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authorMatias Bjørling <mb@lightnvm.io>2018-03-30 01:05:04 +0300
committerJens Axboe <axboe@kernel.dk>2018-03-30 02:29:09 +0300
commit89a09c5643e01f5e5d3c5f2e720053473a60a90b (patch)
tree4e3c80694912bc336479de619de61a0d3f5d8837 /drivers/lightnvm
parentaf569398c390810fca773c903a85b71dfd870bb0 (diff)
downloadlinux-89a09c5643e01f5e5d3c5f2e720053473a60a90b.tar.xz
lightnvm: remove nvm_dev_ops->max_phys_sect
The value of max_phys_sect is always static. Instead of defining it in the nvm_dev_ops structure, declare it as a global value. Signed-off-by: Matias Bjørling <mb@lightnvm.io> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/lightnvm')
-rw-r--r--drivers/lightnvm/core.c28
-rw-r--r--drivers/lightnvm/pblk-init.c9
-rw-r--r--drivers/lightnvm/pblk-recovery.c8
3 files changed, 13 insertions, 32 deletions
diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index a59ad29600c3..9704db219866 100644
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -407,7 +407,8 @@ static int nvm_create_tgt(struct nvm_dev *dev, struct nvm_ioctl_create *create)
tdisk->private_data = targetdata;
tqueue->queuedata = targetdata;
- blk_queue_max_hw_sectors(tqueue, 8 * dev->ops->max_phys_sect);
+ blk_queue_max_hw_sectors(tqueue,
+ (dev->geo.sec_size >> 9) * NVM_MAX_VLBA);
set_capacity(tdisk, tt->capacity(targetdata));
add_disk(tdisk);
@@ -719,7 +720,7 @@ int nvm_set_tgt_bb_tbl(struct nvm_tgt_dev *tgt_dev, struct ppa_addr *ppas,
struct nvm_rq rqd;
int ret;
- if (nr_ppas > dev->ops->max_phys_sect) {
+ if (nr_ppas > NVM_MAX_VLBA) {
pr_err("nvm: unable to update all blocks atomically\n");
return -EINVAL;
}
@@ -740,14 +741,6 @@ int nvm_set_tgt_bb_tbl(struct nvm_tgt_dev *tgt_dev, struct ppa_addr *ppas,
}
EXPORT_SYMBOL(nvm_set_tgt_bb_tbl);
-int nvm_max_phys_sects(struct nvm_tgt_dev *tgt_dev)
-{
- struct nvm_dev *dev = tgt_dev->parent;
-
- return dev->ops->max_phys_sect;
-}
-EXPORT_SYMBOL(nvm_max_phys_sects);
-
int nvm_submit_io(struct nvm_tgt_dev *tgt_dev, struct nvm_rq *rqd)
{
struct nvm_dev *dev = tgt_dev->parent;
@@ -965,17 +958,10 @@ int nvm_register(struct nvm_dev *dev)
if (!dev->q || !dev->ops)
return -EINVAL;
- if (dev->ops->max_phys_sect > 256) {
- pr_info("nvm: max sectors supported is 256.\n");
- return -EINVAL;
- }
-
- if (dev->ops->max_phys_sect > 1) {
- dev->dma_pool = dev->ops->create_dma_pool(dev, "ppalist");
- if (!dev->dma_pool) {
- pr_err("nvm: could not create dma pool\n");
- return -ENOMEM;
- }
+ dev->dma_pool = dev->ops->create_dma_pool(dev, "ppalist");
+ if (!dev->dma_pool) {
+ pr_err("nvm: could not create dma pool\n");
+ return -ENOMEM;
}
ret = nvm_init(dev);
diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c
index 141036bd6afa..43b835678f48 100644
--- a/drivers/lightnvm/pblk-init.c
+++ b/drivers/lightnvm/pblk-init.c
@@ -260,8 +260,7 @@ static int pblk_core_init(struct pblk *pblk)
return -ENOMEM;
/* Internal bios can be at most the sectors signaled by the device. */
- pblk->page_bio_pool = mempool_create_page_pool(nvm_max_phys_sects(dev),
- 0);
+ pblk->page_bio_pool = mempool_create_page_pool(NVM_MAX_VLBA, 0);
if (!pblk->page_bio_pool)
goto free_global_caches;
@@ -716,12 +715,12 @@ static int pblk_lines_init(struct pblk *pblk)
pblk->min_write_pgs = geo->sec_per_pl * (geo->sec_size / PAGE_SIZE);
max_write_ppas = pblk->min_write_pgs * geo->all_luns;
- pblk->max_write_pgs = (max_write_ppas < nvm_max_phys_sects(dev)) ?
- max_write_ppas : nvm_max_phys_sects(dev);
+ pblk->max_write_pgs = min_t(int, max_write_ppas, NVM_MAX_VLBA);
pblk_set_sec_per_write(pblk, pblk->min_write_pgs);
if (pblk->max_write_pgs > PBLK_MAX_REQ_ADDRS) {
- pr_err("pblk: cannot support device max_phys_sect\n");
+ pr_err("pblk: vector list too big(%u > %u)\n",
+ pblk->max_write_pgs, PBLK_MAX_REQ_ADDRS);
return -EINVAL;
}
diff --git a/drivers/lightnvm/pblk-recovery.c b/drivers/lightnvm/pblk-recovery.c
index e75a1af2eebe..aaab9a5c17cc 100644
--- a/drivers/lightnvm/pblk-recovery.c
+++ b/drivers/lightnvm/pblk-recovery.c
@@ -21,17 +21,15 @@ void pblk_submit_rec(struct work_struct *work)
struct pblk_rec_ctx *recovery =
container_of(work, struct pblk_rec_ctx, ws_rec);
struct pblk *pblk = recovery->pblk;
- struct nvm_tgt_dev *dev = pblk->dev;
struct nvm_rq *rqd = recovery->rqd;
struct pblk_c_ctx *c_ctx = nvm_rq_to_pdu(rqd);
- int max_secs = nvm_max_phys_sects(dev);
struct bio *bio;
unsigned int nr_rec_secs;
unsigned int pgs_read;
int ret;
nr_rec_secs = bitmap_weight((unsigned long int *)&rqd->ppa_status,
- max_secs);
+ NVM_MAX_VLBA);
bio = bio_alloc(GFP_KERNEL, nr_rec_secs);
@@ -74,8 +72,6 @@ int pblk_recov_setup_rq(struct pblk *pblk, struct pblk_c_ctx *c_ctx,
struct pblk_rec_ctx *recovery, u64 *comp_bits,
unsigned int comp)
{
- struct nvm_tgt_dev *dev = pblk->dev;
- int max_secs = nvm_max_phys_sects(dev);
struct nvm_rq *rec_rqd;
struct pblk_c_ctx *rec_ctx;
int nr_entries = c_ctx->nr_valid + c_ctx->nr_padded;
@@ -86,7 +82,7 @@ int pblk_recov_setup_rq(struct pblk *pblk, struct pblk_c_ctx *c_ctx,
/* Copy completion bitmap, but exclude the first X completed entries */
bitmap_shift_right((unsigned long int *)&rec_rqd->ppa_status,
(unsigned long int *)comp_bits,
- comp, max_secs);
+ comp, NVM_MAX_VLBA);
/* Save the context for the entries that need to be re-written and
* update current context with the completed entries.