ioctl: add temperature threshold TMPSEL and THSEL parameters to get

Those required to get the feature temperature values.

Signed-off-by: Tokunori Ikegami <ikegami.t@gmail.com>

Author: ikegami-t

src/libnvme.map

@@ -1,6 +1,7 @@
 # SPDX-License-Identifier: LGPL-2.1-or-later
 LIBNVME_UNRELEASED {
 	global:
+		nvme_get_features_temp_thresh2;
 		nvme_set_features_temp_thresh2;
 		nvme_subsystem_get_serial;
 };

src/nvme/ioctl.c

@@ -1091,6 +1091,26 @@ int nvme_get_features_temp_thresh(int fd, enum nvme_get_features_sel sel,
 	return __nvme_get_features(fd, NVME_FEAT_FID_TEMP_THRESH, sel, result);
 }
 
+int nvme_get_features_temp_thresh2(int fd, enum nvme_get_features_sel sel, __u8 tmpsel,
+				   enum nvme_feat_tmpthresh_thsel thsel, __u32 *result)
+{
+	struct nvme_get_features_args args = {
+		.args_size = sizeof(args),
+		.fd = fd,
+		.fid = NVME_FEAT_FID_TEMP_THRESH,
+		.nsid = NVME_NSID_NONE,
+		.sel = sel,
+		.cdw11 = NVME_SET(tmpsel, FEAT_TT_TMPSEL) | NVME_SET(thsel, FEAT_TT_THSEL),
+		.uuidx = NVME_UUID_NONE,
+		.data_len = 0,
+		.data = NULL,
+		.timeout = NVME_DEFAULT_IOCTL_TIMEOUT,
+		.result = result,
+	};
+
+	return nvme_get_features(&args);
+}
+
 int nvme_get_features_err_recovery(int fd, enum nvme_get_features_sel sel,
 				   __u32 *result)
 {

src/nvme/ioctl.h

@@ -3225,6 +3225,20 @@ int nvme_get_features_lba_range2(int fd, enum nvme_get_features_sel sel,
 int nvme_get_features_temp_thresh(int fd, enum nvme_get_features_sel sel,
 				  __u32 *result);
 
+/**
+ * nvme_get_features_temp_thresh2() - Get temperature threshold feature
+ * @fd:		File descriptor of nvme device
+ * @sel:	Select which type of attribute to return, see &enum nvme_get_features_sel
+ * @tmpsel:	Threshold Temperature Select
+ * @thsel:	Threshold Type Select
+ * @result:	The command completion result from CQE dword0
+ *
+ * Return: The nvme command status if a response was received (see
+ * &enum nvme_status_field) or -1 with errno set otherwise.
+ */
+int nvme_get_features_temp_thresh2(int fd, enum nvme_get_features_sel sel, __u8 tmpsel,
+				   enum nvme_feat_tmpthresh_thsel thsel, __u32 *result);
+
 /**
  * nvme_get_features_err_recovery() - Get error recovery feature
  *