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r: 232008
b: refs/heads/master
c: fc887b1
h: refs/heads/master
v: v3
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Linus Torvalds committed Jan 21, 2011
1 parent d096969 commit 9ba6702
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: df6212529c646710502657b18d8f42927f3dda81
refs/heads/master: fc887b15d935ead2a00aef5779a18034e7c69ee1
4 changes: 4 additions & 0 deletions trunk/Documentation/ABI/stable/thermal-notification
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What: A notification mechanism for thermal related events
Description:
This interface enables notification for thermal related events.
The notification is in the form of a netlink event.
21 changes: 17 additions & 4 deletions trunk/Documentation/DocBook/80211.tmpl
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Expand Up @@ -268,10 +268,6 @@
!Finclude/net/mac80211.h ieee80211_ops
!Finclude/net/mac80211.h ieee80211_alloc_hw
!Finclude/net/mac80211.h ieee80211_register_hw
!Finclude/net/mac80211.h ieee80211_get_tx_led_name
!Finclude/net/mac80211.h ieee80211_get_rx_led_name
!Finclude/net/mac80211.h ieee80211_get_assoc_led_name
!Finclude/net/mac80211.h ieee80211_get_radio_led_name
!Finclude/net/mac80211.h ieee80211_unregister_hw
!Finclude/net/mac80211.h ieee80211_free_hw
</chapter>
Expand Down Expand Up @@ -382,6 +378,23 @@
</para>
</partintro>

<chapter id="led-support">
<title>LED support</title>
<para>
Mac80211 supports various ways of blinking LEDs. Wherever possible,
device LEDs should be exposed as LED class devices and hooked up to
the appropriate trigger, which will then be triggered appropriately
by mac80211.
</para>
!Finclude/net/mac80211.h ieee80211_get_tx_led_name
!Finclude/net/mac80211.h ieee80211_get_rx_led_name
!Finclude/net/mac80211.h ieee80211_get_assoc_led_name
!Finclude/net/mac80211.h ieee80211_get_radio_led_name
!Finclude/net/mac80211.h ieee80211_tpt_blink
!Finclude/net/mac80211.h ieee80211_tpt_led_trigger_flags
!Finclude/net/mac80211.h ieee80211_create_tpt_led_trigger
</chapter>

<chapter id="hardware-crypto-offload">
<title>Hardware crypto acceleration</title>
!Pinclude/net/mac80211.h Hardware crypto acceleration
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27 changes: 27 additions & 0 deletions trunk/Documentation/IPMI.txt
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Expand Up @@ -533,6 +533,33 @@ completion during sending a panic event.
Other Pieces
------------

Get the detailed info related with the IPMI device
--------------------------------------------------

Some users need more detailed information about a device, like where
the address came from or the raw base device for the IPMI interface.
You can use the IPMI smi_watcher to catch the IPMI interfaces as they
come or go, and to grab the information, you can use the function
ipmi_get_smi_info(), which returns the following structure:

struct ipmi_smi_info {
enum ipmi_addr_src addr_src;
struct device *dev;
union {
struct {
void *acpi_handle;
} acpi_info;
} addr_info;
};

Currently special info for only for SI_ACPI address sources is
returned. Others may be added as necessary.

Note that the dev pointer is included in the above structure, and
assuming ipmi_smi_get_info returns success, you must call put_device
on the dev pointer.


Watchdog
--------

Expand Down
122 changes: 122 additions & 0 deletions trunk/Documentation/acpi/apei/output_format.txt
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APEI output format
~~~~~~~~~~~~~~~~~~

APEI uses printk as hardware error reporting interface, the output
format is as follow.

<error record> :=
APEI generic hardware error status
severity: <integer>, <severity string>
section: <integer>, severity: <integer>, <severity string>
flags: <integer>
<section flags strings>
fru_id: <uuid string>
fru_text: <string>
section_type: <section type string>
<section data>

<severity string>* := recoverable | fatal | corrected | info

<section flags strings># :=
[primary][, containment warning][, reset][, threshold exceeded]\
[, resource not accessible][, latent error]

<section type string> := generic processor error | memory error | \
PCIe error | unknown, <uuid string>

<section data> :=
<generic processor section data> | <memory section data> | \
<pcie section data> | <null>

<generic processor section data> :=
[processor_type: <integer>, <proc type string>]
[processor_isa: <integer>, <proc isa string>]
[error_type: <integer>
<proc error type strings>]
[operation: <integer>, <proc operation string>]
[flags: <integer>
<proc flags strings>]
[level: <integer>]
[version_info: <integer>]
[processor_id: <integer>]
[target_address: <integer>]
[requestor_id: <integer>]
[responder_id: <integer>]
[IP: <integer>]

<proc type string>* := IA32/X64 | IA64

<proc isa string>* := IA32 | IA64 | X64

<processor error type strings># :=
[cache error][, TLB error][, bus error][, micro-architectural error]

<proc operation string>* := unknown or generic | data read | data write | \
instruction execution

<proc flags strings># :=
[restartable][, precise IP][, overflow][, corrected]

<memory section data> :=
[error_status: <integer>]
[physical_address: <integer>]
[physical_address_mask: <integer>]
[node: <integer>]
[card: <integer>]
[module: <integer>]
[bank: <integer>]
[device: <integer>]
[row: <integer>]
[column: <integer>]
[bit_position: <integer>]
[requestor_id: <integer>]
[responder_id: <integer>]
[target_id: <integer>]
[error_type: <integer>, <mem error type string>]

<mem error type string>* :=
unknown | no error | single-bit ECC | multi-bit ECC | \
single-symbol chipkill ECC | multi-symbol chipkill ECC | master abort | \
target abort | parity error | watchdog timeout | invalid address | \
mirror Broken | memory sparing | scrub corrected error | \
scrub uncorrected error

<pcie section data> :=
[port_type: <integer>, <pcie port type string>]
[version: <integer>.<integer>]
[command: <integer>, status: <integer>]
[device_id: <integer>:<integer>:<integer>.<integer>
slot: <integer>
secondary_bus: <integer>
vendor_id: <integer>, device_id: <integer>
class_code: <integer>]
[serial number: <integer>, <integer>]
[bridge: secondary_status: <integer>, control: <integer>]

<pcie port type string>* := PCIe end point | legacy PCI end point | \
unknown | unknown | root port | upstream switch port | \
downstream switch port | PCIe to PCI/PCI-X bridge | \
PCI/PCI-X to PCIe bridge | root complex integrated endpoint device | \
root complex event collector

Where, [] designate corresponding content is optional

All <field string> description with * has the following format:

field: <integer>, <field string>

Where value of <integer> should be the position of "string" in <field
string> description. Otherwise, <field string> will be "unknown".

All <field strings> description with # has the following format:

field: <integer>
<field strings>

Where each string in <fields strings> corresponding to one set bit of
<integer>. The bit position is the position of "string" in <field
strings> description.

For more detailed explanation of every field, please refer to UEFI
specification version 2.3 or later, section Appendix N: Common
Platform Error Record.
27 changes: 27 additions & 0 deletions trunk/Documentation/cgroups/blkio-controller.txt
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Expand Up @@ -89,6 +89,33 @@ Throttling/Upper Limit policy

Limits for writes can be put using blkio.write_bps_device file.

Hierarchical Cgroups
====================
- Currently none of the IO control policy supports hierarhical groups. But
cgroup interface does allow creation of hierarhical cgroups and internally
IO policies treat them as flat hierarchy.

So this patch will allow creation of cgroup hierarhcy but at the backend
everything will be treated as flat. So if somebody created a hierarchy like
as follows.

root
/ \
test1 test2
|
test3

CFQ and throttling will practically treat all groups at same level.

pivot
/ | \ \
root test1 test2 test3

Down the line we can implement hierarchical accounting/control support
and also introduce a new cgroup file "use_hierarchy" which will control
whether cgroup hierarchy is viewed as flat or hierarchical by the policy..
This is how memory controller also has implemented the things.

Various user visible config options
===================================
CONFIG_BLK_CGROUP
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7 changes: 6 additions & 1 deletion trunk/Documentation/device-mapper/dm-crypt.txt
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Expand Up @@ -8,7 +8,7 @@ Parameters: <cipher> <key> <iv_offset> <device path> <offset>

<cipher>
Encryption cipher and an optional IV generation mode.
(In format cipher-chainmode-ivopts:ivmode).
(In format cipher[:keycount]-chainmode-ivopts:ivmode).
Examples:
des
aes-cbc-essiv:sha256
Expand All @@ -20,6 +20,11 @@ Parameters: <cipher> <key> <iv_offset> <device path> <offset>
Key used for encryption. It is encoded as a hexadecimal number.
You can only use key sizes that are valid for the selected cipher.

<keycount>
Multi-key compatibility mode. You can define <keycount> keys and
then sectors are encrypted according to their offsets (sector 0 uses key0;
sector 1 uses key1 etc.). <keycount> must be a power of two.

<iv_offset>
The IV offset is a sector count that is added to the sector number
before creating the IV.
Expand Down
70 changes: 70 additions & 0 deletions trunk/Documentation/device-mapper/dm-raid.txt
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Device-mapper RAID (dm-raid) is a bridge from DM to MD. It
provides a way to use device-mapper interfaces to access the MD RAID
drivers.

As with all device-mapper targets, the nominal public interfaces are the
constructor (CTR) tables and the status outputs (both STATUSTYPE_INFO
and STATUSTYPE_TABLE). The CTR table looks like the following:

1: <s> <l> raid \
2: <raid_type> <#raid_params> <raid_params> \
3: <#raid_devs> <meta_dev1> <dev1> .. <meta_devN> <devN>

Line 1 contains the standard first three arguments to any device-mapper
target - the start, length, and target type fields. The target type in
this case is "raid".

Line 2 contains the arguments that define the particular raid
type/personality/level, the required arguments for that raid type, and
any optional arguments. Possible raid types include: raid4, raid5_la,
raid5_ls, raid5_rs, raid6_zr, raid6_nr, and raid6_nc. (raid1 is
planned for the future.) The list of required and optional parameters
is the same for all the current raid types. The required parameters are
positional, while the optional parameters are given as key/value pairs.
The possible parameters are as follows:
<chunk_size> Chunk size in sectors.
[[no]sync] Force/Prevent RAID initialization
[rebuild <idx>] Rebuild the drive indicated by the index
[daemon_sleep <ms>] Time between bitmap daemon work to clear bits
[min_recovery_rate <kB/sec/disk>] Throttle RAID initialization
[max_recovery_rate <kB/sec/disk>] Throttle RAID initialization
[max_write_behind <sectors>] See '-write-behind=' (man mdadm)
[stripe_cache <sectors>] Stripe cache size for higher RAIDs

Line 3 contains the list of devices that compose the array in
metadata/data device pairs. If the metadata is stored separately, a '-'
is given for the metadata device position. If a drive has failed or is
missing at creation time, a '-' can be given for both the metadata and
data drives for a given position.

NB. Currently all metadata devices must be specified as '-'.

Examples:
# RAID4 - 4 data drives, 1 parity
# No metadata devices specified to hold superblock/bitmap info
# Chunk size of 1MiB
# (Lines separated for easy reading)
0 1960893648 raid \
raid4 1 2048 \
5 - 8:17 - 8:33 - 8:49 - 8:65 - 8:81

# RAID4 - 4 data drives, 1 parity (no metadata devices)
# Chunk size of 1MiB, force RAID initialization,
# min recovery rate at 20 kiB/sec/disk
0 1960893648 raid \
raid4 4 2048 min_recovery_rate 20 sync\
5 - 8:17 - 8:33 - 8:49 - 8:65 - 8:81

Performing a 'dmsetup table' should display the CTR table used to
construct the mapping (with possible reordering of optional
parameters).

Performing a 'dmsetup status' will yield information on the state and
health of the array. The output is as follows:
1: <s> <l> raid \
2: <raid_type> <#devices> <1 health char for each dev> <resync_ratio>

Line 1 is standard DM output. Line 2 is best shown by example:
0 1960893648 raid raid4 5 AAAAA 2/490221568
Here we can see the RAID type is raid4, there are 5 devices - all of
which are 'A'live, and the array is 2/490221568 complete with recovery.
21 changes: 21 additions & 0 deletions trunk/Documentation/feature-removal-schedule.txt
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Expand Up @@ -248,6 +248,17 @@ Who: Zhang Rui <rui.zhang@intel.com>

---------------------------

What: CONFIG_ACPI_PROCFS_POWER
When: 2.6.39
Why: sysfs I/F for ACPI power devices, including AC and Battery,
has been working in upstream kenrel since 2.6.24, Sep 2007.
In 2.6.37, we make the sysfs I/F always built in and this option
disabled by default.
Remove this option and the ACPI power procfs interface in 2.6.39.
Who: Zhang Rui <rui.zhang@intel.com>

---------------------------

What: /proc/acpi/button
When: August 2007
Why: /proc/acpi/button has been replaced by events to the input layer
Expand Down Expand Up @@ -590,3 +601,13 @@ Why: The functions have been superceded by cancel_delayed_work_sync()
Who: Tejun Heo <tj@kernel.org>

----------------------------

What: Legacy, non-standard chassis intrusion detection interface.
When: June 2011
Why: The adm9240, w83792d and w83793 hardware monitoring drivers have
legacy interfaces for chassis intrusion detection. A standard
interface has been added to each driver, so the legacy interface
can be removed.
Who: Jean Delvare <khali@linux-fr.org>

----------------------------
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