On 12/5/22 08:20, Alvaro Karsz wrote:
+/* Get lifetime information struct for each request */
+struct virtio_blk_lifetime {
+ /*
+ * specifies the percentage of reserved blocks that are consumed.
+ * optional values following virtio spec:
+ * 0 - undefined
+ * 1 - normal, < 80% of reserved blocks are consumed
+ * 2 - warning, 80% of reserved blocks are consumed
+ * 3 - urgent, 90% of reserved blocks are consumed
+ */
+ __le16 pre_eol_info;
+ /*
+ * this field refers to wear of SLC cells and is provided in increments of 10used,
+ * and so on, thru to 11 meaning estimated lifetime exceeded. All values above 11
+ * are reserved
+ */
+ __le16 device_lifetime_est_typ_a;
+ /*
+ * this field refers to wear of MLC cells and is provided with the same semantics as
+ * device_lifetime_est_typ_a
+ */
+ __le16 device_lifetime_est_typ_b;
+};
Why does the above data structure only refer to SLC and MLC but not to
TLC or QLC?
How will this data structure be extended without having to introduce a
new ioctl?
Thanks,
Bart.
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