| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <49204a74-0ce5-8855-b659-04795b69e015@lightnvm.io>
Date: Thu, 1 Mar 2018 11:22:18 +0100
From: Matias Bjørling <mb@...htnvm.io>
To: Javier González <jg@...htnvm.io>
Cc: linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-nvme@...ts.infradead.org,
Javier González <javier@...xlabs.com>
Subject: Re: [PATCH 01/15] lightnvm: simplify geometry structure.
On 02/28/2018 04:49 PM, 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 nvm_geo, which can be used by
> (i) the underlying device to describe the geometry of the whole device,
> and (ii) instances to describe their geometry independently.
>
> Signed-off-by: Javier González <javier@...xlabs.com>
> ---
> drivers/lightnvm/core.c | 70 +++-----
> drivers/lightnvm/pblk-core.c | 16 +-
> drivers/lightnvm/pblk-gc.c | 2 +-
> drivers/lightnvm/pblk-init.c | 119 +++++++-------
> 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 | 87 +++++-----
> drivers/nvme/host/lightnvm.c | 341 +++++++++++++++++++++++----------------
> include/linux/lightnvm.h | 200 +++++++++++------------
> 12 files changed, 465 insertions(+), 429 deletions(-)
>
> diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
> index 19c46ebb1b91..9a417d9cdf0c 100644
> --- a/drivers/lightnvm/core.c
> +++ b/drivers/lightnvm/core.c
> @@ -155,7 +155,7 @@ static struct nvm_tgt_dev *nvm_create_tgt_dev(struct nvm_dev *dev,
> 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;
> @@ -215,18 +215,23 @@ static struct nvm_tgt_dev *nvm_create_tgt_dev(struct nvm_dev *dev,
> if (!tgt_dev)
> goto err_ch;
>
> + /* Inherit device geometry from parent */
> 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.nr_chks;
> +
> tgt_dev->geo.op = op;
> - tgt_dev->total_secs = nr_luns * tgt_dev->geo.sec_per_lun;
> +
> + sec_per_lun = dev->geo.clba * dev->geo.nr_chks;
> + tgt_dev->geo.total_secs = nr_luns * sec_per_lun;
> +
> 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;
> @@ -296,8 +301,6 @@ static int __nvm_config_simple(struct nvm_dev *dev,
> static int __nvm_config_extended(struct nvm_dev *dev,
> struct nvm_ioctl_create_extended *e)
> {
> - struct nvm_geo *geo = &dev->geo;
> -
> if (e->lun_begin == 0xFFFF && e->lun_end == 0xFFFF) {
> e->lun_begin = 0;
> e->lun_end = dev->geo.all_luns - 1;
> @@ -311,7 +314,7 @@ 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)
> @@ -406,7 +409,7 @@ 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->geo.csecs >> 9) * NVM_MAX_VLBA);
>
> set_capacity(tdisk, tt->capacity(targetdata));
> add_disk(tdisk);
> @@ -841,40 +844,9 @@ 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;
> 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),
> sizeof(unsigned long), GFP_KERNEL);
> if (!dev->lun_map)
> @@ -913,16 +885,14 @@ static int nvm_init(struct nvm_dev *dev)
> struct nvm_geo *geo = &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",
> + geo->ver_id,
> + geo->vmnt);
>
> ret = nvm_core_init(dev);
> if (ret) {
> @@ -930,10 +900,10 @@ 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, geo->ws_min, geo->ws_opt,
> + geo->nr_chks, geo->all_luns,
> + 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 8848443a0721..169589ddd457 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->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->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->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->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->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->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->ws_opt);
> + emeta_secs -= geo->ws_opt;
> }
> }
>
> diff --git a/drivers/lightnvm/pblk-gc.c b/drivers/lightnvm/pblk-gc.c
> index 320f99af99e9..6851a5c67189 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->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 25fc70ca07f7..9b5ee05c3028 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->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->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->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->mw_cunits * geo->all_luns;
>
> if (pblk_init_global_caches(pblk))
> return -ENOMEM;
> @@ -552,18 +567,18 @@ 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->csecs);
> + lm->emeta_len[1] = lm->emeta_sec[1] * geo->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->csecs);
> + lm->emeta_len[2] = lm->emeta_sec[2] * geo->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->csecs);
> + lm->emeta_len[3] = lm->emeta_sec[3] * geo->csecs;
>
> lm->vsc_list_len = l_mg->nr_lines * sizeof(u32);
>
> @@ -594,13 +609,13 @@ 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->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->clba);
>
> - pblk->capacity = (provisioned - blk_meta) * geo->sec_per_chk;
> + pblk->capacity = (provisioned - blk_meta) * geo->clba;
>
> atomic_set(&pblk->rl.free_blocks, nr_free_blks);
> atomic_set(&pblk->rl.free_user_blocks, nr_free_blks);
> @@ -711,10 +726,10 @@ 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->ws_opt * (geo->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);
> @@ -725,19 +740,13 @@ 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->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->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);
> @@ -751,8 +760,8 @@ 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->ws_opt;
> + lm->smeta_len = lm->smeta_sec * geo->csecs;
>
> smeta_len = sizeof(struct line_smeta) + lm->lun_bitmap_len;
> if (smeta_len > lm->smeta_len) {
> @@ -765,8 +774,8 @@ 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->ws_opt;
> + lm->emeta_len[0] = lm->emeta_sec[0] * geo->csecs;
>
> emeta_len = calc_emeta_len(pblk);
> if (emeta_len > lm->emeta_len[0]) {
> @@ -779,7 +788,7 @@ 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->clba);
>
> if (lm->min_blk_line > lm->blk_per_line) {
> pr_err("pblk: config. not supported. Min. LUN in line:%d\n",
> @@ -803,9 +812,9 @@ 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->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->ws_opt);
>
> INIT_LIST_HEAD(&l_mg->free_list);
> INIT_LIST_HEAD(&l_mg->corrupt_list);
> @@ -982,9 +991,9 @@ 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.dom & NVM_RSP_L2P) {
> pr_err("pblk: host-side L2P table not supported. (%x)\n",
> - dev->identity.dom);
> + dev->geo.dom);
> return ERR_PTR(-EINVAL);
> }
>
> @@ -1092,7 +1101,7 @@ 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->clba * geo->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..9eee10f69df0 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->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..26356429dc72 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->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->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->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->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->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->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->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..883a7113b19d 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->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 1680ce0a828d..33199c6af267 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->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);
Is it on purpose here that the code breaks user-space by changing the
sysfs print format?
>
> 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);
Similarily here.
>
> 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->clba);
>
> return sz;
> }
> diff --git a/drivers/lightnvm/pblk-write.c b/drivers/lightnvm/pblk-write.c
> index aae86ed60b98..3e6f1ebd743a 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->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 f0309d8172c0..b29c1e6698aa 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->mw_cunits * geo->all_luns * geo->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;
> @@ -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.pl < geo->num_pln &&
> ppa->g.blk < geo->nr_chks &&
> - ppa->g.pg < geo->ws_per_chk &&
> - ppa->g.sec < geo->sec_per_pg)
> + ppa->g.pg < geo->num_pg &&
> + ppa->g.sec < geo->ws_min)
> continue;
>
> print_ppa(ppa, "boundary", i);
> diff --git a/drivers/nvme/host/lightnvm.c b/drivers/nvme/host/lightnvm.c
> index 839c0b96466a..e276ace28c64 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 +254,161 @@ 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_geo *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;
> + }
> +
> + geo->ver_id = id->ver_id;
> +
> + geo->nr_chnls = src->num_ch;
> + geo->nr_luns = src->num_lun;
> + geo->all_luns = geo->nr_chnls * geo->nr_luns;
>
> - nvm_id->num_ch = src->num_ch;
> - nvm_id->num_lun = src->num_lun;
> + geo->nr_chks = le16_to_cpu(src->num_chk);
>
> - 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);
> + geo->csecs = le16_to_cpu(src->csecs);
> + geo->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) / geo->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;
> + geo->clba = sec_per_pl * pg_per_blk;
> +
> + geo->all_chunks = geo->all_luns * geo->nr_chks;
> + geo->total_secs = geo->clba * geo->all_chunks;
> +
> + geo->ws_min = sec_per_pg;
> + geo->ws_opt = sec_per_pg;
> + geo->mw_cunits = geo->ws_opt << 3; /* default to MLC safe values */
> +
> + geo->mccap = le32_to_cpu(src->mccap);
> +
> + geo->trdt = le32_to_cpu(src->trdt);
> + geo->trdm = le32_to_cpu(src->trdm);
> + geo->tprt = le32_to_cpu(src->tprt);
> + geo->tprm = le32_to_cpu(src->tprm);
> + geo->tbet = le32_to_cpu(src->tbet);
> + geo->tbem = le32_to_cpu(src->tbem);
> +
> + /* 1.2 compatibility */
> + geo->vmnt = id->vmnt;
> + geo->cap = le32_to_cpu(id->cap);
> + geo->dom = le32_to_cpu(id->dom);
> +
> + geo->mtype = src->mtype;
> + geo->fmtype = src->fmtype;
> +
> + geo->cpar = le16_to_cpu(src->cpar);
> + geo->mpos = le32_to_cpu(src->mpos);
> +
> + geo->plane_mode = NVM_PLANE_SINGLE;
> +
> + if (geo->mpos & 0x020202) {
> + geo->plane_mode = NVM_PLANE_DOUBLE;
> + geo->ws_opt <<= 1;
> + } else if (geo->mpos & 0x040404) {
> + geo->plane_mode = NVM_PLANE_QUAD;
> + geo->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);
> + geo->num_pln = src->num_pln;
> + geo->num_pg = le16_to_cpu(src->num_pg);
> + geo->fpg_sz = le16_to_cpu(src->fpg_sz);
> +
> + nvme_nvm_set_addr_12((struct nvm_addr_format_12 *)&geo->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_geo *geo)
> {
> - nvm_id->ver_id = id->mjr;
> + geo->ver_id = id->mjr;
> +
> + geo->nr_chnls = le16_to_cpu(id->num_grp);
> + geo->nr_luns = le16_to_cpu(id->num_pu);
> + geo->all_luns = geo->nr_chnls * geo->nr_luns;
>
> - 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);
> + geo->nr_chks = le32_to_cpu(id->num_chk);
> + geo->clba = le32_to_cpu(id->clba);
>
> - 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);
> + geo->all_chunks = geo->all_luns * geo->nr_chks;
> + geo->total_secs = geo->clba * geo->all_chunks;
>
> - 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);
> + geo->ws_min = le32_to_cpu(id->ws_min);
> + geo->ws_opt = le32_to_cpu(id->ws_opt);
> + geo->mw_cunits = le32_to_cpu(id->mw_cunits);
>
> - /* calculated values */
> - nvm_id->ws_per_chk = nvm_id->clba / nvm_id->ws_min;
> + geo->trdt = le32_to_cpu(id->trdt);
> + geo->trdm = le32_to_cpu(id->trdm);
> + geo->tprt = le32_to_cpu(id->twrt);
> + geo->tprm = le32_to_cpu(id->twrm);
> + geo->tbet = le32_to_cpu(id->tcrst);
> + geo->tbem = le32_to_cpu(id->tcrsm);
>
> - /* 1.2 compatibility */
> - nvm_id->ws_seq = NVM_IO_SNGL_ACCESS;
> + nvme_nvm_set_addr_20(&geo->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 +435,18 @@ 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->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->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;
> @@ -406,7 +461,7 @@ static int nvme_nvm_get_bb_tbl(struct nvm_dev *nvmdev, struct ppa_addr ppa,
> 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 = geo->nr_chks * geo->num_pln;
> int tblsz = sizeof(struct nvme_nvm_bb_tbl) + nr_blks;
> int ret = 0;
>
> @@ -447,7 +502,7 @@ 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, geo->nr_chks * geo->num_pln);
> out:
> kfree(bb_tbl);
> return ret;
> @@ -815,9 +870,10 @@ 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_geo *geo = &ndev->geo;
>
> - ndev->identity.csecs = ndev->geo.sec_size = 1 << ns->lba_shift;
> - ndev->identity.sos = ndev->geo.oob_size = ns->ms;
> + geo->csecs = 1 << ns->lba_shift;
> + geo->sos = ns->ms;
> }
>
> int nvme_nvm_register(struct nvme_ns *ns, char *disk_name, int node)
> @@ -850,23 +906,22 @@ 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_geo *geo = &ndev->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", 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", geo->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", geo->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", geo->trdm);
> } else {
> return scnprintf(page,
> PAGE_SIZE,
> @@ -875,75 +930,79 @@ 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_geo *geo = &ndev->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", geo->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", geo->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 *)&geo->addrf, page);
Why do the code here cast to void *, and not to the address format data
structure?
Have you thought about doing the cast directly here, instead of making a
function for it?
> } 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", geo->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", geo->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", 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", 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", geo->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", geo->nr_chks);
> } 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", geo->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", geo->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", geo->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", geo->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", geo->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", geo->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", geo->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", geo->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", geo->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", geo->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 +1011,40 @@ 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_geo *geo = &ndev->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", 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", 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", geo->nr_chks);
> } else if (strcmp(attr->name, "clba") == 0) {
> - return scnprintf(page, PAGE_SIZE, "%u\n", id->clba);
> + return scnprintf(page, PAGE_SIZE, "%u\n", geo->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", geo->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", geo->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", geo->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", geo->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", geo->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", geo->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", geo->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 +1163,13 @@ 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_geo *geo = &ndev->geo;
> +
> + if (!ndev)
> return -EINVAL;
>
> - switch (ns->ndev->identity.ver_id) {
> + switch (geo->ver_id) {
> case 1:
> return sysfs_create_group(&disk_to_dev(ns->disk)->kobj,
> &nvm_dev_attr_group_12);
> @@ -1123,7 +1183,10 @@ 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_geo *geo = &ndev->geo;
> +
> + switch (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..16255fcd5250 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 +152,48 @@ struct nvm_id_lp_tbl {
> struct nvm_id_lp_mlc mlc;
> };
>
> -struct nvm_addr_format {
> - u8 ch_offset;
> +struct nvm_addr_format_12 {
I can see in a couple of places a statement has to be over two lines due
to the length of writing out nvm_addr_format_12, would it make sense to
shorthand it to nvm_addrf_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;
> -};
> -
> -struct nvm_id {
> - u8 ver_id;
> - 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;
> + u64 ch_mask;
> + u64 lun_mask;
> + u64 blk_mask;
> + u64 pg_mask;
> + u64 pln_mask;
> + u64 sec_mask;
> +};
>
> - u8 num_pln;
> - u16 num_pg;
> - u16 fpg_sz;
> -} __packed;
> +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_target {
> struct list_head list;
> @@ -274,36 +260,63 @@ enum {
> NVM_BLK_ST_BAD = 0x8, /* Bad block */
> };
>
> -
> -/* Device generic information */
> +/* Instance geometry */
> struct nvm_geo {
> - /* generic geometry */
> + /* device reported version */
> + u8 ver_id;
> +
> + /* instance specific geometry */
> int nr_chnls;
> - int all_luns; /* across channels */
> - int nr_luns; /* per channel */
> - int nr_chks; /* per lun */
> + int nr_luns; /* per channel */
>
> - int sec_size;
> - int oob_size;
> - int mccap;
> + /* calculated values */
> + int all_luns; /* across channels */
> + int all_chunks; /* across channels */
>
> - int sec_per_chk;
> - int sec_per_lun;
> + int op; /* over-provision in instance */
>
> - int ws_min;
> - int ws_opt;
> - int ws_seq;
> - int ws_per_chk;
> + sector_t total_secs; /* across channels */
>
> - int op;
> + /* chunk geometry */
> + u32 nr_chks; /* chunks per lun */
> + u32 clba; /* sectors per chunk */
> + u16 csecs; /* sector size */
> + u16 sos; /* out-of-band area size */
>
> - struct nvm_addr_format ppaf;
> + /* device write constrains */
> + u32 ws_min; /* minimum write size */
> + u32 ws_opt; /* optimal write size */
> + u32 mw_cunits; /* distance required for successful read */
>
> - /* 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 */
> + /* 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;
> +
> + u8 mtype;
> + u8 fmtype;
> +
> + u16 cpar;
> + u32 mpos;
> +
> + u8 num_pln;
> + u8 plane_mode;
> + u16 num_pg;
> + u16 fpg_sz;
> };
>
> /* sub-device structure */
> @@ -314,9 +327,6 @@ 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;
> @@ -331,13 +341,9 @@ struct nvm_dev {
> /* Device information */
> struct nvm_geo geo;
>
> - unsigned long total_secs;
> -
> unsigned long *lun_map;
> void *dma_pool;
>
> - struct nvm_id identity;
> -
> /* Backend device */
> struct request_queue *q;
> char name[DISK_NAME_LEN];
> @@ -357,14 +363,16 @@ 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->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 +381,18 @@ 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->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;
> }
>
Looks good to me,
Powered by blists - more mailing lists