From 35b33c06617e30438e331bcad719c93f65ab7a3c Mon Sep 17 00:00:00 2001
From: Agrim Bharat <agrimbharat@google.com>
Date: Thu, 25 Sep 2025 17:29:40 +0000
Subject: [PATCH] Add support for command & feature lockdown log page

---
 src/nvme/mi.h    | 30 ++++++++++++++++++++++++++++++
 src/nvme/types.h | 16 ++++++++++++++++
 2 files changed, 46 insertions(+)

diff --git a/src/nvme/mi.h b/src/nvme/mi.h
index 56591595..d4f02fe2 100644
--- a/src/nvme/mi.h
+++ b/src/nvme/mi.h
@@ -2274,6 +2274,36 @@ static inline int nvme_mi_admin_get_log_persistent_event(nvme_mi_ctrl_t ctrl,
 	return nvme_mi_admin_get_log(ctrl, &args);
 }
 
+/**
+ * nvme_mi_admin_get_log_lockdown() - Retrieve lockdown Log
+ * @ctrl:		Controller to query
+ * @cnscp:		Contents and Scope of Command and Feature Identifier Lists
+ * @lockdown_log:	Buffer to store the lockdown log
+ *
+ * Return: The nvme command status if a response was received (see
+ * &enum nvme_status_field) or -1 with errno set otherwise.
+ */
+static inline int nvme_mi_admin_get_log_lockdown(nvme_mi_ctrl_t ctrl,
+			__u8 cnscp, struct nvme_lockdown_log *lockdown_log)
+{
+	struct nvme_get_log_args args = {
+		.lpo = 0,
+		.result = NULL,
+		.log = lockdown_log,
+		.args_size = sizeof(args),
+		.lid = NVME_LOG_LID_CMD_AND_FEAT_LOCKDOWN,
+		.len = sizeof(*lockdown_log),
+		.nsid = NVME_NSID_ALL,
+		.csi = NVME_CSI_NVM,
+		.lsi = NVME_LOG_LSI_NONE,
+		.lsp = cnscp,
+		.uuidx = NVME_UUID_NONE,
+		.rae = false,
+		.ot = false,
+	};
+	return nvme_mi_admin_get_log(ctrl, &args);
+}
+
 /**
  * nvme_mi_admin_security_send() - Perform a Security Send command on a
  * controller.
diff --git a/src/nvme/types.h b/src/nvme/types.h
index 94066fc2..922dc2c0 100644
--- a/src/nvme/types.h
+++ b/src/nvme/types.h
@@ -3816,6 +3816,20 @@ struct nvme_supported_cap_config_list_log {
 	struct nvme_capacity_config_desc cap_config_desc[];
 };
 
+/**
+ * struct nvme_lockdown_log - Command and Feature Lockdown Log
+ * @cfila:	Contents of the Command and Feature Identifier List field in the log page.
+ * @rsvd1:	Reserved
+ * @lngth:	Length of Command and Feature Identifier List field
+ * @cfil:	Command and Feature Identifier List
+ */
+struct nvme_lockdown_log {
+	__u8	cfila;
+	__u8	rsvd1[2];
+	__u8	lngth;
+	__u8	cfil[508];
+};
+
 /**
  * struct nvme_resv_notification_log - Reservation Notification Log
  * @lpc:	Log Page Count
@@ -6375,6 +6389,7 @@ enum nvme_identify_cns {
  * @NVME_LOG_LID_SUPPORTED_CAP_CONFIG_LIST:	Supported Capacity Configuration Lis
  * @NVME_LOG_LID_FID_SUPPORTED_EFFECTS:		Feature Identifiers Supported and Effects
  * @NVME_LOG_LID_MI_CMD_SUPPORTED_EFFECTS:	NVMe-MI Commands Supported and Effects
+ * @NVME_LOG_LID_CMD_AND_FEAT_LOCKDOWN:		Command and Feature Lockdown
  * @NVME_LOG_LID_BOOT_PARTITION:		Boot Partition
  * @NVME_LOG_LID_DISCOVER:			Discovery
  * @NVME_LOG_LID_RESERVATION:			Reservation Notification
@@ -6402,6 +6417,7 @@ enum nvme_cmd_get_log_lid {
 	NVME_LOG_LID_SUPPORTED_CAP_CONFIG_LIST			= 0x11,
 	NVME_LOG_LID_FID_SUPPORTED_EFFECTS			= 0x12,
 	NVME_LOG_LID_MI_CMD_SUPPORTED_EFFECTS			= 0x13,
+	NVME_LOG_LID_CMD_AND_FEAT_LOCKDOWN			= 0x14,
 	NVME_LOG_LID_BOOT_PARTITION				= 0x15,
 	NVME_LOG_LID_DISCOVER					= 0x70,
 	NVME_LOG_LID_RESERVATION				= 0x80,
-- 
2.51.0.618.g983fd99d29-goog