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| author | Dan Williams <dan.j.williams@intel.com> | 2021-08-24 19:05:30 +0300 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2021-08-24 22:08:28 +0300 |
| commit | b4366a827f6cf6e58c93e076e335d9ee9ee0480f (patch) | |
| tree | dd17eac31909d307cbaf22dbc639fd76d295be17 /drivers/nvdimm/label.c | |
| parent | ceeb0da0a0322bcba4c50ab3cf97fe9a7aa8a2e4 (diff) | |
| download | linux-b4366a827f6cf6e58c93e076e335d9ee9ee0480f.tar.xz | |
libnvdimm/labels: Introduce getters for namespace label fields
In preparation for LIBNVDIMM to manage labels on CXL devices deploy
helpers that abstract the label type from the implementation. The CXL
label format is mostly similar to the EFI label format with concepts /
fields added, like dynamic region creation and label type guids, and
other concepts removed like BLK-mode and interleave-set-cookie ids.
In addition to nsl_get_* helpers there is the nsl_ref_name() helper that
returns a pointer to a label field rather than copying the data.
Where changes touch the old whitespace style, update to clang-format
expectations.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/162982113002.1124374.15922077050771304490.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/label.c')
| -rw-r--r-- | drivers/nvdimm/label.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/nvdimm/label.c b/drivers/nvdimm/label.c index 9251441fd8a3..b6d845cfb70e 100644 --- a/drivers/nvdimm/label.c +++ b/drivers/nvdimm/label.c @@ -350,14 +350,14 @@ static bool slot_valid(struct nvdimm_drvdata *ndd, struct nd_namespace_label *nd_label, u32 slot) { /* check that we are written where we expect to be written */ - if (slot != __le32_to_cpu(nd_label->slot)) + if (slot != nsl_get_slot(ndd, nd_label)) return false; /* check checksum */ if (namespace_label_has(ndd, checksum)) { u64 sum, sum_save; - sum_save = __le64_to_cpu(nd_label->checksum); + sum_save = nsl_get_checksum(ndd, nd_label); nd_label->checksum = __cpu_to_le64(0); sum = nd_fletcher64(nd_label, sizeof_namespace_label(ndd), 1); nd_label->checksum = __cpu_to_le64(sum_save); @@ -395,13 +395,13 @@ int nd_label_reserve_dpa(struct nvdimm_drvdata *ndd) continue; memcpy(label_uuid, nd_label->uuid, NSLABEL_UUID_LEN); - flags = __le32_to_cpu(nd_label->flags); + flags = nsl_get_flags(ndd, nd_label); if (test_bit(NDD_NOBLK, &nvdimm->flags)) flags &= ~NSLABEL_FLAG_LOCAL; nd_label_gen_id(&label_id, label_uuid, flags); res = nvdimm_allocate_dpa(ndd, &label_id, - __le64_to_cpu(nd_label->dpa), - __le64_to_cpu(nd_label->rawsize)); + nsl_get_dpa(ndd, nd_label), + nsl_get_rawsize(ndd, nd_label)); nd_dbg_dpa(nd_region, ndd, res, "reserve\n"); if (!res) return -EBUSY; @@ -548,9 +548,9 @@ int nd_label_active_count(struct nvdimm_drvdata *ndd) nd_label = to_label(ndd, slot); if (!slot_valid(ndd, nd_label, slot)) { - u32 label_slot = __le32_to_cpu(nd_label->slot); - u64 size = __le64_to_cpu(nd_label->rawsize); - u64 dpa = __le64_to_cpu(nd_label->dpa); + u32 label_slot = nsl_get_slot(ndd, nd_label); + u64 size = nsl_get_rawsize(ndd, nd_label); + u64 dpa = nsl_get_dpa(ndd, nd_label); dev_dbg(ndd->dev, "slot%d invalid slot: %d dpa: %llx size: %llx\n", @@ -879,9 +879,9 @@ static struct resource *to_resource(struct nvdimm_drvdata *ndd, struct resource *res; for_each_dpa_resource(ndd, res) { - if (res->start != __le64_to_cpu(nd_label->dpa)) + if (res->start != nsl_get_dpa(ndd, nd_label)) continue; - if (resource_size(res) != __le64_to_cpu(nd_label->rawsize)) + if (resource_size(res) != nsl_get_rawsize(ndd, nd_label)) continue; return res; } |