- 01 8月, 2011 40 次提交
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由 Samuel Jero 提交于
This patch causes CCID-2 to check the Ack Ratio after reducing the congestion window. If the Ack Ratio is greater than the congestion window, it is reduced. This prevents timeouts caused by an Ack Ratio larger than the congestion window. In this situation, we choose to set the Ack Ratio to half the congestion window (or one if that's zero) so that if we loose one ack we don't trigger a timeout. Signed-off-by: Samuel Jero <sj323707@ohio.edu> Acked-by: NGerrit Renker <gerrit@erg.abdn.ac.uk>
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由 Samuel Jero 提交于
This patch fixes an issue where CCID-2 will not increase the congestion window for numerous RTTs after an idle period, application-limited period, or a loss once the algorithm is in Congestion Avoidance. What happens is that, when CCID-2 is in Congestion Avoidance mode, it will increase hc->tx_packets_acked by one for every packet and will increment cwnd every cwnd packets. However, if there is now an idle period in the connection, cwnd will be reduced, possibly below the slow start threshold. This will cause the connection to go into Slow Start. However, in Slow Start CCID-2 performs this test to increment cwnd every second ack: ++hc->tx_packets_acked == 2 Unfortunately, this will be incorrect, if cwnd previous to the idle period was larger than 2 and if tx_packets_acked was close to cwnd. For example: cwnd=50 and tx_packets_acked=45. In this case, the current code, will increment tx_packets_acked until it equals two, which will only be once tx_packets_acked (an unsigned 32-bit integer) overflows. My fix is simply to change that test for tx_packets_acked greater than or equal to two in slow start. Signed-off-by: NSamuel Jero <sj323707@ohio.edu> Acked-by: NGerrit Renker <gerrit@erg.abdn.ac.uk>
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由 Samuel Jero 提交于
Add a check to prevent CCID-2 from increasing the cwnd greater than the Sequence Window. When the congestion window becomes bigger than the Sequence Window, CCID-2 will attempt to keep more data in the network than the DCCP Sequence Window code considers possible. This results in the Sequence Window code issuing a Sync, thereby inducing needless overhead. Further, if this occurs at the sender, CCID-2 will never detect the problem because the Acks it receives will indicate no losses. I have seen this cause a drop of 1/3rd in throughput for a connection. Also add code to adjust the Sequence Window to be about 5 times the number of packets in the network (RFC 4340, 7.5.2) and to adjust the Ack Ratio so that the remote Sequence Window will hold about 5 times the number of packets in the network. This allows the congestion window to increase correctly without being limited by the Sequence Window. Signed-off-by: NSamuel Jero <sj323707@ohio.edu> Acked-by: NGerrit Renker <gerrit@erg.abdn.ac.uk>
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由 Gerrit Renker 提交于
This uses the new feature-negotiation framework to signal Ack Ratio changes, as required by RFC 4341, sec. 6.1.2. That raises some problems with CCID-2, which at the moment can not cope gracefully with Ack Ratios > 1. Since these issues are not directly related to feature negotiation, they are marked by a FIXME. Signed-off-by: NGerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: NSamuel Jero <sj323707@ohio.edu> Acked-by: NIan McDonald <ian.mcdonald@jandi.co.uk>
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由 Samuel Jero 提交于
If a connection is in the OPEN state, remove feature negotiation Confirm options from the list of options after sending them once; as such options are NOT supposed to be retransmitted and are ONLY supposed to be sent in response to a Change option (RFC 4340 6.2). Signed-off-by: NSamuel Jero <sj323707@ohio.edu> Acked-by: NGerrit Renker <gerrit@erg.abdn.ac.uk>
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由 Gerrit Renker 提交于
This patch adds the receiver side and the (fast-path) activation part for dynamic changes of non-negotiable (NN) parameters in (PART)OPEN state. Signed-off-by: NGerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: NSamuel Jero <sj323707@ohio.edu> Acked-by: NIan McDonald <ian.mcdonald@jandi.co.uk>
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由 Gerrit Renker 提交于
In contrast to static feature negotiation at the begin of a connection, this patch introduces support for exchange of dynamically changing options. Such an update/exchange is necessary in at least two cases: * CCID-2's Ack Ratio (RFC 4341, 6.1.2) which changes during the connection; * Sequence Window values that, as per RFC 4340, 7.5.2, should be sent "as the connection progresses". Both are non-negotiable (NN) features, which means that no new capabilities are negotiated, but rather that changes in known parameters are brought up-to-date at either end. Thse characteristics are reflected by the implementation: * only NN options can be exchanged after connection setup; * an ack is scheduled directly after activation to speed up the update; * CCIDs may request changes to an NN feature even if a negotiation for that feature is already underway: this is required by CCID-2, where changes in cwnd necessitate Ack Ratio changes, such that the previous Ack Ratio (which is still being negotiated) would cause irrecoverable RTO timeouts (thanks to work by Samuel Jero). Signed-off-by: NGerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: NSamuel Jero <sj323707@ohio.edu> Acked-by: NIan McDonald <ian.mcdonald@jandi.co.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6由 Linus Torvalds 提交于
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (46 commits) mfd: Fix mismatch in twl4030 mutex lock-unlock mfd: twl6030-pwm.c needs MODULE_LICENSE mfd: Fix the omap-usb-host clock API usage on usbhs_disable() mfd: Acknowledge WM8994 IRQs before reporting mfd: Acknowlege all WM831x IRQs before we handle them mfd: Avoid two assignments if failures happen in tps65910_i2c_probe regulator: Storing tps65912 error codes in u8 mfd: Don't leak init_data in tps65910_i2c_probe regulator: aat2870: Add AAT2870 regulator driver backlight: Add AAT2870 backlight driver mfd: Add AAT2870 mfd driver mfd: Remove dead code from max8997-irq mfd: Move TPS55910 Kconfig option mfd: Fix missing stmpe kerneldoc mfd: Fix off-by-one value range checking for tps65912_i2c_write mfd: Add devices for WM831x clocking module mfd: Remove comp{1,2}_threshold sysfs entries in tps65911_comparator_remove mfd: Don't ask about the TPS65912 core driver in Kconfig mfd: Fix off by one in WM831x IRQ code mfd: Add tps65921 support from twl-core ...
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k/math-emu: Remove unnecessary code m68k/math-emu: Remove commented out old code m68k: Kill warning in setup_arch() when compiling for Sun3 m68k/atari: Prefix GPIO_{IN,OUT} with CODEC_ sparc: iounmap() and *_free_coherent() - Use lookup_resource() m68k/atari: Reserve some ST-RAM early on for device buffer use m68k/amiga: Chip RAM - Use lookup_resource() resources: Add lookup_resource() sparc: _sparc_find_resource() should check for exact matches m68k/amiga: Chip RAM - Offset resource end by CHIP_PHYSADDR m68k/amiga: Chip RAM - Use resource_size() to fix off-by-one error m68k/amiga: Chip RAM - Change chipavail to an atomic_t m68k/amiga: Chip RAM - Always allocate from the start of memory m68k/amiga: Chip RAM - Convert from printk() to pr_*() m68k/amiga: Chip RAM - Use tabs for indentation
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由 Trond Myklebust 提交于
Fix two recently introduced compile problems: Fix a typo in fs/nfs/pnfs.h Move the pnfs_blksize declaration outside the CONFIG_NFS_V4 section in struct nfs_server. Reported-by: NJens Axboe <jaxboe@fusionio.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Sanjeev Premi 提交于
A mutex is locked on entry into twl4030_madc_conversion(). Immediate return on some error conditions leaves the mutex locked. This patch ensures that mutex is always unlocked before leaving the function. Signed-off-by: NSanjeev Premi <premi@ti.com> Cc: Keerthy <j-keerthy@ti.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Randy Dunlap 提交于
twl6030_pwm: module license 'unspecified' taints kernel. Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net> Acked-by: NHemanth V <hemanthv@ti.com> Acked-by: NFelipe Balbi <balbi@ti.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Keshava Munegowda 提交于
usbhs_disable function was invoking clk_enable() instead of clk_disable(), thus only increasing the clock usage counter and preventing this particular clock from being ever turned off. Because of this, the power domain of omap4 the USB Host subsystem would never reach lower power states.This patch calls clk_disable() in usbhs_disable function Signed-off-by: NKeshava Munegowda <keshava_mgowda@ti.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Mark Brown 提交于
This ensures we never have a window where we've handled an interrupt but not told the hardware about it. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Mark Brown 提交于
Ensure that we never have a window where we've handled an interrupt (and therefore need to be notified of new events) but haven't yet told the interrupt controller that this is the case (so any new events will be discarded). Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Jesper Juhl 提交于
In drivers/mfd/tps65910.c:tps65910_i2c_probe() there's potential for a tiny optimization. We assign to init_data->irq and init_data->irq_base long before we need them, and there are two potential exits from the function before they are needed. Moving the assignments below these two potential exits means we completely avoid doing them in these two (failure) cases. Signed-off-by: NJesper Juhl <jj@chaosbits.net> Acked-by: NGraeme Gregory <gg@slimlogic.co.uk> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Dan Carpenter 提交于
get_ctrl_reg() returns -EINVAL so the error handling won't work here if reg is a u8. Signed-off-by: NDan Carpenter <error27@gmail.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Jesper Juhl 提交于
There are a couple of situations where we leak init_data in drivers/mfd/tps65910.c:tps65910_i2c_probe() - this patch should take care of them. Signed-off-by: NJesper Juhl <jj@chaosbits.net> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Jin Park 提交于
Add regulator driver for AnalogicTech AAT2870. Signed-off-by: NJin Park <jinyoungp@nvidia.com> Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Jin Park 提交于
Add backlight driver for AnalogicTech AAT2870. Signed-off-by: NJin Park <jinyoungp@nvidia.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Jin Park 提交于
Add mfd core driver for AnalogicTech AAT2870. The AAT2870 is communication through I2C and contains backlight and regulator components. Signed-off-by: NJin Park <jinyoungp@nvidia.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Jesper Juhl 提交于
We either hit one of the case's or the default in the switch statement in get_i2c(), so the 'return ERR_PTR(-EINVAL);' at the end of the function is just dead code - remove it. Signed-off-by: NJesper Juhl <jj@chaosbits.net> Acked-by: NMyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Linus Walleij 提交于
Having another TPS chip at the end of the Kconfig when all it's relatives are grouped together in their own section seems totally counter-intuitive. Move it, also in the Makefile. Signed-off-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Om Prakash 提交于
Generating kerneldoc for STMPE result in warnings, so fix this by adding missing documentation. Signed-off-by: NOm Prakash <omprakash.pal@stericsson.com> Reviewed-by: NRabin Vincent <rabin.vincent@stericsson.com> Reviewed-by: NJonas Aberg <jonas.aberg@stericsson.com> Reviewed-by: NSrinidhi Kasagar <srinidhi.kasagar@stericsson.com> Signed-off-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Axel Lin 提交于
If bytes == (TPS6591X_MAX_REGISTER + 1), we have a buffer overflow when doing memcpy(&msg[1], src, bytes). Signed-off-by: NAxel Lin <axel.lin@gmail.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Mark Brown 提交于
With the new generic clk API that should appear at some point we should be able to support the clocking sensibly in Linux. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Axel Lin 提交于
Signed-off-by: NAxel Lin <axel.lin@gmail.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Mark Brown 提交于
The user has to select the I2C and SPI drivers individually and they select the core driver for the device so there's no point in presenting the user with an option for the core driver. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Dimitris Papastamos 提交于
The GPIO IRQs aren't the first IRQs defined, we need to subtract the base for the GPIOs as well to use them for array indexes. Signed-off-by: NDimitris Papastamos <dp@opensource.wolfsonmicro.com> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Oleg Drokin 提交于
Very similar to TPS65920 List of differences: http://www.ti.com/litv/pdf/swcu066bSigned-off-by: NOleg Drokin <green@linuxhacker.ru> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Mark Brown 提交于
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Mark Brown 提交于
Purely for defensiveness. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Mark Brown 提交于
The tps65910_irq_exit() cleanup function was generating a warning from sparse due to the lack of a prototype. This wasn't causing GCC warnings as the driver wasn't cleaning up its IRQs on exit at all so there was no use of an unprototyped function. Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Alexander Stein 提交于
Tunnel Creek has an additional watchdog core. Signed-off-by: NAlexander Stein <alexander.stein@systec-electronic.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Linus Walleij 提交于
This adds a previously undefined test register and removed a number of double-defined accessory detect registers (they are already defined higher up in the file. Signed-off-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Linus Walleij 提交于
This synchronize the subdevice entries for the AB8500 MFD driver with the latest development of subdrivers for things like battery charging and temperature monitoring. Signed-off-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Robert Rosengren 提交于
Internal MFD device structs are marked as __devinitdata since the kernel will allocate memory for the same when calling mfd_add_devices. Signed-off-by: NRobert Rosengren <robert.rosengren@stericsson.com> Reviewed-by: NMattias Wallin <mattias.wallin@stericsson.com> Reviewed-by: NJohan Palsson <johan.palsson@stericsson.com> Signed-off-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Margarita Olaya 提交于
The tps65912 consist of 4 DCDCs and 10 LDOs. The output voltages can be configured by the SPI or I2C interface, they are meant to supply power to the main processor and other components. Signed-off-by: NMargarita Olaya Cabrera <magi@slimlogic.co.uk> Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: NLiam Girdwood <lrg@ti.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Margarita Olaya 提交于
TPS65912 has five GPIOs that can be configured for different purposes. Signed-off-by: NMargarita Olaya Cabrera <magi@slimlogic.co.uk> Acked-by: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NLiam Girdwood <lrg@ti.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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由 Margarita Olaya 提交于
This module controls the interrupt handling for the tps65912. The interrupt sources can be the following: - GPIO - PWRON signal - PWRHOLD signal - Temperature detection Signed-off-by: NMargarita Olaya Cabrera <magi@slimlogic.co.uk> Acked-by: NSamuel Ortiz <sameo@linux.intel.com> Acked-by: NLiam Girdwood <lrg@ti.com> Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>
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