From a294c199455187d124b0760fa8f86c13cdaa4b25 Mon Sep 17 00:00:00 2001 From: Javier González Date: Fri, 30 Mar 2018 00:05:17 +0200 Subject: lightnvm: implement get log report chunk helpers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe --- drivers/lightnvm/core.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers/lightnvm') diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c index 77901bf17416..63171cdce270 100644 --- a/drivers/lightnvm/core.c +++ b/drivers/lightnvm/core.c @@ -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) -- cgit v1.2.3