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lightnvm: introduce max_phys_sects helper function
Target devices do not have access to the device driver operations. Introduce a helper function that exposes the max. number of physical sectors supported by the underlying device. Signed-off-by: Javier González <javier@cnexlabs.com> Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
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2 changed files with 9 additions and 0 deletions
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@ -203,6 +203,14 @@ int nvm_set_bb_tbl(struct nvm_dev *dev, struct ppa_addr *ppas, int nr_ppas,
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}
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EXPORT_SYMBOL(nvm_set_bb_tbl);
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int nvm_max_phys_sects(struct nvm_tgt_dev *tgt_dev)
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{
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struct nvm_dev *dev = tgt_dev->parent;
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return dev->ops->max_phys_sect;
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}
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EXPORT_SYMBOL(nvm_max_phys_sects);
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int nvm_submit_io(struct nvm_tgt_dev *tgt_dev, struct nvm_rq *rqd)
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{
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struct nvm_dev *dev = tgt_dev->parent;
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@ -529,6 +529,7 @@ extern void nvm_unregister(struct nvm_dev *);
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extern int nvm_set_bb_tbl(struct nvm_dev *dev, struct ppa_addr *ppas,
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int nr_ppas, int type);
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extern int nvm_max_phys_sects(struct nvm_tgt_dev *);
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extern int nvm_submit_io(struct nvm_tgt_dev *, struct nvm_rq *);
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extern void nvm_generic_to_addr_mode(struct nvm_dev *, struct nvm_rq *);
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extern void nvm_addr_to_generic_mode(struct nvm_dev *, struct nvm_rq *);
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