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Merge branch 'for-4.5/lightnvm' of git://git.kernel.dk/linux-block

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Pull lightnvm fixes and updates from Jens Axboe:
 "This should have been part of the drivers branch, but it arrived a bit
  late and wasn't based on the official core block driver branch.  So
  they got a small scolding, but got a pass since it's still new.  Hence
  it's in a separate branch.

  This is mostly pure fixes, contained to lightnvm/, and minor feature
  additions"

* 'for-4.5/lightnvm' of git://git.kernel.dk/linux-block: (26 commits)
  lightnvm: ensure that nvm_dev_ops can be used without CONFIG_NVM
  lightnvm: introduce factory reset
  lightnvm: use system block for mm initialization
  lightnvm: introduce ioctl to initialize device
  lightnvm: core on-disk initialization
  lightnvm: introduce mlc lower page table mappings
  lightnvm: add mccap support
  lightnvm: manage open and closed blocks separately
  lightnvm: fix missing grown bad block type
  lightnvm: reference rrpc lun in rrpc block
  lightnvm: introduce nvm_submit_ppa
  lightnvm: move rq->error to nvm_rq->error
  lightnvm: support multiple ppas in nvm_erase_ppa
  lightnvm: move the pages per block check out of the loop
  lightnvm: sectors first in ppa list
  lightnvm: fix locking and mempool in rrpc_lun_gc
  lightnvm: put block back to gc list on its reclaim fail
  lightnvm: check bi_error in gc
  lightnvm: return the get_bb_tbl return value
  lightnvm: refactor end_io functions for sync
  ...
This commit is contained in:
Linus Torvalds 2016-01-21 19:01:55 -08:00
commit 0a13daedf7
10 changed files with 1476 additions and 226 deletions
Download patch file Download diff file Expand all files Collapse all files

32
drivers/nvme/host/lightnvm.c
View file

@ -146,6 +146,16 @@ struct nvme_nvm_command {
};
};
struct nvme_nvm_lp_mlc {
__u16 num_pairs;
__u8 pairs[886];
};
struct nvme_nvm_lp_tbl {
__u8 id[8];
struct nvme_nvm_lp_mlc mlc;
};
struct nvme_nvm_id_group {
__u8 mtype;
__u8 fmtype;
@ -169,7 +179,8 @@ struct nvme_nvm_id_group {
__le32 mpos;
__le32 mccap;
__le16 cpar;
__u8 reserved[906];
__u8 reserved[10];
struct nvme_nvm_lp_tbl lptbl;
} __packed;
struct nvme_nvm_addr_format {
@ -266,6 +277,15 @@ static int init_grps(struct nvm_id *nvm_id, struct nvme_nvm_id *nvme_nvm_id)
dst->mccap = le32_to_cpu(src->mccap);
dst->cpar = le16_to_cpu(src->cpar);
if (dst->fmtype == NVM_ID_FMTYPE_MLC) {
memcpy(dst->lptbl.id, src->lptbl.id, 8);
dst->lptbl.mlc.num_pairs =
le16_to_cpu(src->lptbl.mlc.num_pairs);
/* 4 bits per pair */
memcpy(dst->lptbl.mlc.pairs, src->lptbl.mlc.pairs,
dst->lptbl.mlc.num_pairs >> 1);
}
}
return 0;
@ -405,11 +425,6 @@ static int nvme_nvm_get_bb_tbl(struct nvm_dev *nvmdev, struct ppa_addr ppa,
ppa = dev_to_generic_addr(nvmdev, ppa);
ret = update_bbtbl(ppa, nr_blocks, bb_tbl->blk, priv);
if (ret) {
ret = -EINTR;
goto out;
}
out:
kfree(bb_tbl);
return ret;
@ -453,11 +468,8 @@ static inline void nvme_nvm_rqtocmd(struct request *rq, struct nvm_rq *rqd,
static void nvme_nvm_end_io(struct request *rq, int error)
{
struct nvm_rq *rqd = rq->end_io_data;
struct nvm_dev *dev = rqd->dev;
if (dev->mt && dev->mt->end_io(rqd, error))
pr_err("nvme: err status: %x result: %lx\n",
rq->errors, (unsigned long)rq->special);
nvm_end_io(rqd, error);
kfree(rq->cmd);
blk_mq_free_request(rq);