linux

iv/linux

History

Jeffle Xu 21cc2f3f79 nvme-pci: allocate separate interrupt for the reserved non-polled I/O queue

One queue will be reserved for non-polled IO when nvme.poll_queues is
greater or equal than the number of IO queues that the nvme controller
can provide. Currently the reserved queue for non-polled IO will reuse
the interrupt used by admin queue in this case, e.g, vector 0.

This can work and the performance may not be an issue since the admin
queue is used unfrequently. However this behaviour may be inconsistent
with that when nvme.poll_queues is smaller than the number of IO
queues available.

Thus allocate separate interrupt for this reserved queue, and thus make
the behaviour consistent.

Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
[hch: minor cleanups, mostly to the pre-existing surrounding code]
Signed-off-by: Christoph Hellwig <hch@lst.de>

2020-09-27 09:14:19 +02:00

core.c

nvme: use an xarray to lookup the Commands Supported and Effects log

2020-09-27 09:14:18 +02:00

fabrics.c

nvme-fabrics: allow to queue requests for live queues

2020-09-09 08:00:50 +02:00

fabrics.h

nvme: fix deadlock in disconnect during scan_work and/or ana_work

2020-07-29 07:45:19 +02:00

fault_inject.c

nvme: enable to inject errors into admin commands