[PATCH v2 iproute2-next 06/11] devlink: Add devlink health recover command

[Aya Levin]

Add devlink health recover command which enables the user to initiate a
recovery on a reporter (if a recovery cb was supplied by the reporter).
This operation will increment the recoveries counter displayed in the
show command.
Example:
$ devlink health recover pci/0000:00:09.0 reporter tx

Signed-off-by: Aya Levin <a...@mellanox.com>
Reviewed-by: Moshe Shemesh <mo...@mellanox.com>
Acked-by: Jiri Pirko <j...@mellanox.com>
---
 devlink/devlink.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/devlink/devlink.c b/devlink/devlink.c
index 5685f1e5113a..3ec0ef4b95b2 100644
--- a/devlink/devlink.c
+++ b/devlink/devlink.c
@@ -5764,6 +5764,23 @@ static int cmd_region(struct dl *dl)
        return -ENOENT;
 }
 
+static int cmd_health_recover(struct dl *dl)
+{
+       struct nlmsghdr *nlh;
+       int err;
+
+       nlh = mnlg_msg_prepare(dl->nlg, DEVLINK_CMD_HEALTH_REPORTER_RECOVER,
+                              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);
+}
+
 enum devlink_health_reporter_state {
        DEVLINK_HEALTH_REPORTER_STATE_HEALTHY,
        DEVLINK_HEALTH_REPORTER_STATE_ERROR,
@@ -5904,6 +5921,7 @@ static int cmd_health_show(struct dl *dl)
 static void cmd_health_help(void)
 {
        pr_err("Usage: devlink health show [ dev DEV reporter REPORTER_NAME 
]\n");
+       pr_err("       devlink health recover DEV reporter REPORTER_NAME\n");
 }
 
 static int cmd_health(struct dl *dl)
@@ -5915,6 +5933,9 @@ static int cmd_health(struct dl *dl)
                   dl_argv_match(dl, "list") || dl_no_arg(dl)) {
                dl_arg_inc(dl);
                return cmd_health_show(dl);
+       } else if (dl_argv_match(dl, "recover")) {
+               dl_arg_inc(dl);
+               return cmd_health_recover(dl);
        }
 
        pr_err("Command \"%s\" not found\n", dl_argv(dl));
-- 
2.14.1