[Skiboot] [PATCH V10 13/21] core/pldm: Send a system chassis Off-Soft Graceful request

[Christophe Lombard]

Set the state information of the PLDM effecter identified by:
the entity type (PLDM_ENTITY_SYSTEM_CHASSIS) and the state set
PLDM_STATE_SET_SYSTEM_POWER_STATE with the effecter state:
PLDM_STATE_SET_SYS_POWER_STATE_OFF_SOFT_GRACEFUL to request a platform off.

Reviewed-by: Abhishek Singh Tomar <abhishek at linux.ibm.com>
Signed-off-by: Christophe Lombard <clombard at linux.ibm.com>
---
 core/pldm/pldm-platform-requests.c | 32 ++++++++++++++++++++++++++++++
 include/pldm.h                     |  5 +++++
 2 files changed, 37 insertions(+)

diff --git a/core/pldm/pldm-platform-requests.c b/core/pldm/pldm-platform-requests.c
index f45620913..c506bd4fc 100644
--- a/core/pldm/pldm-platform-requests.c
+++ b/core/pldm/pldm-platform-requests.c
@@ -171,6 +171,38 @@ static int set_state_effecter_states_req(uint16_t effecter_id,
 	return OPAL_SUCCESS;
 }
 
+/*
+ * entity_type:  System chassis (main enclosure)
+ * state_set:    System Power State (260)
+ * states:       Off-Soft Graceful(9)
+ */
+int pldm_platform_power_off(void)
+{
+	set_effecter_state_field field;
+	uint16_t effecter_id;
+	int rc;
+
+	if (!pdr_ready)
+		return OPAL_HARDWARE;
+
+	rc = find_effecter_id_by_state_set_Id(
+				PLDM_ENTITY_SYSTEM_CHASSIS,
+				PLDM_STATE_SET_SYSTEM_POWER_STATE,
+				&effecter_id, BMC_TID);
+	if (rc) {
+		prlog(PR_ERR, "%s - effecter id not found\n", __func__);
+		return rc;
+	}
+
+	field.set_request = PLDM_REQUEST_SET;
+	field.effecter_state = PLDM_STATE_SET_SYS_POWER_STATE_OFF_SOFT_GRACEFUL;
+
+	prlog(PR_INFO, "sending system chassis Off-Soft Graceful request (effecter_id: %d)\n",
+			effecter_id);
+
+	return set_state_effecter_states_req(effecter_id, &field, true);
+}
+
 /*
  * entity_type:  System Firmware
  * state_set:    Software Termination Status(129)
diff --git a/include/pldm.h b/include/pldm.h
index 6d86cd104..55a4e149d 100644
--- a/include/pldm.h
+++ b/include/pldm.h
@@ -21,6 +21,11 @@ int pldm_mctp_init(void);
  */
 void pldm_mctp_exit(void);
 
+/**
+ * Send a system chassis Off-Soft Graceful request
+ */
+int pldm_platform_power_off(void);
+
 /**
  * Send a system firmware Graceful Restart request
  */
-- 
2.41.0