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Message-ID: <C2488688-5E97-4D50-AF3E-1737BC4EC2B4@cnexlabs.com>
Date: Thu, 22 Feb 2018 07:44:38 +0000
From: Javier Gonzalez <javier@...xlabs.com>
To: Matias Bjørling <mb@...htnvm.io>
CC: "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-nvme@...ts.infradead.org" <linux-nvme@...ts.infradead.org>
Subject: Re: [PATCH 01/20] lightnvm: simplify geometry structure.
> On 22 Feb 2018, at 08.25, Matias Bjørling <mb@...htnvm.io> wrote:
>
> On 02/21/2018 10:26 AM, Javier González wrote:
>> 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;
>> }
>
> Thanks for the patch. I appreciate the work, but it is not the way I
> want the 2.0 representation to go. The 2.0 variables should stay in
> the nvm_geo data structure, and then if any 1.2 variables are on the
> side, they can be in a substructure.
I don't understand. Everything is in nvm_geo, with the only different
that there is nvm_common_geo, which contains the shared geometry between
all instances. As mentioned before, if only having nvm_geo, then we are
truncating the structure for each instance with different channel/lun
values, which is very from a target perspective (the target can access
the underlying device's values, which is _very_ error prone). This
structure represents all 2.0 variables as they are.I can move all 1.2
variables to a sub structure if that helps.
If this is not it, can you explain in detail what the problem is? In
pblk, I don't want to deal with a device-centric structure and variables
spread out across what was identity and nvm_geo, I want a single
structure that contains everything, which is the motivation for this
patch.
Javier
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