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authorIngo Molnar <mingo@elte.hu>2008-07-22 03:06:21 -0400
committerIngo Molnar <mingo@elte.hu>2008-07-22 03:06:21 -0400
commit76c3bb15d6786a0b8da0ad0090e0c9c3672fc08b (patch)
tree3824e008db9d554229a70c85fbbc13238276bd7a /Documentation
parent7be42004065ce4df193aeef5befd26805267d0d9 (diff)
parent93ded9b8fd42abe2c3607097963d8de6ad9117eb (diff)
Merge branch 'linus' into x86/x2apic
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/DocBook/gadget.tmpl38
-rw-r--r--Documentation/feature-removal-schedule.txt32
-rw-r--r--Documentation/filesystems/configfs/configfs.txt10
-rw-r--r--Documentation/filesystems/configfs/configfs_example.c14
-rw-r--r--Documentation/filesystems/nfs-rdma.txt103
-rw-r--r--Documentation/ia64/paravirt_ops.txt137
-rw-r--r--Documentation/input/gameport-programming.txt2
-rw-r--r--Documentation/input/input.txt1
-rw-r--r--Documentation/input/joystick-api.txt2
-rw-r--r--Documentation/input/joystick-parport.txt1
-rw-r--r--Documentation/input/joystick.txt1
-rw-r--r--Documentation/kernel-parameters.txt13
-rw-r--r--Documentation/md.txt30
-rw-r--r--Documentation/networking/bonding.txt110
-rw-r--r--Documentation/networking/dm9000.txt167
-rw-r--r--Documentation/networking/ip-sysctl.txt21
-rw-r--r--Documentation/networking/ixgb.txt419
-rw-r--r--Documentation/networking/mac80211_hwsim/README67
-rw-r--r--Documentation/networking/mac80211_hwsim/hostapd.conf11
-rw-r--r--Documentation/networking/mac80211_hwsim/wpa_supplicant.conf10
-rw-r--r--Documentation/networking/multiqueue.txt90
-rw-r--r--Documentation/networking/s2io.txt7
-rw-r--r--Documentation/powerpc/booting-without-of.txt78
-rw-r--r--Documentation/rfkill.txt547
-rw-r--r--Documentation/serial/driver11
-rw-r--r--Documentation/usb/gadget_serial.txt35
-rw-r--r--Documentation/usb/persist.txt7
-rw-r--r--Documentation/usb/uhci.txt165
-rw-r--r--Documentation/video4linux/CARDLIST.cx238851
-rw-r--r--Documentation/video4linux/CARDLIST.em28xx5
-rw-r--r--Documentation/video4linux/CARDLIST.saa71348
-rw-r--r--Documentation/video4linux/cx18.txt36
-rw-r--r--Documentation/video4linux/gspca.txt243
33 files changed, 1868 insertions, 554 deletions
diff --git a/Documentation/DocBook/gadget.tmpl b/Documentation/DocBook/gadget.tmpl
index 5a8ffa761e09..ea3bc9565e6a 100644
--- a/Documentation/DocBook/gadget.tmpl
+++ b/Documentation/DocBook/gadget.tmpl
@@ -524,6 +524,44 @@ These utilities include endpoint autoconfiguration.
524<!-- !Edrivers/usb/gadget/epautoconf.c --> 524<!-- !Edrivers/usb/gadget/epautoconf.c -->
525</sect1> 525</sect1>
526 526
527<sect1 id="composite"><title>Composite Device Framework</title>
528
529<para>The core API is sufficient for writing drivers for composite
530USB devices (with more than one function in a given configuration),
531and also multi-configuration devices (also more than one function,
532but not necessarily sharing a given configuration).
533There is however an optional framework which makes it easier to
534reuse and combine functions.
535</para>
536
537<para>Devices using this framework provide a <emphasis>struct
538usb_composite_driver</emphasis>, which in turn provides one or
539more <emphasis>struct usb_configuration</emphasis> instances.
540Each such configuration includes at least one
541<emphasis>struct usb_function</emphasis>, which packages a user
542visible role such as "network link" or "mass storage device".
543Management functions may also exist, such as "Device Firmware
544Upgrade".
545</para>
546
547!Iinclude/linux/usb/composite.h
548!Edrivers/usb/gadget/composite.c
549
550</sect1>
551
552<sect1 id="functions"><title>Composite Device Functions</title>
553
554<para>At this writing, a few of the current gadget drivers have
555been converted to this framework.
556Near-term plans include converting all of them, except for "gadgetfs".
557</para>
558
559!Edrivers/usb/gadget/f_acm.c
560!Edrivers/usb/gadget/f_serial.c
561
562</sect1>
563
564
527</chapter> 565</chapter>
528 566
529<chapter id="controllers"><title>Peripheral Controller Drivers</title> 567<chapter id="controllers"><title>Peripheral Controller Drivers</title>
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 65a1482457a8..9f73587219e8 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -308,9 +308,41 @@ Who: Matthew Wilcox <willy@linux.intel.com>
308 308
309--------------------------- 309---------------------------
310 310
311What: SCTP_GET_PEER_ADDRS_NUM_OLD, SCTP_GET_PEER_ADDRS_OLD,
312 SCTP_GET_LOCAL_ADDRS_NUM_OLD, SCTP_GET_LOCAL_ADDRS_OLD
313When: June 2009
314Why: A newer version of the options have been introduced in 2005 that
315 removes the limitions of the old API. The sctp library has been
316 converted to use these new options at the same time. Any user
317 space app that directly uses the old options should convert to using
318 the new options.
319Who: Vlad Yasevich <vladislav.yasevich@hp.com>
320
321---------------------------
322
311What: CONFIG_THERMAL_HWMON 323What: CONFIG_THERMAL_HWMON
312When: January 2009 324When: January 2009
313Why: This option was introduced just to allow older lm-sensors userspace 325Why: This option was introduced just to allow older lm-sensors userspace
314 to keep working over the upgrade to 2.6.26. At the scheduled time of 326 to keep working over the upgrade to 2.6.26. At the scheduled time of
315 removal fixed lm-sensors (2.x or 3.x) should be readily available. 327 removal fixed lm-sensors (2.x or 3.x) should be readily available.
316Who: Rene Herman <rene.herman@gmail.com> 328Who: Rene Herman <rene.herman@gmail.com>
329
330---------------------------
331
332What: Code that is now under CONFIG_WIRELESS_EXT_SYSFS
333 (in net/core/net-sysfs.c)
334When: After the only user (hal) has seen a release with the patches
335 for enough time, probably some time in 2010.
336Why: Over 1K .text/.data size reduction, data is available in other
337 ways (ioctls)
338Who: Johannes Berg <johannes@sipsolutions.net>
339
340---------------------------
341
342What: CONFIG_NF_CT_ACCT
343When: 2.6.29
344Why: Accounting can now be enabled/disabled without kernel recompilation.
345 Currently used only to set a default value for a feature that is also
346 controlled by a kernel/module/sysfs/sysctl parameter.
347Who: Krzysztof Piotr Oledzki <ole@ans.pl>
348
diff --git a/Documentation/filesystems/configfs/configfs.txt b/Documentation/filesystems/configfs/configfs.txt
index 15838d706ea2..44c97e6accb2 100644
--- a/Documentation/filesystems/configfs/configfs.txt
+++ b/Documentation/filesystems/configfs/configfs.txt
@@ -233,12 +233,10 @@ accomplished via the group operations specified on the group's
233config_item_type. 233config_item_type.
234 234
235 struct configfs_group_operations { 235 struct configfs_group_operations {
236 int (*make_item)(struct config_group *group, 236 struct config_item *(*make_item)(struct config_group *group,
237 const char *name, 237 const char *name);
238 struct config_item **new_item); 238 struct config_group *(*make_group)(struct config_group *group,
239 int (*make_group)(struct config_group *group, 239 const char *name);
240 const char *name,
241 struct config_group **new_group);
242 int (*commit_item)(struct config_item *item); 240 int (*commit_item)(struct config_item *item);
243 void (*disconnect_notify)(struct config_group *group, 241 void (*disconnect_notify)(struct config_group *group,
244 struct config_item *item); 242 struct config_item *item);
diff --git a/Documentation/filesystems/configfs/configfs_example.c b/Documentation/filesystems/configfs/configfs_example.c
index 0b422acd470c..039648791701 100644
--- a/Documentation/filesystems/configfs/configfs_example.c
+++ b/Documentation/filesystems/configfs/configfs_example.c
@@ -273,13 +273,13 @@ static inline struct simple_children *to_simple_children(struct config_item *ite
273 return item ? container_of(to_config_group(item), struct simple_children, group) : NULL; 273 return item ? container_of(to_config_group(item), struct simple_children, group) : NULL;
274} 274}
275 275
276static int simple_children_make_item(struct config_group *group, const char *name, struct config_item **new_item) 276static struct config_item *simple_children_make_item(struct config_group *group, const char *name)
277{ 277{
278 struct simple_child *simple_child; 278 struct simple_child *simple_child;
279 279
280 simple_child = kzalloc(sizeof(struct simple_child), GFP_KERNEL); 280 simple_child = kzalloc(sizeof(struct simple_child), GFP_KERNEL);
281 if (!simple_child) 281 if (!simple_child)
282 return -ENOMEM; 282 return ERR_PTR(-ENOMEM);
283 283
284 284
285 config_item_init_type_name(&simple_child->item, name, 285 config_item_init_type_name(&simple_child->item, name,
@@ -287,8 +287,7 @@ static int simple_children_make_item(struct config_group *group, const char *nam
287 287
288 simple_child->storeme = 0; 288 simple_child->storeme = 0;
289 289
290 *new_item = &simple_child->item; 290 return &simple_child->item;
291 return 0;
292} 291}
293 292
294static struct configfs_attribute simple_children_attr_description = { 293static struct configfs_attribute simple_children_attr_description = {
@@ -360,21 +359,20 @@ static struct configfs_subsystem simple_children_subsys = {
360 * children of its own. 359 * children of its own.
361 */ 360 */
362 361
363static int group_children_make_group(struct config_group *group, const char *name, struct config_group **new_group) 362static struct config_group *group_children_make_group(struct config_group *group, const char *name)
364{ 363{
365 struct simple_children *simple_children; 364 struct simple_children *simple_children;
366 365
367 simple_children = kzalloc(sizeof(struct simple_children), 366 simple_children = kzalloc(sizeof(struct simple_children),
368 GFP_KERNEL); 367 GFP_KERNEL);
369 if (!simple_children) 368 if (!simple_children)
370 return -ENOMEM; 369 return ERR_PTR(-ENOMEM);
371 370
372 371
373 config_group_init_type_name(&simple_children->group, name, 372 config_group_init_type_name(&simple_children->group, name,
374 &simple_children_type); 373 &simple_children_type);
375 374
376 *new_group = &simple_children->group; 375 return &simple_children->group;
377 return 0;
378} 376}
379 377
380static struct configfs_attribute group_children_attr_description = { 378static struct configfs_attribute group_children_attr_description = {
diff --git a/Documentation/filesystems/nfs-rdma.txt b/Documentation/filesystems/nfs-rdma.txt
index d0ec45ae4e7d..44bd766f2e5d 100644
--- a/Documentation/filesystems/nfs-rdma.txt
+++ b/Documentation/filesystems/nfs-rdma.txt
@@ -5,7 +5,7 @@
5################################################################################ 5################################################################################
6 6
7 Author: NetApp and Open Grid Computing 7 Author: NetApp and Open Grid Computing
8 Date: April 15, 2008 8 Date: May 29, 2008
9 9
10Table of Contents 10Table of Contents
11~~~~~~~~~~~~~~~~~ 11~~~~~~~~~~~~~~~~~
@@ -60,16 +60,18 @@ Installation
60 The procedures described in this document have been tested with 60 The procedures described in this document have been tested with
61 distributions from Red Hat's Fedora Project (http://fedora.redhat.com/). 61 distributions from Red Hat's Fedora Project (http://fedora.redhat.com/).
62 62
63 - Install nfs-utils-1.1.1 or greater on the client 63 - Install nfs-utils-1.1.2 or greater on the client
64 64
65 An NFS/RDMA mount point can only be obtained by using the mount.nfs 65 An NFS/RDMA mount point can be obtained by using the mount.nfs command in
66 command in nfs-utils-1.1.1 or greater. To see which version of mount.nfs 66 nfs-utils-1.1.2 or greater (nfs-utils-1.1.1 was the first nfs-utils
67 you are using, type: 67 version with support for NFS/RDMA mounts, but for various reasons we
68 recommend using nfs-utils-1.1.2 or greater). To see which version of
69 mount.nfs you are using, type:
68 70
69 > /sbin/mount.nfs -V 71 $ /sbin/mount.nfs -V
70 72
71 If the version is less than 1.1.1 or the command does not exist, 73 If the version is less than 1.1.2 or the command does not exist,
72 then you will need to install the latest version of nfs-utils. 74 you should install the latest version of nfs-utils.
73 75
74 Download the latest package from: 76 Download the latest package from:
75 77
@@ -77,22 +79,33 @@ Installation
77 79
78 Uncompress the package and follow the installation instructions. 80 Uncompress the package and follow the installation instructions.
79 81
80 If you will not be using GSS and NFSv4, the installation process 82 If you will not need the idmapper and gssd executables (you do not need
81 can be simplified by disabling these features when running configure: 83 these to create an NFS/RDMA enabled mount command), the installation
84 process can be simplified by disabling these features when running
85 configure:
82 86
83 > ./configure --disable-gss --disable-nfsv4 87 $ ./configure --disable-gss --disable-nfsv4
84 88
85 For more information on this see the package's README and INSTALL files. 89 To build nfs-utils you will need the tcp_wrappers package installed. For
90 more information on this see the package's README and INSTALL files.
86 91
87 After building the nfs-utils package, there will be a mount.nfs binary in 92 After building the nfs-utils package, there will be a mount.nfs binary in
88 the utils/mount directory. This binary can be used to initiate NFS v2, v3, 93 the utils/mount directory. This binary can be used to initiate NFS v2, v3,
89 or v4 mounts. To initiate a v4 mount, the binary must be called mount.nfs4. 94 or v4 mounts. To initiate a v4 mount, the binary must be called
90 The standard technique is to create a symlink called mount.nfs4 to mount.nfs. 95 mount.nfs4. The standard technique is to create a symlink called
96 mount.nfs4 to mount.nfs.
91 97
92 NOTE: mount.nfs and therefore nfs-utils-1.1.1 or greater is only needed 98 This mount.nfs binary should be installed at /sbin/mount.nfs as follows:
99
100 $ sudo cp utils/mount/mount.nfs /sbin/mount.nfs
101
102 In this location, mount.nfs will be invoked automatically for NFS mounts
103 by the system mount commmand.
104
105 NOTE: mount.nfs and therefore nfs-utils-1.1.2 or greater is only needed
93 on the NFS client machine. You do not need this specific version of 106 on the NFS client machine. You do not need this specific version of
94 nfs-utils on the server. Furthermore, only the mount.nfs command from 107 nfs-utils on the server. Furthermore, only the mount.nfs command from
95 nfs-utils-1.1.1 is needed on the client. 108 nfs-utils-1.1.2 is needed on the client.
96 109
97 - Install a Linux kernel with NFS/RDMA 110 - Install a Linux kernel with NFS/RDMA
98 111
@@ -156,8 +169,8 @@ Check RDMA and NFS Setup
156 this time. For example, if you are using a Mellanox Tavor/Sinai/Arbel 169 this time. For example, if you are using a Mellanox Tavor/Sinai/Arbel
157 card: 170 card:
158 171
159 > modprobe ib_mthca 172 $ modprobe ib_mthca
160 > modprobe ib_ipoib 173 $ modprobe ib_ipoib
161 174
162 If you are using InfiniBand, make sure there is a Subnet Manager (SM) 175 If you are using InfiniBand, make sure there is a Subnet Manager (SM)
163 running on the network. If your IB switch has an embedded SM, you can 176 running on the network. If your IB switch has an embedded SM, you can
@@ -166,7 +179,7 @@ Check RDMA and NFS Setup
166 179
167 If an SM is running on your network, you should see the following: 180 If an SM is running on your network, you should see the following:
168 181
169 > cat /sys/class/infiniband/driverX/ports/1/state 182 $ cat /sys/class/infiniband/driverX/ports/1/state
170 4: ACTIVE 183 4: ACTIVE
171 184
172 where driverX is mthca0, ipath5, ehca3, etc. 185 where driverX is mthca0, ipath5, ehca3, etc.
@@ -174,10 +187,10 @@ Check RDMA and NFS Setup
174 To further test the InfiniBand software stack, use IPoIB (this 187 To further test the InfiniBand software stack, use IPoIB (this
175 assumes you have two IB hosts named host1 and host2): 188 assumes you have two IB hosts named host1 and host2):
176 189
177 host1> ifconfig ib0 a.b.c.x 190 host1$ ifconfig ib0 a.b.c.x
178 host2> ifconfig ib0 a.b.c.y 191 host2$ ifconfig ib0 a.b.c.y
179 host1> ping a.b.c.y 192 host1$ ping a.b.c.y
180 host2> ping a.b.c.x 193 host2$ ping a.b.c.x
181 194
182 For other device types, follow the appropriate procedures. 195 For other device types, follow the appropriate procedures.
183 196
@@ -202,11 +215,11 @@ NFS/RDMA Setup
202 /vol0 192.168.0.47(fsid=0,rw,async,insecure,no_root_squash) 215 /vol0 192.168.0.47(fsid=0,rw,async,insecure,no_root_squash)
203 /vol0 192.168.0.0/255.255.255.0(fsid=0,rw,async,insecure,no_root_squash) 216 /vol0 192.168.0.0/255.255.255.0(fsid=0,rw,async,insecure,no_root_squash)
204 217
205 The IP address(es) is(are) the client's IPoIB address for an InfiniBand HCA or the 218 The IP address(es) is(are) the client's IPoIB address for an InfiniBand
206 cleint's iWARP address(es) for an RNIC. 219 HCA or the cleint's iWARP address(es) for an RNIC.
207 220
208 NOTE: The "insecure" option must be used because the NFS/RDMA client does not 221 NOTE: The "insecure" option must be used because the NFS/RDMA client does
209 use a reserved port. 222 not use a reserved port.
210 223
211 Each time a machine boots: 224 Each time a machine boots:
212 225
@@ -214,43 +227,45 @@ NFS/RDMA Setup
214 227
215 For InfiniBand using a Mellanox adapter: 228 For InfiniBand using a Mellanox adapter:
216 229
217 > modprobe ib_mthca 230 $ modprobe ib_mthca
218 > modprobe ib_ipoib 231 $ modprobe ib_ipoib
219 > ifconfig ib0 a.b.c.d 232 $ ifconfig ib0 a.b.c.d
220 233
221 NOTE: use unique addresses for the client and server 234 NOTE: use unique addresses for the client and server
222 235
223 - Start the NFS server 236 - Start the NFS server
224 237
225 If the NFS/RDMA server was built as a module (CONFIG_SUNRPC_XPRT_RDMA=m in kernel config), 238 If the NFS/RDMA server was built as a module (CONFIG_SUNRPC_XPRT_RDMA=m in
226 load the RDMA transport module: 239 kernel config), load the RDMA transport module:
227 240
228 > modprobe svcrdma 241 $ modprobe svcrdma
229 242
230 Regardless of how the server was built (module or built-in), start the server: 243 Regardless of how the server was built (module or built-in), start the
244 server:
231 245
232 > /etc/init.d/nfs start 246 $ /etc/init.d/nfs start
233 247
234 or 248 or
235 249
236 > service nfs start 250 $ service nfs start
237 251
238 Instruct the server to listen on the RDMA transport: 252 Instruct the server to listen on the RDMA transport:
239 253
240 > echo rdma 2050 > /proc/fs/nfsd/portlist 254 $ echo rdma 2050 > /proc/fs/nfsd/portlist
241 255
242 - On the client system 256 - On the client system
243 257
244 If the NFS/RDMA client was built as a module (CONFIG_SUNRPC_XPRT_RDMA=m in kernel config), 258 If the NFS/RDMA client was built as a module (CONFIG_SUNRPC_XPRT_RDMA=m in
245 load the RDMA client module: 259 kernel config), load the RDMA client module:
246 260
247 > modprobe xprtrdma.ko 261 $ modprobe xprtrdma.ko
248 262
249 Regardless of how the client was built (module or built-in), issue the mount.nfs command: 263 Regardless of how the client was built (module or built-in), use this
264 command to mount the NFS/RDMA server:
250 265
251 > /path/to/your/mount.nfs <IPoIB-server-name-or-address>:/<export> /mnt -i -o rdma,port=2050 266 $ mount -o rdma,port=2050 <IPoIB-server-name-or-address>:/<export> /mnt
252 267
253 To verify that the mount is using RDMA, run "cat /proc/mounts" and check the 268 To verify that the mount is using RDMA, run "cat /proc/mounts" and check
254 "proto" field for the given mount. 269 the "proto" field for the given mount.
255 270
256 Congratulations! You're using NFS/RDMA! 271 Congratulations! You're using NFS/RDMA!
diff --git a/Documentation/ia64/paravirt_ops.txt b/Documentation/ia64/paravirt_ops.txt
new file mode 100644
index 000000000000..39ded02ec33f
--- /dev/null
+++ b/Documentation/ia64/paravirt_ops.txt
@@ -0,0 +1,137 @@
1Paravirt_ops on IA64
2====================
3 21 May 2008, Isaku Yamahata <yamahata@valinux.co.jp>
4
5
6Introduction
7------------
8The aim of this documentation is to help with maintainability and/or to
9encourage people to use paravirt_ops/IA64.
10
11paravirt_ops (pv_ops in short) is a way for virtualization support of
12Linux kernel on x86. Several ways for virtualization support were
13proposed, paravirt_ops is the winner.
14On the other hand, now there are also several IA64 virtualization
15technologies like kvm/IA64, xen/IA64 and many other academic IA64
16hypervisors so that it is good to add generic virtualization
17infrastructure on Linux/IA64.
18
19
20What is paravirt_ops?
21---------------------
22It has been developed on x86 as virtualization support via API, not ABI.
23It allows each hypervisor to override operations which are important for
24hypervisors at API level. And it allows a single kernel binary to run on
25all supported execution environments including native machine.
26Essentially paravirt_ops is a set of function pointers which represent
27operations corresponding to low level sensitive instructions and high
28level functionalities in various area. But one significant difference
29from usual function pointer table is that it allows optimization with
30binary patch. It is because some of these operations are very
31performance sensitive and indirect call overhead is not negligible.
32With binary patch, indirect C function call can be transformed into
33direct C function call or in-place execution to eliminate the overhead.
34
35Thus, operations of paravirt_ops are classified into three categories.
36- simple indirect call
37 These operations correspond to high level functionality so that the
38 overhead of indirect call isn't very important.
39
40- indirect call which allows optimization with binary patch
41 Usually these operations correspond to low level instructions. They
42 are called frequently and performance critical. So the overhead is
43 very important.
44
45- a set of macros for hand written assembly code
46 Hand written assembly codes (.S files) also need paravirtualization
47 because they include sensitive instructions or some of code paths in
48 them are very performance critical.
49
50
51The relation to the IA64 machine vector
52---------------------------------------
53Linux/IA64 has the IA64 machine vector functionality which allows the
54kernel to switch implementations (e.g. initialization, ipi, dma api...)
55depending on executing platform.
56We can replace some implementations very easily defining a new machine
57vector. Thus another approach for virtualization support would be
58enhancing the machine vector functionality.
59But paravirt_ops approach was taken because
60- virtualization support needs wider support than machine vector does.
61 e.g. low level instruction paravirtualization. It must be
62 initialized very early before platform detection.
63
64- virtualization support needs more functionality like binary patch.
65 Probably the calling overhead might not be very large compared to the
66 emulation overhead of virtualization. However in the native case, the
67 overhead should be eliminated completely.
68 A single kernel binary should run on each environment including native,
69 and the overhead of paravirt_ops on native environment should be as
70 small as possible.
71
72- for full virtualization technology, e.g. KVM/IA64 or
73 Xen/IA64 HVM domain, the result would be
74 (the emulated platform machine vector. probably dig) + (pv_ops).
75 This means that the virtualization support layer should be under
76 the machine vector layer.
77
78Possibly it might be better to move some function pointers from
79paravirt_ops to machine vector. In fact, Xen domU case utilizes both
80pv_ops and machine vector.
81
82
83IA64 paravirt_ops
84-----------------
85In this section, the concrete paravirt_ops will be discussed.
86Because of the architecture difference between ia64 and x86, the
87resulting set of functions is very different from x86 pv_ops.
88
89- C function pointer tables
90They are not very performance critical so that simple C indirect
91function call is acceptable. The following structures are defined at
92this moment. For details see linux/include/asm-ia64/paravirt.h
93 - struct pv_info
94 This structure describes the execution environment.
95 - struct pv_init_ops
96 This structure describes the various initialization hooks.
97 - struct pv_iosapic_ops
98 This structure describes hooks to iosapic operations.
99 - struct pv_irq_ops
100 This structure describes hooks to irq related operations
101 - struct pv_time_op
102 This structure describes hooks to steal time accounting.
103
104- a set of indirect calls which need optimization
105Currently this class of functions correspond to a subset of IA64
106intrinsics. At this moment the optimization with binary patch isn't
107implemented yet.
108struct pv_cpu_op is defined. For details see
109linux/include/asm-ia64/paravirt_privop.h
110Mostly they correspond to ia64 intrinsics 1-to-1.
111Caveat: Now they are defined as C indirect function pointers, but in
112order to support binary patch optimization, they will be changed
113using GCC extended inline assembly code.
114
115- a set of macros for hand written assembly code (.S files)
116For maintenance purpose, the taken approach for .S files is single
117source code and compile multiple times with different macros definitions.
118Each pv_ops instance must define those macros to compile.
119The important thing here is that sensitive, but non-privileged
120instructions must be paravirtualized and that some privileged
121instructions also need paravirtualization for reasonable performance.
122Developers who modify .S files must be aware of that. At this moment
123an easy checker is implemented to detect paravirtualization breakage.
124But it doesn't cover all the cases.
125
126Sometimes this set of macros is called pv_cpu_asm_op. But there is no
127corresponding structure in the source code.
128Those macros mostly 1:1 correspond to a subset of privileged
129instructions. See linux/include/asm-ia64/native/inst.h.
130And some functions written in assembly also need to be overrided so
131that each pv_ops instance have to define some macros. Again see
132linux/include/asm-ia64/native/inst.h.
133
134
135Those structures must be initialized very early before start_kernel.
136Probably initialized in head.S using multi entry point or some other trick.
137For native case implementation see linux/arch/ia64/kernel/paravirt.c.
diff --git a/Documentation/input/gameport-programming.txt b/Documentation/input/gameport-programming.txt
index 14e0a8b70225..03a74fc3b496 100644
--- a/Documentation/input/gameport-programming.txt
+++ b/Documentation/input/gameport-programming.txt
@@ -1,5 +1,3 @@
1$Id: gameport-programming.txt,v 1.3 2001/04/24 13:51:37 vojtech Exp $
2
3Programming gameport drivers 1Programming gameport drivers
4~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 2~~~~~~~~~~~~~~~~~~~~~~~~~~~~
5 3
diff --git a/Documentation/input/input.txt b/Documentation/input/input.txt
index ff8cea0225f9..686ee9932dff 100644
--- a/Documentation/input/input.txt
+++ b/Documentation/input/input.txt
@@ -1,7 +1,6 @@
1 Linux Input drivers v1.0 1 Linux Input drivers v1.0
2 (c) 1999-2001 Vojtech Pavlik <vojtech@ucw.cz> 2 (c) 1999-2001 Vojtech Pavlik <vojtech@ucw.cz>
3 Sponsored by SuSE 3 Sponsored by SuSE
4 $Id: input.txt,v 1.8 2002/05/29 03:15:01 bradleym Exp $
5---------------------------------------------------------------------------- 4----------------------------------------------------------------------------
6 5
70. Disclaimer 60. Disclaimer
diff --git a/Documentation/input/joystick-api.txt b/Documentation/input/joystick-api.txt
index acbd32b88454..c507330740cd 100644
--- a/Documentation/input/joystick-api.txt
+++ b/Documentation/input/joystick-api.txt
@@ -5,8 +5,6 @@
5 5
6 7 Aug 1998 6 7 Aug 1998
7 7
8 $Id: joystick-api.txt,v 1.2 2001/05/08 21:21:23 vojtech Exp $
9
101. Initialization 81. Initialization
11~~~~~~~~~~~~~~~~~ 9~~~~~~~~~~~~~~~~~
12 10
diff --git a/Documentation/input/joystick-parport.txt b/Documentation/input/joystick-parport.txt
index ede5f33daad3..1c856f32ff2c 100644
--- a/Documentation/input/joystick-parport.txt
+++ b/Documentation/input/joystick-parport.txt
@@ -2,7 +2,6 @@
2 (c) 1998-2000 Vojtech Pavlik <vojtech@ucw.cz> 2 (c) 1998-2000 Vojtech Pavlik <vojtech@ucw.cz>
3 (c) 1998 Andree Borrmann <a.borrmann@tu-bs.de> 3 (c) 1998 Andree Borrmann <a.borrmann@tu-bs.de>
4 Sponsored by SuSE 4 Sponsored by SuSE
5 $Id: joystick-parport.txt,v 1.6 2001/09/25 09:31:32 vojtech Exp $
6---------------------------------------------------------------------------- 5----------------------------------------------------------------------------
7 6
80. Disclaimer 70. Disclaimer
diff --git a/Documentation/input/joystick.txt b/Documentation/input/joystick.txt
index 389de9bd9878..154d767b2acb 100644
--- a/Documentation/input/joystick.txt
+++ b/Documentation/input/joystick.txt
@@ -1,7 +1,6 @@
1 Linux Joystick driver v2.0.0 1 Linux Joystick driver v2.0.0
2 (c) 1996-2000 Vojtech Pavlik <vojtech@ucw.cz> 2 (c) 1996-2000 Vojtech Pavlik <vojtech@ucw.cz>
3 Sponsored by SuSE 3 Sponsored by SuSE
4 $Id: joystick.txt,v 1.12 2002/03/03 12:13:07 jdeneux Exp $
5---------------------------------------------------------------------------- 4----------------------------------------------------------------------------
6 5
70. Disclaimer 60. Disclaimer
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 556b4187d016..7432ba98cfec 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1206,7 +1206,7 @@ and is between 256 and 4096 characters. It is defined in the file
1206 or 1206 or
1207 memmap=0x10000$0x18690000 1207 memmap=0x10000$0x18690000
1208 1208
1209 memtest= [KNL,X86_64] Enable memtest 1209 memtest= [KNL,X86] Enable memtest
1210 Format: <integer> 1210 Format: <integer>
1211 range: 0,4 : pattern number 1211 range: 0,4 : pattern number
1212 default : 0 <disable> 1212 default : 0 <disable>
@@ -1279,6 +1279,13 @@ and is between 256 and 4096 characters. It is defined in the file
1279 This usage is only documented in each driver source 1279 This usage is only documented in each driver source
1280 file if at all. 1280 file if at all.
1281 1281
1282 nf_conntrack.acct=
1283 [NETFILTER] Enable connection tracking flow accounting
1284 0 to disable accounting
1285 1 to enable accounting
1286 Default value depends on CONFIG_NF_CT_ACCT that is
1287 going to be removed in 2.6.29.
1288
1282 nfsaddrs= [NFS] 1289 nfsaddrs= [NFS]
1283 See Documentation/filesystems/nfsroot.txt. 1290 See Documentation/filesystems/nfsroot.txt.
1284 1291
@@ -2164,6 +2171,10 @@ and is between 256 and 4096 characters. It is defined in the file
2164 Note that genuine overcurrent events won't be 2171 Note that genuine overcurrent events won't be
2165 reported either. 2172 reported either.
2166 2173
2174 unknown_nmi_panic
2175 [X86-32,X86-64]
2176 Set unknown_nmi_panic=1 early on boot.
2177
2167 usbcore.autosuspend= 2178 usbcore.autosuspend=
2168 [USB] The autosuspend time delay (in seconds) used 2179 [USB] The autosuspend time delay (in seconds) used
2169 for newly-detected USB devices (default 2). This 2180 for newly-detected USB devices (default 2). This
diff --git a/Documentation/md.txt b/Documentation/md.txt
index a8b430627473..1da9d1b1793f 100644
--- a/Documentation/md.txt
+++ b/Documentation/md.txt
@@ -236,6 +236,11 @@ All md devices contain:
236 writing the word for the desired state, however some states 236 writing the word for the desired state, however some states
237 cannot be explicitly set, and some transitions are not allowed. 237 cannot be explicitly set, and some transitions are not allowed.
238 238
239 Select/poll works on this file. All changes except between
240 active_idle and active (which can be frequent and are not
241 very interesting) are notified. active->active_idle is
242 reported if the metadata is externally managed.
243
239 clear 244 clear
240 No devices, no size, no level 245 No devices, no size, no level
241 Writing is equivalent to STOP_ARRAY ioctl 246 Writing is equivalent to STOP_ARRAY ioctl
@@ -292,6 +297,10 @@ Each directory contains:
292 writemostly - device will only be subject to read 297 writemostly - device will only be subject to read
293 requests if there are no other options. 298 requests if there are no other options.
294 This applies only to raid1 arrays. 299 This applies only to raid1 arrays.
300 blocked - device has failed, metadata is "external",
301 and the failure hasn't been acknowledged yet.
302 Writes that would write to this device if
303 it were not faulty are blocked.
295 spare - device is working, but not a full member. 304 spare - device is working, but not a full member.
296 This includes spares that are in the process 305 This includes spares that are in the process
297 of being recovered to 306 of being recovered to
@@ -301,6 +310,12 @@ Each directory contains:
301 Writing "remove" removes the device from the array. 310 Writing "remove" removes the device from the array.
302 Writing "writemostly" sets the writemostly flag. 311 Writing "writemostly" sets the writemostly flag.
303 Writing "-writemostly" clears the writemostly flag. 312 Writing "-writemostly" clears the writemostly flag.
313 Writing "blocked" sets the "blocked" flag.
314 Writing "-blocked" clear the "blocked" flag and allows writes
315 to complete.
316
317 This file responds to select/poll. Any change to 'faulty'
318 or 'blocked' causes an event.
304 319
305 errors 320 errors
306 An approximate count of read errors that have been detected on 321 An approximate count of read errors that have been detected on
@@ -332,7 +347,7 @@ Each directory contains:
332 for storage of data. This will normally be the same as the 347 for storage of data. This will normally be the same as the
333 component_size. This can be written while assembling an 348 component_size. This can be written while assembling an
334 array. If a value less than the current component_size is 349 array. If a value less than the current component_size is
335 written, component_size will be reduced to this value. 350 written, it will be rejected.
336 351
337 352
338An active md device will also contain and entry for each active device 353An active md device will also contain and entry for each active device
@@ -381,6 +396,19 @@ also have
381 'check' and 'repair' will start the appropriate process 396 'check' and 'repair' will start the appropriate process
382 providing the current state is 'idle'. 397 providing the current state is 'idle'.
383 398
399 This file responds to select/poll. Any important change in the value
400 triggers a poll event. Sometimes the value will briefly be
401 "recover" if a recovery seems to be needed, but cannot be
402 achieved. In that case, the transition to "recover" isn't
403 notified, but the transition away is.
404
405 degraded
406 This contains a count of the number of devices by which the
407 arrays is degraded. So an optimal array with show '0'. A
408 single failed/missing drive will show '1', etc.
409 This file responds to select/poll, any increase or decrease
410 in the count of missing devices will trigger an event.
411
384 mismatch_count 412 mismatch_count
385 When performing 'check' and 'repair', and possibly when 413 When performing 'check' and 'repair', and possibly when
386 performing 'resync', md will count the number of errors that are 414 performing 'resync', md will count the number of errors that are
diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt
index a0cda062bc33..7fa7fe71d7a8 100644
--- a/Documentation/networking/bonding.txt
+++ b/Documentation/networking/bonding.txt
@@ -289,35 +289,73 @@ downdelay
289fail_over_mac 289fail_over_mac
290 290
291 Specifies whether active-backup mode should set all slaves to 291 Specifies whether active-backup mode should set all slaves to
292 the same MAC address (the traditional behavior), or, when 292 the same MAC address at enslavement (the traditional
293 enabled, change the bond's MAC address when changing the 293 behavior), or, when enabled, perform special handling of the
294 active interface (i.e., fail over the MAC address itself). 294 bond's MAC address in accordance with the selected policy.
295 295
296 Fail over MAC is useful for devices that cannot ever alter 296 Possible values are:
297 their MAC address, or for devices that refuse incoming 297
298 broadcasts with their own source MAC (which interferes with 298 none or 0
299 the ARP monitor). 299
300 300 This setting disables fail_over_mac, and causes
301 The down side of fail over MAC is that every device on the 301 bonding to set all slaves of an active-backup bond to
302 network must be updated via gratuitous ARP, vs. just updating 302 the same MAC address at enslavement time. This is the
303 a switch or set of switches (which often takes place for any 303 default.
304 traffic, not just ARP traffic, if the switch snoops incoming 304
305 traffic to update its tables) for the traditional method. If 305 active or 1
306 the gratuitous ARP is lost, communication may be disrupted. 306
307 307 The "active" fail_over_mac policy indicates that the
308 When fail over MAC is used in conjuction with the mii monitor, 308 MAC address of the bond should always be the MAC
309 devices which assert link up prior to being able to actually 309 address of the currently active slave. The MAC
310 transmit and receive are particularly susecptible to loss of 310 address of the slaves is not changed; instead, the MAC
311 the gratuitous ARP, and an appropriate updelay setting may be 311 address of the bond changes during a failover.
312 required. 312
313 313 This policy is useful for devices that cannot ever
314 A value of 0 disables fail over MAC, and is the default. A 314 alter their MAC address, or for devices that refuse
315 value of 1 enables fail over MAC. This option is enabled 315 incoming broadcasts with their own source MAC (which
316 automatically if the first slave added cannot change its MAC 316 interferes with the ARP monitor).
317 address. This option may be modified via sysfs only when no 317
318 slaves are present in the bond. 318 The down side of this policy is that every device on
319 319 the network must be updated via gratuitous ARP,
320 This option was added in bonding version 3.2.0. 320 vs. just updating a switch or set of switches (which
321 often takes place for any traffic, not just ARP
322 traffic, if the switch snoops incoming traffic to
323 update its tables) for the traditional method. If the
324 gratuitous ARP is lost, communication may be
325 disrupted.
326
327 When this policy is used in conjuction with the mii
328 monitor, devices which assert link up prior to being
329 able to actually transmit and receive are particularly
330 susecptible to loss of the gratuitous ARP, and an
331 appropriate updelay setting may be required.
332
333 follow or 2
334
335 The "follow" fail_over_mac policy causes the MAC
336 address of the bond to be selected normally (normally
337 the MAC address of the first slave added to the bond).
338 However, the second and subsequent slaves are not set
339 to this MAC address while they are in a backup role; a
340 slave is programmed with the bond's MAC address at
341 failover time (and the formerly active slave receives
342 the newly active slave's MAC address).
343
344 This policy is useful for multiport devices that
345 either become confused or incur a performance penalty
346 when multiple ports are programmed with the same MAC
347 address.
348
349
350 The default policy is none, unless the first slave cannot
351 change its MAC address, in which case the active policy is
352 selected by default.
353
354 This option may be modified via sysfs only when no slaves are
355 present in the bond.
356
357 This option was added in bonding version 3.2.0. The "follow"
358 policy was added in bonding version 3.3.0.
321 359
322lacp_rate 360lacp_rate
323 361
@@ -338,7 +376,8 @@ max_bonds
338 Specifies the number of bonding devices to create for this 376 Specifies the number of bonding devices to create for this
339 instance of the bonding driver. E.g., if max_bonds is 3, and 377 instance of the bonding driver. E.g., if max_bonds is 3, and
340 the bonding driver is not already loaded, then bond0, bond1 378 the bonding driver is not already loaded, then bond0, bond1
341 and bond2 will be created. The default value is 1. 379 and bond2 will be created. The default value is 1. Specifying
380 a value of 0 will load bonding, but will not create any devices.
342 381
343miimon 382miimon
344 383
@@ -501,6 +540,17 @@ mode
501 swapped with the new curr_active_slave that was 540 swapped with the new curr_active_slave that was
502 chosen. 541 chosen.
503 542
543num_grat_arp
544
545 Specifies the number of gratuitous ARPs to be issued after a
546 failover event. One gratuitous ARP is issued immediately after
547 the failover, subsequent ARPs are sent at a rate of one per link
548 monitor interval (arp_interval or miimon, whichever is active).
549
550 The valid range is 0 - 255; the default value is 1. This option
551 affects only the active-backup mode. This option was added for
552 bonding version 3.3.0.
553
504primary 554primary
505 555
506 A string (eth0, eth2, etc) specifying which slave is the 556 A string (eth0, eth2, etc) specifying which slave is the
diff --git a/Documentation/networking/dm9000.txt b/Documentation/networking/dm9000.txt
new file mode 100644
index 000000000000..65df3dea5561
--- /dev/null
+++ b/Documentation/networking/dm9000.txt
@@ -0,0 +1,167 @@
1DM9000 Network driver
2=====================
3
4Copyright 2008 Simtec Electronics,
5 Ben Dooks <ben@simtec.co.uk> <ben-linux@fluff.org>
6
7
8Introduction
9------------
10
11This file describes how to use the DM9000 platform-device based network driver
12that is contained in the files drivers/net/dm9000.c and drivers/net/dm9000.h.
13
14The driver supports three DM9000 variants, the DM9000E which is the first chip
15supported as well as the newer DM9000A and DM9000B devices. It is currently
16maintained and tested by Ben Dooks, who should be CC: to any patches for this
17driver.
18
19
20Defining the platform device
21----------------------------
22
23The minimum set of resources attached to the platform device are as follows:
24
25 1) The physical address of the address register
26 2) The physical address of the data register
27 3) The IRQ line the device's interrupt pin is connected to.
28
29These resources should be specified in that order, as the ordering of the
30two address regions is important (the driver expects these to be address
31and then data).
32
33An example from arch/arm/mach-s3c2410/mach-bast.c is:
34
35static struct resource bast_dm9k_resource[] = {
36 [0] = {
37 .start = S3C2410_CS5 + BAST_PA_DM9000,
38 .end = S3C2410_CS5 + BAST_PA_DM9000 + 3,
39 .flags = IORESOURCE_MEM,
40 },
41 [1] = {
42 .start = S3C2410_CS5 + BAST_PA_DM9000 + 0x40,
43 .end = S3C2410_CS5 + BAST_PA_DM9000 + 0x40 + 0x3f,
44 .flags = IORESOURCE_MEM,
45 },
46 [2] = {
47 .start = IRQ_DM9000,
48 .end = IRQ_DM9000,
49 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
50 }
51};
52
53static struct platform_device bast_device_dm9k = {
54 .name = "dm9000",
55 .id = 0,
56 .num_resources = ARRAY_SIZE(bast_dm9k_resource),
57 .resource = bast_dm9k_resource,
58};
59
60Note the setting of the IRQ trigger flag in bast_dm9k_resource[2].flags,
61as this will generate a warning if it is not present. The trigger from
62the flags field will be passed to request_irq() when registering the IRQ
63handler to ensure that the IRQ is setup correctly.
64
65This shows a typical platform device, without the optional configuration
66platform data supplied. The next example uses the same resources, but adds
67the optional platform data to pass extra configuration data:
68
69static struct dm9000_plat_data bast_dm9k_platdata = {
70 .flags = DM9000_PLATF_16BITONLY,
71};
72
73static struct platform_device bast_device_dm9k = {
74 .name = "dm9000",
75 .id = 0,
76 .num_resources = ARRAY_SIZE(bast_dm9k_resource),
77 .resource = bast_dm9k_resource,
78 .dev = {
79 .platform_data = &bast_dm9k_platdata,
80 }
81};
82
83The platform data is defined in include/linux/dm9000.h and described below.
84
85
86Platform data
87-------------
88
89Extra platform data for the DM9000 can describe the IO bus width to the
90device, whether or not an external PHY is attached to the device and
91the availability of an external configuration EEPROM.
92
93The flags for the platform data .flags field are as follows:
94
95DM9000_PLATF_8BITONLY
96
97 The IO should be done with 8bit operations.
98
99DM9000_PLATF_16BITONLY
100
101 The IO should be done with 16bit operations.
102
103DM9000_PLATF_32BITONLY
104
105 The IO should be done with 32bit operations.
106
107DM9000_PLATF_EXT_PHY
108
109 The chip is connected to an external PHY.
110
111DM9000_PLATF_NO_EEPROM
112
113 This can be used to signify that the board does not have an
114 EEPROM, or that the EEPROM should be hidden from the user.
115
116DM9000_PLATF_SIMPLE_PHY
117
118 Switch to using the simpler PHY polling method which does not
119 try and read the MII PHY state regularly. This is only available
120 when using the internal PHY. See the section on link state polling
121 for more information.
122
123 The config symbol DM9000_FORCE_SIMPLE_PHY_POLL, Kconfig entry
124 "Force simple NSR based PHY polling" allows this flag to be
125 forced on at build time.
126
127
128PHY Link state polling
129----------------------
130
131The driver keeps track of the link state and informs the network core
132about link (carrier) availablilty. This is managed by several methods
133depending on the version of the chip and on which PHY is being used.
134
135For the internal PHY, the original (and currently default) method is
136to read the MII state, either when the status changes if we have the
137necessary interrupt support in the chip or every two seconds via a
138periodic timer.
139
140To reduce the overhead for the internal PHY, there is now the option
141of using the DM9000_FORCE_SIMPLE_PHY_POLL config, or DM9000_PLATF_SIMPLE_PHY
142platform data option to read the summary information without the
143expensive MII accesses. This method is faster, but does not print
144as much information.
145
146When using an external PHY, the driver currently has to poll the MII
147link status as there is no method for getting an interrupt on link change.
148
149
150DM9000A / DM9000B
151-----------------
152
153These chips are functionally similar to the DM9000E and are supported easily
154by the same driver. The features are:
155
156 1) Interrupt on internal PHY state change. This means that the periodic
157 polling of the PHY status may be disabled on these devices when using
158 the internal PHY.
159
160 2) TCP/UDP checksum offloading, which the driver does not currently support.
161
162
163ethtool
164-------
165
166The driver supports the ethtool interface for access to the driver
167state information, the PHY state and the EEPROM.
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 946b66e1b652..d84932650fd3 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -551,8 +551,9 @@ icmp_echo_ignore_broadcasts - BOOLEAN
551icmp_ratelimit - INTEGER 551icmp_ratelimit - INTEGER
552 Limit the maximal rates for sending ICMP packets whose type matches 552 Limit the maximal rates for sending ICMP packets whose type matches
553 icmp_ratemask (see below) to specific targets. 553 icmp_ratemask (see below) to specific targets.
554 0 to disable any limiting, otherwise the maximal rate in jiffies(1) 554 0 to disable any limiting,
555 Default: 100 555 otherwise the minimal space between responses in milliseconds.
556 Default: 1000
556 557
557icmp_ratemask - INTEGER 558icmp_ratemask - INTEGER
558 Mask made of ICMP types for which rates are being limited. 559 Mask made of ICMP types for which rates are being limited.
@@ -1023,11 +1024,23 @@ max_addresses - INTEGER
1023 autoconfigured addresses. 1024 autoconfigured addresses.
1024 Default: 16 1025 Default: 16
1025 1026
1027disable_ipv6 - BOOLEAN
1028 Disable IPv6 operation.
1029 Default: FALSE (enable IPv6 operation)
1030
1031accept_dad - INTEGER
1032 Whether to accept DAD (Duplicate Address Detection).
1033 0: Disable DAD
1034 1: Enable DAD (default)
1035 2: Enable DAD, and disable IPv6 operation if MAC-based duplicate
1036 link-local address has been found.
1037
1026icmp/*: 1038icmp/*:
1027ratelimit - INTEGER 1039ratelimit - INTEGER
1028 Limit the maximal rates for sending ICMPv6 packets. 1040 Limit the maximal rates for sending ICMPv6 packets.
1029 0 to disable any limiting, otherwise the maximal rate in jiffies(1) 1041 0 to disable any limiting,
1030 Default: 100 1042 otherwise the minimal space between responses in milliseconds.
1043 Default: 1000
1031 1044
1032 1045
1033IPv6 Update by: 1046IPv6 Update by:
diff --git a/Documentation/networking/ixgb.txt b/Documentation/networking/ixgb.txt
index 7c98277777eb..a0d0ffb5e584 100644
--- a/Documentation/networking/ixgb.txt
+++ b/Documentation/networking/ixgb.txt
@@ -1,7 +1,7 @@
1Linux* Base Driver for the Intel(R) PRO/10GbE Family of Adapters 1Linux Base Driver for 10 Gigabit Intel(R) Network Connection
2================================================================ 2=============================================================
3 3
4November 17, 2004 4October 9, 2007
5 5
6 6
7Contents 7Contents
@@ -9,94 +9,151 @@ Contents
9 9
10- In This Release 10- In This Release
11- Identifying Your Adapter 11- Identifying Your Adapter
12- Building and Installation
12- Command Line Parameters 13- Command Line Parameters
13- Improving Performance 14- Improving Performance
15- Additional Configurations
16- Known Issues/Troubleshooting
14- Support 17- Support
15 18
16 19
20
17In This Release 21In This Release
18=============== 22===============
19 23
20This file describes the Linux* Base Driver for the Intel(R) PRO/10GbE Family 24This file describes the ixgb Linux Base Driver for the 10 Gigabit Intel(R)
21of Adapters, version 1.0.x. 25Network Connection. This driver includes support for Itanium(R)2-based
26systems.
27
28For questions related to hardware requirements, refer to the documentation
29supplied with your 10 Gigabit adapter. All hardware requirements listed apply
30to use with Linux.
31
32The following features are available in this kernel:
33 - Native VLANs
34 - Channel Bonding (teaming)
35 - SNMP
36
37Channel Bonding documentation can be found in the Linux kernel source:
38/Documentation/networking/bonding.txt
39
40The driver information previously displayed in the /proc filesystem is not
41supported in this release. Alternatively, you can use ethtool (version 1.6
42or later), lspci, and ifconfig to obtain the same information.
43
44Instructions on updating ethtool can be found in the section "Additional
45Configurations" later in this document.
22 46
23For questions related to hardware requirements, refer to the documentation
24supplied with your Intel PRO/10GbE adapter. All hardware requirements listed
25apply to use with Linux.
26 47
27Identifying Your Adapter 48Identifying Your Adapter
28======================== 49========================
29 50
30To verify your Intel adapter is supported, find the board ID number on the 51The following Intel network adapters are compatible with the drivers in this
31adapter. Look for a label that has a barcode and a number in the format 52release:
32A12345-001. 53
54Controller Adapter Name Physical Layer
55---------- ------------ --------------
5682597EX Intel(R) PRO/10GbE LR/SR/CX4 10G Base-LR (1310 nm optical fiber)
57 Server Adapters 10G Base-SR (850 nm optical fiber)
58 10G Base-CX4(twin-axial copper cabling)
59
60For more information on how to identify your adapter, go to the Adapter &
61Driver ID Guide at:
62
63 http://support.intel.com/support/network/sb/CS-012904.htm
64
65
66Building and Installation
67=========================
68
69select m for "Intel(R) PRO/10GbE support" located at:
70 Location:
71 -> Device Drivers
72 -> Network device support (NETDEVICES [=y])
73 -> Ethernet (10000 Mbit) (NETDEV_10000 [=y])
741. make modules && make modules_install
75
762. Load the module:
77
78    modprobe ixgb <parameter>=<value>
79
80 The insmod command can be used if the full
81 path to the driver module is specified. For example:
82
83 insmod /lib/modules/<KERNEL VERSION>/kernel/drivers/net/ixgb/ixgb.ko
84
85 With 2.6 based kernels also make sure that older ixgb drivers are
86 removed from the kernel, before loading the new module:
33 87
34Use the above information and the Adapter & Driver ID Guide at: 88 rmmod ixgb; modprobe ixgb
35 89
36 http://support.intel.com/support/network/adapter/pro100/21397.htm 903. Assign an IP address to the interface by entering the following, where
91 x is the interface number:
37 92
38For the latest Intel network drivers for Linux, go to: 93 ifconfig ethx <IP_address>
94
954. Verify that the interface works. Enter the following, where <IP_address>
96 is the IP address for another machine on the same subnet as the interface
97 that is being tested:
98
99 ping <IP_address>
39 100
40 http://downloadfinder.intel.com/scripts-df/support_intel.asp
41 101
42Command Line Parameters 102Command Line Parameters
43======================= 103=======================
44 104
45If the driver is built as a module, the following optional parameters are 105If the driver is built as a module, the following optional parameters are
46used by entering them on the command line with the modprobe or insmod command 106used by entering them on the command line with the modprobe command using
47using this syntax: 107this syntax:
48 108
49 modprobe ixgb [<option>=<VAL1>,<VAL2>,...] 109 modprobe ixgb [<option>=<VAL1>,<VAL2>,...]
50 110
51 insmod ixgb [<option>=<VAL1>,<VAL2>,...] 111For example, with two 10GbE PCI adapters, entering:
52 112
53For example, with two PRO/10GbE PCI adapters, entering: 113 modprobe ixgb TxDescriptors=80,128
54 114
55 insmod ixgb TxDescriptors=80,128 115loads the ixgb driver with 80 TX resources for the first adapter and 128 TX
56
57loads the ixgb driver with 80 TX resources for the first adapter and 128 TX
58resources for the second adapter. 116resources for the second adapter.
59 117
60The default value for each parameter is generally the recommended setting, 118The default value for each parameter is generally the recommended setting,
61unless otherwise noted. Also, if the driver is statically built into the 119unless otherwise noted.
62kernel, the driver is loaded with the default values for all the parameters.
63Ethtool can be used to change some of the parameters at runtime.
64 120
65FlowControl 121FlowControl
66Valid Range: 0-3 (0=none, 1=Rx only, 2=Tx only, 3=Rx&Tx) 122Valid Range: 0-3 (0=none, 1=Rx only, 2=Tx only, 3=Rx&Tx)
67Default: Read from the EEPROM 123Default: Read from the EEPROM
68 If EEPROM is not detected, default is 3 124 If EEPROM is not detected, default is 1
69 This parameter controls the automatic generation(Tx) and response(Rx) to 125 This parameter controls the automatic generation(Tx) and response(Rx) to
70 Ethernet PAUSE frames. 126 Ethernet PAUSE frames. There are hardware bugs associated with enabling
127 Tx flow control so beware.
71 128
72RxDescriptors 129RxDescriptors
73Valid Range: 64-512 130Valid Range: 64-512
74Default Value: 512 131Default Value: 512
75 This value is the number of receive descriptors allocated by the driver. 132 This value is the number of receive descriptors allocated by the driver.
76 Increasing this value allows the driver to buffer more incoming packets. 133 Increasing this value allows the driver to buffer more incoming packets.
77 Each descriptor is 16 bytes. A receive buffer is also allocated for 134 Each descriptor is 16 bytes. A receive buffer is also allocated for
78 each descriptor and can be either 2048, 4056, 8192, or 16384 bytes, 135 each descriptor and can be either 2048, 4056, 8192, or 16384 bytes,
79 depending on the MTU setting. When the MTU size is 1500 or less, the 136 depending on the MTU setting. When the MTU size is 1500 or less, the
80 receive buffer size is 2048 bytes. When the MTU is greater than 1500 the 137 receive buffer size is 2048 bytes. When the MTU is greater than 1500 the
81 receive buffer size will be either 4056, 8192, or 16384 bytes. The 138 receive buffer size will be either 4056, 8192, or 16384 bytes. The
82 maximum MTU size is 16114. 139 maximum MTU size is 16114.
83 140
84RxIntDelay 141RxIntDelay
85Valid Range: 0-65535 (0=off) 142Valid Range: 0-65535 (0=off)
86Default Value: 6 143Default Value: 72
87 This value delays the generation of receive interrupts in units of 144 This value delays the generation of receive interrupts in units of
88 0.8192 microseconds. Receive interrupt reduction can improve CPU 145 0.8192 microseconds. Receive interrupt reduction can improve CPU
89 efficiency if properly tuned for specific network traffic. Increasing 146 efficiency if properly tuned for specific network traffic. Increasing
90 this value adds extra latency to frame reception and can end up 147 this value adds extra latency to frame reception and can end up
91 decreasing the throughput of TCP traffic. If the system is reporting 148 decreasing the throughput of TCP traffic. If the system is reporting
92 dropped receives, this value may be set too high, causing the driver to 149 dropped receives, this value may be set too high, causing the driver to
93 run out of available receive descriptors. 150 run out of available receive descriptors.
94 151
95TxDescriptors 152TxDescriptors
96Valid Range: 64-4096 153Valid Range: 64-4096
97Default Value: 256 154Default Value: 256
98 This value is the number of transmit descriptors allocated by the driver. 155 This value is the number of transmit descriptors allocated by the driver.
99 Increasing this value allows the driver to queue more transmits. Each 156 Increasing this value allows the driver to queue more transmits. Each
100 descriptor is 16 bytes. 157 descriptor is 16 bytes.
101 158
102XsumRX 159XsumRX
@@ -105,51 +162,49 @@ Default Value: 1
105 A value of '1' indicates that the driver should enable IP checksum 162 A value of '1' indicates that the driver should enable IP checksum
106 offload for received packets (both UDP and TCP) to the adapter hardware. 163 offload for received packets (both UDP and TCP) to the adapter hardware.
107 164
108XsumTX
109Valid Range: 0-1
110Default Value: 1
111 A value of '1' indicates that the driver should enable IP checksum
112 offload for transmitted packets (both UDP and TCP) to the adapter
113 hardware.
114 165
115Improving Performance 166Improving Performance
116===================== 167=====================
117 168
118With the Intel PRO/10 GbE adapter, the default Linux configuration will very 169With the 10 Gigabit server adapters, the default Linux configuration will
119likely limit the total available throughput artificially. There is a set of 170very likely limit the total available throughput artificially. There is a set
120things that when applied together increase the ability of Linux to transmit 171of configuration changes that, when applied together, will increase the ability
121and receive data. The following enhancements were originally acquired from 172of Linux to transmit and receive data. The following enhancements were
122settings published at http://www.spec.org/web99 for various submitted results 173originally acquired from settings published at http://www.spec.org/web99/ for
123using Linux. 174various submitted results using Linux.
124 175
125NOTE: These changes are only suggestions, and serve as a starting point for 176NOTE: These changes are only suggestions, and serve as a starting point for
126tuning your network performance. 177 tuning your network performance.
127 178
128The changes are made in three major ways, listed in order of greatest effect: 179The changes are made in three major ways, listed in order of greatest effect:
129- Use ifconfig to modify the mtu (maximum transmission unit) and the txqueuelen 180- Use ifconfig to modify the mtu (maximum transmission unit) and the txqueuelen
130 parameter. 181 parameter.
131- Use sysctl to modify /proc parameters (essentially kernel tuning) 182- Use sysctl to modify /proc parameters (essentially kernel tuning)
132- Use setpci to modify the MMRBC field in PCI-X configuration space to increase 183- Use setpci to modify the MMRBC field in PCI-X configuration space to increase
133 transmit burst lengths on the bus. 184 transmit burst lengths on the bus.
134 185
135NOTE: setpci modifies the adapter's configuration registers to allow it to read 186NOTE: setpci modifies the adapter's configuration registers to allow it to read
136up to 4k bytes at a time (for transmits). However, for some systems the 187up to 4k bytes at a time (for transmits). However, for some systems the
137behavior after modifying this register may be undefined (possibly errors of some 188behavior after modifying this register may be undefined (possibly errors of
138kind). A power-cycle, hard reset or explicitly setting the e6 register back to 189some kind). A power-cycle, hard reset or explicitly setting the e6 register
13922 (setpci -d 8086:1048 e6.b=22) may be required to get back to a stable 190back to 22 (setpci -d 8086:1a48 e6.b=22) may be required to get back to a
140configuration. 191stable configuration.
141 192
142- COPY these lines and paste them into ixgb_perf.sh: 193- COPY these lines and paste them into ixgb_perf.sh:
143#!/bin/bash 194#!/bin/bash
144echo "configuring network performance , edit this file to change the interface" 195echo "configuring network performance , edit this file to change the interface
196or device ID of 10GbE card"
145# set mmrbc to 4k reads, modify only Intel 10GbE device IDs 197# set mmrbc to 4k reads, modify only Intel 10GbE device IDs
146setpci -d 8086:1048 e6.b=2e 198# replace 1a48 with appropriate 10GbE device's ID installed on the system,
147# set the MTU (max transmission unit) - it requires your switch and clients to change too! 199# if needed.
200setpci -d 8086:1a48 e6.b=2e
201# set the MTU (max transmission unit) - it requires your switch and clients
202# to change as well.
148# set the txqueuelen 203# set the txqueuelen
149# your ixgb adapter should be loaded as eth1 for this to work, change if needed 204# your ixgb adapter should be loaded as eth1 for this to work, change if needed
150ifconfig eth1 mtu 9000 txqueuelen 1000 up 205ifconfig eth1 mtu 9000 txqueuelen 1000 up
151# call the sysctl utility to modify /proc/sys entries 206# call the sysctl utility to modify /proc/sys entries
152sysctl -p ./sysctl_ixgb.conf 207sysctl -p ./sysctl_ixgb.conf
153- END ixgb_perf.sh 208- END ixgb_perf.sh
154 209
155- COPY these lines and paste them into sysctl_ixgb.conf: 210- COPY these lines and paste them into sysctl_ixgb.conf:
@@ -159,54 +214,220 @@ sysctl -p ./sysctl_ixgb.conf
159# several network benchmark tests, your mileage may vary 214# several network benchmark tests, your mileage may vary
160 215
161### IPV4 specific settings 216### IPV4 specific settings
162net.ipv4.tcp_timestamps = 0 # turns TCP timestamp support off, default 1, reduces CPU use 217# turn TCP timestamp support off, default 1, reduces CPU use
163net.ipv4.tcp_sack = 0 # turn SACK support off, default on 218net.ipv4.tcp_timestamps = 0
164# on systems with a VERY fast bus -> memory interface this is the big gainer 219# turn SACK support off, default on
165net.ipv4.tcp_rmem = 10000000 10000000 10000000 # sets min/default/max TCP read buffer, default 4096 87380 174760 220# on systems with a VERY fast bus -> memory interface this is the big gainer
166net.ipv4.tcp_wmem = 10000000 10000000 10000000 # sets min/pressure/max TCP write buffer, default 4096 16384 131072 221net.ipv4.tcp_sack = 0
167net.ipv4.tcp_mem = 10000000 10000000 10000000 # sets min/pressure/max TCP buffer space, default 31744 32256 32768 222# set min/default/max TCP read buffer, default 4096 87380 174760
223net.ipv4.tcp_rmem = 10000000 10000000 10000000
224# set min/pressure/max TCP write buffer, default 4096 16384 131072
225net.ipv4.tcp_wmem = 10000000 10000000 10000000
226# set min/pressure/max TCP buffer space, default 31744 32256 32768
227net.ipv4.tcp_mem = 10000000 10000000 10000000
168 228
169### CORE settings (mostly for socket and UDP effect) 229### CORE settings (mostly for socket and UDP effect)
170net.core.rmem_max = 524287 # maximum receive socket buffer size, default 131071 230# set maximum receive socket buffer size, default 131071
171net.core.wmem_max = 524287 # maximum send socket buffer size, default 131071 231net.core.rmem_max = 524287
172net.core.rmem_default = 524287 # default receive socket buffer size, default 65535 232# set maximum send socket buffer size, default 131071
173net.core.wmem_default = 524287 # default send socket buffer size, default 65535 233net.core.wmem_max = 524287
174net.core.optmem_max = 524287 # maximum amount of option memory buffers, default 10240 234# set default receive socket buffer size, default 65535
175net.core.netdev_max_backlog = 300000 # number of unprocessed input packets before kernel starts dropping them, default 300 235net.core.rmem_default = 524287
236# set default send socket buffer size, default 65535
237net.core.wmem_default = 524287
238# set maximum amount of option memory buffers, default 10240
239net.core.optmem_max = 524287
240# set number of unprocessed input packets before kernel starts dropping them; default 300
241net.core.netdev_max_backlog = 300000
176- END sysctl_ixgb.conf 242- END sysctl_ixgb.conf
177 243
178Edit the ixgb_perf.sh script if necessary to change eth1 to whatever interface 244Edit the ixgb_perf.sh script if necessary to change eth1 to whatever interface
179your ixgb driver is using. 245your ixgb driver is using and/or replace '1a48' with appropriate 10GbE device's
246ID installed on the system.
180 247
181NOTE: Unless these scripts are added to the boot process, these changes will 248NOTE: Unless these scripts are added to the boot process, these changes will
182only last only until the next system reboot. 249 only last only until the next system reboot.
183 250
184 251
185Resolving Slow UDP Traffic 252Resolving Slow UDP Traffic
186-------------------------- 253--------------------------
254If your server does not seem to be able to receive UDP traffic as fast as it
255can receive TCP traffic, it could be because Linux, by default, does not set
256the network stack buffers as large as they need to be to support high UDP
257transfer rates. One way to alleviate this problem is to allow more memory to
258be used by the IP stack to store incoming data.
187 259
188If your server does not seem to be able to receive UDP traffic as fast as it 260For instance, use the commands:
189can receive TCP traffic, it could be because Linux, by default, does not set
190the network stack buffers as large as they need to be to support high UDP
191transfer rates. One way to alleviate this problem is to allow more memory to
192be used by the IP stack to store incoming data.
193
194For instance, use the commands:
195 sysctl -w net.core.rmem_max=262143 261 sysctl -w net.core.rmem_max=262143
196and 262and
197 sysctl -w net.core.rmem_default=262143 263 sysctl -w net.core.rmem_default=262143
198to increase the read buffer memory max and default to 262143 (256k - 1) from 264to increase the read buffer memory max and default to 262143 (256k - 1) from
199defaults of max=131071 (128k - 1) and default=65535 (64k - 1). These variables 265defaults of max=131071 (128k - 1) and default=65535 (64k - 1). These variables
200will increase the amount of memory used by the network stack for receives, and 266will increase the amount of memory used by the network stack for receives, and
201can be increased significantly more if necessary for your application. 267can be increased significantly more if necessary for your application.
202 268
269
270Additional Configurations
271=========================
272
273 Configuring the Driver on Different Distributions
274 -------------------------------------------------
275 Configuring a network driver to load properly when the system is started is
276 distribution dependent. Typically, the configuration process involves adding
277 an alias line to /etc/modprobe.conf as well as editing other system startup
278 scripts and/or configuration files. Many popular Linux distributions ship
279 with tools to make these changes for you. To learn the proper way to
280 configure a network device for your system, refer to your distribution
281 documentation. If during this process you are asked for the driver or module
282 name, the name for the Linux Base Driver for the Intel 10GbE Family of
283 Adapters is ixgb.
284
285 Viewing Link Messages
286 ---------------------
287 Link messages will not be displayed to the console if the distribution is
288 restricting system messages. In order to see network driver link messages on
289 your console, set dmesg to eight by entering the following:
290
291 dmesg -n 8
292
293 NOTE: This setting is not saved across reboots.
294
295
296 Jumbo Frames
297 ------------
298 The driver supports Jumbo Frames for all adapters. Jumbo Frames support is
299 enabled by changing the MTU to a value larger than the default of 1500.
300 The maximum value for the MTU is 16114. Use the ifconfig command to
301 increase the MTU size. For example:
302
303 ifconfig ethx mtu 9000 up
304
305 The maximum MTU setting for Jumbo Frames is 16114. This value coincides
306 with the maximum Jumbo Frames size of 16128.
307
308
309 Ethtool
310 -------
311 The driver utilizes the ethtool interface for driver configuration and
312 diagnostics, as well as displaying statistical information. Ethtool
313 version 1.6 or later is required for this functionality.
314
315 The latest release of ethtool can be found from
316 http://sourceforge.net/projects/gkernel
317
318 NOTE: Ethtool 1.6 only supports a limited set of ethtool options. Support
319 for a more complete ethtool feature set can be enabled by upgrading
320 to the latest version.
321
322
323 NAPI
324 ----
325
326 NAPI (Rx polling mode) is supported in the ixgb driver. NAPI is enabled
327 or disabled based on the configuration of the kernel. see CONFIG_IXGB_NAPI
328
329 See www.cyberus.ca/~hadi/usenix-paper.tgz for more information on NAPI.
330
331
332Known Issues/Troubleshooting
333============================
334
335 NOTE: After installing the driver, if your Intel Network Connection is not
336 working, verify in the "In This Release" section of the readme that you have
337 installed the correct driver.
338
339 Intel(R) PRO/10GbE CX4 Server Adapter Cable Interoperability Issue with
340 Fujitsu XENPAK Module in SmartBits Chassis
341 ---------------------------------------------------------------------
342 Excessive CRC errors may be observed if the Intel(R) PRO/10GbE CX4
343 Server adapter is connected to a Fujitsu XENPAK CX4 module in a SmartBits
344 chassis using 15 m/24AWG cable assemblies manufactured by Fujitsu or Leoni.
345 The CRC errors may be received either by the Intel(R) PRO/10GbE CX4
346 Server adapter or the SmartBits. If this situation occurs using a different
347 cable assembly may resolve the issue.
348
349 CX4 Server Adapter Cable Interoperability Issues with HP Procurve 3400cl
350 Switch Port
351 ------------------------------------------------------------------------
352 Excessive CRC errors may be observed if the Intel(R) PRO/10GbE CX4 Server
353 adapter is connected to an HP Procurve 3400cl switch port using short cables
354 (1 m or shorter). If this situation occurs, using a longer cable may resolve
355 the issue.
356
357 Excessive CRC errors may be observed using Fujitsu 24AWG cable assemblies that
358 Are 10 m or longer or where using a Leoni 15 m/24AWG cable assembly. The CRC
359 errors may be received either by the CX4 Server adapter or at the switch. If
360 this situation occurs, using a different cable assembly may resolve the issue.
361
362
363 Jumbo Frames System Requirement
364 -------------------------------
365 Memory allocation failures have been observed on Linux systems with 64 MB
366 of RAM or less that are running Jumbo Frames. If you are using Jumbo
367 Frames, your system may require more than the advertised minimum
368 requirement of 64 MB of system memory.
369
370
371 Performance Degradation with Jumbo Frames
372 -----------------------------------------
373 Degradation in throughput performance may be observed in some Jumbo frames
374 environments. If this is observed, increasing the application's socket buffer
375 size and/or increasing the /proc/sys/net/ipv4/tcp_*mem entry values may help.
376 See the specific application manual and /usr/src/linux*/Documentation/
377 networking/ip-sysctl.txt for more details.
378
379
380 Allocating Rx Buffers when Using Jumbo Frames
381 ---------------------------------------------
382 Allocating Rx buffers when using Jumbo Frames on 2.6.x kernels may fail if
383 the available memory is heavily fragmented. This issue may be seen with PCI-X
384 adapters or with packet split disabled. This can be reduced or eliminated
385 by changing the amount of available memory for receive buffer allocation, by
386 increasing /proc/sys/vm/min_free_kbytes.
387
388
389 Multiple Interfaces on Same Ethernet Broadcast Network
390 ------------------------------------------------------
391 Due to the default ARP behavior on Linux, it is not possible to have
392 one system on two IP networks in the same Ethernet broadcast domain
393 (non-partitioned switch) behave as expected. All Ethernet interfaces
394 will respond to IP traffic for any IP address assigned to the system.
395 This results in unbalanced receive traffic.
396
397 If you have multiple interfaces in a server, do either of the following:
398
399 - Turn on ARP filtering by entering:
400 echo 1 > /proc/sys/net/ipv4/conf/all/arp_filter
401
402 - Install the interfaces in separate broadcast domains - either in
403 different switches or in a switch partitioned to VLANs.
404
405
406 UDP Stress Test Dropped Packet Issue
407 --------------------------------------
408 Under small packets UDP stress test with 10GbE driver, the Linux system
409 may drop UDP packets due to the fullness of socket buffers. You may want
410 to change the driver's Flow Control variables to the minimum value for
411 controlling packet reception.
412
413
414 Tx Hangs Possible Under Stress
415 ------------------------------
416 Under stress conditions, if TX hangs occur, turning off TSO
417 "ethtool -K eth0 tso off" may resolve the problem.
418
419
203Support 420Support
204======= 421=======
205 422
206For general information and support, go to the Intel support website at: 423For general information, go to the Intel support website at:
207 424
208 http://support.intel.com 425 http://support.intel.com
209 426
427or the Intel Wired Networking project hosted by Sourceforge at:
428
429 http://sourceforge.net/projects/e1000
430
210If an issue is identified with the released source code on the supported 431If an issue is identified with the released source code on the supported
211kernel with a supported adapter, email the specific information related to 432kernel with a supported adapter, email the specific information related
212the issue to linux.nics@intel.com. 433to the issue to e1000-devel@lists.sf.net
diff --git a/Documentation/networking/mac80211_hwsim/README b/Documentation/networking/mac80211_hwsim/README
new file mode 100644
index 000000000000..2ff8ccb8dc37
--- /dev/null
+++ b/Documentation/networking/mac80211_hwsim/README
@@ -0,0 +1,67 @@
1mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
2Copyright (c) 2008, Jouni Malinen <j@w1.fi>
3
4This program is free software; you can redistribute it and/or modify
5it under the terms of the GNU General Public License version 2 as
6published by the Free Software Foundation.
7
8
9Introduction
10
11mac80211_hwsim is a Linux kernel module that can be used to simulate
12arbitrary number of IEEE 802.11 radios for mac80211. It can be used to
13test most of the mac80211 functionality and user space tools (e.g.,
14hostapd and wpa_supplicant) in a way that matches very closely with
15the normal case of using real WLAN hardware. From the mac80211 view
16point, mac80211_hwsim is yet another hardware driver, i.e., no changes
17to mac80211 are needed to use this testing tool.
18
19The main goal for mac80211_hwsim is to make it easier for developers
20to test their code and work with new features to mac80211, hostapd,
21and wpa_supplicant. The simulated radios do not have the limitations
22of real hardware, so it is easy to generate an arbitrary test setup
23and always reproduce the same setup for future tests. In addition,
24since all radio operation is simulated, any channel can be used in
25tests regardless of regulatory rules.
26
27mac80211_hwsim kernel module has a parameter 'radios' that can be used
28to select how many radios are simulated (default 2). This allows
29configuration of both very simply setups (e.g., just a single access
30point and a station) or large scale tests (multiple access points with
31hundreds of stations).
32
33mac80211_hwsim works by tracking the current channel of each virtual
34radio and copying all transmitted frames to all other radios that are
35currently enabled and on the same channel as the transmitting
36radio. Software encryption in mac80211 is used so that the frames are
37actually encrypted over the virtual air interface to allow more
38complete testing of encryption.
39
40A global monitoring netdev, hwsim#, is created independent of
41mac80211. This interface can be used to monitor all transmitted frames
42regardless of channel.
43
44
45Simple example
46
47This example shows how to use mac80211_hwsim to simulate two radios:
48one to act as an access point and the other as a station that
49associates with the AP. hostapd and wpa_supplicant are used to take
50care of WPA2-PSK authentication. In addition, hostapd is also
51processing access point side of association.
52
53Please note that the current Linux kernel does not enable AP mode, so a
54simple patch is needed to enable AP mode selection:
55http://johannes.sipsolutions.net/patches/kernel/all/LATEST/006-allow-ap-vlan-modes.patch
56
57
58# Build mac80211_hwsim as part of kernel configuration
59
60# Load the module
61modprobe mac80211_hwsim
62
63# Run hostapd (AP) for wlan0
64hostapd hostapd.conf
65
66# Run wpa_supplicant (station) for wlan1
67wpa_supplicant -Dwext -iwlan1 -c wpa_supplicant.conf
diff --git a/Documentation/networking/mac80211_hwsim/hostapd.conf b/Documentation/networking/mac80211_hwsim/hostapd.conf
new file mode 100644
index 000000000000..08cde7e35f2e
--- /dev/null
+++ b/Documentation/networking/mac80211_hwsim/hostapd.conf
@@ -0,0 +1,11 @@
1interface=wlan0
2driver=nl80211
3
4hw_mode=g
5channel=1
6ssid=mac80211 test
7
8wpa=2
9wpa_key_mgmt=WPA-PSK
10wpa_pairwise=CCMP
11wpa_passphrase=12345678
diff --git a/Documentation/networking/mac80211_hwsim/wpa_supplicant.conf b/Documentation/networking/mac80211_hwsim/wpa_supplicant.conf
new file mode 100644
index 000000000000..299128cff035
--- /dev/null
+++ b/Documentation/networking/mac80211_hwsim/wpa_supplicant.conf
@@ -0,0 +1,10 @@
1ctrl_interface=/var/run/wpa_supplicant
2
3network={
4 ssid="mac80211 test"
5 psk="12345678"
6 key_mgmt=WPA-PSK
7 proto=WPA2
8 pairwise=CCMP
9 group=CCMP
10}
diff --git a/Documentation/networking/multiqueue.txt b/Documentation/networking/multiqueue.txt
index ea5a42e8f79f..d391ea631141 100644
--- a/Documentation/networking/multiqueue.txt
+++ b/Documentation/networking/multiqueue.txt
@@ -3,19 +3,11 @@
3 =========================================== 3 ===========================================
4 4
5Section 1: Base driver requirements for implementing multiqueue support 5Section 1: Base driver requirements for implementing multiqueue support
6Section 2: Qdisc support for multiqueue devices
7Section 3: Brief howto using PRIO or RR for multiqueue devices
8
9 6
10Intro: Kernel support for multiqueue devices 7Intro: Kernel support for multiqueue devices
11--------------------------------------------------------- 8---------------------------------------------------------
12 9
13Kernel support for multiqueue devices is only an API that is presented to the 10Kernel support for multiqueue devices is always present.
14netdevice layer for base drivers to implement. This feature is part of the
15core networking stack, and all network devices will be running on the
16multiqueue-aware stack. If a base driver only has one queue, then these
17changes are transparent to that driver.
18
19 11
20Section 1: Base driver requirements for implementing multiqueue support 12Section 1: Base driver requirements for implementing multiqueue support
21----------------------------------------------------------------------- 13-----------------------------------------------------------------------
@@ -32,84 +24,4 @@ netif_{start|stop|wake}_subqueue() functions to manage each queue while the
32device is still operational. netdev->queue_lock is still used when the device 24device is still operational. netdev->queue_lock is still used when the device
33comes online or when it's completely shut down (unregister_netdev(), etc.). 25comes online or when it's completely shut down (unregister_netdev(), etc.).
34 26
35Finally, the base driver should indicate that it is a multiqueue device. The
36feature flag NETIF_F_MULTI_QUEUE should be added to the netdev->features
37bitmap on device initialization. Below is an example from e1000:
38
39#ifdef CONFIG_E1000_MQ
40 if ( (adapter->hw.mac.type == e1000_82571) ||
41 (adapter->hw.mac.type == e1000_82572) ||
42 (adapter->hw.mac.type == e1000_80003es2lan))
43 netdev->features |= NETIF_F_MULTI_QUEUE;
44#endif
45
46
47Section 2: Qdisc support for multiqueue devices
48-----------------------------------------------
49
50Currently two qdiscs support multiqueue devices. A new round-robin qdisc,
51sch_rr, and sch_prio. The qdisc is responsible for classifying the skb's to
52bands and queues, and will store the queue mapping into skb->queue_mapping.
53Use this field in the base driver to determine which queue to send the skb
54to.
55
56sch_rr has been added for hardware that doesn't want scheduling policies from
57software, so it's a straight round-robin qdisc. It uses the same syntax and
58classification priomap that sch_prio uses, so it should be intuitive to
59configure for people who've used sch_prio.
60
61In order to utilitize the multiqueue features of the qdiscs, the network
62device layer needs to enable multiple queue support. This can be done by
63selecting NETDEVICES_MULTIQUEUE under Drivers.
64
65The PRIO qdisc naturally plugs into a multiqueue device. If
66NETDEVICES_MULTIQUEUE is selected, then on qdisc load, the number of
67bands requested is compared to the number of queues on the hardware. If they
68are equal, it sets a one-to-one mapping up between the queues and bands. If
69they're not equal, it will not load the qdisc. This is the same behavior
70for RR. Once the association is made, any skb that is classified will have
71skb->queue_mapping set, which will allow the driver to properly queue skb's
72to multiple queues.
73
74
75Section 3: Brief howto using PRIO and RR for multiqueue devices
76---------------------------------------------------------------
77
78The userspace command 'tc,' part of the iproute2 package, is used to configure
79qdiscs. To add the PRIO qdisc to your network device, assuming the device is
80called eth0, run the following command:
81
82# tc qdisc add dev eth0 root handle 1: prio bands 4 multiqueue
83
84This will create 4 bands, 0 being highest priority, and associate those bands
85to the queues on your NIC. Assuming eth0 has 4 Tx queues, the band mapping
86would look like:
87
88band 0 => queue 0
89band 1 => queue 1
90band 2 => queue 2
91band 3 => queue 3
92
93Traffic will begin flowing through each queue if your TOS values are assigning
94traffic across the various bands. For example, ssh traffic will always try to
95go out band 0 based on TOS -> Linux priority conversion (realtime traffic),
96so it will be sent out queue 0. ICMP traffic (pings) fall into the "normal"
97traffic classification, which is band 1. Therefore pings will be send out
98queue 1 on the NIC.
99
100Note the use of the multiqueue keyword. This is only in versions of iproute2
101that support multiqueue networking devices; if this is omitted when loading
102a qdisc onto a multiqueue device, the qdisc will load and operate the same
103if it were loaded onto a single-queue device (i.e. - sends all traffic to
104queue 0).
105
106Another alternative to multiqueue band allocation can be done by using the
107multiqueue option and specify 0 bands. If this is the case, the qdisc will
108allocate the number of bands to equal the number of queues that the device
109reports, and bring the qdisc online.
110
111The behavior of tc filters remains the same, where it will override TOS priority
112classification.
113
114
115Author: Peter P. Waskiewicz Jr. <peter.p.waskiewicz.jr@intel.com> 27Author: Peter P. Waskiewicz Jr. <peter.p.waskiewicz.jr@intel.com>
diff --git a/Documentation/networking/s2io.txt b/Documentation/networking/s2io.txt
index 1e28e2ddb90a..c3d6b4d5d014 100644
--- a/Documentation/networking/s2io.txt
+++ b/Documentation/networking/s2io.txt
@@ -52,13 +52,10 @@ d. MSI/MSI-X. Can be enabled on platforms which support this feature
52(IA64, Xeon) resulting in noticeable performance improvement(upto 7% 52(IA64, Xeon) resulting in noticeable performance improvement(upto 7%
53on certain platforms). 53on certain platforms).
54 54
55e. NAPI. Compile-time option(CONFIG_S2IO_NAPI) for better Rx interrupt 55e. Statistics. Comprehensive MAC-level and software statistics displayed
56moderation.
57
58f. Statistics. Comprehensive MAC-level and software statistics displayed
59using "ethtool -S" option. 56using "ethtool -S" option.
60 57
61g. Multi-FIFO/Ring. Supports up to 8 transmit queues and receive rings, 58f. Multi-FIFO/Ring. Supports up to 8 transmit queues and receive rings,
62with multiple steering options. 59with multiple steering options.
63 60
644. Command line parameters 614. Command line parameters
diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt
index de2e5c05d6e7..aee243a846a2 100644
--- a/Documentation/powerpc/booting-without-of.txt
+++ b/Documentation/powerpc/booting-without-of.txt
@@ -41,12 +41,24 @@ Table of Contents
41 VI - System-on-a-chip devices and nodes 41 VI - System-on-a-chip devices and nodes
42 1) Defining child nodes of an SOC 42 1) Defining child nodes of an SOC
43 2) Representing devices without a current OF specification 43 2) Representing devices without a current OF specification
44 a) PHY nodes 44 a) MDIO IO device
45 b) Interrupt controllers 45 b) Gianfar-compatible ethernet nodes
46 c) CFI or JEDEC memory-mapped NOR flash 46 c) PHY nodes
47 d) 4xx/Axon EMAC ethernet nodes 47 d) Interrupt controllers
48 e) Xilinx IP cores 48 e) I2C
49 f) USB EHCI controllers 49 f) Freescale SOC USB controllers
50 g) Freescale SOC SEC Security Engines
51 h) Board Control and Status (BCSR)
52 i) Freescale QUICC Engine module (QE)
53 j) CFI or JEDEC memory-mapped NOR flash
54 k) Global Utilities Block
55 l) Freescale Communications Processor Module
56 m) Chipselect/Local Bus
57 n) 4xx/Axon EMAC ethernet nodes
58 o) Xilinx IP cores
59 p) Freescale Synchronous Serial Interface
60 q) USB EHCI controllers
61 r) MDIO on GPIOs
50 62
51 VII - Marvell Discovery mv64[345]6x System Controller chips 63 VII - Marvell Discovery mv64[345]6x System Controller chips
52 1) The /system-controller node 64 1) The /system-controller node
@@ -1815,6 +1827,60 @@ platforms are moved over to use the flattened-device-tree model.
1815 big-endian; 1827 big-endian;
1816 }; 1828 };
1817 1829
1830 r) Freescale Display Interface Unit
1831
1832 The Freescale DIU is a LCD controller, with proper hardware, it can also
1833 drive DVI monitors.
1834
1835 Required properties:
1836 - compatible : should be "fsl-diu".
1837 - reg : should contain at least address and length of the DIU register
1838 set.
1839 - Interrupts : one DIU interrupt should be describe here.
1840
1841 Example (MPC8610HPCD)
1842 display@2c000 {
1843 compatible = "fsl,diu";
1844 reg = <0x2c000 100>;
1845 interrupts = <72 2>;
1846 interrupt-parent = <&mpic>;
1847 };
1848
1849 s) Freescale on board FPGA
1850
1851 This is the memory-mapped registers for on board FPGA.
1852
1853 Required properities:
1854 - compatible : should be "fsl,fpga-pixis".
1855 - reg : should contain the address and the lenght of the FPPGA register
1856 set.
1857
1858 Example (MPC8610HPCD)
1859 board-control@e8000000 {
1860 compatible = "fsl,fpga-pixis";
1861 reg = <0xe8000000 32>;
1862 };
1863
1864 r) MDIO on GPIOs
1865
1866 Currently defined compatibles:
1867 - virtual,gpio-mdio
1868
1869 MDC and MDIO lines connected to GPIO controllers are listed in the
1870 gpios property as described in section VIII.1 in the following order:
1871
1872 MDC, MDIO.
1873
1874 Example:
1875
1876 mdio {
1877 compatible = "virtual,mdio-gpio";
1878 #address-cells = <1>;
1879 #size-cells = <0>;
1880 gpios = <&qe_pio_a 11
1881 &qe_pio_c 6>;
1882 };
1883
1818VII - Marvell Discovery mv64[345]6x System Controller chips 1884VII - Marvell Discovery mv64[345]6x System Controller chips
1819=========================================================== 1885===========================================================
1820 1886
diff --git a/Documentation/rfkill.txt b/Documentation/rfkill.txt
index a83ff23cd68c..0843ed0163a5 100644
--- a/Documentation/rfkill.txt
+++ b/Documentation/rfkill.txt
@@ -1,89 +1,528 @@
1rfkill - RF switch subsystem support 1rfkill - RF switch subsystem support
2==================================== 2====================================
3 3
41 Implementation details 41 Introduction
52 Driver support 52 Implementation details
63 Userspace support 63 Kernel driver guidelines
73.1 wireless device drivers
83.2 platform/switch drivers
93.3 input device drivers
104 Kernel API
115 Userspace support
7 12
8===============================================================================
91: Implementation details
10 13
11The rfkill switch subsystem offers support for keys often found on laptops 141. Introduction:
12to enable wireless devices like WiFi and Bluetooth. 15
16The rfkill switch subsystem exists to add a generic interface to circuitry that
17can enable or disable the signal output of a wireless *transmitter* of any
18type. By far, the most common use is to disable radio-frequency transmitters.
13 19
14This is done by providing the user 3 possibilities: 20Note that disabling the signal output means that the the transmitter is to be
15 1 - The rfkill system handles all events; userspace is not aware of events. 21made to not emit any energy when "blocked". rfkill is not about blocking data
16 2 - The rfkill system handles all events; userspace is informed about the events. 22transmissions, it is about blocking energy emission.
17 3 - The rfkill system does not handle events; userspace handles all events.
18 23
19The buttons to enable and disable the wireless radios are important in 24The rfkill subsystem offers support for keys and switches often found on
25laptops to enable wireless devices like WiFi and Bluetooth, so that these keys
26and switches actually perform an action in all wireless devices of a given type
27attached to the system.
28
29The buttons to enable and disable the wireless transmitters are important in
20situations where the user is for example using his laptop on a location where 30situations where the user is for example using his laptop on a location where
21wireless radios _must_ be disabled (e.g. airplanes). 31radio-frequency transmitters _must_ be disabled (e.g. airplanes).
22Because of this requirement, userspace support for the keys should not be 32
23made mandatory. Because userspace might want to perform some additional smarter 33Because of this requirement, userspace support for the keys should not be made
24tasks when the key is pressed, rfkill still provides userspace the possibility 34mandatory. Because userspace might want to perform some additional smarter
25to take over the task to handle the key events. 35tasks when the key is pressed, rfkill provides userspace the possibility to
36take over the task to handle the key events.
37
38===============================================================================
392: Implementation details
40
41The rfkill subsystem is composed of various components: the rfkill class, the
42rfkill-input module (an input layer handler), and some specific input layer
43events.
44
45The rfkill class provides kernel drivers with an interface that allows them to
46know when they should enable or disable a wireless network device transmitter.
47This is enabled by the CONFIG_RFKILL Kconfig option.
48
49The rfkill class support makes sure userspace will be notified of all state
50changes on rfkill devices through uevents. It provides a notification chain
51for interested parties in the kernel to also get notified of rfkill state
52changes in other drivers. It creates several sysfs entries which can be used
53by userspace. See section "Userspace support".
54
55The rfkill-input module provides the kernel with the ability to implement a
56basic response when the user presses a key or button (or toggles a switch)
57related to rfkill functionality. It is an in-kernel implementation of default
58policy of reacting to rfkill-related input events and neither mandatory nor
59required for wireless drivers to operate. It is enabled by the
60CONFIG_RFKILL_INPUT Kconfig option.
61
62rfkill-input is a rfkill-related events input layer handler. This handler will
63listen to all rfkill key events and will change the rfkill state of the
64wireless devices accordingly. With this option enabled userspace could either
65do nothing or simply perform monitoring tasks.
66
67The rfkill-input module also provides EPO (emergency power-off) functionality
68for all wireless transmitters. This function cannot be overridden, and it is
69always active. rfkill EPO is related to *_RFKILL_ALL input layer events.
70
71
72Important terms for the rfkill subsystem:
73
74In order to avoid confusion, we avoid the term "switch" in rfkill when it is
75referring to an electronic control circuit that enables or disables a
76transmitter. We reserve it for the physical device a human manipulates
77(which is an input device, by the way):
78
79rfkill switch:
80
81 A physical device a human manipulates. Its state can be perceived by
82 the kernel either directly (through a GPIO pin, ACPI GPE) or by its
83 effect on a rfkill line of a wireless device.
84
85rfkill controller:
86
87 A hardware circuit that controls the state of a rfkill line, which a
88 kernel driver can interact with *to modify* that state (i.e. it has
89 either write-only or read/write access).
90
91rfkill line:
92
93 An input channel (hardware or software) of a wireless device, which
94 causes a wireless transmitter to stop emitting energy (BLOCK) when it
95 is active. Point of view is extremely important here: rfkill lines are
96 always seen from the PoV of a wireless device (and its driver).
97
98soft rfkill line/software rfkill line:
99
100 A rfkill line the wireless device driver can directly change the state
101 of. Related to rfkill_state RFKILL_STATE_SOFT_BLOCKED.
102
103hard rfkill line/hardware rfkill line:
104
105 A rfkill line that works fully in hardware or firmware, and that cannot
106 be overridden by the kernel driver. The hardware device or the
107 firmware just exports its status to the driver, but it is read-only.
108 Related to rfkill_state RFKILL_STATE_HARD_BLOCKED.
109
110The enum rfkill_state describes the rfkill state of a transmitter:
111
112When a rfkill line or rfkill controller is in the RFKILL_STATE_UNBLOCKED state,
113the wireless transmitter (radio TX circuit for example) is *enabled*. When the
114it is in the RFKILL_STATE_SOFT_BLOCKED or RFKILL_STATE_HARD_BLOCKED, the
115wireless transmitter is to be *blocked* from operating.
116
117RFKILL_STATE_SOFT_BLOCKED indicates that a call to toggle_radio() can change
118that state. RFKILL_STATE_HARD_BLOCKED indicates that a call to toggle_radio()
119will not be able to change the state and will return with a suitable error if
120attempts are made to set the state to RFKILL_STATE_UNBLOCKED.
121
122RFKILL_STATE_HARD_BLOCKED is used by drivers to signal that the device is
123locked in the BLOCKED state by a hardwire rfkill line (typically an input pin
124that, when active, forces the transmitter to be disabled) which the driver
125CANNOT override.
126
127Full rfkill functionality requires two different subsystems to cooperate: the
128input layer and the rfkill class. The input layer issues *commands* to the
129entire system requesting that devices registered to the rfkill class change
130state. The way this interaction happens is not complex, but it is not obvious
131either:
132
133Kernel Input layer:
134
135 * Generates KEY_WWAN, KEY_WLAN, KEY_BLUETOOTH, SW_RFKILL_ALL, and
136 other such events when the user presses certain keys, buttons, or
137 toggles certain physical switches.
138
139 THE INPUT LAYER IS NEVER USED TO PROPAGATE STATUS, NOTIFICATIONS OR THE
140 KIND OF STUFF AN ON-SCREEN-DISPLAY APPLICATION WOULD REPORT. It is
141 used to issue *commands* for the system to change behaviour, and these
142 commands may or may not be carried out by some kernel driver or
143 userspace application. It follows that doing user feedback based only
144 on input events is broken, as there is no guarantee that an input event
145 will be acted upon.
146
147 Most wireless communication device drivers implementing rfkill
148 functionality MUST NOT generate these events, and have no reason to
149 register themselves with the input layer. Doing otherwise is a common
150 misconception. There is an API to propagate rfkill status change
151 information, and it is NOT the input layer.
152
153rfkill class:
154
155 * Calls a hook in a driver to effectively change the wireless
156 transmitter state;
157 * Keeps track of the wireless transmitter state (with help from
158 the driver);
159 * Generates userspace notifications (uevents) and a call to a
160 notification chain (kernel) when there is a wireless transmitter
161 state change;
162 * Connects a wireless communications driver with the common rfkill
163 control system, which, for example, allows actions such as
164 "switch all bluetooth devices offline" to be carried out by
165 userspace or by rfkill-input.
166
167 THE RFKILL CLASS NEVER ISSUES INPUT EVENTS. THE RFKILL CLASS DOES
168 NOT LISTEN TO INPUT EVENTS. NO DRIVER USING THE RFKILL CLASS SHALL
169 EVER LISTEN TO, OR ACT ON RFKILL INPUT EVENTS. Doing otherwise is
170 a layering violation.
171
172 Most wireless data communication drivers in the kernel have just to
173 implement the rfkill class API to work properly. Interfacing to the
174 input layer is not often required (and is very often a *bug*) on
175 wireless drivers.
176
177 Platform drivers often have to attach to the input layer to *issue*
178 (but never to listen to) rfkill events for rfkill switches, and also to
179 the rfkill class to export a control interface for the platform rfkill
180 controllers to the rfkill subsystem. This does NOT mean the rfkill
181 switch is attached to a rfkill class (doing so is almost always wrong).
182 It just means the same kernel module is the driver for different
183 devices (rfkill switches and rfkill controllers).
184
185
186Userspace input handlers (uevents) or kernel input handlers (rfkill-input):
187
188 * Implements the policy of what should happen when one of the input
189 layer events related to rfkill operation is received.
190 * Uses the sysfs interface (userspace) or private rfkill API calls
191 to tell the devices registered with the rfkill class to change
192 their state (i.e. translates the input layer event into real
193 action).
194 * rfkill-input implements EPO by handling EV_SW SW_RFKILL_ALL 0
195 (power off all transmitters) in a special way: it ignores any
196 overrides and local state cache and forces all transmitters to the
197 RFKILL_STATE_SOFT_BLOCKED state (including those which are already
198 supposed to be BLOCKED). Note that the opposite event (power on all
199 transmitters) is handled normally.
200
201Userspace uevent handler or kernel platform-specific drivers hooked to the
202rfkill notifier chain:
203
204 * Taps into the rfkill notifier chain or to KOBJ_CHANGE uevents,
205 in order to know when a device that is registered with the rfkill
206 class changes state;
207 * Issues feedback notifications to the user;
208 * In the rare platforms where this is required, synthesizes an input
209 event to command all *OTHER* rfkill devices to also change their
210 statues when a specific rfkill device changes state.
211
212
213===============================================================================
2143: Kernel driver guidelines
215
216Remember: point-of-view is everything for a driver that connects to the rfkill
217subsystem. All the details below must be measured/perceived from the point of
218view of the specific driver being modified.
219
220The first thing one needs to know is whether his driver should be talking to
221the rfkill class or to the input layer. In rare cases (platform drivers), it
222could happen that you need to do both, as platform drivers often handle a
223variety of devices in the same driver.
224
225Do not mistake input devices for rfkill controllers. The only type of "rfkill
226switch" device that is to be registered with the rfkill class are those
227directly controlling the circuits that cause a wireless transmitter to stop
228working (or the software equivalent of them), i.e. what we call a rfkill
229controller. Every other kind of "rfkill switch" is just an input device and
230MUST NOT be registered with the rfkill class.
231
232A driver should register a device with the rfkill class when ALL of the
233following conditions are met (they define a rfkill controller):
234
2351. The device is/controls a data communications wireless transmitter;
236
2372. The kernel can interact with the hardware/firmware to CHANGE the wireless
238 transmitter state (block/unblock TX operation);
239
2403. The transmitter can be made to not emit any energy when "blocked":
241 rfkill is not about blocking data transmissions, it is about blocking
242 energy emission;
243
244A driver should register a device with the input subsystem to issue
245rfkill-related events (KEY_WLAN, KEY_BLUETOOTH, KEY_WWAN, KEY_WIMAX,
246SW_RFKILL_ALL, etc) when ALL of the folowing conditions are met:
247
2481. It is directly related to some physical device the user interacts with, to
249 command the O.S./firmware/hardware to enable/disable a data communications
250 wireless transmitter.
251
252 Examples of the physical device are: buttons, keys and switches the user
253 will press/touch/slide/switch to enable or disable the wireless
254 communication device.
255
2562. It is NOT slaved to another device, i.e. there is no other device that
257 issues rfkill-related input events in preference to this one.
26 258
27The system inside the kernel has been split into 2 separate sections: 259 Please refer to the corner cases and examples section for more details.
28 1 - RFKILL
29 2 - RFKILL_INPUT
30 260
31The first option enables rfkill support and will make sure userspace will 261When in doubt, do not issue input events. For drivers that should generate
32be notified of any events through the input device. It also creates several 262input events in some platforms, but not in others (e.g. b43), the best solution
33sysfs entries which can be used by userspace. See section "Userspace support". 263is to NEVER generate input events in the first place. That work should be
264deferred to a platform-specific kernel module (which will know when to generate
265events through the rfkill notifier chain) or to userspace. This avoids the
266usual maintenance problems with DMI whitelisting.
34 267
35The second option provides an rfkill input handler. This handler will
36listen to all rfkill key events and will toggle the radio accordingly.
37With this option enabled userspace could either do nothing or simply
38perform monitoring tasks.
39 268
269Corner cases and examples:
40==================================== 270====================================
412: Driver support
42 271
43To build a driver with rfkill subsystem support, the driver should 2721. If the device is an input device that, because of hardware or firmware,
44depend on the Kconfig symbol RFKILL; it should _not_ depend on 273causes wireless transmitters to be blocked regardless of the kernel's will, it
45RKFILL_INPUT. 274is still just an input device, and NOT to be registered with the rfkill class.
46 275
47Unless key events trigger an interrupt to which the driver listens, polling 2762. If the wireless transmitter switch control is read-only, it is an input
48will be required to determine the key state changes. For this the input 277device and not to be registered with the rfkill class (and maybe not to be made
49layer providers the input-polldev handler. 278an input layer event source either, see below).
50 279
51A driver should implement a few steps to correctly make use of the 2803. If there is some other device driver *closer* to the actual hardware the
52rfkill subsystem. First for non-polling drivers: 281user interacted with (the button/switch/key) to issue an input event, THAT is
282the device driver that should be issuing input events.
53 283
54 - rfkill_allocate() 284E.g:
55 - input_allocate_device() 285 [RFKILL slider switch] -- [GPIO hardware] -- [WLAN card rf-kill input]
56 - rfkill_register() 286 (platform driver) (wireless card driver)
57 - input_register_device() 287
288The user is closer to the RFKILL slide switch plaform driver, so the driver
289which must issue input events is the platform driver looking at the GPIO
290hardware, and NEVER the wireless card driver (which is just a slave). It is
291very likely that there are other leaves than just the WLAN card rf-kill input
292(e.g. a bluetooth card, etc)...
293
294On the other hand, some embedded devices do this:
295
296 [RFKILL slider switch] -- [WLAN card rf-kill input]
297 (wireless card driver)
298
299In this situation, the wireless card driver *could* register itself as an input
300device and issue rf-kill related input events... but in order to AVOID the need
301for DMI whitelisting, the wireless card driver does NOT do it. Userspace (HAL)
302or a platform driver (that exists only on these embedded devices) will do the
303dirty job of issuing the input events.
304
305
306COMMON MISTAKES in kernel drivers, related to rfkill:
307====================================
308
3091. NEVER confuse input device keys and buttons with input device switches.
310
311 1a. Switches are always set or reset. They report the current state
312 (on position or off position).
313
314 1b. Keys and buttons are either in the pressed or not-pressed state, and
315 that's it. A "button" that latches down when you press it, and
316 unlatches when you press it again is in fact a switch as far as input
317 devices go.
318
319Add the SW_* events you need for switches, do NOT try to emulate a button using
320KEY_* events just because there is no such SW_* event yet. Do NOT try to use,
321for example, KEY_BLUETOOTH when you should be using SW_BLUETOOTH instead.
322
3232. Input device switches (sources of EV_SW events) DO store their current state
324(so you *must* initialize it by issuing a gratuitous input layer event on
325driver start-up and also when resuming from sleep), and that state CAN be
326queried from userspace through IOCTLs. There is no sysfs interface for this,
327but that doesn't mean you should break things trying to hook it to the rfkill
328class to get a sysfs interface :-)
329
3303. Do not issue *_RFKILL_ALL events by default, unless you are sure it is the
331correct event for your switch/button. These events are emergency power-off
332events when they are trying to turn the transmitters off. An example of an
333input device which SHOULD generate *_RFKILL_ALL events is the wireless-kill
334switch in a laptop which is NOT a hotkey, but a real switch that kills radios
335in hardware, even if the O.S. has gone to lunch. An example of an input device
336which SHOULD NOT generate *_RFKILL_ALL events by default, is any sort of hot
337key that does nothing by itself, as well as any hot key that is type-specific
338(e.g. the one for WLAN).
339
340
3413.1 Guidelines for wireless device drivers
342------------------------------------------
343
3441. Each independent transmitter in a wireless device (usually there is only one
345transmitter per device) should have a SINGLE rfkill class attached to it.
346
3472. If the device does not have any sort of hardware assistance to allow the
348driver to rfkill the device, the driver should emulate it by taking all actions
349required to silence the transmitter.
350
3513. If it is impossible to silence the transmitter (i.e. it still emits energy,
352even if it is just in brief pulses, when there is no data to transmit and there
353is no hardware support to turn it off) do NOT lie to the users. Do not attach
354it to a rfkill class. The rfkill subsystem does not deal with data
355transmission, it deals with energy emission. If the transmitter is emitting
356energy, it is not blocked in rfkill terms.
357
3584. It doesn't matter if the device has multiple rfkill input lines affecting
359the same transmitter, their combined state is to be exported as a single state
360per transmitter (see rule 1).
361
362This rule exists because users of the rfkill subsystem expect to get (and set,
363when possible) the overall transmitter rfkill state, not of a particular rfkill
364line.
365
366Example of a WLAN wireless driver connected to the rfkill subsystem:
367--------------------------------------------------------------------
368
369A certain WLAN card has one input pin that causes it to block the transmitter
370and makes the status of that input pin available (only for reading!) to the
371kernel driver. This is a hard rfkill input line (it cannot be overridden by
372the kernel driver).
373
374The card also has one PCI register that, if manipulated by the driver, causes
375it to block the transmitter. This is a soft rfkill input line.
376
377It has also a thermal protection circuitry that shuts down its transmitter if
378the card overheats, and makes the status of that protection available (only for
379reading!) to the kernel driver. This is also a hard rfkill input line.
380
381If either one of these rfkill lines are active, the transmitter is blocked by
382the hardware and forced offline.
383
384The driver should allocate and attach to its struct device *ONE* instance of
385the rfkill class (there is only one transmitter).
386
387It can implement the get_state() hook, and return RFKILL_STATE_HARD_BLOCKED if
388either one of its two hard rfkill input lines are active. If the two hard
389rfkill lines are inactive, it must return RFKILL_STATE_SOFT_BLOCKED if its soft
390rfkill input line is active. Only if none of the rfkill input lines are
391active, will it return RFKILL_STATE_UNBLOCKED.
58 392
59For polling drivers: 393If it doesn't implement the get_state() hook, it must make sure that its calls
394to rfkill_force_state() are enough to keep the status always up-to-date, and it
395must do a rfkill_force_state() on resume from sleep.
60 396
397Every time the driver gets a notification from the card that one of its rfkill
398lines changed state (polling might be needed on badly designed cards that don't
399generate interrupts for such events), it recomputes the rfkill state as per
400above, and calls rfkill_force_state() to update it.
401
402The driver should implement the toggle_radio() hook, that:
403
4041. Returns an error if one of the hardware rfkill lines are active, and the
405caller asked for RFKILL_STATE_UNBLOCKED.
406
4072. Activates the soft rfkill line if the caller asked for state
408RFKILL_STATE_SOFT_BLOCKED. It should do this even if one of the hard rfkill
409lines are active, effectively double-blocking the transmitter.
410
4113. Deactivates the soft rfkill line if none of the hardware rfkill lines are
412active and the caller asked for RFKILL_STATE_UNBLOCKED.
413
414===============================================================================
4154: Kernel API
416
417To build a driver with rfkill subsystem support, the driver should depend on
418(or select) the Kconfig symbol RFKILL; it should _not_ depend on RKFILL_INPUT.
419
420The hardware the driver talks to may be write-only (where the current state
421of the hardware is unknown), or read-write (where the hardware can be queried
422about its current state).
423
424The rfkill class will call the get_state hook of a device every time it needs
425to know the *real* current state of the hardware. This can happen often.
426
427Some hardware provides events when its status changes. In these cases, it is
428best for the driver to not provide a get_state hook, and instead register the
429rfkill class *already* with the correct status, and keep it updated using
430rfkill_force_state() when it gets an event from the hardware.
431
432There is no provision for a statically-allocated rfkill struct. You must
433use rfkill_allocate() to allocate one.
434
435You should:
61 - rfkill_allocate() 436 - rfkill_allocate()
62 - input_allocate_polled_device() 437 - modify rfkill fields (flags, name)
438 - modify state to the current hardware state (THIS IS THE ONLY TIME
439 YOU CAN ACCESS state DIRECTLY)
63 - rfkill_register() 440 - rfkill_register()
64 - input_register_polled_device()
65 441
66When a key event has been detected, the correct event should be 442The only way to set a device to the RFKILL_STATE_HARD_BLOCKED state is through
67sent over the input device which has been registered by the driver. 443a suitable return of get_state() or through rfkill_force_state().
68 444
69==================================== 445When a device is in the RFKILL_STATE_HARD_BLOCKED state, the only way to switch
703: Userspace support 446it to a different state is through a suitable return of get_state() or through
447rfkill_force_state().
448
449If toggle_radio() is called to set a device to state RFKILL_STATE_SOFT_BLOCKED
450when that device is already at the RFKILL_STATE_HARD_BLOCKED state, it should
451not return an error. Instead, it should try to double-block the transmitter,
452so that its state will change from RFKILL_STATE_HARD_BLOCKED to
453RFKILL_STATE_SOFT_BLOCKED should the hardware blocking cease.
71 454
72For each key an input device will be created which will send out the correct 455Please refer to the source for more documentation.
73key event when the rfkill key has been pressed. 456
457===============================================================================
4585: Userspace support
459
460rfkill devices issue uevents (with an action of "change"), with the following
461environment variables set:
462
463RFKILL_NAME
464RFKILL_STATE
465RFKILL_TYPE
466
467The ABI for these variables is defined by the sysfs attributes. It is best
468to take a quick look at the source to make sure of the possible values.
469
470It is expected that HAL will trap those, and bridge them to DBUS, etc. These
471events CAN and SHOULD be used to give feedback to the user about the rfkill
472status of the system.
473
474Input devices may issue events that are related to rfkill. These are the
475various KEY_* events and SW_* events supported by rfkill-input.c.
476
477******IMPORTANT******
478When rfkill-input is ACTIVE, userspace is NOT TO CHANGE THE STATE OF AN RFKILL
479SWITCH IN RESPONSE TO AN INPUT EVENT also handled by rfkill-input, unless it
480has set to true the user_claim attribute for that particular switch. This rule
481is *absolute*; do NOT violate it.
482******IMPORTANT******
483
484Userspace must not assume it is the only source of control for rfkill switches.
485Their state CAN and WILL change due to firmware actions, direct user actions,
486and the rfkill-input EPO override for *_RFKILL_ALL.
487
488When rfkill-input is not active, userspace must initiate a rfkill status
489change by writing to the "state" attribute in order for anything to happen.
490
491Take particular care to implement EV_SW SW_RFKILL_ALL properly. When that
492switch is set to OFF, *every* rfkill device *MUST* be immediately put into the
493RFKILL_STATE_SOFT_BLOCKED state, no questions asked.
74 494
75The following sysfs entries will be created: 495The following sysfs entries will be created:
76 496
77 name: Name assigned by driver to this key (interface or driver name). 497 name: Name assigned by driver to this key (interface or driver name).
78 type: Name of the key type ("wlan", "bluetooth", etc). 498 type: Name of the key type ("wlan", "bluetooth", etc).
79 state: Current state of the key. 1: On, 0: Off. 499 state: Current state of the transmitter
500 0: RFKILL_STATE_SOFT_BLOCKED
501 transmitter is forced off, but one can override it
502 by a write to the state attribute;
503 1: RFKILL_STATE_UNBLOCKED
504 transmiter is NOT forced off, and may operate if
505 all other conditions for such operation are met
506 (such as interface is up and configured, etc);
507 2: RFKILL_STATE_HARD_BLOCKED
508 transmitter is forced off by something outside of
509 the driver's control. One cannot set a device to
510 this state through writes to the state attribute;
80 claim: 1: Userspace handles events, 0: Kernel handles events 511 claim: 1: Userspace handles events, 0: Kernel handles events
81 512
82Both the "state" and "claim" entries are also writable. For the "state" entry 513Both the "state" and "claim" entries are also writable. For the "state" entry
83this means that when 1 or 0 is written all radios, not yet in the requested 514this means that when 1 or 0 is written, the device rfkill state (if not yet in
84state, will be will be toggled accordingly. 515the requested state), will be will be toggled accordingly.
516
85For the "claim" entry writing 1 to it means that the kernel no longer handles 517For the "claim" entry writing 1 to it means that the kernel no longer handles
86key events even though RFKILL_INPUT input was enabled. When "claim" has been 518key events even though RFKILL_INPUT input was enabled. When "claim" has been
87set to 0, userspace should make sure that it listens for the input events or 519set to 0, userspace should make sure that it listens for the input events or
88check the sysfs "state" entry regularly to correctly perform the required 520check the sysfs "state" entry regularly to correctly perform the required tasks
89tasks when the rkfill key is pressed. 521when the rkfill key is pressed.
522
523A note about input devices and EV_SW events:
524
525In order to know the current state of an input device switch (like
526SW_RFKILL_ALL), you will need to use an IOCTL. That information is not
527available through sysfs in a generic way at this time, and it is not available
528through the rfkill class AT ALL.
diff --git a/Documentation/serial/driver b/Documentation/serial/driver
index 88ad615dd338..77ba0afbe4db 100644
--- a/Documentation/serial/driver
+++ b/Documentation/serial/driver
@@ -186,6 +186,17 @@ hardware.
186 Locking: port_sem taken. 186 Locking: port_sem taken.
187 Interrupts: caller dependent. 187 Interrupts: caller dependent.
188 188
189 flush_buffer(port)
190 Flush any write buffers, reset any DMA state and stop any
191 ongoing DMA transfers.
192
193 This will be called whenever the port->info->xmit circular
194 buffer is cleared.
195
196 Locking: port->lock taken.
197 Interrupts: locally disabled.
198 This call must not sleep
199
189 set_termios(port,termios,oldtermios) 200 set_termios(port,termios,oldtermios)
190 Change the port parameters, including word length, parity, stop 201 Change the port parameters, including word length, parity, stop
191 bits. Update read_status_mask and ignore_status_mask to indicate 202 bits. Update read_status_mask and ignore_status_mask to indicate
diff --git a/Documentation/usb/gadget_serial.txt b/Documentation/usb/gadget_serial.txt
index 815f5c2301ff..9b22bd14c348 100644
--- a/Documentation/usb/gadget_serial.txt
+++ b/Documentation/usb/gadget_serial.txt
@@ -1,6 +1,7 @@
1 1
2 Linux Gadget Serial Driver v2.0 2 Linux Gadget Serial Driver v2.0
3 11/20/2004 3 11/20/2004
4 (updated 8-May-2008 for v2.3)
4 5
5 6
6License and Disclaimer 7License and Disclaimer
@@ -31,7 +32,7 @@ Prerequisites
31------------- 32-------------
32Versions of the gadget serial driver are available for the 33Versions of the gadget serial driver are available for the
332.4 Linux kernels, but this document assumes you are using 342.4 Linux kernels, but this document assumes you are using
34version 2.0 or later of the gadget serial driver in a 2.6 35version 2.3 or later of the gadget serial driver in a 2.6
35Linux kernel. 36Linux kernel.
36 37
37This document assumes that you are familiar with Linux and 38This document assumes that you are familiar with Linux and
@@ -40,6 +41,12 @@ standard utilities, use minicom and HyperTerminal, and work with
40USB and serial devices. It also assumes you configure the Linux 41USB and serial devices. It also assumes you configure the Linux
41gadget and usb drivers as modules. 42gadget and usb drivers as modules.
42 43
44With version 2.3 of the driver, major and minor device nodes are
45no longer statically defined. Your Linux based system should mount
46sysfs in /sys, and use "mdev" (in Busybox) or "udev" to make the
47/dev nodes matching the sysfs /sys/class/tty files.
48
49
43 50
44Overview 51Overview
45-------- 52--------
@@ -104,15 +111,8 @@ driver. All this are listed under "USB Gadget Support" when
104configuring the kernel. Then rebuild and install the kernel or 111configuring the kernel. Then rebuild and install the kernel or
105modules. 112modules.
106 113
107The gadget serial driver uses major number 127, for now. So you
108will need to create a device node for it, like this:
109
110 mknod /dev/ttygserial c 127 0
111
112You only need to do this once.
113
114Then you must load the gadget serial driver. To load it as an 114Then you must load the gadget serial driver. To load it as an
115ACM device, do this: 115ACM device (recommended for interoperability), do this:
116 116
117 modprobe g_serial use_acm=1 117 modprobe g_serial use_acm=1
118 118
@@ -125,6 +125,23 @@ controller driver. This must be done each time you reboot the gadget
125side Linux system. You can add this to the start up scripts, if 125side Linux system. You can add this to the start up scripts, if
126desired. 126desired.
127 127
128Your system should use mdev (from busybox) or udev to make the
129device nodes. After this gadget driver has been set up you should
130then see a /dev/ttyGS0 node:
131
132 # ls -l /dev/ttyGS0 | cat
133 crw-rw---- 1 root root 253, 0 May 8 14:10 /dev/ttyGS0
134 #
135
136Note that the major number (253, above) is system-specific. If
137you need to create /dev nodes by hand, the right numbers to use
138will be in the /sys/class/tty/ttyGS0/dev file.
139
140When you link this gadget driver early, perhaps even statically,
141you may want to set up an /etc/inittab entry to run "getty" on it.
142The /dev/ttyGS0 line should work like most any other serial port.
143
144
128If gadget serial is loaded as an ACM device you will want to use 145If gadget serial is loaded as an ACM device you will want to use
129either the Windows or Linux ACM driver on the host side. If gadget 146either the Windows or Linux ACM driver on the host side. If gadget
130serial is loaded as a bulk in/out device, you will want to use the 147serial is loaded as a bulk in/out device, you will want to use the
diff --git a/Documentation/usb/persist.txt b/Documentation/usb/persist.txt
index d56cb1a11550..074b159b77c2 100644
--- a/Documentation/usb/persist.txt
+++ b/Documentation/usb/persist.txt
@@ -81,8 +81,11 @@ re-enumeration shows that the device now attached to that port has the
81same descriptors as before, including the Vendor and Product IDs, then 81same descriptors as before, including the Vendor and Product IDs, then
82the kernel continues to use the same device structure. In effect, the 82the kernel continues to use the same device structure. In effect, the
83kernel treats the device as though it had merely been reset instead of 83kernel treats the device as though it had merely been reset instead of
84unplugged. The same thing happens if the host controller is in the 84unplugged.
85expected state but a USB device was unplugged and then replugged. 85
86The same thing happens if the host controller is in the expected state
87but a USB device was unplugged and then replugged, or if a USB device
88fails to carry out a normal resume.
86 89
87If no device is now attached to the port, or if the descriptors are 90If no device is now attached to the port, or if the descriptors are
88different from what the kernel remembers, then the treatment is what 91different from what the kernel remembers, then the treatment is what
diff --git a/Documentation/usb/uhci.txt b/Documentation/usb/uhci.txt
deleted file mode 100644
index 2f25952c86c6..000000000000
--- a/Documentation/usb/uhci.txt
+++ /dev/null
@@ -1,165 +0,0 @@
1Specification and Internals for the New UHCI Driver (Whitepaper...)
2
3 brought to you by
4
5 Georg Acher, acher@in.tum.de (executive slave) (base guitar)
6 Deti Fliegl, deti@fliegl.de (executive slave) (lead voice)
7 Thomas Sailer, sailer@ife.ee.ethz.ch (chief consultant) (cheer leader)
8
9 $Id: README.uhci,v 1.1 1999/12/14 14:03:02 fliegl Exp $
10
11This document and the new uhci sources can be found on
12 http://hotswap.in.tum.de/usb
13
141. General issues
15
161.1 Why a new UHCI driver, we already have one?!?
17
18Correct, but its internal structure got more and more mixed up by the (still
19ongoing) efforts to get isochronous transfers (ISO) to work.
20Since there is an increasing need for reliable ISO-transfers (especially
21for USB-audio needed by TS and for a DAB-USB-Receiver build by GA and DF),
22this state was a bit unsatisfying in our opinion, so we've decided (based
23on knowledge and experiences with the old UHCI driver) to start
24from scratch with a new approach, much simpler but at the same time more
25powerful.
26It is inspired by the way Win98/Win2000 handles USB requests via URBs,
27but it's definitely 100% free of MS-code and doesn't crash while
28unplugging an used ISO-device like Win98 ;-)
29Some code for HW setup and root hub management was taken from the
30original UHCI driver, but heavily modified to fit into the new code.
31The invention of the basic concept, and major coding were completed in two
32days (and nights) on the 16th and 17th of October 1999, now known as the
33great USB-October-Revolution started by GA, DF, and TS ;-)
34
35Since the concept is in no way UHCI dependent, we hope that it will also be
36transferred to the OHCI-driver, so both drivers share a common API.
37
381.2. Advantages and disadvantages
39
40+ All USB transfer types work now!
41+ Asynchronous operation
42+ Simple, but powerful interface (only two calls for start and cancel)
43+ Easy migration to the new API, simplified by a compatibility API
44+ Simple usage of ISO transfers
45+ Automatic linking of requests
46+ ISO transfers allow variable length for each frame and striping
47+ No CPU dependent and non-portable atomic memory access, no asm()-inlines
48+ Tested on x86 and Alpha
49
50- Rewriting for ISO transfers needed
51
521.3. Is there some compatibility to the old API?
53
54Yes, but only for control, bulk and interrupt transfers. We've implemented
55some wrapper calls for these transfer types. The usbcore works fine with
56these wrappers. For ISO there's no compatibility, because the old ISO-API
57and its semantics were unnecessary complicated in our opinion.
58
591.4. What's really working?
60
61As said above, CTRL and BULK already work fine even with the wrappers,
62so legacy code wouldn't notice the change.
63Regarding to Thomas, ISO transfers now run stable with USB audio.
64INT transfers (e.g. mouse driver) work fine, too.
65
661.5. Are there any bugs?
67
68No ;-)
69Hm...
70Well, of course this implementation needs extensive testing on all available
71hardware, but we believe that any fixes shouldn't harm the overall concept.
72
731.6. What should be done next?
74
75A large part of the request handling seems to be identical for UHCI and
76OHCI, so it would be a good idea to extract the common parts and have only
77the HW specific stuff in uhci.c. Furthermore, all other USB device drivers
78should need URBification, if they use isochronous or interrupt transfers.
79One thing missing in the current implementation (and the old UHCI driver)
80is fair queueing for BULK transfers. Since this would need (in principle)
81the alteration of already constructed TD chains (to switch from depth to
82breadth execution), another way has to be found. Maybe some simple
83heuristics work with the same effect.
84
85---------------------------------------------------------------------------
86
872. Internal structure and mechanisms
88
89To get quickly familiar with the internal structures, here's a short
90description how the new UHCI driver works. However, the ultimate source of
91truth is only uhci.c!
92
932.1. Descriptor structure (QHs and TDs)
94
95During initialization, the following skeleton is allocated in init_skel:
96
97 framespecific | common chain
98
99framelist[]
100[ 0 ]-----> TD --> TD -------\
101[ 1 ]-----> TD --> TD --------> TD ----> QH -------> QH -------> QH ---> NULL
102 ... TD --> TD -------/
103[1023]-----> TD --> TD ------/
104
105 ^^ ^^ ^^ ^^ ^^ ^^
106 1024 TDs for 7 TDs for 1 TD for Start of Start of End Chain
107 ISO INT (2-128ms) 1ms-INT CTRL Chain BULK Chain
108
109For each CTRL or BULK transfer a new QH is allocated and the containing data
110transfers are appended as (vertical) TDs. After building the whole QH with its
111dangling TDs, the QH is inserted before the BULK Chain QH (for CTRL) or
112before the End Chain QH (for BULK). Since only the QH->next pointers are
113affected, no atomic memory operation is required. The three QHs in the
114common chain are never equipped with TDs!
115
116For ISO or INT, the TD for each frame is simply inserted into the appropriate
117ISO/INT-TD-chain for the desired frame. The 7 skeleton INT-TDs are scattered
118among the 1024 frames similar to the old UHCI driver.
119
120For CTRL/BULK/ISO, the last TD in the transfer has the IOC-bit set. For INT,
121every TD (there is only one...) has the IOC-bit set.
122
123Besides the data for the UHCI controller (2 or 4 32bit words), the descriptors
124are double-linked through the .vertical and .horizontal elements in the
125SW data of the descriptor (using the double-linked list structures and
126operations), but SW-linking occurs only in closed domains, i.e. for each of
127the 1024 ISO-chains and the 8 INT-chains there is a closed cycle. This
128simplifies all insertions and unlinking operations and avoids costly
129bus_to_virt()-calls.
130
1312.2. URB structure and linking to QH/TDs
132
133During assembly of the QH and TDs of the requested action, these descriptors
134are stored in urb->urb_list, so the allocated QH/TD descriptors are bound to
135this URB.
136If the assembly was successful and the descriptors were added to the HW chain,
137the corresponding URB is inserted into a global URB list for this controller.
138This list stores all pending URBs.
139
1402.3. Interrupt processing
141
142Since UHCI provides no means to directly detect completed transactions, the
143following is done in each UHCI interrupt (uhci_interrupt()):
144
145For each URB in the pending queue (process_urb()), the ACTIVE-flag of the
146associated TDs are processed (depending on the transfer type
147process_{transfer|interrupt|iso}()). If the TDs are not active anymore,
148they indicate the completion of the transaction and the status is calculated.
149Inactive QH/TDs are removed from the HW chain (since the host controller
150already removed the TDs from the QH, no atomic access is needed) and
151eventually the URB is marked as completed (OK or errors) and removed from the
152pending queue. Then the next linked URB is submitted. After (or immediately
153before) that, the completion handler is called.
154
1552.4. Unlinking URBs
156
157First, all QH/TDs stored in the URB are unlinked from the HW chain.
158To ensure that the host controller really left a vertical TD chain, we
159wait for one frame. After that, the TDs are physically destroyed.
160
1612.5. URB linking and the consequences
162
163Since URBs can be linked and the corresponding submit_urb is called in
164the UHCI-interrupt, all work associated with URB/QH/TD assembly has to be
165interrupt save. This forces kmalloc to use GFP_ATOMIC in the interrupt.
diff --git a/Documentation/video4linux/CARDLIST.cx23885 b/Documentation/video4linux/CARDLIST.cx23885
index 191194ea1e25..f0e613ba55b8 100644
--- a/Documentation/video4linux/CARDLIST.cx23885
+++ b/Documentation/video4linux/CARDLIST.cx23885
@@ -8,3 +8,4 @@
8 7 -> Hauppauge WinTV-HVR1200 [0070:71d1,0070:71d3] 8 7 -> Hauppauge WinTV-HVR1200 [0070:71d1,0070:71d3]
9 8 -> Hauppauge WinTV-HVR1700 [0070:8101] 9 8 -> Hauppauge WinTV-HVR1700 [0070:8101]
10 9 -> Hauppauge WinTV-HVR1400 [0070:8010] 10 9 -> Hauppauge WinTV-HVR1400 [0070:8010]
11 10 -> DViCO FusionHDTV7 Dual Express [18ac:d618]
diff --git a/Documentation/video4linux/CARDLIST.em28xx b/Documentation/video4linux/CARDLIST.em28xx
index 1d6a245c828f..10591467ef16 100644
--- a/Documentation/video4linux/CARDLIST.em28xx
+++ b/Documentation/video4linux/CARDLIST.em28xx
@@ -8,10 +8,13 @@
8 7 -> Leadtek Winfast USB II (em2800) 8 7 -> Leadtek Winfast USB II (em2800)
9 8 -> Kworld USB2800 (em2800) 9 8 -> Kworld USB2800 (em2800)
10 9 -> Pinnacle Dazzle DVC 90/DVC 100 (em2820/em2840) [2304:0207,2304:021a] 10 9 -> Pinnacle Dazzle DVC 90/DVC 100 (em2820/em2840) [2304:0207,2304:021a]
11 10 -> Hauppauge WinTV HVR 900 (em2880) [2040:6500,2040:6502] 11 10 -> Hauppauge WinTV HVR 900 (em2880) [2040:6500]
12 11 -> Terratec Hybrid XS (em2880) [0ccd:0042] 12 11 -> Terratec Hybrid XS (em2880) [0ccd:0042]
13 12 -> Kworld PVR TV 2800 RF (em2820/em2840) 13 12 -> Kworld PVR TV 2800 RF (em2820/em2840)
14 13 -> Terratec Prodigy XS (em2880) [0ccd:0047] 14 13 -> Terratec Prodigy XS (em2880) [0ccd:0047]
15 14 -> Pixelview Prolink PlayTV USB 2.0 (em2820/em2840) 15 14 -> Pixelview Prolink PlayTV USB 2.0 (em2820/em2840)
16 15 -> V-Gear PocketTV (em2800) 16 15 -> V-Gear PocketTV (em2800)
17 16 -> Hauppauge WinTV HVR 950 (em2880) [2040:6513,2040:6517,2040:651b,2040:651f] 17 16 -> Hauppauge WinTV HVR 950 (em2880) [2040:6513,2040:6517,2040:651b,2040:651f]
18 17 -> Pinnacle PCTV HD Pro Stick (em2880) [2304:0227]
19 18 -> Hauppauge WinTV HVR 900 (R2) (em2880) [2040:6502]
20 19 -> PointNix Intra-Oral Camera (em2860)
diff --git a/Documentation/video4linux/CARDLIST.saa7134 b/Documentation/video4linux/CARDLIST.saa7134
index 67937df1e974..39868af9cf9f 100644
--- a/Documentation/video4linux/CARDLIST.saa7134
+++ b/Documentation/video4linux/CARDLIST.saa7134
@@ -37,7 +37,7 @@
37 36 -> UPMOST PURPLE TV [12ab:0800] 37 36 -> UPMOST PURPLE TV [12ab:0800]
38 37 -> Items MuchTV Plus / IT-005 38 37 -> Items MuchTV Plus / IT-005
39 38 -> Terratec Cinergy 200 TV [153b:1152] 39 38 -> Terratec Cinergy 200 TV [153b:1152]
40 39 -> LifeView FlyTV Platinum Mini [5168:0212,4e42:0212] 40 39 -> LifeView FlyTV Platinum Mini [5168:0212,4e42:0212,5169:1502]
41 40 -> Compro VideoMate TV PVR/FM [185b:c100] 41 40 -> Compro VideoMate TV PVR/FM [185b:c100]
42 41 -> Compro VideoMate TV Gold+ [185b:c100] 42 41 -> Compro VideoMate TV Gold+ [185b:c100]
43 42 -> Sabrent SBT-TVFM (saa7130) 43 42 -> Sabrent SBT-TVFM (saa7130)
@@ -128,7 +128,7 @@
128127 -> Beholder BeholdTV 507 FM/RDS / BeholdTV 509 FM [0000:5071,0000:507B,5ace:5070,5ace:5090] 128127 -> Beholder BeholdTV 507 FM/RDS / BeholdTV 509 FM [0000:5071,0000:507B,5ace:5070,5ace:5090]
129128 -> Beholder BeholdTV Columbus TVFM [0000:5201] 129128 -> Beholder BeholdTV Columbus TVFM [0000:5201]
130129 -> Beholder BeholdTV 607 / BeholdTV 609 [5ace:6070,5ace:6071,5ace:6072,5ace:6073,5ace:6090,5ace:6091,5ace:6092,5ace:6093] 130129 -> Beholder BeholdTV 607 / BeholdTV 609 [5ace:6070,5ace:6071,5ace:6072,5ace:6073,5ace:6090,5ace:6091,5ace:6092,5ace:6093]
131130 -> Beholder BeholdTV M6 / BeholdTV M6 Extra [5ace:6190,5ace:6193,5ace:6191] 131130 -> Beholder BeholdTV M6 [5ace:6190]
132131 -> Twinhan Hybrid DTV-DVB 3056 PCI [1822:0022] 132131 -> Twinhan Hybrid DTV-DVB 3056 PCI [1822:0022]
133132 -> Genius TVGO AM11MCE 133132 -> Genius TVGO AM11MCE
134133 -> NXP Snake DVB-S reference design 134133 -> NXP Snake DVB-S reference design
@@ -141,3 +141,7 @@
141140 -> Avermedia DVB-S Pro A700 [1461:a7a1] 141140 -> Avermedia DVB-S Pro A700 [1461:a7a1]
142141 -> Avermedia DVB-S Hybrid+FM A700 [1461:a7a2] 142141 -> Avermedia DVB-S Hybrid+FM A700 [1461:a7a2]
143142 -> Beholder BeholdTV H6 [5ace:6290] 143142 -> Beholder BeholdTV H6 [5ace:6290]
144143 -> Beholder BeholdTV M63 [5ace:6191]
145144 -> Beholder BeholdTV M6 Extra [5ace:6193]
146145 -> AVerMedia MiniPCI DVB-T Hybrid M103 [1461:f636]
147146 -> ASUSTeK P7131 Analog
diff --git a/Documentation/video4linux/cx18.txt b/Documentation/video4linux/cx18.txt
index 6842c262890f..914cb7e734a2 100644
--- a/Documentation/video4linux/cx18.txt
+++ b/Documentation/video4linux/cx18.txt
@@ -1,36 +1,30 @@
1Some notes regarding the cx18 driver for the Conexant CX23418 MPEG 1Some notes regarding the cx18 driver for the Conexant CX23418 MPEG
2encoder chip: 2encoder chip:
3 3
41) The only hardware currently supported is the Hauppauge HVR-1600 41) Currently supported are:
5 card and the Compro VideoMate H900 (note that this card only
6 supports analog input, it has no digital tuner!).
7 5
82) Some people have problems getting the i2c bus to work. Cause unknown. 6 - Hauppauge HVR-1600
9 The symptom is that the eeprom cannot be read and the card is 7 - Compro VideoMate H900
10 unusable. 8 - Yuan MPC718
9 - Conexant Raptor PAL/SECAM devkit
11 10
123) The audio from the analog tuner is mono only. Probably caused by 112) Some people have problems getting the i2c bus to work.
13 incorrect audio register information in the datasheet. We are 12 The symptom is that the eeprom cannot be read and the card is
14 waiting for updated information from Conexant. 13 unusable. This is probably fixed, but if you have problems
14 then post to the video4linux or ivtv-users mailinglist.
15 15
164) VBI (raw or sliced) has not yet been implemented. 163) VBI (raw or sliced) has not yet been implemented.
17 17
185) MPEG indexing is not yet implemented. 184) MPEG indexing is not yet implemented.
19 19
206) The driver is still a bit rough around the edges, this should 205) The driver is still a bit rough around the edges, this should
21 improve over time. 21 improve over time.
22 22
23 23
24Firmware: 24Firmware:
25 25
26The firmware needs to be extracted from the Windows Hauppauge HVR-1600 26You can obtain the firmware files here:
27driver, available here:
28
29http://hauppauge.lightpath.net/software/install_cd/hauppauge_cd_3.4d1.zip
30 27
31Unzip, then copy the following files to the firmware directory 28http://dl.ivtvdriver.org/ivtv/firmware/cx18-firmware.tar.gz
32and rename them as follows:
33 29
34Drivers/Driver18/hcw18apu.rom -> v4l-cx23418-apu.fw 30Untar and copy the .fw files to your firmware directory.
35Drivers/Driver18/hcw18enc.rom -> v4l-cx23418-cpu.fw
36Drivers/Driver18/hcw18mlC.rom -> v4l-cx23418-dig.fw
diff --git a/Documentation/video4linux/gspca.txt b/Documentation/video4linux/gspca.txt
new file mode 100644
index 000000000000..0c4880af57a3
--- /dev/null
+++ b/Documentation/video4linux/gspca.txt
@@ -0,0 +1,243 @@
1List of the webcams know by gspca.
2
3The modules are:
4 gspca_main main driver
5 gspca_xxxx subdriver module with xxxx as follows
6
7xxxx vend:prod
8----
9spca501 0000:0000 MystFromOri Unknow Camera
10spca501 040a:0002 Kodak DVC-325
11spca500 040a:0300 Kodak EZ200
12zc3xx 041e:041e Creative WebCam Live!
13spca500 041e:400a Creative PC-CAM 300
14sunplus 041e:400b Creative PC-CAM 600
15sunplus 041e:4012 PC-Cam350
16sunplus 041e:4013 Creative Pccam750
17zc3xx 041e:4017 Creative Webcam Mobile PD1090
18spca508 041e:4018 Creative Webcam Vista (PD1100)
19spca561 041e:401a Creative Webcam Vista (PD1100)
20zc3xx 041e:401c Creative NX
21spca505 041e:401d Creative Webcam NX ULTRA
22zc3xx 041e:401e Creative Nx Pro
23zc3xx 041e:401f Creative Webcam Notebook PD1171
24pac207 041e:4028 Creative Webcam Vista Plus
25zc3xx 041e:4029 Creative WebCam Vista Pro
26zc3xx 041e:4034 Creative Instant P0620
27zc3xx 041e:4035 Creative Instant P0620D
28zc3xx 041e:4036 Creative Live !
29zc3xx 041e:403a Creative Nx Pro 2
30spca561 041e:403b Creative Webcam Vista (VF0010)
31zc3xx 041e:4051 Creative Live!Cam Notebook Pro (VF0250)
32ov519 041e:4052 Creative Live! VISTA IM
33zc3xx 041e:4053 Creative Live!Cam Video IM
34ov519 041e:405f Creative Live! VISTA VF0330
35ov519 041e:4060 Creative Live! VISTA VF0350
36ov519 041e:4061 Creative Live! VISTA VF0400
37ov519 041e:4064 Creative Live! VISTA VF0420
38ov519 041e:4068 Creative Live! VISTA VF0470
39spca561 0458:7004 Genius VideoCAM Express V2
40sunplus 0458:7006 Genius Dsc 1.3 Smart
41zc3xx 0458:7007 Genius VideoCam V2
42zc3xx 0458:700c Genius VideoCam V3
43zc3xx 0458:700f Genius VideoCam Web V2
44sonixj 0458:7025 Genius Eye 311Q
45sonixj 045e:00f5 MicroSoft VX3000
46sonixj 045e:00f7 MicroSoft VX1000
47ov519 045e:028c Micro$oft xbox cam
48spca508 0461:0815 Micro Innovation IC200
49sunplus 0461:0821 Fujifilm MV-1
50zc3xx 0461:0a00 MicroInnovation WebCam320
51spca500 046d:0890 Logitech QuickCam traveler
52vc032x 046d:0892 Logitech Orbicam
53vc032x 046d:0896 Logitech Orbicam
54zc3xx 046d:08a0 Logitech QC IM
55zc3xx 046d:08a1 Logitech QC IM 0x08A1 +sound
56zc3xx 046d:08a2 Labtec Webcam Pro
57zc3xx 046d:08a3 Logitech QC Chat
58zc3xx 046d:08a6 Logitech QCim
59zc3xx 046d:08a7 Logitech QuickCam Image
60zc3xx 046d:08a9 Logitech Notebook Deluxe
61zc3xx 046d:08aa Labtec Webcam Notebook
62zc3xx 046d:08ac Logitech QuickCam Cool
63zc3xx 046d:08ad Logitech QCCommunicate STX
64zc3xx 046d:08ae Logitech QuickCam for Notebooks
65zc3xx 046d:08af Logitech QuickCam Cool
66zc3xx 046d:08b9 Logitech QC IM ???
67zc3xx 046d:08d7 Logitech QCam STX
68zc3xx 046d:08d9 Logitech QuickCam IM/Connect
69zc3xx 046d:08d8 Logitech Notebook Deluxe
70zc3xx 046d:08da Logitech QuickCam Messenger
71zc3xx 046d:08dd Logitech QuickCam for Notebooks
72spca500 046d:0900 Logitech Inc. ClickSmart 310
73spca500 046d:0901 Logitech Inc. ClickSmart 510
74sunplus 046d:0905 Logitech ClickSmart 820
75tv8532 046d:0920 QC Express
76tv8532 046d:0921 Labtec Webcam
77spca561 046d:0928 Logitech QC Express Etch2
78spca561 046d:0929 Labtec Webcam Elch2
79spca561 046d:092a Logitech QC for Notebook
80spca561 046d:092b Labtec Webcam Plus
81spca561 046d:092c Logitech QC chat Elch2
82spca561 046d:092d Logitech QC Elch2
83spca561 046d:092e Logitech QC Elch2
84spca561 046d:092f Logitech QC Elch2
85sunplus 046d:0960 Logitech ClickSmart 420
86sunplus 0471:0322 Philips DMVC1300K
87zc3xx 0471:0325 Philips SPC 200 NC
88zc3xx 0471:0326 Philips SPC 300 NC
89sonixj 0471:0327 Philips SPC 600 NC
90sonixj 0471:0328 Philips SPC 700 NC
91zc3xx 0471:032d Philips spc210nc
92zc3xx 0471:032e Philips spc315nc
93sonixj 0471:0330 Philips SPC 710NC
94spca501 0497:c001 Smile International
95sunplus 04a5:3003 Benq DC 1300
96sunplus 04a5:3008 Benq DC 1500
97sunplus 04a5:300a Benq DC3410
98spca500 04a5:300c Benq DC1016
99sunplus 04f1:1001 JVC GC A50
100spca561 04fc:0561 Flexcam 100
101sunplus 04fc:500c Sunplus CA500C
102sunplus 04fc:504a Aiptek Mini PenCam 1.3
103sunplus 04fc:504b Maxell MaxPocket LE 1.3
104sunplus 04fc:5330 Digitrex 2110
105sunplus 04fc:5360 Sunplus Generic
106spca500 04fc:7333 PalmPixDC85
107sunplus 04fc:ffff Pure DigitalDakota
108spca501 0506:00df 3Com HomeConnect Lite
109sunplus 052b:1513 Megapix V4
110tv8532 0545:808b Veo Stingray
111tv8532 0545:8333 Veo Stingray
112sunplus 0546:3155 Polaroid PDC3070
113sunplus 0546:3191 Polaroid Ion 80
114sunplus 0546:3273 Polaroid PDC2030
115ov519 054c:0154 Sonny toy4
116ov519 054c:0155 Sonny toy5
117zc3xx 055f:c005 Mustek Wcam300A
118spca500 055f:c200 Mustek Gsmart 300
119sunplus 055f:c211 Kowa Bs888e Microcamera
120spca500 055f:c220 Gsmart Mini
121sunplus 055f:c230 Mustek Digicam 330K
122sunplus 055f:c232 Mustek MDC3500
123sunplus 055f:c360 Mustek DV4000 Mpeg4
124sunplus 055f:c420 Mustek gSmart Mini 2
125sunplus 055f:c430 Mustek Gsmart LCD 2
126sunplus 055f:c440 Mustek DV 3000
127sunplus 055f:c520 Mustek gSmart Mini 3
128sunplus 055f:c530 Mustek Gsmart LCD 3
129sunplus 055f:c540 Gsmart D30
130sunplus 055f:c630 Mustek MDC4000
131sunplus 055f:c650 Mustek MDC5500Z
132zc3xx 055f:d003 Mustek WCam300A
133zc3xx 055f:d004 Mustek WCam300 AN
134conex 0572:0041 Creative Notebook cx11646
135ov519 05a9:0519 OmniVision
136ov519 05a9:0530 OmniVision
137ov519 05a9:4519 OmniVision
138ov519 05a9:8519 OmniVision
139sunplus 05da:1018 Digital Dream Enigma 1.3
140stk014 05e1:0893 Syntek DV4000
141spca561 060b:a001 Maxell Compact Pc PM3
142zc3xx 0698:2003 CTX M730V built in
143spca500 06bd:0404 Agfa CL20
144spca500 06be:0800 Optimedia
145sunplus 06d6:0031 Trust 610 LCD PowerC@m Zoom
146spca506 06e1:a190 ADS Instant VCD
147spca508 0733:0110 ViewQuest VQ110
148spca508 0130:0130 Clone Digital Webcam 11043
149spca501 0733:0401 Intel Create and Share
150spca501 0733:0402 ViewQuest M318B
151spca505 0733:0430 Intel PC Camera Pro
152sunplus 0733:1311 Digital Dream Epsilon 1.3
153sunplus 0733:1314 Mercury 2.1MEG Deluxe Classic Cam
154sunplus 0733:2211 Jenoptik jdc 21 LCD
155sunplus 0733:2221 Mercury Digital Pro 3.1p
156sunplus 0733:3261 Concord 3045 spca536a
157sunplus 0733:3281 Cyberpix S550V
158spca506 0734:043b 3DeMon USB Capture aka
159spca500 084d:0003 D-Link DSC-350
160spca500 08ca:0103 Aiptek PocketDV
161sunplus 08ca:0104 Aiptek PocketDVII 1.3
162sunplus 08ca:0106 Aiptek Pocket DV3100+
163sunplus 08ca:2008 Aiptek Mini PenCam 2 M
164sunplus 08ca:2010 Aiptek PocketCam 3M
165sunplus 08ca:2016 Aiptek PocketCam 2 Mega
166sunplus 08ca:2018 Aiptek Pencam SD 2M
167sunplus 08ca:2020 Aiptek Slim 3000F
168sunplus 08ca:2022 Aiptek Slim 3200
169sunplus 08ca:2024 Aiptek DV3500 Mpeg4
170sunplus 08ca:2028 Aiptek PocketCam4M
171sunplus 08ca:2040 Aiptek PocketDV4100M
172sunplus 08ca:2042 Aiptek PocketDV5100
173sunplus 08ca:2050 Medion MD 41437
174sunplus 08ca:2060 Aiptek PocketDV5300
175tv8532 0923:010f ICM532 cams
176mars 093a:050f Mars-Semi Pc-Camera
177pac207 093a:2460 PAC207 Qtec Webcam 100
178pac207 093a:2463 Philips spc200nc pac207
179pac207 093a:2464 Labtec Webcam 1200
180pac207 093a:2468 PAC207
181pac207 093a:2470 Genius GF112
182pac207 093a:2471 PAC207 Genius VideoCam ge111
183pac207 093a:2472 PAC207 Genius VideoCam ge110
184pac7311 093a:2600 PAC7311 Typhoon
185pac7311 093a:2601 PAC7311 Phillips SPC610NC
186pac7311 093a:2603 PAC7312
187pac7311 093a:2608 PAC7311 Trust WB-3300p
188pac7311 093a:260e PAC7311 Gigaware VGA PC Camera, Trust WB-3350p, SIGMA cam 2350
189pac7311 093a:260f PAC7311 SnakeCam
190pac7311 093a:2621 PAC731x
191zc3xx 0ac8:0302 Z-star Vimicro zc0302
192vc032x 0ac8:0321 Vimicro generic vc0321
193vc032x 0ac8:0323 Vimicro Vc0323
194vc032x 0ac8:0328 A4Tech PK-130MG
195zc3xx 0ac8:301b Z-Star zc301b
196zc3xx 0ac8:303b Vimicro 0x303b
197zc3xx 0ac8:305b Z-star Vimicro zc0305b
198zc3xx 0ac8:307b Ldlc VC302+Ov7620
199vc032x 0ac8:c001 Sony embedded vimicro
200vc032x 0ac8:c002 Sony embedded vimicro
201spca508 0af9:0010 Hama USB Sightcam 100
202spca508 0af9:0011 Hama USB Sightcam 100
203sonixb 0c45:6001 Genius VideoCAM NB
204sonixb 0c45:6005 Microdia Sweex Mini Webcam
205sonixb 0c45:6007 Sonix sn9c101 + Tas5110D
206sonixb 0c45:6009 spcaCam@120
207sonixb 0c45:600d spcaCam@120
208sonixb 0c45:6011 Microdia PC Camera (SN9C102)
209sonixb 0c45:6019 Generic Sonix OV7630
210sonixb 0c45:6024 Generic Sonix Tas5130c
211sonixb 0c45:6025 Xcam Shanga
212sonixb 0c45:6028 Sonix Btc Pc380
213sonixb 0c45:6029 spcaCam@150
214sonixb 0c45:602c Generic Sonix OV7630
215sonixb 0c45:602d LIC-200 LG
216sonixb 0c45:602e Genius VideoCam Messenger
217sonixj 0c45:6040 Speed NVC 350K
218sonixj 0c45:607c Sonix sn9c102p Hv7131R
219sonixj 0c45:60c0 Sangha Sn535
220sonixj 0c45:60ec SN9C105+MO4000
221sonixj 0c45:60fb Surfer NoName
222sonixj 0c45:60fc LG-LIC300
223sonixj 0c45:612a Avant Camera
224sonixj 0c45:612c Typhoon Rasy Cam 1.3MPix
225sonixj 0c45:6130 Sonix Pccam
226sonixj 0c45:6138 Sn9c120 Mo4000
227sonixj 0c45:613b Surfer SN-206
228sonixj 0c45:613c Sonix Pccam168
229sunplus 0d64:0303 Sunplus FashionCam DXG
230etoms 102c:6151 Qcam Sangha CIF
231etoms 102c:6251 Qcam xxxxxx VGA
232zc3xx 10fd:0128 Typhoon Webshot II USB 300k 0x0128
233spca561 10fd:7e50 FlyCam Usb 100
234zc3xx 10fd:8050 Typhoon Webshot II USB 300k
235spca501 1776:501c Arowana 300K CMOS Camera
236t613 17a1:0128 T613/TAS5130A
237vc032x 17ef:4802 Lenovo Vc0323+MI1310_SOC
238pac207 2001:f115 D-Link DSB-C120
239spca500 2899:012c Toptro Industrial
240spca508 8086:0110 Intel Easy PC Camera
241spca500 8086:0630 Intel Pocket PC Camera
242spca506 99fa:8988 Grandtec V.cap
243spca561 abcd:cdee Petcam