lightnvm: pblk: implement get log report chunk

In preparation of pblk supporting 2.0, implement the get log report
chunk in pblk. Also, define the chunk states as given in the 2.0 spec.

Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

1 files changed, 13 insertions, 0 deletions

diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h
index da45efa09bb2..6e0859b9d4d2 100644
--- a/include/linux/lightnvm.h
+++ b/include/linux/lightnvm.h
@@ -232,6 +232,19 @@ struct nvm_addrf {
         u64     rsv_mask[2];
 };
 
+enum {
+        /* Chunk states */
+        NVM_CHK_ST_FREE =       1 << 0,
+        NVM_CHK_ST_CLOSED =     1 << 1,
+        NVM_CHK_ST_OPEN =       1 << 2,
+        NVM_CHK_ST_OFFLINE =    1 << 3,
+
+        /* Chunk types */
+        NVM_CHK_TP_W_SEQ =      1 << 0,
+        NVM_CHK_TP_W_RAN =      1 << 1,
+        NVM_CHK_TP_SZ_SPEC =    1 << 4,
+};
+
 /*
  * Note: The structure size is linked to nvme_nvm_chk_meta such that the same
  * buffer can be used when converting from little endian to cpu addressing.