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path: root/include/linux/hyperv.h
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2013-09-26hv: move "monitor_id" bus attribute to dev_groupsGreg Kroah-Hartman1-1/+0
This moves the "state" bus attribute to the dev_groups structure, removing the need for it to be in a temporary structure. Tested-by: "K. Y. Srinivasan" <[email protected]> Cc: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-09-26hv: move "state" bus attribute to dev_groupsGreg Kroah-Hartman1-1/+0
This moves the "state" bus attribute to the dev_groups structure, removing the need for it to be in a temporary structure. Tested-by: "K. Y. Srinivasan" <[email protected]> Cc: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-09-26hv: use dev_groups for device attributesGreg Kroah-Hartman1-1/+0
This patch is the first in a series that moves the hv bus code to use the dev_groups field instead of dev_attrs, as dev_attrs is going away in future kernel releases. It moves the id sysfs file to the dev_groups structure, and creates the needed show/store functions, instead of relying on one "universal" function for this. By doing this, it removes the need for this to be in a temporary structure. Tested-by: "K. Y. Srinivasan" <[email protected]> Cc: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-08-02Drivers: hv: remove HV_DRV_VERSIONOlaf Hering1-21/+0
Remove HV_DRV_VERSION, it has no meaning for upstream drivers. Initially it was supposed to show the "Linux Integration Services" version, now it is not in sync anymore with the out-of-tree drivers available from the MSFT website. The only place where a version string is still required is the KVP command "IntegrationServicesVersion" which is handled by tools/hv/hv_kvp_daemon.c. To satisfy such KVP request from the host pass the current string to the daemon during KVP userland registration. Signed-off-by: Olaf Hering <[email protected]> Acked-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-07-26Drivers: hv: util: Fix a bug in version negotiation code for util servicesK. Y. Srinivasan1-1/+9
The current code picked the highest version advertised by the host. WS2012 R2 has implemented a protocol version for KVP that is not compatible with prior protocol versions of KVP. Fix the bug in the current code by explicitly specifying the protocol version that the guest can support. Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-06-03Drivers: hv: Add the GUID fot synthetic fibre channel deviceK. Y. Srinivasan1-0/+10
In preparation for supporting synthetic Fiber Channel device, add the GUID for this service. Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-06-03Drivers: hv: vmbus: Implement multi-channel supportK. Y. Srinivasan1-1/+61
Starting with Win8, the host supports multiple sub-channels for a given device. As in the past, the initial channel offer specifies the device and is associated with both the type and the instance GUIDs. For performance critical devices, the host may support multiple sub-channels. The sub-channels share the same type and instance GUID as the primary channel. The number of sub-channels offerrred to the guest depends on the number of virtual CPUs assigned to the guest. The guest can request the creation of these sub-channels and once created and opened, the guest can distribute the traffic across all the channels (the primary and the sub-channels). A request sent on a sub-channel will have the response delivered on the same sub-channel. At channel (sub-channel) creation we bind the channel interrupt to a CPU and with this sub-channel support we will be able to spread the interrupt load of a given device across all available CPUs. Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-04-29drivers/video: add Hyper-V Synthetic Video Frame Buffer DriverHaiyang Zhang1-0/+11
This is the driver for the Hyper-V Synthetic Video, which supports screen resolution up to Full HD 1920x1080 on Windows Server 2012 host, and 1600x1200 on Windows Server 2008 R2 or earlier. It also solves the double mouse cursor issue of the emulated video mode. Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Cc: Greg Kroah-Hartman <[email protected]>, Cc: Olaf Hering <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Cc: Florian Tobias Schandinat <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2013-03-15Drivers: hv: Add a new driver to support host initiated backupK. Y. Srinivasan1-0/+69
This driver supports host initiated backup of the guest. On Windows guests, the host can generate application consistent backups using the Windows VSS framework. On Linux, we ensure that the backup will be file system consistent. This driver allows the host to initiate a "Freeze" operation on all the mounted file systems in the guest. Once the mounted file systems in the guest are frozen, the host snapshots the guest's file systems. Once this is done, the guest's file systems are "thawed". This driver has a user-level component (daemon) that invokes the appropriate operation on all the mounted file systems in response to the requests from the host. The duration for which the guest is frozen is very short - a few seconds. During this interval, the diff disk is comitted. In this version of the patch I have addressed the feedback from Olaf Herring. Also, some of the connector related issues have been fixed. Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Cc: Evgeniy Polyakov <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-01-25Drivers: hv: vmbus: Consolidate all offer GUID definitions in hyperv.hK. Y. Srinivasan1-0/+94
Consolidate all GUID definitions in hyperv.h and use these definitions in implementing channel bindings (as far as interrupt delivery goes). Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-01-17Drivers: hv: Enable protocol negotiation with win8 hostsK. Y. Srinivasan1-0/+1
Now that we have implemented all of the Win8 (WS2012) functionality, negotiate Win8 protocol with the host. Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-01-17Drivers: hv: Add state to manage incoming channel interrupt loadK. Y. Srinivasan1-2/+19
Add state to bind a channel to a specific VCPU. This will help us better distribute incoming interrupt load. Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-01-17Drivers: hv: Manage signaling state on a per-connection basisK. Y. Srinivasan1-0/+25
The current code has a global handle for supporting signaling of the host from guest. Make this a per-channel attribute as on some versions of the host we can signal on per-channel handle. Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-01-17Drivers: hv: Move vmbus version definitions to hyperv.hK. Y. Srinivasan1-0/+15
To support version specific optimization in various vmbus drivers, move the vmbus definitions to the public header file. Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-01-17Drivers: hv: Save and export negotiated vmbus versionK. Y. Srinivasan1-0/+6
Export the negotiated vmbus version as this may be useful for individual drivers. Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-01-17Drivers: hv: Extend/modify vmbus_channel_offer_channel for win7 and beyondK. Y. Srinivasan1-5/+31
The "offfer" message sent by the host has been extended in win7 (ws2008 R2). Add/modify state to reflect this extension. All these changes are backward compatible. Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-01-17Drivers: hv: Update the ring buffer structure to match win8 functionalityK. Y. Srinivasan1-7/+21
Update the ringbuffer structure to support win8 functionality. Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-01-17Drivers: hv: Support handling multiple VMBUS versionsK. Y. Srinivasan1-6/+0
The current code hard coded the vmbus version independent of the host it was running on. Add code to dynamically negotiate the most appropriate version. Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-01-17Drivers: hv: Add state to manage batched readingK. Y. Srinivasan1-0/+20
For the "read" side signaling optimization, the reader has to completely drain the queue before exiting. Add state to manage this "batched" reading. Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-09-10Tools: hv: Implement the KVP verb - KVP_OP_SET_IP_INFOK. Y. Srinivasan1-0/+2
Implement the KVP verb - KVP_OP_SET_IP_INFO. This operation configures the specified interface based on the given configuration. Since configuring an interface is very distro specific, we invoke an external (Distro specific) script to configure the interface. Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-08-16Drivers: hv: Explicitly size elements of protocol structuresK. Y. Srinivasan1-4/+4
Use explicitly sized types in data structures defining the host/guest protocol. Reported-by: Juan Sanchez-Agrelo <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-08-16Drivers: hv: kvp: Cleanup error handling in KVPK. Y. Srinivasan1-6/+11
In preparation to implementing IP injection, cleanup the way we propagate and handle errors both in the driver as well as in the user level daemon. Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Reviewed-by: Olaf Hering <[email protected]> Reviewed-by: Ben Hutchings <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-08-16Drivers: hv: Add KVP definitions for IP address injectionK. Y. Srinivasan1-2/+74
Add the necessary definitions for supporting the IP injection functionality. Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Reviewed-by: Olaf Hering <[email protected]> Reviewed-by: Ben Hutchings <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-05-22Merge tag 'driver-core-3.5-rc1' of ↵Linus Torvalds1-1/+3
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg Kroah-Hartman: "Here's the driver core, and other driver subsystems, pull request for the 3.5-rc1 merge window. Outside of a few minor driver core changes, we ended up with the following different subsystem and core changes as well, due to interdependancies on the driver core: - hyperv driver updates - drivers/memory being created and some drivers moved into it - extcon driver subsystem created out of the old Android staging switch driver code - dynamic debug updates - printk rework, and /dev/kmsg changes All of this has been tested in the linux-next releases for a few weeks with no reported problems. Signed-off-by: Greg Kroah-Hartman <[email protected]>" Fix up conflicts in drivers/extcon/extcon-max8997.c where git noticed that a patch to the deleted drivers/misc/max8997-muic.c driver needs to be applied to this one. * tag 'driver-core-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (90 commits) uio_pdrv_genirq: get irq through platform resource if not set otherwise memory: tegra{20,30}-mc: Remove empty *_remove() printk() - isolate KERN_CONT users from ordinary complete lines sysfs: get rid of some lockdep false positives Drivers: hv: util: Properly handle version negotiations. Drivers: hv: Get rid of an unnecessary check in vmbus_prep_negotiate_resp() memory: tegra{20,30}-mc: Use dev_err_ratelimited() driver core: Add dev_*_ratelimited() family Driver Core: don't oops with unregistered driver in driver_find_device() printk() - restore prefix/timestamp printing for multi-newline strings printk: add stub for prepend_timestamp() ARM: tegra30: Make MC optional in Kconfig ARM: tegra20: Make MC optional in Kconfig ARM: tegra30: MC: Remove unnecessary BUG*() ARM: tegra20: MC: Remove unnecessary BUG*() printk: correctly align __log_buf ARM: tegra30: Add Tegra Memory Controller(MC) driver ARM: tegra20: Add Tegra Memory Controller(MC) driver printk() - restore timestamp printing at console output printk() - do not merge continuation lines of different threads ...
2012-05-14Drivers: hv: util: Properly handle version negotiations.K. Y. Srinivasan1-1/+3
The current version negotiation code is not "future proof". Fix this by allowing each service the flexibility to either specify the highest version it can support or it can support the highest version number the host is offering. Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-04-03net/hyperv: Add flow control based on hi/low watermarkHaiyang Zhang1-0/+27
In the existing code, we only stop queue when the ringbuffer is full, so the current packet has to be dropped or retried from upper layer. This patch stops the tx queue when available ringbuffer is below the low watermark. So the ringbuffer still has small amount of space available for the current packet. This will reduce the overhead of retries on sending. Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-03-16Tools: hv: Support enumeration from all the poolsK. Y. Srinivasan1-0/+1
We have only supported enumeration only from the AUTO pool. Now support enumeration from all the available pools. Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Reviewed-by: Dan Carpenter <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-03-16Drivers: hv: Support the newly introduced KVP messages in the driverK. Y. Srinivasan1-0/+2
Support the newly defined KVP message types. It turns out that the host pushes a set of standard key value pairs as soon as the guest opens the KVP channel. Since we cannot handle these tuples until the user level daemon loads up, defer reading the KVP channel until the user level daemon is launched. Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Reviewed-by: Dan Carpenter <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-03-13Drivers: hv: Add new message types to enhance KVPK. Y. Srinivasan1-3/+27
Add additional KVP (Key Value Pair) protocol messages to enhance KVP functionality for Linux guests on Hyper-V. As part of this, patch define an explicit version negoitiation message. Reviewed-by: Haiyang Zhang <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-03-09Merge 3.3-rc6 into driver-core-nextGreg Kroah-Hartman1-1/+1
This was done to resolve a conflict in the drivers/base/cpu.c file. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-02-09drivers: hv: kvp: Cleanup the kernel/user protocolK. Y. Srinivasan1-25/+5
Now, cleanup the user/kernel KVP protocol by using the same structure definition that is used for host/guest KVP protocol. This simplifies the code. Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-02-09drivers: hv: Cleanup the kvp related state in hyperv.hK. Y. Srinivasan1-13/+14
Now cleanup the hyperv.h with regards to KVP definitions. Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-02-02drivers: hv: kvp: Move the contents of hv_kvp.h to hyperv.hK. Y. Srinivasan1-0/+165
In preparation for consolidating all KVP related defines into a single header file that both the kernel and user level components can use, move the contents of hv_kvp.h into hyperv.h. Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-02-02net/hyperv: Fix the page buffer when an RNDIS message goes beyond page boundaryHaiyang Zhang1-1/+1
There is a possible data corruption if an RNDIS message goes beyond page boundary in the sending code path. This patch fixes the problem. Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-01-04net/hyperv: Add support for jumbo frame up to 64KBHaiyang Zhang1-1/+1
Allow the user set the MTU up to 65536 for Linux guests running on Hyper-V 2008 R2 or later. Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-10-11hv: remove struct hv_device_info from hyperv.hGreg Kroah-Hartman1-18/+0
This is only used/needed by the vmbus core code, so move it out of the hyperv.h file and into the .c file that uses it. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-10-11hv: remove free_channel() from hyperv.hGreg Kroah-Hartman1-2/+0
This function is only used in the file it is declared in (channel_mgmt.c) so make it static and remove it from the hyperv.h file. Cc: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-10-11hv: hyperv.h: remove unneeded forward declarations of structuresGreg Kroah-Hartman1-3/+0
This file was created by mushing different .h files together and it shows. This change removes some unneeded forward declarations. Cc: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-10-11hv: hyperv.h: remove unused module macrosGreg Kroah-Hartman1-23/+0
I have no idea what these were ever for, but they aren't used, so delete them. Cc: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-10-11hv: remove unused LOWORD and HIWORD macros from hyperv.hGreg Kroah-Hartman1-4/+0
They aren't used anywhere anymore now that the debugging macros are gone, so remove it from hyperv.h as well. Cc: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-10-11Staging: hv: remove vmbus_loglevel as it is not used at all anymoreGreg Kroah-Hartman1-5/+0
As there is no user of this variable, it's time to delete it. For dynamic debugging of the hyperv code, use the standard dynamic debug kernel interface. Cc: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-10-11Staging: hv: remove last user of DPRINT() macroGreg Kroah-Hartman1-8/+0
This also removed the unused function hv_dump_ring_info(). Cc: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-10-11Staging: hv: storvsc: remove last usage of DPRINT_WARNGreg Kroah-Hartman1-6/+0
Used the correct dev_warn() call instead. Cc: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-10-11hv: remove a bunch of unused debug macros from hyperv.hGreg Kroah-Hartman1-24/+0
These aren't used by anyone anymore, so remove them before someone tries to use them again. Cc: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-10-11hv: rename prep_negotiate_resp() to vmbus_prep_negotiate_resp()Greg Kroah-Hartman1-2/+2
It's a global symbol, so properly prefix it and use the proper EXPORT value as well. Cc: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-10-11Staging: hv: remove unneeded asm include file in hyperv.hGreg Kroah-Hartman1-3/+0
No one outside of the hyperv core needs to include the asm/hyperv.h file, so don't put it in the "global" include/linux/hyperv.h file. Cc: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-10-10Staging: hv: move hyperv code out of staging directoryGreg Kroah-Hartman1-0/+969
After many years wandering the desert, it is finally time for the Microsoft HyperV code to move out of the staging directory. Or at least the core hyperv bus code, and the utility driver, the rest still have some review to get through by the various subsystem maintainers. Signed-off-by: Greg Kroah-Hartman <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]>
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