From: Christoph Hellwig <hch@lst.de>
Date: Mon, 9 Jan 2017 15:36:28 +0100
Subject: nvme.h: add struct nvme_host_mem_buf_desc and HMB flags
Patch-mainline: v4.13-rc1
Git-commit: 39673e1995381b09a63cc7e9d0aea7cf871cb359
References: FATE#323952, FATE#322506
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
---
include/linux/nvme.h | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index 894abc1dd14c..cb2e08238779 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -587,6 +587,11 @@ struct nvme_feat_auto_pst {
__le64 entries[32];
};
+enum {
+ NVME_HOST_MEM_ENABLE = (1 << 0),
+ NVME_HOST_MEM_RETURN = (1 << 1),
+};
+
/* Admin commands */
enum nvme_admin_opcode {
@@ -671,6 +676,12 @@ struct nvme_features {
__u32 rsvd12[4];
};
+struct nvme_host_mem_buf_desc {
+ __le64 addr;
+ __le32 size;
+ __u32 rsvd;
+};
+
struct nvme_create_cq {
__u8 opcode;
__u8 flags;
--
2.12.3