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  1. 06 Apr, 2009 1 commit
  3. 02 Apr, 2009 1 commit
  5. 01 Apr, 2009 2 commits
  7. 30 Mar, 2009 1 commit
  9. 28 Mar, 2009 1 commit
  11. 26 Mar, 2009 1 commit
  13. 24 Mar, 2009 1 commit
    • Jason Baron's avatar
      dynamic debug: combine dprintk and dynamic printk · e9d376f0
      Jason Baron authored 
      
This patch combines Greg Bank's dprintk() work with the existing dynamic
printk patchset, we are now calling it 'dynamic debug'.

The new feature of this patchset is a richer /debugfs control file interface,
(an example output from my system is at the bottom), which allows fined grained
control over the the debug output. The output can be controlled by function,
file, module, format string, and line number.

for example, enabled all debug messages in module 'nf_conntrack':

echo -n 'module nf_conntrack +p' > /mnt/debugfs/dynamic_debug/control

to disable them:

echo -n 'module nf_conntrack -p' > /mnt/debugfs/dynamic_debug/control

A further explanation can be found in the documentation patch.
Signed-off-by: default avatarGreg Banks <gnb@sgi.com>
Signed-off-by: default avatarJason Baron <jbaron@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
      e9d376f0
  15. 23 Mar, 2009 2 commits
  17. 20 Mar, 2009 1 commit
    • Yuji Shimada's avatar
      PCI: allow assignment of memory resources with a specified alignment · 32a9a682
      Yuji Shimada authored 
      
This patch allows memory resources to be assigned with a specified
alignment at boot-time or run-time. The patch is useful when we use PCI
pass-through, because page-aligned memory resources are required to
securely share PCI resources with guest drivers.

If you want to assign the resource at boot time, please set
"pci=resource_alignment=" boot parameter.

This is format of "pci=resource_alignment=" boot parameter:

        [<order of align>@][<domain>:]<bus>:<slot>.<func>[; ...]
                Specifies alignment and device to reassign
                aligned memory resources.
                If <order of align> is not specified, PAGE_SIZE is
                used as alignment.
                PCI-PCI bridge can be specified, if resource
                windows need to be expanded.

This is example:

        pci=resource_alignment=20@07:00.0;18@0f:00.0;00:1d.7

If you want to assign the resource at run-time, please set
"/sys/bus/pci/resource_alignment" file, and hot-remove the device and
hot-add the device.  For this purpose, fakephp or PCI hotplug interfaces
can be used.

The format of "/sys/bus/pci/resource_alignment" file is the same with
boot parameter. You can use "," instead of ";".

For example:

        # cd /sys/bus/pci
        # echo -n 20@12:00.0 > resource_alignment
        # echo 1 > devices/0000:12:00.0/remove
        # echo 1 > rescan
Reviewed-by: default avatarAlex Chiang <achiang@hp.com>
Reviewed-by: default avatarYu Zhao <yu.zhao@intel.com>
Signed-off-by: default avatarYuji Shimada <shimada-yxb@necst.nec.co.jp>
Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
      32a9a682
  19. 19 Mar, 2009 1 commit
  21. 10 Mar, 2009 1 commit
  23. 05 Mar, 2009 1 commit
  25. 02 Mar, 2009 1 commit
  27. 25 Feb, 2009 2 commits
  29. 23 Feb, 2009 1 commit
  31. 22 Feb, 2009 2 commits
  33. 05 Feb, 2009 3 commits
  35. 18 Jan, 2009 1 commit
  37. 09 Jan, 2009 2 commits
  39. 08 Jan, 2009 1 commit
  41. 07 Jan, 2009 3 commits
    • Arjan van de Ven's avatar
      resource: allow MMIO exclusivity for device drivers · e8de1481
      Arjan van de Ven authored 
      
Device drivers that use pci_request_regions() (and similar APIs) have a
reasonable expectation that they are the only ones accessing their device.
As part of the e1000e hunt, we were afraid that some userland (X or some
bootsplash stuff) was mapping the MMIO region that the driver thought it
had exclusively via /dev/mem or via various sysfs resource mappings.

This patch adds the option for device drivers to cause their reserved
regions to the "banned from /dev/mem use" list, so now both kernel memory
and device-exclusive MMIO regions are banned.
NOTE: This is only active when CONFIG_STRICT_DEVMEM is set.

In addition to the config option, a kernel parameter iomem=relaxed is
provided for the cases where developers want to diagnose, in the field,
drivers issues from userspace.
Reviewed-by: default avatarMatthew Wilcox <willy@linux.intel.com>
Signed-off-by: default avatarArjan van de Ven <arjan@linux.intel.com>
Signed-off-by: default avatarJesse Barnes <jbarnes@virtuousgeek.org>
      e8de1481
    • Alan Stern's avatar
      USB: storage: make the "quirks=" module parameter writable · c838ea46
      Alan Stern authored 
      
This patch (as1190) makes usb-storage's "quirks=" module parameter
writable, so that users can add entries for their devices at runtime
with no need to reboot or reload usb-storage.

New codes are added for the SANE_SENSE, CAPACITY_HEURISTICS, and
CAPACITY_OK flags.
Signed-off-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
      c838ea46
    • Alan Stern's avatar
      USB: usb-storage: add "quirks=" module parameter · d4f373e5
      Alan Stern authored 
      
This patch (as1163b) adds a "quirks=" module parameter to usb-storage.
This will allow people to make short-term changes to their
unusual_devs list without rebuilding the entire driver.  Testing will
become much easier, and less-sophisticated users will be able to
access their buggy devices after a simple config-file change instead
of having to wait for a new kernel release.

The patch also adds a documentation entry for usb-storage's
"delay_use" parameter, which has been around for years but but was
never listed among the kernel parameters.
Signed-off-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
      d4f373e5
  43. 06 Jan, 2009 4 commits
  45. 29 Dec, 2008 1 commit
  47. 25 Dec, 2008 2 commits
  49. 19 Dec, 2008 3 commits