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authorKeith Busch <keith.busch@intel.com>2018-06-06 08:13:07 -0600
committerJens Axboe <axboe@kernel.dk>2018-06-08 12:51:11 -0600
commitfe76fcfb91a97eccf20cec17ff05a27b8d5b0801 (patch)
tree49943f1778fb52a0944c6056dca56b2192277876 /drivers
parentded45505dbfdcaf1e49ae0349e5dafb59c9efbe5 (diff)
downloadlinux-fe76fcfb91a97eccf20cec17ff05a27b8d5b0801.tar.bz2
nvme-pci: remove HMB teardown on reset
The controller is required to disable its host memory buffer use on controller reset. We don't need to submit an admin command to delete it, so this patch skips sending that command so we don't need to worry about handling a timeout. Signed-off-by: Keith Busch <keith.busch@intel.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/nvme/host/pci.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 7a42ccad3864..7f8b1bd03db4 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -2224,14 +2224,6 @@ static void nvme_dev_disable(struct nvme_dev *dev, bool shutdown)
nvme_stop_queues(&dev->ctrl);
if (!dead && dev->ctrl.queue_count > 0) {
- /*
- * If the controller is still alive tell it to stop using the
- * host memory buffer. In theory the shutdown / reset should
- * make sure that it doesn't access the host memoery anymore,
- * but I'd rather be safe than sorry..
- */
- if (dev->host_mem_descs)
- nvme_set_host_mem(dev, 0);
nvme_disable_io_queues(dev);
nvme_disable_admin_queue(dev, shutdown);
}