From mboxrd@z Thu Jan 1 00:00:00 1970 From: Subject: [PATCH v3 net-next 08/14] tipc: add link stat reset to new netlink api Date: Thu, 20 Nov 2014 10:29:14 +0100 Message-ID: <1416475760-18914-9-git-send-email-richard.alpe@ericsson.com> References: <1416475760-18914-1-git-send-email-richard.alpe@ericsson.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: tipc-discussion@lists.sourceforge.net To: Return-path: In-Reply-To: <1416475760-18914-1-git-send-email-richard.alpe@ericsson.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: tipc-discussion-bounces@lists.sourceforge.net List-Id: netdev.vger.kernel.org From: Richard Alpe Add TIPC_NL_LINK_RESET_STATS command to the new netlink API. This command resets the link statistics for a particular link. Netlink logical layout of link reset message: -> link -> name Signed-off-by: Richard Alpe Reviewed-by: Erik Hugne Reviewed-by: Jon Maloy Acked-by: Ying Xue --- include/uapi/linux/tipc_netlink.h | 1 + net/tipc/link.c | 49 +++++++++++++++++++++++++++++++++++++ net/tipc/link.h | 1 + net/tipc/netlink.c | 5 ++++ 4 files changed, 56 insertions(+) diff --git a/include/uapi/linux/tipc_netlink.h b/include/uapi/linux/tipc_netlink.h index 2deb7fd..574882a 100644 --- a/include/uapi/linux/tipc_netlink.h +++ b/include/uapi/linux/tipc_netlink.h @@ -49,6 +49,7 @@ enum { TIPC_NL_PUBL_GET, TIPC_NL_LINK_GET, TIPC_NL_LINK_SET, + TIPC_NL_LINK_RESET_STATS, __TIPC_NL_CMD_MAX, TIPC_NL_CMD_MAX = __TIPC_NL_CMD_MAX - 1 diff --git a/net/tipc/link.c b/net/tipc/link.c index 6785dcf..629e8cf 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -2783,3 +2783,52 @@ err_out: return err; } + +int tipc_nl_link_reset_stats(struct sk_buff *skb, struct genl_info *info) +{ + int err; + char *link_name; + unsigned int bearer_id; + struct tipc_link *link; + struct tipc_node *node; + struct nlattr *attrs[TIPC_NLA_LINK_MAX + 1]; + + if (!info->attrs[TIPC_NLA_LINK]) + return -EINVAL; + + err = nla_parse_nested(attrs, TIPC_NLA_LINK_MAX, + info->attrs[TIPC_NLA_LINK], + tipc_nl_link_policy); + if (err) + return err; + + if (!attrs[TIPC_NLA_LINK_NAME]) + return -EINVAL; + + link_name = nla_data(attrs[TIPC_NLA_LINK_NAME]); + + if (strcmp(link_name, tipc_bclink_name) == 0) { + err = tipc_bclink_reset_stats(); + if (err) + return err; + return 0; + } + + node = tipc_link_find_owner(link_name, &bearer_id); + if (!node) + return -EINVAL; + + tipc_node_lock(node); + + link = node->links[bearer_id]; + if (!link) { + tipc_node_unlock(node); + return -EINVAL; + } + + link_reset_statistics(link); + + tipc_node_unlock(node); + + return 0; +} diff --git a/net/tipc/link.h b/net/tipc/link.h index 3738ba1..f463e7b 100644 --- a/net/tipc/link.h +++ b/net/tipc/link.h @@ -243,6 +243,7 @@ void tipc_link_retransmit(struct tipc_link *l_ptr, int tipc_nl_link_dump(struct sk_buff *skb, struct netlink_callback *cb); int tipc_nl_link_get(struct sk_buff *skb, struct genl_info *info); int tipc_nl_link_set(struct sk_buff *skb, struct genl_info *info); +int tipc_nl_link_reset_stats(struct sk_buff *skb, struct genl_info *info); int tipc_nl_parse_link_prop(struct nlattr *prop, struct nlattr *props[]); /* diff --git a/net/tipc/netlink.c b/net/tipc/netlink.c index d4444e5..68bfd11 100644 --- a/net/tipc/netlink.c +++ b/net/tipc/netlink.c @@ -149,6 +149,11 @@ static const struct genl_ops tipc_genl_v2_ops[] = { .cmd = TIPC_NL_LINK_SET, .doit = tipc_nl_link_set, .policy = tipc_nl_policy, + }, + { + .cmd = TIPC_NL_LINK_RESET_STATS, + .doit = tipc_nl_link_reset_stats, + .policy = tipc_nl_policy, } }; -- 1.7.10.4 ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk