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authorChangpeng Liu <changpeng.liu@intel.com>2017-08-31 06:22:49 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-09-07 09:37:16 +0300
commitbdacc5fcf4f905e732fb3420e20602da333285e9 (patch)
tree5035dce8392d46b0d0524713df0fe4f9656b9930
parentc6d2779d8f0d834e552ed5f022e96137b768315c (diff)
downloadlinux-bdacc5fcf4f905e732fb3420e20602da333285e9.tar.xz
nvme: fix the definition of the doorbell buffer config support bit
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@intel.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Max Gurtovoy <maxg@mellanox.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de> Fixes: f9f38e33 ("nvme: improve performance for virtual NVMe devices") Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--include/linux/nvme.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index b625bacf37ef..f4f9481a0c8a 100644
--- 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 {