path group because resign-from-pathgroup command is
issued with invalid path mask of 0 because internal CCW operations
are masked by the logical path mask after the relevant bits are
cleared by the vary operation.
Do not apply logical path mask to internal operations.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:59:57 +02:00
Peter Oberparleiter
dd9963f9dd [S390] cio: subchannels in no-path state.
Subchannel may incorrectly remain in state no-path after channel paths
have reappeared. Currently the scan for subchannels which are using a
channel path ends at the first occurrence if a full link address was
provided by the channel subsystem. The scan needs to continue over
all subchannels.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:59:54 +02:00
Peter Oberparleiter
dcd707b4bd [S390] Replace nopav-message on VM.
Specifying kernel parameter "dasd=nopav" on systems running under VM
has no function but results in message "disable PAV mode". Correct
message is "'nopav' not supported on VM".

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:59:52 +02:00
Peter Oberparleiter
db0c2d5908 [S390] set modalias for ccw bus uevents.
Add the MODALIAS environment variable for ccw bus uevents.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:59:49 +02:00
Cornelia Huck
250b2dc833 [S390] Get rid of DBG macro.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:59:47 +02:00
Melissa Howland
31b5808829 [S390] Linux API for writing z/VM APPLDATA Monitor records.
This patch delivers a new Linux API in the form of a misc char
device that is useable from user space and allows write access
to the z/VM APPLDATA Monitor Records collected by the *MONITOR
System Service of z/VM.

Signed-off-by: Melissa Howland <melissah@us.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:59:34 +02:00
Christian Borntraeger
e620c49400 [S390] xpram off by one error.
The xpram driver shows and uses 4096 bytes less than available.

Signed-off-by: Christian Borntraeger <cborntra@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:59:32 +02:00
Christian Borntraeger
45af3af876 [S390] fix typo in vmcp.
Fix comment typo in vmcp, it is z/VM and not v/VM.

Signed-off-by: Christian Borntraeger <cborntra@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:59:24 +02:00
Frank Pavlic
6981e936aa [S390] qdio slsb processing state.
The last SLSB has to be set to STATE_PROCESSING if we really want to
use the PROCESSING feature.

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:59:19 +02:00
Heiko Carstens
81388d2a45 [S390] Missing initialization in common i/o layer.
Previous patch that was intended to reduce stack usage within common
i/o layer didn't consider implicit memset(..., 0, ...) used with the
initializations used before.
Add these missing memsets wherever it's not obvious that the
concerned memory region is zeroed. This should give the same semantics
as before.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:59:17 +02:00
Heiko Carstens
e87bfe51b5 [S390] convert some assembler to C.
Convert GET_IPL_DEVICE assembler macro to C function.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:59:15 +02:00
Heiko Carstens
1375fc1fb0 [S390] __exit cleanup.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:59:12 +02:00
Martin Schwidefsky
0fee644ada [S390] cleanup sysinfo and add system z9 specific extensions.
With System z9 additional fields have been added to the output of the
store system information instruction. This patch adds the new model
information field and the alternate cpu capability fields to the
output of /proc/sysinfo. While we at it clean up the code as well.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:59:10 +02:00
Horst Hummel
b0035f127e [S390] dasd default debug level.
Enhanced default DBF level to get most important messages
in debug feature files.

Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:59:07 +02:00
Martin Schwidefsky
a00bfd7147 [S390] dasd deadlock after state change pending interrupt.
The dasd_device_from_cdev function is called from interrupt context
to get the struct dasd_device associated with a ccw device. The
driver_data of the ccw device points to the dasd_devmap structure
which contains the pointer to the dasd_device structure. The lock
that protects the dasd_devmap structure is acquire with out irqsave.
To prevent the deadlock in dasd_device_from_cdev if it is called
from interrupt context the dependency to the dasd_devmap structure
needs to be removed. Let the driver_data of the ccw device point
to the dasd_device structure directly and use the ccw device lock
to protect the access.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:59:05 +02:00
Frank Pavlic
47addc84b4 [S390] qdio_get_micros return value.
qdio_get_micros is supposed to return microseconds. The get_clock()
return value needs to be shifted by 12 to get to microseconds.

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:59:03 +02:00
Heiko Carstens
39b083fe1c [S390] empty function defines.
Use do { } while (0) constructs instead of empty defines to avoid
subtle compile bugs.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:58:51 +02:00
Michael Holzheu
ff6b8ea68f [S390] ipl/dump on panic.
It is now possible to specify a ccw/fcp dump device which is used to
automatically create a system dump in case of a kernel panic. The dump
device can be configured under /sys/firmware/dump.
In addition it is now possible to specify a ccw/fcp device which is used
for the next reboot of Linux. The reipl device can be configured under
/sys/firmware/reipl.

Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:58:49 +02:00
Ralph Wuerthner
5432114baf [S390] zcrypt secure key cryptography extension.
Allow the user space to send extended cprb messages directly to the
PCIXCC / CEX2C cards. This allows the CCA library to construct special
crypto requests that use "secure" keys that are stored on the card.

Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:58:36 +02:00
Martin Schwidefsky
fe3a1be59c [S390] zcrypt driver Makefile, Kconfig and monolithic build.
The Makefile and Kconfig changes should be obvious. The monolithic
build option is there to create an old-style z90crypt module for
backward compatability to older distributions.

Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:58:34 +02:00
Martin Schwidefsky
6684af1a07 [S390] zcrypt PCICC, PCIXCC coprocessor card ap bus drivers.
Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:58:32 +02:00
Martin Schwidefsky
963ed931c3 [S390] zcrypt CEX2A, CEX2C, PCICA accelerator card ap bus drivers.
Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:58:29 +02:00
Martin Schwidefsky
2dbc2418ba [S390] zcrypt user space interface.
The user space interface of the zcrypt device driver implements the old
user space interface as defined by the old z90crypt driver. Everything
is there, the /dev/z90crypt misc character device, all the lovely ioctls
and the /proc file. Even writing to the z90crypt proc file to configure
the crypto device still works. It stands to reason to remove the proc
write function someday since a much cleaner configuration via the sysfs
is now available.

The ap bus device drivers register crypto cards to the zcrypt user
space interface. The request router of the user space interface
picks one of the registered cards based on the predicted latency
for the request and calls the driver via a callback found in the
zcrypt_ops of the device. The request router only knows which
operations the card can do and the minimum / maximum number of bits
a request can have.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:58:27 +02:00
Martin Schwidefsky
1534c3820c [S390] zcrypt adjunct processor bus.
Add a bus for the adjunct processor interface. Up to 64 devices can
be connect to the ap bus interface, each device with 16 domains. That
makes 1024 message queues. The interface is asynchronous, the answer
to a message sent to a queue needs to be received at some later point
in time. Unfortunately the interface does not provide interrupts when
a message reply is pending. So the ap bus needs to implement some
fancy polling, each active queue is polled once per 1/HZ second or
continuously if an idle cpus exsists and the poll thread is activ
(see poll_thread parameter).

The ap bus uses the sysfs path /sys/bus/ap and has two bus attributes,
ap_domain and config_time. The ap_domain selects one of the 16 domains
to be used for this system. This limits the maximum number of ap devices
to 64. The config_time attribute contains the number of seconds between
two ap bus scans to find new devices.

The ap bus uses the modalias entries of the form "ap:tN" to autoload
the ap driver for hardware type N. Currently known types are:
3 - PCICC, 4 - PCICA, 5 - PCIXCC, 6 - CEX2A and 7 - CEX2C.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:58:25 +02:00
Martin Schwidefsky
7561b974e0 [S390] remove old z90crypt driver.
The z90crypt driver has served its term. It is replaced by the shiny
new zcrypt device driver.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-20 15:58:22 +02:00
Frank Pavlic
8b98a37c4b [PATCH] s390: qeth driver fixes [6/6]
[PATCH 9/9] s390: qeth driver fixes [6/6]

From: Frank Pavlic <fpavlic@de.ibm.com>
	- Hipersockets has no IPV6 support, thus prevent issueing
	  SETRTG_IPV6 control commands on Hipersockets devices.
	- fixed error handling in qeth_sysfs_(un)register

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-17 01:03:08 -04:00
Frank Pavlic
f956b6902e [PATCH] s390: qeth driver fixes [5/6]
[PATCH 8/9] s390: qeth driver fixes [5/6]

From: Frank Pavlic <fpavlic@de.ibm.com>
	fix kernel panic in qdio queue handling.
	qeth_qdio_clear_card() could be invoked by 2 CPUs
	simultaneously (for example reboot event and recovery).

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-17 01:03:07 -04:00
Frank Pavlic
09d2d38a15 [PATCH] s390: qeth driver fixes [4/6]
[PATCH 7/9] s390: qeth driver fixes [4/6]

From: Frank Pavlic <fpavlic@de.ibm.com>
	- fix kernel crash due to race,
	  set card->state to SOFTSETUP after
	  card and card->dev are initialized properly.
	- remove CONFIG_QETH_PERF_STATS, use sysfs attribute instead,
	  as we want to have the ability to turn on/off the
	  statistics at runtime.

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-17 01:03:07 -04:00
Frank Pavlic
f7b65d70a3 [PATCH] s390: qeth driver fixes [3/6]
[PATCH 6/9] s390: qeth driver fixes [3/6]

From: Frank Pavlic <fpavlic@de.ibm.com>
       	fixed kernel panic caused by qeth driver:
        Using a bonding device qeth driver will realloc
        headroom for every skb coming from the bond device.
        Once this happens qeth frees the original skb and
        set the skb pointer to the new realloced skb.
        Under heavy transmit workload (e.g.UDP streams) through bond
        network device the qdio output queue might get full.
        In this case we return with EBUSY from qeth_send_packet.
        Returning to qeth_hard_start_xmit routine
        the skb address on the stack still points to the old address,
        which has been freed before.
        Returning from qeth_hard_start_xmit with EBUSY results in
        requeuing the skb. In this case it corrupts the qdisc queue
        and results in kernel panic.

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-17 01:03:07 -04:00
Frank Pavlic
1fda1a120b [PATCH] s390: qeth driver fixes [2/6]
[PATCH 5/9] s390: qeth driver fixes [2/6]

From: Frank Pavlic <fpavlic@de.ibm.com>
	- fixed error handling in create_device_attributes
	- fixed some minor bugs in IPv4
	  and IPv6 address checking

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-17 01:03:07 -04:00
Frank Pavlic
330b636908 [PATCH] s390: qeth driver fixes [1/6]
[PATCH 4/9] s390: qeth driver fixes [1/6]

From: Frank Pavlic <fpavlic@de.ibm.com>
	- Drop incoming packets with vlan_tag set
          if card->vlangrp is not set.
        - use always vlan_hwaccel_rx to pass
	  vlan frames to the stack.
        - fix recovery problem. Device was recovered
	  properly but still not working.
	  netif_carrier_on call right before
          recovery start fixes it.

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-17 01:03:07 -04:00
Frank Pavlic
f449c565ea [PATCH] s390: Makefile cleanup
[PATCH 3/9] s390: Makefile cleanup

From: Frank Pavlic <fpavlic@de.ibm.com>
 	remove CONFIG_MPC from Makefile which was
	introduced accidently in the past.

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-17 01:03:07 -04:00
Frank Pavlic
16a83b3077 [PATCH] s390: netiucv driver fixes
[PATCH 2/9] s390: netiucv driver fixes

From: Frank Pavlic <fpavlic@de.ibm.com>
	- missing lock initialization added
        - avoid duplicate iucv-interfaces to the same peer
       	- rw-lock added for manipulating the list of
          defined iucv connections

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-17 01:03:07 -04:00
Frank Pavlic
4c7ae6ea59 [PATCH] s390: minor s390 network driver fixes
Hi Jeff,
this is a RESEND of the nine s390 network driver patches.
I finally found  that my kmail corrupted almost every patch
I sent the last time. Please apply these 9 patches and forget
about my first attempt! Sorry for the delay, I had some fights
with sendmail, IMAP and mutt configuration.

Frank

[RESEND PATCH 1/9] s390: minor s390 network driver fixes

From: Frank Pavlic <fpavlic@de.ibm.com>
	- iucv driver:
          use do { } while (0) constructs
	  instead of empty defines to avoid compile bugs.
        - ctc driver:
          missing lock initialization added
        - lcs driver:
          BUG_ON usage was removed accidently
	  with the last lcs patch.
          Put them back in place.

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-17 01:03:06 -04:00
Stefan Bader
7b7db1b595 [S390] cio: unsolicited interrupts during sense pgid.
Calls to set a device online with path grouping may get stuck in
some cases because certain device conditions where discarded after
unsolicited interrupts.
Check subchannel activity after unsolicited interrupts and retry
the operation if the subchannel is idle.

Signed-off-by: Stefan Bader <shbader@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-30 14:33:39 +02:00
Peter Oberparleiter
3b88508a31 [S390] cio: no path after machine check.
Devices enter no-path state after disabling a channel path
via the SE even though another path has been reenabled at the SE.
The devices are set into no-path state before triggering path
verification even though other paths may have become available.
To fix this trigger path verification before setting a device into
no-path state.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-30 14:33:37 +02:00
Heiko Carstens
292888c81e [S390] cio: kernel stack overflow.
Use different kind of assignment to make sure gcc doesn't create code
that creates temp variables on the stack, assigns values to it and
copies the content of the whole temp variable to the destination.
This reduces stack usage of e.g. ccwgroup_driver_register from 976
to 48 bytes instead.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-30 14:33:35 +02:00
Horst Hummel
8f61701bdf [S390] dasd: fix device shutdown process.
Fix clear_IO handling (need to wait for interrupt) and
introduced error-handling in shutdown processing.

Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-30 14:33:33 +02:00
Greg Kroah-Hartman
f834c75542 Merge gregkh@master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6 2006-08-26 13:04:23 -07:00
Greg Kroah-Hartman
428a7e3e46 Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6 2006-08-24 10:54:22 -07:00
Horst Hummel
8e79a441a4 [S390] dasd PAV enabling.
The subsystem check in the PAV code is incorrect, it enables PAV
per device instead of per subsystem.

Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-24 13:22:36 +02:00
Heiko Carstens
3d8f3f3c36 [PATCH] s390: fix arp_tbl lock usage in qeth
qeth: bhs must be disabled when accessing neighbour tables.

=================================
[ INFO: inconsistent lock state ]

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-08-19 17:44:30 -04:00
Peter Oberparleiter
b18a60e7c2 [S390] inaccessible PAV alias devices on LPAR.
In some situations PAV alias devices on LPAR are not accessible.
The initialization procedure required to enable access to PAV alias
devices has to be performed per storage server subsystem and not
only once per storage server.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-16 13:49:33 +02:00
Heiko Carstens
2f6c55fc31 [S390] dasd slab cache alignment.
The dasd_page_cache should return page addresses and therefore the
cache must be created with an alignment of PAGE_SIZE.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-16 13:49:27 +02:00
Horst Hummel
d0710c7c9e [S390] dasd calls kzalloc while holding a spinlock.
The dasd function dasd_set_uid calls kzalloc while holding the
dasd_devmap_lock. Rearrange the code to do the memory allocation
outside the lock.

Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-10 15:45:16 +02:00
Horst Hummel
ebc4599990 [S390] dasd set offline kernel bug.
The request queue flush function of the dasd driver has to dequeue
the requests first and then call the end request function. Otherwise
a kernel bug in ll_rw_block.c might get triggered.

Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-09 10:30:22 +02:00
Martin Schwidefsky
37ab46a3f4 [S390] xpram system device class.
Remove system device class for xpram. It creates the directory hierarchy
under /sys/devices/system/xpram/xpram0. The xpram0 directory is empty and
it is always created while xpram1 and following devices are always missing,
independent if the devices exist or not. Since the xpram devices are
listed in /proc/partitions and /sys/block/ as slram<x> the system device
class for xpram is meaningless.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-07 18:13:06 +02:00
Peter Oberparleiter
65200c291c [S390] lost interrupt after chpid vary off/on cycle.
I/O on a CCW device may stall if a channel path to that device is
logicaly varied off/on. A user I/O interrupt can get misinterpreted
as interrupt for an internal path verification operation due to a
missing check and is therefore never reported to the device driver.

Correct check for pending interruptions before starting path
verification.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-07 17:00:33 +02:00
Cornelia Huck
4bc0c4f9e7 [S390] retry after deferred condition code.
Do a retry of read device characteristics / read configuration
data when a deferred condition code 1 is encountered in
ccw_device_wake_up().

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-07 17:00:30 +02:00
Heiko Carstens
25a2001a28 [S390] tape class return value handling.
Without this patch register_tape_dev() will always fail, but might
return a value that is not an error number. This will lead to accesses
to already freed memory areas...

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-08-07 17:00:28 +02:00
James Bottomley
00dd7b7d26 Merge ../linux-2.6
Conflicts:

	arch/ia64/hp/sim/simscsi.c

Stylistic differences in two separate fixes for buffer->request_buffer
problem.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-08-06 12:42:33 -05:00
Andreas Herrmann
58b3ac07fe [SCSI] zfcp: bump version number
New version number fo zfcp driver.

Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-08-06 11:31:33 -05:00
Andreas Herrmann
f6c0e7a7b3 [SCSI] zfcp: minor erp bug fixes
Bug fixes for zfcp's erp:
- trigger adapter reopen if do_QDIO fails
- avoid erp deadlock if registration of scsi target or remote port hang
- do not treat as error if exchange port data fails
- decrease timeout for target reset and aborts
- mark unit failed if slave_destroy is called

Additionally some code cleanup was done:
- made some functions void when retval is not of interest
- shortened initialization of zfcp's host_template
- corrected some comments

Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-08-06 11:31:17 -05:00
Volker Sameske
fea9d6c7bc [SCSI] zfcp: improve management of request IDs
Improve request handling. Use hash table to manage request IDs.

Signed-off-by: Volker Sameske <sameske@de.ibm.com>
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-08-06 11:31:00 -05:00
Cornelia Huck
1708822984 [S390] duplicate ccw devices in ccwgroup.
Fail to create a ccwgroup device if a ccw device is passed in twice.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-07-27 14:00:33 +02:00
Peter Oberparleiter
ba4ba8a69d [S390] permanent subchannel busy conditions may cause I/O stall
In special conditions where a subchannel rejects the HALT I/O-
instruction with a busy indication (cc 2), I/O may stall.
I/O request termination logic retries HALT I/O indefinitely
because it expects HALT I/O to alter the subchannel status which
is not true when cc 2 is returned.
In case of a busy indication, try CLEAR I/O instruction immediately.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-07-27 14:00:23 +02:00
Heiko Carstens
d7cf0d57ef [S390] sysfs_create_xxx return values.
Take return values of sysfs_create_group & friends into account.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-07-18 13:46:58 +02:00
Cornelia Huck
13ffa927ab [S390] channel measurement interval display.
Display avg_sample_interval in nanoseconds, like it is documented.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-07-17 16:09:28 +02:00
Heiko Carstens
f257b06322 [S390] xpram module parameter parsing - take 2.
Don't use memparse since the default size modifier is 'k'.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-07-17 16:09:23 +02:00
Heiko Carstens
d2c993d845 [S390] Fix sparse warnings.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-07-12 16:41:55 +02:00
Cornelia Huck
7e560814de [S390] path grouping and path verifications fixes.
1. Multipath devices for which SetPGID is not supported are not handled well.
   Use NOP ccws for path verification (sans path grouping) when SetPGID is not
   supported.
2. Check for PGIDs already set with SensePGID on _all_ paths (not just the
   first one) and try to find a common one. Moan if no common PGID can be
   found (and use NOP verification). If no PGIDs have been set, use the css
   global PGID (as before). (Rationale: SetPGID will get a command reject if
   the PGID it tries to set does not match the already set PGID.)
3. Immediately before reboot, issue RESET CHANNEL PATH (rcp) on all chpids. This
   will remove the old PGIDs. rcp will generate solicited CRWs which can be
   savely ignored by the machine check handler (all other actions create
   unsolicited CRWs).

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-07-12 16:40:19 +02:00
Heiko Carstens
5c898ba9d4 [S390] xpram module parameter parsing.
The module parameters for xpram are not or in a wrong way parsed.
The xpram module uses the module_param_array directive with an int
parameter which causes the kernel to automatically parse the passed
numbers. This will cause errors if arguments are omitted or cause
wrong results if arguments have size qualifiers.
Use module_param_array with charp and parse the arguments later.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-07-12 16:40:14 +02:00
Cornelia Huck
6ab4879a0d [S390] subchannel register/unregister mutex.
Add a reg_mutex to prevent unregistering a subchannel before it has been
registered. Since 2.6.17, we've seen oopses in kslowcrw when a device is
found to be not operational during sense id when doing initial device
recognition; it is not clear yet why that particular problem was not (yet)
observed with earlier kernels...

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-07-12 16:39:50 +02:00
Dave Jones
68e3c5e3b5 [PATCH] s390: broken null test in claw driver
Whoops, better hope this never gets passed a null dev in its current state.

Signed-off-by: Dave Jones <davej@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Michael Holzheu <holzheu@de.ibm.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-10 13:24:25 -07:00
Dave Jones
f1c0a578ca [PATCH] fix oddball boolean logic in s390 netiucv
Signed-off-by: Dave Jones <davej@redhat.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Andreas Herrmann <aherrman@de.ibm.com>
Cc: Michael Holzheu <holzheu@de.ibm.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-10 13:24:25 -07:00
Serge E. Hallyn
9c4b9a9b55 [PATCH] s390: move var declarations behind ifdef
Two variables in drivers/s390/net/qeth_main.c:qeth_send_packet() are only
used if CONFIG_QETH_PERF_STATS.  Move their definition under the same ifdef
to remove compiler warning.

Signed-off-by: Serge Hallyn <serue@us.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-10 13:24:24 -07:00
Herbert Xu
89114afd43 [NET] gso: Add skb_is_gso
This patch adds the wrapper function skb_is_gso which can be used instead
of directly testing skb_shinfo(skb)->gso_size.  This makes things a little
nicer and allows us to change the primary key for indicating whether an skb
is GSO (if we ever want to do that).

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-08 13:34:32 -07:00
Heiko Carstens
38c54ee8d5 [PATCH] zfcp: fix incorrect usage of fsf_req_list_lock
=================================
  [ INFO: inconsistent lock state ]
  ---------------------------------
  inconsistent {in-hardirq-W} -> {hardirq-on-W} usage.
  swapper/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
   (&adapter->fsf_req_list_lock){++..}, at: [<0000000000274486>] zfcp_qdio_reqid_check+0x46/0x178
  {in-hardirq-W} state was registered at:
    [<000000000005fb0c>] __lock_acquire+0xad8/0xed0
    [<00000000000604ae>] lock_acquire+0x9a/0xc8
    [<000000000035a326>] _spin_lock+0x4e/0x68
    [<0000000000274486>] zfcp_qdio_reqid_check+0x46/0x178
    [<000000000027469e>] zfcp_qdio_response_handler+0xe6/0x430
    [<0000000000219dd4>] tiqdio_thinint_handler+0xd20/0x213c
    [<000000000020229a>] do_adapter_IO+0xb2/0xc0
    [<0000000000206f32>] do_IRQ+0x136/0x16c
    [<0000000000020462>] io_no_vtime+0x16/0x1c
    [<0000000000019432>] cpu_idle+0x222/0x250
  irq event stamp: 129220
  hardirqs last  enabled at (129220): [<00000000000411e6>] tasklet_hi_action+0x5a/0x19c
  hardirqs last disabled at (129219): [<00000000000411c0>] tasklet_hi_action+0x34/0x19c
  softirqs last  enabled at (129212): [<0000000000040b62>] __do_softirq+0x13a/0x180
  softirqs last disabled at (129217): [<000000000001fd58>] do_softirq+0xec/0xf0

  other info that might help us debug this:
  no locks held by swapper/0.

  stack backtrace:
  00000000012bb670 0000000000000002 0000000000000000 00000000012bb780
         00000000012bb6e8 0000000000399122 0000000000399122 0000000000016b0a
         0000000000000000 0000000000000000 0000000000000000 00000000004660e8
         0000000000000000 000000000000000d 00000000012bb6e0 00000000012bb758
         0000000000368b90 0000000000016b0a 00000000012bb6e0 00000000012bb730
  Call Trace:
  ([<0000000000016a26>] show_trace+0x76/0xdc)
   [<0000000000016b2c>] show_stack+0xa0/0xd0
   [<0000000000016b8a>] dump_stack+0x2e/0x3c
   [<000000000005e3da>] print_usage_bug+0x27e/0x290
   [<000000000005ea9c>] mark_lock+0x6b0/0x6c0
   [<000000000005f33e>] __lock_acquire+0x30a/0xed0
   [<00000000000604ae>] lock_acquire+0x9a/0xc8
   [<000000000035a326>] _spin_lock+0x4e/0x68
   [<0000000000274486>] zfcp_qdio_reqid_check+0x46/0x178
   [<000000000027469e>] zfcp_qdio_response_handler+0xe6/0x430
   [<0000000000217bd2>] tiqdio_tl+0xd02/0x2120
   [<000000000004123a>] tasklet_hi_action+0xae/0x19c
   [<0000000000040ae4>] __do_softirq+0xbc/0x180
   [<000000000001fd58>] do_softirq+0xec/0xf0
   [<0000000000040c38>] irq_exit+0x90/0xa8
   [<0000000000206f40>] do_IRQ+0x144/0x16c
   [<0000000000020462>] io_no_vtime+0x16/0x1c
   [<0000000000019432>] cpu_idle+0x222/0x250
  ([<0000000000019416>] cpu_idle+0x206/0x250)
   [<000000000001405a>] rest_init+0x5a/0x68
   [<0000000000536998>] start_kernel+0x39c/0x3dc
   [<0000000000013046>] _stext+0x46/0x1000

Fix incorrect usage of fsf_req_list_lock. It's used in tasklet context
(irqs on) as well as in irq context. Therefore use the spin_lock_irqsave
variant to avoid deadlocks.

Acked-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-03 21:25:20 -07:00
Heiko Carstens
9f09c548e1 [PATCH] zfcp: fix incorrect usage of erp_lock
=================================
  [ INFO: inconsistent lock state ]
  ---------------------------------
  inconsistent {hardirq-on-W} -> {in-hardirq-W} usage.
  swapper/0 [HC1[1]:SC0[0]:HE0:SE1] takes:
   (&adapter->erp_lock){+-..}, at: [<000000000026c7f8>] zfcp_erp_async_handler+0x3c/0x70
  {hardirq-on-W} state was registered at:
    [<000000000005f33e>] __lock_acquire+0x30a/0xed0
    [<00000000000604ae>] lock_acquire+0x9a/0xc8
    [<000000000035a7ae>] _write_lock+0x4e/0x68
    [<000000000026d822>] zfcp_erp_adapter_strategy_generic+0x286/0xd94
    [<000000000026fd72>] zfcp_erp_strategy_do_action+0x91e/0x1a94
    [<0000000000271a3a>] zfcp_erp_thread+0x21a/0x1568
    [<0000000000019096>] kernel_thread_starter+0x6/0xc
    [<0000000000019090>] kernel_thread_starter+0x0/0xc
  irq event stamp: 12078
  hardirqs last  enabled at (12077): [<0000000000019416>] cpu_idle+0x206/0x250
  hardirqs last disabled at (12078): [<0000000000020458>] io_no_vtime+0xc/0x1c
  softirqs last  enabled at (12072): [<0000000000040b62>] __do_softirq+0x13a/0x180
  softirqs last disabled at (12059): [<000000000001fd58>] do_softirq+0xec/0xf0

  other info that might help us debug this:
  no locks held by swapper/0.

  stack backtrace:
  00000000012bb648 0000000000000002 0000000000000000 00000000012bb758
         00000000012bb6c0 0000000000399122 0000000000399122 0000000000016b0a
         0000000000000000 0000000000000001 0000000000000000 00000000004660e8
         0000000000000000 000000000000000d 00000000012bb6b8 00000000012bb730
         0000000000368b90 0000000000016b0a 00000000012bb6b8 00000000012bb708
  Call Trace:
  ([<0000000000016a26>] show_trace+0x76/0xdc)
   [<0000000000016b2c>] show_stack+0xa0/0xd0
   [<0000000000016b8a>] dump_stack+0x2e/0x3c
   [<000000000005e3da>] print_usage_bug+0x27e/0x290
   [<000000000005e934>] mark_lock+0x548/0x6c0
   [<000000000005fb0c>] __lock_acquire+0xad8/0xed0
   [<00000000000604ae>] lock_acquire+0x9a/0xc8
   [<000000000035a662>] _write_lock_irqsave+0x62/0x80
   [<000000000026c7f8>] zfcp_erp_async_handler+0x3c/0x70
   [<0000000000279178>] zfcp_fsf_req_dispatch+0xd8/0x1fa8
   [<000000000027e538>] zfcp_fsf_req_complete+0x104/0xe4c
   [<0000000000274534>] zfcp_qdio_reqid_check+0xf4/0x178
   [<000000000027469e>] zfcp_qdio_response_handler+0xe6/0x430
   [<0000000000219dd4>] tiqdio_thinint_handler+0xd20/0x213c
   [<000000000020229a>] do_adapter_IO+0xb2/0xc0
   [<0000000000206f32>] do_IRQ+0x136/0x16c
   [<0000000000020462>] io_no_vtime+0x16/0x1c
   [<0000000000019432>] cpu_idle+0x222/0x250
  ([<0000000000019416>] cpu_idle+0x206/0x250)
   [<000000000001405a>] rest_init+0x5a/0x68
   [<0000000000536998>] start_kernel+0x39c/0x3dc
   [<0000000000013046>] _stext+0x46/0x1000

Fix incorrect usage of erp_lock. Using the write_lock() variant is wrong,
since this might lead to deadlocks.

Acked-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-03 21:25:20 -07:00
Heiko Carstens
91ebe2a932 [PATCH] lockdep: annotate qeth driver
Annotate the qeth driver which uses a private skb-queue-head that is safely
used in hardirq context too.

Has no effect on non-lockdep kernels.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-03 15:27:09 -07:00
Heiko Carstens
8e9ccae6ee [PATCH] lockdep: s390 turn validator off in machine-check handler
Machine checks on s390 are always enabled (except in the machine check handler
itself).  Therefore use lockdep_off()/on() in the machine check handler to
avoid deadlocks in the lock validator.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-03 15:27:05 -07:00
Heiko Carstens
1f194a4c39 [PATCH] lockdep: irqtrace subsystem, s390 support
irqtrace support for s390.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-03 15:27:03 -07:00
Jörn Engel
6ab3d5624e Remove obsolete #include <linux/config.h>
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30 19:25:36 +02:00
Linus Torvalds
602cada851 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6: (22 commits)
  [PATCH] devfs: Remove it from the feature_removal.txt file
  [PATCH] devfs: Last little devfs cleanups throughout the kernel tree.
  [PATCH] devfs: Rename TTY_DRIVER_NO_DEVFS to TTY_DRIVER_DYNAMIC_DEV
  [PATCH] devfs: Remove the tty_driver devfs_name field as it's no longer needed
  [PATCH] devfs: Remove the line_driver devfs_name field as it's no longer needed
  [PATCH] devfs: Remove the videodevice devfs_name field as it's no longer needed
  [PATCH] devfs: Remove the gendisk devfs_name field as it's no longer needed
  [PATCH] devfs: Remove the miscdevice devfs_name field as it's no longer needed
  [PATCH] devfs: Remove the devfs_fs_kernel.h file from the tree
  [PATCH] devfs: Remove devfs_remove() function from the kernel tree
  [PATCH] devfs: Remove devfs_mk_cdev() function from the kernel tree
  [PATCH] devfs: Remove devfs_mk_bdev() function from the kernel tree
  [PATCH] devfs: Remove devfs_mk_symlink() function from the kernel tree
  [PATCH] devfs: Remove devfs_mk_dir() function from the kernel tree
  [PATCH] devfs: Remove devfs_*_tape() functions from the kernel tree
  [PATCH] devfs: Remove devfs support from the sound subsystem
  [PATCH] devfs: Remove devfs support from the ide subsystem.
  [PATCH] devfs: Remove devfs support from the serial subsystem
  [PATCH] devfs: Remove devfs from the init code
  [PATCH] devfs: Remove devfs from the partition code
  ...
2006-06-29 14:19:21 -07:00
Cornelia Huck
94bb063312 [S390] rework of channel measurement facility.
Fixes for several channel measurement facility bugs:
* Blocks copied from the hardware might not be consistent. Solve this
  by moving the copying into idle state and repeating the copying.
* avg_sample_interval changed with every read, even though no new block
  was available. Solve this by storing a timestamp when the last new
  block was received.
* Several locking issues.
* Measurements were not reenabled after a disconnected device became
  available again.
* Remove #defines for ioctls that were never implemented.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29 15:08:41 +02:00
Horst Hummel
405455734e [S390] add PAV support to the dasd driver.
Add support for parallel-access-volumes to the dasd driver. This
allows concurrent access to dasd devices with multiple channel
programs.

Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29 15:08:18 +02:00
Cornelia Huck
b4f7b1ee57 [S390] cio chpid offline.
After setting a path to a dasd offline at the SE, I/O hangs on that
dasd for 5 minutes, then continues.
I/O for which an interrupt will not be reported after the channel
path has been disabled was not terminated by the common I/O layer,
causing the dasd MIH to hit after 5 minutes.

Be more aggressive in terminating I/O after setting a channel path
offline. Also make sure to generate a fake irb if the device
driver issues an I/O request after being notified of the killed
I/O and clear residual information from the irb before trying to
start the delayed verification.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29 15:03:35 +02:00
Serge E. Hallyn
84d11c5dcc Convert s390_collect_crw_info() in s390mach.c from being started
as a deprecated kernel_thread to a kthread.

Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29 15:03:17 +02:00
Stefan Weinhuber
774fc4ef71 [S390] dasd eer data format.
The struct dasd_eer_header needs the packed attribute, or there will
be 6 additional bytes of random data between the fixed header and
the variable length part of the eer data.

Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29 15:02:59 +02:00
Horst Hummel
138c014dcb [S390] dasd whitespace and other cosmetics.
Dasd code cleanup: 1) remove white space, 2) remove the emacs override
sections, and 3) use kzalloc instead of kmalloc.

Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29 14:58:12 +02:00
Horst Hummel
445b5b499e [S390] dasd_eckd_dump_sense bug.
The ccw dump function dasd_eckd_dump_ccw_range can crash because
it does not take care about the IDAL flag in the ccw.
Check for IDALs flag set in CCW and follow the indirect list to
print the data that is refered by the ccw.

Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29 14:57:52 +02:00
Stefan Weinhuber
f45a43d847 [S390] missing check in dasd_eer_open.
Check the return value of kzalloc in dasd_eer_open.

Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29 14:57:46 +02:00
Martin Schwidefsky
132fab1363 [S390] modular 3270 driver.
The initial i/o to a 3270 device is done using the static module variables
raw3270_init_data and raw3270_init_request. If the 3270 device driver is
built as a module and gets loaded above 2GB, the initial i/o will fail
because these variables will get addresses > 2GB. To make it work the
two variables are moved to struct raw3270 and the data structure is
allocated with GFP_DMA.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29 14:57:39 +02:00
Peter Oberparleiter
40154b8243 [S390] cio async subchannel reprobe.
Changes in the DASD driver require an asynchronous implementation of the
subchannel reprobe loop. This loop was so far only used by the blacklisting
mechanism but is now available to all CCW device drivers.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29 14:57:03 +02:00
Cornelia Huck
887ab59929 [S390] ccwgroup device unregister.
Work around the problem that a device cannot be unregistered from
driver_for_each_device() because of klist node refcounting: Get device
after device owned by the driver to be unregistered with driver_find_device()
and then unregister it. This works because driver_get_device() gets us out of
the region of the elevated klist node refcount. driver_find_device() will
always get the next device in the list after the found one has been
unregistered.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29 14:56:52 +02:00
Cornelia Huck
231caa1cac [S390] channel measurement fix.
Specify correct sizeof() in chp_measurement_read() and return
correct amount of read data.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29 14:56:45 +02:00
Peter Oberparleiter
da039bd1e8 [S390] cio long busy in read configuration data.
Trying to set a DASD root device online can fail under some circumstances
with the message "Read configuration data returned error -5". The cause
is that read configuration data incorrectly aborts with -EIO when it
encounters a temporary busy condition at a storage server.
Perform retry when encountering temporary busy conditions.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-06-29 14:56:38 +02:00
Ingo Molnar
34af946a22 [PATCH] spin/rwlock init cleanups
locking init cleanups:

 - convert " = SPIN_LOCK_UNLOCKED" to spin_lock_init() or DEFINE_SPINLOCK()
 - convert rwlocks in a similar manner

this patch was generated automatically.

Motivation:

 - cleanliness
 - lockdep needs control of lock initialization, which the open-coded
   variants do not give
 - it's also useful for -rt and for lock debugging in general

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:39 -07:00
Linus Torvalds
da206c9e68 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial:
  typo fixes
  Clean up 'inline is not at beginning' warnings for usb storage
  Storage class should be first
  i386: Trivial typo fixes
  ixj: make ixj_set_tone_off() static
  spelling fixes
  fix paniced->panicked typos
  Spelling fixes for Documentation/atomic_ops.txt
  move acknowledgment for Mark Adler to CREDITS
  remove the bouncing email address of David Campbell
2006-06-26 13:33:14 -07:00
Greg Kroah-Hartman
331b831983 [PATCH] devfs: Rename TTY_DRIVER_NO_DEVFS to TTY_DRIVER_DYNAMIC_DEV
I've always found this flag confusing.  Now that devfs is no longer around, it
has been renamed, and the documentation for when this flag should be used has
been updated.

Also fixes all drivers that use this flag.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-26 12:25:09 -07:00
Greg Kroah-Hartman
f4eaa37017 [PATCH] devfs: Remove the tty_driver devfs_name field as it's no longer needed
Also fixes all drivers that set this field.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-26 12:25:09 -07:00
Greg Kroah-Hartman
ce7b0f46bb [PATCH] devfs: Remove the gendisk devfs_name field as it's no longer needed
And remove the now unneeded number field.
Also fixes all drivers that set these fields.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-26 12:25:08 -07:00
Greg Kroah-Hartman
96192ff1a9 [PATCH] devfs: Remove the miscdevice devfs_name field as it's no longer needed
Also fixes all drivers that set this field.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-26 12:25:08 -07:00
Greg Kroah-Hartman
ff23eca3e8 [PATCH] devfs: Remove the devfs_fs_kernel.h file from the tree
Also fixes up all files that #include it.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-26 12:25:08 -07:00
Greg Kroah-Hartman
8ab5e4c15b [PATCH] devfs: Remove devfs_remove() function from the kernel tree
Removes the devfs_remove() function and all callers of it.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-26 12:25:07 -07:00
Greg Kroah-Hartman
95dc112a57 [PATCH] devfs: Remove devfs_mk_dir() function from the kernel tree
Removes the devfs_mk_dir() function and all callers of it.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-26 12:25:06 -07:00
Akinobu Mita
179e09172a [PATCH] drivers: use list_move()
This patch converts the combination of list_del(A) and list_add(A, B) to
list_move(A, B) under drivers/.

Acked-by: Corey Minyard <minyard@mvista.com>
Cc: Ben Collins <bcollins@debian.org>
Acked-by: Roland Dreier <rolandd@cisco.com>
Cc: Alasdair Kergon <dm-devel@redhat.com>
Cc: Gerd Knorr <kraxel@bytesex.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Frank Pavlic <fpavlic@de.ibm.com>
Acked-by: Matthew Wilcox <matthew@wil.cx>
Cc: Andrew Vasquez <linux-driver@qlogic.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-26 09:58:18 -07:00
Andreas Mohr
d6e05edc59 spelling fixes
acquired (aquired)
contiguous (contigious)
successful (succesful, succesfull)
surprise (suprise)
whether (weather)
some other misspellings

Signed-off-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-26 18:35:02 +02:00
Adrian Bunk
83cc5ed3c4 [PATCH] kernel/sys.c: cleanups
- proper prototypes for the following functions:
  - ctrl_alt_del()  (in include/linux/reboot.h)
  - getrusage()     (in include/linux/resource.h)
- make the following needlessly global functions static:
  - kernel_restart_prepare()
  - kernel_kexec()

[akpm@osdl.org: compile fix]
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-25 10:01:06 -07:00
Herbert Xu
7967168cef [NET]: Merge TSO/UFO fields in sk_buff
Having separate fields in sk_buff for TSO/UFO (tso_size/ufo_size) is not
going to scale if we add any more segmentation methods (e.g., DCCP).  So
let's merge them.

They were used to tell the protocol of a packet.  This function has been
subsumed by the new gso_type field.  This is essentially a set of netdev
feature bits (shifted by 16 bits) that are required to process a specific
skb.  As such it's easy to tell whether a given device can process a GSO
skb: you just have to and the gso_type field and the netdev's features
field.

I've made gso_type a conjunction.  The idea is that you have a base type
(e.g., SKB_GSO_TCPV4) that can be modified further to support new features.
For example, if we add a hardware TSO type that supports ECN, they would
declare NETIF_F_TSO | NETIF_F_TSO_ECN.  All TSO packets with CWR set would
have a gso_type of SKB_GSO_TCPV4 | SKB_GSO_TCPV4_ECN while all other TSO
packets would be SKB_GSO_TCPV4.  This means that only the CWR packets need
to be emulated in software.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-23 02:07:29 -07:00
Linus Torvalds
28e4b22495 Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (85 commits)
  [SCSI] 53c700: remove reliance on deprecated cmnd fields
  [SCSI] hptiop: don't use cmnd->bufflen
  [SCSI] hptiop: HighPoint RocketRAID 3xxx controller driver
  [SCSI] aacraid: small misc. cleanups
  [SCSI] aacraid: Update supported product information
  [SCSI] aacraid: Fix return code interpretation
  [SCSI] scsi_transport_sas: fix panic in sas_free_rphy
  [SCSI] remove RQ_SCSI_* flags
  [SCSI] remove scsi_request infrastructure
  [SCSI] mptfusion: change driver revision to 3.03.10
  [SCSI] mptfc: abort of board reset leaves port dead requiring reboot
  [SCSI] mptfc: fix fibre channel infinite request/response loop
  [SCSI] mptfc: set fibre channel fw target missing timers to one second
  [SCSI] mptfusion: move fc event/reset handling to mptfc
  [SCSI] spi transport: don't allow dt to be set on SE or HVD buses
  [SCSI] aic7xxx: expose the bus setting to sysfs
  [SCSI] scsi: remove Documentation/scsi/cpqfc.txt
  [SCSI] drivers/scsi: Use ARRAY_SIZE macro
  [SCSI] Remove last page_address from dc395x.c
  [SCSI] hptiop: HighPoint RocketRAID 3xxx controller driver
  ...

Fixed up conflicts in drivers/message/fusion/mptbase.c manually (due to
the sparc interrupt cleanups)
2006-06-21 11:18:25 -07:00
Linus Torvalds
cee4cca740 Merge git://git.infradead.org/hdrcleanup-2.6
* git://git.infradead.org/hdrcleanup-2.6: (63 commits)
  [S390] __FD_foo definitions.
  Switch to __s32 types in joystick.h instead of C99 types for consistency.
  Add <sys/types.h> to headers included for userspace in <linux/input.h>
  Move inclusion of <linux/compat.h> out of user scope in asm-x86_64/mtrr.h
  Remove struct fddi_statistics from user view in <linux/if_fddi.h>
  Move user-visible parts of drivers/s390/crypto/z90crypt.h to include/asm-s390
  Revert include/media changes: Mauro says those ioctls are only used in-kernel(!)
  Include <linux/types.h> and use __uXX types in <linux/cramfs_fs.h>
  Use __uXX types in <linux/i2o_dev.h>, include <linux/ioctl.h> too
  Remove private struct dx_hash_info from public view in <linux/ext3_fs.h>
  Include <linux/types.h> and use __uXX types in <linux/affs_hardblocks.h>
  Use __uXX types in <linux/divert.h> for struct divert_blk et al.
  Use __u32 for elf_addr_t in <asm-powerpc/elf.h>, not u32. It's user-visible.
  Remove PPP_FCS from user view in <linux/ppp_defs.h>, remove __P mess entirely
  Use __uXX types in user-visible structures in <linux/nbd.h>
  Don't use 'u32' in user-visible struct ip_conntrack_old_tuple.
  Use __uXX types for S390 DASD volume label definitions which are user-visible
  S390 BIODASDREADCMB ioctl should use __u64 not u64 type.
  Remove unneeded inclusion of <linux/time.h> from <linux/ufs_fs.h>
  Fix private integer types used in V4L2 ioctls.
  ...

Manually resolve conflict in include/linux/mtd/physmap.h
2006-06-20 15:10:08 -07:00
James Bottomley
f0cd91a68a Merge ../linux-2.6 2006-06-10 13:47:26 -05:00
Jeff Garzik
d15a88fc21 Merge branch 'master' into upstream 2006-06-08 15:24:46 -04:00
Peter Oberparleiter
4ae9538dd0 [PATCH] s390: cio non-unique path group ids
From: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>

The path grouping can fail due to non-unique pathgroup-IDs.  The source for
the CPU-ID part of the ID was incorrectly specified on 64 bit systems.
Additionally, the length of the ID was too large due to incorrect data packing
declaration.  Fix CPU-ID lowcore address and add missing packing declaration.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-05 12:29:16 -07:00
Cornelia Huck
e0ec574987 [PATCH] s390: irb memcpy argument swap
From: Cornelia Huck <cornelia.huck@de.ibm.com>

Swapped memcpy arguments in ccw_device_irq() when doing basic sense after
unsolicited interrupt.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-05 12:29:15 -07:00
Andreas Herrmann
93ef588735 [SCSI] zfcp: bump up version number
Bump up version number, skip "4.6.0" because this might
clash with zfcp version in certain distros.

Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-05-28 12:50:45 -04:00
Andreas Herrmann
338151e066 [SCSI] zfcp: make use of fc_remote_port_delete when target port is unavailable
If zfcp's port erp fails we now call fc_remote_port_delete. This helps
to avoid offlined scsi devices if scsi commands time out due to path
failures. When an adapter erp fails we call fc_remote_port_delete for
all ports on that adapter.

Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-05-28 12:50:17 -04:00
Ralph Wuerthner
75bfc2837b [SCSI] zfcp: evaluate plogi payload to set maxframe_size, supported_classes of rports
Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-05-28 12:45:15 -04:00
Ralph Wuerthner
b7a52fa7ff [SCSI] zfcp: print bit error threshold data human readable
Replace hex dump of bit error threshold data by log message showing
bit error threshold data human readable.

Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-05-28 12:43:59 -04:00
Andreas Herrmann
06506d00ec [SCSI] zfcp: (cleanup) removed superfluous macros, struct members, typedefs
Removed some macros, struct members and typedefs which were
unused or not necessary.

Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-05-28 12:43:33 -04:00
Andreas Herrmann
ec4081c6ba [SCSI] zfcp: (cleanup) kmalloc/kzalloc replacement
Replace kmalloc/memset by kzalloc or kcalloc.

Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-05-28 12:42:52 -04:00
Andreas Herrmann
ca3271b402 [SCSI] zfcp: (cleanup) remove useless comments
Removed some useless comments.

Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-05-28 12:38:15 -04:00
Andreas Herrmann
4a9d2d8bf9 [SCSI] zfcp: (cleanup) shortened copyright and author information
Copyright update, shortened file headers, shortened author information.

Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-05-28 12:36:02 -04:00
Jeff Garzik
983f27d37d Merge branch 'upstream-fixes' into upstream
Conflicts:

	drivers/s390/net/ctctty.c
2006-05-26 22:01:26 -04:00
Jeff Garzik
e82b0f2cc2 [netdrvr s/390] trim trailing whitespace
Previous fix patches added a bunch of trailing whitespace,
which git-applymbox complained loudly about.
2006-05-26 21:58:38 -04:00
Klaus Wacker
74ef872c8f [PATCH] s390: lcs driver bug fixes and improvements [2/2]
This is the second lcs driver patch containing the rest of lcs fixes.

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-05-26 21:57:45 -04:00
Klaus Wacker
27eb5ac8f0 [PATCH] s390: lcs driver bug fixes and improvements [1/2]
Several problems occured with lcs device driver:
	 - device not operational anymore after cable pull/plug-in.
       	 - unpredictable results occured, e.g. kernel panic
	   using cards of type QD8F.
	 - STOPLAN and delete multicast address command
           were not proper recognized by OSA card under heavy network workload.
       	 - channel/device error checks missing in interrupt handler.
	To fix all problems at once recovery of lcs devices has been improved.
	missing error checks in lcs interrupt handler has been added.
	Once a hardware problem occurs lcs will recover the device now properly.

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-05-26 21:57:45 -04:00
Ursula Braun
ba1aa084d6 [PATCH] s390: qeth driver fixes
From: Frank Blaschka <Frank.Blaschka@de.ibm.com>
From: Frank Pavlic <fpavlic@de.ibm.com>

        - fix fake_ll during initial device bringup. fake_ll was
	  not active after first start of the device.
	  Problem only occured when qeth was built without IPV6 support.
        - avoid skb usage after invocation of qeth_flush_buffers,
	  because skb might already be freed.
        - remove yet another useless netif_wake_queue in
	  qeth_softsetup_ipv6 since this function is only called
	  when device is going online. In this case card->state will
	  never be in state UP. So let the net_device queue down .

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-05-26 21:56:41 -04:00
Ursula Braun
b85e1fa196 [PATCH] s390: qeth driver fixes
From: Frank Pavlic <fpavlic@de.ibm.com>

	- correct checking of sscanf-%n value in qeth_string_to_ipaddr().
	- don't use netif_stop_queue outside the hard_start_xmit routine.
	  Rather use netif_tx_disable.
	- don't call qeth_netdev_init on a recovery.

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-05-26 21:56:40 -04:00
Cornelia Huck
7401a4670f [PATCH] s390: minor fix in cu3088
In case of a parse error for the cu3088 group attribute,
return -EINVAL instead of count.

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-05-26 21:56:40 -04:00
David Woodhouse
66643de455 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:

	include/asm-powerpc/unistd.h
	include/asm-sparc/unistd.h
	include/asm-sparc64/unistd.h

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-24 09:22:21 +01:00
Jeff Garzik
badc48e660 Merge branch 'master' into upstream 2006-05-20 00:03:38 -04:00
Greg Smith
698d070746 [PATCH] s390: lcs incorrect test
While debugging why our LCS emulator is having some problems I noticed the
following weirdness in drivers/s390/net/lcs.c routine lcs_irq.  The `if'
statement is always true since SCHN_STAT_PCI is defined as 0x80.

Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-15 11:20:55 -07:00
David Woodhouse
80b9192ee0 Move user-visible parts of drivers/s390/crypto/z90crypt.h to include/asm-s390
Also remove Bob Burroughs' email address, since it's no longer valid.

Acked-by: Eric D Rossman <edrossma@us.ibm.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-08 15:51:57 +01:00
Jeff Garzik
1fb5fef9b8 Merge branch 'master' into upstream 2006-05-02 14:33:57 -04:00
Heiko Carstens
022e4fc0fb [PATCH] s390: fix ipd handling
As pointed out by Paulo Marques <pmarques@grupopie.com> MAX_IPD_TIME is by
a factor of ten too small.  Since this means that we allow ten times more
IPDs in the intended time frame this could result in a cpu check stop of a
physical cpu.

Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-01 18:17:46 -07:00
Bastian Blank
235acec78e [PATCH] s390: make qeth buildable
Signed-off-by: Bastian Blank <bastian@waldi.eu.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Jeff Garzik <jeff@garzik.org>
Acked-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-01 18:17:42 -07:00
Horst Hummel
3d05259542 [PATCH] s390: dasd device identifiers
Generate new sysfs-attribute 'uid' that contains an device specific unique
identifier.  This can be used to identity multiple ALIASES of the same
physical device (PAV).  In addition the sysfs-attributes 'vendor' (containing
the manufacturer of the device) and 'alias' (identify alias or base device) is
added.  This is first part of PAV support in LPAR (also valid on zVM).

Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28 08:33:48 -07:00
Heiko Carstens
b73d40c617 [PATCH] s390: instruction processing damage handling
In case of an instruction processing damage (IPD) machine check in kernel mode
the resulting action is always to stop the kernel.  This is not necessarily
the best solution since a retry of the failing instruction might succeed.  Add
logic to retry the instruction if no more than 30 instruction processing
damage checks occured in the last 5 minutes.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28 08:33:48 -07:00
Stefan Bader
2cc924b8ba [PATCH] s390: tape 3590 changes
Added some changes that where proposed by Andrew Morton.  Added 3592 device
type.

Signed-off-by: Stefan Bader <shbader@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28 08:33:48 -07:00
Christian Borntraeger
40ac6b204c [PATCH] s390: fix slab debugging
With CONFIG_SLAB_DEBUG=y networking over qeth doesn't work.  The problem is
that the qib structure embedded in the qeth_irq structure needs an alignment
of 256 but kmalloc only guarantees an alignment of 8.  When using SLAB
debugging the alignment of qeth_irq is not sufficient for the embedded qib
structure which causes all users of qdio (qeth and zfcp) to stop working.
Allocate qeth_irq structure with __get_free_page.  That wastes a small amount
of memory (~2500 bytes) per online adapter.

Signed-off-by: Christian Borntraeger <cborntra@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28 08:33:48 -07:00
Horst Hummel
39ccf95e28 [PATCH] s390: dasd ioctl never returns
The dasd state machine is not designed to enable an unformatted device, since
'unformatted' is a final state.  The BIODASDENABLE ioctl calls
dasd_enable_device() which never returns if the device is in this special
state.  Return -EPERM in dasd_increase_state for unformatted devices to make
dasd_enable_device terminate.  Note: To get such an unformatted device online
it has to be re-analyzed.  This means that the device needs to be disabled
prior to re-enablement.

Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28 08:33:48 -07:00
Andreas Herrmann
a3ae39c060 [PATCH] s390: qdio memory allocations
Avoid memory allocation with GFP_KERNEL in qdio_establish/qdio_shutdown.  Use
memory pool instead.  (Otherwise this can lead to an I/O stall where qdio
waits for a free page and zfcp waits for end of error recovery in low memory
situations.)

Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28 08:33:47 -07:00
Stefan Bader
6dcfca78d4 [PATCH] s390: enable interrupts on error path
Interrupts can stay disabled if an error occurred in _chp_add().  Use
spin_unlock_irq on the error paths to reenable interrupts.

Signed-off-by: Stefan Bader <shbader@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28 08:33:47 -07:00
Peter Oberparleiter
329b785bce [PATCH] s390: fix I/O termination race in cio
Fix a race condition in the I/O termination logic.  The race can cause I/O to
a dasd device to fail with no retry left after turning one channel path to the
device off and on multiple times.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-28 08:33:47 -07:00
Frank Pavlic
5ad05b9900 [PATCH] s390: remove tty support from ctc network device driver [2/2]
Hi,
here comes the second of the two patches ...

Frank

From: Peter Tiedemann <ptiedem@de.ibm.com>
        [2/2]: remove ctctty.c and ctctty.h files .

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-04-20 17:27:54 -04:00
Frank Pavlic
56347a2e72 [PATCH] s390: remove tty support from ctc network device driver [1/2]
Hi jeff,
after the first shot I sent to you did not apply I
resend  two new patches I've made today to remove tty from ctc network driver.
Please apply ....

Thank you ...

Frank

From: Peter Tiedemann <ptiedem@de.ibm.com>
        [1/2]:
        tty support code will be removed from the ctc network device driver.
        Today we have a couple of alternatives which are performing much
        better. The second thing is that ctc should be a network
        device driver only.
        We should not mix tty and networking here.
        This first patch will remove the tty code from ctcmain.c .
        It also removes the build entry from the Makefile as well as TTY
        definitions from ctcmain.h.
        The second patch will remove two files, ctctty.c and ctctty.h.

Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-04-20 17:27:54 -04:00
Peter Oberparleiter
f976069a3a [PATCH] s390: minor tape fixes
Cleanup of minor bugs found by a source code checker.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11 06:18:38 -07:00
Horst Hummel
7220fe8b79 [PATCH] s390: dasd proc entries
The proc_mkdir calls in the dasd driver are not check for NULL pointers.  Add
code to check the pointers and bail out if one of the proc entries could not
be created.

Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11 06:18:38 -07:00
Peter Oberparleiter
25ee4cf831 [PATCH] s390: fail-fast requests on quiesced devices
Using the fail-fast flag in i/o requests on a dasd disk which has been
quiesced leads to kernel panics.  Modify the request start function to only
work on requests in a valid state.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11 06:18:38 -07:00
Horst Hummel
dafd87aaef [PATCH] s390: dasd device offline messages
The dasd driver sometimes print the misleading message "Can't offline dasd
device with open count = 0".  The reason why it can't offline the device in
this case is that the device is still in the startup phase.  Print a more
meaningful message.

Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11 06:18:38 -07:00
Peter Oberparleiter
06fbcb104a [PATCH] s390: increase cio_trace debug event size
Debugging events in cio_trace/hex_ascii are truncated for some trace entries.
Increase trace event size to 16 bytes to cover longer text events, make
CIO_HEX_EVENT an inline function that loops to cover bigger hex events.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11 06:18:37 -07:00
Cornelia Huck
a7fbf6bba7 [PATCH] s390: wrong return codes in cio_ignore_proc_init()
cio_ignore_proc_init() returns 1 in case of success and 0 in case of failure.
The caller tests for != 0, so better return 0 in case of success and -ENOENT
in case of failure.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11 06:18:37 -07:00
Peter Oberparleiter
da074d0ac8 [PATCH] s390: invalid check after kzalloc()
Typo.  After the call to kzalloc() for kdb->key_maps the test for NULL checks
the wrong variable.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11 06:18:37 -07:00
Eric Sesterhenn
7e99e9b663 BUG_ON() Conversion in drivers/s390/net/lcs.c
this changes if() BUG(); constructs to BUG_ON() which is
cleaner, contains unlikely() and can better optimized away.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-02 13:50:14 +02:00
Eric Sesterhenn
3a8dc8930e BUG_ON() Conversion in drivers/s390/char/tape_block.c
this changes if() BUG(); constructs to BUG_ON() which is
cleaner, contains unlikely() and can better optimized away.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-01 01:28:11 +02:00
Eric Sesterhenn
e048a8a688 BUG_ON() Conversion in drivers/s390/block/dasd_erp.c
this changes if() BUG(); constructs to BUG_ON() which is
cleaner, contains unlikely() and can better optimized away.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-01 01:27:08 +02:00
Adrian Bunk
58ef2c4ce3 typos: s/ducument/document/
s/ducument/document/

Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-01 01:04:59 +02:00
Linus Torvalds
9ae21d1bb3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial:
  drivers/char/ftape/lowlevel/fdc-io.c: Correct a comment
  Kconfig help: MTD_JEDECPROBE already supports Intel
  Remove ugly debugging stuff
  do_mounts.c: Minor ROOT_DEV comment cleanup
  BUG_ON() Conversion in drivers/s390/block/dasd_devmap.c
  BUG_ON() Conversion in mm/mempool.c
  BUG_ON() Conversion in mm/memory.c
  BUG_ON() Conversion in kernel/fork.c
  BUG_ON() Conversion in ipc/sem.c
  BUG_ON() Conversion in fs/ext2/
  BUG_ON() Conversion in fs/hfs/
  BUG_ON() Conversion in fs/dcache.c
  BUG_ON() Conversion in fs/buffer.c
  BUG_ON() Conversion in input/serio/hp_sdc_mlc.c
  BUG_ON() Conversion in md/dm-table.c
  BUG_ON() Conversion in md/dm-path-selector.c
  BUG_ON() Conversion in drivers/isdn
  BUG_ON() Conversion in drivers/char
  BUG_ON() Conversion in drivers/mtd/
2006-03-26 09:41:18 -08:00
Matthew Dobson
0eaae62aba [PATCH] mempool: use common mempool kmalloc allocator
This patch changes several mempool users, all of which are basically just
wrappers around kmalloc(), to use the common mempool_kmalloc/kfree, rather
than their own wrapper function, removing a bunch of duplicated code.

Signed-off-by: Matthew Dobson <colpatch@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26 08:56:59 -08:00
Ingo Molnar
14cc3e2b63 [PATCH] sem2mutex: misc static one-file mutexes
Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Dave Jones <davej@codemonkey.org.uk>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jens Axboe <axboe@suse.de>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Acked-by: Alasdair G Kergon <agk@redhat.com>
Cc: Greg KH <greg@kroah.com>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Adam Belay <ambx1@neo.rr.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26 08:56:55 -08:00
Eric Sesterhenn
606f44228e BUG_ON() Conversion in drivers/s390/block/dasd_devmap.c
this changes if() BUG(); constructs to BUG_ON() which is
cleaner, contains unlikely() and can better optimized away.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-03-26 18:33:07 +02:00
Linus Torvalds
1e8c573933 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (21 commits)
  BUG_ON() Conversion in drivers/video/
  BUG_ON() Conversion in drivers/parisc/
  BUG_ON() Conversion in drivers/block/
  BUG_ON() Conversion in sound/sparc/cs4231.c
  BUG_ON() Conversion in drivers/s390/block/dasd.c
  BUG_ON() Conversion in lib/swiotlb.c
  BUG_ON() Conversion in kernel/cpu.c
  BUG_ON() Conversion in ipc/msg.c
  BUG_ON() Conversion in block/elevator.c
  BUG_ON() Conversion in fs/coda/
  BUG_ON() Conversion in fs/binfmt_elf_fdpic.c
  BUG_ON() Conversion in input/serio/hil_mlc.c
  BUG_ON() Conversion in md/dm-hw-handler.c
  BUG_ON() Conversion in md/bitmap.c
  The comment describing how MS_ASYNC works in msync.c is confusing
  rcu: undeclared variable used in documentation
  fix typos "wich" -> "which"
  typo patch for fs/ufs/super.c
  Fix simple typos
  tabify drivers/char/Makefile
  ...
2006-03-25 08:41:09 -08:00
Rusty Russell
8d3b33f67f [PATCH] Remove MODULE_PARM
MODULE_PARM was actually breaking: recent gcc version optimize them out as
unused.  It's time to replace the last users, which are generally in the
most unloved drivers anyway.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:52 -08:00
Eric Sesterhenn
7ac1e877d4 BUG_ON() Conversion in drivers/s390/block/dasd.c
this changes if() BUG(); constructs to BUG_ON() which is
cleaner, contains unlikely() and can better optimized away.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-03-24 18:48:13 +01:00
Bastian Blank
b5029622ac [PATCH] dasd: "cleanup dasd_ioctl" fix
Cast the argument correctly.

Cc: Christoph Hellwig <hch@lst.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:18 -08:00
Eric Sesterhenn
88abaab4f9 [PATCH] s390: kzalloc() conversion in drivers/s390
Convert all kmalloc + memset sequences in drivers/s390 to kzalloc usage.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:18 -08:00
Eric Rossman
96641ee1e4 [PATCH] s390: CEX2A crt message length
Undetected edge case for CRT messages to CEX2A caused length to be too short,
thus truncating the message.  The solution was to check a different variable
which actually determines which key type is being used.

Increment version number in z90main.c to correct level of 1.3.3, fix copyright
year and add comment about bitlength limit of CEX2A.

Signed-off-by: Eric Rossman <edrossma@us.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:18 -08:00