[PATCH] nvme: Quirks for PM1725 controllers
Martin K. Petersen
martin.petersen at oracle.com
Sat Jul 1 14:31:17 PDT 2017
> 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.
Discussed this with Keith privately and he prefers the current
non-quirks approach to limiting the queue depth.
Thus no changes needed, please review/apply.
--
Martin K. Petersen Oracle Linux Engineering
More information about the Linux-nvme
mailing list