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| author | Matias Bjørling <m@bjorling.me> | 2016-05-06 20:02:57 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-05-06 12:51:10 -0600 |
| commit | 4891d120b9cd419f4350b11e1231083745dcdc8b (patch) | |
| tree | c5da30d99e92644a30cdf2d620dc56cbace69add /drivers/lightnvm | |
| parent | 1145e6351a9fefe0965df4c6dba2a04156dc47d2 (diff) | |
| download | linux-stable-4891d120b9cd419f4350b11e1231083745dcdc8b.tar.gz linux-stable-4891d120b9cd419f4350b11e1231083745dcdc8b.tar.bz2 linux-stable-4891d120b9cd419f4350b11e1231083745dcdc8b.zip | |
lightnvm: add fpg_size and pfpg_size to struct nvm_dev
The flash page size (fpg) and size across planes (pfpg) are convenient
to know when allocating buffer sizes. This has previously been a
calculated in various places. Replace with the pre-calculated values.
Reviewed by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/lightnvm')
| -rw-r--r-- | drivers/lightnvm/core.c | 2 | ||||
| -rw-r--r-- | drivers/lightnvm/sysblk.c | 17 |
2 files changed, 9 insertions, 10 deletions
diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c index f4e04a505859..652b8c7673ee 100644 --- a/drivers/lightnvm/core.c +++ b/drivers/lightnvm/core.c @@ -476,6 +476,8 @@ static int nvm_core_init(struct nvm_dev *dev) dev->pgs_per_blk = grp->num_pg; dev->blks_per_lun = grp->num_blk; dev->nr_planes = grp->num_pln; + dev->fpg_size = grp->fpg_sz; + dev->pfpg_size = grp->fpg_sz * grp->num_pln; dev->sec_size = grp->csecs; dev->oob_size = grp->sos; dev->sec_per_pg = grp->fpg_sz / grp->csecs; diff --git a/drivers/lightnvm/sysblk.c b/drivers/lightnvm/sysblk.c index b1e1404e6951..b6971f8ae3c0 100644 --- a/drivers/lightnvm/sysblk.c +++ b/drivers/lightnvm/sysblk.c @@ -154,13 +154,12 @@ static int nvm_scan_block(struct nvm_dev *dev, struct ppa_addr *ppa, struct nvm_system_block *sblk) { struct nvm_system_block *cur; - int pg, cursz, ret, found = 0; + int pg, ret, found = 0; /* the full buffer for a flash page is allocated. Only the first of it * contains the system block information */ - cursz = dev->sec_size * dev->sec_per_pg * dev->nr_planes; - cur = kmalloc(cursz, GFP_KERNEL); + cur = kmalloc(dev->pfpg_size, GFP_KERNEL); if (!cur) return -ENOMEM; @@ -169,7 +168,7 @@ static int nvm_scan_block(struct nvm_dev *dev, struct ppa_addr *ppa, ppa->g.pg = ppa_to_slc(dev, pg); ret = nvm_submit_ppa(dev, ppa, 1, NVM_OP_PREAD, NVM_IO_SLC_MODE, - cur, cursz); + cur, dev->pfpg_size); if (ret) { if (ret == NVM_RSP_ERR_EMPTYPAGE) { pr_debug("nvm: sysblk scan empty ppa (%u %u %u %u)\n", @@ -272,14 +271,12 @@ static int nvm_write_and_verify(struct nvm_dev *dev, struct nvm_sb_info *info, { struct nvm_system_block nvmsb; void *buf; - int i, sect, ret = 0, bufsz; + int i, sect, ret = 0; struct ppa_addr *ppas; nvm_cpu_to_sysblk(&nvmsb, info); - /* buffer for flash page */ - bufsz = dev->sec_size * dev->sec_per_pg * dev->nr_planes; - buf = kzalloc(bufsz, GFP_KERNEL); + buf = kzalloc(dev->pfpg_size, GFP_KERNEL); if (!buf) return -ENOMEM; memcpy(buf, &nvmsb, sizeof(struct nvm_system_block)); @@ -309,7 +306,7 @@ static int nvm_write_and_verify(struct nvm_dev *dev, struct nvm_sb_info *info, } ret = nvm_submit_ppa(dev, ppas, dev->sec_per_pg, NVM_OP_PWRITE, - NVM_IO_SLC_MODE, buf, bufsz); + NVM_IO_SLC_MODE, buf, dev->pfpg_size); if (ret) { pr_err("nvm: sysblk failed program (%u %u %u)\n", ppas[0].g.ch, @@ -319,7 +316,7 @@ static int nvm_write_and_verify(struct nvm_dev *dev, struct nvm_sb_info *info, } ret = nvm_submit_ppa(dev, ppas, dev->sec_per_pg, NVM_OP_PREAD, - NVM_IO_SLC_MODE, buf, bufsz); + NVM_IO_SLC_MODE, buf, dev->pfpg_size); if (ret) { pr_err("nvm: sysblk failed read (%u %u %u)\n", ppas[0].g.ch, |