In preparation for a reconfigure-device command, allow JSON listings to display the 'mode' of a dax device. This will allow the reconfigure-device command (and via daxctl_dev_to_json(), also daxctl-list) to print the mode in device listings via a 'daxctl-list' command or immediately after a mode change.
Add a 'state' attribute to the json listings for devices, since a device could end up in a state where it is not bound to any driver, and hence, 'disabled'. The state attribute is only displayed for disabled devices. Cc: Dave Hansen <[email protected]> Cc: Dan Williams <[email protected]> Signed-off-by: Vishal Verma <[email protected]> --- daxctl/lib/libdaxctl.c | 2 ++ util/json.c | 14 ++++++++++++++ 2 files changed, 16 insertions(+) diff --git a/daxctl/lib/libdaxctl.c b/daxctl/lib/libdaxctl.c index a14954b..c2a2a50 100644 --- a/daxctl/lib/libdaxctl.c +++ b/daxctl/lib/libdaxctl.c @@ -12,6 +12,8 @@ */ #include <stdio.h> #include <errno.h> +#include <limits.h> +#include <libgen.h> #include <stdlib.h> #include <dirent.h> #include <unistd.h> diff --git a/util/json.c b/util/json.c index f521337..9f80b5b 100644 --- a/util/json.c +++ b/util/json.c @@ -269,6 +269,7 @@ struct json_object *util_dimm_to_json(struct ndctl_dimm *dimm, struct json_object *util_daxctl_dev_to_json(struct daxctl_dev *dev, unsigned long flags) { + struct daxctl_memory *mem = daxctl_dev_get_memory(dev); const char *devname = daxctl_dev_get_devname(dev); struct json_object *jdev, *jobj; int node; @@ -292,6 +293,19 @@ struct json_object *util_daxctl_dev_to_json(struct daxctl_dev *dev, json_object_object_add(jdev, "target_node", jobj); } + if (mem) + jobj = json_object_new_string("system-ram"); + else + jobj = json_object_new_string("devdax"); + if (jobj) + json_object_object_add(jdev, "mode", jobj); + + if (!daxctl_dev_is_enabled(dev)) { + jobj = json_object_new_string("disabled"); + if (jobj) + json_object_object_add(jdev, "state", jobj); + } + return jdev; } -- 2.20.1 _______________________________________________ Linux-nvdimm mailing list [email protected] https://lists.01.org/mailman/listinfo/linux-nvdimm
