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path: root/drivers/lightnvm/core.c
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Diffstat (limited to 'drivers/lightnvm/core.c')
-rw-r--r--drivers/lightnvm/core.c462
1 files changed, 168 insertions, 294 deletions
diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index 83249b43dd06..dcc9e621e651 100644
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -45,12 +45,6 @@ struct nvm_dev_map {
int nr_chnls;
};
-struct nvm_area {
- struct list_head list;
- sector_t begin;
- sector_t end; /* end is excluded */
-};
-
static struct nvm_target *nvm_find_target(struct nvm_dev *dev, const char *name)
{
struct nvm_target *tgt;
@@ -62,6 +56,30 @@ static struct nvm_target *nvm_find_target(struct nvm_dev *dev, const char *name)
return NULL;
}
+static bool nvm_target_exists(const char *name)
+{
+ struct nvm_dev *dev;
+ struct nvm_target *tgt;
+ bool ret = false;
+
+ down_write(&nvm_lock);
+ list_for_each_entry(dev, &nvm_devices, devices) {
+ mutex_lock(&dev->mlock);
+ list_for_each_entry(tgt, &dev->targets, list) {
+ if (!strcmp(name, tgt->disk->disk_name)) {
+ ret = true;
+ mutex_unlock(&dev->mlock);
+ goto out;
+ }
+ }
+ mutex_unlock(&dev->mlock);
+ }
+
+out:
+ up_write(&nvm_lock);
+ return ret;
+}
+
static int nvm_reserve_luns(struct nvm_dev *dev, int lun_begin, int lun_end)
{
int i;
@@ -104,7 +122,7 @@ static void nvm_remove_tgt_dev(struct nvm_tgt_dev *tgt_dev, int clear)
if (clear) {
for (j = 0; j < ch_map->nr_luns; j++) {
int lun = j + lun_offs[j];
- int lunid = (ch * dev->geo.luns_per_chnl) + lun;
+ int lunid = (ch * dev->geo.nr_luns) + lun;
WARN_ON(!test_and_clear_bit(lunid,
dev->lun_map));
@@ -122,7 +140,8 @@ static void nvm_remove_tgt_dev(struct nvm_tgt_dev *tgt_dev, int clear)
}
static struct nvm_tgt_dev *nvm_create_tgt_dev(struct nvm_dev *dev,
- int lun_begin, int lun_end)
+ u16 lun_begin, u16 lun_end,
+ u16 op)
{
struct nvm_tgt_dev *tgt_dev = NULL;
struct nvm_dev_map *dev_rmap = dev->rmap;
@@ -130,10 +149,10 @@ static struct nvm_tgt_dev *nvm_create_tgt_dev(struct nvm_dev *dev,
struct ppa_addr *luns;
int nr_luns = lun_end - lun_begin + 1;
int luns_left = nr_luns;
- int nr_chnls = nr_luns / dev->geo.luns_per_chnl;
- int nr_chnls_mod = nr_luns % dev->geo.luns_per_chnl;
- int bch = lun_begin / dev->geo.luns_per_chnl;
- int blun = lun_begin % dev->geo.luns_per_chnl;
+ int nr_chnls = nr_luns / dev->geo.nr_luns;
+ int nr_chnls_mod = nr_luns % dev->geo.nr_luns;
+ int bch = lun_begin / dev->geo.nr_luns;
+ int blun = lun_begin % dev->geo.nr_luns;
int lunid = 0;
int lun_balanced = 1;
int prev_nr_luns;
@@ -154,15 +173,15 @@ static struct nvm_tgt_dev *nvm_create_tgt_dev(struct nvm_dev *dev,
if (!luns)
goto err_luns;
- prev_nr_luns = (luns_left > dev->geo.luns_per_chnl) ?
- dev->geo.luns_per_chnl : luns_left;
+ prev_nr_luns = (luns_left > dev->geo.nr_luns) ?
+ dev->geo.nr_luns : luns_left;
for (i = 0; i < nr_chnls; i++) {
struct nvm_ch_map *ch_rmap = &dev_rmap->chnls[i + bch];
int *lun_roffs = ch_rmap->lun_offs;
struct nvm_ch_map *ch_map = &dev_map->chnls[i];
int *lun_offs;
- int luns_in_chnl = (luns_left > dev->geo.luns_per_chnl) ?
- dev->geo.luns_per_chnl : luns_left;
+ int luns_in_chnl = (luns_left > dev->geo.nr_luns) ?
+ dev->geo.nr_luns : luns_left;
if (lun_balanced && prev_nr_luns != luns_in_chnl)
lun_balanced = 0;
@@ -199,8 +218,9 @@ static struct nvm_tgt_dev *nvm_create_tgt_dev(struct nvm_dev *dev,
memcpy(&tgt_dev->geo, &dev->geo, sizeof(struct nvm_geo));
/* Target device only owns a portion of the physical device */
tgt_dev->geo.nr_chnls = nr_chnls;
- tgt_dev->geo.nr_luns = nr_luns;
- tgt_dev->geo.luns_per_chnl = (lun_balanced) ? prev_nr_luns : -1;
+ tgt_dev->geo.all_luns = nr_luns;
+ tgt_dev->geo.nr_luns = (lun_balanced) ? prev_nr_luns : -1;
+ tgt_dev->geo.op = op;
tgt_dev->total_secs = nr_luns * tgt_dev->geo.sec_per_lun;
tgt_dev->q = dev->q;
tgt_dev->map = dev_map;
@@ -226,27 +246,79 @@ static const struct block_device_operations nvm_fops = {
.owner = THIS_MODULE,
};
-static struct nvm_tgt_type *nvm_find_target_type(const char *name, int lock)
+static struct nvm_tgt_type *__nvm_find_target_type(const char *name)
{
- struct nvm_tgt_type *tmp, *tt = NULL;
+ struct nvm_tgt_type *tt;
- if (lock)
- down_write(&nvm_tgtt_lock);
+ list_for_each_entry(tt, &nvm_tgt_types, list)
+ if (!strcmp(name, tt->name))
+ return tt;
- list_for_each_entry(tmp, &nvm_tgt_types, list)
- if (!strcmp(name, tmp->name)) {
- tt = tmp;
- break;
- }
+ return NULL;
+}
+
+static struct nvm_tgt_type *nvm_find_target_type(const char *name)
+{
+ struct nvm_tgt_type *tt;
+
+ down_write(&nvm_tgtt_lock);
+ tt = __nvm_find_target_type(name);
+ up_write(&nvm_tgtt_lock);
- if (lock)
- up_write(&nvm_tgtt_lock);
return tt;
}
+static int nvm_config_check_luns(struct nvm_geo *geo, int lun_begin,
+ int lun_end)
+{
+ if (lun_begin > lun_end || lun_end >= geo->all_luns) {
+ pr_err("nvm: lun out of bound (%u:%u > %u)\n",
+ lun_begin, lun_end, geo->all_luns - 1);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int __nvm_config_simple(struct nvm_dev *dev,
+ struct nvm_ioctl_create_simple *s)
+{
+ struct nvm_geo *geo = &dev->geo;
+
+ if (s->lun_begin == -1 && s->lun_end == -1) {
+ s->lun_begin = 0;
+ s->lun_end = geo->all_luns - 1;
+ }
+
+ return nvm_config_check_luns(geo, s->lun_begin, s->lun_end);
+}
+
+static int __nvm_config_extended(struct nvm_dev *dev,
+ struct nvm_ioctl_create_extended *e)
+{
+ struct nvm_geo *geo = &dev->geo;
+
+ if (e->lun_begin == 0xFFFF && e->lun_end == 0xFFFF) {
+ e->lun_begin = 0;
+ e->lun_end = dev->geo.all_luns - 1;
+ }
+
+ /* op not set falls into target's default */
+ if (e->op == 0xFFFF)
+ e->op = NVM_TARGET_DEFAULT_OP;
+
+ if (e->op < NVM_TARGET_MIN_OP ||
+ e->op > NVM_TARGET_MAX_OP) {
+ pr_err("nvm: invalid over provisioning value\n");
+ return -EINVAL;
+ }
+
+ return nvm_config_check_luns(geo, e->lun_begin, e->lun_end);
+}
+
static int nvm_create_tgt(struct nvm_dev *dev, struct nvm_ioctl_create *create)
{
- struct nvm_ioctl_create_simple *s = &create->conf.s;
+ struct nvm_ioctl_create_extended e;
struct request_queue *tqueue;
struct gendisk *tdisk;
struct nvm_tgt_type *tt;
@@ -255,22 +327,41 @@ static int nvm_create_tgt(struct nvm_dev *dev, struct nvm_ioctl_create *create)
void *targetdata;
int ret;
- tt = nvm_find_target_type(create->tgttype, 1);
+ switch (create->conf.type) {
+ case NVM_CONFIG_TYPE_SIMPLE:
+ ret = __nvm_config_simple(dev, &create->conf.s);
+ if (ret)
+ return ret;
+
+ e.lun_begin = create->conf.s.lun_begin;
+ e.lun_end = create->conf.s.lun_end;
+ e.op = NVM_TARGET_DEFAULT_OP;
+ break;
+ case NVM_CONFIG_TYPE_EXTENDED:
+ ret = __nvm_config_extended(dev, &create->conf.e);
+ if (ret)
+ return ret;
+
+ e = create->conf.e;
+ break;
+ default:
+ pr_err("nvm: config type not valid\n");
+ return -EINVAL;
+ }
+
+ tt = nvm_find_target_type(create->tgttype);
if (!tt) {
pr_err("nvm: target type %s not found\n", create->tgttype);
return -EINVAL;
}
- mutex_lock(&dev->mlock);
- t = nvm_find_target(dev, create->tgtname);
- if (t) {
- pr_err("nvm: target name already exists.\n");
- mutex_unlock(&dev->mlock);
+ if (nvm_target_exists(create->tgtname)) {
+ pr_err("nvm: target name already exists (%s)\n",
+ create->tgtname);
return -EINVAL;
}
- mutex_unlock(&dev->mlock);
- ret = nvm_reserve_luns(dev, s->lun_begin, s->lun_end);
+ ret = nvm_reserve_luns(dev, e.lun_begin, e.lun_end);
if (ret)
return ret;
@@ -280,7 +371,7 @@ static int nvm_create_tgt(struct nvm_dev *dev, struct nvm_ioctl_create *create)
goto err_reserve;
}
- tgt_dev = nvm_create_tgt_dev(dev, s->lun_begin, s->lun_end);
+ tgt_dev = nvm_create_tgt_dev(dev, e.lun_begin, e.lun_end, e.op);
if (!tgt_dev) {
pr_err("nvm: could not create target device\n");
ret = -ENOMEM;
@@ -350,7 +441,7 @@ err_dev:
err_t:
kfree(t);
err_reserve:
- nvm_release_luns_err(dev, s->lun_begin, s->lun_end);
+ nvm_release_luns_err(dev, e.lun_begin, e.lun_end);
return ret;
}
@@ -420,7 +511,7 @@ static int nvm_register_map(struct nvm_dev *dev)
for (i = 0; i < dev->geo.nr_chnls; i++) {
struct nvm_ch_map *ch_rmap;
int *lun_roffs;
- int luns_in_chnl = dev->geo.luns_per_chnl;
+ int luns_in_chnl = dev->geo.nr_luns;
ch_rmap = &rmap->chnls[i];
@@ -524,41 +615,12 @@ static void nvm_rq_dev_to_tgt(struct nvm_tgt_dev *tgt_dev, struct nvm_rq *rqd)
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,
- int len)
-{
- struct nvm_geo *geo = &dev->geo;
- struct nvm_dev_map *dev_rmap = dev->rmap;
- u64 i;
-
- for (i = 0; i < len; i++) {
- struct nvm_ch_map *ch_rmap;
- int *lun_roffs;
- struct ppa_addr gaddr;
- u64 pba = le64_to_cpu(entries[i]);
- u64 diff;
-
- if (!pba)
- continue;
-
- gaddr = linear_to_generic_addr(geo, pba);
- ch_rmap = &dev_rmap->chnls[gaddr.g.ch];
- lun_roffs = ch_rmap->lun_offs;
-
- diff = ((ch_rmap->ch_off * geo->luns_per_chnl) +
- (lun_roffs[gaddr.g.lun])) * geo->sec_per_lun;
-
- entries[i] -= cpu_to_le64(diff);
- }
-}
-EXPORT_SYMBOL(nvm_part_to_tgt);
-
int nvm_register_tgt_type(struct nvm_tgt_type *tt)
{
int ret = 0;
down_write(&nvm_tgtt_lock);
- if (nvm_find_target_type(tt->name, 0))
+ if (__nvm_find_target_type(tt->name))
ret = -EEXIST;
else
list_add(&tt->list, &nvm_tgt_types);
@@ -726,112 +788,6 @@ int nvm_submit_io_sync(struct nvm_tgt_dev *tgt_dev, struct nvm_rq *rqd)
}
EXPORT_SYMBOL(nvm_submit_io_sync);
-int nvm_erase_sync(struct nvm_tgt_dev *tgt_dev, struct ppa_addr *ppas,
- int nr_ppas)
-{
- struct nvm_geo *geo = &tgt_dev->geo;
- struct nvm_rq rqd;
- int ret;
-
- memset(&rqd, 0, sizeof(struct nvm_rq));
-
- rqd.opcode = NVM_OP_ERASE;
- rqd.flags = geo->plane_mode >> 1;
-
- ret = nvm_set_rqd_ppalist(tgt_dev, &rqd, ppas, nr_ppas);
- if (ret)
- return ret;
-
- ret = nvm_submit_io_sync(tgt_dev, &rqd);
- if (ret) {
- pr_err("rrpr: erase I/O submission failed: %d\n", ret);
- goto free_ppa_list;
- }
-
-free_ppa_list:
- nvm_free_rqd_ppalist(tgt_dev, &rqd);
-
- return ret;
-}
-EXPORT_SYMBOL(nvm_erase_sync);
-
-int nvm_get_l2p_tbl(struct nvm_tgt_dev *tgt_dev, u64 slba, u32 nlb,
- nvm_l2p_update_fn *update_l2p, void *priv)
-{
- struct nvm_dev *dev = tgt_dev->parent;
-
- if (!dev->ops->get_l2p_tbl)
- return 0;
-
- return dev->ops->get_l2p_tbl(dev, slba, nlb, update_l2p, priv);
-}
-EXPORT_SYMBOL(nvm_get_l2p_tbl);
-
-int nvm_get_area(struct nvm_tgt_dev *tgt_dev, sector_t *lba, sector_t len)
-{
- struct nvm_dev *dev = tgt_dev->parent;
- struct nvm_geo *geo = &dev->geo;
- struct nvm_area *area, *prev, *next;
- sector_t begin = 0;
- sector_t max_sectors = (geo->sec_size * dev->total_secs) >> 9;
-
- if (len > max_sectors)
- return -EINVAL;
-
- area = kmalloc(sizeof(struct nvm_area), GFP_KERNEL);
- if (!area)
- return -ENOMEM;
-
- prev = NULL;
-
- spin_lock(&dev->lock);
- list_for_each_entry(next, &dev->area_list, list) {
- if (begin + len > next->begin) {
- begin = next->end;
- prev = next;
- continue;
- }
- break;
- }
-
- if ((begin + len) > max_sectors) {
- spin_unlock(&dev->lock);
- kfree(area);
- return -EINVAL;
- }
-
- area->begin = *lba = begin;
- area->end = begin + len;
-
- if (prev) /* insert into sorted order */
- list_add(&area->list, &prev->list);
- else
- list_add(&area->list, &dev->area_list);
- spin_unlock(&dev->lock);
-
- return 0;
-}
-EXPORT_SYMBOL(nvm_get_area);
-
-void nvm_put_area(struct nvm_tgt_dev *tgt_dev, sector_t begin)
-{
- struct nvm_dev *dev = tgt_dev->parent;
- struct nvm_area *area;
-
- spin_lock(&dev->lock);
- list_for_each_entry(area, &dev->area_list, list) {
- if (area->begin != begin)
- continue;
-
- list_del(&area->list);
- spin_unlock(&dev->lock);
- kfree(area);
- return;
- }
- spin_unlock(&dev->lock);
-}
-EXPORT_SYMBOL(nvm_put_area);
-
void nvm_end_io(struct nvm_rq *rqd)
{
struct nvm_tgt_dev *tgt_dev = rqd->dev;
@@ -858,10 +814,10 @@ int nvm_bb_tbl_fold(struct nvm_dev *dev, u8 *blks, int nr_blks)
struct nvm_geo *geo = &dev->geo;
int blk, offset, pl, blktype;
- if (nr_blks != geo->blks_per_lun * geo->plane_mode)
+ if (nr_blks != geo->nr_chks * geo->plane_mode)
return -EINVAL;
- for (blk = 0; blk < geo->blks_per_lun; blk++) {
+ for (blk = 0; blk < geo->nr_chks; blk++) {
offset = blk * geo->plane_mode;
blktype = blks[offset];
@@ -877,7 +833,7 @@ int nvm_bb_tbl_fold(struct nvm_dev *dev, u8 *blks, int nr_blks)
blks[blk] = blktype;
}
- return geo->blks_per_lun;
+ return geo->nr_chks;
}
EXPORT_SYMBOL(nvm_bb_tbl_fold);
@@ -892,53 +848,6 @@ int nvm_get_tgt_bb_tbl(struct nvm_tgt_dev *tgt_dev, struct ppa_addr ppa,
}
EXPORT_SYMBOL(nvm_get_tgt_bb_tbl);
-static int nvm_init_slc_tbl(struct nvm_dev *dev, struct nvm_id_group *grp)
-{
- struct nvm_geo *geo = &dev->geo;
- int i;
-
- dev->lps_per_blk = geo->pgs_per_blk;
- dev->lptbl = kcalloc(dev->lps_per_blk, sizeof(int), GFP_KERNEL);
- if (!dev->lptbl)
- return -ENOMEM;
-
- /* Just a linear array */
- for (i = 0; i < dev->lps_per_blk; i++)
- dev->lptbl[i] = i;
-
- return 0;
-}
-
-static int nvm_init_mlc_tbl(struct nvm_dev *dev, struct nvm_id_group *grp)
-{
- int i, p;
- struct nvm_id_lp_mlc *mlc = &grp->lptbl.mlc;
-
- if (!mlc->num_pairs)
- return 0;
-
- dev->lps_per_blk = mlc->num_pairs;
- dev->lptbl = kcalloc(dev->lps_per_blk, sizeof(int), GFP_KERNEL);
- if (!dev->lptbl)
- return -ENOMEM;
-
- /* The lower page table encoding consists of a list of bytes, where each
- * has a lower and an upper half. The first half byte maintains the
- * increment value and every value after is an offset added to the
- * previous incrementation value
- */
- dev->lptbl[0] = mlc->pairs[0] & 0xF;
- for (i = 1; i < dev->lps_per_blk; i++) {
- p = mlc->pairs[i >> 1];
- if (i & 0x1) /* upper */
- dev->lptbl[i] = dev->lptbl[i - 1] + ((p & 0xF0) >> 4);
- else /* lower */
- dev->lptbl[i] = dev->lptbl[i - 1] + (p & 0xF);
- }
-
- return 0;
-}
-
static int nvm_core_init(struct nvm_dev *dev)
{
struct nvm_id *id = &dev->identity;
@@ -946,66 +855,44 @@ static int nvm_core_init(struct nvm_dev *dev)
struct nvm_geo *geo = &dev->geo;
int ret;
+ memcpy(&geo->ppaf, &id->ppaf, sizeof(struct nvm_addr_format));
+
+ if (grp->mtype != 0) {
+ pr_err("nvm: memory type not supported\n");
+ return -EINVAL;
+ }
+
/* Whole device values */
geo->nr_chnls = grp->num_ch;
- geo->luns_per_chnl = grp->num_lun;
-
- /* Generic device values */
- geo->pgs_per_blk = grp->num_pg;
- geo->blks_per_lun = grp->num_blk;
- geo->nr_planes = grp->num_pln;
- geo->fpg_size = grp->fpg_sz;
- geo->pfpg_size = grp->fpg_sz * grp->num_pln;
+ geo->nr_luns = grp->num_lun;
+
+ /* Generic device geometry values */
+ geo->ws_min = grp->ws_min;
+ geo->ws_opt = grp->ws_opt;
+ geo->ws_seq = grp->ws_seq;
+ geo->ws_per_chk = grp->ws_per_chk;
+ geo->nr_chks = grp->num_chk;
geo->sec_size = grp->csecs;
geo->oob_size = grp->sos;
- geo->sec_per_pg = grp->fpg_sz / grp->csecs;
geo->mccap = grp->mccap;
- memcpy(&geo->ppaf, &id->ppaf, sizeof(struct nvm_addr_format));
-
- geo->plane_mode = NVM_PLANE_SINGLE;
geo->max_rq_size = dev->ops->max_phys_sect * geo->sec_size;
- if (grp->mpos & 0x020202)
- geo->plane_mode = NVM_PLANE_DOUBLE;
- if (grp->mpos & 0x040404)
- geo->plane_mode = NVM_PLANE_QUAD;
+ geo->sec_per_chk = grp->clba;
+ geo->sec_per_lun = geo->sec_per_chk * geo->nr_chks;
+ geo->all_luns = geo->nr_luns * geo->nr_chnls;
- if (grp->mtype != 0) {
- pr_err("nvm: memory type not supported\n");
- return -EINVAL;
- }
-
- /* calculated values */
+ /* 1.2 spec device geometry values */
+ geo->plane_mode = 1 << geo->ws_seq;
+ geo->nr_planes = geo->ws_opt / geo->ws_min;
+ geo->sec_per_pg = geo->ws_min;
geo->sec_per_pl = geo->sec_per_pg * geo->nr_planes;
- geo->sec_per_blk = geo->sec_per_pl * geo->pgs_per_blk;
- geo->sec_per_lun = geo->sec_per_blk * geo->blks_per_lun;
- geo->nr_luns = geo->luns_per_chnl * geo->nr_chnls;
- dev->total_secs = geo->nr_luns * geo->sec_per_lun;
- dev->lun_map = kcalloc(BITS_TO_LONGS(geo->nr_luns),
+ dev->total_secs = geo->all_luns * geo->sec_per_lun;
+ dev->lun_map = kcalloc(BITS_TO_LONGS(geo->all_luns),
sizeof(unsigned long), GFP_KERNEL);
if (!dev->lun_map)
return -ENOMEM;
- switch (grp->fmtype) {
- case NVM_ID_FMTYPE_SLC:
- if (nvm_init_slc_tbl(dev, grp)) {
- ret = -ENOMEM;
- goto err_fmtype;
- }
- break;
- case NVM_ID_FMTYPE_MLC:
- if (nvm_init_mlc_tbl(dev, grp)) {
- ret = -ENOMEM;
- goto err_fmtype;
- }
- break;
- default:
- pr_err("nvm: flash type not supported\n");
- ret = -EINVAL;
- goto err_fmtype;
- }
-
INIT_LIST_HEAD(&dev->area_list);
INIT_LIST_HEAD(&dev->targets);
mutex_init(&dev->mlock);
@@ -1031,7 +918,6 @@ static void nvm_free(struct nvm_dev *dev)
dev->ops->destroy_dma_pool(dev->dma_pool);
nvm_unregister_map(dev);
- kfree(dev->lptbl);
kfree(dev->lun_map);
kfree(dev);
}
@@ -1062,8 +948,8 @@ static int nvm_init(struct nvm_dev *dev)
pr_info("nvm: registered %s [%u/%u/%u/%u/%u/%u]\n",
dev->name, geo->sec_per_pg, geo->nr_planes,
- geo->pgs_per_blk, geo->blks_per_lun,
- geo->nr_luns, geo->nr_chnls);
+ geo->ws_per_chk, geo->nr_chks,
+ geo->all_luns, geo->nr_chnls);
return 0;
err:
pr_err("nvm: failed to initialize nvm\n");
@@ -1135,7 +1021,6 @@ EXPORT_SYMBOL(nvm_unregister);
static int __nvm_configure_create(struct nvm_ioctl_create *create)
{
struct nvm_dev *dev;
- struct nvm_ioctl_create_simple *s;
down_write(&nvm_lock);
dev = nvm_find_nvm_dev(create->dev);
@@ -1146,23 +1031,6 @@ static int __nvm_configure_create(struct nvm_ioctl_create *create)
return -EINVAL;
}
- if (create->conf.type != NVM_CONFIG_TYPE_SIMPLE) {
- pr_err("nvm: config type not valid\n");
- return -EINVAL;
- }
- s = &create->conf.s;
-
- if (s->lun_begin == -1 && s->lun_end == -1) {
- s->lun_begin = 0;
- s->lun_end = dev->geo.nr_luns - 1;
- }
-
- if (s->lun_begin > s->lun_end || s->lun_end >= dev->geo.nr_luns) {
- pr_err("nvm: lun out of bound (%u:%u > %u)\n",
- s->lun_begin, s->lun_end, dev->geo.nr_luns - 1);
- return -EINVAL;
- }
-
return nvm_create_tgt(dev, create);
}
@@ -1262,6 +1130,12 @@ static long nvm_ioctl_dev_create(struct file *file, void __user *arg)
if (copy_from_user(&create, arg, sizeof(struct nvm_ioctl_create)))
return -EFAULT;
+ if (create.conf.type == NVM_CONFIG_TYPE_EXTENDED &&
+ create.conf.e.rsv != 0) {
+ pr_err("nvm: reserved config field in use\n");
+ return -EINVAL;
+ }
+
create.dev[DISK_NAME_LEN - 1] = '\0';
create.tgttype[NVM_TTYPE_NAME_MAX - 1] = '\0';
create.tgtname[DISK_NAME_LEN - 1] = '\0';