** Tags added: kernel-da-key kernel-hyper-v
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu)
Status: Confirmed => Triaged
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1663687
Title:
[Hyper-V] Bug fixes for storvsc (tagged queuing, error conditions)
Status in linux package in Ubuntu:
Triaged
Bug description:
Patchset:
1/6 Enable tracking of queue depth.
2/6 Remove the artificially imposed restriction on max segment size.
3/6 Enable multi-q support. We will allocate the outgoing channel using
the following policy:
1. We will make every effort to pick a channel that is in the
same NUMA node that is initiating the I/O
2. The mapping between the guest CPU and the outgoing channel
is persistent.
4/6 Properly set SRB flags when hosting device supports tagged queuing.
This patch improves the performance on Fiber Channel disks.
5/6 When sense message is present on error, we should pass along to the upper
layer to decide how to deal with the error.
This patch fixes connectivity issues with Fiber Channel devices.
6/6 On I/O errors, the Windows driver doesn't set data_transfer_length
on error conditions other than SRB_STATUS_DATA_OVERRUN.
In these cases we need to set data_transfer_length to 0,
indicating there is no data transferred. On SRB_STATUS_DATA_OVERRUN,
data_transfer_length is set by the Windows driver to the actual data
transferred.
The new feature (multi-q) in this patchset require boot line
parameters to enable so they are safe to integrate.
K. Y. Srinivasan (3):
storvsc: Enable tracking of queue depth
storvsc: Remove the restriction on max segment size
storvsc: Enable multi-queue support
Long Li (3):
storvsc: use tagged SRB requests if supported by the device
storvsc: properly handle SRB_ERROR when sense message is present
storvsc: properly set residual data length on errors
https://git.kernel.org/cgit/linux/kernel/git/next/linux-
next.git/commit/?id=40630f462824ee24bc00d692865c86c3828094e0
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1663687/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : [email protected]
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
