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-rw-r--r--drivers/nvme/target/nvmet.h28
1 files changed, 26 insertions, 2 deletions
diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h
index 15fd84ab21f8..2d09afcfe505 100644
--- a/drivers/nvme/target/nvmet.h
+++ b/drivers/nvme/target/nvmet.h
@@ -43,6 +43,7 @@ struct nvmet_ns {
struct list_head dev_link;
struct percpu_ref ref;
struct block_device *bdev;
+ struct file *file;
u32 nsid;
u32 blksize_shift;
loff_t size;
@@ -57,6 +58,8 @@ struct nvmet_ns {
struct config_group group;
struct completion disable_done;
+ mempool_t *bvec_pool;
+ struct kmem_cache *bvec_cache;
};
static inline struct nvmet_ns *to_nvmet_ns(struct config_item *item)
@@ -222,8 +225,18 @@ struct nvmet_req {
struct nvmet_cq *cq;
struct nvmet_ns *ns;
struct scatterlist *sg;
- struct bio inline_bio;
struct bio_vec inline_bvec[NVMET_MAX_INLINE_BIOVEC];
+ union {
+ struct {
+ struct bio inline_bio;
+ } b;
+ struct {
+ bool mpool_alloc;
+ struct kiocb iocb;
+ struct bio_vec *bvec;
+ struct work_struct work;
+ } f;
+ };
int sg_cnt;
/* data length as parsed from the command: */
size_t data_len;
@@ -263,7 +276,8 @@ struct nvmet_async_event {
};
u16 nvmet_parse_connect_cmd(struct nvmet_req *req);
-u16 nvmet_parse_io_cmd(struct nvmet_req *req);
+u16 nvmet_bdev_parse_io_cmd(struct nvmet_req *req);
+u16 nvmet_file_parse_io_cmd(struct nvmet_req *req);
u16 nvmet_parse_admin_cmd(struct nvmet_req *req);
u16 nvmet_parse_discovery_cmd(struct nvmet_req *req);
u16 nvmet_parse_fabrics_cmd(struct nvmet_req *req);
@@ -338,4 +352,14 @@ extern struct rw_semaphore nvmet_config_sem;
bool nvmet_host_allowed(struct nvmet_req *req, struct nvmet_subsys *subsys,
const char *hostnqn);
+int nvmet_bdev_ns_enable(struct nvmet_ns *ns);
+int nvmet_file_ns_enable(struct nvmet_ns *ns);
+void nvmet_bdev_ns_disable(struct nvmet_ns *ns);
+void nvmet_file_ns_disable(struct nvmet_ns *ns);
+
+static inline u32 nvmet_rw_len(struct nvmet_req *req)
+{
+ return ((u32)le16_to_cpu(req->cmd->rw.length) + 1) <<
+ req->ns->blksize_shift;
+}
#endif /* _NVMET_H */