@@ -114,6 +114,7 @@ enum {
ND_CMD_ARS_START = 2,
ND_CMD_ARS_STATUS = 3,
ND_CMD_CLEAR_ERROR = 4,
+ /* 10 reserved for ND_CMD_CALL below */
/* per-dimm commands */
ND_CMD_SMART = 1,
@@ -125,6 +126,7 @@ enum {
ND_CMD_VENDOR_EFFECT_LOG_SIZE = 7,
ND_CMD_VENDOR_EFFECT_LOG = 8,
ND_CMD_VENDOR = 9,
+ ND_CMD_CALL = 10,
};
enum {
@@ -139,6 +141,7 @@ static inline const char *nvdimm_bus_cmd_name(unsigned cmd)
[ND_CMD_ARS_START] = "ars_start",
[ND_CMD_ARS_STATUS] = "ars_status",
[ND_CMD_CLEAR_ERROR] = "clear_error",
+ [ND_CMD_CALL] = "cmd_call",
};
if (cmd < ARRAY_SIZE(names) && names[cmd])
@@ -158,6 +161,7 @@ static inline const char *nvdimm_cmd_name(unsigned cmd)
[ND_CMD_VENDOR_EFFECT_LOG_SIZE] = "effect_size",
[ND_CMD_VENDOR_EFFECT_LOG] = "effect_log",
[ND_CMD_VENDOR] = "vendor",
+ [ND_CMD_CALL] = "cmd_call",
};
if (cmd < ARRAY_SIZE(names) && names[cmd])
@@ -224,4 +228,53 @@ enum ars_masks {
ARS_STATUS_MASK = 0x0000FFFF,
ARS_EXT_STATUS_SHIFT = 16,
};
+
+
+/*
+ * struct nd_cmd_pkg
+ *
+ * is a wrapper to a quasi pass thru interface for invoking firmware
+ * associated with nvdimms.
+ *
+ * INPUT PARAMETERS
+ *
+ * nd_family corresponds to the firmware (e.g. DSM) interface.
+ *
+ * nd_command are the function index advertised by the firmware.
+ *
+ * nd_size_in is the size of the input parameters being passed to firmware
+ *
+ * OUTPUT PARAMETERS
+ *
+ * nd_fw_size is the size of the data firmware wants to return for
+ * the call. If nd_fw_size is greater than size of nd_size_out, only
+ * the first nd_size_out bytes are returned.
+ */
+
+struct nd_cmd_pkg {
+ __u64 nd_family; /* family of commands, eg ND_TYPE_BUS */
+ __u64 nd_command;
+ __u32 nd_size_in; /* INPUT: size of input args */
+ __u32 nd_size_out; /* INPUT: size of payload */
+ __u32 nd_reserved2[9]; /* reserved must be zero */
+ __u32 nd_fw_size; /* OUTPUT: size fw wants to return */
+ unsigned char nd_payload[]; /* Contents of call */
+};
+
+/*
+ * the list nd_family of commands. The mapping to firmware handles
+ * is definied in the nfit_cmd_family_tbl
+ *
+ */
+#define ND_TYPE_BUS 1
+#define ND_TYPE_DIMM_INTEL1 2
+#define ND_TYPE_DIMM_N_HPE1 3
+#define ND_TYPE_DIMM_N_HPE2 4
+
+
+#define ND_IOCTL_CALL _IOWR(ND_IOCTL, ND_CMD_CALL,\
+ struct nd_cmd_pkg)
+
+
+
#endif /* __NDCTL_H__ */
Add struct nd_cmd_pkg which serves as a warapper for the data being passed via a pass thru to a NVDIMM DSM. This wrapper specifies the extra information in a uniform manner allowing the kenrel to call a DSM without knowing specifics of the DSM. Add dsm_call command to nvdimm_bus_cmd_name and nvdimm_cmd_name. Signed-off-by: Jerry Hoemann <jerry.hoemann@hpe.com> --- include/uapi/linux/ndctl.h | 53 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+)