1:03 p.m.
Add libcxl APIs to create a new GET_HEALTH_INFO mailbox command, the
command output data structure (privately), and accessor APIs to return
the different fields in the health info output.
Signed-off-by: Vishal Verma <vishal.l.verma(a)intel.com>
---
cxl/lib/private.h | 11 +++++++++
cxl/lib/libcxl.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++
cxl/libcxl.h | 9 +++++++
cxl/lib/libcxl.sym | 9 +++++++
4 files changed, 90 insertions(+)
diff --git a/cxl/lib/private.h b/cxl/lib/private.h
index 3273f21..2232f4c 100644
--- a/cxl/lib/private.h
+++ b/cxl/lib/private.h
@@ -73,6 +73,17 @@ struct cxl_cmd_identify {
u8 qos_telemetry_caps;
} __attribute__((packed));
+struct cxl_cmd_get_health_info {
+ u8 health_status;
+ u8 media_status;
+ u8 ext_status;
+ u8 life_used;
+ le16 temperature;
+ le32 dirty_shutdowns;
+ le32 volatile_errors;
+ le32 pmem_errors;
+} __attribute__((packed));
+
static inline int check_kmod(struct kmod_ctx *kmod_ctx)
{
return kmod_ctx ? 0 : -ENXIO;
diff --git a/cxl/lib/libcxl.c b/cxl/lib/libcxl.c
index 4751cba..d595d36 100644
--- a/cxl/lib/libcxl.c
+++ b/cxl/lib/libcxl.c
@@ -678,6 +678,67 @@ CXL_EXPORT const char *cxl_cmd_get_devname(struct cxl_cmd *cmd)
return cxl_memdev_get_devname(cmd->memdev);
}
+#define cmd_get_int(cmd, n, N, field) \
+do { \
+ struct cxl_cmd_##n *c = (void *)cmd->send_cmd->out.payload; \
+ if (cmd->send_cmd->id != CXL_MEM_COMMAND_ID_##N) \
+ return EINVAL; \
+ if (cmd->status < 0) \
+ return cmd->status; \
+ return le32_to_cpu(c->field); \
+} while(0);
+
+CXL_EXPORT struct cxl_cmd *cxl_cmd_new_get_health_info(
+ struct cxl_memdev *memdev)
+{
+ return cxl_cmd_new_generic(memdev, CXL_MEM_COMMAND_ID_GET_HEALTH_INFO);
+}
+
+#define cmd_health_get_int(c, f) \
+do { \
+ cmd_get_int(c, get_health_info, GET_HEALTH_INFO, f); \
+} while (0);
+
+CXL_EXPORT int cxl_cmd_get_health_info_get_health_status(struct cxl_cmd *cmd)
+{
+ cmd_health_get_int(cmd, health_status);
+}
+
+CXL_EXPORT int cxl_cmd_get_health_info_get_media_status(struct cxl_cmd *cmd)
+{
+ cmd_health_get_int(cmd, media_status);
+}
+
+CXL_EXPORT int cxl_cmd_get_health_info_get_ext_status(struct cxl_cmd *cmd)
+{
+ cmd_health_get_int(cmd, ext_status);
+}
+
+CXL_EXPORT int cxl_cmd_get_health_info_get_life_used(struct cxl_cmd *cmd)
+{
+ cmd_health_get_int(cmd, life_used);
+}
+
+CXL_EXPORT int cxl_cmd_get_health_info_get_temperature(struct cxl_cmd *cmd)
+{
+ cmd_health_get_int(cmd, temperature);
+}
+
+CXL_EXPORT int cxl_cmd_get_health_info_get_dirty_shutdowns(struct cxl_cmd *cmd)
+{
+ cmd_health_get_int(cmd, dirty_shutdowns);
+}
+
+CXL_EXPORT int cxl_cmd_get_health_info_get_volatile_errors(struct cxl_cmd *cmd)
+{
+ cmd_health_get_int(cmd, volatile_errors);
+}
+
+CXL_EXPORT int cxl_cmd_get_health_info_get_pmem_errors(struct cxl_cmd *cmd)
+{
+ cmd_health_get_int(cmd, pmem_errors);
+}
+
CXL_EXPORT struct cxl_cmd *cxl_cmd_new_identify(struct cxl_memdev *memdev)
{
return cxl_cmd_new_generic(memdev, CXL_MEM_COMMAND_ID_IDENTIFY);
diff --git a/cxl/libcxl.h b/cxl/libcxl.h
index 9ed8c83..56ae4af 100644
--- a/cxl/libcxl.h
+++ b/cxl/libcxl.h
@@ -62,6 +62,15 @@ struct cxl_cmd *cxl_cmd_new_identify(struct cxl_memdev *memdev);
int cxl_cmd_identify_get_fw_rev(struct cxl_cmd *cmd, char *fw_rev, int fw_len);
unsigned long long cxl_cmd_identify_get_partition_align(struct cxl_cmd *cmd);
unsigned int cxl_cmd_identify_get_lsa_size(struct cxl_cmd *cmd);
+struct cxl_cmd *cxl_cmd_new_get_health_info(struct cxl_memdev *memdev);
+int cxl_cmd_get_health_info_get_health_status(struct cxl_cmd *cmd);
+int cxl_cmd_get_health_info_get_media_status(struct cxl_cmd *cmd);
+int cxl_cmd_get_health_info_get_ext_status(struct cxl_cmd *cmd);
+int cxl_cmd_get_health_info_get_life_used(struct cxl_cmd *cmd);
+int cxl_cmd_get_health_info_get_temperature(struct cxl_cmd *cmd);
+int cxl_cmd_get_health_info_get_dirty_shutdowns(struct cxl_cmd *cmd);
+int cxl_cmd_get_health_info_get_volatile_errors(struct cxl_cmd *cmd);
+int cxl_cmd_get_health_info_get_pmem_errors(struct cxl_cmd *cmd);
#ifdef __cplusplus
} /* extern "C" */
diff --git a/cxl/lib/libcxl.sym b/cxl/lib/libcxl.sym
index d6aa0b2..e00443d 100644
--- a/cxl/lib/libcxl.sym
+++ b/cxl/lib/libcxl.sym
@@ -43,4 +43,13 @@ global:
cxl_cmd_identify_get_fw_rev;
cxl_cmd_identify_get_partition_align;
cxl_cmd_identify_get_lsa_size;
+ cxl_cmd_new_get_health_info;
+ cxl_cmd_get_health_info_get_health_status;
+ cxl_cmd_get_health_info_get_media_status;
+ cxl_cmd_get_health_info_get_ext_status;
+ cxl_cmd_get_health_info_get_life_used;
+ cxl_cmd_get_health_info_get_temperature;
+ cxl_cmd_get_health_info_get_dirty_shutdowns;
+ cxl_cmd_get_health_info_get_volatile_errors;
+ cxl_cmd_get_health_info_get_pmem_errors;
} LIBCXL_2;
--
2.29.2