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lightnvm: pblk: implement get log report chunk

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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>
This commit is contained in:
Javier González 2018-03-30 00:05:20 +02:00 • committed by Jens Axboe
parent bb845ae45c
commit 32ef9412c1
4 changed files with 298 additions and 82 deletions
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13
include/linux/lightnvm.h
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@ -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.