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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-04 14:47:58 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-04 14:47:58 -0400
commit6ba74014c1ab0e37af7de6f64b4eccbbae3cb9e7 (patch)
tree8f3892fc44f1e403675a6d7e88fda5c70e56ee4c /Documentation
parent5abd9ccced7a726c817dd6b5b96bc933859138d1 (diff)
parent3ff1c25927e3af61c6bf0e4ed959504058ae4565 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1443 commits) phy/marvell: add 88ec048 support igb: Program MDICNFG register prior to PHY init e1000e: correct MAC-PHY interconnect register offset for 82579 hso: Add new product ID can: Add driver for esd CAN-USB/2 device l2tp: fix export of header file for userspace can-raw: Fix skb_orphan_try handling Revert "net: remove zap_completion_queue" net: cleanup inclusion phy/marvell: add 88e1121 interface mode support u32: negative offset fix net: Fix a typo from "dev" to "ndev" igb: Use irq_synchronize per vector when using MSI-X ixgbevf: fix null pointer dereference due to filter being set for VLAN 0 e1000e: Fix irq_synchronize in MSI-X case e1000e: register pm_qos request on hardware activation ip_fragment: fix subtracting PPPOE_SES_HLEN from mtu twice net: Add getsockopt support for TCP thin-streams cxgb4: update driver version cxgb4: add new PCI IDs ... Manually fix up conflicts in: - drivers/net/e1000e/netdev.c: due to pm_qos registration infrastructure changes - drivers/net/phy/marvell.c: conflict between adding 88ec048 support and cleaning up the IDs - drivers/net/wireless/ipw2x00/ipw2100.c: trivial ipw2100_pm_qos_req conflict (registration change vs marking it static)
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/feature-removal-schedule.txt9
-rw-r--r--Documentation/filesystems/nfs/nfsroot.txt2
-rw-r--r--Documentation/isdn/INTERFACE.CAPI8
-rw-r--r--Documentation/isdn/README.gigaset117
-rw-r--r--Documentation/kernel-parameters.txt3
-rw-r--r--Documentation/networking/README.ipw22002
-rw-r--r--Documentation/networking/bonding.txt84
-rw-r--r--Documentation/networking/caif/spi_porting.txt208
-rw-r--r--Documentation/networking/ip-sysctl.txt2
-rw-r--r--Documentation/networking/packet_mmap.txt26
-rw-r--r--Documentation/networking/pktgen.txt5
11 files changed, 401 insertions, 65 deletions
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 9699157c25c..2f1e5b621d0 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -303,15 +303,6 @@ Who: Johannes Berg <johannes@sipsolutions.net>
303 303
304--------------------------- 304---------------------------
305 305
306What: CONFIG_NF_CT_ACCT
307When: 2.6.29
308Why: Accounting can now be enabled/disabled without kernel recompilation.
309 Currently used only to set a default value for a feature that is also
310 controlled by a kernel/module/sysfs/sysctl parameter.
311Who: Krzysztof Piotr Oledzki <ole@ans.pl>
312
313---------------------------
314
315What: sysfs ui for changing p4-clockmod parameters 306What: sysfs ui for changing p4-clockmod parameters
316When: September 2009 307When: September 2009
317Why: See commits 129f8ae9b1b5be94517da76009ea956e89104ce8 and 308Why: See commits 129f8ae9b1b5be94517da76009ea956e89104ce8 and
diff --git a/Documentation/filesystems/nfs/nfsroot.txt b/Documentation/filesystems/nfs/nfsroot.txt
index 3ba0b945aaf..f2430a7974e 100644
--- a/Documentation/filesystems/nfs/nfsroot.txt
+++ b/Documentation/filesystems/nfs/nfsroot.txt
@@ -124,6 +124,8 @@ ip=<client-ip>:<server-ip>:<gw-ip>:<netmask>:<hostname>:<device>:<autoconf>
124 124
125 <hostname> Name of the client. May be supplied by autoconfiguration, 125 <hostname> Name of the client. May be supplied by autoconfiguration,
126 but its absence will not trigger autoconfiguration. 126 but its absence will not trigger autoconfiguration.
127 If specified and DHCP is used, the user provided hostname will
128 be carried in the DHCP request to hopefully update DNS record.
127 129
128 Default: Client IP address is used in ASCII notation. 130 Default: Client IP address is used in ASCII notation.
129 131
diff --git a/Documentation/isdn/INTERFACE.CAPI b/Documentation/isdn/INTERFACE.CAPI
index f172091fb7c..309eb5ed942 100644
--- a/Documentation/isdn/INTERFACE.CAPI
+++ b/Documentation/isdn/INTERFACE.CAPI
@@ -113,12 +113,16 @@ char *driver_name
113int (*load_firmware)(struct capi_ctr *ctrlr, capiloaddata *ldata) 113int (*load_firmware)(struct capi_ctr *ctrlr, capiloaddata *ldata)
114 (optional) pointer to a callback function for sending firmware and 114 (optional) pointer to a callback function for sending firmware and
115 configuration data to the device 115 configuration data to the device
116 The function may return before the operation has completed.
117 Completion must be signalled by a call to capi_ctr_ready().
116 Return value: 0 on success, error code on error 118 Return value: 0 on success, error code on error
117 Called in process context. 119 Called in process context.
118 120
119void (*reset_ctr)(struct capi_ctr *ctrlr) 121void (*reset_ctr)(struct capi_ctr *ctrlr)
120 (optional) pointer to a callback function for performing a reset on 122 (optional) pointer to a callback function for stopping the device,
121 the device, releasing all registered applications 123 releasing all registered applications
124 The function may return before the operation has completed.
125 Completion must be signalled by a call to capi_ctr_down().
122 Called in process context. 126 Called in process context.
123 127
124void (*register_appl)(struct capi_ctr *ctrlr, u16 applid, 128void (*register_appl)(struct capi_ctr *ctrlr, u16 applid,
diff --git a/Documentation/isdn/README.gigaset b/Documentation/isdn/README.gigaset
index e472df84232..ef3343eaa00 100644
--- a/Documentation/isdn/README.gigaset
+++ b/Documentation/isdn/README.gigaset
@@ -47,9 +47,9 @@ GigaSet 307x Device Driver
47 47
481.2. Software 481.2. Software
49 -------- 49 --------
50 The driver works with ISDN4linux and so can be used with any software 50 The driver works with the Kernel CAPI subsystem as well as the old
51 which is able to use ISDN4linux for ISDN connections (voice or data). 51 ISDN4Linux subsystem, so it can be used with any software which is able
52 Experimental Kernel CAPI support is available as a compilation option. 52 to use CAPI 2.0 or ISDN4Linux for ISDN connections (voice or data).
53 53
54 There are some user space tools available at 54 There are some user space tools available at
55 http://sourceforge.net/projects/gigaset307x/ 55 http://sourceforge.net/projects/gigaset307x/
@@ -152,61 +152,42 @@ GigaSet 307x Device Driver
152 - GIGVER_FWBASE: retrieve the firmware version of the base 152 - GIGVER_FWBASE: retrieve the firmware version of the base
153 Upon return, version[] is filled with the requested version information. 153 Upon return, version[] is filled with the requested version information.
154 154
1552.3. ISDN4linux 1552.3. CAPI
156 ----------
157 This is the "normal" mode of operation. After loading the module you can
158 set up the ISDN system just as you'd do with any ISDN card supported by
159 the ISDN4Linux subsystem. Most distributions provide some configuration
160 utility. If not, you can use some HOWTOs like
161 http://www.linuxhaven.de/dlhp/HOWTO/DE-ISDN-HOWTO-5.html
162 If this doesn't work, because you have some device like SX100 where
163 debug output (see section 3.2.) shows something like this when dialing
164 CMD Received: ERROR
165 Available Params: 0
166 Connection State: 0, Response: -1
167 gigaset_process_response: resp_code -1 in ConState 0 !
168 Timeout occurred
169 you probably need to use unimodem mode. (see section 2.5.)
170
1712.4. CAPI
172 ---- 156 ----
173 If the driver is compiled with CAPI support (kernel configuration option 157 If the driver is compiled with CAPI support (kernel configuration option
174 GIGASET_CAPI, experimental) it can also be used with CAPI 2.0 kernel and 158 GIGASET_CAPI) the devices will show up as CAPI controllers as soon as the
175 user space applications. For user space access, the module capi.ko must 159 corresponding driver module is loaded, and can then be used with CAPI 2.0
176 be loaded. The capiinit command (included in the capi4k-utils package) 160 kernel and user space applications. For user space access, the module
177 does this for you. 161 capi.ko must be loaded.
178 162
179 The CAPI variant of the driver supports legacy ISDN4Linux applications 163 Legacy ISDN4Linux applications are supported via the capidrv
180 via the capidrv compatibility driver. The kernel module capidrv.ko must 164 compatibility driver. The kernel module capidrv.ko must be loaded
181 be loaded explicitly with the command 165 explicitly with the command
182 modprobe capidrv 166 modprobe capidrv
183 if needed, and cannot be unloaded again without unloading the driver 167 if needed, and cannot be unloaded again without unloading the driver
184 first. (These are limitations of capidrv.) 168 first. (These are limitations of capidrv.)
185 169
186 The note about unimodem mode in the preceding section applies here, too. 170 Most distributions handle loading and unloading of the various CAPI
187 171 modules automatically via the command capiinit(1) from the capi4k-utils
1882.5. Unimodem mode 172 package or a similar mechanism. Note that capiinit(1) cannot unload the
189 ------------- 173 Gigaset drivers because it doesn't support more than one module per
190 This is needed for some devices [e.g. SX100] as they have problems with 174 driver.
191 the "normal" commands.
192 175
193 If you have installed the command line tool gigacontr, you can enter 1762.4. ISDN4Linux
194 unimodem mode using 177 ----------
195 gigacontr --mode unimodem 178 If the driver is compiled without CAPI support (native ISDN4Linux
196 You can switch back using 179 variant), it registers the device with the legacy ISDN4Linux subsystem
197 gigacontr --mode isdn 180 after loading the module. It can then be used with ISDN4Linux
181 applications only. Most distributions provide some configuration utility
182 for setting up that subsystem. Otherwise you can use some HOWTOs like
183 http://www.linuxhaven.de/dlhp/HOWTO/DE-ISDN-HOWTO-5.html
198 184
199 You can also put the driver directly into Unimodem mode when it's loaded,
200 by passing the module parameter startmode=0 to the hardware specific
201 module, e.g.
202 modprobe usb_gigaset startmode=0
203 or by adding a line like
204 options usb_gigaset startmode=0
205 to an appropriate module configuration file, like /etc/modprobe.d/gigaset
206 or /etc/modprobe.conf.local.
207 185
1862.5. Unimodem mode
187 -------------
208 In this mode the device works like a modem connected to a serial port 188 In this mode the device works like a modem connected to a serial port
209 (the /dev/ttyGU0, ... mentioned above) which understands the commands 189 (the /dev/ttyGU0, ... mentioned above) which understands the commands
190
210 ATZ init, reset 191 ATZ init, reset
211 => OK or ERROR 192 => OK or ERROR
212 ATD 193 ATD
@@ -234,6 +215,31 @@ GigaSet 307x Device Driver
234 to an appropriate module configuration file, like /etc/modprobe.d/gigaset 215 to an appropriate module configuration file, like /etc/modprobe.d/gigaset
235 or /etc/modprobe.conf.local. 216 or /etc/modprobe.conf.local.
236 217
218 Unimodem mode is needed for making some devices [e.g. SX100] work which
219 do not support the regular Gigaset command set. If debug output (see
220 section 3.2.) shows something like this when dialing:
221 CMD Received: ERROR
222 Available Params: 0
223 Connection State: 0, Response: -1
224 gigaset_process_response: resp_code -1 in ConState 0 !
225 Timeout occurred
226 then switching to unimodem mode may help.
227
228 If you have installed the command line tool gigacontr, you can enter
229 unimodem mode using
230 gigacontr --mode unimodem
231 You can switch back using
232 gigacontr --mode isdn
233
234 You can also put the driver directly into Unimodem mode when it's loaded,
235 by passing the module parameter startmode=0 to the hardware specific
236 module, e.g.
237 modprobe usb_gigaset startmode=0
238 or by adding a line like
239 options usb_gigaset startmode=0
240 to an appropriate module configuration file, like /etc/modprobe.d/gigaset
241 or /etc/modprobe.conf.local.
242
2372.6. Call-ID (CID) mode 2432.6. Call-ID (CID) mode
238 ------------------ 244 ------------------
239 Call-IDs are numbers used to tag commands to, and responses from, the 245 Call-IDs are numbers used to tag commands to, and responses from, the
@@ -263,7 +269,22 @@ GigaSet 307x Device Driver
263 change its CID mode while the driver is loaded, eg. 269 change its CID mode while the driver is loaded, eg.
264 echo 0 > /sys/class/tty/ttyGU0/cidmode 270 echo 0 > /sys/class/tty/ttyGU0/cidmode
265 271
2662.7. Unregistered Wireless Devices (M101/M105) 2722.7. Dialing Numbers
273 ---------------
274 The called party number provided by an application for dialing out must
275 be a public network number according to the local dialing plan, without
276 any dial prefix for getting an outside line.
277
278 Internal calls can be made by providing an internal extension number
279 prefixed with "**" (two asterisks) as the called party number. So to dial
280 eg. the first registered DECT handset, give "**11" as the called party
281 number. Dialing "***" (three asterisks) calls all extensions
282 simultaneously (global call).
283
284 This holds for both CAPI 2.0 and ISDN4Linux applications. Unimodem mode
285 does not support internal calls.
286
2872.8. Unregistered Wireless Devices (M101/M105)
267 ----------------------------------------- 288 -----------------------------------------
268 The main purpose of the ser_gigaset and usb_gigaset drivers is to allow 289 The main purpose of the ser_gigaset and usb_gigaset drivers is to allow
269 the M101 and M105 wireless devices to be used as ISDN devices for ISDN 290 the M101 and M105 wireless devices to be used as ISDN devices for ISDN
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index b61f89fa01c..d9239d5f3ad 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1598,8 +1598,7 @@ and is between 256 and 4096 characters. It is defined in the file
1598 [NETFILTER] Enable connection tracking flow accounting 1598 [NETFILTER] Enable connection tracking flow accounting
1599 0 to disable accounting 1599 0 to disable accounting
1600 1 to enable accounting 1600 1 to enable accounting
1601 Default value depends on CONFIG_NF_CT_ACCT that is 1601 Default value is 0.
1602 going to be removed in 2.6.29.
1603 1602
1604 nfsaddrs= [NFS] 1603 nfsaddrs= [NFS]
1605 See Documentation/filesystems/nfs/nfsroot.txt. 1604 See Documentation/filesystems/nfs/nfsroot.txt.
diff --git a/Documentation/networking/README.ipw2200 b/Documentation/networking/README.ipw2200
index 80c728522c4..e4d3267071e 100644
--- a/Documentation/networking/README.ipw2200
+++ b/Documentation/networking/README.ipw2200
@@ -171,7 +171,7 @@ Where the supported parameter are:
171 171
172 led 172 led
173 Can be used to turn on experimental LED code. 173 Can be used to turn on experimental LED code.
174 0 = Off, 1 = On. Default is 0. 174 0 = Off, 1 = On. Default is 1.
175 175
176 mode 176 mode
177 Can be used to set the default mode of the adapter. 177 Can be used to set the default mode of the adapter.
diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt
index 61f516b135b..d0914781830 100644
--- a/Documentation/networking/bonding.txt
+++ b/Documentation/networking/bonding.txt
@@ -49,6 +49,7 @@ Table of Contents
493.3 Configuring Bonding Manually with Ifenslave 493.3 Configuring Bonding Manually with Ifenslave
503.3.1 Configuring Multiple Bonds Manually 503.3.1 Configuring Multiple Bonds Manually
513.4 Configuring Bonding Manually via Sysfs 513.4 Configuring Bonding Manually via Sysfs
523.5 Overriding Configuration for Special Cases
52 53
534. Querying Bonding Configuration 544. Querying Bonding Configuration
544.1 Bonding Configuration 554.1 Bonding Configuration
@@ -1318,8 +1319,87 @@ echo 2000 > /sys/class/net/bond1/bonding/arp_interval
1318echo +eth2 > /sys/class/net/bond1/bonding/slaves 1319echo +eth2 > /sys/class/net/bond1/bonding/slaves
1319echo +eth3 > /sys/class/net/bond1/bonding/slaves 1320echo +eth3 > /sys/class/net/bond1/bonding/slaves
1320 1321
1321 13223.5 Overriding Configuration for Special Cases
13224. Querying Bonding Configuration 1323----------------------------------------------
1324When using the bonding driver, the physical port which transmits a frame is
1325typically selected by the bonding driver, and is not relevant to the user or
1326system administrator. The output port is simply selected using the policies of
1327the selected bonding mode. On occasion however, it is helpful to direct certain
1328classes of traffic to certain physical interfaces on output to implement
1329slightly more complex policies. For example, to reach a web server over a
1330bonded interface in which eth0 connects to a private network, while eth1
1331connects via a public network, it may be desirous to bias the bond to send said
1332traffic over eth0 first, using eth1 only as a fall back, while all other traffic
1333can safely be sent over either interface. Such configurations may be achieved
1334using the traffic control utilities inherent in linux.
1335
1336By default the bonding driver is multiqueue aware and 16 queues are created
1337when the driver initializes (see Documentation/networking/multiqueue.txt
1338for details). If more or less queues are desired the module parameter
1339tx_queues can be used to change this value. There is no sysfs parameter
1340available as the allocation is done at module init time.
1341
1342The output of the file /proc/net/bonding/bondX has changed so the output Queue
1343ID is now printed for each slave:
1344
1345Bonding Mode: fault-tolerance (active-backup)
1346Primary Slave: None
1347Currently Active Slave: eth0
1348MII Status: up
1349MII Polling Interval (ms): 0
1350Up Delay (ms): 0
1351Down Delay (ms): 0
1352
1353Slave Interface: eth0
1354MII Status: up
1355Link Failure Count: 0
1356Permanent HW addr: 00:1a:a0:12:8f:cb
1357Slave queue ID: 0
1358
1359Slave Interface: eth1
1360MII Status: up
1361Link Failure Count: 0
1362Permanent HW addr: 00:1a:a0:12:8f:cc
1363Slave queue ID: 2
1364
1365The queue_id for a slave can be set using the command:
1366
1367# echo "eth1:2" > /sys/class/net/bond0/bonding/queue_id
1368
1369Any interface that needs a queue_id set should set it with multiple calls
1370like the one above until proper priorities are set for all interfaces. On
1371distributions that allow configuration via initscripts, multiple 'queue_id'
1372arguments can be added to BONDING_OPTS to set all needed slave queues.
1373
1374These queue id's can be used in conjunction with the tc utility to configure
1375a multiqueue qdisc and filters to bias certain traffic to transmit on certain
1376slave devices. For instance, say we wanted, in the above configuration to
1377force all traffic bound to 192.168.1.100 to use eth1 in the bond as its output
1378device. The following commands would accomplish this:
1379
1380# tc qdisc add dev bond0 handle 1 root multiq
1381
1382# tc filter add dev bond0 protocol ip parent 1: prio 1 u32 match ip dst \
1383 192.168.1.100 action skbedit queue_mapping 2
1384
1385These commands tell the kernel to attach a multiqueue queue discipline to the
1386bond0 interface and filter traffic enqueued to it, such that packets with a dst
1387ip of 192.168.1.100 have their output queue mapping value overwritten to 2.
1388This value is then passed into the driver, causing the normal output path
1389selection policy to be overridden, selecting instead qid 2, which maps to eth1.
1390
1391Note that qid values begin at 1. Qid 0 is reserved to initiate to the driver
1392that normal output policy selection should take place. One benefit to simply
1393leaving the qid for a slave to 0 is the multiqueue awareness in the bonding
1394driver that is now present. This awareness allows tc filters to be placed on
1395slave devices as well as bond devices and the bonding driver will simply act as
1396a pass-through for selecting output queues on the slave device rather than
1397output port selection.
1398
1399This feature first appeared in bonding driver version 3.7.0 and support for
1400output slave selection was limited to round-robin and active-backup modes.
1401
14024 Querying Bonding Configuration
1323================================= 1403=================================
1324 1404
13254.1 Bonding Configuration 14054.1 Bonding Configuration
diff --git a/Documentation/networking/caif/spi_porting.txt b/Documentation/networking/caif/spi_porting.txt
new file mode 100644
index 00000000000..61d7c924745
--- /dev/null
+++ b/Documentation/networking/caif/spi_porting.txt
@@ -0,0 +1,208 @@
1- CAIF SPI porting -
2
3- CAIF SPI basics:
4
5Running CAIF over SPI needs some extra setup, owing to the nature of SPI.
6Two extra GPIOs have been added in order to negotiate the transfers
7 between the master and the slave. The minimum requirement for running
8CAIF over SPI is a SPI slave chip and two GPIOs (more details below).
9Please note that running as a slave implies that you need to keep up
10with the master clock. An overrun or underrun event is fatal.
11
12- CAIF SPI framework:
13
14To make porting as easy as possible, the CAIF SPI has been divided in
15two parts. The first part (called the interface part) deals with all
16generic functionality such as length framing, SPI frame negotiation
17and SPI frame delivery and transmission. The other part is the CAIF
18SPI slave device part, which is the module that you have to write if
19you want to run SPI CAIF on a new hardware. This part takes care of
20the physical hardware, both with regard to SPI and to GPIOs.
21
22- Implementing a CAIF SPI device:
23
24 - Functionality provided by the CAIF SPI slave device:
25
26 In order to implement a SPI device you will, as a minimum,
27 need to implement the following
28 functions:
29
30 int (*init_xfer) (struct cfspi_xfer * xfer, struct cfspi_dev *dev):
31
32 This function is called by the CAIF SPI interface to give
33 you a chance to set up your hardware to be ready to receive
34 a stream of data from the master. The xfer structure contains
35 both physical and logical adresses, as well as the total length
36 of the transfer in both directions.The dev parameter can be used
37 to map to different CAIF SPI slave devices.
38
39 void (*sig_xfer) (bool xfer, struct cfspi_dev *dev):
40
41 This function is called by the CAIF SPI interface when the output
42 (SPI_INT) GPIO needs to change state. The boolean value of the xfer
43 variable indicates whether the GPIO should be asserted (HIGH) or
44 deasserted (LOW). The dev parameter can be used to map to different CAIF
45 SPI slave devices.
46
47 - Functionality provided by the CAIF SPI interface:
48
49 void (*ss_cb) (bool assert, struct cfspi_ifc *ifc);
50
51 This function is called by the CAIF SPI slave device in order to
52 signal a change of state of the input GPIO (SS) to the interface.
53 Only active edges are mandatory to be reported.
54 This function can be called from IRQ context (recommended in order
55 not to introduce latency). The ifc parameter should be the pointer
56 returned from the platform probe function in the SPI device structure.
57
58 void (*xfer_done_cb) (struct cfspi_ifc *ifc);
59
60 This function is called by the CAIF SPI slave device in order to
61 report that a transfer is completed. This function should only be
62 called once both the transmission and the reception are completed.
63 This function can be called from IRQ context (recommended in order
64 not to introduce latency). The ifc parameter should be the pointer
65 returned from the platform probe function in the SPI device structure.
66
67 - Connecting the bits and pieces:
68
69 - Filling in the SPI slave device structure:
70
71 Connect the necessary callback functions.
72 Indicate clock speed (used to calculate toggle delays).
73 Chose a suitable name (helps debugging if you use several CAIF
74 SPI slave devices).
75 Assign your private data (can be used to map to your structure).
76
77 - Filling in the SPI slave platform device structure:
78 Add name of driver to connect to ("cfspi_sspi").
79 Assign the SPI slave device structure as platform data.
80
81- Padding:
82
83In order to optimize throughput, a number of SPI padding options are provided.
84Padding can be enabled independently for uplink and downlink transfers.
85Padding can be enabled for the head, the tail and for the total frame size.
86The padding needs to be correctly configured on both sides of the link.
87The padding can be changed via module parameters in cfspi_sspi.c or via
88the sysfs directory of the cfspi_sspi driver (before device registration).
89
90- CAIF SPI device template:
91
92/*
93 * Copyright (C) ST-Ericsson AB 2010
94 * Author: Daniel Martensson / Daniel.Martensson@stericsson.com
95 * License terms: GNU General Public License (GPL), version 2.
96 *
97 */
98
99#include <linux/init.h>
100#include <linux/module.h>
101#include <linux/device.h>
102#include <linux/wait.h>
103#include <linux/interrupt.h>
104#include <linux/dma-mapping.h>
105#include <net/caif/caif_spi.h>
106
107MODULE_LICENSE("GPL");
108
109struct sspi_struct {
110 struct cfspi_dev sdev;
111 struct cfspi_xfer *xfer;
112};
113
114static struct sspi_struct slave;
115static struct platform_device slave_device;
116
117static irqreturn_t sspi_irq(int irq, void *arg)
118{
119 /* You only need to trigger on an edge to the active state of the
120 * SS signal. Once a edge is detected, the ss_cb() function should be
121 * called with the parameter assert set to true. It is OK
122 * (and even advised) to call the ss_cb() function in IRQ context in
123 * order not to add any delay. */
124
125 return IRQ_HANDLED;
126}
127
128static void sspi_complete(void *context)
129{
130 /* Normally the DMA or the SPI framework will call you back
131 * in something similar to this. The only thing you need to
132 * do is to call the xfer_done_cb() function, providing the pointer
133 * to the CAIF SPI interface. It is OK to call this function
134 * from IRQ context. */
135}
136
137static int sspi_init_xfer(struct cfspi_xfer *xfer, struct cfspi_dev *dev)
138{
139 /* Store transfer info. For a normal implementation you should
140 * set up your DMA here and make sure that you are ready to
141 * receive the data from the master SPI. */
142
143 struct sspi_struct *sspi = (struct sspi_struct *)dev->priv;
144
145 sspi->xfer = xfer;
146
147 return 0;
148}
149
150void sspi_sig_xfer(bool xfer, struct cfspi_dev *dev)
151{
152 /* If xfer is true then you should assert the SPI_INT to indicate to
153 * the master that you are ready to recieve the data from the master
154 * SPI. If xfer is false then you should de-assert SPI_INT to indicate
155 * that the transfer is done.
156 */
157
158 struct sspi_struct *sspi = (struct sspi_struct *)dev->priv;
159}
160
161static void sspi_release(struct device *dev)
162{
163 /*
164 * Here you should release your SPI device resources.
165 */
166}
167
168static int __init sspi_init(void)
169{
170 /* Here you should initialize your SPI device by providing the
171 * necessary functions, clock speed, name and private data. Once
172 * done, you can register your device with the
173 * platform_device_register() function. This function will return
174 * with the CAIF SPI interface initialized. This is probably also
175 * the place where you should set up your GPIOs, interrupts and SPI
176 * resources. */
177
178 int res = 0;
179
180 /* Initialize slave device. */
181 slave.sdev.init_xfer = sspi_init_xfer;
182 slave.sdev.sig_xfer = sspi_sig_xfer;
183 slave.sdev.clk_mhz = 13;
184 slave.sdev.priv = &slave;
185 slave.sdev.name = "spi_sspi";
186 slave_device.dev.release = sspi_release;
187
188 /* Initialize platform device. */
189 slave_device.name = "cfspi_sspi";
190 slave_device.dev.platform_data = &slave.sdev;
191
192 /* Register platform device. */
193 res = platform_device_register(&slave_device);
194 if (res) {
195 printk(KERN_WARNING "sspi_init: failed to register dev.\n");
196 return -ENODEV;
197 }
198
199 return res;
200}
201
202static void __exit sspi_exit(void)
203{
204 platform_device_del(&slave_device);
205}
206
207module_init(sspi_init);
208module_exit(sspi_exit);
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index d0536b5a4e0..f350c69b2bb 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -903,7 +903,7 @@ arp_ignore - INTEGER
903arp_notify - BOOLEAN 903arp_notify - BOOLEAN
904 Define mode for notification of address and device changes. 904 Define mode for notification of address and device changes.
905 0 - (default): do nothing 905 0 - (default): do nothing
906 1 - Generate gratuitous arp replies when device is brought up 906 1 - Generate gratuitous arp requests when device is brought up
907 or hardware address changes. 907 or hardware address changes.
908 908
909arp_accept - BOOLEAN 909arp_accept - BOOLEAN
diff --git a/Documentation/networking/packet_mmap.txt b/Documentation/networking/packet_mmap.txt
index 98f71a5cef0..2546aa4dc23 100644
--- a/Documentation/networking/packet_mmap.txt
+++ b/Documentation/networking/packet_mmap.txt
@@ -493,6 +493,32 @@ The user can also use poll() to check if a buffer is available:
493 pfd.events = POLLOUT; 493 pfd.events = POLLOUT;
494 retval = poll(&pfd, 1, timeout); 494 retval = poll(&pfd, 1, timeout);
495 495
496-------------------------------------------------------------------------------
497+ PACKET_TIMESTAMP
498-------------------------------------------------------------------------------
499
500The PACKET_TIMESTAMP setting determines the source of the timestamp in
501the packet meta information. If your NIC is capable of timestamping
502packets in hardware, you can request those hardware timestamps to used.
503Note: you may need to enable the generation of hardware timestamps with
504SIOCSHWTSTAMP.
505
506PACKET_TIMESTAMP accepts the same integer bit field as
507SO_TIMESTAMPING. However, only the SOF_TIMESTAMPING_SYS_HARDWARE
508and SOF_TIMESTAMPING_RAW_HARDWARE values are recognized by
509PACKET_TIMESTAMP. SOF_TIMESTAMPING_SYS_HARDWARE takes precedence over
510SOF_TIMESTAMPING_RAW_HARDWARE if both bits are set.
511
512 int req = 0;
513 req |= SOF_TIMESTAMPING_SYS_HARDWARE;
514 setsockopt(fd, SOL_PACKET, PACKET_TIMESTAMP, (void *) &req, sizeof(req))
515
516If PACKET_TIMESTAMP is not set, a software timestamp generated inside
517the networking stack is used (the behavior before this setting was added).
518
519See include/linux/net_tstamp.h and Documentation/networking/timestamping
520for more information on hardware timestamps.
521
496-------------------------------------------------------------------------------- 522--------------------------------------------------------------------------------
497+ THANKS 523+ THANKS
498-------------------------------------------------------------------------------- 524--------------------------------------------------------------------------------
diff --git a/Documentation/networking/pktgen.txt b/Documentation/networking/pktgen.txt
index 61bb645d50e..75e4fd708cc 100644
--- a/Documentation/networking/pktgen.txt
+++ b/Documentation/networking/pktgen.txt
@@ -151,6 +151,8 @@ Examples:
151 151
152 pgset stop aborts injection. Also, ^C aborts generator. 152 pgset stop aborts injection. Also, ^C aborts generator.
153 153
154 pgset "rate 300M" set rate to 300 Mb/s
155 pgset "ratep 1000000" set rate to 1Mpps
154 156
155Example scripts 157Example scripts
156=============== 158===============
@@ -241,6 +243,9 @@ src6
241flows 243flows
242flowlen 244flowlen
243 245
246rate
247ratep
248
244References: 249References:
245ftp://robur.slu.se/pub/Linux/net-development/pktgen-testing/ 250ftp://robur.slu.se/pub/Linux/net-development/pktgen-testing/
246ftp://robur.slu.se/pub/Linux/net-development/pktgen-testing/examples/ 251ftp://robur.slu.se/pub/Linux/net-development/pktgen-testing/examples/