nvme: add a local nvme.h header

Add a new drivers/block/nvme.h which contains all the driver internal
interface.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

1 files changed, 0 insertions, 114 deletions

diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index 7725b4c8b718..364cb9adbbbc 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -16,9 +16,6 @@
 #define _LINUX_NVME_H
 
 #include <uapi/linux/nvme.h>
-#include <linux/pci.h>
-#include <linux/kref.h>
-#include <linux/blk-mq.h>
 
 struct nvme_bar {
 	__u64			cap;	/* Controller Capabilities */
@@ -76,115 +73,4 @@ enum {
 	NVME_CSTS_SHST_MASK	= 3 << 2,
 };
 
-extern unsigned char nvme_io_timeout;
-#define NVME_IO_TIMEOUT	(nvme_io_timeout * HZ)
-
-/*
- * Represents an NVM Express device.  Each nvme_dev is a PCI function.
- */
-struct nvme_dev {
-	struct list_head node;
-	struct nvme_queue **queues;
-	struct request_queue *admin_q;
-	struct blk_mq_tag_set tagset;
-	struct blk_mq_tag_set admin_tagset;
-	u32 __iomem *dbs;
-	struct device *dev;
-	struct dma_pool *prp_page_pool;
-	struct dma_pool *prp_small_pool;
-	int instance;
-	unsigned queue_count;
-	unsigned online_queues;
-	unsigned max_qid;
-	int q_depth;
-	u32 db_stride;
-	u32 ctrl_config;
-	struct msix_entry *entry;
-	struct nvme_bar __iomem *bar;
-	struct list_head namespaces;
-	struct kref kref;
-	struct device *device;
-	struct work_struct reset_work;
-	struct work_struct probe_work;
-	struct work_struct scan_work;
-	char name[12];
-	char serial[20];
-	char model[40];
-	char firmware_rev[8];
-	bool subsystem;
-	u32 max_hw_sectors;
-	u32 stripe_size;
-	u32 page_size;
-	void __iomem *cmb;
-	dma_addr_t cmb_dma_addr;
-	u64 cmb_size;
-	u32 cmbsz;
-	u16 oncs;
-	u16 abort_limit;
-	u8 event_limit;
-	u8 vwc;
-};
-
-/*
- * An NVM Express namespace is equivalent to a SCSI LUN
- */
-struct nvme_ns {
-	struct list_head list;
-
-	struct nvme_dev *dev;
-	struct request_queue *queue;
-	struct gendisk *disk;
-	struct kref kref;
-
-	unsigned ns_id;
-	int lba_shift;
-	u16 ms;
-	bool ext;
-	u8 pi_type;
-	u64 mode_select_num_blocks;
-	u32 mode_select_block_len;
-};
-
-/*
- * The nvme_iod describes the data in an I/O, including the list of PRP
- * entries.  You can't see it in this data structure because C doesn't let
- * me express that.  Use nvme_alloc_iod to ensure there's enough space
- * allocated to store the PRP list.
- */
-struct nvme_iod {
-	unsigned long private;	/* For the use of the submitter of the I/O */
-	int npages;		/* In the PRP list. 0 means small pool in use */
-	int offset;		/* Of PRP list */
-	int nents;		/* Used in scatterlist */
-	int length;		/* Of data, in bytes */
-	dma_addr_t first_dma;
-	struct scatterlist meta_sg[1]; /* metadata requires single contiguous buffer */
-	struct scatterlist sg[0];
-};
-
-static inline u64 nvme_block_nr(struct nvme_ns *ns, sector_t sector)
-{
-	return (sector >> (ns->lba_shift - 9));
-}
-
-int nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,
-		void *buf, unsigned bufflen);
-int __nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,
-		void *buffer, void __user *ubuffer, unsigned bufflen,
-		u32 *result, unsigned timeout);
-int nvme_identify_ctrl(struct nvme_dev *dev, struct nvme_id_ctrl **id);
-int nvme_identify_ns(struct nvme_dev *dev, unsigned nsid,
-		struct nvme_id_ns **id);
-int nvme_get_log_page(struct nvme_dev *dev, struct nvme_smart_log **log);
-int nvme_get_features(struct nvme_dev *dev, unsigned fid, unsigned nsid,
-			dma_addr_t dma_addr, u32 *result);
-int nvme_set_features(struct nvme_dev *dev, unsigned fid, unsigned dword11,
-			dma_addr_t dma_addr, u32 *result);
-
-struct sg_io_hdr;
-
-int nvme_sg_io(struct nvme_ns *ns, struct sg_io_hdr __user *u_hdr);
-int nvme_sg_io32(struct nvme_ns *ns, unsigned long arg);
-int nvme_sg_get_version_num(int __user *ip);
-
 #endif /* _LINUX_NVME_H */