From e46f4e4822bdecf9bcbc2e71b2a3ae7f37464a2d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Javier=20Gonz=C3=A1lez?= Date: Fri, 30 Mar 2018 00:05:10 +0200 Subject: [PATCH] lightnvm: simplify geometry structure MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe --- drivers/lightnvm/core.c | 70 ++----- drivers/lightnvm/pblk-core.c | 16 +- drivers/lightnvm/pblk-gc.c | 2 +- drivers/lightnvm/pblk-init.c | 113 +++++----- drivers/lightnvm/pblk-read.c | 2 +- drivers/lightnvm/pblk-recovery.c | 14 +- drivers/lightnvm/pblk-rl.c | 2 +- drivers/lightnvm/pblk-sysfs.c | 35 ++-- drivers/lightnvm/pblk-write.c | 2 +- drivers/lightnvm/pblk.h | 83 +++----- drivers/nvme/host/lightnvm.c | 343 ++++++++++++++++++------------- include/linux/lightnvm.h | 196 +++++++++--------- 12 files changed, 452 insertions(+), 426 deletions(-) diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c index c4f12b1ae8b8..9dec936ac1dc 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 5c363ccde0e3..52c0c3e5ec6e 100644 --- a/drivers/lightnvm/pblk-core.c +++ b/drivers/lightnvm/pblk-core.c @@ -613,7 +613,7 @@ next_rq: 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, @@ -1034,17 +1034,17 @@ 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; } /* 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; @@ -1063,10 +1063,10 @@ 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 31f17d6f14ee..7143b0f740fb 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 8f1d622801df..2fca27d0a9b5 100644 --- a/drivers/lightnvm/pblk-init.c +++ b/drivers/lightnvm/pblk-init.c @@ -179,7 +179,7 @@ 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); } @@ -187,18 +187,10 @@ 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_addrf_12 *dst) { - struct nvm_tgt_dev *dev = pblk->dev; - struct nvm_geo *geo = &dev->geo; - struct nvm_addr_format ppaf = geo->ppaf; - int mod, power_len; - - 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; - } + struct nvm_addrf_12 *src = (struct nvm_addrf_12 *)&geo->addrf; + int power_len; /* Re-calculate channel and lun format to adapt to configuration */ power_len = get_count_order(geo->nr_chnls); @@ -206,34 +198,50 @@ 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; } @@ -303,10 +311,9 @@ static int pblk_core_init(struct pblk *pblk) atomic64_set(&pblk->nr_flush, 0); pblk->nr_flush_rst = 0; - 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; - 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); @@ -583,18 +590,18 @@ 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); @@ -625,13 +632,13 @@ 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); @@ -783,7 +790,7 @@ static int pblk_line_meta_init(struct pblk *pblk) unsigned int smeta_len, emeta_len; int i; - 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); @@ -797,8 +804,8 @@ static int pblk_line_meta_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) { @@ -811,8 +818,8 @@ add_smeta_page: */ 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]) { @@ -825,7 +832,7 @@ add_emeta_page: 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", @@ -1009,9 +1016,9 @@ 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); } @@ -1093,7 +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->clba * geo->csecs; tqueue->limits.discard_alignment = 0; blk_queue_max_discard_sectors(tqueue, UINT_MAX >> 9); blk_queue_flag_set(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 @@ next_read_rq: 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 @@ next_pad_rq: 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 @@ next_rq: 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 @@ next_rq: 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 c2cf6c939752..2474ef4366fa 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_addrf_12 *ppaf; + struct nvm_addrf_12 *geo_ppaf; ssize_t sz = 0; - sz = snprintf(page, PAGE_SIZE - sz, + ppaf = (struct nvm_addrf_12 *)&pblk->ppaf; + geo_ppaf = (struct nvm_addrf_12 *)&geo->addrf; + + sz = snprintf(page, PAGE_SIZE, "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); + pblk->ppaf_bitsize, + ppaf->blk_offset, ppaf->blk_len, + ppaf->pg_offset, ppaf->pg_len, + ppaf->lun_offset, ppaf->lun_len, + ppaf->ch_offset, ppaf->ch_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); + 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); 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..898c4e49f77d 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_addrf 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 +947,16 @@ 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_addrf_12 *ppaf = (struct nvm_addrf_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 +964,14 @@ 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_addrf_12 *ppaf = (struct nvm_addrf_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 +988,14 @@ 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_addrf_12 *ppaf = (struct nvm_addrf_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 +1011,14 @@ 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_addrf_12 *ppaf = (struct nvm_addrf_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 +1212,10 @@ 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..29c8f44eb25b 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 +254,160 @@ 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_addrf_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; - - nvm_id->num_ch = src->num_ch; - nvm_id->num_lun = src->num_lun; - - 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); - - pg_per_blk = le16_to_cpu(src->num_pg); - sec_per_pg = le16_to_cpu(src->fpg_sz) / nvm_id->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; + if (src->mtype != 0) { + pr_err("nvm: memory type not supported\n"); + return -EINVAL; } - 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); + 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; + + geo->nr_chks = le16_to_cpu(src->num_chk); + + 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) / geo->csecs; + sec_per_pl = sec_per_pg * src->num_pln; + 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 */ - 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->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; + } + + 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_addrf_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_addrf *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)); + dst->ch_len = src->grp_len; + dst->lun_len = src->pu_len; + dst->chk_len = src->chk_len; + dst->sec_len = src->lba_len; - return init_grp(nvm_id, id); + 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; - 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_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->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->nr_chks = le32_to_cpu(id->num_chk); + geo->clba = le32_to_cpu(id->clba); - 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->all_chunks = geo->all_luns * geo->nr_chks; + geo->total_secs = geo->clba * geo->all_chunks; - /* calculated values */ - nvm_id->ws_per_chk = nvm_id->clba / nvm_id->ws_min; + 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); - /* 1.2 compatibility */ - nvm_id->ws_seq = NVM_IO_SNGL_ACCESS; + 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); + + 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 +434,18 @@ 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 +460,7 @@ 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 +501,7 @@ 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 +869,10 @@ 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 +905,22 @@ 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 +929,78 @@ static ssize_t nvm_dev_attr_show(struct device *dev, } } +static ssize_t nvm_dev_attr_show_ppaf(struct nvm_addrf_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); } 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 +1009,40 @@ 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 +1161,13 @@ 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 +1181,10 @@ 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..6e650563b379 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_addrf_12 { u8 ch_len; - u8 lun_offset; u8 lun_len; - u8 pln_offset; - u8 pln_len; - u8 blk_offset; u8 blk_len; - u8 pg_offset; u8 pg_len; - u8 sect_offset; + u8 pln_len; u8 sect_len; + + u8 ch_offset; + u8 lun_offset; + u8 blk_offset; + u8 pg_offset; + u8 pln_offset; + u8 sect_offset; + + u64 ch_mask; + u64 lun_mask; + u64 blk_mask; + u64 pg_mask; + u64 pln_mask; + u64 sec_mask; }; -struct nvm_id { - u8 ver_id; - u8 vmnt; - u32 cap; - u32 dom; +struct nvm_addrf { + u8 ch_len; + u8 lun_len; + u8 chk_len; + u8 sec_len; + u8 rsv_len[2]; - struct nvm_addr_format ppaf; + u8 ch_offset; + u8 lun_offset; + u8 chk_offset; + u8 sec_offset; + u8 rsv_off[2]; - 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; - - u8 num_pln; - u16 num_pg; - u16 fpg_sz; -} __packed; + 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_addrf 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 +363,15 @@ 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_addrf_12 *ppaf = (struct nvm_addrf_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 +380,17 @@ 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_addrf_12 *ppaf = (struct nvm_addrf_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; }