From: Keith Busch <kbusch@kernel.org>
Date: Tue, 23 Feb 2021 22:54:12 +0000 (+0900)
Subject: add lba status log helper
X-Git-Tag: v1.0-rc0~138
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=76ba7703e7f84764f315af006430cd8f43e8eb14;p=users%2Fsagi%2Flibnvme.git

add lba status log helper

This log requires a more complex multi-sequence to successfully get, so
add a helper.

Signed-off-by: Keith Busch <kbusch@kernel.org>
---

diff --git a/src/nvme/util.c b/src/nvme/util.c
index 175714e4..7d044bf5 100644
--- a/src/nvme/util.c
+++ b/src/nvme/util.c
@@ -339,11 +339,49 @@ int nvme_get_host_telemetry(int fd,  struct nvme_telemetry_log **log)
 	return nvme_get_telemetry_log(fd, false, false, false, log);
 }
 
-int nvme_get_new_host_telemetry(int fd,  struct nvme_telemetry_log  **log)
+int nvme_get_new_host_telemetry(int fd,  struct nvme_telemetry_log **log)
 {
 	return nvme_get_telemetry_log(fd, true, false, false, log);
 }
 
+int nvme_get_lba_status_log(int fd, bool rae, struct nvme_lba_status_log **log)
+{
+	__u32 size = sizeof(struct nvme_lba_status_log);
+	void *buf, *tmp;
+	int err;
+
+	buf = malloc(size);
+	if (!buf)
+		return -1;
+
+	*log = buf;
+	err = nvme_get_log_lba_status(fd, true, 0, size, buf);
+	if (err)
+		goto free;
+
+	size = le32_to_cpu((*log)->lslplen);
+	if (!size)
+		return 0;
+
+	tmp = realloc(buf, size);
+	if (!tmp) {
+		err = -1;
+		goto free;
+	}
+	buf = tmp;
+	*log = buf;
+
+	err = nvme_get_log_page(fd, NVME_NSID_NONE, NVME_LOG_LID_LBA_STATUS,
+				rae, size, buf);
+	if (!err)
+		return 0;
+
+free:
+	*log = NULL;
+	free(buf);
+	return err;
+}
+
 void nvme_init_dsm_range(struct nvme_dsm_range *dsm, __u32 *ctx_attrs,
 			 __u32 *llbas, __u64 *slbas, __u16 nr_ranges)
 {
diff --git a/src/nvme/util.h b/src/nvme/util.h
index 6534f631..a3541ab6 100644
--- a/src/nvme/util.h
+++ b/src/nvme/util.h
@@ -165,6 +165,14 @@ int nvme_get_log_page(int fd, __u32 nsid, __u8 log_id, bool rae,
  */
 int nvme_get_ana_log_len(int fd, size_t *analen);
 
+/**
+ * nvme_get_lba_status_log() - Retreive the LBA Status log page
+ * @fd:	   File descriptor of the nvme device
+ * @rae:   Retain asynchronous events
+ * @log:   On success, set to the value of the allocated and retreived log.
+ */
+int nvme_get_lba_status_log(int fd, bool rae, struct nvme_lba_status_log **log);
+
 /**
  * nvme_namespace_attach_ctrls() - Attach namespace to controller(s)
  * @fd:		File descriptor of nvme device