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authorWarner Losh <imp@FreeBSD.org>2018-04-19 16:05:48 +0000
committerWarner Losh <imp@FreeBSD.org>2018-04-19 16:05:48 +0000
commite8bef32ce21f2d8211c37df875b441916fadd8d3 (patch)
tree1f728ddf4bd00ccc5e76b88e94d86d346d48ff22 /sys/dev/nvme
parent73c8686e91350bb6a16ed918886fade28735a1ed (diff)
Notes
Diffstat (limited to 'sys/dev/nvme')
-rw-r--r--sys/dev/nvme/nvme_ns.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/sys/dev/nvme/nvme_ns.c b/sys/dev/nvme/nvme_ns.c
index 0b15db6c031a..bb233c7abb52 100644
--- a/sys/dev/nvme/nvme_ns.c
+++ b/sys/dev/nvme/nvme_ns.c
@@ -506,10 +506,9 @@ nvme_ns_construct(struct nvme_namespace *ns, uint32_t id,
ns->stripesize = 0;
/*
- * Some Intel devices advertise an alignment that improves performance,
- * but is in it's vendor specific space in the cdata. Use it for these
- * drives, if present, to suggest a stripe size. Future versions of
- * Intel hardware will use fields standardized in NVMe 1.3 for this.
+ * Older Intel devices advertise in vendor specific space an alignment
+ * that improves performance. If present use for the stripe size. NVMe
+ * 1.3 standardized this as NOIOB, and newer Intel drives use that.
*/
switch (pci_get_devid(ctrlr->dev)) {
case 0x09538086: /* Intel DC PC3500 */