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path: root/drivers/staging/hv
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2012-02-13Staging: hv: storvsc: Move the storage driver out of the staging areaK. Y. Srinivasan
The storage driver (storvsc_drv.c) handles all block storage devices assigned to Linux guests hosted on Hyper-V. This driver has been in the staging tree for a while and this patch moves it out of the staging area. James was willing to apply this patch during the 3.3-rc phase and a decision was taken to defer this to 3.4 since Greg had queued up a bunch of storvsc patches for 3.4. Now that Greg has applied all of the pending storvsc patches, I am sending this patch to move this driver out of staging. Based on James' recommendation, this patch gets rid of the unneeded files in the staging/hv directory. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Acked-by: James Bottomley <JBottomley@Parallels.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Consolidate all the wire protocol definitionsK. Y. Srinivasan
Consolidate all definitions that support communication with the host. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Consolidate the request structureK. Y. Srinivasan
Consolidate the request structure by getting rid of struct hv_storvsc_request. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Get rid of some unused definesK. Y. Srinivasan
Get rid of some unused defines. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Cleanup some protocol related constantsK. Y. Srinivasan
Cleanup some protocol related constants. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Cleanup the code for generating protocol versionK. Y. Srinivasan
Cleanup the code for generating protocol version. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Miscellaneous cleanup of storvsc driverK. Y. Srinivasan
Miscellaneous cleanup of storvsc driver - get rid of unnecessary defines and use fixed size types for structures used for communication with the host. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Rename the context field in hv_storvsc_requestK. Y. Srinivasan
Rename the context field in hv_storvsc_request. As part of this change fix the type of this field. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Get rid of the on_io_completion in hv_storvsc_requestK. Y. Srinivasan
Get rid of the on_io_completion field in struct hv_storvsc_request. As part of this relocate the bounce buffer handling code (to avoid having forward declarations). Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Add a comment to explain life-cycle managementK. Y. Srinivasan
Add a comment to explain life-cycle management and fix format issue. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Move and cleanup storvsc_remove()K. Y. Srinivasan
Relocate the storvsc_remove() function to a different location in the file and invoke scsi_host_put() only after all the cleanup. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Cleanup storvsc_host_reset_handler()K. Y. Srinivasan
Cleanup storvsc_host_reset_handler() by getting rid of storvsc_host_reset(). Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Introduce defines for srb status codesK. Y. Srinivasan
Introduce defines for srb status codes. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Cleanup storvsc_queuecommand()K. Y. Srinivasan
Cleanup storvsc_queuecommand(). As part of this cleanup, rename the function to check if the scsi command can be sent to the host, consolidate error recovery and get rid of some dead code. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Cleanup storvsc_probe()K. Y. Srinivasan
Cleanup storvsc_probe(). As part of this cleanup, get rid of storvsc_get_ide_info() by inlining the necessary code. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Cleanup some commentsK. Y. Srinivasan
Use consistent format for comments and get rid of some unnecessary comments. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2011-12-08Staging: hv: storvsc: Fix a bug in create_bounce_buffer()K. Y. Srinivasan
Set the length field of the scatter gather elements correctly when we create the bounce buffer. When we use the bounce buffer for a "write" operation, the act of copying to the bounce buffer, correctly deals with this issue. However, on the "read" side, the current code was not correctly setting the buffer length. Fix this bug. Note that when we copy from the bounce buffer (for the read case), the amount we copy is controlled by the original scatter gather list given to the driver. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reported-by: Dadok Milan <dadok@kvados.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-01Staging: hv: update TODO fileGreg Kroah-Hartman
Hank is no longer at Microsoft, so remove his email address as it bounces. Cc: KY Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-01Staging: hv: remove hv_mouse driver as it's now in the hid directoryGreg Kroah-Hartman
This removes the hv_mouse driver as it's now in Jiri's HID tree in the "proper" place. Cc: KY Srinivasan <kys@microsoft.com> Cc: Jiri Kosina <jikos@jikos.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-01Staging: hv: storvsc: Implement per device memory poolsK. Y. Srinivasan
The current code implemented a per-HBA memory pool mechanism. For IDE disks managed by this driver, there is a one to one correspondance between the block device and the associated virtual HBA and since currently only IDE devices can be the boot device, this addressed the deadlock issues that were raised during the review process. This patch implements a per-lun memory pool mechanism. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-01Staging: hv: storvsc: Fix a bug in copy_from_bounce_buffer()K. Y. Srinivasan
Fix a bug in copy_from_bounce_buffer(). Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-01Staging: hv: storvsc: Fix a bug in storvsc_command_completion()K. Y. Srinivasan
Fix a bug in storvsc_command_completion() that leaks memory when scatter/gather lists are used on the "write" side. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-01Staging: hv: storvsc: Cleanup storvsc_device_alloc()K. Y. Srinivasan
The code in storvsc_device_alloc() is not needed as this would be done by default. Get rid of it. We still keep the function as we use this hook to allocate per-LUN memory pools in a later patch. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-01Staging: hv: storvsc: Disable clusteringK. Y. Srinivasan
Disable clustering, since the host side on Hyper-V requires that each I/O element not exceed the page size. As part of this cleanup, get rid of the function to merge bvecs, as the primary reason for this function was to avoid having an element exceed the page size. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-12-01Staging: hv: mousevsc: Properly add the hid deviceK. Y. Srinivasan
We need to properly add the hid device to correctly initialize the sysfs state. While this patch is against the staging tree; Jiri, please pick up this patch as you merge the Hyper-V mouse driver. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reported-by: Fuzhou Chen <fuzhouch@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-29staging: hv: move hv_netvsc out of staging areaHaiyang Zhang
hv_netvsc has been reviewed on netdev mailing list on 6/09/2011. All recommended changes have been made. We are requesting to move it out of staging area. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: KY Srinivasan <kys@microsoft.com> Signed-off-by: Mike Sterling <Mike.Sterling@microsoft.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26staging: hv: Use kmemdup rather than duplicating its implementationThomas Meyer
Use kmemdup rather than duplicating its implementation The semantic patch that makes this change is available in scripts/coccinelle/api/memdup.cocci. Signed-off-by: Thomas Meyer <thomas@m3y3r.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26Staging: hv: storvsc: Support hot-removing of scsi devicesK. Y. Srinivasan
Support hot-removing of scsi devices. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26Staging: hv: storvsc: Support hot add of scsi disksK. Y. Srinivasan
Support hot add of scsi disks. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26Staging: hv: storvsc: Upgrade the vmstor protocol versionK. Y. Srinivasan
In preparation for supporting hot add/remove of scsi devices, upgrade the vmstor protocol version. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26Staging: hv: storvsc: Get rid of an unnecessary forward declarationK. Y. Srinivasan
Get rid of an unnecessary forward declaration. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26Staging: hv: storvsc: use the macro KBUILD_MODNAMEK. Y. Srinivasan
Use the macro KBUILD_MODNAME. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26Staging: hv: storvsc: Use the unlocked version queuecommandK. Y. Srinivasan
Use the unlocked version queuecommand. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26Staging: hv: storvsc: Use the accessor function shost_priv()K. Y. Srinivasan
Use the accessor function shost_priv(). Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26Staging: hv: storvsc: Fix error handling storvsc_host_reset()K. Y. Srinivasan
Fix error handling storvsc_host_reset(). I would like to thank Long Li <longli@microsoft.com> for reporting this. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reported-by: Long Li <longli@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26Staging: hv: storvsc: Fixup the error when processing SET_WINDOW commandK. Y. Srinivasan
Fixup the error when processing SET_WINDOW command. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26Staging: hv: storvsc: Cleanup error handling in the probe functionK. Y. Srinivasan
Cleanup error handling in the probe function. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26Staging: hv: storvsc: Use mempools to allocate struct storvsc_cmd_requestK. Y. Srinivasan
We intend to use the storage driver to manage the root device. To avoid deadlocks, use mempools to allocate struct storvsc_cmd_request. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26Staging: hv: mousevsc: Use the KBUILD_MODNAME macroK. Y. Srinivasan
Use the KBUILD_MODNAME macro. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26Staging: hv: mousevsc: Add a check to prevent memory corruptionK. Y. Srinivasan
Add a check to prevent memory corruption. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26Staging: hv: mousevsc: Address some style issuesK. Y. Srinivasan
Deal with some style related issues. Also get rid of an unused macro. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26Staging: hv: mousevsc: Get rid of unnecessary include filesK. Y. Srinivasan
Get rid of unnecessary include files. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26Staging: hv: mousevsc: Add a new line to a debug stringK. Y. Srinivasan
Add a new line to a debug string. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26Staging: hv: mousevsc: Cleanup mousevsc_on_channel_callback()K. Y. Srinivasan
Cleanup mousevsc_on_channel_callback(). This is based on the code provided by Joe Perches <joe@perches.com>. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26Staging: hv: mousevsc: Inline the code for reportdesc_callback()K. Y. Srinivasan
Inline the code for reportdesc_callback() as this function is called from mousevsc_probe(). As part of this, cleanup the code in reportdesc_callback(). Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26Staging: hv: mousevsc: Inline the code for mousevsc_on_device_add()K. Y. Srinivasan
Inline the code for mousevsc_on_device_add() as this only used from the function mousevsc_probe(). Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-26Staging: hv: mousevsc: Make boolean states booleanK. Y. Srinivasan
Make some state that is boolean in nature, a boolean variable. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-10-28Merge branch 'x86-hyperv-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'x86-hyperv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: Hyper-V: Integrate the clocksource with Hyper-V detection code Fix up conflicts in drivers/staging/hv/Makefile manually (some of the hv code has moved out of staging to drivers/hv/)
2011-10-26Merge branch 'staging-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging * 'staging-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1519 commits) staging: et131x: Remove redundant check and return statement staging: et131x: Mainly whitespace changes to appease checkpatch staging: et131x: Remove last of the forward declarations staging: et131x: Remove even more forward declarations staging: et131x: Remove yet more forward declarations staging: et131x: Remove more forward declarations staging: et131x: Remove forward declaration of et131x_adapter_setup staging: et131x: Remove some forward declarations staging: et131x: Remove unused rx_ring.recv_packet_pool staging: et131x: Remove call to find pci pm capability staging: et131x: Remove redundant et131x_reset_recv() call staging: et131x: Remove unused rx_ring.recv_buffer_pool Staging: bcm: Fix three initialization errors in InterfaceDld.c Staging: bcm: Fix coding style issues in InterfaceDld.c staging:iio:dac: Add AD5360 driver staging:iio:trigger:bfin-timer: Fix compile error Staging: vt6655: add some range checks before memcpy() Staging: vt6655: whitespace fixes to iotcl.c Staging: vt6656: add some range checks before memcpy() Staging: vt6656: whitespace cleanups in ioctl.c ... Fix up conflicts in: - drivers/{Kconfig,Makefile}, drivers/staging/{Kconfig,Makefile}: vg driver movement - drivers/staging/brcm80211/brcmfmac/{dhd_linux.c,mac80211_if.c}: driver removal vs now stale changes - drivers/staging/rtl8192e/r8192E_core.c: driver removal vs now stale changes - drivers/staging/et131x/et131*: driver consolidation into one file, tried to do fixups
2011-10-19net: add skb frag size accessorsEric Dumazet
To ease skb->truesize sanitization, its better to be able to localize all references to skb frags size. Define accessors : skb_frag_size() to fetch frag size, and skb_frag_size_{set|add|sub}() to manipulate it. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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