4.12-stable review patch. If anyone has any objections, please let me know.
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From: Changpeng Liu <changpeng.liu@xxxxxxxxx>
commit 223694b9ae8bfba99f3528d49d07a740af6ff95a upstream.
NVMe 1.3 specification defines the Optional Admin Command Support feature
flags, bit 8 set to '1' then the controller supports the Doorbell Buffer
Config command. Bit 7 is used for Virtualization Mangement command.
Signed-off-by: Changpeng Liu <changpeng.liu@xxxxxxxxx>
Reviewed-by: Sagi Grimberg <sagi@xxxxxxxxxxx>
Reviewed-by: Max Gurtovoy <maxg@xxxxxxxxxxxx>
Reviewed-by: Johannes Thumshirn <jthumshirn@xxxxxxx>
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Fixes: f9f38e33 ("nvme: improve performance for virtual NVMe devices")
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
include/linux/nvme.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -245,7 +245,7 @@ enum {
NVME_CTRL_ONCS_WRITE_ZEROES = 1 << 3,
NVME_CTRL_VWC_PRESENT = 1 << 0,
NVME_CTRL_OACS_SEC_SUPP = 1 << 0,
- NVME_CTRL_OACS_DBBUF_SUPP = 1 << 7,
+ NVME_CTRL_OACS_DBBUF_SUPP = 1 << 8,
};
struct nvme_lbaf {