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Commit 223694b9 authored by Changpeng Liu's avatar Changpeng Liu Committed by Christoph Hellwig
Browse files

nvme: fix the definition of the doorbell buffer config support bit 



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: default avatarChangpeng Liu <changpeng.liu@intel.com>
Reviewed-by: default avatarSagi Grimberg <sagi@grimberg.me>
Reviewed-by: default avatarMax Gurtovoy <maxg@mellanox.com>
Reviewed-by: default avatarJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Fixes: f9f38e33 ("nvme: improve performance for virtual NVMe devices")
Cc: stable@vger.kernel.org
parent 4033f35d

include/linux/nvme.h

+1 −1
Original line number Diff line number Diff line
@@ -254,7 +254,7 @@ enum { 
	NVME_CTRL_VWC_PRESENT			= 1 << 0,

	NVME_CTRL_OACS_SEC_SUPP                 = 1 << 0,

	NVME_CTRL_OACS_DIRECTIVES		= 1 << 5,

	NVME_CTRL_OACS_DBBUF_SUPP		= 1 << 7,

	NVME_CTRL_OACS_DBBUF_SUPP		= 1 << 8,

};



struct nvme_lbaf {