diff options
Diffstat (limited to 'drivers/lightnvm')
| -rw-r--r-- | drivers/lightnvm/core.c | 115 |
1 files changed, 34 insertions, 81 deletions
diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c index a1a7a5a303bd..0842c85d3b84 100644 --- a/drivers/lightnvm/core.c +++ b/drivers/lightnvm/core.c @@ -50,11 +50,6 @@ struct nvm_area { sector_t end; /* end is excluded */ }; -enum { - TRANS_TGT_TO_DEV = 0x0, - TRANS_DEV_TO_TGT = 0x1, -}; - static struct nvm_target *nvm_find_target(struct nvm_dev *dev, const char *name) { struct nvm_target *tgt; @@ -428,38 +423,46 @@ static void nvm_map_to_tgt(struct nvm_tgt_dev *tgt_dev, struct ppa_addr *p) p->g.lun -= lun_roff; } -static void nvm_trans_rq(struct nvm_tgt_dev *tgt_dev, struct nvm_rq *rqd, - int flag) +static void nvm_ppa_tgt_to_dev(struct nvm_tgt_dev *tgt_dev, + struct ppa_addr *ppa_list, int nr_ppas) { int i; - if (rqd->nr_ppas == 1) { - if (flag == TRANS_TGT_TO_DEV) - nvm_map_to_dev(tgt_dev, &rqd->ppa_addr); - else - nvm_map_to_tgt(tgt_dev, &rqd->ppa_addr); - return; + for (i = 0; i < nr_ppas; i++) { + nvm_map_to_dev(tgt_dev, &ppa_list[i]); + ppa_list[i] = generic_to_dev_addr(tgt_dev, ppa_list[i]); } +} - for (i = 0; i < rqd->nr_ppas; i++) { - if (flag == TRANS_TGT_TO_DEV) - nvm_map_to_dev(tgt_dev, &rqd->ppa_list[i]); - else - nvm_map_to_tgt(tgt_dev, &rqd->ppa_list[i]); +static void nvm_ppa_dev_to_tgt(struct nvm_tgt_dev *tgt_dev, + struct ppa_addr *ppa_list, int nr_ppas) +{ + int i; + + for (i = 0; i < nr_ppas; i++) { + ppa_list[i] = dev_to_generic_addr(tgt_dev, ppa_list[i]); + nvm_map_to_tgt(tgt_dev, &ppa_list[i]); } } -static struct ppa_addr nvm_trans_ppa(struct nvm_tgt_dev *tgt_dev, - struct ppa_addr p, int dir) +static void nvm_rq_tgt_to_dev(struct nvm_tgt_dev *tgt_dev, struct nvm_rq *rqd) { - struct ppa_addr ppa = p; + if (rqd->nr_ppas == 1) { + nvm_ppa_tgt_to_dev(tgt_dev, &rqd->ppa_addr, 1); + return; + } - if (dir == TRANS_TGT_TO_DEV) - nvm_map_to_dev(tgt_dev, &ppa); - else - nvm_map_to_tgt(tgt_dev, &ppa); + nvm_ppa_tgt_to_dev(tgt_dev, rqd->ppa_list, rqd->nr_ppas); +} + +static void nvm_rq_dev_to_tgt(struct nvm_tgt_dev *tgt_dev, struct nvm_rq *rqd) +{ + if (rqd->nr_ppas == 1) { + nvm_ppa_dev_to_tgt(tgt_dev, &rqd->ppa_addr, 1); + return; + } - return ppa; + nvm_ppa_dev_to_tgt(tgt_dev, rqd->ppa_list, rqd->nr_ppas); } void nvm_part_to_tgt(struct nvm_dev *dev, sector_t *entries, @@ -564,26 +567,6 @@ static struct nvm_dev *nvm_find_nvm_dev(const char *name) return NULL; } -static void nvm_tgt_generic_to_addr_mode(struct nvm_tgt_dev *tgt_dev, - struct nvm_rq *rqd) -{ - struct nvm_dev *dev = tgt_dev->parent; - int i; - - if (rqd->nr_ppas > 1) { - for (i = 0; i < rqd->nr_ppas; i++) { - rqd->ppa_list[i] = nvm_trans_ppa(tgt_dev, - rqd->ppa_list[i], TRANS_TGT_TO_DEV); - rqd->ppa_list[i] = generic_to_dev_addr(dev, - rqd->ppa_list[i]); - } - } else { - rqd->ppa_addr = nvm_trans_ppa(tgt_dev, rqd->ppa_addr, - TRANS_TGT_TO_DEV); - rqd->ppa_addr = generic_to_dev_addr(dev, rqd->ppa_addr); - } -} - int nvm_set_tgt_bb_tbl(struct nvm_tgt_dev *tgt_dev, struct ppa_addr *ppas, int nr_ppas, int type) { @@ -599,7 +582,7 @@ int nvm_set_tgt_bb_tbl(struct nvm_tgt_dev *tgt_dev, struct ppa_addr *ppas, memset(&rqd, 0, sizeof(struct nvm_rq)); nvm_set_rqd_ppalist(dev, &rqd, ppas, nr_ppas, 1); - nvm_tgt_generic_to_addr_mode(tgt_dev, &rqd); + nvm_rq_tgt_to_dev(tgt_dev, &rqd); ret = dev->ops->set_bb_tbl(dev, &rqd.ppa_addr, rqd.nr_ppas, type); nvm_free_rqd_ppalist(dev, &rqd); @@ -627,8 +610,7 @@ int nvm_submit_io(struct nvm_tgt_dev *tgt_dev, struct nvm_rq *rqd) if (!dev->ops->submit_io) return -ENODEV; - /* Convert address space */ - nvm_generic_to_addr_mode(dev, rqd); + nvm_rq_tgt_to_dev(tgt_dev, rqd); rqd->dev = tgt_dev; return dev->ops->submit_io(dev, rqd); @@ -652,7 +634,7 @@ int nvm_erase_blk(struct nvm_tgt_dev *tgt_dev, struct ppa_addr *ppas, int flags) if (ret) return ret; - nvm_generic_to_addr_mode(dev, &rqd); + nvm_rq_tgt_to_dev(tgt_dev, &rqd); rqd.flags = flags; @@ -741,34 +723,6 @@ void nvm_put_area(struct nvm_tgt_dev *tgt_dev, sector_t begin) } EXPORT_SYMBOL(nvm_put_area); -void nvm_addr_to_generic_mode(struct nvm_dev *dev, struct nvm_rq *rqd) -{ - int i; - - if (rqd->nr_ppas > 1) { - for (i = 0; i < rqd->nr_ppas; i++) - rqd->ppa_list[i] = dev_to_generic_addr(dev, - rqd->ppa_list[i]); - } else { - rqd->ppa_addr = dev_to_generic_addr(dev, rqd->ppa_addr); - } -} -EXPORT_SYMBOL(nvm_addr_to_generic_mode); - -void nvm_generic_to_addr_mode(struct nvm_dev *dev, struct nvm_rq *rqd) -{ - int i; - - if (rqd->nr_ppas > 1) { - for (i = 0; i < rqd->nr_ppas; i++) - rqd->ppa_list[i] = generic_to_dev_addr(dev, - rqd->ppa_list[i]); - } else { - rqd->ppa_addr = generic_to_dev_addr(dev, rqd->ppa_addr); - } -} -EXPORT_SYMBOL(nvm_generic_to_addr_mode); - int nvm_set_rqd_ppalist(struct nvm_dev *dev, struct nvm_rq *rqd, const struct ppa_addr *ppas, int nr_ppas, int vblk) { @@ -826,7 +780,7 @@ void nvm_end_io(struct nvm_rq *rqd, int error) /* Convert address space */ if (tgt_dev) - nvm_trans_rq(tgt_dev, rqd, TRANS_DEV_TO_TGT); + nvm_rq_dev_to_tgt(tgt_dev, rqd); rqd->error = error; ins->tt->end_io(rqd); @@ -874,8 +828,7 @@ int nvm_get_tgt_bb_tbl(struct nvm_tgt_dev *tgt_dev, struct ppa_addr ppa, { struct nvm_dev *dev = tgt_dev->parent; - ppa = nvm_trans_ppa(tgt_dev, ppa, TRANS_TGT_TO_DEV); - ppa = generic_to_dev_addr(dev, ppa); + nvm_ppa_tgt_to_dev(tgt_dev, &ppa, 1); return dev->ops->get_bb_tbl(dev, ppa, blks); } |