netdev - [PATCH RFC net-next 06/19] devlink: Add health recover command

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Message-Id: <1546266733-9512-7-git-send-email-eranbe@mellanox.com>
Date:   Mon, 31 Dec 2018 16:32:00 +0200
From:   Eran Ben Elisha <eranbe@...lanox.com>
To:     netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
        Jiri Pirko <jiri@...lanox.com>
Cc:     Moshe Shemesh <moshe@...lanox.com>, Aya Levin <ayal@...lanox.com>,
        Eran Ben Elisha <eranbe@...lanox.com>,
        Tal Alon <talal@...lanox.com>,
        Ariel Almog <ariela@...lanox.com>
Subject: [PATCH RFC net-next 06/19] devlink: Add health recover command

Add devlink health recover command to the uapi, in order to allow the user
to execute a recover operation over a specific reporter.

Signed-off-by: Eran Ben Elisha <eranbe@...lanox.com>
---
 include/uapi/linux/devlink.h |  1 +
 net/core/devlink.c           | 20 ++++++++++++++++++++
 2 files changed, 21 insertions(+)

diff --git a/include/uapi/linux/devlink.h b/include/uapi/linux/devlink.h
index 7b6253c3fc89..243819560715 100644
--- a/include/uapi/linux/devlink.h
+++ b/include/uapi/linux/devlink.h
@@ -91,6 +91,7 @@ enum devlink_command {
 
 	DEVLINK_CMD_HEALTH_REPORTER_GET,
 	DEVLINK_CMD_HEALTH_REPORTER_SET,
+	DEVLINK_CMD_HEALTH_REPORTER_RECOVER,
 
 	/* add new commands above here */
 	__DEVLINK_CMD_MAX,
diff --git a/net/core/devlink.c b/net/core/devlink.c
index c0959242d891..31fff86390e3 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -4471,6 +4471,19 @@ devlink_nl_cmd_health_reporter_set_doit(struct sk_buff *skb,
 	return 0;
 }
 
+static int devlink_nl_cmd_health_reporter_recover_doit(struct sk_buff *skb,
+						       struct genl_info *info)
+{
+	struct devlink *devlink = info->user_ptr[0];
+	struct devlink_health_reporter *reporter;
+
+	reporter = devlink_health_reporter_get_from_info(devlink, info);
+	if (!reporter)
+		return -EINVAL;
+
+	return devlink_health_reporter_recover(reporter, NULL);
+}
+
 static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = {
 	[DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING },
 	[DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING },
@@ -4734,6 +4747,13 @@ static const struct genl_ops devlink_nl_ops[] = {
 		.flags = GENL_ADMIN_PERM,
 		.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
 	},
+	{
+		.cmd = DEVLINK_CMD_HEALTH_REPORTER_RECOVER,
+		.doit = devlink_nl_cmd_health_reporter_recover_doit,
+		.policy = devlink_nl_policy,
+		.flags = GENL_ADMIN_PERM,
+		.internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK,
+	},
 };
 
 static struct genl_family devlink_nl_family __ro_after_init = {
-- 
2.17.1