[Intel-wired-lan] [PATCH 4/4] devlink: add support for DEVLINK_CMD_REGION_TRIGGER_SNAPSHOT
Jacob Keller
jacob.e.keller at intel.com
Thu Jan 9 01:08:19 UTC 2020
Add support for the devlink command to trigger a snapshot if the region
supports it.
Signed-off-by: Jacob Keller <jacob.e.keller at intel.com>
---
devlink/devlink.c | 20 ++++++++++++++++++++
include/uapi/linux/devlink.h | 2 ++
2 files changed, 22 insertions(+)
diff --git a/devlink/devlink.c b/devlink/devlink.c
index 95f05a0b..3a473531 100644
--- a/devlink/devlink.c
+++ b/devlink/devlink.c
@@ -4200,6 +4200,7 @@ static const char *cmd_obj(uint8_t cmd)
case DEVLINK_CMD_REGION_SET:
case DEVLINK_CMD_REGION_NEW:
case DEVLINK_CMD_REGION_DEL:
+ case DEVLINK_CMD_REGION_TRIGGER_SNAPSHOT:
return "region";
case DEVLINK_CMD_FLASH_UPDATE:
case DEVLINK_CMD_FLASH_UPDATE_END:
@@ -6362,12 +6363,28 @@ static int cmd_region_read(struct dl *dl)
return err;
}
+static int cmd_region_trigger(struct dl *dl)
+{
+ struct nlmsghdr *nlh;
+ int err;
+
+ nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_REGION_TRIGGER_SNAPSHOT,
+ NLM_F_REQUEST | NLM_F_ACK);
+
+ err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE_REGION, 0);
+ if (err)
+ return err;
+
+ return _mnlg_socket_sndrcv(dl->nlg, nlh, NULL, NULL);
+}
+
static void cmd_region_help(void)
{
pr_err("Usage: devlink region show [ DEV/REGION ]\n");
pr_err(" devlink region del DEV/REGION snapshot SNAPSHOT_ID\n");
pr_err(" devlink region dump DEV/REGION [ snapshot SNAPSHOT_ID ]\n");
pr_err(" devlink region read DEV/REGION [ snapshot SNAPSHOT_ID ] address ADDRESS length LENGTH\n");
+ pr_err(" devlink region trigger DEV/REGION\n");
}
static int cmd_region(struct dl *dl)
@@ -6389,6 +6406,9 @@ static int cmd_region(struct dl *dl)
} else if (dl_argv_match(dl, "read")) {
dl_arg_inc(dl);
return cmd_region_read(dl);
+ } else if (dl_argv_match(dl, "trigger")) {
+ dl_arg_inc(dl);
+ return cmd_region_trigger(dl);
}
pr_err("Command \"%s\" not found\n", dl_argv(dl));
return -ENOENT;
diff --git a/include/uapi/linux/devlink.h b/include/uapi/linux/devlink.h
index 3f82dedd..37348f84 100644
--- a/include/uapi/linux/devlink.h
+++ b/include/uapi/linux/devlink.h
@@ -117,6 +117,8 @@ enum devlink_command {
DEVLINK_CMD_TRAP_GROUP_NEW,
DEVLINK_CMD_TRAP_GROUP_DEL,
+ DEVLINK_CMD_REGION_TRIGGER_SNAPSHOT,
+
/* add new commands above here */
__DEVLINK_CMD_MAX,
DEVLINK_CMD_MAX = __DEVLINK_CMD_MAX - 1
--
2.21.0
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