diff options
author | Javier González <javier@cnexlabs.com> | 2018-03-30 00:05:10 +0200 |
---|---|---|
committer | Jens Axboe <axboe@kernel.dk> | 2018-03-29 17:29:09 -0600 |
commit | e46f4e4822bdecf9bcbc2e71b2a3ae7f37464a2d (patch) | |
tree | f69895ed8945edc7be7e80186ad7b4568d367db5 /drivers/nvme | |
parent | 43d47127219de1dd674b917c1835baa14c4c1768 (diff) |
lightnvm: simplify geometry structure
Currently, the device geometry is stored redundantly in the nvm_id and
nvm_geo structures at a device level. Moreover, when instantiating
targets on a specific number of LUNs, these structures are replicated
and manually modified to fit the instance channel and LUN partitioning.
Instead, create a generic geometry around 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@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/nvme')
-rw-r--r-- | drivers/nvme/host/lightnvm.c | 337 |
1 files changed, 199 insertions, 138 deletions
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 = &id->grp; + + if (src->mtype != 0) { + pr_err("nvm: memory type not supported\n"); return -EINVAL; + } - src = &id12->grp; + geo->ver_id = id->ver_id; - nvm_id->mtype = src->mtype; - nvm_id->fmtype = src->fmtype; + 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 */ - 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->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)); - - 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; - 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); |