Commit graph

135 commits

Author SHA1 Message Date
Brian King
65f5647544 [SCSI] ipr: Handle IOA reset request
In ipr dual adapter configurations, the ipr adapter firmware
may require an adapter reset for various reasons. The reset
is requested by the adapter firmware logging an error with
an IOASC of 0x02048000. Add support to log this error, and
reset the adapter.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-06 09:33:19 -05:00
Brian King
8a048994f4 [SCSI] ipr: Handle check condition status from disk array device
On newer levels of microcode for ipr RAID adapters supporting
multi-initiator configurations, the disk array, or VSET, resources
are capable of generating a check condition. This patch prevents
ipr from generating sense data in this scenario and retrieving it
from the logical device instead.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-06 09:33:19 -05:00
Brian King
6bb0417074 [SCSI] ipr: Handle UA on disk array following an adapter reset
On certain ipr RAID adapters, which are capable of multi-initiator
configurations, the disk array, or VSET, resources will be in a POR
Unit Attention state following an adapter reset. In order for the
midlayer to handle the UA, I must report a bus reset to the logical
disk array bus at the end of an adapter reset.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-06 09:33:19 -05:00
Brian King
68c96e5960 [SCSI] ipr: Allow driver_data to be passed for dynamic ids
Since driver_data for pci ids in the ipr driver is now
just flags, we can allow these to be passed in from userspace
for dynamic ids.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-06 09:33:18 -05:00
Brian King
970ea29411 [SCSI] ipr: Prevent overlapped adapter resets
This patch fixes some scenarios where an ipr adapter
could get reset overlapped, which could cause very
long timeouts to occur, or PCI bus errors.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-06 09:33:17 -05:00
Linus Torvalds
4f7a307dc6 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: (87 commits)
  [SCSI] fusion: fix domain validation loops
  [SCSI] qla2xxx: fix regression on sparc64
  [SCSI] modalias for scsi devices
  [SCSI] sg: cap reserved_size values at max_sectors
  [SCSI] BusLogic: stop using check_region
  [SCSI] tgt: fix rdma transfer bugs
  [SCSI] aacraid: fix aacraid not finding device
  [SCSI] aacraid: Correct SMC products in aacraid.txt
  [SCSI] scsi_error.c: Add EH Start Unit retry
  [SCSI] aacraid: [Fastboot] Panics for AACRAID driver during 'insmod' for kexec test.
  [SCSI] ipr: Driver version to 2.3.2
  [SCSI] ipr: Faster sg list fetch
  [SCSI] ipr: Return better qc_issue errors
  [SCSI] ipr: Disrupt device error
  [SCSI] ipr: Improve async error logging level control
  [SCSI] ipr: PCI unblock config access fix
  [SCSI] ipr: Fix for oops following SATA request sense
  [SCSI] ipr: Log error for SAS dual path switch
  [SCSI] ipr: Enable logging of debug error data for all devices
  [SCSI] ipr: Add new PCI-E IDs to device table
  ...
2007-05-05 13:30:44 -07:00
Andrew Morton
120bda35ff git-libata-all-ipr-fix
drivers/scsi/ipr.c: In function '__ipr_eh_dev_reset':
drivers/scsi/ipr.c:3865: warning: passing argument 4 of 'ata_do_eh' from incompatible pointer type

Cc: Tejun Heo <htejun@gmail.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 14:16:00 -04:00
Brian King
51b1c7e19e [SCSI] ipr: Faster sg list fetch
Improve overall command performance by embedding the scatterlist
in the command block used by the adapter. This decreases
the overall number of DMAs required for a single command.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-04-01 11:19:12 -05:00
Brian King
0feeed823a [SCSI] ipr: Return better qc_issue errors
If qc_issue fails for some reason, return a better error
to libata.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-04-01 11:18:56 -05:00
Brian King
e435340c4b [SCSI] ipr: Disrupt device error
Add entry in ipr error translation table for an error
received when a device is forced into the failed state
by the user.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-04-01 11:18:37 -05:00
Brian King
933916f365 [SCSI] ipr: Improve async error logging level control
Add the ability to control how much error data gets logged
on a per error basis.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-04-01 11:18:11 -05:00
Brian King
a9aedb0984 [SCSI] ipr: PCI unblock config access fix
Fix to make sure user config accesses get re-enabled if the
PCI config write to start BIST fails.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-04-01 11:17:42 -05:00
Brian King
24d6f2b50b [SCSI] ipr: Fix for oops following SATA request sense
This patch fixes a problem discovered on a system with some
bad SATA devices attached. If a command to a SATAPI device
times out and the device gets reset as part of error recovery,
its possible that ipr will set err_mask to indicate a device
error has occurred. If this happens, a request sense will get
issued by libata. Since scsi core thinks this scsi command is
now completed, because the device reset handler completed successfully,
scsi core will free the associated scsi command, which may
cause an oops when that request sense is completed later
by ipr. This patch ensures that any commands that get aborted
as a result of a device reset set err_mask appropriately so
that the request sense does not get sent.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-04-01 11:17:22 -05:00
Brian King
b0692dd4d7 [SCSI] ipr: Log error for SAS dual path switch
For ipr SAS adapters that support dual pathing, this
patch modifies ipr to log an error when a path fails.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-04-01 11:16:58 -05:00
Brian King
cc9bd5d425 [SCSI] ipr: Enable logging of debug error data for all devices
The ipr driver has a sysfs attribute which can be used to
adjust the logging level of the driver for error events.
The error response data for commands can be dumped by
increasing the logging level of the ipr driver. This
currently only works for JBOD passthrough devices.
This patch enables this function for all devices, including
RAID devices, to aid in debugging problems.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-04-01 11:16:34 -05:00
Brian King
185eb31cc2 [SCSI] ipr: Add new PCI-E IDs to device table
Adds support for some new PCI-E ipr adapters.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-04-01 11:16:14 -05:00
Brian King
7d2267bb9d [SCSI] ipr: Remove auto RAID create module parameter
Remove the auto RAID 0 array creation module parameter, since
support for this function has been removed from the firmware.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-04-01 11:15:45 -05:00
Brian King
5469cb5bde [SCSI] ipr: Make adapter operational timeout be per adapter type
Some ipr adapters may take longer than others to come operational.
This patch makes this timeout different for different adapters,
while still preserving the module parameter which can be used
to globally override the default.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-04-01 11:15:26 -05:00
Greg Kroah-Hartman
20ce791a0e [SCSI] ipr: remove duplicate device id
This patch removes a duplicate device id from the IPR driver.  Based on
the ipr.h file, I'm not so sure this was intended to be a duplicate, and
if so, the .h file should be modified to use the proper sub-device id
instead.

This was pointed out to me by Kay Sievers <kay.sievers@suse.de>

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-30 10:34:29 -06:00
Brian King
e619e1a7cb [SCSI] ipr: PCI error recovery fix
Since the pci_block_user_cfg_access API was modified to track
block/unblocks, it was discovered that the ipr driver had a
path through its code (in PCI error recovery) which would unblock
when not previously blocked.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-27 09:26:23 -06:00
Brian King
7dce0e1c84 [SCSI] ipr: Tolerate not finding PCI-X registers
Don't fail initialization of an adapter if the PCI-X registers
cannot be found since it may be a PCI-E adapter.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-27 09:26:08 -06:00
Brian King
6d84c944fa [SCSI] ipr: Remove usage of pci driver data
Since ipr handles dynamic ids, it must handle driver_data
not being set, so remove the current usage of driver_data
so it can be used for other things in future patches.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-01-27 09:25:52 -06:00
Christoph Lameter
e94b176609 [PATCH] slab: remove SLAB_KERNEL
SLAB_KERNEL is an alias of GFP_KERNEL.

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
David Howells
4796b71fbb Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:

	drivers/pcmcia/ds.c

Fix up merge failures with Linus's head and fix new compile failures.

Signed-Off-By: David Howells <dhowells@redhat.com>
2006-12-06 15:01:18 +00:00
Adrian Bunk
bd705f2d43 [SCSI] ipr: Make ipr_ioctl static
This patch makes ipr_ioctl static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-11-22 12:22:17 -06:00
Brian King
ac719abab0 [SCSI] ipr: Reduce default error log size
Since the default error log size has increased on SAS adapters,
prevent ipr from logging this additional data unless requested
to do so by the user set log level in order to prevent flooding
the logs.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-11-22 12:22:01 -06:00
Brian King
49dc6a1818 [SCSI] ipr: Add support for logging SAS fabric errors
Adds support for logging SAS fabric errors logged by
the ipr firmware.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-11-22 12:21:44 -06:00
Brian King
9d66bdf81f [SCSI] ipr: Remove debug trace points from dump code
Remove some debug trace points that clutter up the log
when ipr debugging is turned on.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-11-22 12:21:26 -06:00
Brian King
7402ecef94 [SCSI] ipr: Remove ipr_scsi_timed_out
Remove ipr's usage of the scsi transport eh_timed_out for
handling SATA timeouts. This was only needed in order to set
some flags on the qc prior to calling ata_do_eh.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-11-22 12:21:03 -06:00
Brian King
60e7486b19 [SCSI] ipr: PCI IDs for new SAS adapters
Adds PCI IDs for some new ipr SAS adapters.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-11-22 12:20:25 -06:00
Brian King
04d9768ff8 [SCSI] ipr: Stop issuing cancel all to disk arrays
The ipr disk array devices do not support a cancel all
requests primitive, so change the ipr driver to never
send it.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-11-22 12:20:08 -06:00
Brian King
73d98ff0fa [SCSI] ipr: SATA reset - wait for host reset completion
If an ipr adapter hits a fatal microcode error requiring a reset
while a SATA device is going through EH, it can result in a command
getting issued to the ipr adapter while it is getting reset, which
can cause PCI bus errors. Wait for any outstanding adapter reset
to finish prior to issuing a SATA device reset.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-11-22 12:17:55 -06:00
David Howells
c4028958b6 WorkStruct: make allyesconfig
Fix up for make allyesconfig.

Signed-Off-By: David Howells <dhowells@redhat.com>
2006-11-22 14:57:56 +00:00
David Howells
7d12e780e0 IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.

The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around.  On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).

Where appropriate, an arch may override the generic storage facility and do
something different with the variable.  On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.

Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions.  Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller.  A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.

I've build this code with allyesconfig for x86_64 and i386.  I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.

This will affect all archs.  Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

	struct pt_regs *old_regs = set_irq_regs(regs);

And put the old one back at the end:

	set_irq_regs(old_regs);

Don't pass regs through to generic_handle_irq() or __do_IRQ().

In timer_interrupt(), this sort of change will be necessary:

	-	update_process_times(user_mode(regs));
	-	profile_tick(CPU_PROFILING, regs);
	+	update_process_times(user_mode(get_irq_regs()));
	+	profile_tick(CPU_PROFILING);

I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().

Some notes on the interrupt handling in the drivers:

 (*) input_dev() is now gone entirely.  The regs pointer is no longer stored in
     the input_dev struct.

 (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking.  It does
     something different depending on whether it's been supplied with a regs
     pointer or not.

 (*) Various IRQ handler function pointers have been moved to type
     irq_handler_t.

Signed-Off-By: David Howells <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 15:10:12 +01:00
Eric Sesterhenn
a2a65a3ecb [SCSI] Signedness issue in drivers/scsi/ipr.c
gcc 4.1 with some extra warnings show the following:

drivers/scsi/ipr.c:6361: warning: comparison of unsigned expression < 0 is always false
drivers/scsi/ipr.c:6385: warning: comparison of unsigned expression < 0 is always false
drivers/scsi/ipr.c:6415: warning: comparison of unsigned expression < 0 is always false

The problem is that rc is of the type u32, which can never be smaller than
zero, therefore all three error handling checks get useless.  This patch
changes it to a normal int, because all usages / all functions it get used
with expect an int.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Acked-by: Brian King <brking@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-09-26 11:35:36 -07:00
Henrik Kretzschmar
dcbccbde00 [SCSI] pci_module_init conversion in scsi subsystem
Converts pci_module_init() to pci_register_driver() in the scsi subsys on
23 drivers which only return the value of pci_module_init().

Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-09-26 11:35:32 -07:00
Brian King
35a39691e4 [SCSI] ipr: Support attaching SATA devices
Adds support to attach SATA devices to ipr SAS adapters.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-09-26 09:23:18 -07:00
Brian King
117d2ce1ce [SCSI] ipr: Auto sense handling fix
Fix up a logic error in the checking for valid sense data.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-08-06 15:50:50 -05:00
Brian King
5b7304fbfb [SCSI] ipr: Properly handle IOA recovered errors
The ipr driver currently translates adapter recovered errors
to DID_ERROR. This patch fixes this to translate these
errors to success instead.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-08-06 15:50:19 -05:00
Brian King
896bbd2140 [SCSI] ipr: Handle new SAS error codes
Add definitions for some SAS error codes that can be
logged by ipr SAS adapters.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-08-06 15:49:57 -05:00
Thomas Gleixner
1d6f359a2e [PATCH] irq-flags: scsi: Use the new IRQF_ constants
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-02 13:58:53 -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
Christoph Hellwig
beb4048750 [SCSI] remove scsi_request infrastructure
With Achim patch the last user (gdth) is switched away from scsi_request
so we an kill it now.  Also disables some code in i2o_scsi that was
broken since the sg driver stopped using scsi_requests.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-06-10 16:24:40 -05:00
Brian King
c651309671 [SCSI] ipr: Reset device cleanup
Encapsulate some more of the device reset processing in
preparation for SATA support.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-04-13 10:13:29 -05:00
Brian King
fb3ed3cb4b [SCSI] ipr: printk macro cleanup/removal
Remove some unused printk macros, make some more robust, and
convert some to use standard printk macros when possible.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-04-13 10:13:29 -05:00
Brian King
fe964d0a4b [SCSI] ipr: Simplify status area dumping
Simplify the dumping of the command status area by
removing some device specific information that has proven
to not be worthwhile.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-04-13 10:13:28 -05:00
Brian King
e4fbf44ed0 [SCSI] ipr: Fixup device type check
Fixup a check used by the ipr driver to determine if a given
device is a SCSI disk. Due to the addition of support for
attaching SATA devices, this check needs to be more robust.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-04-13 10:13:28 -05:00
Brian King
1121b794a3 [SCSI] ipr: Disk remove path cleanup
Instead of NULLing the resource entry pointer when a disk
goes away to prevent any new commands being sent to it,
set the adapter resource handle to an invalid value so
new ops getting sent to it will fail with a selection timeout
response. This patch is needed for future SATA patches.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-04-13 10:13:28 -05:00
Linas Vepstas
f8a88b19b9 [SCSI] PCI Error Recovery: IPR SCSI device driver
Various PCI bus errors can be signaled by newer PCI controllers.  This
patch adds the PCI error recovery callbacks to the IPR SCSI device driver.
The patch has been tested, and appears to work well.

Signed-off-by: Linas Vepstas <linas@linas.org>
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 22:55:05 -06:00
Brian King
4733804c9f [SCSI] ipr: Fix adapter initialization failure
Since scsi core is always sending scatterlists now, remove
some code which was written with the bad assumption that
a small transfer would not be sent down in a scatterlist.
Without this fix, the ipr driver ends up sending garbage
data to the adapter following a reset, causing it to
fail the reset and take the adapter offline.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-12 11:05:44 -06:00
Linus Torvalds
db9edfd7e3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6
Trivial manual merge fixup for usb_find_interface clashes.
2006-01-04 18:44:12 -08:00
Kay Sievers
312c004d36 [PATCH] driver core: replace "hotplug" by "uevent"
Leave the overloaded "hotplug" word to susbsystems which are handling
real devices. The driver core does not "plug" anything, it just exports
the state to userspace and generates events.

Signed-off-by: Kay Sievers <kay.sievers@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-04 16:18:08 -08:00
Kay Sievers
5f123fbd80 [PATCH] merge kobject_uevent and kobject_hotplug
The distinction between hotplug and uevent does not make sense these
days, netlink events are the default.

udev depends entirely on netlink uevents. Only during early boot and
in initramfs, /sbin/hotplug is needed. So merge the two functions and
provide only one interface without all the options.

The netlink layer got a nice generic interface with named slots
recently, which is probably a better facility to plug events for
subsystem specific events.
Also the new poll() interface to /proc/mounts is a nicer way to
notify about changes than sending events through the core.
The uevents should only be used for driver core related requests to
userspace now.

Signed-off-by: Kay Sievers <kay.sievers@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-04 16:18:07 -08:00
brking@us.ibm.com
ce155ccecd [SCSI] ipr: Driver initialization fix for kexec/kdump
When kexec booting a kernel when the previous kernel did not
call ipr's shutdown method, the ipr adapter does not get
properly initialized, which can result in the ipr adapter
completing commands issued by the previous kernel. Fix ipr
to detect this scenario by reading the adapter's interrupt
mask register and the microprocessor interrupt register.
If the interrupt mask register indicates that interrupts
are enabled or the reset alert bit is set when the card is
probed, this means the card is in an unknown state and we
hard reset the card.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-12-13 18:10:58 -07:00
brking@us.ibm.com
dfed823eab [SCSI] ipr: Better handle failure of adapter bringup commands
Some new ipr adapters do not support some of the initialization
commands currently sent to it from the driver. Handle these
commands failing and continue on with the adapter initialization.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 13:12:56 -06:00
brking@us.ibm.com
86f51436dd [SCSI] ipr: New PCI Ids
Adds support for some new ipr adapters

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 13:12:10 -06:00
brking@us.ibm.com
eeb88307aa [SCSI] ipr: Support device reset to RAID disks
Support now exists in some ipr adapters to issue a device reset
to an Advanced Function disk.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 13:11:14 -06:00
brking@us.ibm.com
ee0a90fa3e [SCSI] ipr: Support new device queueing model
New ipr adapters support a new device queueing model in the
adapter firmware. The queueing model is the NACA queueing model,
but it does not mean use of NACA is required. The new model removes
some of the adapter firmware queue state that made handling QERR=0
almost impossible. The queueing model on older adapters included the
concept of a queue frozen state, which would freeze the response
queue in the adapter when a check condition occurred, requiring a
a primitive to resume the queue. The new queueing model removes this
complexity.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 13:09:47 -06:00
brking@us.ibm.com
ee0f05b863 [SCSI] ipr: New adapter error types
Handle some new types of ipr errors that can be returned by the adapter.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 13:09:22 -06:00
brking@us.ibm.com
32d29776f8 [SCSI] ipr: Module parm to disable RAID 0 auto create
Some ipr adapters will automatically create single device
RAID 0 arrays for all unconfigured RAID capable devices found
at adapter initialization time. This patch adds a module parameter
to disable this behavior.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 13:08:49 -06:00
brking@us.ibm.com
3d1d0da675 [SCSI] ipr: Runtime reset
Some IPR RAID adapter will automatically create single device RAID arrays
for all attached devices when the card is initialized. Setting the
RUNTIME_RESET doorbell bit will prevent this from occurring, since we
only want this behavior the first time the card is initialized and not
each time the card happens to get reset.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 13:05:42 -06:00
brking@us.ibm.com
b0df54bb4c [SCSI] ipr: handle new adapter errors
Add support for handling some new errors that may be returned
by ipr adapters.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 13:05:27 -06:00
brking@us.ibm.com
f37eb54b48 [SCSI] ipr: Provide reset_adapter retry method for offlined adapters
If an ipr adapter repeatedly fails its initialization
the ipr driver will take the adapter offline and never talk
to it again. This provides a method for the user to manually
try the initialization again through sysfs.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 13:05:07 -06:00
brking@us.ibm.com
d3c74871bd [SCSI] ipr: Runtime debugging options
Make some compile time debugging options runtime module options.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 13:04:41 -06:00
brking@us.ibm.com
12baa4202d [SCSI] ipr: Fix adapter microcode update DMA mapping leak
If the write buffer command that is issued to the ipr adapter
to update its microcode fails for some reason, the DMA buffer
will never get unmapped. Move the pci_map/unmap out of the
IOA reset job so that the buffer is always clearly mapped
and unmapped.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 13:04:18 -06:00
brking@us.ibm.com
0bc42e35c7 [SCSI] ipr: Convert to use kzalloc
Convert appropriate kmalloc/memset calls to use kzalloc.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 13:03:45 -06:00
brking@us.ibm.com
622750406a [SCSI] ipr: Write caching state host attribute
Adds a scsi_host sysfs attribute and module parm to enable/disable
the write cache on an ipr adapter.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 13:03:24 -06:00
brking@us.ibm.com
692aebfc69 [SCSI] ipr: slave_alloc optimization
Optimize ipr's slave_alloc to return -ENXIO for devices that
do not exist.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 13:02:46 -06:00
brking@us.ibm.com
0726ce2610 [SCSI] ipr: Prevent upper layer driver binding
Set the no_uld_attach for devices ipr does not want
upper layer drivers to attach to. These devices are
only reported for RAID management and only sg should
be used to talk to them.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 13:02:20 -06:00
brking@us.ibm.com
d0ad6f5039 [SCSI] ipr: Include all disks in supported list
Fix ipr to include all disks in the supported device list,
not just disks formatted to advanced function format.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 13:01:55 -06:00
brking@us.ibm.com
cf8520376c [SCSI] ipr: Error logging cleanup
Simplify error logging path, sanitize error length returned
by the adapter.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 13:01:24 -06:00
brking@us.ibm.com
a9cfca9622 [SCSI] ipr: Handle unknown errors
Better handle errors received which are not known to the device driver.
Just dump the hex data so that we have a hope of figuring out what
went wrong.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 13:01:17 -06:00
brking@us.ibm.com
6837c2bfda [SCSI] ipr: Generic adapter error cleaup
The generic ipr adapter error log currently logs 2 lines of useless
data. Delete these lines.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 13:00:55 -06:00
brking@us.ibm.com
fa15b1f6be [SCSI] ipr: Physical resource error logging macro
Adds a macro in the ipr driver for logging a physical device location.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 13:00:34 -06:00
brking@us.ibm.com
cfc321397e [SCSI] ipr: Cleanup error structures
Simplify the ipr error structures a bit by removing some duplication.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 12:59:53 -06:00
brking@us.ibm.com
11cd8f1201 [SCSI] ipr: Disk array rescanning fix
IPR RAID arrays show up on a virtual scsi bus, with a scsi bus number
of 255, which is generated by the adapter microcode. For the initial
scan of the host, we manually scan this bus since it does not obey
SAM in regards to sparse LUNs and the disk array devices do not have
a consistent product id to use scsi core's blacklist. If /proc/scsi/scsi
or sysfs is used to delete one of these devices, the device will not
be able to get added back by rescanning the host since scsi core
will see ipr's max_channel as 4, rather than 255. Update max_channel
after the initial scan so that ipr raid arrays can get re-added
if they get deleted.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-06 12:59:48 -06:00
Brian King
b30197d2c0 [PATCH] PCI: ipr: Block config access during BIST
IPR scsi adapter have an exposure today in that they issue BIST to the adapter
to reset the card.  If, during the time it takes to complete BIST, userspace
attempts to access PCI config space, the host bus bridge will master abort the
access since the ipr adapter does not respond on the PCI bus for a brief
period of time when running BIST.  On PPC64 hardware, this master abort
results in the host PCI bridge isolating that PCI device from the rest of the
system, making the device unusable until Linux is rebooted.  This patch makes
use of some newly added PCI layer APIs that allow for protection from
userspace accessing config space of a device in scenarios such as this.

Signed-off-by: Brian King <brking@us.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

 drivers/scsi/ipr.c |    2 ++
 1 file changed, 2 insertions(+)
2005-10-28 15:36:58 -07:00
Greg Kroah-Hartman
d18c3db58b [PATCH] PCI: make drivers use the pci shutdown callback instead of the driver core callback.
Now we can change the pci core to always set this pointer, as pci drivers
should use it, not the driver core callback.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-27 21:52:47 -07:00
Yani Ioannou
10523b3b82 [PATCH] Driver Core: drivers/s390/net/qeth_sys.c - drivers/usb/gadget/pxa2xx_udc.c: update device attribute callbacks
Signed-off-by: Yani Ioannou <yani.ioannou@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-20 15:15:35 -07:00
Jeff Garzik
df0ae2497d [SCSI] allow sleeping in ->eh_host_reset_handler()
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-17 12:05:18 -05:00
Jeff Garzik
94d0e7b805 [SCSI] allow sleeping in ->eh_device_reset_handler()
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-17 12:05:03 -05:00
Jeff Garzik
8fa728a268 [SCSI] allow sleeping in ->eh_abort_handler()
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-17 12:04:55 -05:00
brking@us.ibm.com
5cbf5eaef7 [SCSI] ipr: Fix ipr PCI hotplug hang with CDROM attach
Currently, during PCI hotplug remove, if the upper layer
drivers of the attached devices send commands down as part
of the remove action, like a CDROM, the hotplug action
will hang forever due to the ipr driver returning
SCSI_MLQUEUE_HOST_BUSY. Patch fixes this.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-05-20 12:53:48 -05:00
brking@us.ibm.com
1b69f645f2 [SCSI] ipr: Array error logging fix
Bugme 4547. The following patch fixes a bug in ipr's error logging.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-05-20 12:53:44 -05:00
Linus Torvalds
1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00