[ndctl,8/8] libndctl,papr_scm: Add support for reporting bad shutdown

Commit Message

Vaibhav Jain Feb. 20, 2020, 10:49 a.m. UTC

Provide support for dimm-op 'smart_get_shutdown_state' implemented as
papr_smart_get_shutdown_state() to report a bad shutdown that couldn't
flush contents of nvdimm to flash memory properly.

Signed-off-by: Vaibhav Jain <[e-mail]>
---
 ndctl/lib/papr_scm.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

Patch

diff --git a/ndctl/lib/papr_scm.c b/ndctl/lib/papr_scm.c
index a01649d3a9fe..8a6fec992aff 100644
--- a/ndctl/lib/papr_scm.c
+++ b/ndctl/lib/papr_scm.c
@@ -231,13 +231,22 @@  static unsigned int papr_smart_get_health(struct ndctl_cmd *cmd)
 		return 1 << (p->health.dimm_health - 1);
 }
 
+static unsigned int papr_smart_get_shutdown_state(struct ndctl_cmd *cmd)
+{
+	struct dimm_priv *p = cmd->dimm->dimm_user_data;
+
+	/* Update dimm state and return f_flush */
+	return update_dimm_stats(cmd->dimm, cmd) ?
+		0 : p->health.dimm_bad_shutdown;
+}
+
 static unsigned int papr_smart_get_flags(struct ndctl_cmd *cmd)
 {
 	/* In case of error return empty flags * */
 	if (update_dimm_stats(cmd->dimm, cmd))
 		return 0;
 
-	return ND_SMART_HEALTH_VALID;
+	return ND_SMART_HEALTH_VALID | ND_SMART_SHUTDOWN_VALID;
 }
 
 static int papr_dimm_init(struct ndctl_dimm *dimm)
@@ -279,4 +288,5 @@  struct ndctl_dimm_ops * const papr_scm_dimm_ops = &(struct ndctl_dimm_ops) {
 	.smart_get_flags = papr_smart_get_flags,
 	.new_smart = papr_new_smart_health,
 	.smart_get_health = papr_smart_get_health,
+	.smart_get_shutdown_state = papr_smart_get_shutdown_state,
 };