lightnvm: comments on constants

It is not obvious what NVM_IO_* and NVM_BLK_T_* are used for. Make sure
to comment them appropriately as the other constants.

Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>

diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h
index c6916ae..935ef38 100644 (file)
--- a/include/linux/lightnvm.h
+++ b/include/linux/lightnvm.h
@@ -50,9 +50,16 @@ enum {
        NVM_IO_DUAL_ACCESS      = 0x1,
        NVM_IO_QUAD_ACCESS      = 0x2,
 
+       /* NAND Access Modes */
        NVM_IO_SUSPEND          = 0x80,
        NVM_IO_SLC_MODE         = 0x100,
        NVM_IO_SCRAMBLE_DISABLE = 0x200,
+
+       /* Block Types */
+       NVM_BLK_T_FREE          = 0x0,
+       NVM_BLK_T_BAD           = 0x1,
+       NVM_BLK_T_DEV           = 0x2,
+       NVM_BLK_T_HOST          = 0x4,
 };
 
 struct nvm_id_group {