diff options
Diffstat (limited to 'Documentation')
24 files changed, 343 insertions, 156 deletions
diff --git a/Documentation/Changes b/Documentation/Changes index 27232be26e1a..783ddc3ce4e8 100644 --- a/Documentation/Changes +++ b/Documentation/Changes | |||
@@ -65,7 +65,7 @@ o isdn4k-utils 3.1pre1 # isdnctrl 2>&1|grep version | |||
65 | o nfs-utils 1.0.5 # showmount --version | 65 | o nfs-utils 1.0.5 # showmount --version |
66 | o procps 3.2.0 # ps --version | 66 | o procps 3.2.0 # ps --version |
67 | o oprofile 0.9 # oprofiled --version | 67 | o oprofile 0.9 # oprofiled --version |
68 | o udev 058 # udevinfo -V | 68 | o udev 071 # udevinfo -V |
69 | 69 | ||
70 | Kernel compilation | 70 | Kernel compilation |
71 | ================== | 71 | ================== |
diff --git a/Documentation/DocBook/kernel-api.tmpl b/Documentation/DocBook/kernel-api.tmpl index d650ce36485f..4d9b66d8b4db 100644 --- a/Documentation/DocBook/kernel-api.tmpl +++ b/Documentation/DocBook/kernel-api.tmpl | |||
@@ -286,7 +286,9 @@ X!Edrivers/pci/search.c | |||
286 | --> | 286 | --> |
287 | !Edrivers/pci/msi.c | 287 | !Edrivers/pci/msi.c |
288 | !Edrivers/pci/bus.c | 288 | !Edrivers/pci/bus.c |
289 | !Edrivers/pci/hotplug.c | 289 | <!-- FIXME: Removed for now since no structured comments in source |
290 | X!Edrivers/pci/hotplug.c | ||
291 | --> | ||
290 | !Edrivers/pci/probe.c | 292 | !Edrivers/pci/probe.c |
291 | !Edrivers/pci/rom.c | 293 | !Edrivers/pci/rom.c |
292 | </sect1> | 294 | </sect1> |
diff --git a/Documentation/DocBook/usb.tmpl b/Documentation/DocBook/usb.tmpl index 705c442c7bf4..15ce0f21e5e0 100644 --- a/Documentation/DocBook/usb.tmpl +++ b/Documentation/DocBook/usb.tmpl | |||
@@ -291,7 +291,7 @@ | |||
291 | 291 | ||
292 | !Edrivers/usb/core/hcd.c | 292 | !Edrivers/usb/core/hcd.c |
293 | !Edrivers/usb/core/hcd-pci.c | 293 | !Edrivers/usb/core/hcd-pci.c |
294 | !Edrivers/usb/core/buffer.c | 294 | !Idrivers/usb/core/buffer.c |
295 | </chapter> | 295 | </chapter> |
296 | 296 | ||
297 | <chapter> | 297 | <chapter> |
diff --git a/Documentation/DocBook/writing_usb_driver.tmpl b/Documentation/DocBook/writing_usb_driver.tmpl index 51f3bfb6fb6e..008a341234d0 100644 --- a/Documentation/DocBook/writing_usb_driver.tmpl +++ b/Documentation/DocBook/writing_usb_driver.tmpl | |||
@@ -345,8 +345,7 @@ if (!retval) { | |||
345 | <programlisting> | 345 | <programlisting> |
346 | static inline void skel_delete (struct usb_skel *dev) | 346 | static inline void skel_delete (struct usb_skel *dev) |
347 | { | 347 | { |
348 | if (dev->bulk_in_buffer != NULL) | 348 | kfree (dev->bulk_in_buffer); |
349 | kfree (dev->bulk_in_buffer); | ||
350 | if (dev->bulk_out_buffer != NULL) | 349 | if (dev->bulk_out_buffer != NULL) |
351 | usb_buffer_free (dev->udev, dev->bulk_out_size, | 350 | usb_buffer_free (dev->udev, dev->bulk_out_size, |
352 | dev->bulk_out_buffer, | 351 | dev->bulk_out_buffer, |
diff --git a/Documentation/cachetlb.txt b/Documentation/cachetlb.txt index e132fb1163b0..7eb715e07eda 100644 --- a/Documentation/cachetlb.txt +++ b/Documentation/cachetlb.txt | |||
@@ -49,9 +49,6 @@ changes occur: | |||
49 | page table operations such as what happens during | 49 | page table operations such as what happens during |
50 | fork, and exec. | 50 | fork, and exec. |
51 | 51 | ||
52 | Platform developers note that generic code will always | ||
53 | invoke this interface without mm->page_table_lock held. | ||
54 | |||
55 | 3) void flush_tlb_range(struct vm_area_struct *vma, | 52 | 3) void flush_tlb_range(struct vm_area_struct *vma, |
56 | unsigned long start, unsigned long end) | 53 | unsigned long start, unsigned long end) |
57 | 54 | ||
@@ -72,9 +69,6 @@ changes occur: | |||
72 | call flush_tlb_page (see below) for each entry which may be | 69 | call flush_tlb_page (see below) for each entry which may be |
73 | modified. | 70 | modified. |
74 | 71 | ||
75 | Platform developers note that generic code will always | ||
76 | invoke this interface with mm->page_table_lock held. | ||
77 | |||
78 | 4) void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr) | 72 | 4) void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr) |
79 | 73 | ||
80 | This time we need to remove the PAGE_SIZE sized translation | 74 | This time we need to remove the PAGE_SIZE sized translation |
@@ -93,9 +87,6 @@ changes occur: | |||
93 | 87 | ||
94 | This is used primarily during fault processing. | 88 | This is used primarily during fault processing. |
95 | 89 | ||
96 | Platform developers note that generic code will always | ||
97 | invoke this interface with mm->page_table_lock held. | ||
98 | |||
99 | 5) void flush_tlb_pgtables(struct mm_struct *mm, | 90 | 5) void flush_tlb_pgtables(struct mm_struct *mm, |
100 | unsigned long start, unsigned long end) | 91 | unsigned long start, unsigned long end) |
101 | 92 | ||
diff --git a/Documentation/driver-model/driver.txt b/Documentation/driver-model/driver.txt index fabaca1ab1b0..59806c9761f7 100644 --- a/Documentation/driver-model/driver.txt +++ b/Documentation/driver-model/driver.txt | |||
@@ -14,8 +14,8 @@ struct device_driver { | |||
14 | int (*probe) (struct device * dev); | 14 | int (*probe) (struct device * dev); |
15 | int (*remove) (struct device * dev); | 15 | int (*remove) (struct device * dev); |
16 | 16 | ||
17 | int (*suspend) (struct device * dev, pm_message_t state, u32 level); | 17 | int (*suspend) (struct device * dev, pm_message_t state); |
18 | int (*resume) (struct device * dev, u32 level); | 18 | int (*resume) (struct device * dev); |
19 | }; | 19 | }; |
20 | 20 | ||
21 | 21 | ||
@@ -194,69 +194,13 @@ device; i.e. anything in the device's driver_data field. | |||
194 | If the device is still present, it should quiesce the device and place | 194 | If the device is still present, it should quiesce the device and place |
195 | it into a supported low-power state. | 195 | it into a supported low-power state. |
196 | 196 | ||
197 | int (*suspend) (struct device * dev, pm_message_t state, u32 level); | 197 | int (*suspend) (struct device * dev, pm_message_t state); |
198 | 198 | ||
199 | suspend is called to put the device in a low power state. There are | 199 | suspend is called to put the device in a low power state. |
200 | several stages to successfully suspending a device, which is denoted in | ||
201 | the @level parameter. Breaking the suspend transition into several | ||
202 | stages affords the platform flexibility in performing device power | ||
203 | management based on the requirements of the system and the | ||
204 | user-defined policy. | ||
205 | 200 | ||
206 | SUSPEND_NOTIFY notifies the device that a suspend transition is about | 201 | int (*resume) (struct device * dev); |
207 | to happen. This happens on system power state transitions to verify | ||
208 | that all devices can successfully suspend. | ||
209 | 202 | ||
210 | A driver may choose to fail on this call, which should cause the | 203 | Resume is used to bring a device back from a low power state. |
211 | entire suspend transition to fail. A driver should fail only if it | ||
212 | knows that the device will not be able to be resumed properly when the | ||
213 | system wakes up again. It could also fail if it somehow determines it | ||
214 | is in the middle of an operation too important to stop. | ||
215 | |||
216 | SUSPEND_DISABLE tells the device to stop I/O transactions. When it | ||
217 | stops transactions, or what it should do with unfinished transactions | ||
218 | is a policy of the driver. After this call, the driver should not | ||
219 | accept any other I/O requests. | ||
220 | |||
221 | SUSPEND_SAVE_STATE tells the device to save the context of the | ||
222 | hardware. This includes any bus-specific hardware state and | ||
223 | device-specific hardware state. A pointer to this saved state can be | ||
224 | stored in the device's saved_state field. | ||
225 | |||
226 | SUSPEND_POWER_DOWN tells the driver to place the device in the low | ||
227 | power state requested. | ||
228 | |||
229 | Whether suspend is called with a given level is a policy of the | ||
230 | platform. Some levels may be omitted; drivers must not assume the | ||
231 | reception of any level. However, all levels must be called in the | ||
232 | order above; i.e. notification will always come before disabling; | ||
233 | disabling the device will come before suspending the device. | ||
234 | |||
235 | All calls are made with interrupts enabled, except for the | ||
236 | SUSPEND_POWER_DOWN level. | ||
237 | |||
238 | int (*resume) (struct device * dev, u32 level); | ||
239 | |||
240 | Resume is used to bring a device back from a low power state. Like the | ||
241 | suspend transition, it happens in several stages. | ||
242 | |||
243 | RESUME_POWER_ON tells the driver to set the power state to the state | ||
244 | before the suspend call (The device could have already been in a low | ||
245 | power state before the suspend call to put in a lower power state). | ||
246 | |||
247 | RESUME_RESTORE_STATE tells the driver to restore the state saved by | ||
248 | the SUSPEND_SAVE_STATE suspend call. | ||
249 | |||
250 | RESUME_ENABLE tells the driver to start accepting I/O transactions | ||
251 | again. Depending on driver policy, the device may already have pending | ||
252 | I/O requests. | ||
253 | |||
254 | RESUME_POWER_ON is called with interrupts disabled. The other resume | ||
255 | levels are called with interrupts enabled. | ||
256 | |||
257 | As with the various suspend stages, the driver must not assume that | ||
258 | any other resume calls have been or will be made. Each call should be | ||
259 | self-contained and not dependent on any external state. | ||
260 | 204 | ||
261 | 205 | ||
262 | Attributes | 206 | Attributes |
diff --git a/Documentation/driver-model/porting.txt b/Documentation/driver-model/porting.txt index ff2fef2107f0..98b233cb8b36 100644 --- a/Documentation/driver-model/porting.txt +++ b/Documentation/driver-model/porting.txt | |||
@@ -350,7 +350,7 @@ When a driver is registered, the bus's list of devices is iterated | |||
350 | over. bus->match() is called for each device that is not already | 350 | over. bus->match() is called for each device that is not already |
351 | claimed by a driver. | 351 | claimed by a driver. |
352 | 352 | ||
353 | When a device is successfully bound to a device, device->driver is | 353 | When a device is successfully bound to a driver, device->driver is |
354 | set, the device is added to a per-driver list of devices, and a | 354 | set, the device is added to a per-driver list of devices, and a |
355 | symlink is created in the driver's sysfs directory that points to the | 355 | symlink is created in the driver's sysfs directory that points to the |
356 | device's physical directory: | 356 | device's physical directory: |
diff --git a/Documentation/hwmon/it87 b/Documentation/hwmon/it87 index 0d0195040d88..7f42e441c645 100644 --- a/Documentation/hwmon/it87 +++ b/Documentation/hwmon/it87 | |||
@@ -4,18 +4,18 @@ Kernel driver it87 | |||
4 | Supported chips: | 4 | Supported chips: |
5 | * IT8705F | 5 | * IT8705F |
6 | Prefix: 'it87' | 6 | Prefix: 'it87' |
7 | Addresses scanned: from Super I/O config space, or default ISA 0x290 (8 I/O ports) | 7 | Addresses scanned: from Super I/O config space (8 I/O ports) |
8 | Datasheet: Publicly available at the ITE website | 8 | Datasheet: Publicly available at the ITE website |
9 | http://www.ite.com.tw/ | 9 | http://www.ite.com.tw/ |
10 | * IT8712F | 10 | * IT8712F |
11 | Prefix: 'it8712' | 11 | Prefix: 'it8712' |
12 | Addresses scanned: I2C 0x28 - 0x2f | 12 | Addresses scanned: I2C 0x28 - 0x2f |
13 | from Super I/O config space, or default ISA 0x290 (8 I/O ports) | 13 | from Super I/O config space (8 I/O ports) |
14 | Datasheet: Publicly available at the ITE website | 14 | Datasheet: Publicly available at the ITE website |
15 | http://www.ite.com.tw/ | 15 | http://www.ite.com.tw/ |
16 | * SiS950 [clone of IT8705F] | 16 | * SiS950 [clone of IT8705F] |
17 | Prefix: 'sis950' | 17 | Prefix: 'it87' |
18 | Addresses scanned: from Super I/O config space, or default ISA 0x290 (8 I/O ports) | 18 | Addresses scanned: from Super I/O config space (8 I/O ports) |
19 | Datasheet: No longer be available | 19 | Datasheet: No longer be available |
20 | 20 | ||
21 | Author: Christophe Gauthron <chrisg@0-in.com> | 21 | Author: Christophe Gauthron <chrisg@0-in.com> |
diff --git a/Documentation/hwmon/lm90 b/Documentation/hwmon/lm90 index 2c4cf39471f4..438cb24cee5b 100644 --- a/Documentation/hwmon/lm90 +++ b/Documentation/hwmon/lm90 | |||
@@ -24,14 +24,14 @@ Supported chips: | |||
24 | http://www.national.com/pf/LM/LM86.html | 24 | http://www.national.com/pf/LM/LM86.html |
25 | * Analog Devices ADM1032 | 25 | * Analog Devices ADM1032 |
26 | Prefix: 'adm1032' | 26 | Prefix: 'adm1032' |
27 | Addresses scanned: I2C 0x4c | 27 | Addresses scanned: I2C 0x4c and 0x4d |
28 | Datasheet: Publicly available at the Analog Devices website | 28 | Datasheet: Publicly available at the Analog Devices website |
29 | http://products.analog.com/products/info.asp?product=ADM1032 | 29 | http://www.analog.com/en/prod/0,2877,ADM1032,00.html |
30 | * Analog Devices ADT7461 | 30 | * Analog Devices ADT7461 |
31 | Prefix: 'adt7461' | 31 | Prefix: 'adt7461' |
32 | Addresses scanned: I2C 0x4c | 32 | Addresses scanned: I2C 0x4c and 0x4d |
33 | Datasheet: Publicly available at the Analog Devices website | 33 | Datasheet: Publicly available at the Analog Devices website |
34 | http://products.analog.com/products/info.asp?product=ADT7461 | 34 | http://www.analog.com/en/prod/0,2877,ADT7461,00.html |
35 | Note: Only if in ADM1032 compatibility mode | 35 | Note: Only if in ADM1032 compatibility mode |
36 | * Maxim MAX6657 | 36 | * Maxim MAX6657 |
37 | Prefix: 'max6657' | 37 | Prefix: 'max6657' |
@@ -71,8 +71,8 @@ increased resolution of the remote temperature measurement. | |||
71 | 71 | ||
72 | The different chipsets of the family are not strictly identical, although | 72 | The different chipsets of the family are not strictly identical, although |
73 | very similar. This driver doesn't handle any specific feature for now, | 73 | very similar. This driver doesn't handle any specific feature for now, |
74 | but could if there ever was a need for it. For reference, here comes a | 74 | with the exception of SMBus PEC. For reference, here comes a non-exhaustive |
75 | non-exhaustive list of specific features: | 75 | list of specific features: |
76 | 76 | ||
77 | LM90: | 77 | LM90: |
78 | * Filter and alert configuration register at 0xBF. | 78 | * Filter and alert configuration register at 0xBF. |
@@ -91,6 +91,7 @@ ADM1032: | |||
91 | * Conversion averaging. | 91 | * Conversion averaging. |
92 | * Up to 64 conversions/s. | 92 | * Up to 64 conversions/s. |
93 | * ALERT is triggered by open remote sensor. | 93 | * ALERT is triggered by open remote sensor. |
94 | * SMBus PEC support for Write Byte and Receive Byte transactions. | ||
94 | 95 | ||
95 | ADT7461 | 96 | ADT7461 |
96 | * Extended temperature range (breaks compatibility) | 97 | * Extended temperature range (breaks compatibility) |
@@ -119,3 +120,37 @@ The lm90 driver will not update its values more frequently than every | |||
119 | other second; reading them more often will do no harm, but will return | 120 | other second; reading them more often will do no harm, but will return |
120 | 'old' values. | 121 | 'old' values. |
121 | 122 | ||
123 | PEC Support | ||
124 | ----------- | ||
125 | |||
126 | The ADM1032 is the only chip of the family which supports PEC. It does | ||
127 | not support PEC on all transactions though, so some care must be taken. | ||
128 | |||
129 | When reading a register value, the PEC byte is computed and sent by the | ||
130 | ADM1032 chip. However, in the case of a combined transaction (SMBus Read | ||
131 | Byte), the ADM1032 computes the CRC value over only the second half of | ||
132 | the message rather than its entirety, because it thinks the first half | ||
133 | of the message belongs to a different transaction. As a result, the CRC | ||
134 | value differs from what the SMBus master expects, and all reads fail. | ||
135 | |||
136 | For this reason, the lm90 driver will enable PEC for the ADM1032 only if | ||
137 | the bus supports the SMBus Send Byte and Receive Byte transaction types. | ||
138 | These transactions will be used to read register values, instead of | ||
139 | SMBus Read Byte, and PEC will work properly. | ||
140 | |||
141 | Additionally, the ADM1032 doesn't support SMBus Send Byte with PEC. | ||
142 | Instead, it will try to write the PEC value to the register (because the | ||
143 | SMBus Send Byte transaction with PEC is similar to a Write Byte transaction | ||
144 | without PEC), which is not what we want. Thus, PEC is explicitely disabled | ||
145 | on SMBus Send Byte transactions in the lm90 driver. | ||
146 | |||
147 | PEC on byte data transactions represents a significant increase in bandwidth | ||
148 | usage (+33% for writes, +25% for reads) in normal conditions. With the need | ||
149 | to use two SMBus transaction for reads, this overhead jumps to +50%. Worse, | ||
150 | two transactions will typically mean twice as much delay waiting for | ||
151 | transaction completion, effectively doubling the register cache refresh time. | ||
152 | I guess reliability comes at a price, but it's quite expensive this time. | ||
153 | |||
154 | So, as not everyone might enjoy the slowdown, PEC can be disabled through | ||
155 | sysfs. Just write 0 to the "pec" file and PEC will be disabled. Write 1 | ||
156 | to that file to enable PEC again. | ||
diff --git a/Documentation/hwmon/smsc47b397 b/Documentation/hwmon/smsc47b397 index da9d80c96432..20682f15ae41 100644 --- a/Documentation/hwmon/smsc47b397 +++ b/Documentation/hwmon/smsc47b397 | |||
@@ -3,6 +3,7 @@ Kernel driver smsc47b397 | |||
3 | 3 | ||
4 | Supported chips: | 4 | Supported chips: |
5 | * SMSC LPC47B397-NC | 5 | * SMSC LPC47B397-NC |
6 | * SMSC SCH5307-NS | ||
6 | Prefix: 'smsc47b397' | 7 | Prefix: 'smsc47b397' |
7 | Addresses scanned: none, address read from Super I/O config space | 8 | Addresses scanned: none, address read from Super I/O config space |
8 | Datasheet: In this file | 9 | Datasheet: In this file |
@@ -12,11 +13,14 @@ Authors: Mark M. Hoffman <mhoffman@lightlink.com> | |||
12 | 13 | ||
13 | November 23, 2004 | 14 | November 23, 2004 |
14 | 15 | ||
15 | The following specification describes the SMSC LPC47B397-NC sensor chip | 16 | The following specification describes the SMSC LPC47B397-NC[1] sensor chip |
16 | (for which there is no public datasheet available). This document was | 17 | (for which there is no public datasheet available). This document was |
17 | provided by Craig Kelly (In-Store Broadcast Network) and edited/corrected | 18 | provided by Craig Kelly (In-Store Broadcast Network) and edited/corrected |
18 | by Mark M. Hoffman <mhoffman@lightlink.com>. | 19 | by Mark M. Hoffman <mhoffman@lightlink.com>. |
19 | 20 | ||
21 | [1] And SMSC SCH5307-NS, which has a different device ID but is otherwise | ||
22 | compatible. | ||
23 | |||
20 | * * * * * | 24 | * * * * * |
21 | 25 | ||
22 | Methods for detecting the HP SIO and reading the thermal data on a dc7100. | 26 | Methods for detecting the HP SIO and reading the thermal data on a dc7100. |
@@ -127,7 +131,7 @@ OUT DX,AL | |||
127 | The registers of interest for identifying the SIO on the dc7100 are Device ID | 131 | The registers of interest for identifying the SIO on the dc7100 are Device ID |
128 | (0x20) and Device Rev (0x21). | 132 | (0x20) and Device Rev (0x21). |
129 | 133 | ||
130 | The Device ID will read 0X6F | 134 | The Device ID will read 0x6F (for SCH5307-NS, 0x81) |
131 | The Device Rev currently reads 0x01 | 135 | The Device Rev currently reads 0x01 |
132 | 136 | ||
133 | Obtaining the HWM Base Address. | 137 | Obtaining the HWM Base Address. |
diff --git a/Documentation/hwmon/smsc47m1 b/Documentation/hwmon/smsc47m1 index 34e6478c1425..c15bbe68264e 100644 --- a/Documentation/hwmon/smsc47m1 +++ b/Documentation/hwmon/smsc47m1 | |||
@@ -12,6 +12,10 @@ Supported chips: | |||
12 | http://www.smsc.com/main/datasheets/47m14x.pdf | 12 | http://www.smsc.com/main/datasheets/47m14x.pdf |
13 | http://www.smsc.com/main/tools/discontinued/47m15x.pdf | 13 | http://www.smsc.com/main/tools/discontinued/47m15x.pdf |
14 | http://www.smsc.com/main/datasheets/47m192.pdf | 14 | http://www.smsc.com/main/datasheets/47m192.pdf |
15 | * SMSC LPC47M997 | ||
16 | Addresses scanned: none, address read from Super I/O config space | ||
17 | Prefix: 'smsc47m1' | ||
18 | Datasheet: none | ||
15 | 19 | ||
16 | Authors: | 20 | Authors: |
17 | Mark D. Studebaker <mdsxyz123@yahoo.com>, | 21 | Mark D. Studebaker <mdsxyz123@yahoo.com>, |
@@ -30,6 +34,9 @@ The 47M15x and 47M192 chips contain a full 'hardware monitoring block' | |||
30 | in addition to the fan monitoring and control. The hardware monitoring | 34 | in addition to the fan monitoring and control. The hardware monitoring |
31 | block is not supported by the driver. | 35 | block is not supported by the driver. |
32 | 36 | ||
37 | No documentation is available for the 47M997, but it has the same device | ||
38 | ID as the 47M15x and 47M192 chips and seems to be compatible. | ||
39 | |||
33 | Fan rotation speeds are reported in RPM (rotations per minute). An alarm is | 40 | Fan rotation speeds are reported in RPM (rotations per minute). An alarm is |
34 | triggered if the rotation speed has dropped below a programmable limit. Fan | 41 | triggered if the rotation speed has dropped below a programmable limit. Fan |
35 | readings can be divided by a programmable divider (1, 2, 4 or 8) to give | 42 | readings can be divided by a programmable divider (1, 2, 4 or 8) to give |
diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface index 346400519d0d..764cdc5480e7 100644 --- a/Documentation/hwmon/sysfs-interface +++ b/Documentation/hwmon/sysfs-interface | |||
@@ -272,3 +272,6 @@ beep_mask Bitmask for beep. | |||
272 | 272 | ||
273 | eeprom Raw EEPROM data in binary form. | 273 | eeprom Raw EEPROM data in binary form. |
274 | Read only. | 274 | Read only. |
275 | |||
276 | pec Enable or disable PEC (SMBus only) | ||
277 | Read/Write | ||
diff --git a/Documentation/hwmon/via686a b/Documentation/hwmon/via686a index b82014cb7c53..a936fb3824b2 100644 --- a/Documentation/hwmon/via686a +++ b/Documentation/hwmon/via686a | |||
@@ -18,8 +18,9 @@ Authors: | |||
18 | Module Parameters | 18 | Module Parameters |
19 | ----------------- | 19 | ----------------- |
20 | 20 | ||
21 | force_addr=0xaddr Set the I/O base address. Useful for Asus A7V boards | 21 | force_addr=0xaddr Set the I/O base address. Useful for boards that |
22 | that don't set the address in the BIOS. Does not do a | 22 | don't set the address in the BIOS. Look for a BIOS |
23 | upgrade before resorting to this. Does not do a | ||
23 | PCI force; the via686a must still be present in lspci. | 24 | PCI force; the via686a must still be present in lspci. |
24 | Don't use this unless the driver complains that the | 25 | Don't use this unless the driver complains that the |
25 | base address is not set. | 26 | base address is not set. |
@@ -63,3 +64,15 @@ miss once-only alarms. | |||
63 | 64 | ||
64 | The driver only updates its values each 1.5 seconds; reading it more often | 65 | The driver only updates its values each 1.5 seconds; reading it more often |
65 | will do no harm, but will return 'old' values. | 66 | will do no harm, but will return 'old' values. |
67 | |||
68 | Known Issues | ||
69 | ------------ | ||
70 | |||
71 | This driver handles sensors integrated in some VIA south bridges. It is | ||
72 | possible that a motherboard maker used a VT82C686A/B chip as part of a | ||
73 | product design but was not interested in its hardware monitoring features, | ||
74 | in which case the sensor inputs will not be wired. This is the case of | ||
75 | the Asus K7V, A7V and A7V133 motherboards, to name only a few of them. | ||
76 | So, if you need the force_addr parameter, and end up with values which | ||
77 | don't seem to make any sense, don't look any further: your chip is simply | ||
78 | not wired for hardware monitoring. | ||
diff --git a/Documentation/i2c/busses/i2c-i810 b/Documentation/i2c/busses/i2c-i810 index 0544eb332887..83c3b9743c3c 100644 --- a/Documentation/i2c/busses/i2c-i810 +++ b/Documentation/i2c/busses/i2c-i810 | |||
@@ -2,6 +2,7 @@ Kernel driver i2c-i810 | |||
2 | 2 | ||
3 | Supported adapters: | 3 | Supported adapters: |
4 | * Intel 82810, 82810-DC100, 82810E, and 82815 (GMCH) | 4 | * Intel 82810, 82810-DC100, 82810E, and 82815 (GMCH) |
5 | * Intel 82845G (GMCH) | ||
5 | 6 | ||
6 | Authors: | 7 | Authors: |
7 | Frodo Looijaard <frodol@dds.nl>, | 8 | Frodo Looijaard <frodol@dds.nl>, |
diff --git a/Documentation/i2c/busses/i2c-viapro b/Documentation/i2c/busses/i2c-viapro index 702f5ac68c09..9363b8bd6109 100644 --- a/Documentation/i2c/busses/i2c-viapro +++ b/Documentation/i2c/busses/i2c-viapro | |||
@@ -4,17 +4,18 @@ Supported adapters: | |||
4 | * VIA Technologies, Inc. VT82C596A/B | 4 | * VIA Technologies, Inc. VT82C596A/B |
5 | Datasheet: Sometimes available at the VIA website | 5 | Datasheet: Sometimes available at the VIA website |
6 | 6 | ||
7 | * VIA Technologies, Inc. VT82C686A/B | 7 | * VIA Technologies, Inc. VT82C686A/B |
8 | Datasheet: Sometimes available at the VIA website | 8 | Datasheet: Sometimes available at the VIA website |
9 | 9 | ||
10 | * VIA Technologies, Inc. VT8231, VT8233, VT8233A, VT8235, VT8237 | 10 | * VIA Technologies, Inc. VT8231, VT8233, VT8233A, VT8235, VT8237 |
11 | Datasheet: available on request from Via | 11 | Datasheet: available on request from Via |
12 | 12 | ||
13 | Authors: | 13 | Authors: |
14 | Frodo Looijaard <frodol@dds.nl>, | 14 | Frodo Looijaard <frodol@dds.nl>, |
15 | Philip Edelbrock <phil@netroedge.com>, | 15 | Philip Edelbrock <phil@netroedge.com>, |
16 | Kyösti Mälkki <kmalkki@cc.hut.fi>, | 16 | Kyösti Mälkki <kmalkki@cc.hut.fi>, |
17 | Mark D. Studebaker <mdsxyz123@yahoo.com> | 17 | Mark D. Studebaker <mdsxyz123@yahoo.com>, |
18 | Jean Delvare <khali@linux-fr.org> | ||
18 | 19 | ||
19 | Module Parameters | 20 | Module Parameters |
20 | ----------------- | 21 | ----------------- |
@@ -28,20 +29,22 @@ Description | |||
28 | ----------- | 29 | ----------- |
29 | 30 | ||
30 | i2c-viapro is a true SMBus host driver for motherboards with one of the | 31 | i2c-viapro is a true SMBus host driver for motherboards with one of the |
31 | supported VIA southbridges. | 32 | supported VIA south bridges. |
32 | 33 | ||
33 | Your lspci -n listing must show one of these : | 34 | Your lspci -n listing must show one of these : |
34 | 35 | ||
35 | device 1106:3050 (VT82C596 function 3) | 36 | device 1106:3050 (VT82C596A function 3) |
36 | device 1106:3051 (VT82C596 function 3) | 37 | device 1106:3051 (VT82C596B function 3) |
37 | device 1106:3057 (VT82C686 function 4) | 38 | device 1106:3057 (VT82C686 function 4) |
38 | device 1106:3074 (VT8233) | 39 | device 1106:3074 (VT8233) |
39 | device 1106:3147 (VT8233A) | 40 | device 1106:3147 (VT8233A) |
40 | device 1106:8235 (VT8231) | 41 | device 1106:8235 (VT8231 function 4) |
41 | devide 1106:3177 (VT8235) | 42 | device 1106:3177 (VT8235) |
42 | devide 1106:3227 (VT8237) | 43 | device 1106:3227 (VT8237R) |
43 | 44 | ||
44 | If none of these show up, you should look in the BIOS for settings like | 45 | If none of these show up, you should look in the BIOS for settings like |
45 | enable ACPI / SMBus or even USB. | 46 | enable ACPI / SMBus or even USB. |
46 | 47 | ||
47 | 48 | Except for the oldest chips (VT82C596A/B, VT82C686A and most probably | |
49 | VT8231), this driver supports I2C block transactions. Such transactions | ||
50 | are mainly useful to read from and write to EEPROMs. | ||
diff --git a/Documentation/i2c/chips/x1205 b/Documentation/i2c/chips/x1205 new file mode 100644 index 000000000000..09407c991fe5 --- /dev/null +++ b/Documentation/i2c/chips/x1205 | |||
@@ -0,0 +1,38 @@ | |||
1 | Kernel driver x1205 | ||
2 | =================== | ||
3 | |||
4 | Supported chips: | ||
5 | * Xicor X1205 RTC | ||
6 | Prefix: 'x1205' | ||
7 | Addresses scanned: none | ||
8 | Datasheet: http://www.intersil.com/cda/deviceinfo/0,1477,X1205,00.html | ||
9 | |||
10 | Authors: | ||
11 | Karen Spearel <kas11@tampabay.rr.com>, | ||
12 | Alessandro Zummo <a.zummo@towertech.it> | ||
13 | |||
14 | Description | ||
15 | ----------- | ||
16 | |||
17 | This module aims to provide complete access to the Xicor X1205 RTC. | ||
18 | Recently Xicor has merged with Intersil, but the chip is | ||
19 | still sold under the Xicor brand. | ||
20 | |||
21 | This chip is located at address 0x6f and uses a 2-byte register addressing. | ||
22 | Two bytes need to be written to read a single register, while most | ||
23 | other chips just require one and take the second one as the data | ||
24 | to be written. To prevent corrupting unknown chips, the user must | ||
25 | explicitely set the probe parameter. | ||
26 | |||
27 | example: | ||
28 | |||
29 | modprobe x1205 probe=0,0x6f | ||
30 | |||
31 | The module supports one more option, hctosys, which is used to set the | ||
32 | software clock from the x1205. On systems where the x1205 is the | ||
33 | only hardware rtc, this parameter could be used to achieve a correct | ||
34 | date/time earlier in the system boot sequence. | ||
35 | |||
36 | example: | ||
37 | |||
38 | modprobe x1205 probe=0,0x6f hctosys=1 | ||
diff --git a/Documentation/i2c/functionality b/Documentation/i2c/functionality index 41ffefbdc60c..60cca249e452 100644 --- a/Documentation/i2c/functionality +++ b/Documentation/i2c/functionality | |||
@@ -17,9 +17,10 @@ For the most up-to-date list of functionality constants, please check | |||
17 | I2C_FUNC_I2C Plain i2c-level commands (Pure SMBus | 17 | I2C_FUNC_I2C Plain i2c-level commands (Pure SMBus |
18 | adapters typically can not do these) | 18 | adapters typically can not do these) |
19 | I2C_FUNC_10BIT_ADDR Handles the 10-bit address extensions | 19 | I2C_FUNC_10BIT_ADDR Handles the 10-bit address extensions |
20 | I2C_FUNC_PROTOCOL_MANGLING Knows about the I2C_M_REV_DIR_ADDR, | 20 | I2C_FUNC_PROTOCOL_MANGLING Knows about the I2C_M_IGNORE_NAK, |
21 | I2C_M_REV_DIR_ADDR and I2C_M_REV_DIR_NOSTART | 21 | I2C_M_REV_DIR_ADDR, I2C_M_NOSTART and |
22 | flags (which modify the i2c protocol!) | 22 | I2C_M_NO_RD_ACK flags (which modify the |
23 | I2C protocol!) | ||
23 | I2C_FUNC_SMBUS_QUICK Handles the SMBus write_quick command | 24 | I2C_FUNC_SMBUS_QUICK Handles the SMBus write_quick command |
24 | I2C_FUNC_SMBUS_READ_BYTE Handles the SMBus read_byte command | 25 | I2C_FUNC_SMBUS_READ_BYTE Handles the SMBus read_byte command |
25 | I2C_FUNC_SMBUS_WRITE_BYTE Handles the SMBus write_byte command | 26 | I2C_FUNC_SMBUS_WRITE_BYTE Handles the SMBus write_byte command |
diff --git a/Documentation/i2c/porting-clients b/Documentation/i2c/porting-clients index 4849dfd6961c..184fac2377aa 100644 --- a/Documentation/i2c/porting-clients +++ b/Documentation/i2c/porting-clients | |||
@@ -82,7 +82,7 @@ Technical changes: | |||
82 | exit and exit_free. For i2c+isa drivers, labels should be named | 82 | exit and exit_free. For i2c+isa drivers, labels should be named |
83 | ERROR0, ERROR1 and ERROR2. Don't forget to properly set err before | 83 | ERROR0, ERROR1 and ERROR2. Don't forget to properly set err before |
84 | jumping to error labels. By the way, labels should be left-aligned. | 84 | jumping to error labels. By the way, labels should be left-aligned. |
85 | Use memset to fill the client and data area with 0x00. | 85 | Use kzalloc instead of kmalloc. |
86 | Use i2c_set_clientdata to set the client data (as opposed to | 86 | Use i2c_set_clientdata to set the client data (as opposed to |
87 | a direct access to client->data). | 87 | a direct access to client->data). |
88 | Use strlcpy instead of strcpy to copy the client name. | 88 | Use strlcpy instead of strcpy to copy the client name. |
diff --git a/Documentation/i2c/writing-clients b/Documentation/i2c/writing-clients index 077275722a7c..e94d9c6cc522 100644 --- a/Documentation/i2c/writing-clients +++ b/Documentation/i2c/writing-clients | |||
@@ -33,8 +33,8 @@ static struct i2c_driver foo_driver = { | |||
33 | .command = &foo_command /* may be NULL */ | 33 | .command = &foo_command /* may be NULL */ |
34 | } | 34 | } |
35 | 35 | ||
36 | The name can be chosen freely, and may be upto 40 characters long. Please | 36 | The name field must match the driver name, including the case. It must not |
37 | use something descriptive here. | 37 | contain spaces, and may be up to 31 characters long. |
38 | 38 | ||
39 | Don't worry about the flags field; just put I2C_DF_NOTIFY into it. This | 39 | Don't worry about the flags field; just put I2C_DF_NOTIFY into it. This |
40 | means that your driver will be notified when new adapters are found. | 40 | means that your driver will be notified when new adapters are found. |
@@ -43,9 +43,6 @@ This is almost always what you want. | |||
43 | All other fields are for call-back functions which will be explained | 43 | All other fields are for call-back functions which will be explained |
44 | below. | 44 | below. |
45 | 45 | ||
46 | There use to be two additional fields in this structure, inc_use et dec_use, | ||
47 | for module usage count, but these fields were obsoleted and removed. | ||
48 | |||
49 | 46 | ||
50 | Extra client data | 47 | Extra client data |
51 | ================= | 48 | ================= |
@@ -58,6 +55,7 @@ be very useful. | |||
58 | An example structure is below. | 55 | An example structure is below. |
59 | 56 | ||
60 | struct foo_data { | 57 | struct foo_data { |
58 | struct i2c_client client; | ||
61 | struct semaphore lock; /* For ISA access in `sensors' drivers. */ | 59 | struct semaphore lock; /* For ISA access in `sensors' drivers. */ |
62 | int sysctl_id; /* To keep the /proc directory entry for | 60 | int sysctl_id; /* To keep the /proc directory entry for |
63 | `sensors' drivers. */ | 61 | `sensors' drivers. */ |
@@ -310,22 +308,15 @@ For now, you can ignore the `flags' parameter. It is there for future use. | |||
310 | client structure, even though we cannot fill it completely yet. | 308 | client structure, even though we cannot fill it completely yet. |
311 | But it allows us to access several i2c functions safely */ | 309 | But it allows us to access several i2c functions safely */ |
312 | 310 | ||
313 | /* Note that we reserve some space for foo_data too. If you don't | 311 | if (!(data = kzalloc(sizeof(struct foo_data), GFP_KERNEL))) { |
314 | need it, remove it. We do it here to help to lessen memory | ||
315 | fragmentation. */ | ||
316 | if (! (new_client = kmalloc(sizeof(struct i2c_client) + | ||
317 | sizeof(struct foo_data), | ||
318 | GFP_KERNEL))) { | ||
319 | err = -ENOMEM; | 312 | err = -ENOMEM; |
320 | goto ERROR0; | 313 | goto ERROR0; |
321 | } | 314 | } |
322 | 315 | ||
323 | /* This is tricky, but it will set the data to the right value. */ | 316 | new_client = &data->client; |
324 | client->data = new_client + 1; | 317 | i2c_set_clientdata(new_client, data); |
325 | data = (struct foo_data *) (client->data); | ||
326 | 318 | ||
327 | new_client->addr = address; | 319 | new_client->addr = address; |
328 | new_client->data = data; | ||
329 | new_client->adapter = adapter; | 320 | new_client->adapter = adapter; |
330 | new_client->driver = &foo_driver; | 321 | new_client->driver = &foo_driver; |
331 | new_client->flags = 0; | 322 | new_client->flags = 0; |
@@ -451,7 +442,7 @@ much simpler than the attachment code, fortunately! | |||
451 | release_region(client->addr,LM78_EXTENT); | 442 | release_region(client->addr,LM78_EXTENT); |
452 | /* HYBRID SENSORS CHIP ONLY END */ | 443 | /* HYBRID SENSORS CHIP ONLY END */ |
453 | 444 | ||
454 | kfree(client); /* Frees client data too, if allocated at the same time */ | 445 | kfree(data); |
455 | return 0; | 446 | return 0; |
456 | } | 447 | } |
457 | 448 | ||
@@ -576,12 +567,12 @@ SMBus communication | |||
576 | extern s32 i2c_smbus_write_block_data(struct i2c_client * client, | 567 | extern s32 i2c_smbus_write_block_data(struct i2c_client * client, |
577 | u8 command, u8 length, | 568 | u8 command, u8 length, |
578 | u8 *values); | 569 | u8 *values); |
570 | extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client * client, | ||
571 | u8 command, u8 *values); | ||
579 | 572 | ||
580 | These ones were removed in Linux 2.6.10 because they had no users, but could | 573 | These ones were removed in Linux 2.6.10 because they had no users, but could |
581 | be added back later if needed: | 574 | be added back later if needed: |
582 | 575 | ||
583 | extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client * client, | ||
584 | u8 command, u8 *values); | ||
585 | extern s32 i2c_smbus_read_block_data(struct i2c_client * client, | 576 | extern s32 i2c_smbus_read_block_data(struct i2c_client * client, |
586 | u8 command, u8 *values); | 577 | u8 command, u8 *values); |
587 | extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client * client, | 578 | extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client * client, |
diff --git a/Documentation/input/yealink.txt b/Documentation/input/yealink.txt index 85f095a7ad04..0962c5c948be 100644 --- a/Documentation/input/yealink.txt +++ b/Documentation/input/yealink.txt | |||
@@ -2,7 +2,6 @@ Driver documentation for yealink usb-p1k phones | |||
2 | 2 | ||
3 | 0. Status | 3 | 0. Status |
4 | ~~~~~~~~~ | 4 | ~~~~~~~~~ |
5 | |||
6 | The p1k is a relatively cheap usb 1.1 phone with: | 5 | The p1k is a relatively cheap usb 1.1 phone with: |
7 | - keyboard full support, yealink.ko / input event API | 6 | - keyboard full support, yealink.ko / input event API |
8 | - LCD full support, yealink.ko / sysfs API | 7 | - LCD full support, yealink.ko / sysfs API |
@@ -17,9 +16,8 @@ For vendor documentation see http://www.yealink.com | |||
17 | 16 | ||
18 | 1. Compilation (stand alone version) | 17 | 1. Compilation (stand alone version) |
19 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | 18 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
20 | |||
21 | Currently only kernel 2.6.x.y versions are supported. | 19 | Currently only kernel 2.6.x.y versions are supported. |
22 | In order to build the yealink.ko module do: | 20 | In order to build the yealink.ko module do |
23 | 21 | ||
24 | make | 22 | make |
25 | 23 | ||
@@ -28,6 +26,21 @@ the Makefile is pointing to the location where your kernel sources | |||
28 | are located, default /usr/src/linux. | 26 | are located, default /usr/src/linux. |
29 | 27 | ||
30 | 28 | ||
29 | 1.1 Troubleshooting | ||
30 | ~~~~~~~~~~~~~~~~~~~ | ||
31 | Q: Module yealink compiled and installed without any problem but phone | ||
32 | is not initialized and does not react to any actions. | ||
33 | A: If you see something like: | ||
34 | hiddev0: USB HID v1.00 Device [Yealink Network Technology Ltd. VOIP USB Phone | ||
35 | in dmesg, it means that the hid driver has grabbed the device first. Try to | ||
36 | load module yealink before any other usb hid driver. Please see the | ||
37 | instructions provided by your distribution on module configuration. | ||
38 | |||
39 | Q: Phone is working now (displays version and accepts keypad input) but I can't | ||
40 | find the sysfs files. | ||
41 | A: The sysfs files are located on the particular usb endpoint. On most | ||
42 | distributions you can do: "find /sys/ -name get_icons" for a hint. | ||
43 | |||
31 | 44 | ||
32 | 2. keyboard features | 45 | 2. keyboard features |
33 | ~~~~~~~~~~~~~~~~~~~~ | 46 | ~~~~~~~~~~~~~~~~~~~~ |
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 971589a9752d..5dffcfefc3c7 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt | |||
@@ -1460,8 +1460,6 @@ running once the system is up. | |||
1460 | stifb= [HW] | 1460 | stifb= [HW] |
1461 | Format: bpp:<bpp1>[:<bpp2>[:<bpp3>...]] | 1461 | Format: bpp:<bpp1>[:<bpp2>[:<bpp3>...]] |
1462 | 1462 | ||
1463 | stram_swap= [HW,M68k] | ||
1464 | |||
1465 | swiotlb= [IA-64] Number of I/O TLB slabs | 1463 | swiotlb= [IA-64] Number of I/O TLB slabs |
1466 | 1464 | ||
1467 | switches= [HW,M68k] | 1465 | switches= [HW,M68k] |
@@ -1517,8 +1515,6 @@ running once the system is up. | |||
1517 | uart6850= [HW,OSS] | 1515 | uart6850= [HW,OSS] |
1518 | Format: <io>,<irq> | 1516 | Format: <io>,<irq> |
1519 | 1517 | ||
1520 | usb-handoff [HW] Enable early USB BIOS -> OS handoff | ||
1521 | |||
1522 | usbhid.mousepoll= | 1518 | usbhid.mousepoll= |
1523 | [USBHID] The interval which mice are to be polled at. | 1519 | [USBHID] The interval which mice are to be polled at. |
1524 | 1520 | ||
diff --git a/Documentation/m68k/kernel-options.txt b/Documentation/m68k/kernel-options.txt index e191baad8308..d5d3f064f552 100644 --- a/Documentation/m68k/kernel-options.txt +++ b/Documentation/m68k/kernel-options.txt | |||
@@ -626,7 +626,7 @@ ignored (others aren't affected). | |||
626 | can be performed in optimal order. Not all SCSI devices support | 626 | can be performed in optimal order. Not all SCSI devices support |
627 | tagged queuing (:-(). | 627 | tagged queuing (:-(). |
628 | 628 | ||
629 | 4.6 switches= | 629 | 4.5 switches= |
630 | ------------- | 630 | ------------- |
631 | 631 | ||
632 | Syntax: switches=<list of switches> | 632 | Syntax: switches=<list of switches> |
@@ -661,28 +661,6 @@ correctly. | |||
661 | earlier initialization ("ov_"-less) takes precedence. But the | 661 | earlier initialization ("ov_"-less) takes precedence. But the |
662 | switching-off on reset still happens in this case. | 662 | switching-off on reset still happens in this case. |
663 | 663 | ||
664 | 4.5) stram_swap= | ||
665 | ---------------- | ||
666 | |||
667 | Syntax: stram_swap=<do_swap>[,<max_swap>] | ||
668 | |||
669 | This option is available only if the kernel has been compiled with | ||
670 | CONFIG_STRAM_SWAP enabled. Normally, the kernel then determines | ||
671 | dynamically whether to actually use ST-RAM as swap space. (Currently, | ||
672 | the fraction of ST-RAM must be less or equal 1/3 of total memory to | ||
673 | enable this swapping.) You can override the kernel's decision by | ||
674 | specifying this option. 1 for <do_swap> means always enable the swap, | ||
675 | even if you have less alternate RAM. 0 stands for never swap to | ||
676 | ST-RAM, even if it's small enough compared to the rest of memory. | ||
677 | |||
678 | If ST-RAM swapping is enabled, the kernel usually uses all free | ||
679 | ST-RAM as swap "device". If the kernel resides in ST-RAM, the region | ||
680 | allocated by it is obviously never used for swapping :-) You can also | ||
681 | limit this amount by specifying the second parameter, <max_swap>, if | ||
682 | you want to use parts of ST-RAM as normal system memory. <max_swap> is | ||
683 | in kBytes and the number should be a multiple of 4 (otherwise: rounded | ||
684 | down). | ||
685 | |||
686 | 5) Options for Amiga Only: | 664 | 5) Options for Amiga Only: |
687 | ========================== | 665 | ========================== |
688 | 666 | ||
diff --git a/Documentation/mips/AU1xxx_IDE.README b/Documentation/mips/AU1xxx_IDE.README new file mode 100644 index 000000000000..a7e4c4ea3560 --- /dev/null +++ b/Documentation/mips/AU1xxx_IDE.README | |||
@@ -0,0 +1,168 @@ | |||
1 | README for MIPS AU1XXX IDE driver - Released 2005-07-15 | ||
2 | |||
3 | ABOUT | ||
4 | ----- | ||
5 | This file describes the 'drivers/ide/mips/au1xxx-ide.c', related files and the | ||
6 | services they provide. | ||
7 | |||
8 | If you are short in patience and just want to know how to add your hard disc to | ||
9 | the white or black list, go to the 'ADD NEW HARD DISC TO WHITE OR BLACK LIST' | ||
10 | section. | ||
11 | |||
12 | |||
13 | LICENSE | ||
14 | ------- | ||
15 | |||
16 | Copyright (c) 2003-2005 AMD, Personal Connectivity Solutions | ||
17 | |||
18 | This program is free software; you can redistribute it and/or modify it under | ||
19 | the terms of the GNU General Public License as published by the Free Software | ||
20 | Foundation; either version 2 of the License, or (at your option) any later | ||
21 | version. | ||
22 | |||
23 | THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, | ||
24 | INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | ||
25 | FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR | ||
26 | BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | ||
27 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | ||
28 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | ||
29 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | ||
30 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
31 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
32 | POSSIBILITY OF SUCH DAMAGE. | ||
33 | |||
34 | You should have received a copy of the GNU General Public License along with | ||
35 | this program; if not, write to the Free Software Foundation, Inc., | ||
36 | 675 Mass Ave, Cambridge, MA 02139, USA. | ||
37 | |||
38 | Note: for more information, please refer "AMD Alchemy Au1200/Au1550 IDE | ||
39 | Interface and Linux Device Driver" Application Note. | ||
40 | |||
41 | |||
42 | FILES, CONFIGS AND COMPATABILITY | ||
43 | -------------------------------- | ||
44 | |||
45 | Two files are introduced: | ||
46 | |||
47 | a) 'include/asm-mips/mach-au1x00/au1xxx_ide.h' | ||
48 | containes : struct _auide_hwif | ||
49 | struct drive_list_entry dma_white_list | ||
50 | struct drive_list_entry dma_black_list | ||
51 | timing parameters for PIO mode 0/1/2/3/4 | ||
52 | timing parameters for MWDMA 0/1/2 | ||
53 | |||
54 | b) 'drivers/ide/mips/au1xxx-ide.c' | ||
55 | contains the functionality of the AU1XXX IDE driver | ||
56 | |||
57 | Four configs variables are introduced: | ||
58 | |||
59 | CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA - enable the PIO+DBDMA mode | ||
60 | CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA - enable the MWDMA mode | ||
61 | CONFIG_BLK_DEV_IDE_AU1XXX_BURSTABLE_ON - set Burstable FIFO in DBDMA | ||
62 | controler | ||
63 | CONFIG_BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ - maximum transfer size | ||
64 | per descriptor | ||
65 | |||
66 | If MWDMA is enabled and the connected hard disc is not on the white list, the | ||
67 | kernel switches to a "safe mwdma mode" at boot time. In this mode the IDE | ||
68 | performance is substantial slower then in full speed mwdma. In this case | ||
69 | please add your hard disc to the white list (follow instruction from 'ADD NEW | ||
70 | HARD DISC TO WHITE OR BLACK LIST' section). | ||
71 | |||
72 | |||
73 | SUPPORTED IDE MODES | ||
74 | ------------------- | ||
75 | |||
76 | The AU1XXX IDE driver supported all PIO modes - PIO mode 0/1/2/3/4 - and all | ||
77 | MWDMA modes - MWDMA 0/1/2 -. There is no support for SWDMA and UDMA mode. | ||
78 | |||
79 | To change the PIO mode use the program hdparm with option -p, e.g. | ||
80 | 'hdparm -p0 [device]' for PIO mode 0. To enable the MWDMA mode use the option | ||
81 | -X, e.g. 'hdparm -X32 [device]' for MWDMA mode 0. | ||
82 | |||
83 | |||
84 | PERFORMANCE CONFIGURATIONS | ||
85 | -------------------------- | ||
86 | |||
87 | If the used system doesn't need USB support enable the following kernel configs: | ||
88 | |||
89 | CONFIG_IDE=y | ||
90 | CONFIG_BLK_DEV_IDE=y | ||
91 | CONFIG_IDE_GENERIC=y | ||
92 | CONFIG_BLK_DEV_IDEPCI=y | ||
93 | CONFIG_BLK_DEV_GENERIC=y | ||
94 | CONFIG_BLK_DEV_IDEDMA_PCI=y | ||
95 | CONFIG_IDEDMA_PCI_AUTO=y | ||
96 | CONFIG_BLK_DEV_IDE_AU1XXX=y | ||
97 | CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA=y | ||
98 | CONFIG_BLK_DEV_IDE_AU1XXX_BURSTABLE_ON=y | ||
99 | CONFIG_BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ=128 | ||
100 | CONFIG_BLK_DEV_IDEDMA=y | ||
101 | CONFIG_IDEDMA_AUTO=y | ||
102 | |||
103 | If the used system need the USB support enable the following kernel configs for | ||
104 | high IDE to USB throughput. | ||
105 | |||
106 | CONFIG_BLK_DEV_IDEDISK=y | ||
107 | CONFIG_IDE_GENERIC=y | ||
108 | CONFIG_BLK_DEV_IDEPCI=y | ||
109 | CONFIG_BLK_DEV_GENERIC=y | ||
110 | CONFIG_BLK_DEV_IDEDMA_PCI=y | ||
111 | CONFIG_IDEDMA_PCI_AUTO=y | ||
112 | CONFIG_BLK_DEV_IDE_AU1XXX=y | ||
113 | CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA=y | ||
114 | CONFIG_BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ=128 | ||
115 | CONFIG_BLK_DEV_IDEDMA=y | ||
116 | CONFIG_IDEDMA_AUTO=y | ||
117 | |||
118 | |||
119 | ADD NEW HARD DISC TO WHITE OR BLACK LIST | ||
120 | ---------------------------------------- | ||
121 | |||
122 | Step 1 : detect the model name of your hard disc | ||
123 | |||
124 | a) connect your hard disc to the AU1XXX | ||
125 | |||
126 | b) boot your kernel and get the hard disc model. | ||
127 | |||
128 | Example boot log: | ||
129 | |||
130 | --snipped-- | ||
131 | Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 | ||
132 | ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx | ||
133 | Au1xxx IDE(builtin) configured for MWDMA2 | ||
134 | Probing IDE interface ide0... | ||
135 | hda: Maxtor 6E040L0, ATA DISK drive | ||
136 | ide0 at 0xac800000-0xac800007,0xac8001c0 on irq 64 | ||
137 | hda: max request size: 64KiB | ||
138 | hda: 80293248 sectors (41110 MB) w/2048KiB Cache, CHS=65535/16/63, (U)DMA | ||
139 | --snipped-- | ||
140 | |||
141 | In this example 'Maxtor 6E040L0'. | ||
142 | |||
143 | Step 2 : edit 'include/asm-mips/mach-au1x00/au1xxx_ide.h' | ||
144 | |||
145 | Add your hard disc to the dma_white_list or dma_black_list structur. | ||
146 | |||
147 | Step 3 : Recompile the kernel | ||
148 | |||
149 | Enable MWDMA support in the kernel configuration. Recompile the kernel and | ||
150 | reboot. | ||
151 | |||
152 | Step 4 : Tests | ||
153 | |||
154 | If you have add a hard disc to the white list, please run some stress tests | ||
155 | for verification. | ||
156 | |||
157 | |||
158 | ACKNOWLEDGMENTS | ||
159 | --------------- | ||
160 | |||
161 | These drivers wouldn't have been done without the base of kernel 2.4.x AU1XXX | ||
162 | IDE driver from AMD. | ||
163 | |||
164 | Additional input also from: | ||
165 | Matthias Lenk <matthias.lenk@amd.com> | ||
166 | |||
167 | Happy hacking! | ||
168 | Enrico Walther <enrico.walther@amd.com> | ||
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index b433c8a27e2d..65895bb51414 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt | |||
@@ -309,7 +309,7 @@ tcp_tso_win_divisor - INTEGER | |||
309 | can be consumed by a single TSO frame. | 309 | can be consumed by a single TSO frame. |
310 | The setting of this parameter is a choice between burstiness and | 310 | The setting of this parameter is a choice between burstiness and |
311 | building larger TSO frames. | 311 | building larger TSO frames. |
312 | Default: 8 | 312 | Default: 3 |
313 | 313 | ||
314 | tcp_frto - BOOLEAN | 314 | tcp_frto - BOOLEAN |
315 | Enables F-RTO, an enhanced recovery algorithm for TCP retransmission | 315 | Enables F-RTO, an enhanced recovery algorithm for TCP retransmission |