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Message-Id: <1550756567-18227-10-git-send-email-ayal@mellanox.com>
Date:   Thu, 21 Feb 2019 15:42:45 +0200
From:   Aya Levin <ayal@...lanox.com>
To:     David Ahern <dsahern@...il.com>
Cc:     netdev@...r.kernel.org, Jiri Pirko <jiri@...lanox.com>,
        Moshe Shemesh <moshe@...lanox.com>,
        Eran Ben Elisha <eranbe@...lanox.com>,
        Aya Levin <ayal@...lanox.com>
Subject: [PATCH v2 iproute2-next 09/11] devlink: Add devlink health dump clear command

Add devlink dump clear command which deletes the last saved dump file.
Clearing the last saved dump enables a new dump file to be saved.
Example:
$ devlink health dump clear pci/0000:00:09.0 reporter tx

Signed-off-by: Aya Levin <ayal@...lanox.com>
Reviewed-by: Moshe Shemesh <moshe@...lanox.com>
Acked-by: Jiri Pirko <jiri@...lanox.com>
---
 devlink/devlink.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/devlink/devlink.c b/devlink/devlink.c
index 627f8e819aa5..f36bbeca5641 100644
--- a/devlink/devlink.c
+++ b/devlink/devlink.c
@@ -5765,6 +5765,23 @@ static int cmd_region(struct dl *dl)
 	return -ENOENT;
 }
 
+static int cmd_health_dump_clear(struct dl *dl)
+{
+	struct nlmsghdr *nlh;
+	int err;
+
+	nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_HEALTH_REPORTER_DUMP_CLEAR,
+			       NLM_F_REQUEST | NLM_F_ACK);
+
+	err = dl_argv_parse_put(nlh, dl,
+				DL_OPT_HANDLE | DL_OPT_HEALTH_REPORTER_NAME, 0);
+	if (err)
+		return err;
+
+	dl_opts_put(nlh, dl);
+	return _mnlg_socket_sndrcv(dl->nlg, nlh, NULL, NULL);
+}
+
 static int fmsg_value_show(struct dl *dl, int type, struct nlattr *nl_data)
 {
 	uint8_t *data;
@@ -6112,6 +6129,7 @@ static void cmd_health_help(void)
 	pr_err("       devlink health recover DEV reporter REPORTER_NAME\n");
 	pr_err("       devlink health diagnose DEV reporter REPORTER_NAME\n");
 	pr_err("       devlink health dump show DEV reporter REPORTER_NAME\n");
+	pr_err("       devlink health dump clear DEV reporter REPORTER_NAME\n");
 }
 
 static int cmd_health(struct dl *dl)
@@ -6134,6 +6152,9 @@ static int cmd_health(struct dl *dl)
 		if (dl_argv_match(dl, "show")) {
 			dl_arg_inc(dl);
 			return cmd_health_dump_show(dl);
+		} else if (dl_argv_match(dl, "clear")) {
+			dl_arg_inc(dl);
+			return cmd_health_dump_clear(dl);
 		}
 	}
 
-- 
2.14.1

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