nvme: Get rid of the global variable nvme_info

At present the NVMe uclass driver uses a global variable nvme_info
to store global information like namespace id, and NVMe controller
driver's priv struct has a blk_dev_start that is used to calculate
the namespace id based on the global information from nvme_info.

This is not a good design in the DM world and can be replaced with
the following changes:

- Encode the namespace id in the NVMe block device name during
  the NVMe uclass post probe
- Extract the namespace id from the device name during the NVMe
  block device probe
- Let BLK uclass calculate the devnum for us by passing -1 to
  blk_create_devicef() as the devnum

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

1 files changed, 0 insertions, 9 deletions

diff --git a/drivers/nvme/nvme.h b/drivers/nvme/nvme.h
index f0fa6399bf..67bf6e187f 100644
--- a/drivers/nvme/nvme.h
+++ b/drivers/nvme/nvme.h
@@ -628,13 +628,6 @@ struct nvme_dev {
 	u64 *prp_pool;
 	u32 prp_entry_num;
 	u32 nn;
-	u32 blk_dev_start;
-};
-
-struct nvme_info {
-	int ns_num;	/*the number of nvme namespaces*/
-	int ndev_num;	/*the number of nvme devices*/
-	struct list_head dev_list;
 };
 
 /*
@@ -652,6 +645,4 @@ struct nvme_ns {
 	u32 mode_select_block_len;
 };
 
-extern struct nvme_info *nvme_info;
-
 #endif /* __DRIVER_NVME_H__ */