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devlink: Add devlink health recover command 

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 <ayal@mellanox.com>
Reviewed-by: Moshe Shemesh <moshe@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
This commit is contained in:
Aya Levin 2019-02-28 14:12:59 +02:00 committed by David Ahern
parent 2f1242efe9
commit 9083a1344d
1 changed files with 21 additions and 0 deletions
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21
devlink/devlink.c
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@ -5815,6 +5815,23 @@ 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,
@ -5954,6 +5971,7 @@ 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)
@ -5965,6 +5983,9 @@ 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));
return -ENOENT;