From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eran Ben Elisha Subject: [PATCH RFC net-next 05/19] devlink: Add health set command Date: Mon, 31 Dec 2018 16:31:59 +0200 Message-ID: <1546266733-9512-6-git-send-email-eranbe@mellanox.com> References: <1546266733-9512-1-git-send-email-eranbe@mellanox.com> Cc: Moshe Shemesh , Aya Levin , Eran Ben Elisha , Tal Alon , Ariel Almog To: netdev@vger.kernel.org, "David S. Miller" , Jiri Pirko Return-path: Received: from mail-il-dmz.mellanox.com ([193.47.165.129]:52204 "EHLO mellanox.co.il" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726625AbeLaOcZ (ORCPT ); Mon, 31 Dec 2018 09:32:25 -0500 In-Reply-To: <1546266733-9512-1-git-send-email-eranbe@mellanox.com> Sender: netdev-owner@vger.kernel.org List-ID: Add devlink health set command, in order to set configuration parameters for a specific reporter. Supported parameters are: - graceful_period: Time interval between auto recoveries (in msec) - auto_recover: Determines if the devlink shall execute recover upon receiving error for the reporter Signed-off-by: Eran Ben Elisha --- include/uapi/linux/devlink.h | 1 + net/core/devlink.c | 36 ++++++++++++++++++++++++++++++++++++ 2 files changed, 37 insertions(+) diff --git a/include/uapi/linux/devlink.h b/include/uapi/linux/devlink.h index 5d35fabf25bf..7b6253c3fc89 100644 --- a/include/uapi/linux/devlink.h +++ b/include/uapi/linux/devlink.h @@ -90,6 +90,7 @@ enum devlink_command { DEVLINK_CMD_REGION_READ, DEVLINK_CMD_HEALTH_REPORTER_GET, + DEVLINK_CMD_HEALTH_REPORTER_SET, /* add new commands above here */ __DEVLINK_CMD_MAX, diff --git a/net/core/devlink.c b/net/core/devlink.c index 4e6624f889aa..c0959242d891 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -4444,6 +4444,33 @@ devlink_nl_cmd_health_reporter_get_dumpit(struct sk_buff *msg, return msg->len; } +static int +devlink_nl_cmd_health_reporter_set_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; + + if (!reporter->ops->recover && + (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] || + info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER])) + return -EINVAL; + + if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD]) + reporter->graceful_period = + nla_get_u64(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD]); + + if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]) + reporter->auto_recover = + nla_get_u8(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]); + + return 0; +} + 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 }, @@ -4470,6 +4497,8 @@ static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = { [DEVLINK_ATTR_REGION_NAME] = { .type = NLA_NUL_STRING }, [DEVLINK_ATTR_REGION_SNAPSHOT_ID] = { .type = NLA_U32 }, [DEVLINK_ATTR_HEALTH_REPORTER_NAME] = { .type = NLA_NUL_STRING }, + [DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] = { .type = NLA_U64 }, + [DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER] = { .type = NLA_U8 }, }; static const struct genl_ops devlink_nl_ops[] = { @@ -4698,6 +4727,13 @@ static const struct genl_ops devlink_nl_ops[] = { .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, /* can be retrieved by unprivileged users */ }, + { + .cmd = DEVLINK_CMD_HEALTH_REPORTER_SET, + .doit = devlink_nl_cmd_health_reporter_set_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