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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

I was able to create a Precise test kernel with the request patches.
The test kernel can be downloaded from:

http://kernel.ubuntu.com/~jsalisbury/lp1445195/precise/

There were quite a few prerequisites required to get the requested
patches into Precise.  Due to this, these may be too many changes for an
SRU.  In that case, the lts-backport kernel would have to be used with
Precise.

The following is a list of the needed prerequisites(Note the SHA1 is not
the upstream SHA1, but subject is the same as upstream):

134b913 scsi: storvsc: Size the queue depth based on the ringbuffer size
6410547 scsi: storvsc: Increase the ring buffer size
39fb497 storvsc: use cmd_size to allocate per-command data
45c7382 Drivers: hv: vmbus: Support a vmbus API for efficiently sending page arrays
8dac1a7 virtio_scsi: use cmd_size
705de1c scsi: add a blacklist flag which enables VPD page inquiries
e99a978 [SCSI] add support for per-host cmd pools
529db02 hv: Add hyperv.h to uapi headers
33200a3 [SCSI] storvsc: Implement multi-channel support
06f9766 [SCSI] storvsc: Update the storage protocol to win8 level
db2e1ac Drivers: hv: vmbus: Implement multi-channel support
1ecf050 [SCSI] Allow error handling timeout to be specified
34c3fe0 [SCSI] storvsc: Restructure error handling code on command completion
b652ce5 Drivers: hv: Manage signaling state on a per-connection basis
3250c7d Drivers: hv: Extend/modify vmbus_channel_offer_channel for win7 and beyond
b0b97ff Drivers: hv: Setup a mapping for Hyper-V's notion cpu ID
dd2de78 Drivers: hv: Optimize the signaling on the write path
2741cbd Drivers: hv: Move vmbus version definitions to hyperv.h
dfa47ec Drivers: hv: Save and export negotiated vmbus version
b718621 Drivers: hv: Support handling multiple VMBUS versions
f43b693 [SCSI] Disable DIF on Hitachi Ultrastar 15K300
d3c4496 [SCSI] Handle disk devices which can not process medium access commands

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https://bugs.launchpad.net/bugs/1445195

Title:
  [Hyper-V] Kernel patches for storvsc

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Precise:
  In Progress
Status in linux source package in Trusty:
  Fix Released
Status in linux source package in Utopic:
  Fix Released
Status in linux source package in Vivid:
  Fix Released
Status in linux source package in Wily:
  Fix Released

Bug description:
  Storage driver performance updates for vivid

  K. Y. Srinivasan (7):
    scsi: storvsc: Increase the ring buffer size
    scsi: storvsc: Size the queue depth based on the ringbuffer size
    scsi: storvsc: Always send on the selected outgoing channel
    scsi: storvsc: Retrieve information about the capability of the target
    scsi: storvsc: Fix a bug in copy_from_bounce_buffer()
    scsi: storvsc: Don't assume that the scatterlist is not chained
    scsi: storvsc: Set the tablesize based on the information given by the host

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