Commit c6ac3f35 authored by Matias Bjørling's avatar Matias Bjørling Committed by Jens Axboe
Browse files

lightnvm: flatten nvm_id_group into nvm_id 



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: default avatarMatias Bjørling <mb@lightnvm.io>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent a04e0cf9

drivers/lightnvm/core.c

+12 −13
Original line number Diff line number Diff line
@@ -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;

drivers/nvme/host/lightnvm.c

+51 −55
Original line number Diff line number Diff line
@@ -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);

include/linux/lightnvm.h

+26 −27
Original line number Diff line number Diff line
@@ -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 {

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