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lightnvm: make 1.2 data structures explicit

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Make the 1.2 data structures explicit, so it will be easy to identify
the 2.0 data structures. Also fix the order of which the nvme_nvm_*
are declared, such that they follow the nvme_nvm_command order.

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 00:05:00 +02:00 committed by Jens Axboe
parent e411b33117
commit a04e0cf93a
1 changed files with 41 additions and 41 deletions
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82
drivers/nvme/host/lightnvm.c
View file

@ -51,6 +51,21 @@ struct nvme_nvm_ph_rw {
__le64 resv;
};
struct nvme_nvm_erase_blk {
__u8 opcode;
__u8 flags;
__u16 command_id;
__le32 nsid;
__u64 rsvd[2];
__le64 prp1;
__le64 prp2;
__le64 spba;
__le16 length;
__le16 control;
__le32 dsmgmt;
__le64 resv;
};
struct nvme_nvm_identity {
__u8 opcode;
__u8 flags;
@ -89,33 +104,18 @@ struct nvme_nvm_setbbtbl {
__u32 rsvd4[3];
};
struct nvme_nvm_erase_blk {
__u8 opcode;
__u8 flags;
__u16 command_id;
__le32 nsid;
__u64 rsvd[2];
__le64 prp1;
__le64 prp2;
__le64 spba;
__le16 length;
__le16 control;
__le32 dsmgmt;
__le64 resv;
};
struct nvme_nvm_command {
union {
struct nvme_common_command common;
struct nvme_nvm_identity identity;
struct nvme_nvm_ph_rw ph_rw;
struct nvme_nvm_erase_blk erase;
struct nvme_nvm_identity identity;
struct nvme_nvm_getbbtbl get_bb;
struct nvme_nvm_setbbtbl set_bb;
struct nvme_nvm_erase_blk erase;
};
};
struct nvme_nvm_id_group {
struct nvme_nvm_id12_grp {
__u8 mtype;
__u8 fmtype;
__le16 res16;
@ -141,7 +141,7 @@ struct nvme_nvm_id_group {
__u8 reserved[906];
} __packed;
struct nvme_nvm_addr_format {
struct nvme_nvm_id12_addrf {
__u8 ch_offset;
__u8 ch_len;
__u8 lun_offset;
@ -157,16 +157,16 @@ struct nvme_nvm_addr_format {
__u8 res[4];
} __packed;
struct nvme_nvm_id {
struct nvme_nvm_id12 {
__u8 ver_id;
__u8 vmnt;
__u8 cgrps;
__u8 res;
__le32 cap;
__le32 dom;
struct nvme_nvm_addr_format ppaf;
struct nvme_nvm_id12_addrf ppaf;
__u8 resv[228];
struct nvme_nvm_id_group group;
struct nvme_nvm_id12_grp grp;
__u8 resv2[2880];
} __packed;
@ -191,25 +191,25 @@ static inline void _nvme_nvm_check_size(void)
{
BUILD_BUG_ON(sizeof(struct nvme_nvm_identity) != 64);
BUILD_BUG_ON(sizeof(struct nvme_nvm_ph_rw) != 64);
BUILD_BUG_ON(sizeof(struct nvme_nvm_erase_blk) != 64);
BUILD_BUG_ON(sizeof(struct nvme_nvm_getbbtbl) != 64);
BUILD_BUG_ON(sizeof(struct nvme_nvm_setbbtbl) != 64);
BUILD_BUG_ON(sizeof(struct nvme_nvm_erase_blk) != 64);
BUILD_BUG_ON(sizeof(struct nvme_nvm_id_group) != 960);
BUILD_BUG_ON(sizeof(struct nvme_nvm_addr_format) != 16);
BUILD_BUG_ON(sizeof(struct nvme_nvm_id) != NVME_IDENTIFY_DATA_SIZE);
BUILD_BUG_ON(sizeof(struct nvme_nvm_id12_grp) != 960);
BUILD_BUG_ON(sizeof(struct nvme_nvm_id12_addrf) != 16);
BUILD_BUG_ON(sizeof(struct nvme_nvm_id12) != NVME_IDENTIFY_DATA_SIZE);
BUILD_BUG_ON(sizeof(struct nvme_nvm_bb_tbl) != 64);
}
static int init_grps(struct nvm_id *nvm_id, struct nvme_nvm_id *nvme_nvm_id)
static int init_grp(struct nvm_id *nvm_id, struct nvme_nvm_id12 *id12)
{
struct nvme_nvm_id_group *src;
struct nvme_nvm_id12_grp *src;
struct nvm_id_group *grp;
int sec_per_pg, sec_per_pl, pg_per_blk;
if (nvme_nvm_id->cgrps != 1)
if (id12->cgrps != 1)
return -EINVAL;
src = &nvme_nvm_id->group;
src = &id12->grp;
grp = &nvm_id->grp;
grp->mtype = src->mtype;
@ -261,34 +261,34 @@ static int init_grps(struct nvm_id *nvm_id, struct nvme_nvm_id *nvme_nvm_id)
static int nvme_nvm_identity(struct nvm_dev *nvmdev, struct nvm_id *nvm_id)
{
struct nvme_ns *ns = nvmdev->q->queuedata;
struct nvme_nvm_id *nvme_nvm_id;
struct nvme_nvm_id12 *id;
struct nvme_nvm_command c = {};
int ret;
c.identity.opcode = nvme_nvm_admin_identity;
c.identity.nsid = cpu_to_le32(ns->head->ns_id);
nvme_nvm_id = kmalloc(sizeof(struct nvme_nvm_id), GFP_KERNEL);
if (!nvme_nvm_id)
id = kmalloc(sizeof(struct nvme_nvm_id12), GFP_KERNEL);
if (!id)
return -ENOMEM;
ret = nvme_submit_sync_cmd(ns->ctrl->admin_q, (struct nvme_command *)&c,
nvme_nvm_id, sizeof(struct nvme_nvm_id));
id, sizeof(struct nvme_nvm_id12));
if (ret) {
ret = -EIO;
goto out;
}
nvm_id->ver_id = nvme_nvm_id->ver_id;
nvm_id->vmnt = nvme_nvm_id->vmnt;
nvm_id->cap = le32_to_cpu(nvme_nvm_id->cap);
nvm_id->dom = le32_to_cpu(nvme_nvm_id->dom);
memcpy(&nvm_id->ppaf, &nvme_nvm_id->ppaf,
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));
ret = init_grps(nvm_id, nvme_nvm_id);
ret = init_grp(nvm_id, id);
out:
kfree(nvme_nvm_id);
kfree(id);
return ret;
}