8074 need to add FMA event for SSD wearout

@@ -425,10 +425,18 @@
 
                 if (nvlist_lookup_boolean_value(fault, FM_SUSPECT_RETIRE,
                     &retire) == 0 && retire == 0)
                         continue;
 
+                if (fmd_nvl_class_match(hdl, fault,
+                    "fault.io.disk.ssm-wearout") &&
+                    fmd_prop_get_int32(hdl, "ssm_wearout_skip_retire") ==
+                    FMD_B_TRUE) {
+                        fmd_hdl_debug(hdl, "zfs-retire: ignoring SSM fault");
+                        continue;
+                }
+
                 /*
                  * While we subscribe to fault.fs.zfs.*, we only take action
                  * for faults targeting a specific vdev (open failure or SERD
                  * failure).  We also subscribe to fault.io.* events, so that
                  * faulty disks will be faulted in the ZFS configuration.

@@ -559,10 +567,11 @@
         NULL,                   /* fmdo_gc */
 };
 
 static const fmd_prop_t fmd_props[] = {
         { "spare_on_remove", FMD_TYPE_BOOL, "true" },
+        { "ssm_wearout_skip_retire", FMD_TYPE_BOOL, "true"},
         { NULL, 0, NULL }
 };
 
 static const fmd_hdl_info_t fmd_info = {
         "ZFS Retire Agent", "1.0", &fmd_ops, fmd_props