xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

lightnvm: implement get log report chunk helpers

Browse Source 
The 2.0 spec provides a report chunk log page that can be retrieved
using the stangard nvme get log page. This replaces the dedicated
get/put bad block table in 1.2.

This patch implements the helper functions to allow targets retrieve the
chunk metadata using get log page. It makes nvme_get_log_ext available
outside of nvme core so that we can use it form lightnvm.

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 00:05:17 +02:00
committed by Jens Axboe
parent 7100d50a7e
commit a294c19945
4 changed files with 111 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/lightnvm/core.c
View File

@@ -712,6 +712,17 @@ static void nvm_free_rqd_ppalist(struct nvm_tgt_dev *tgt_dev,
nvm_dev_dma_free(tgt_dev->parent, rqd->ppa_list, rqd->dma_ppa_list);
}
int nvm_get_chunk_meta(struct nvm_tgt_dev *tgt_dev, struct nvm_chk_meta *meta,
struct ppa_addr ppa, int nchks)
{
struct nvm_dev *dev = tgt_dev->parent;
nvm_ppa_tgt_to_dev(tgt_dev, &ppa, 1);
return dev->ops->get_chk_meta(tgt_dev->parent, meta,
(sector_t)ppa.ppa, nchks);
}
EXPORT_SYMBOL(nvm_get_chunk_meta);
int nvm_set_tgt_bb_tbl(struct nvm_tgt_dev *tgt_dev, struct ppa_addr *ppas,
int nr_ppas, int type)