Commit Graph

63838 Commits

Author SHA1 Message Date
Jeff Garzik
0ae842eaf9 Merge branch 'ucc_geth' of master.kernel.org:/pub/scm/linux/kernel/git/leo/fsl-soc into upstream-fixes 2007-08-07 17:19:44 -04:00
Neil Muller
8eb7ad68bd sis190 check for ISA bridge on SiS966
sis190 driver assumes to find ISA only on SiS965.
similar fix is in sis900 driver, see bug report
http://bugs.debian.org/435547

Signed-off-by: maximilian attems <max@stro.at>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-08-07 17:18:32 -04:00
Ingo Molnar
5845b677cf atl1: use spin_trylock_irqsave()
use the simpler spin_trylock_irqsave() API to get the adapter lock.

[ this is also a fix for -rt where adapter->lock is a sleeping lock. ]

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-08-07 17:18:32 -04:00
Paul Mundt
092ed997c0 net: smc91x: Build fixes for general sh boards.
SH boards in general only wire this up in 8 or 16-bit mode, and
as we never had the wrappers for 32-bit mode defined, SMC_CAN_USE_32BIT
caused build failure for the non-Solution Engine boards. This gets it
building again.

Also kill off the straggling set_irq_type() definition, this is left
over cruft that was missed when the rest of it switched to IRQ flags.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

--

 drivers/net/smc91x.h |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-08-07 17:18:31 -04:00
Trond Myklebust
4011cd9788 SUNRPC: Replace flush_workqueue() with cancel_work_sync() and friends
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-08-07 16:13:01 -04:00
Trond Myklebust
3d39c691ff NFS: Replace flush_scheduled_work with cancel_work_sync() and friends
This will avoid deadlocks of the form:

stack backtrace:
 [<c0104fda>] show_trace_log_lvl+0x1a/0x30
 [<c0105c02>] show_trace+0x12/0x20
 [<c0105d15>] dump_stack+0x15/0x20
 [<c013ee42>] __lock_acquire+0xc22/0x1030
 [<c013f2b1>] lock_acquire+0x61/0x80
 [<c012edd9>] flush_workqueue+0x49/0x70
 [<c012ee0d>] flush_scheduled_work+0xd/0x10
 [<dcf55c0c>] nfs_release_automount_timer+0x2c/0x30 [nfs]
 [<dcf45d8e>] nfs_free_server+0x9e/0xd0 [nfs]
 [<dcf4e626>] nfs_kill_super+0x16/0x20 [nfs]
 [<c017b38d>] deactivate_super+0x7d/0xa0
 [<c018f94b>] mntput_no_expire+0x4b/0x80
 [<c018fd94>] expire_mount_list+0xe4/0x140
 [<c0191219>] mark_mounts_for_expiry+0x99/0xb0
 [<dcf55d1d>] nfs_expire_automounts+0xd/0x40 [nfs]
 [<c012e61b>] run_workqueue+0x12b/0x1e0
 [<c012f05b>] worker_thread+0x9b/0x100
 [<c0131c72>] kthread+0x42/0x70
 [<c0104c0f>] kernel_thread_helper+0x7/0x18
 =======================

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-08-07 16:12:50 -04:00
Trond Myklebust
a4deb81ba8 SUNRPC: Don't call gss_delete_sec_context() from an rcu context
Doing so may not be safe...

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-08-07 15:16:24 -04:00
Trond Myklebust
905f8d16e3 NFSv4: Don't call put_rpccred() from an rcu callback
Doing so would require us to introduce bh-safe locks into put_rpccred().
This patch fixes the lockdep complaint reported by Marc Dietrich:

inconsistent {softirq-on-W} -> {in-softirq-W} usage.
swapper/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
 (rpc_credcache_lock){-+..}, at: [<c01dc487>]
_atomic_dec_and_lock+0x17/0x60
{softirq-on-W} state was registered at:
  [<c013e870>] __lock_acquire+0x650/0x1030
  [<c013f2b1>] lock_acquire+0x61/0x80
  [<c02db9ac>] _spin_lock+0x2c/0x40
  [<c01dc487>] _atomic_dec_and_lock+0x17/0x60
  [<dced55fd>] put_rpccred+0x5d/0x100 [sunrpc]
  [<dced56c1>] rpcauth_unbindcred+0x21/0x60 [sunrpc]
  [<dced3fd4>] a0 [sunrpc]
  [<dcecefe0>] rpc_call_sync+0x30/0x40 [sunrpc]
  [<dcedc73b>] rpcb_register+0xdb/0x180 [sunrpc]
  [<dced65b3>] svc_register+0x93/0x160 [sunrpc]
  [<dced6ebe>] __svc_create+0x1ee/0x220 [sunrpc]
  [<dced7053>] svc_create+0x13/0x20 [sunrpc]
  [<dcf6d722>] nfs_callback_up+0x82/0x120 [nfs]
  [<dcf48f36>] nfs_get_client+0x176/0x390 [nfs]
  [<dcf49181>] nfs4_set_client+0x31/0x190 [nfs]
  [<dcf49983>] nfs4_create_server+0x63/0x3b0 [nfs]
  [<dcf52426>] nfs4_get_sb+0x346/0x5b0 [nfs]
  [<c017b444>] vfs_kern_mount+0x94/0x110
  [<c0190a62>] do_mount+0x1f2/0x7d0
  [<c01910a6>] sys_mount+0x66/0xa0
  [<c0104046>] syscall_call+0x7/0xb
  [<ffffffff>] 0xffffffff
irq event stamp: 5277830
hardirqs last  enabled at (5277830): [<c017530a>] kmem_cache_free+0x8a/0xc0
hardirqs last disabled at (5277829): [<c01752d2>] kmem_cache_free+0x52/0xc0
softirqs last  enabled at (5277798): [<c0124173>] __do_softirq+0xa3/0xc0
softirqs last disabled at (5277817): [<c01241d7>] do_softirq+0x47/0x50

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

stack backtrace:
 [<c0104fda>] show_trace_log_lvl+0x1a/0x30
 [<c0105c02>] show_trace+0x12/0x20
 [<c0105d15>] dump_stack+0x15/0x20
 [<c013ccc3>] print_usage_bug+0x153/0x160
 [<c013d8b9>] mark_lock+0x449/0x620
 [<c013e824>] __lock_acquire+0x604/0x1030
 [<c013f2b1>] lock_acquire+0x61/0x80
 [<c02db9ac>] _spin_lock+0x2c/0x40
 [<c01dc487>] _atomic_dec_and_lock+0x17/0x60
 [<dced55fd>] put_rpccred+0x5d/0x100 [sunrpc]
 [<dcf6bf83>] nfs_free_delegation_callback+0x13/0x20 [nfs]
 [<c012f9ea>] __rcu_process_callbacks+0x6a/0x1c0
 [<c012fb52>] rcu_process_callbacks+0x12/0x30
 [<c0124218>] tasklet_action+0x38/0x80
 [<c0124125>] __do_softirq+0x55/0xc0
 [<c01241d7>] do_softirq+0x47/0x50
 [<c0124605>] irq_exit+0x35/0x40
 [<c0112463>] smp_apic_timer_interrupt+0x43/0x80
 [<c0104a77>] apic_timer_interrupt+0x33/0x38
 [<c02690df>] cpuidle_idle_call+0x6f/0x90
 [<c01023c3>] cpu_idle+0x43/0x70
 [<c02d8c27>] rest_init+0x47/0x50
 [<c03bcb6a>] start_kernel+0x22a/0x2b0
 [<00000000>] 0x0
 =======================

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-08-07 15:15:57 -04:00
Trond Myklebust
45328c354e NFS: Fix NFSv4 open stateid regressions
Do not allow cached open for O_RDONLY or O_WRONLY unless the file has been
previously opened in these modes.

Also Fix the calculation of the mode in nfs4_close_prepare. We should only
issue an OPEN_DOWNGRADE if we're sure that we will still be holding the
correct open modes. This may not be the case if we've been doing delegated
opens.

Finally, there is no need to adjust the open mode bit flags in
nfs4_close_done(): that has already been done in nfs4_close_prepare().

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-08-07 15:13:19 -04:00
Trond Myklebust
ba683031fa NFSv4: Fix a locking regression in nfs4_set_mode_locked()
We don't really need to clear &state->inode_states inside
nfs4_set_mode_locked, and doing so without holding the inode->i_lock would
in any case be a bug...

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-08-07 15:13:18 -04:00
Trond Myklebust
5e11934d13 NFS: Fix put_nfs_open_context
We need to grab the inode->i_lock atomically with the last reference put in
order to remove the open context that is being freed from the
nfsi->open_files list.

Fix by converting the kref to a standard atomic counter and then using
atomic_dec_and_lock()...

Thanks to Arnd Bergmann for pointing out the problem.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-08-07 15:13:17 -04:00
Trond Myklebust
b247bbf1da SUNRPC: Fix a race in rpciod_down()
The commit 4ada539ed7 lead to the unpleasant
possibility of an asynchronous rpc_task being required to call
rpciod_down() when it is complete. This again means that the rpciod
workqueue may get to call destroy_workqueue on itself -> hang...

Change rpciod_up/rpciod_down to just get/put the module, and then
create/destroy the workqueues on module load/unload.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-08-07 15:13:16 -04:00
Linus Torvalds
4a2a4df7b6 Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] rpc: update defconfig
  [ARM] pata_icside: fix the FIXMEs
  [ARM] 4542/1: AT91: include atmel_lcdc.h in at91sam926{1,3}_devices.c
  [ARM] 4541/1: iop: defconfig updates
  [ARM] 4531/1: remove is_in_rom() protptype
2007-08-06 18:31:43 -07:00
Linus Torvalds
f27eb3afe8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  [CRYPTO] api: fix writting into unallocated memory in setkey_aligned
2007-08-06 18:25:06 -07:00
Al Viro
6f605d83dd take sched_debug.c out of nasal demon territory
C99 6.10.3[11]: preprocessing directive within the argument list of
macro invocation => undefined behaviour.  Don't do that...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-06 18:22:27 -07:00
Rusty Russell
cc1ff43b70 Enable lguest drivers in Kconfig
Lguest drivers need to default to "Y" otherwise they're never selected
for new builds.  (We don't bother prompting, because they're less than
4k combined, and implied by selecting lguest support).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-06 18:21:15 -07:00
Avi Kivity
bac27d35cb KVM: x86 emulator: fix debug reg mov instructions
More fallout from the writeback fixes: debug register transfer
instructions do their own writeback and thus need to disable the general
writeback mechanism.

This fixes oopses and some guest failures on AMD machines (the Intel
variant decodes the instruction in hardware and thus does not need
emulation).

Cc: Alistair John Strachan <alistair@devzero.co.uk>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-06 17:54:41 -07:00
Linus Torvalds
9e865f58da Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [NETFILTER]: Add xt_statistic.h to the header list for usermode programs
  [BNX2]: Fix suspend/resume problem.
  [TG3]: Fix suspend/resume problem.
2007-08-06 17:52:56 -07:00
Linus Torvalds
111e2a513b Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC32]: Fix build.
2007-08-06 17:52:42 -07:00
Linus Torvalds
bced137384 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: (32 commits)
  [SCSI] aacraid: prevent panic on adapter resource failure
  [SCSI] aha152x: use data accessors and !use_sg cleanup
  [SCSI] aha152x: Fix check_condition code-path
  [SCSI] aha152x: Clean Reset path
  [SCSI] aha152x: preliminary fixes and some comments
  [SCSI] aha152x: use bounce buffer
  [SCSI] aha152x: fix debug mode symbol conflict
  [SCSI] sd: disentangle barriers in SCSI
  [SCSI] lpfc : scsi command accessor fix for 8.2.2
  [SCSI] qlogicpti: Some cosmetic changes
  [SCSI] lpfc 8.2.2 : Change version number to 8.2.2
  [SCSI] lpfc 8.2.2 : Style cleanups
  [SCSI] lpfc 8.2.2 : Miscellaneous Bug Fixes
  [SCSI] lpfc 8.2.2 : Miscellaneous management and logging mods
  [SCSI] lpfc 8.2.2 : Rework the lpfc_printf_log() macro
  [SCSI] lpfc 8.2.2 : Attribute and Parameter splits for vport and physical port
  [SCSI] lpfc 8.2.2 : Fix locking around HBA's port_list
  [SCSI] lpfc 8.2.2 : Error messages and debugfs updates
  [SCSI] initialize shost_data to zero
  [SCSI] mptsas: add SMP passthrough support via bsg
  ...
2007-08-06 17:48:34 -07:00
Dave Airlie
21f1628927 drm/i915: Fix i965 secured batchbuffer usage
This 965G and above chipsets moved the batch buffer non-secure bits to
another place. This means that previous drm's allowed in-secure batchbuffers
to be submitted to the hardware from non-privileged users who are logged
into X and and have access to direct rendering.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-06 17:46:23 -07:00
Francois Romieu
313b0305b5 r8169: avoid needless NAPI poll scheduling
Theory  : though needless, it should not have hurt.
Practice: it does not play nice with DEBUG_SHIRQ + LOCKDEP + UP
(see https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=242572).

The patch makes sense in itself but I should dig why it has an effect
on #242572 (assuming that NAPI do not change in a near future).

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Edward Hsu <edward_hsu@realtek.com.tw>
2007-08-07 00:07:36 +02:00
Roger So
2584fbc3a6 r8169: PHY power-on fix
Fix extracted from Realtek's driver (8.002.00/20070713) for the PHY
attached to 8111/8168b chipsets.

The check against mac_version is just usual paranoia during the bugfix
period of the kernel cycle. -- FR

Tested on Asus M2A-VM motherboard by Roger So.
No regression on my Asrock 945G DVI either (built-in 8168 + 2x8169).

Signed-off-by: Roger So <roger.so@gmail.com>
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Edward Hsu <edward_hsu@realtek.com.tw>
2007-08-06 23:58:02 +02:00
Daniel Drake
f27b62d3e7 [PATCH] mac80211: don't allow scanning in monitor mode
zd1211rw gets confused when the user asks for a scan when the device is
in monitor mode. This patch tightens up the SIWSCAN handler to deny the scan
under these conditions.

Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Jiri Benc <jbenc@suse.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-08-06 15:39:15 -04:00
Zhu Yi
ba9b07d08b [PATCH] mac80211: Fix sparse error for sta_last_seq_ctrl_read
Fix sparse error for sta_last_seq_ctrl_read.

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: Jiri Benc <jbenc@suse.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-08-06 15:39:01 -04:00
Zhu Yi
21887b2f18 [PATCH] mac80211: use do { } while (0) for multi-line macros
Use do { } while (0) for multi-line macros

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: Jiri Benc <jbenc@suse.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-08-06 15:38:48 -04:00
Daniel Drake
0e7088de6c [PATCH] mac80211: missing dev_put in ieee80211_master_start_xmit
Fixes an unlikely reference leak condition.

Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Jiri Benc <jbenc@suse.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-08-06 15:37:56 -04:00
Michael Buesch
fdc8f43b5e [PATCH] softmac: Fix deadlock of wx_set_essid with assoc work
The essid wireless extension does deadlock against the assoc mutex,
as we don't unlock the assoc mutex when flushing the workqueue, which
also holds the lock.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-08-06 15:06:03 -04:00
Ulrich Kunitz
69dad6e563 [PATCH] zd1211rw: fix filter for PSPOLL frames
While filling the control set the driver tests for a PSPOLL frame.
But it tested only the subtype of the packet. The full type needs
to be tested to identify those packets reliably.

[dsd@gentoo.org: backport to mainline]
Signed-off-by: Ulrich Kunitz <kune@deine-taler.de>
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-08-06 15:06:03 -04:00
Michael Wu
c43bff43e0 [PATCH] rtl8187: ensure priv->hwaddr is always valid
conf->mac_addr is not guaranteed to be set. This ensures priv->hwaddr is
always set to a valid mac address. Thanks to Johannes Berg
<johannes@sipsolutions.net> for finding this problem.

Signed-off-by: Michael Wu <flamingice@sourmilk.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-08-06 15:06:03 -04:00
Masakazu Mokuno
313b0d3d86 [PATCH] remove duplicated ioctl entries in compat_ioctl.c
This patch removes some duplicated wireless ioctl entries in the array
'struct ioctl_trans ioctl_start[]' of fs/compat_ioctl.c

These entries are registered twice like:

	COMPATIBLE_IOCTL(SIOCGIWPRIV)

and

	HANDLE_IOCTL(SIOCGIWPRIV, do_wireless_ioctl)

Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-08-06 15:06:03 -04:00
John W. Linville
829ef1f574 Revert "[PATCH] bcm43xx: Fix deviation from specifications in set_baseband_attenuation"
This reverts commit 77548f5807.

David Woodhouse wrote:

>This broke my shinybook. I seem to get absolutely _no_ outgoing packets,
>although I can receive OK.

Larry Finger wrote:

>Please revert this patch.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2007-08-06 14:41:59 -04:00
Russell King
6e7d934060 [ARM] rpc: update defconfig
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-08-06 16:48:49 +01:00
Russell King
eba84481c7 [ARM] pata_icside: fix the FIXMEs
Alan Cox suggested that the solution to the FIXMEs in pata_icside is
to use a private postreset method to detect the lack of devices on a
port, and in such a case, disable the interrupt for the port.

This patch implements such a method, and removes the hard coded
disable of port 0.  Tested as working.

Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-08-06 16:10:54 +01:00
Sebastian Siewior
0681717678 [CRYPTO] api: fix writting into unallocated memory in setkey_aligned
setkey_unaligned() commited in ca7c39385c
overwrites unallocated memory in the following memset() because
I used the wrong buffer length.

Signed-off-by: Sebastian Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2007-08-06 15:33:56 +08:00
Chuck Ebbert
be1b685fe6 [NETFILTER]: Add xt_statistic.h to the header list for usermode programs
Add xt_statistic.h to the list of headers to install.

Apparently needed to build newer versions of iptables.

Signed-off-by: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-04 21:18:16 -07:00
Mark Fortescue
c8154c8a9a [SPARC32]: Fix build.
Correct incorrect removal of asm-generic/fcntl.h from asm-sparc/fcntl.h by 
commit 6ba60d2195.

Signed-off-by: Mark Fortescue <mark@mtfhpc.demon.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-04 21:17:18 -07:00
Jan Altenberg
b8b786098b [ARM] 4542/1: AT91: include atmel_lcdc.h in at91sam926{1,3}_devices.c
- Include atmel_lcdc.h in at91sam926{1,3}_devices.c

Signed-off-by: Jan Altenberg <jan.altenberg@linutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-08-04 22:13:48 +01:00
Dan Williams
581cf23b51 [ARM] 4541/1: iop: defconfig updates
With the availability of the iop-adma driver iop platforms can now use
their offload engines for md-raid5 (copy+xor) and net-dma (tcp receive
copy) offload.

Cc: Lennert Buytenhek <kernel@wantstofly.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-08-04 22:13:47 +01:00
Greg Ungerer
0a8626a475 [ARM] 4531/1: remove is_in_rom() protptype
Remove unused is_in_rom() function prototype.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-08-04 22:13:43 +01:00
Salyzyn, Mark
2b053729a8 [SCSI] aacraid: prevent panic on adapter resource failure
If the driver fails to allocate the contiguous (DMAable) memory for
system reasons, we fail to load the instance, but then we try to free
the <nul> allocation in the cleanup code and we get a panic in
pci_free_consistent(). This is reported against an older kernel, hope
this is relevant for latest/greatest.

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-08-04 09:46:43 -05:00
Boaz Harrosh
2338545aaf [SCSI] aha152x: use data accessors and !use_sg cleanup
And finally this is the regular !use_sg cleanup
and use of data accessors.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-08-04 09:14:49 -05:00
Boaz Harrosh
45333ffa6f [SCSI] aha152x: Fix check_condition code-path
check_condition code-path was similar but more
complicated to Reset. It went like this:

  1. extra space was allocated at aha152x_scdata for mirroring
    scsi_cmnd members.
  2. At aha152x_internal_queue() every not check_condition
    (REQUEST_SENSE) command was copied to above members in
    case of error.
  3. At busfree_run() in the DONE_CS phase if a Status of
    SAM_STAT_CHECK_CONDITION was detected. The command was
    re-queued Internally using aha152x_internal_queue(,,check_condition,)
    The old command members are over written with the
    REQUEST_SENSE info.
  4. At busfree_run() in the DONE_CS phase again. If it is a
    check_condition command, info was restored from mirror
    made at first call to aha152x_internal_queue() (see 2)
    and the command is completed.

What I did is:

  1. Allocate less space in aha152x_scdata only for the 16-byte
    original command. (which is actually not needed by scsi-ml
    anymore at this stage. But this is to much knowledge of scsi-ml)
  2. If Status == SAM_STAT_CHECK_CONDITION, then like before
     re-queue a REQUEST_SENSE command. But only now save original
     command members. (Less of them)
  3. In aha152x_internal_queue(), just like for Reset, use the
    check_condition hint to set differently the working members.
    execute the command.
  4. At busfree_run() in the DONE_CS phase again. restore needed
     members.

While at it. This patch fixes a BUG. Old code when sending
a REQUEST_SENSE for a failed command. Would than return with
cmd->resid == 0 which was the status of the REQUEST_SENSE.
The failing command resid was lost. And when would resid
be interesting if not on a failing command?

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-08-04 09:14:24 -05:00
Boaz Harrosh
66acdb0309 [SCSI] aha152x: Clean Reset path
What Reset code was doing:  Save command's important/dangerous
Info on stack. NULL those members from scsi_cmnd.
Issue a Reset. wait for it to finish than restore members
and return.

What I do is save or NULL nothing. But use the "resetting"
hint in aha152x_internal_queue() to NULL out working members
and leave struct scsi_cmnd alone.

The indent here looks funny but it will change/drop in last
patch and it is clear this way what changed.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-08-04 09:13:28 -05:00
Boaz Harrosh
0ceb47987d [SCSI] aha152x: preliminary fixes and some comments
hunk by hunk:
  - CHECK_CONDITION is what happens to cmnd->status >> 1
    or after status_byte() macro. But here it is used
    directly on status which means 0x1 which is an undefined
    bit in the standard. And is a status that will never
    return from a target.

  - in busfree_run at the DONE_SC phase we have 3 distinct
    operation:
	1-if(DONE_SC->SCp.phase & check_condition)
          The REQUEST_SENSE command return.
          - Restore original command
	  - Than continue to operation 3.
	2-if(DONE_SC->SCp.Status==SAM_STAT_CHECK_CONDITION)
          A regular command returned with a status.
	  - Internally re-Q a REQUEST_SENSE.
	  - Do not do operation 3.
	3-
	  - Complete the command and return it to scsi-ml
     So the 0x2 in both these operations (1,2) means the scsi
     check-condition status, hence SAM_STAT_CHECK_CONDITION

  - Here the code asks about !(DONE_SC->SCp.Status & not_issued)
    but "not_issued" is an enum belonging to the "phase" member
    and not to the Status returned from target. The reason this
    works is because not_issued==1 and Also CHECK_CONDITION==1
    (remember from hunk 1). So actually the code was asking
    !(DONE_SC->SCp.Status & CHECK_CONDITION). Which means
    "Has the status been read from target yet?"
    Staus is read at status_run(). "not_issued" is
    cleared in seldo_run() which is usually earlier than
    status_run().

  So this patch does nothing as far as assembly is concerned
  but it does let the reader understand what is going on.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-08-04 09:12:48 -05:00
Boaz Harrosh
b1ee079527 [SCSI] aha152x: use bounce buffer
Cause highmem buffers to be bounced to low memory until this
driver supports highmem addresses.  Otherwise it just oopses
on NULL buffer addresses.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-08-04 09:11:38 -05:00
Boaz Harrosh
50535df3ee [SCSI] aha152x: fix debug mode symbol conflict
The symbol <debug_locks> conflicts with the rather global one in
include/linux/locks.h.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-08-04 09:11:06 -05:00
James Bottomley
03a5743a12 [SCSI] sd: disentangle barriers in SCSI
Our current implementation has a generic set of barrier functions that
go through the SCSI driver model.  Realistically, this is unnecessary,
because the only device that can use barriers (sd) can set the flush
functions up at probe or revalidate time.  This patch pulls the barrier
functions out of the mid layer and scsi driver model and relocates them
directly in sd.

Acked-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-08-04 08:37:04 -05:00
Michael Chan
6caebb0229 [BNX2]: Fix suspend/resume problem.
The device would not resume properly if it was shutdown before the system
was suspended.  In such scenario where the netif_running state is 0,
bnx2_suspend() would not save the PCI state and so the memory enable bit
and bus master enable bit would be lost.

We fix this by always saving and restoring the PCI state in
bnx2_suspend() and bnx2_resume() regardless of netif_running() state.

Update version to 1.6.4.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-03 20:57:25 -07:00
Michael Chan
3e0c95fd64 [TG3]: Fix suspend/resume problem.
Joachim Deguara <joachim.deguara@amd.com> reported that tg3 devices
would not resume properly if the device was shutdown before the system
was suspended.  In such scenario where the netif_running state is 0,
tg3_suspend() would not save the PCI state and so the memory enable bit
and bus master enable bit would be lost.

We fix this by always saving and restoring the PCI state in
tg3_suspend() and tg3_resume() regardless of netif_running() state.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-03 20:56:54 -07:00