- 10 Nov, 2016 26 commits
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Lubomir Rintel authored
This implements only the very basic protocol "Mode A", just to make the device functional. Patches to implement "Mode C" that uses better bulking and is interrupt-driver may follow. The device essentially speaks the same protocol as USB CCID devices do over the bulk endpoints. The driver exchanges the command submissions and responses over a plain read()/write() interface, compatible with legacy OpenCT's pcmcia_block driver. Patches for the newer CCID driver are available: https://github.com/lkundrak/CCID/tree/lr/pcmcia_blockSigned-off-by: Lubomir Rintel <lkundrak@v3.sk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alan Tull authored
Add low level driver to support reprogramming FPGAs for Altera SoCFPGA Arria10. Signed-off-by: Alan Tull <atull@opensource.altera.com> Reviewed-by: Moritz Fischer <moritz.fischer@ettus.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alan Tull authored
Add a low level driver for Altera Freeze Bridges to the FPGA Bridge framework. A freeze bridge is a bridge that exists in the FPGA fabric to isolate one region of the FPGA from the busses while that one region is being reprogrammed. Signed-off-by: Alan Tull <atull@opensource.altera.com> Signed-off-by: Matthew Gerlach <mgerlach@opensource.altera.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alan Tull authored
Supports Altera SOCFPGA bridges: * fpga2sdram * fpga2hps * hps2fpga * lwhps2fpga Allows enabling/disabling the bridges through the FPGA Bridge Framework API functions. The fpga2sdram driver only supports enabling and disabling of the ports that been configured early on. This is due to a hardware limitation where the read, write, and command ports on the fpga2sdram bridge can only be reconfigured while there are no transactions to the sdram, i.e. when running out of OCRAM before the kernel boots. Device tree property 'init-val' configures the driver to enable or disable the bridge during probe. If the property does not exist, the driver will leave the bridge in its current state. Signed-off-by: Alan Tull <atull@opensource.altera.com> Signed-off-by: Matthew Gerlach <mgerlach@altera.com> Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alan Tull authored
FPGA Regions support programming FPGA under control of the Device Tree. Signed-off-by: Alan Tull <atull@opensource.altera.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alan Tull authored
This framework adds API functions for enabling/ disabling FPGA bridges under kernel control. This allows the Linux kernel to disable FPGA bridges during FPGA reprogramming and to enable FPGA bridges when FPGA reprogramming is done. This framework is be manufacturer-agnostic, allowing it to be used in interfaces that use the FPGA Manager Framework to reprogram FPGA's. The functions are: * of_fpga_bridge_get * fpga_bridge_put Get/put an exclusive reference to a FPGA bridge. * fpga_bridge_enable * fpga_bridge_disable Enable/Disable traffic through a bridge. * fpga_bridge_register * fpga_bridge_unregister Register/unregister a device-specific low level FPGA Bridge driver. Get an exclusive reference to a bridge and add it to a list: * fpga_bridge_get_to_list To enable/disable/put a set of bridges that are on a list: * fpga_bridges_enable * fpga_bridges_disable * fpga_bridges_put Signed-off-by: Alan Tull <atull@opensource.altera.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alan Tull authored
Add documentation for new FPGA bridge class's sysfs interface. Signed-off-by: Alan Tull <atull@opensource.altera.com> Acked-by: Moritz Fischer <moritz.fischer@ettus.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alan Tull authored
This patch adds a minor change in the FPGA Manager API to hold information that is specific to an FPGA image file. This change is expected to bring little, if any, pain. The socfpga and zynq drivers are fixed up in this patch. An FPGA image file will have particulars that affect how the image is programmed to the FPGA. One example is that current 'flags' currently has one bit which shows whether the FPGA image was built for full reconfiguration or partial reconfiguration. Another example is timeout values for enabling or disabling the bridges in the FPGA. As the complexity of the FPGA design increases, the bridges in the FPGA may take longer times to enable or disable. This patch adds a new 'struct fpga_image_info', moves the current 'u32 flags' to it. Two other image-specific u32's are added for the bridge enable/disable timeouts. The FPGA Manager API functions are changed, replacing the 'u32 flag' parameter with a pointer to struct fpga_image_info. Subsequent patches fix the existing low level FPGA manager drivers. Signed-off-by: Alan Tull <atull@opensource.altera.com> Acked-by: Moritz Fischer <moritz.fischer@ettus.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alan Tull authored
New bindings document for FPGA Region to support programming FPGA's under Device Tree control Signed-off-by: Alan Tull <atull@opensource.altera.com> Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alan Tull authored
This patch adds a minor change in the FPGA Manager API to hold information that is specific to an FPGA image file. This change is expected to bring little, if any, pain. An FPGA image file will have particulars that affect how the image is programmed to the FPGA. One example is that current 'flags' currently has one bit which shows whether the FPGA image was built for full reconfiguration or partial reconfiguration. Another example is timeout values for enabling or disabling the bridges in the FPGA. As the complexity of the FPGA design increases, the bridges in the FPGA may take longer times to enable or disable. This patch documents the change in the FPGA Manager API functions, replacing the 'u32 flag' parameter with a pointer to struct fpga_image_info. Signed-off-by: Alan Tull <atull@opensource.altera.com> Acked-by: Moritz Fischer <moritz.fischer@ettus.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alan Tull authored
The intent is to provide a non-DT method of getting ahold of a FPGA manager to do some FPGA programming. This patch refactors of_fpga_mgr_get() to reuse most of it while adding a new method fpga_mgr_get() for getting a pointer to a fpga manager struct, given the device. Signed-off-by: Alan Tull <atull@opensource.altera.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alan Tull authored
This patch add of overlay notifications. When DT overlays are being added, some drivers/subsystems need to see device tree overlays before the changes go into the live tree. This is distinct from reconfig notifiers that are post-apply or post-remove and which issue very granular notifications without providing access to the context of a whole overlay. The following 4 notificatons are issued: OF_OVERLAY_PRE_APPLY OF_OVERLAY_POST_APPLY OF_OVERLAY_PRE_REMOVE OF_OVERLAY_POST_REMOVE In the case of pre-apply notification, if the notifier returns error, the overlay will be rejected. This patch exports two functions for registering/unregistering notifications: of_overlay_notifier_register(struct notifier_block *nb) of_overlay_notifier_unregister(struct notifier_block *nb) The of_mutex is held during these notifications. The notification data includes pointers to the overlay target and the overlay: struct of_overlay_notify_data { struct device_node *overlay; struct device_node *target; }; Signed-off-by: Alan Tull <atull@opensource.altera.com> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Moritz Fischer <moritz.fischer@ettus.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Paul Gortmaker authored
The Makefile currently controlling compilation of this code is obj-y, meaning that it currently is not being built as a module by anyone. Lets remove the couple traces of modular usage, so that when reading the driver there is no doubt it is builtin-only. Since module_misc_device translates to device_initcall in the non-modular case, the init ordering remains unchanged with this commit. Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Michael Holzheu <holzheu@linux.vnet.ibm.com> Cc: linux-s390@vger.kernel.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Paul Gortmaker authored
The Kconfig currently controlling compilation of this code is: config BF561_COREB bool "Enable Core B loader" ...meaning that it currently is not being built as a module by anyone. Lets remove the modular code that is essentially orphaned, so that when reading the driver there is no doubt it is builtin-only. Since module_misc_device translates to device_initcall in the non-modular case, the init ordering remains unchanged with this commit. We also delete the MODULE_LICENSE tag etc. since all that information was (or is now) contained at the top of the file in the comments. Cc: Bas Vermeulen <bvermeul@blackstar.xs4all.nl> Cc: Steven Miao <realmz6@gmail.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Paul Gortmaker authored
The Kconfig currently controlling compilation of this code is: drivers/lightnvm/Kconfig:menuconfig NVM drivers/lightnvm/Kconfig: bool "Open-Channel SSD target support" ...meaning that it currently is not being built as a module by anyone. Lets remove the modular code that is essentially orphaned, so that when reading the driver there is no doubt it is builtin-only. Since module_misc_driver translates to device_initcall in the non-modular case, the init ordering remains unchanged with this commit. We also delete the MODULE_LICENSE tag etc. since all that information is already contained at the top of the file in the comments. We replace module.h with moduleparam.h because this file still uses module params to control behaviour. Also note that MODULE_ALIAS is a no-op for non-modular code. Cc: Matias Bjorling <mb@lightnvm.io> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Robin van der Gracht authored
Signed-off-by: Robin van der Gracht <robin@protonic.nl> CC: Miguel Ojeda Sandonis <miguel.ojeda.sandonis@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Robin van der Gracht authored
Added a driver for the Holtek HT16K33 LED controller with keyscan. Signed-off-by: Robin van der Gracht <robin@protonic.nl> CC: Miguel Ojeda Sandonis <miguel.ojeda.sandonis@gmail.com> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alexander Usyskin authored
Tell the FW that we are running a sane OS and TPM2_ChangeEPS() is supported. This workaround was added to support other broken OS and we need to follow here. The command is sent just once at the boot time. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Catalin Marinas authored
The flush_icache_range() API is meant to be used on kernel addresses only as it may not have the infrastructure (exception entries) to handle user memory faults. The lkdtm execute_user_location() function tests the kernel execution of user space addresses by mmap'ing an anonymous page, copying some code together with cache maintenance and attempting to run it. However, the cache maintenance step may fail because of the incorrect API usage described above. The patch changes lkdtm to use access_process_vm() for copying the code into user space which would take care of the necessary cache maintenance. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> [kees: export access_process_vm() for module use] Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Lorenzo Stoakes authored
Moving from get_user_pages() to get_user_pages_unlocked() simplifies the code and takes advantage of VM_FAULT_RETRY functionality when faulting in pages. Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Jonathan Richardson authored
Add support for 32 and 64-bit versions of Broadcom's On-Chip OTP controller. These controllers are used on SoC's such as Cygnus and Stingray. Reviewed-by: Ray Jui <ray.jui@broadcom.com> Tested-by: Jonathan Richardson <jonathan.richardson@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Signed-off-by: Oza Pawandeep <oza@broadcom.com> Signed-off-by: Jonathan Richardson <jonathan.richardson@broadcom.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Jonathan Richardson authored
Reviewed-by: Ray Jui <ray.jui@broadcom.com> Tested-by: Jonathan Richardson <jonathan.richardson@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Signed-off-by: Oza Pawandeep <oza@broadcom.com> Signed-off-by: Jonathan Richardson <jonathan.richardson@broadcom.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Joachim Eastwood authored
Documenation for the LPC18xx/43xx OTP memory bindings. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Joachim Eastwood authored
Add simple read only driver for the internal OTP (One Time Programmable) memory found on all NXP LPC18xx and LPC43xx devices. The OTP memory is split into 4 banks each with 4 32-bits word. Some of the banks contain predefined data while others are for general purpose and user programmable via the OTP API in ROM. Note that writing to the OTP memory is not yet supported. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Tested-by: Vladimir Zapolskiy <vz@mleia.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Chris Metcalf authored
The code was already configured that way, but the Kconfig file didn't support requesting it. A buglet caused a null pointer deref when unloading the module, but this commit also corrects that issue. Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alexander Usyskin authored
Prepare the client write functions to set the internal flag in message header. Carry both blocking and internal modes inside the transmit cb, and call internal bus function __mei_cl_send() with send mode bit mask. The Internal flag should be added only on messages generated by the driver. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 09 Nov, 2016 1 commit
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Amir Levy authored
This first patch updates the NHI Thunderbolt controller registers file to reflect that it is not only for Cactus Ridge. No functional change intended. Signed-off-by: Amir Levy <amir.jer.levy@intel.com> Signed-off-by: Andreas Noever <andreas.noever@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 07 Nov, 2016 13 commits
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K. Y. Srinivasan authored
Signal the host when we determine the host is to be signaled - on th read path. The currrent code determines the need to signal in the ringbuffer code and actually issues the signal elsewhere. This can result in the host viewing this interrupt as spurious since the host may also poll the channel. Make the necessary adjustments. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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K. Y. Srinivasan authored
Signal the host when we determine the host is to be signaled. The currrent code determines the need to signal in the ringbuffer code and actually issues the signal elsewhere. This can result in the host viewing this interrupt as spurious since the host may also poll the channel. Make the necessary adjustments. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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K. Y. Srinivasan authored
One of the factors that can result in the host concluding that a given guest in mounting a DOS attack is if the guest generates interrupts to the host when the host is not expecting it. If these "spurious" interrupts reach a certain rate, the host can throttle the guest to minimize the impact. The host computation of the "expected number of interrupts" is strictly based on the ring transitions. Until the host logic is fixed, base the guest logic to interrupt solely on the ring state. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Weibing Zhang authored
Remove unnecessary header files and netlink related code as the daemons do not use netlink to communicate with the kernel now. Signed-off-by: Weibing Zhang <atheism.zhang@gmail.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Weibing Zhang authored
hv_kvp_daemon.c: In function .kvp_mac_to_if_name.: hv_kvp_daemon.c:705:2: warning: format not a string literal and no format arguments [-Wformat-security] snprintf(dev_id, sizeof(dev_id), kvp_net_dir); ^ hv_kvp_daemon.c:705:2: warning: format not a string literal and no format arguments [-Wformat-security] Signed-off-by: Weibing Zhang <atheism.zhang@gmail.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Weibing Zhang authored
The link flag pthread is not needed. Signed-off-by: Weibing Zhang <atheism.zhang@gmail.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alex Ng authored
Balloon driver was only printing the size of the info blob and not the actual content. This fixes it so that the info blob (max page count as configured in Hyper-V) is printed out. Signed-off-by: Alex Ng <alexng@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alex Ng authored
Increase the timeout of backup operations. When system is under I/O load, it needs more time to freeze. These timeout values should also match the host timeout values more closely. Signed-off-by: Alex Ng <alexng@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alex Ng authored
Adding log messages to help troubleshoot error cases and transaction handling. Signed-off-by: Alex Ng <alexng@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alex Ng authored
Added logging to help troubleshoot common ballooning, hot add, and versioning issues. Signed-off-by: Alex Ng <alexng@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alex Ng authored
If the guest does not support memory hotplugging, it should respond to the host with zero pages added and successful result code. This signals to the host that hotplugging is not supported and the host will avoid sending future hot-add requests. Signed-off-by: Alex Ng <alexng@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alex Ng authored
We should intentionally declare the protocols to use for every known host and default to using the latest protocol if the host is unknown or new. Signed-off-by: Alex Ng <alexng@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Vitaly Kuznetsov authored
I discovered that at least WS2016TP5 host has 60 seconds timeout for the ICMSGTYPE_NEGOTIATE message so we need to lower guest's timeout a little bit to make sure we always respond in time. Let's make it 55 seconds. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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