** Changed in: linux (Ubuntu Artful)
Status: Triaged => Fix Committed
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https://bugs.launchpad.net/bugs/1704435
Title:
[Xenial] nvme: Quirks for PM1725 controllers
Status in linux package in Ubuntu:
Fix Committed
Status in linux source package in Xenial:
Triaged
Status in linux source package in Yakkety:
Triaged
Status in linux source package in Zesty:
Triaged
Status in linux source package in Artful:
Fix Committed
Bug description:
== SRU Xenial ==
Pick up the following device quirk to resolve a hardware/firmware bug
affectung some NVMe drives that use the PM1725 controller. Under adverse
circumstances the bug can result in data corruption and loss.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d554b5e1ca64d23e4f839e6531490fee8479fbaf
nvme: Quirks for PM1725 controllers
PM1725 controllers have a couple of quirks that need to be handled in
the driver:
- I/O queue depth must be limited to 64 entries on controllers that do
not report MQES.
- The host interface registers go offline briefly while resetting the
chip. Thus a delay is needed before checking whether the controller
is ready.
Note that the admin queue depth is also limited to 64 on older versions
of this board. Since our NVME_AQ_DEPTH is now 32 that is no longer an
issue.
Signed-off-by: Martin K. Petersen <[email protected]>
Signed-off-by: Sagi Grimberg <[email protected]>
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