Commit c8ce1618 authored by Changpeng Liu's avatar Changpeng Liu Committed by Daniel Verkamp
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bdev/nvme: set bdev write cache flag according to NVMe capability 



Change-Id: Iad307b0d1883d00b2e68bbdfaa94f05955a8314d
Signed-off-by: default avatarChangpeng Liu <changpeng.liu@intel.com>
parent 44e60dc4

lib/bdev/nvme/blockdev_nvme.c

+6 −1
Original line number Diff line number Diff line
@@ -594,7 +594,12 @@ nvme_ctrlr_initialize_blockdevs(struct spdk_nvme_ctrlr *ctrlr, int bdev_per_ns, 
				bdev->disk.max_unmap_bdesc_count =

					NVME_DEFAULT_MAX_UNMAP_BDESC_COUNT;

			}



			bdev->disk.write_cache = 0;

			if (cdata->vwc.present) {

				/* Enable if the Volatile Write Cache exists */

				bdev->disk.write_cache = 1;

			}

			bdev->blocklen = spdk_nvme_ns_get_sector_size(ns);

			bdev->disk.blocklen = bdev->blocklen;

			bdev->disk.blockcnt = bdev->lba_end - bdev->lba_start + 1;