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[PATCH 09/17] hw/block/nvme: flush write cache when disabled
From: |
Klaus Jensen |
Subject: |
[PATCH 09/17] hw/block/nvme: flush write cache when disabled |
Date: |
Mon, 29 Jun 2020 20:26:34 +0200 |
From: Klaus Jensen <k.jensen@samsung.com>
If the write cache is disabled with a Set Features command, flush it if
currently enabled.
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
---
hw/block/nvme.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 39e680a15c56..c2507d8836fd 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -1153,6 +1153,10 @@ static uint16_t nvme_set_feature(NvmeCtrl *n, NvmeCmd
*cmd, NvmeRequest *req)
break;
case NVME_VOLATILE_WRITE_CACHE:
+ if (!(dw11 & 0x1) && blk_enable_write_cache(n->conf.blk)) {
+ blk_flush(n->conf.blk);
+ }
+
blk_set_enable_write_cache(n->conf.blk, dw11 & 1);
break;
case NVME_NUMBER_OF_QUEUES:
--
2.27.0
- [PATCH 00/17] hw/block/nvme: bump to v1.3, Klaus Jensen, 2020/06/29
- [PATCH 04/17] hw/block/nvme: add temperature threshold feature, Klaus Jensen, 2020/06/29
- [PATCH 03/17] hw/block/nvme: add support for the abort command, Klaus Jensen, 2020/06/29
- [PATCH 02/17] hw/block/nvme: additional tracing, Klaus Jensen, 2020/06/29
- [PATCH 01/17] hw/block/nvme: bump spec data structures to v1.3, Klaus Jensen, 2020/06/29
- [PATCH 05/17] hw/block/nvme: mark fw slot 1 as read-only, Klaus Jensen, 2020/06/29
- [PATCH 06/17] hw/block/nvme: add support for the get log page command, Klaus Jensen, 2020/06/29
- [PATCH 07/17] hw/block/nvme: add support for the asynchronous event request command, Klaus Jensen, 2020/06/29
- [PATCH 10/17] hw/block/nvme: fix missing endian conversion, Klaus Jensen, 2020/06/29
- [PATCH 08/17] hw/block/nvme: move NvmeFeatureVal into hw/block/nvme.h, Klaus Jensen, 2020/06/29
- [PATCH 09/17] hw/block/nvme: flush write cache when disabled,
Klaus Jensen <=
- [PATCH 11/17] hw/block/nvme: add remaining mandatory controller parameters, Klaus Jensen, 2020/06/29
- [PATCH 14/17] hw/block/nvme: support identify namespace descriptor list, Klaus Jensen, 2020/06/29
- [PATCH 15/17] hw/block/nvme: enforce valid queue creation sequence, Klaus Jensen, 2020/06/29
- [PATCH 16/17] hw/block/nvme: provide the mandatory subnqn field, Klaus Jensen, 2020/06/29
- [PATCH 17/17] hw/block/nvme: bump supported version to v1.3, Klaus Jensen, 2020/06/29
- [PATCH 13/17] hw/block/nvme: make sure ncqr and nsqr is valid, Klaus Jensen, 2020/06/29
- [PATCH 12/17] hw/block/nvme: support the get/set features select and save fields, Klaus Jensen, 2020/06/29