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Message-Id: <1519205218-26994-2-git-send-email-javier@cnexlabs.com>
Date: Wed, 21 Feb 2018 10:26:39 +0100
From: "Javier González" <jg@...htnvm.io>
To: mb@...htnvm.io
Cc: linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-nvme@...ts.infradead.org,
Javier González <javier@...xlabs.com>
Subject: [PATCH 01/20] lightnvm: simplify geometry structure.
Currently, the device geometry is stored redundantly in the nvm_id and
nvm_geo structures at a device level. Moreover, when instantiating
targets on a specific number of LUNs, these structures are replicated
and manually modified to fit the instance channel and LUN partitioning.
Instead, create a generic geometry around two base structures:
nvm_dev_geo, which describes the geometry of the whole device and
nvm_geo, which describes the geometry of the instance. Since these share
a big part of the geometry, create a nvm_common_geo structure that keeps
the static geoometry values that are shared across instances.
As we introduce support for 2.0, these structures allow to abstract
spec. specific values and present a common geometry to targets.
Signed-off-by: Javier González <javier@...xlabs.com>
---
drivers/lightnvm/core.c | 137 +++++++---------
drivers/lightnvm/pblk-core.c | 16 +-
drivers/lightnvm/pblk-gc.c | 2 +-
drivers/lightnvm/pblk-init.c | 123 +++++++-------
drivers/lightnvm/pblk-read.c | 2 +-
drivers/lightnvm/pblk-recovery.c | 14 +-
drivers/lightnvm/pblk-rl.c | 2 +-
drivers/lightnvm/pblk-sysfs.c | 39 +++--
drivers/lightnvm/pblk-write.c | 2 +-
drivers/lightnvm/pblk.h | 93 +++++------
drivers/nvme/host/lightnvm.c | 339 +++++++++++++++++++++++----------------
include/linux/lightnvm.h | 204 ++++++++++++-----------
12 files changed, 514 insertions(+), 459 deletions(-)
diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index 689c97b97775..42596afdf64c 100644
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -111,6 +111,7 @@ static void nvm_release_luns_err(struct nvm_dev *dev, int lun_begin,
static void nvm_remove_tgt_dev(struct nvm_tgt_dev *tgt_dev, int clear)
{
struct nvm_dev *dev = tgt_dev->parent;
+ struct nvm_dev_geo *dev_geo = &dev->dev_geo;
struct nvm_dev_map *dev_map = tgt_dev->map;
int i, j;
@@ -122,7 +123,7 @@ 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.nr_luns) + lun;
+ int lunid = (ch * dev_geo->nr_luns) + lun;
WARN_ON(!test_and_clear_bit(lunid,
dev->lun_map));
@@ -143,19 +144,20 @@ static struct nvm_tgt_dev *nvm_create_tgt_dev(struct nvm_dev *dev,
u16 lun_begin, u16 lun_end,
u16 op)
{
+ struct nvm_dev_geo *dev_geo = &dev->dev_geo;
struct nvm_tgt_dev *tgt_dev = NULL;
struct nvm_dev_map *dev_rmap = dev->rmap;
struct nvm_dev_map *dev_map;
struct ppa_addr *luns;
int nr_luns = lun_end - lun_begin + 1;
int luns_left = nr_luns;
- 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 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;
+ int sec_per_lun, prev_nr_luns;
int i, j;
nr_chnls = (nr_chnls_mod == 0) ? nr_chnls : nr_chnls + 1;
@@ -173,15 +175,15 @@ 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.nr_luns) ?
- dev->geo.nr_luns : 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.nr_luns) ?
- dev->geo.nr_luns : 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;
@@ -215,18 +217,22 @@ static struct nvm_tgt_dev *nvm_create_tgt_dev(struct nvm_dev *dev,
if (!tgt_dev)
goto err_ch;
- 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.all_luns = nr_luns;
tgt_dev->geo.nr_luns = (lun_balanced) ? prev_nr_luns : -1;
+ tgt_dev->geo.all_luns = nr_luns;
+ tgt_dev->geo.all_chunks = nr_luns * dev_geo->c.num_chk;
+
tgt_dev->geo.op = op;
- tgt_dev->total_secs = nr_luns * tgt_dev->geo.sec_per_lun;
+
+ sec_per_lun = dev_geo->c.clba * dev_geo->c.num_chk;
+ tgt_dev->geo.total_secs = nr_luns * sec_per_lun;
+
+ tgt_dev->geo.c = dev_geo->c;
+
tgt_dev->q = dev->q;
tgt_dev->map = dev_map;
tgt_dev->luns = luns;
- memcpy(&tgt_dev->identity, &dev->identity, sizeof(struct nvm_id));
-
tgt_dev->parent = dev;
return tgt_dev;
@@ -268,12 +274,12 @@ static struct nvm_tgt_type *nvm_find_target_type(const char *name)
return tt;
}
-static int nvm_config_check_luns(struct nvm_geo *geo, int lun_begin,
+static int nvm_config_check_luns(struct nvm_dev_geo *dev_geo, int lun_begin,
int lun_end)
{
- if (lun_begin > lun_end || lun_end >= geo->all_luns) {
+ if (lun_begin > lun_end || lun_end >= dev_geo->all_luns) {
pr_err("nvm: lun out of bound (%u:%u > %u)\n",
- lun_begin, lun_end, geo->all_luns - 1);
+ lun_begin, lun_end, dev_geo->all_luns - 1);
return -EINVAL;
}
@@ -283,24 +289,24 @@ static int nvm_config_check_luns(struct nvm_geo *geo, int lun_begin,
static int __nvm_config_simple(struct nvm_dev *dev,
struct nvm_ioctl_create_simple *s)
{
- struct nvm_geo *geo = &dev->geo;
+ struct nvm_dev_geo *dev_geo = &dev->dev_geo;
if (s->lun_begin == -1 && s->lun_end == -1) {
s->lun_begin = 0;
- s->lun_end = geo->all_luns - 1;
+ s->lun_end = dev_geo->all_luns - 1;
}
- return nvm_config_check_luns(geo, s->lun_begin, s->lun_end);
+ return nvm_config_check_luns(dev_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;
+ struct nvm_dev_geo *dev_geo = &dev->dev_geo;
if (e->lun_begin == 0xFFFF && e->lun_end == 0xFFFF) {
e->lun_begin = 0;
- e->lun_end = dev->geo.all_luns - 1;
+ e->lun_end = dev_geo->all_luns - 1;
}
/* op not set falls into target's default */
@@ -313,7 +319,7 @@ static int __nvm_config_extended(struct nvm_dev *dev,
return -EINVAL;
}
- return nvm_config_check_luns(geo, e->lun_begin, e->lun_end);
+ return nvm_config_check_luns(dev_geo, e->lun_begin, e->lun_end);
}
static int nvm_create_tgt(struct nvm_dev *dev, struct nvm_ioctl_create *create)
@@ -408,7 +414,7 @@ static int nvm_create_tgt(struct nvm_dev *dev, struct nvm_ioctl_create *create)
tqueue->queuedata = targetdata;
blk_queue_max_hw_sectors(tqueue,
- (dev->geo.sec_size >> 9) * NVM_MAX_VLBA);
+ (dev->dev_geo.c.csecs >> 9) * NVM_MAX_VLBA);
set_capacity(tdisk, tt->capacity(targetdata));
add_disk(tdisk);
@@ -497,6 +503,7 @@ static int nvm_remove_tgt(struct nvm_dev *dev, struct nvm_ioctl_remove *remove)
static int nvm_register_map(struct nvm_dev *dev)
{
+ struct nvm_dev_geo *dev_geo = &dev->dev_geo;
struct nvm_dev_map *rmap;
int i, j;
@@ -504,15 +511,15 @@ static int nvm_register_map(struct nvm_dev *dev)
if (!rmap)
goto err_rmap;
- rmap->chnls = kcalloc(dev->geo.nr_chnls, sizeof(struct nvm_ch_map),
+ rmap->chnls = kcalloc(dev_geo->nr_chnls, sizeof(struct nvm_ch_map),
GFP_KERNEL);
if (!rmap->chnls)
goto err_chnls;
- for (i = 0; i < dev->geo.nr_chnls; i++) {
+ for (i = 0; i < dev_geo->nr_chnls; i++) {
struct nvm_ch_map *ch_rmap;
int *lun_roffs;
- int luns_in_chnl = dev->geo.nr_luns;
+ int luns_in_chnl = dev_geo->nr_luns;
ch_rmap = &rmap->chnls[i];
@@ -543,10 +550,11 @@ static int nvm_register_map(struct nvm_dev *dev)
static void nvm_unregister_map(struct nvm_dev *dev)
{
+ struct nvm_dev_geo *dev_geo = &dev->dev_geo;
struct nvm_dev_map *rmap = dev->rmap;
int i;
- for (i = 0; i < dev->geo.nr_chnls; i++)
+ for (i = 0; i < dev_geo->nr_chnls; i++)
kfree(rmap->chnls[i].lun_offs);
kfree(rmap->chnls);
@@ -675,7 +683,7 @@ static int nvm_set_rqd_ppalist(struct nvm_tgt_dev *tgt_dev, struct nvm_rq *rqd,
int i, plane_cnt, pl_idx;
struct ppa_addr ppa;
- if (geo->plane_mode == NVM_PLANE_SINGLE && nr_ppas == 1) {
+ if (geo->c.pln_mode == NVM_PLANE_SINGLE && nr_ppas == 1) {
rqd->nr_ppas = nr_ppas;
rqd->ppa_addr = ppas[0];
@@ -689,7 +697,7 @@ static int nvm_set_rqd_ppalist(struct nvm_tgt_dev *tgt_dev, struct nvm_rq *rqd,
return -ENOMEM;
}
- plane_cnt = geo->plane_mode;
+ plane_cnt = geo->c.pln_mode;
rqd->nr_ppas *= plane_cnt;
for (i = 0; i < nr_ppas; i++) {
@@ -804,18 +812,18 @@ EXPORT_SYMBOL(nvm_end_io);
*/
int nvm_bb_tbl_fold(struct nvm_dev *dev, u8 *blks, int nr_blks)
{
- struct nvm_geo *geo = &dev->geo;
+ struct nvm_dev_geo *dev_geo = &dev->dev_geo;
int blk, offset, pl, blktype;
- if (nr_blks != geo->nr_chks * geo->plane_mode)
+ if (nr_blks != dev_geo->c.num_chk * dev_geo->c.pln_mode)
return -EINVAL;
- for (blk = 0; blk < geo->nr_chks; blk++) {
- offset = blk * geo->plane_mode;
+ for (blk = 0; blk < dev_geo->c.num_chk; blk++) {
+ offset = blk * dev_geo->c.pln_mode;
blktype = blks[offset];
/* Bad blocks on any planes take precedence over other types */
- for (pl = 0; pl < geo->plane_mode; pl++) {
+ for (pl = 0; pl < dev_geo->c.pln_mode; pl++) {
if (blks[offset + pl] &
(NVM_BLK_T_BAD|NVM_BLK_T_GRWN_BAD)) {
blktype = blks[offset + pl];
@@ -826,7 +834,7 @@ int nvm_bb_tbl_fold(struct nvm_dev *dev, u8 *blks, int nr_blks)
blks[blk] = blktype;
}
- return geo->nr_chks;
+ return dev_geo->c.num_chk;
}
EXPORT_SYMBOL(nvm_bb_tbl_fold);
@@ -843,41 +851,10 @@ EXPORT_SYMBOL(nvm_get_tgt_bb_tbl);
static int nvm_core_init(struct nvm_dev *dev)
{
- struct nvm_id *id = &dev->identity;
- struct nvm_geo *geo = &dev->geo;
+ struct nvm_dev_geo *dev_geo = &dev->dev_geo;
int ret;
- memcpy(&geo->ppaf, &id->ppaf, sizeof(struct nvm_addr_format));
-
- if (id->mtype != 0) {
- pr_err("nvm: memory type not supported\n");
- return -EINVAL;
- }
-
- /* Whole device values */
- geo->nr_chnls = id->num_ch;
- geo->nr_luns = id->num_lun;
-
- /* Generic device geometry values */
- geo->ws_min = id->ws_min;
- geo->ws_opt = id->ws_opt;
- geo->ws_seq = id->ws_seq;
- geo->ws_per_chk = id->ws_per_chk;
- geo->nr_chks = id->num_chk;
- geo->mccap = id->mccap;
-
- geo->sec_per_chk = id->clba;
- geo->sec_per_lun = geo->sec_per_chk * geo->nr_chks;
- geo->all_luns = geo->nr_luns * geo->nr_chnls;
-
- /* 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;
-
- dev->total_secs = geo->all_luns * geo->sec_per_lun;
- dev->lun_map = kcalloc(BITS_TO_LONGS(geo->all_luns),
+ dev->lun_map = kcalloc(BITS_TO_LONGS(dev_geo->all_luns),
sizeof(unsigned long), GFP_KERNEL);
if (!dev->lun_map)
return -ENOMEM;
@@ -912,19 +889,17 @@ static void nvm_free(struct nvm_dev *dev)
static int nvm_init(struct nvm_dev *dev)
{
- struct nvm_geo *geo = &dev->geo;
+ struct nvm_dev_geo *dev_geo = &dev->dev_geo;
int ret = -EINVAL;
- if (dev->ops->identity(dev, &dev->identity)) {
+ if (dev->ops->identity(dev)) {
pr_err("nvm: device could not be identified\n");
goto err;
}
- if (dev->identity.ver_id != 1 && dev->identity.ver_id != 2) {
- pr_err("nvm: device ver_id %d not supported by kernel.\n",
- dev->identity.ver_id);
- goto err;
- }
+ pr_debug("nvm: ver:%u nvm_vendor:%x\n",
+ dev_geo->ver_id,
+ dev_geo->c.vmnt);
ret = nvm_core_init(dev);
if (ret) {
@@ -932,10 +907,10 @@ static int nvm_init(struct nvm_dev *dev)
goto err;
}
- pr_info("nvm: registered %s [%u/%u/%u/%u/%u/%u]\n",
- dev->name, geo->sec_per_pg, geo->nr_planes,
- geo->ws_per_chk, geo->nr_chks,
- geo->all_luns, geo->nr_chnls);
+ pr_info("nvm: registered %s [%u/%u/%u/%u/%u]\n",
+ dev->name, dev_geo->c.ws_min, dev_geo->c.ws_opt,
+ dev_geo->c.num_chk, dev_geo->all_luns,
+ dev_geo->nr_chnls);
return 0;
err:
pr_err("nvm: failed to initialize nvm\n");
diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c
index 22e61cd4f801..519af8b9eab7 100644
--- a/drivers/lightnvm/pblk-core.c
+++ b/drivers/lightnvm/pblk-core.c
@@ -613,7 +613,7 @@ static int pblk_line_submit_emeta_io(struct pblk *pblk, struct pblk_line *line,
memset(&rqd, 0, sizeof(struct nvm_rq));
rq_ppas = pblk_calc_secs(pblk, left_ppas, 0);
- rq_len = rq_ppas * geo->sec_size;
+ rq_len = rq_ppas * geo->c.csecs;
bio = pblk_bio_map_addr(pblk, emeta_buf, rq_ppas, rq_len,
l_mg->emeta_alloc_type, GFP_KERNEL);
@@ -722,7 +722,7 @@ u64 pblk_line_smeta_start(struct pblk *pblk, struct pblk_line *line)
if (bit >= lm->blk_per_line)
return -1;
- return bit * geo->sec_per_pl;
+ return bit * geo->c.ws_opt;
}
static int pblk_line_submit_smeta_io(struct pblk *pblk, struct pblk_line *line,
@@ -1035,19 +1035,19 @@ static int pblk_line_init_bb(struct pblk *pblk, struct pblk_line *line,
/* Capture bad block information on line mapping bitmaps */
while ((bit = find_next_bit(line->blk_bitmap, lm->blk_per_line,
bit + 1)) < lm->blk_per_line) {
- off = bit * geo->sec_per_pl;
+ off = bit * geo->c.ws_opt;
bitmap_shift_left(l_mg->bb_aux, l_mg->bb_template, off,
lm->sec_per_line);
bitmap_or(line->map_bitmap, line->map_bitmap, l_mg->bb_aux,
lm->sec_per_line);
- line->sec_in_line -= geo->sec_per_chk;
+ line->sec_in_line -= geo->c.clba;
if (bit >= lm->emeta_bb)
nr_bb++;
}
/* Mark smeta metadata sectors as bad sectors */
bit = find_first_zero_bit(line->blk_bitmap, lm->blk_per_line);
- off = bit * geo->sec_per_pl;
+ off = bit * geo->c.ws_opt;
bitmap_set(line->map_bitmap, off, lm->smeta_sec);
line->sec_in_line -= lm->smeta_sec;
line->smeta_ssec = off;
@@ -1066,10 +1066,10 @@ static int pblk_line_init_bb(struct pblk *pblk, struct pblk_line *line,
emeta_secs = lm->emeta_sec[0];
off = lm->sec_per_line;
while (emeta_secs) {
- off -= geo->sec_per_pl;
+ off -= geo->c.ws_opt;
if (!test_bit(off, line->invalid_bitmap)) {
- bitmap_set(line->invalid_bitmap, off, geo->sec_per_pl);
- emeta_secs -= geo->sec_per_pl;
+ bitmap_set(line->invalid_bitmap, off, geo->c.ws_opt);
+ emeta_secs -= geo->c.ws_opt;
}
}
diff --git a/drivers/lightnvm/pblk-gc.c b/drivers/lightnvm/pblk-gc.c
index 320f99af99e9..16afea3f5541 100644
--- a/drivers/lightnvm/pblk-gc.c
+++ b/drivers/lightnvm/pblk-gc.c
@@ -88,7 +88,7 @@ static void pblk_gc_line_ws(struct work_struct *work)
up(&gc->gc_sem);
- gc_rq->data = vmalloc(gc_rq->nr_secs * geo->sec_size);
+ gc_rq->data = vmalloc(gc_rq->nr_secs * geo->c.csecs);
if (!gc_rq->data) {
pr_err("pblk: could not GC line:%d (%d/%d)\n",
line->id, *line->vsc, gc_rq->nr_secs);
diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c
index 5261702e9ff7..95ecb0ec736b 100644
--- a/drivers/lightnvm/pblk-init.c
+++ b/drivers/lightnvm/pblk-init.c
@@ -146,7 +146,7 @@ static int pblk_rwb_init(struct pblk *pblk)
return -ENOMEM;
power_size = get_count_order(nr_entries);
- power_seg_sz = get_count_order(geo->sec_size);
+ power_seg_sz = get_count_order(geo->c.csecs);
return pblk_rb_init(&pblk->rwb, entries, power_size, power_seg_sz);
}
@@ -154,11 +154,11 @@ static int pblk_rwb_init(struct pblk *pblk)
/* Minimum pages needed within a lun */
#define ADDR_POOL_SIZE 64
-static int pblk_set_ppaf(struct pblk *pblk)
+static int pblk_set_addrf_12(struct nvm_geo *geo,
+ struct nvm_addr_format_12 *dst)
{
- struct nvm_tgt_dev *dev = pblk->dev;
- struct nvm_geo *geo = &dev->geo;
- struct nvm_addr_format ppaf = geo->ppaf;
+ struct nvm_addr_format_12 *src =
+ (struct nvm_addr_format_12 *)&geo->c.addrf;
int power_len;
/* Re-calculate channel and lun format to adapt to configuration */
@@ -167,34 +167,50 @@ static int pblk_set_ppaf(struct pblk *pblk)
pr_err("pblk: supports only power-of-two channel config.\n");
return -EINVAL;
}
- ppaf.ch_len = power_len;
+ dst->ch_len = power_len;
power_len = get_count_order(geo->nr_luns);
if (1 << power_len != geo->nr_luns) {
pr_err("pblk: supports only power-of-two LUN config.\n");
return -EINVAL;
}
- ppaf.lun_len = power_len;
+ dst->lun_len = power_len;
- pblk->ppaf.sec_offset = 0;
- pblk->ppaf.pln_offset = ppaf.sect_len;
- pblk->ppaf.ch_offset = pblk->ppaf.pln_offset + ppaf.pln_len;
- pblk->ppaf.lun_offset = pblk->ppaf.ch_offset + ppaf.ch_len;
- pblk->ppaf.pg_offset = pblk->ppaf.lun_offset + ppaf.lun_len;
- pblk->ppaf.blk_offset = pblk->ppaf.pg_offset + ppaf.pg_len;
- pblk->ppaf.sec_mask = (1ULL << ppaf.sect_len) - 1;
- pblk->ppaf.pln_mask = ((1ULL << ppaf.pln_len) - 1) <<
- pblk->ppaf.pln_offset;
- pblk->ppaf.ch_mask = ((1ULL << ppaf.ch_len) - 1) <<
- pblk->ppaf.ch_offset;
- pblk->ppaf.lun_mask = ((1ULL << ppaf.lun_len) - 1) <<
- pblk->ppaf.lun_offset;
- pblk->ppaf.pg_mask = ((1ULL << ppaf.pg_len) - 1) <<
- pblk->ppaf.pg_offset;
- pblk->ppaf.blk_mask = ((1ULL << ppaf.blk_len) - 1) <<
- pblk->ppaf.blk_offset;
+ dst->blk_len = src->blk_len;
+ dst->pg_len = src->pg_len;
+ dst->pln_len = src->pln_len;
+ dst->sect_len = src->sect_len;
- pblk->ppaf_bitsize = pblk->ppaf.blk_offset + ppaf.blk_len;
+ dst->sect_offset = 0;
+ dst->pln_offset = dst->sect_len;
+ dst->ch_offset = dst->pln_offset + dst->pln_len;
+ dst->lun_offset = dst->ch_offset + dst->ch_len;
+ dst->pg_offset = dst->lun_offset + dst->lun_len;
+ dst->blk_offset = dst->pg_offset + dst->pg_len;
+
+ dst->sec_mask = ((1ULL << dst->sect_len) - 1) << dst->sect_offset;
+ dst->pln_mask = ((1ULL << dst->pln_len) - 1) << dst->pln_offset;
+ dst->ch_mask = ((1ULL << dst->ch_len) - 1) << dst->ch_offset;
+ dst->lun_mask = ((1ULL << dst->lun_len) - 1) << dst->lun_offset;
+ dst->pg_mask = ((1ULL << dst->pg_len) - 1) << dst->pg_offset;
+ dst->blk_mask = ((1ULL << dst->blk_len) - 1) << dst->blk_offset;
+
+ return dst->blk_offset + src->blk_len;
+}
+
+static int pblk_set_ppaf(struct pblk *pblk)
+{
+ struct nvm_tgt_dev *dev = pblk->dev;
+ struct nvm_geo *geo = &dev->geo;
+ int mod;
+
+ div_u64_rem(geo->c.clba, pblk->min_write_pgs, &mod);
+ if (mod) {
+ pr_err("pblk: bad configuration of sectors/pages\n");
+ return -EINVAL;
+ }
+
+ pblk->ppaf_bitsize = pblk_set_addrf_12(geo, (void *)&pblk->ppaf);
return 0;
}
@@ -253,8 +269,7 @@ static int pblk_core_init(struct pblk *pblk)
struct nvm_tgt_dev *dev = pblk->dev;
struct nvm_geo *geo = &dev->geo;
- pblk->pgs_in_buffer = NVM_MEM_PAGE_WRITE * geo->sec_per_pg *
- geo->nr_planes * geo->all_luns;
+ pblk->pgs_in_buffer = geo->c.mw_cunits * geo->c.ws_opt * geo->all_luns;
if (pblk_init_global_caches(pblk))
return -ENOMEM;
@@ -433,7 +448,7 @@ static void *pblk_bb_get_log(struct pblk *pblk)
int i, nr_blks, blk_per_lun;
int ret;
- blk_per_lun = geo->nr_chks * geo->plane_mode;
+ blk_per_lun = geo->c.num_chk * geo->c.pln_mode;
nr_blks = blk_per_lun * geo->all_luns;
log = kmalloc(nr_blks, GFP_KERNEL);
@@ -551,18 +566,18 @@ static unsigned int calc_emeta_len(struct pblk *pblk)
/* Round to sector size so that lba_list starts on its own sector */
lm->emeta_sec[1] = DIV_ROUND_UP(
sizeof(struct line_emeta) + lm->blk_bitmap_len +
- sizeof(struct wa_counters), geo->sec_size);
- lm->emeta_len[1] = lm->emeta_sec[1] * geo->sec_size;
+ sizeof(struct wa_counters), geo->c.csecs);
+ lm->emeta_len[1] = lm->emeta_sec[1] * geo->c.csecs;
/* Round to sector size so that vsc_list starts on its own sector */
lm->dsec_per_line = lm->sec_per_line - lm->emeta_sec[0];
lm->emeta_sec[2] = DIV_ROUND_UP(lm->dsec_per_line * sizeof(u64),
- geo->sec_size);
- lm->emeta_len[2] = lm->emeta_sec[2] * geo->sec_size;
+ geo->c.csecs);
+ lm->emeta_len[2] = lm->emeta_sec[2] * geo->c.csecs;
lm->emeta_sec[3] = DIV_ROUND_UP(l_mg->nr_lines * sizeof(u32),
- geo->sec_size);
- lm->emeta_len[3] = lm->emeta_sec[3] * geo->sec_size;
+ geo->c.csecs);
+ lm->emeta_len[3] = lm->emeta_sec[3] * geo->c.csecs;
lm->vsc_list_len = l_mg->nr_lines * sizeof(u32);
@@ -593,13 +608,13 @@ static void pblk_set_provision(struct pblk *pblk, long nr_free_blks)
* on user capacity consider only provisioned blocks
*/
pblk->rl.total_blocks = nr_free_blks;
- pblk->rl.nr_secs = nr_free_blks * geo->sec_per_chk;
+ pblk->rl.nr_secs = nr_free_blks * geo->c.clba;
/* Consider sectors used for metadata */
sec_meta = (lm->smeta_sec + lm->emeta_sec[0]) * l_mg->nr_free_lines;
- blk_meta = DIV_ROUND_UP(sec_meta, geo->sec_per_chk);
+ blk_meta = DIV_ROUND_UP(sec_meta, geo->c.clba);
- pblk->capacity = (provisioned - blk_meta) * geo->sec_per_chk;
+ pblk->capacity = (provisioned - blk_meta) * geo->c.clba;
atomic_set(&pblk->rl.free_blocks, nr_free_blks);
atomic_set(&pblk->rl.free_user_blocks, nr_free_blks);
@@ -710,10 +725,10 @@ static int pblk_lines_init(struct pblk *pblk)
void *chunk_log;
unsigned int smeta_len, emeta_len;
long nr_bad_blks = 0, nr_free_blks = 0;
- int bb_distance, max_write_ppas, mod;
+ int bb_distance, max_write_ppas;
int i, ret;
- pblk->min_write_pgs = geo->sec_per_pl * (geo->sec_size / PAGE_SIZE);
+ pblk->min_write_pgs = geo->c.ws_opt * (geo->c.csecs / PAGE_SIZE);
max_write_ppas = pblk->min_write_pgs * geo->all_luns;
pblk->max_write_pgs = min_t(int, max_write_ppas, NVM_MAX_VLBA);
pblk_set_sec_per_write(pblk, pblk->min_write_pgs);
@@ -724,19 +739,13 @@ static int pblk_lines_init(struct pblk *pblk)
return -EINVAL;
}
- div_u64_rem(geo->sec_per_chk, pblk->min_write_pgs, &mod);
- if (mod) {
- pr_err("pblk: bad configuration of sectors/pages\n");
- return -EINVAL;
- }
-
- l_mg->nr_lines = geo->nr_chks;
+ l_mg->nr_lines = geo->c.num_chk;
l_mg->log_line = l_mg->data_line = NULL;
l_mg->l_seq_nr = l_mg->d_seq_nr = 0;
l_mg->nr_free_lines = 0;
bitmap_zero(&l_mg->meta_bitmap, PBLK_DATA_LINES);
- lm->sec_per_line = geo->sec_per_chk * geo->all_luns;
+ lm->sec_per_line = geo->c.clba * geo->all_luns;
lm->blk_per_line = geo->all_luns;
lm->blk_bitmap_len = BITS_TO_LONGS(geo->all_luns) * sizeof(long);
lm->sec_bitmap_len = BITS_TO_LONGS(lm->sec_per_line) * sizeof(long);
@@ -750,8 +759,8 @@ static int pblk_lines_init(struct pblk *pblk)
*/
i = 1;
add_smeta_page:
- lm->smeta_sec = i * geo->sec_per_pl;
- lm->smeta_len = lm->smeta_sec * geo->sec_size;
+ lm->smeta_sec = i * geo->c.ws_opt;
+ lm->smeta_len = lm->smeta_sec * geo->c.csecs;
smeta_len = sizeof(struct line_smeta) + lm->lun_bitmap_len;
if (smeta_len > lm->smeta_len) {
@@ -764,8 +773,8 @@ static int pblk_lines_init(struct pblk *pblk)
*/
i = 1;
add_emeta_page:
- lm->emeta_sec[0] = i * geo->sec_per_pl;
- lm->emeta_len[0] = lm->emeta_sec[0] * geo->sec_size;
+ lm->emeta_sec[0] = i * geo->c.ws_opt;
+ lm->emeta_len[0] = lm->emeta_sec[0] * geo->c.csecs;
emeta_len = calc_emeta_len(pblk);
if (emeta_len > lm->emeta_len[0]) {
@@ -778,7 +787,7 @@ static int pblk_lines_init(struct pblk *pblk)
lm->min_blk_line = 1;
if (geo->all_luns > 1)
lm->min_blk_line += DIV_ROUND_UP(lm->smeta_sec +
- lm->emeta_sec[0], geo->sec_per_chk);
+ lm->emeta_sec[0], geo->c.clba);
if (lm->min_blk_line > lm->blk_per_line) {
pr_err("pblk: config. not supported. Min. LUN in line:%d\n",
@@ -802,9 +811,9 @@ static int pblk_lines_init(struct pblk *pblk)
goto fail_free_bb_template;
}
- bb_distance = (geo->all_luns) * geo->sec_per_pl;
+ bb_distance = (geo->all_luns) * geo->c.ws_opt;
for (i = 0; i < lm->sec_per_line; i += bb_distance)
- bitmap_set(l_mg->bb_template, i, geo->sec_per_pl);
+ bitmap_set(l_mg->bb_template, i, geo->c.ws_opt);
INIT_LIST_HEAD(&l_mg->free_list);
INIT_LIST_HEAD(&l_mg->corrupt_list);
@@ -981,9 +990,9 @@ static void *pblk_init(struct nvm_tgt_dev *dev, struct gendisk *tdisk,
struct pblk *pblk;
int ret;
- if (dev->identity.dom & NVM_RSP_L2P) {
+ if (dev->geo.c.dom & NVM_RSP_L2P) {
pr_err("pblk: host-side L2P table not supported. (%x)\n",
- dev->identity.dom);
+ dev->geo.c.dom);
return ERR_PTR(-EINVAL);
}
@@ -1091,7 +1100,7 @@ static void *pblk_init(struct nvm_tgt_dev *dev, struct gendisk *tdisk,
blk_queue_write_cache(tqueue, true, false);
- tqueue->limits.discard_granularity = geo->sec_per_chk * geo->sec_size;
+ tqueue->limits.discard_granularity = geo->c.clba * geo->c.csecs;
tqueue->limits.discard_alignment = 0;
blk_queue_max_discard_sectors(tqueue, UINT_MAX >> 9);
queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, tqueue);
diff --git a/drivers/lightnvm/pblk-read.c b/drivers/lightnvm/pblk-read.c
index 2f761283f43e..ebb6bae3a3b8 100644
--- a/drivers/lightnvm/pblk-read.c
+++ b/drivers/lightnvm/pblk-read.c
@@ -563,7 +563,7 @@ int pblk_submit_read_gc(struct pblk *pblk, struct pblk_gc_rq *gc_rq)
if (!(gc_rq->secs_to_gc))
goto out;
- data_len = (gc_rq->secs_to_gc) * geo->sec_size;
+ data_len = (gc_rq->secs_to_gc) * geo->c.csecs;
bio = pblk_bio_map_addr(pblk, gc_rq->data, gc_rq->secs_to_gc, data_len,
PBLK_VMALLOC_META, GFP_KERNEL);
if (IS_ERR(bio)) {
diff --git a/drivers/lightnvm/pblk-recovery.c b/drivers/lightnvm/pblk-recovery.c
index aaab9a5c17cc..1574dbbfbb1c 100644
--- a/drivers/lightnvm/pblk-recovery.c
+++ b/drivers/lightnvm/pblk-recovery.c
@@ -184,7 +184,7 @@ static int pblk_calc_sec_in_line(struct pblk *pblk, struct pblk_line *line)
int nr_bb = bitmap_weight(line->blk_bitmap, lm->blk_per_line);
return lm->sec_per_line - lm->smeta_sec - lm->emeta_sec[0] -
- nr_bb * geo->sec_per_chk;
+ nr_bb * geo->c.clba;
}
struct pblk_recov_alloc {
@@ -232,7 +232,7 @@ static int pblk_recov_read_oob(struct pblk *pblk, struct pblk_line *line,
rq_ppas = pblk_calc_secs(pblk, left_ppas, 0);
if (!rq_ppas)
rq_ppas = pblk->min_write_pgs;
- rq_len = rq_ppas * geo->sec_size;
+ rq_len = rq_ppas * geo->c.csecs;
bio = bio_map_kern(dev->q, data, rq_len, GFP_KERNEL);
if (IS_ERR(bio))
@@ -351,7 +351,7 @@ static int pblk_recov_pad_oob(struct pblk *pblk, struct pblk_line *line,
if (!pad_rq)
return -ENOMEM;
- data = vzalloc(pblk->max_write_pgs * geo->sec_size);
+ data = vzalloc(pblk->max_write_pgs * geo->c.csecs);
if (!data) {
ret = -ENOMEM;
goto free_rq;
@@ -368,7 +368,7 @@ static int pblk_recov_pad_oob(struct pblk *pblk, struct pblk_line *line,
goto fail_free_pad;
}
- rq_len = rq_ppas * geo->sec_size;
+ rq_len = rq_ppas * geo->c.csecs;
meta_list = nvm_dev_dma_alloc(dev->parent, GFP_KERNEL, &dma_meta_list);
if (!meta_list) {
@@ -509,7 +509,7 @@ static int pblk_recov_scan_all_oob(struct pblk *pblk, struct pblk_line *line,
rq_ppas = pblk_calc_secs(pblk, left_ppas, 0);
if (!rq_ppas)
rq_ppas = pblk->min_write_pgs;
- rq_len = rq_ppas * geo->sec_size;
+ rq_len = rq_ppas * geo->c.csecs;
bio = bio_map_kern(dev->q, data, rq_len, GFP_KERNEL);
if (IS_ERR(bio))
@@ -640,7 +640,7 @@ static int pblk_recov_scan_oob(struct pblk *pblk, struct pblk_line *line,
rq_ppas = pblk_calc_secs(pblk, left_ppas, 0);
if (!rq_ppas)
rq_ppas = pblk->min_write_pgs;
- rq_len = rq_ppas * geo->sec_size;
+ rq_len = rq_ppas * geo->c.csecs;
bio = bio_map_kern(dev->q, data, rq_len, GFP_KERNEL);
if (IS_ERR(bio))
@@ -745,7 +745,7 @@ static int pblk_recov_l2p_from_oob(struct pblk *pblk, struct pblk_line *line)
ppa_list = (void *)(meta_list) + pblk_dma_meta_size;
dma_ppa_list = dma_meta_list + pblk_dma_meta_size;
- data = kcalloc(pblk->max_write_pgs, geo->sec_size, GFP_KERNEL);
+ data = kcalloc(pblk->max_write_pgs, geo->c.csecs, GFP_KERNEL);
if (!data) {
ret = -ENOMEM;
goto free_meta_list;
diff --git a/drivers/lightnvm/pblk-rl.c b/drivers/lightnvm/pblk-rl.c
index 0d457b162f23..bcab203477ec 100644
--- a/drivers/lightnvm/pblk-rl.c
+++ b/drivers/lightnvm/pblk-rl.c
@@ -200,7 +200,7 @@ void pblk_rl_init(struct pblk_rl *rl, int budget)
/* Consider sectors used for metadata */
sec_meta = (lm->smeta_sec + lm->emeta_sec[0]) * l_mg->nr_free_lines;
- blk_meta = DIV_ROUND_UP(sec_meta, geo->sec_per_chk);
+ blk_meta = DIV_ROUND_UP(sec_meta, geo->c.clba);
rl->high = pblk->op_blks - blk_meta - lm->blk_per_line;
rl->high_pw = get_count_order(rl->high);
diff --git a/drivers/lightnvm/pblk-sysfs.c b/drivers/lightnvm/pblk-sysfs.c
index d93e9b1f083a..5eb21a279361 100644
--- a/drivers/lightnvm/pblk-sysfs.c
+++ b/drivers/lightnvm/pblk-sysfs.c
@@ -113,26 +113,31 @@ static ssize_t pblk_sysfs_ppaf(struct pblk *pblk, char *page)
{
struct nvm_tgt_dev *dev = pblk->dev;
struct nvm_geo *geo = &dev->geo;
+ struct nvm_addr_format_12 *ppaf;
+ struct nvm_addr_format_12 *geo_ppaf;
ssize_t sz = 0;
- sz = snprintf(page, PAGE_SIZE - sz,
- "g:(b:%d)blk:%d/%d,pg:%d/%d,lun:%d/%d,ch:%d/%d,pl:%d/%d,sec:%d/%d\n",
- pblk->ppaf_bitsize,
- pblk->ppaf.blk_offset, geo->ppaf.blk_len,
- pblk->ppaf.pg_offset, geo->ppaf.pg_len,
- pblk->ppaf.lun_offset, geo->ppaf.lun_len,
- pblk->ppaf.ch_offset, geo->ppaf.ch_len,
- pblk->ppaf.pln_offset, geo->ppaf.pln_len,
- pblk->ppaf.sec_offset, geo->ppaf.sect_len);
+ ppaf = (struct nvm_addr_format_12 *)&pblk->ppaf;
+ geo_ppaf = (struct nvm_addr_format_12 *)&geo->c.addrf;
+
+ sz = snprintf(page, PAGE_SIZE,
+ "pblk:(s:%d)ch:%d/%d,lun:%d/%d,blk:%d/%d,pg:%d/%d,pl:%d/%d,sec:%d/%d\n",
+ pblk->ppaf_bitsize,
+ ppaf->ch_offset, ppaf->ch_len,
+ ppaf->lun_offset, ppaf->lun_len,
+ ppaf->blk_offset, ppaf->blk_len,
+ ppaf->pg_offset, ppaf->pg_len,
+ ppaf->pln_offset, ppaf->pln_len,
+ ppaf->sect_offset, ppaf->sect_len);
sz += snprintf(page + sz, PAGE_SIZE - sz,
- "d:blk:%d/%d,pg:%d/%d,lun:%d/%d,ch:%d/%d,pl:%d/%d,sec:%d/%d\n",
- geo->ppaf.blk_offset, geo->ppaf.blk_len,
- geo->ppaf.pg_offset, geo->ppaf.pg_len,
- geo->ppaf.lun_offset, geo->ppaf.lun_len,
- geo->ppaf.ch_offset, geo->ppaf.ch_len,
- geo->ppaf.pln_offset, geo->ppaf.pln_len,
- geo->ppaf.sect_offset, geo->ppaf.sect_len);
+ "device:ch:%d/%d,lun:%d/%d,blk:%d/%d,pg:%d/%d,pl:%d/%d,sec:%d/%d\n",
+ geo_ppaf->ch_offset, geo_ppaf->ch_len,
+ geo_ppaf->lun_offset, geo_ppaf->lun_len,
+ geo_ppaf->blk_offset, geo_ppaf->blk_len,
+ geo_ppaf->pg_offset, geo_ppaf->pg_len,
+ geo_ppaf->pln_offset, geo_ppaf->pln_len,
+ geo_ppaf->sect_offset, geo_ppaf->sect_len);
return sz;
}
@@ -288,7 +293,7 @@ static ssize_t pblk_sysfs_lines_info(struct pblk *pblk, char *page)
"blk_line:%d, sec_line:%d, sec_blk:%d\n",
lm->blk_per_line,
lm->sec_per_line,
- geo->sec_per_chk);
+ geo->c.clba);
return sz;
}
diff --git a/drivers/lightnvm/pblk-write.c b/drivers/lightnvm/pblk-write.c
index aae86ed60b98..c49b27539d5a 100644
--- a/drivers/lightnvm/pblk-write.c
+++ b/drivers/lightnvm/pblk-write.c
@@ -333,7 +333,7 @@ int pblk_submit_meta_io(struct pblk *pblk, struct pblk_line *meta_line)
m_ctx = nvm_rq_to_pdu(rqd);
m_ctx->private = meta_line;
- rq_len = rq_ppas * geo->sec_size;
+ rq_len = rq_ppas * geo->c.csecs;
data = ((void *)emeta->buf) + emeta->mem;
bio = pblk_bio_map_addr(pblk, data, rq_ppas, rq_len,
diff --git a/drivers/lightnvm/pblk.h b/drivers/lightnvm/pblk.h
index 282dfc8780e8..67ffb53608f7 100644
--- a/drivers/lightnvm/pblk.h
+++ b/drivers/lightnvm/pblk.h
@@ -551,21 +551,6 @@ struct pblk_line_meta {
unsigned int meta_distance; /* Distance between data and metadata */
};
-struct pblk_addr_format {
- u64 ch_mask;
- u64 lun_mask;
- u64 pln_mask;
- u64 blk_mask;
- u64 pg_mask;
- u64 sec_mask;
- u8 ch_offset;
- u8 lun_offset;
- u8 pln_offset;
- u8 blk_offset;
- u8 pg_offset;
- u8 sec_offset;
-};
-
enum {
PBLK_STATE_RUNNING = 0,
PBLK_STATE_STOPPING = 1,
@@ -585,8 +570,8 @@ struct pblk {
struct pblk_line_mgmt l_mg; /* Line management */
struct pblk_line_meta lm; /* Line metadata */
+ struct nvm_addr_format ppaf;
int ppaf_bitsize;
- struct pblk_addr_format ppaf;
struct pblk_rb rwb;
@@ -941,14 +926,12 @@ static inline int pblk_line_vsc(struct pblk_line *line)
return le32_to_cpu(*line->vsc);
}
-#define NVM_MEM_PAGE_WRITE (8)
-
static inline int pblk_pad_distance(struct pblk *pblk)
{
struct nvm_tgt_dev *dev = pblk->dev;
struct nvm_geo *geo = &dev->geo;
- return NVM_MEM_PAGE_WRITE * geo->all_luns * geo->sec_per_pl;
+ return geo->c.mw_cunits * geo->all_luns * geo->c.ws_opt;
}
static inline int pblk_ppa_to_line(struct ppa_addr p)
@@ -964,15 +947,17 @@ static inline int pblk_ppa_to_pos(struct nvm_geo *geo, struct ppa_addr p)
static inline struct ppa_addr addr_to_gen_ppa(struct pblk *pblk, u64 paddr,
u64 line_id)
{
+ struct nvm_addr_format_12 *ppaf =
+ (struct nvm_addr_format_12 *)&pblk->ppaf;
struct ppa_addr ppa;
ppa.ppa = 0;
ppa.g.blk = line_id;
- ppa.g.pg = (paddr & pblk->ppaf.pg_mask) >> pblk->ppaf.pg_offset;
- ppa.g.lun = (paddr & pblk->ppaf.lun_mask) >> pblk->ppaf.lun_offset;
- ppa.g.ch = (paddr & pblk->ppaf.ch_mask) >> pblk->ppaf.ch_offset;
- ppa.g.pl = (paddr & pblk->ppaf.pln_mask) >> pblk->ppaf.pln_offset;
- ppa.g.sec = (paddr & pblk->ppaf.sec_mask) >> pblk->ppaf.sec_offset;
+ ppa.g.pg = (paddr & ppaf->pg_mask) >> ppaf->pg_offset;
+ ppa.g.lun = (paddr & ppaf->lun_mask) >> ppaf->lun_offset;
+ ppa.g.ch = (paddr & ppaf->ch_mask) >> ppaf->ch_offset;
+ ppa.g.pl = (paddr & ppaf->pln_mask) >> ppaf->pln_offset;
+ ppa.g.sec = (paddr & ppaf->sec_mask) >> ppaf->sect_offset;
return ppa;
}
@@ -980,13 +965,15 @@ static inline struct ppa_addr addr_to_gen_ppa(struct pblk *pblk, u64 paddr,
static inline u64 pblk_dev_ppa_to_line_addr(struct pblk *pblk,
struct ppa_addr p)
{
+ struct nvm_addr_format_12 *ppaf =
+ (struct nvm_addr_format_12 *)&pblk->ppaf;
u64 paddr;
- paddr = (u64)p.g.pg << pblk->ppaf.pg_offset;
- paddr |= (u64)p.g.lun << pblk->ppaf.lun_offset;
- paddr |= (u64)p.g.ch << pblk->ppaf.ch_offset;
- paddr |= (u64)p.g.pl << pblk->ppaf.pln_offset;
- paddr |= (u64)p.g.sec << pblk->ppaf.sec_offset;
+ paddr = (u64)p.g.ch << ppaf->ch_offset;
+ paddr |= (u64)p.g.lun << ppaf->lun_offset;
+ paddr |= (u64)p.g.pg << ppaf->pg_offset;
+ paddr |= (u64)p.g.pl << ppaf->pln_offset;
+ paddr |= (u64)p.g.sec << ppaf->sect_offset;
return paddr;
}
@@ -1003,18 +990,15 @@ static inline struct ppa_addr pblk_ppa32_to_ppa64(struct pblk *pblk, u32 ppa32)
ppa64.c.line = ppa32 & ((~0U) >> 1);
ppa64.c.is_cached = 1;
} else {
- ppa64.g.blk = (ppa32 & pblk->ppaf.blk_mask) >>
- pblk->ppaf.blk_offset;
- ppa64.g.pg = (ppa32 & pblk->ppaf.pg_mask) >>
- pblk->ppaf.pg_offset;
- ppa64.g.lun = (ppa32 & pblk->ppaf.lun_mask) >>
- pblk->ppaf.lun_offset;
- ppa64.g.ch = (ppa32 & pblk->ppaf.ch_mask) >>
- pblk->ppaf.ch_offset;
- ppa64.g.pl = (ppa32 & pblk->ppaf.pln_mask) >>
- pblk->ppaf.pln_offset;
- ppa64.g.sec = (ppa32 & pblk->ppaf.sec_mask) >>
- pblk->ppaf.sec_offset;
+ struct nvm_addr_format_12 *ppaf =
+ (struct nvm_addr_format_12 *)&pblk->ppaf;
+
+ ppa64.g.ch = (ppa32 & ppaf->ch_mask) >> ppaf->ch_offset;
+ ppa64.g.lun = (ppa32 & ppaf->lun_mask) >> ppaf->lun_offset;
+ ppa64.g.blk = (ppa32 & ppaf->blk_mask) >> ppaf->blk_offset;
+ ppa64.g.pg = (ppa32 & ppaf->pg_mask) >> ppaf->pg_offset;
+ ppa64.g.pl = (ppa32 & ppaf->pln_mask) >> ppaf->pln_offset;
+ ppa64.g.sec = (ppa32 & ppaf->sec_mask) >> ppaf->sect_offset;
}
return ppa64;
@@ -1030,12 +1014,15 @@ static inline u32 pblk_ppa64_to_ppa32(struct pblk *pblk, struct ppa_addr ppa64)
ppa32 |= ppa64.c.line;
ppa32 |= 1U << 31;
} else {
- ppa32 |= ppa64.g.blk << pblk->ppaf.blk_offset;
- ppa32 |= ppa64.g.pg << pblk->ppaf.pg_offset;
- ppa32 |= ppa64.g.lun << pblk->ppaf.lun_offset;
- ppa32 |= ppa64.g.ch << pblk->ppaf.ch_offset;
- ppa32 |= ppa64.g.pl << pblk->ppaf.pln_offset;
- ppa32 |= ppa64.g.sec << pblk->ppaf.sec_offset;
+ struct nvm_addr_format_12 *ppaf =
+ (struct nvm_addr_format_12 *)&pblk->ppaf;
+
+ ppa32 |= ppa64.g.ch << ppaf->ch_offset;
+ ppa32 |= ppa64.g.lun << ppaf->lun_offset;
+ ppa32 |= ppa64.g.blk << ppaf->blk_offset;
+ ppa32 |= ppa64.g.pg << ppaf->pg_offset;
+ ppa32 |= ppa64.g.pl << ppaf->pln_offset;
+ ppa32 |= ppa64.g.sec << ppaf->sect_offset;
}
return ppa32;
@@ -1153,7 +1140,7 @@ static inline int pblk_set_progr_mode(struct pblk *pblk, int type)
struct nvm_geo *geo = &dev->geo;
int flags;
- flags = geo->plane_mode >> 1;
+ flags = geo->c.pln_mode >> 1;
if (type == PBLK_WRITE)
flags |= NVM_IO_SCRAMBLE_ENABLE;
@@ -1174,7 +1161,7 @@ static inline int pblk_set_read_mode(struct pblk *pblk, int type)
flags = NVM_IO_SUSPEND | NVM_IO_SCRAMBLE_ENABLE;
if (type == PBLK_READ_SEQUENTIAL)
- flags |= geo->plane_mode >> 1;
+ flags |= geo->c.pln_mode >> 1;
return flags;
}
@@ -1229,10 +1216,10 @@ static inline int pblk_boundary_ppa_checks(struct nvm_tgt_dev *tgt_dev,
if (!ppa->c.is_cached &&
ppa->g.ch < geo->nr_chnls &&
ppa->g.lun < geo->nr_luns &&
- ppa->g.pl < geo->nr_planes &&
- ppa->g.blk < geo->nr_chks &&
- ppa->g.pg < geo->ws_per_chk &&
- ppa->g.sec < geo->sec_per_pg)
+ ppa->g.pl < geo->c.num_pln &&
+ ppa->g.blk < geo->c.num_chk &&
+ ppa->g.pg < geo->c.num_pg &&
+ ppa->g.sec < geo->c.ws_min)
continue;
print_ppa(ppa, "boundary", i);
diff --git a/drivers/nvme/host/lightnvm.c b/drivers/nvme/host/lightnvm.c
index 839c0b96466a..c81e64cc20d7 100644
--- a/drivers/nvme/host/lightnvm.c
+++ b/drivers/nvme/host/lightnvm.c
@@ -152,8 +152,8 @@ struct nvme_nvm_id12_addrf {
__u8 blk_len;
__u8 pg_offset;
__u8 pg_len;
- __u8 sect_offset;
- __u8 sect_len;
+ __u8 sec_offset;
+ __u8 sec_len;
__u8 res[4];
} __packed;
@@ -254,106 +254,157 @@ static inline void _nvme_nvm_check_size(void)
BUILD_BUG_ON(sizeof(struct nvme_nvm_id20) != NVME_IDENTIFY_DATA_SIZE);
}
-static int init_grp(struct nvm_id *nvm_id, struct nvme_nvm_id12 *id12)
+static void nvme_nvm_set_addr_12(struct nvm_addr_format_12 *dst,
+ struct nvme_nvm_id12_addrf *src)
+{
+ dst->ch_len = src->ch_len;
+ dst->lun_len = src->lun_len;
+ dst->blk_len = src->blk_len;
+ dst->pg_len = src->pg_len;
+ dst->pln_len = src->pln_len;
+ dst->sect_len = src->sec_len;
+
+ dst->ch_offset = src->ch_offset;
+ dst->lun_offset = src->lun_offset;
+ dst->blk_offset = src->blk_offset;
+ dst->pg_offset = src->pg_offset;
+ dst->pln_offset = src->pln_offset;
+ dst->sect_offset = src->sec_offset;
+
+ dst->ch_mask = ((1ULL << dst->ch_len) - 1) << dst->ch_offset;
+ dst->lun_mask = ((1ULL << dst->lun_len) - 1) << dst->lun_offset;
+ dst->blk_mask = ((1ULL << dst->blk_len) - 1) << dst->blk_offset;
+ dst->pg_mask = ((1ULL << dst->pg_len) - 1) << dst->pg_offset;
+ dst->pln_mask = ((1ULL << dst->pln_len) - 1) << dst->pln_offset;
+ dst->sec_mask = ((1ULL << dst->sect_len) - 1) << dst->sect_offset;
+}
+
+static int nvme_nvm_setup_12(struct nvme_nvm_id12 *id,
+ struct nvm_dev_geo *dev_geo)
{
struct nvme_nvm_id12_grp *src;
int sec_per_pg, sec_per_pl, pg_per_blk;
- if (id12->cgrps != 1)
+ if (id->cgrps != 1)
return -EINVAL;
- src = &id12->grp;
+ src = &id->grp;
- nvm_id->mtype = src->mtype;
- nvm_id->fmtype = src->fmtype;
+ if (src->mtype != 0) {
+ pr_err("nvm: memory type not supported\n");
+ return -EINVAL;
+ }
+
+ /* 1.2 spec. only reports a single version id - unfold */
+ dev_geo->ver_id = id->ver_id;
- nvm_id->num_ch = src->num_ch;
- nvm_id->num_lun = src->num_lun;
+ dev_geo->nr_chnls = src->num_ch;
+ dev_geo->nr_luns = src->num_lun;
+ dev_geo->all_luns = dev_geo->nr_chnls * dev_geo->nr_luns;
- nvm_id->num_chk = le16_to_cpu(src->num_chk);
- nvm_id->csecs = le16_to_cpu(src->csecs);
- nvm_id->sos = le16_to_cpu(src->sos);
+ dev_geo->c.num_chk = le16_to_cpu(src->num_chk);
+ dev_geo->c.csecs = le16_to_cpu(src->csecs);
+ dev_geo->c.sos = le16_to_cpu(src->sos);
pg_per_blk = le16_to_cpu(src->num_pg);
- sec_per_pg = le16_to_cpu(src->fpg_sz) / nvm_id->csecs;
+ sec_per_pg = le16_to_cpu(src->fpg_sz) / dev_geo->c.csecs;
sec_per_pl = sec_per_pg * src->num_pln;
- nvm_id->clba = sec_per_pl * pg_per_blk;
- nvm_id->ws_per_chk = pg_per_blk;
-
- nvm_id->mpos = le32_to_cpu(src->mpos);
- nvm_id->cpar = le16_to_cpu(src->cpar);
- nvm_id->mccap = le32_to_cpu(src->mccap);
-
- nvm_id->ws_opt = nvm_id->ws_min = sec_per_pg;
- nvm_id->ws_seq = NVM_IO_SNGL_ACCESS;
-
- if (nvm_id->mpos & 0x020202) {
- nvm_id->ws_seq = NVM_IO_DUAL_ACCESS;
- nvm_id->ws_opt <<= 1;
- } else if (nvm_id->mpos & 0x040404) {
- nvm_id->ws_seq = NVM_IO_QUAD_ACCESS;
- nvm_id->ws_opt <<= 2;
+ dev_geo->c.clba = sec_per_pl * pg_per_blk;
+
+ dev_geo->c.ws_min = sec_per_pg;
+ dev_geo->c.ws_opt = sec_per_pg;
+ dev_geo->c.mw_cunits = 8; /* default to MLC safe values */
+
+ dev_geo->c.mccap = le32_to_cpu(src->mccap);
+
+ dev_geo->c.trdt = le32_to_cpu(src->trdt);
+ dev_geo->c.trdm = le32_to_cpu(src->trdm);
+ dev_geo->c.tprt = le32_to_cpu(src->tprt);
+ dev_geo->c.tprm = le32_to_cpu(src->tprm);
+ dev_geo->c.tbet = le32_to_cpu(src->tbet);
+ dev_geo->c.tbem = le32_to_cpu(src->tbem);
+
+ /* 1.2 compatibility */
+ dev_geo->c.vmnt = id->vmnt;
+ dev_geo->c.cap = le32_to_cpu(id->cap);
+ dev_geo->c.dom = le32_to_cpu(id->dom);
+
+ dev_geo->c.mtype = src->mtype;
+ dev_geo->c.fmtype = src->fmtype;
+
+ dev_geo->c.cpar = le16_to_cpu(src->cpar);
+ dev_geo->c.mpos = le32_to_cpu(src->mpos);
+
+ dev_geo->c.pln_mode = NVM_PLANE_SINGLE;
+
+ if (dev_geo->c.mpos & 0x020202) {
+ dev_geo->c.pln_mode = NVM_PLANE_DOUBLE;
+ dev_geo->c.ws_opt <<= 1;
+ } else if (dev_geo->c.mpos & 0x040404) {
+ dev_geo->c.pln_mode = NVM_PLANE_QUAD;
+ dev_geo->c.ws_opt <<= 2;
}
- nvm_id->trdt = le32_to_cpu(src->trdt);
- nvm_id->trdm = le32_to_cpu(src->trdm);
- nvm_id->tprt = le32_to_cpu(src->tprt);
- nvm_id->tprm = le32_to_cpu(src->tprm);
- nvm_id->tbet = le32_to_cpu(src->tbet);
- nvm_id->tbem = le32_to_cpu(src->tbem);
-
- /* 1.2 compatibility */
- nvm_id->num_pln = src->num_pln;
- nvm_id->num_pg = le16_to_cpu(src->num_pg);
- nvm_id->fpg_sz = le16_to_cpu(src->fpg_sz);
+ dev_geo->c.num_pln = src->num_pln;
+ dev_geo->c.num_pg = le16_to_cpu(src->num_pg);
+ dev_geo->c.fpg_sz = le16_to_cpu(src->fpg_sz);
+
+ nvme_nvm_set_addr_12((struct nvm_addr_format_12 *)&dev_geo->c.addrf,
+ &id->ppaf);
return 0;
}
-static int nvme_nvm_setup_12(struct nvm_dev *nvmdev, struct nvm_id *nvm_id,
- struct nvme_nvm_id12 *id)
+static void nvme_nvm_set_addr_20(struct nvm_addr_format *dst,
+ struct nvme_nvm_id20_addrf *src)
{
- nvm_id->ver_id = id->ver_id;
- nvm_id->vmnt = id->vmnt;
- nvm_id->cap = le32_to_cpu(id->cap);
- nvm_id->dom = le32_to_cpu(id->dom);
- memcpy(&nvm_id->ppaf, &id->ppaf,
- sizeof(struct nvm_addr_format));
-
- return init_grp(nvm_id, id);
+ dst->ch_len = src->grp_len;
+ dst->lun_len = src->pu_len;
+ dst->chk_len = src->chk_len;
+ dst->sec_len = src->lba_len;
+
+ dst->sec_offset = 0;
+ dst->chk_offset = dst->sec_len;
+ dst->lun_offset = dst->chk_offset + dst->chk_len;
+ dst->ch_offset = dst->lun_offset + dst->lun_len;
+
+ dst->ch_mask = ((1ULL << dst->ch_len) - 1) << dst->ch_offset;
+ dst->lun_mask = ((1ULL << dst->lun_len) - 1) << dst->lun_offset;
+ dst->chk_mask = ((1ULL << dst->chk_len) - 1) << dst->chk_offset;
+ dst->sec_mask = ((1ULL << dst->sec_len) - 1) << dst->sec_offset;
}
-static int nvme_nvm_setup_20(struct nvm_dev *nvmdev, struct nvm_id *nvm_id,
- struct nvme_nvm_id20 *id)
+static int nvme_nvm_setup_20(struct nvme_nvm_id20 *id,
+ struct nvm_dev_geo *dev_geo)
{
- nvm_id->ver_id = id->mjr;
+ dev_geo->ver_id = id->mjr;
- nvm_id->num_ch = le16_to_cpu(id->num_grp);
- nvm_id->num_lun = le16_to_cpu(id->num_pu);
- nvm_id->num_chk = le32_to_cpu(id->num_chk);
- nvm_id->clba = le32_to_cpu(id->clba);
+ dev_geo->nr_chnls = le16_to_cpu(id->num_grp);
+ dev_geo->nr_luns = le16_to_cpu(id->num_pu);
+ dev_geo->all_luns = dev_geo->nr_chnls * dev_geo->nr_luns;
- nvm_id->ws_min = le32_to_cpu(id->ws_min);
- nvm_id->ws_opt = le32_to_cpu(id->ws_opt);
- nvm_id->mw_cunits = le32_to_cpu(id->mw_cunits);
+ dev_geo->c.num_chk = le32_to_cpu(id->num_chk);
+ dev_geo->c.clba = le32_to_cpu(id->clba);
+ dev_geo->c.csecs = -1; /* Set by nvme identify */
+ dev_geo->c.sos = -1; /* Set bu nvme identify */
- nvm_id->trdt = le32_to_cpu(id->trdt);
- nvm_id->trdm = le32_to_cpu(id->trdm);
- nvm_id->tprt = le32_to_cpu(id->twrt);
- nvm_id->tprm = le32_to_cpu(id->twrm);
- nvm_id->tbet = le32_to_cpu(id->tcrst);
- nvm_id->tbem = le32_to_cpu(id->tcrsm);
+ dev_geo->c.ws_min = le32_to_cpu(id->ws_min);
+ dev_geo->c.ws_opt = le32_to_cpu(id->ws_opt);
+ dev_geo->c.mw_cunits = le32_to_cpu(id->mw_cunits);
- /* calculated values */
- nvm_id->ws_per_chk = nvm_id->clba / nvm_id->ws_min;
+ dev_geo->c.trdt = le32_to_cpu(id->trdt);
+ dev_geo->c.trdm = le32_to_cpu(id->trdm);
+ dev_geo->c.tprt = le32_to_cpu(id->twrt);
+ dev_geo->c.tprm = le32_to_cpu(id->twrm);
+ dev_geo->c.tbet = le32_to_cpu(id->tcrst);
+ dev_geo->c.tbem = le32_to_cpu(id->tcrsm);
- /* 1.2 compatibility */
- nvm_id->ws_seq = NVM_IO_SNGL_ACCESS;
+ nvme_nvm_set_addr_20(&dev_geo->c.addrf, &id->lbaf);
return 0;
}
-static int nvme_nvm_identity(struct nvm_dev *nvmdev, struct nvm_id *nvm_id)
+static int nvme_nvm_identity(struct nvm_dev *nvmdev)
{
struct nvme_ns *ns = nvmdev->q->queuedata;
struct nvme_nvm_id12 *id;
@@ -380,18 +431,18 @@ static int nvme_nvm_identity(struct nvm_dev *nvmdev, struct nvm_id *nvm_id)
*/
switch (id->ver_id) {
case 1:
- ret = nvme_nvm_setup_12(nvmdev, nvm_id, id);
+ ret = nvme_nvm_setup_12(id, &nvmdev->dev_geo);
break;
case 2:
- ret = nvme_nvm_setup_20(nvmdev, nvm_id,
- (struct nvme_nvm_id20 *)id);
+ ret = nvme_nvm_setup_20((struct nvme_nvm_id20 *)id,
+ &nvmdev->dev_geo);
break;
default:
- dev_err(ns->ctrl->device,
- "OCSSD revision not supported (%d)\n",
- nvm_id->ver_id);
+ dev_err(ns->ctrl->device, "OCSSD revision not supported (%d)\n",
+ id->ver_id);
ret = -EINVAL;
}
+
out:
kfree(id);
return ret;
@@ -401,12 +452,12 @@ static int nvme_nvm_get_bb_tbl(struct nvm_dev *nvmdev, struct ppa_addr ppa,
u8 *blks)
{
struct request_queue *q = nvmdev->q;
- struct nvm_geo *geo = &nvmdev->geo;
+ struct nvm_dev_geo *dev_geo = &nvmdev->dev_geo;
struct nvme_ns *ns = q->queuedata;
struct nvme_ctrl *ctrl = ns->ctrl;
struct nvme_nvm_command c = {};
struct nvme_nvm_bb_tbl *bb_tbl;
- int nr_blks = geo->nr_chks * geo->plane_mode;
+ int nr_blks = dev_geo->c.num_chk * dev_geo->c.num_pln;
int tblsz = sizeof(struct nvme_nvm_bb_tbl) + nr_blks;
int ret = 0;
@@ -447,7 +498,7 @@ static int nvme_nvm_get_bb_tbl(struct nvm_dev *nvmdev, struct ppa_addr ppa,
goto out;
}
- memcpy(blks, bb_tbl->blk, geo->nr_chks * geo->plane_mode);
+ memcpy(blks, bb_tbl->blk, dev_geo->c.num_chk * dev_geo->c.num_pln);
out:
kfree(bb_tbl);
return ret;
@@ -815,9 +866,10 @@ int nvme_nvm_ioctl(struct nvme_ns *ns, unsigned int cmd, unsigned long arg)
void nvme_nvm_update_nvm_info(struct nvme_ns *ns)
{
struct nvm_dev *ndev = ns->ndev;
+ struct nvm_dev_geo *dev_geo = &ndev->dev_geo;
- ndev->identity.csecs = ndev->geo.sec_size = 1 << ns->lba_shift;
- ndev->identity.sos = ndev->geo.oob_size = ns->ms;
+ dev_geo->c.csecs = 1 << ns->lba_shift;
+ dev_geo->c.sos = ns->ms;
}
int nvme_nvm_register(struct nvme_ns *ns, char *disk_name, int node)
@@ -850,23 +902,22 @@ static ssize_t nvm_dev_attr_show(struct device *dev,
{
struct nvme_ns *ns = nvme_get_ns_from_dev(dev);
struct nvm_dev *ndev = ns->ndev;
- struct nvm_id *id;
+ struct nvm_dev_geo *dev_geo = &ndev->dev_geo;
struct attribute *attr;
if (!ndev)
return 0;
- id = &ndev->identity;
attr = &dattr->attr;
if (strcmp(attr->name, "version") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->ver_id);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->ver_id);
} else if (strcmp(attr->name, "capabilities") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->cap);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.cap);
} else if (strcmp(attr->name, "read_typ") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->trdt);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.trdt);
} else if (strcmp(attr->name, "read_max") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->trdm);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.trdm);
} else {
return scnprintf(page,
PAGE_SIZE,
@@ -875,75 +926,79 @@ static ssize_t nvm_dev_attr_show(struct device *dev,
}
}
+static ssize_t nvm_dev_attr_show_ppaf(struct nvm_addr_format_12 *ppaf,
+ char *page)
+{
+ return scnprintf(page, PAGE_SIZE,
+ "0x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x\n",
+ ppaf->ch_offset, ppaf->ch_len,
+ ppaf->lun_offset, ppaf->lun_len,
+ ppaf->pln_offset, ppaf->pln_len,
+ ppaf->blk_offset, ppaf->blk_len,
+ ppaf->pg_offset, ppaf->pg_len,
+ ppaf->sect_offset, ppaf->sect_len);
+}
+
static ssize_t nvm_dev_attr_show_12(struct device *dev,
struct device_attribute *dattr, char *page)
{
struct nvme_ns *ns = nvme_get_ns_from_dev(dev);
struct nvm_dev *ndev = ns->ndev;
- struct nvm_id *id;
+ struct nvm_dev_geo *dev_geo = &ndev->dev_geo;
struct attribute *attr;
if (!ndev)
return 0;
- id = &ndev->identity;
attr = &dattr->attr;
if (strcmp(attr->name, "vendor_opcode") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->vmnt);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.vmnt);
} else if (strcmp(attr->name, "device_mode") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->dom);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.dom);
/* kept for compatibility */
} else if (strcmp(attr->name, "media_manager") == 0) {
return scnprintf(page, PAGE_SIZE, "%s\n", "gennvm");
} else if (strcmp(attr->name, "ppa_format") == 0) {
- return scnprintf(page, PAGE_SIZE,
- "0x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x\n",
- id->ppaf.ch_offset, id->ppaf.ch_len,
- id->ppaf.lun_offset, id->ppaf.lun_len,
- id->ppaf.pln_offset, id->ppaf.pln_len,
- id->ppaf.blk_offset, id->ppaf.blk_len,
- id->ppaf.pg_offset, id->ppaf.pg_len,
- id->ppaf.sect_offset, id->ppaf.sect_len);
+ return nvm_dev_attr_show_ppaf((void *)&dev_geo->c.addrf, page);
} else if (strcmp(attr->name, "media_type") == 0) { /* u8 */
- return scnprintf(page, PAGE_SIZE, "%u\n", id->mtype);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.mtype);
} else if (strcmp(attr->name, "flash_media_type") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->fmtype);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.fmtype);
} else if (strcmp(attr->name, "num_channels") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->num_ch);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->nr_chnls);
} else if (strcmp(attr->name, "num_luns") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->num_lun);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->nr_luns);
} else if (strcmp(attr->name, "num_planes") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->num_pln);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.num_pln);
} else if (strcmp(attr->name, "num_blocks") == 0) { /* u16 */
- return scnprintf(page, PAGE_SIZE, "%u\n", id->num_chk);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.num_chk);
} else if (strcmp(attr->name, "num_pages") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->num_pg);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.num_pg);
} else if (strcmp(attr->name, "page_size") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->fpg_sz);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.fpg_sz);
} else if (strcmp(attr->name, "hw_sector_size") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->csecs);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.csecs);
} else if (strcmp(attr->name, "oob_sector_size") == 0) {/* u32 */
- return scnprintf(page, PAGE_SIZE, "%u\n", id->sos);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.sos);
} else if (strcmp(attr->name, "prog_typ") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->tprt);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.tprt);
} else if (strcmp(attr->name, "prog_max") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->tprm);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.tprm);
} else if (strcmp(attr->name, "erase_typ") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->tbet);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.tbet);
} else if (strcmp(attr->name, "erase_max") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->tbem);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.tbem);
} else if (strcmp(attr->name, "multiplane_modes") == 0) {
- return scnprintf(page, PAGE_SIZE, "0x%08x\n", id->mpos);
+ return scnprintf(page, PAGE_SIZE, "0x%08x\n", dev_geo->c.mpos);
} else if (strcmp(attr->name, "media_capabilities") == 0) {
- return scnprintf(page, PAGE_SIZE, "0x%08x\n", id->mccap);
+ return scnprintf(page, PAGE_SIZE, "0x%08x\n", dev_geo->c.mccap);
} else if (strcmp(attr->name, "max_phys_secs") == 0) {
return scnprintf(page, PAGE_SIZE, "%u\n", NVM_MAX_VLBA);
} else {
- return scnprintf(page,
- PAGE_SIZE,
- "Unhandled attr(%s) in `nvm_dev_attr_show_12`\n",
- attr->name);
+ return scnprintf(page, PAGE_SIZE,
+ "Unhandled attr(%s) in `nvm_dev_attr_show_12`\n",
+ attr->name);
}
}
@@ -952,42 +1007,40 @@ static ssize_t nvm_dev_attr_show_20(struct device *dev,
{
struct nvme_ns *ns = nvme_get_ns_from_dev(dev);
struct nvm_dev *ndev = ns->ndev;
- struct nvm_id *id;
+ struct nvm_dev_geo *dev_geo = &ndev->dev_geo;
struct attribute *attr;
if (!ndev)
return 0;
- id = &ndev->identity;
attr = &dattr->attr;
if (strcmp(attr->name, "groups") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->num_ch);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->nr_chnls);
} else if (strcmp(attr->name, "punits") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->num_lun);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->nr_luns);
} else if (strcmp(attr->name, "chunks") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->num_chk);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.num_chk);
} else if (strcmp(attr->name, "clba") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->clba);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.clba);
} else if (strcmp(attr->name, "ws_min") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->ws_min);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.ws_min);
} else if (strcmp(attr->name, "ws_opt") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->ws_opt);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.ws_opt);
} else if (strcmp(attr->name, "mw_cunits") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->mw_cunits);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.mw_cunits);
} else if (strcmp(attr->name, "write_typ") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->tprt);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.tprt);
} else if (strcmp(attr->name, "write_max") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->tprm);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.tprm);
} else if (strcmp(attr->name, "reset_typ") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->tbet);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.tbet);
} else if (strcmp(attr->name, "reset_max") == 0) {
- return scnprintf(page, PAGE_SIZE, "%u\n", id->tbem);
+ return scnprintf(page, PAGE_SIZE, "%u\n", dev_geo->c.tbem);
} else {
- return scnprintf(page,
- PAGE_SIZE,
- "Unhandled attr(%s) in `nvm_dev_attr_show_20`\n",
- attr->name);
+ return scnprintf(page, PAGE_SIZE,
+ "Unhandled attr(%s) in `nvm_dev_attr_show_20`\n",
+ attr->name);
}
}
@@ -1106,10 +1159,13 @@ static const struct attribute_group nvm_dev_attr_group_20 = {
int nvme_nvm_register_sysfs(struct nvme_ns *ns)
{
- if (!ns->ndev)
+ struct nvm_dev *ndev = ns->ndev;
+ struct nvm_dev_geo *dev_geo = &ndev->dev_geo;
+
+ if (!ndev)
return -EINVAL;
- switch (ns->ndev->identity.ver_id) {
+ switch (dev_geo->ver_id) {
case 1:
return sysfs_create_group(&disk_to_dev(ns->disk)->kobj,
&nvm_dev_attr_group_12);
@@ -1123,7 +1179,10 @@ int nvme_nvm_register_sysfs(struct nvme_ns *ns)
void nvme_nvm_unregister_sysfs(struct nvme_ns *ns)
{
- switch (ns->ndev->identity.ver_id) {
+ struct nvm_dev *ndev = ns->ndev;
+ struct nvm_dev_geo *dev_geo = &ndev->dev_geo;
+
+ switch (dev_geo->ver_id) {
case 1:
sysfs_remove_group(&disk_to_dev(ns->disk)->kobj,
&nvm_dev_attr_group_12);
diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h
index e55b10573c99..18e3751b1632 100644
--- a/include/linux/lightnvm.h
+++ b/include/linux/lightnvm.h
@@ -50,7 +50,7 @@ struct nvm_id;
struct nvm_dev;
struct nvm_tgt_dev;
-typedef int (nvm_id_fn)(struct nvm_dev *, struct nvm_id *);
+typedef int (nvm_id_fn)(struct nvm_dev *);
typedef int (nvm_op_bb_tbl_fn)(struct nvm_dev *, struct ppa_addr, u8 *);
typedef int (nvm_op_set_bb_fn)(struct nvm_dev *, struct ppa_addr *, int, int);
typedef int (nvm_submit_io_fn)(struct nvm_dev *, struct nvm_rq *);
@@ -152,62 +152,107 @@ struct nvm_id_lp_tbl {
struct nvm_id_lp_mlc mlc;
};
-struct nvm_addr_format {
- u8 ch_offset;
+struct nvm_addr_format_12 {
u8 ch_len;
- u8 lun_offset;
u8 lun_len;
- u8 pln_offset;
+ u8 blk_len;
+ u8 pg_len;
u8 pln_len;
+ u8 sect_len;
+
+ u8 ch_offset;
+ u8 lun_offset;
u8 blk_offset;
- u8 blk_len;
u8 pg_offset;
- u8 pg_len;
+ u8 pln_offset;
u8 sect_offset;
- u8 sect_len;
+
+ u64 ch_mask;
+ u64 lun_mask;
+ u64 blk_mask;
+ u64 pg_mask;
+ u64 pln_mask;
+ u64 sec_mask;
+};
+
+struct nvm_addr_format {
+ u8 ch_len;
+ u8 lun_len;
+ u8 chk_len;
+ u8 sec_len;
+ u8 rsv_len[2];
+
+ u8 ch_offset;
+ u8 lun_offset;
+ u8 chk_offset;
+ u8 sec_offset;
+ u8 rsv_off[2];
+
+ u64 ch_mask;
+ u64 lun_mask;
+ u64 chk_mask;
+ u64 sec_mask;
+ u64 rsv_mask[2];
};
-struct nvm_id {
- u8 ver_id;
+/* Device common geometry */
+struct nvm_common_geo {
+ /* chunk geometry */
+ u32 num_chk; /* chunks per lun */
+ u32 clba; /* sectors per chunk */
+ u16 csecs; /* sector size */
+ u16 sos; /* out-of-band area size */
+
+ /* device write constrains */
+ u32 ws_min; /* minimum write size */
+ u32 ws_opt; /* optimal write size */
+ u32 mw_cunits; /* distance required for successful read */
+
+ /* device capabilities */
+ u32 mccap;
+
+ /* device timings */
+ u32 trdt; /* Avg. Tread (ns) */
+ u32 trdm; /* Max Tread (ns) */
+ u32 tprt; /* Avg. Tprog (ns) */
+ u32 tprm; /* Max Tprog (ns) */
+ u32 tbet; /* Avg. Terase (ns) */
+ u32 tbem; /* Max Terase (ns) */
+
+ /* generic address format */
+ struct nvm_addr_format addrf;
+
+ /* 1.2 compatibility */
u8 vmnt;
u32 cap;
u32 dom;
- struct nvm_addr_format ppaf;
-
- u8 num_ch;
- u8 num_lun;
- u16 num_chk;
- u16 clba;
- u16 csecs;
- u16 sos;
-
- u32 ws_min;
- u32 ws_opt;
- u32 mw_cunits;
-
- u32 trdt;
- u32 trdm;
- u32 tprt;
- u32 tprm;
- u32 tbet;
- u32 tbem;
- u32 mpos;
- u32 mccap;
- u16 cpar;
-
- /* calculated values */
- u16 ws_seq;
- u16 ws_per_chk;
-
- /* 1.2 compatibility */
u8 mtype;
u8 fmtype;
+ u16 cpar;
+ u32 mpos;
+
u8 num_pln;
+ u8 pln_mode;
u16 num_pg;
u16 fpg_sz;
-} __packed;
+};
+
+/* Device identified geometry */
+struct nvm_dev_geo {
+ /* device reported version */
+ u8 ver_id;
+
+ /* full device geometry */
+ u16 nr_chnls;
+ u16 nr_luns;
+
+ /* calculated values */
+ u16 all_luns;
+
+ struct nvm_common_geo c;
+};
struct nvm_target {
struct list_head list;
@@ -274,36 +319,22 @@ enum {
NVM_BLK_ST_BAD = 0x8, /* Bad block */
};
-
-/* Device generic information */
+/* Instance geometry */
struct nvm_geo {
- /* generic geometry */
+ /* instance specific geometry */
int nr_chnls;
- int all_luns; /* across channels */
- int nr_luns; /* per channel */
- int nr_chks; /* per lun */
-
- int sec_size;
- int oob_size;
- int mccap;
-
- int sec_per_chk;
- int sec_per_lun;
-
- int ws_min;
- int ws_opt;
- int ws_seq;
- int ws_per_chk;
+ int nr_luns; /* per channel */
int op;
- struct nvm_addr_format ppaf;
+ /* common geometry */
+ struct nvm_common_geo c;
- /* Legacy 1.2 specific geometry */
- int plane_mode; /* drive device in single, double or quad mode */
- int nr_planes;
- int sec_per_pg; /* only sectors for a single page */
- int sec_per_pl; /* all sectors across planes */
+ /* calculated values */
+ int all_luns; /* across channels */
+ int all_chunks; /* across channels */
+
+ sector_t total_secs; /* across channels */
};
/* sub-device structure */
@@ -314,9 +345,6 @@ struct nvm_tgt_dev {
/* Base ppas for target LUNs */
struct ppa_addr *luns;
- sector_t total_secs;
-
- struct nvm_id identity;
struct request_queue *q;
struct nvm_dev *parent;
@@ -329,15 +357,11 @@ struct nvm_dev {
struct list_head devices;
/* Device information */
- struct nvm_geo geo;
-
- unsigned long total_secs;
+ struct nvm_dev_geo dev_geo;
unsigned long *lun_map;
void *dma_pool;
- struct nvm_id identity;
-
/* Backend device */
struct request_queue *q;
char name[DISK_NAME_LEN];
@@ -357,14 +381,16 @@ static inline struct ppa_addr generic_to_dev_addr(struct nvm_tgt_dev *tgt_dev,
struct ppa_addr r)
{
struct nvm_geo *geo = &tgt_dev->geo;
+ struct nvm_addr_format_12 *ppaf =
+ (struct nvm_addr_format_12 *)&geo->c.addrf;
struct ppa_addr l;
- l.ppa = ((u64)r.g.blk) << geo->ppaf.blk_offset;
- l.ppa |= ((u64)r.g.pg) << geo->ppaf.pg_offset;
- l.ppa |= ((u64)r.g.sec) << geo->ppaf.sect_offset;
- l.ppa |= ((u64)r.g.pl) << geo->ppaf.pln_offset;
- l.ppa |= ((u64)r.g.lun) << geo->ppaf.lun_offset;
- l.ppa |= ((u64)r.g.ch) << geo->ppaf.ch_offset;
+ l.ppa = ((u64)r.g.ch) << ppaf->ch_offset;
+ l.ppa |= ((u64)r.g.lun) << ppaf->lun_offset;
+ l.ppa |= ((u64)r.g.blk) << ppaf->blk_offset;
+ l.ppa |= ((u64)r.g.pg) << ppaf->pg_offset;
+ l.ppa |= ((u64)r.g.pl) << ppaf->pln_offset;
+ l.ppa |= ((u64)r.g.sec) << ppaf->sect_offset;
return l;
}
@@ -373,24 +399,18 @@ static inline struct ppa_addr dev_to_generic_addr(struct nvm_tgt_dev *tgt_dev,
struct ppa_addr r)
{
struct nvm_geo *geo = &tgt_dev->geo;
+ struct nvm_addr_format_12 *ppaf =
+ (struct nvm_addr_format_12 *)&geo->c.addrf;
struct ppa_addr l;
l.ppa = 0;
- /*
- * (r.ppa << X offset) & X len bitmask. X eq. blk, pg, etc.
- */
- l.g.blk = (r.ppa >> geo->ppaf.blk_offset) &
- (((1 << geo->ppaf.blk_len) - 1));
- l.g.pg |= (r.ppa >> geo->ppaf.pg_offset) &
- (((1 << geo->ppaf.pg_len) - 1));
- l.g.sec |= (r.ppa >> geo->ppaf.sect_offset) &
- (((1 << geo->ppaf.sect_len) - 1));
- l.g.pl |= (r.ppa >> geo->ppaf.pln_offset) &
- (((1 << geo->ppaf.pln_len) - 1));
- l.g.lun |= (r.ppa >> geo->ppaf.lun_offset) &
- (((1 << geo->ppaf.lun_len) - 1));
- l.g.ch |= (r.ppa >> geo->ppaf.ch_offset) &
- (((1 << geo->ppaf.ch_len) - 1));
+
+ l.g.ch = (r.ppa & ppaf->ch_mask) >> ppaf->ch_offset;
+ l.g.lun = (r.ppa & ppaf->lun_mask) >> ppaf->lun_offset;
+ l.g.blk = (r.ppa & ppaf->blk_mask) >> ppaf->blk_offset;
+ l.g.pg = (r.ppa & ppaf->pg_mask) >> ppaf->pg_offset;
+ l.g.pl = (r.ppa & ppaf->pln_mask) >> ppaf->pln_offset;
+ l.g.sec = (r.ppa & ppaf->sec_mask) >> ppaf->sect_offset;
return l;
}
--
2.7.4
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