** Also affects: linux (Ubuntu Cosmic)
Importance: Undecided
Assignee: dann frazier (dannf)
Status: In Progress
** Changed in: linux (Ubuntu Cosmic)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1794166
Title:
Add functional level reset support for the SAS controller on HiSilicon
D06 systems
Status in linux package in Ubuntu:
Fix Committed
Status in linux source package in Bionic:
In Progress
Status in linux source package in Cosmic:
Fix Committed
Bug description:
[Impact]
Administrators are not able to request an FLR reset via sysfs on v3 hisi_sas
controllers.
[Test Case]
dmesg -c > /dev/null
echo 1 > /sys/devices/pci0000:74/0000:74:02.0/reset
dmesg
Expected output:
[259487.660676] hisi_sas_v3_hw 0000:74:02.0: FLR prepare
[259489.602044] hisi_sas_v3_hw 0000:74:02.0: FLR done
[Fix]
commit e5ea48014adcb030b9d92743e87fbbcbbb2a1d70
Author: Xiaofei Tan <tanxiao...@huawei.com>
Date: Wed Jul 18 22:14:30 2018 +0800
scsi: hisi_sas: Implement handlers of PCIe FLR for v3 hw
[Regression Risk]
The fix itself has a low regression risk because it implements a
previously-unsupported feature. However, there are 2 changesets that refactor
reset code ahead that are required before the above fix, and that refactoring
has a risk of introducing a regression.
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