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lightnvm: flatten nvm_id_group into nvm_id

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There are no groups in the 2.0 specification, make sure that the
nvm_id structure is flattened before 2.0 data structures are added.

Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Matias Bjørling 2018-03-30 00:05:01 +02:00 committed by Jens Axboe
parent a04e0cf93a
commit c6ac3f35d4
3 changed files with 86 additions and 92 deletions
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25
drivers/lightnvm/core.c
View file

@ -851,33 +851,32 @@ EXPORT_SYMBOL(nvm_get_tgt_bb_tbl);
static int nvm_core_init(struct nvm_dev *dev)
{
struct nvm_id *id = &dev->identity;
struct nvm_id_group *grp = &id->grp;
struct nvm_geo *geo = &dev->geo;
int ret;
memcpy(&geo->ppaf, &id->ppaf, sizeof(struct nvm_addr_format));
if (grp->mtype != 0) {
if (id->mtype != 0) {
pr_err("nvm: memory type not supported\n");
return -EINVAL;
}
/* Whole device values */
geo->nr_chnls = grp->num_ch;
geo->nr_luns = grp->num_lun;
geo->nr_chnls = id->num_ch;
geo->nr_luns = id->num_lun;
/* Generic device geometry values */
geo->ws_min = grp->ws_min;
geo->ws_opt = grp->ws_opt;
geo->ws_seq = grp->ws_seq;
geo->ws_per_chk = grp->ws_per_chk;
geo->nr_chks = grp->num_chk;
geo->sec_size = grp->csecs;
geo->oob_size = grp->sos;
geo->mccap = grp->mccap;
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->sec_size = id->csecs;
geo->oob_size = id->sos;
geo->mccap = id->mccap;
geo->max_rq_size = dev->ops->max_phys_sect * geo->sec_size;
geo->sec_per_chk = grp->clba;
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;

100
drivers/nvme/host/lightnvm.c
View file

@ -203,57 +203,55 @@ static inline void _nvme_nvm_check_size(void)
static int init_grp(struct nvm_id *nvm_id, struct nvme_nvm_id12 *id12)
{
struct nvme_nvm_id12_grp *src;
struct nvm_id_group *grp;
int sec_per_pg, sec_per_pl, pg_per_blk;
if (id12->cgrps != 1)
return -EINVAL;
src = &id12->grp;
grp = &nvm_id->grp;
grp->mtype = src->mtype;
grp->fmtype = src->fmtype;
nvm_id->mtype = src->mtype;
nvm_id->fmtype = src->fmtype;
grp->num_ch = src->num_ch;
grp->num_lun = src->num_lun;
nvm_id->num_ch = src->num_ch;
nvm_id->num_lun = src->num_lun;
grp->num_chk = le16_to_cpu(src->num_chk);
grp->csecs = le16_to_cpu(src->csecs);
grp->sos = le16_to_cpu(src->sos);
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) / grp->csecs;
sec_per_pg = le16_to_cpu(src->fpg_sz) / nvm_id->csecs;
sec_per_pl = sec_per_pg * src->num_pln;
grp->clba = sec_per_pl * pg_per_blk;
grp->ws_per_chk = pg_per_blk;
nvm_id->clba = sec_per_pl * pg_per_blk;
nvm_id->ws_per_chk = pg_per_blk;
grp->mpos = le32_to_cpu(src->mpos);
grp->cpar = le16_to_cpu(src->cpar);
grp->mccap = le32_to_cpu(src->mccap);
nvm_id->mpos = le32_to_cpu(src->mpos);
nvm_id->cpar = le16_to_cpu(src->cpar);
nvm_id->mccap = le32_to_cpu(src->mccap);
grp->ws_opt = grp->ws_min = sec_per_pg;
grp->ws_seq = NVM_IO_SNGL_ACCESS;
nvm_id->ws_opt = nvm_id->ws_min = sec_per_pg;
nvm_id->ws_seq = NVM_IO_SNGL_ACCESS;
if (grp->mpos & 0x020202) {
grp->ws_seq = NVM_IO_DUAL_ACCESS;
grp->ws_opt <<= 1;
} else if (grp->mpos & 0x040404) {
grp->ws_seq = NVM_IO_QUAD_ACCESS;
grp->ws_opt <<= 2;
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;
}
grp->trdt = le32_to_cpu(src->trdt);
grp->trdm = le32_to_cpu(src->trdm);
grp->tprt = le32_to_cpu(src->tprt);
grp->tprm = le32_to_cpu(src->tprm);
grp->tbet = le32_to_cpu(src->tbet);
grp->tbem = le32_to_cpu(src->tbem);
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 */
grp->num_pln = src->num_pln;
grp->num_pg = le16_to_cpu(src->num_pg);
grp->fpg_sz = le16_to_cpu(src->fpg_sz);
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);
return 0;
}
@ -740,14 +738,12 @@ 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_id_group *grp;
struct attribute *attr;
if (!ndev)
return 0;
id = &ndev->identity;
grp = &id->grp;
attr = &dattr->attr;
if (strcmp(attr->name, "version") == 0) {
@ -771,41 +767,41 @@ static ssize_t nvm_dev_attr_show(struct device *dev,
id->ppaf.pg_offset, id->ppaf.pg_len,
id->ppaf.sect_offset, id->ppaf.sect_len);
} else if (strcmp(attr->name, "media_type") == 0) { /* u8 */
return scnprintf(page, PAGE_SIZE, "%u\n", grp->mtype);
return scnprintf(page, PAGE_SIZE, "%u\n", id->mtype);
} else if (strcmp(attr->name, "flash_media_type") == 0) {
return scnprintf(page, PAGE_SIZE, "%u\n", grp->fmtype);
return scnprintf(page, PAGE_SIZE, "%u\n", id->fmtype);
} else if (strcmp(attr->name, "num_channels") == 0) {
return scnprintf(page, PAGE_SIZE, "%u\n", grp->num_ch);
return scnprintf(page, PAGE_SIZE, "%u\n", id->num_ch);
} else if (strcmp(attr->name, "num_luns") == 0) {
return scnprintf(page, PAGE_SIZE, "%u\n", grp->num_lun);
return scnprintf(page, PAGE_SIZE, "%u\n", id->num_lun);
} else if (strcmp(attr->name, "num_planes") == 0) {
return scnprintf(page, PAGE_SIZE, "%u\n", grp->num_pln);
return scnprintf(page, PAGE_SIZE, "%u\n", id->num_pln);
} else if (strcmp(attr->name, "num_blocks") == 0) { /* u16 */
return scnprintf(page, PAGE_SIZE, "%u\n", grp->num_chk);
return scnprintf(page, PAGE_SIZE, "%u\n", id->num_chk);
} else if (strcmp(attr->name, "num_pages") == 0) {
return scnprintf(page, PAGE_SIZE, "%u\n", grp->num_pg);
return scnprintf(page, PAGE_SIZE, "%u\n", id->num_pg);
} else if (strcmp(attr->name, "page_size") == 0) {
return scnprintf(page, PAGE_SIZE, "%u\n", grp->fpg_sz);
return scnprintf(page, PAGE_SIZE, "%u\n", id->fpg_sz);
} else if (strcmp(attr->name, "hw_sector_size") == 0) {
return scnprintf(page, PAGE_SIZE, "%u\n", grp->csecs);
return scnprintf(page, PAGE_SIZE, "%u\n", id->csecs);
} else if (strcmp(attr->name, "oob_sector_size") == 0) {/* u32 */
return scnprintf(page, PAGE_SIZE, "%u\n", grp->sos);
return scnprintf(page, PAGE_SIZE, "%u\n", id->sos);
} else if (strcmp(attr->name, "read_typ") == 0) {
return scnprintf(page, PAGE_SIZE, "%u\n", grp->trdt);
return scnprintf(page, PAGE_SIZE, "%u\n", id->trdt);
} else if (strcmp(attr->name, "read_max") == 0) {
return scnprintf(page, PAGE_SIZE, "%u\n", grp->trdm);
return scnprintf(page, PAGE_SIZE, "%u\n", id->trdm);
} else if (strcmp(attr->name, "prog_typ") == 0) {
return scnprintf(page, PAGE_SIZE, "%u\n", grp->tprt);
return scnprintf(page, PAGE_SIZE, "%u\n", id->tprt);
} else if (strcmp(attr->name, "prog_max") == 0) {
return scnprintf(page, PAGE_SIZE, "%u\n", grp->tprm);
return scnprintf(page, PAGE_SIZE, "%u\n", id->tprm);
} else if (strcmp(attr->name, "erase_typ") == 0) {
return scnprintf(page, PAGE_SIZE, "%u\n", grp->tbet);
return scnprintf(page, PAGE_SIZE, "%u\n", id->tbet);
} else if (strcmp(attr->name, "erase_max") == 0) {
return scnprintf(page, PAGE_SIZE, "%u\n", grp->tbem);
return scnprintf(page, PAGE_SIZE, "%u\n", id->tbem);
} else if (strcmp(attr->name, "multiplane_modes") == 0) {
return scnprintf(page, PAGE_SIZE, "0x%08x\n", grp->mpos);
return scnprintf(page, PAGE_SIZE, "0x%08x\n", id->mpos);
} else if (strcmp(attr->name, "media_capabilities") == 0) {
return scnprintf(page, PAGE_SIZE, "0x%08x\n", grp->mccap);
return scnprintf(page, PAGE_SIZE, "0x%08x\n", id->mccap);
} else if (strcmp(attr->name, "max_phys_secs") == 0) {
return scnprintf(page, PAGE_SIZE, "%u\n",
ndev->ops->max_phys_sect);

53
include/linux/lightnvm.h
View file

@ -154,9 +154,29 @@ struct nvm_id_lp_tbl {
struct nvm_id_lp_mlc mlc;
};
struct nvm_id_group {
u8 mtype;
u8 fmtype;
struct nvm_addr_format {
u8 ch_offset;
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 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;
@ -180,33 +200,12 @@ struct nvm_id_group {
u16 cpar;
/* 1.2 compatibility */
u8 mtype;
u8 fmtype;
u8 num_pln;
u16 num_pg;
u16 fpg_sz;
};
struct nvm_addr_format {
u8 ch_offset;
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 sect_len;
};
struct nvm_id {
u8 ver_id;
u8 vmnt;
u32 cap;
u32 dom;
struct nvm_addr_format ppaf;
struct nvm_id_group grp;
} __packed;
struct nvm_target {