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lightnvm: merge gennvm with core

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For the first iteration of Open-Channel SSDs, it was anticipated that
there could be various media managers on top of an open-channel SSD,
such to allow vendors to plug in their own host-side FTLs, without the
media manager in between.

Now that an Open-Channel SSD is exposed as a traditional block device,
there is no longer a need for this. Therefore lets merge the gennvm code
with core and simplify the stack.

Signed-off-by: Matias Bjørling <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Matias Bjørling 2017-01-31 13:17:09 +01:00 • committed by Jens Axboe
commit ade69e2432
8 changed files with 606 additions and 1748 deletions
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7
drivers/nvme/host/lightnvm.c
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@ -372,7 +372,7 @@ static int nvme_nvm_get_l2p_tbl(struct nvm_dev *nvmdev, u64 slba, u32 nlb,
}
/* Transform physical address to target address space */
nvmdev->mt->part_to_tgt(nvmdev, entries, cmd_nlb);
nvm_part_to_tgt(nvmdev, entries, cmd_nlb);
if (update_l2p(cmd_slba, cmd_nlb, entries, priv)) {
ret = -EINTR;
@ -633,10 +633,9 @@ static ssize_t nvm_dev_attr_show(struct device *dev,
return scnprintf(page, PAGE_SIZE, "%u\n", id->cap);
} else if (strcmp(attr->name, "device_mode") == 0) {
return scnprintf(page, PAGE_SIZE, "%u\n", id->dom);
/* kept for compatibility */
} else if (strcmp(attr->name, "media_manager") == 0) {
if (!ndev->mt)
return scnprintf(page, PAGE_SIZE, "%s\n", "none");
return scnprintf(page, PAGE_SIZE, "%s\n", ndev->mt->name);
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",