ethtool: add PAUSE_NTF notification

[linux-block.git] / net / ethtool / netlink.c

diff --git a/net/ethtool/netlink.c b/net/ethtool/netlink.c
index fc9e0b80688982e6087e58216bc1d30a61c4cdfe..4d492f1b3480638c6f51da4a82dc3196c42e8a86 100644 (file)
--- a/net/ethtool/netlink.c
+++ b/net/ethtool/netlink.c
@@ -18,7 +18,7 @@ static const struct nla_policy ethnl_header_policy[ETHTOOL_A_HEADER_MAX + 1] = {
 };
 
 /**
- * ethnl_parse_header() - parse request header
+ * ethnl_parse_header_dev_get() - parse request header
  * @req_info:    structure to put results into
  * @header:      nest attribute with request header
  * @net:         request netns
@@ -33,9 +33,9 @@ static const struct nla_policy ethnl_header_policy[ETHTOOL_A_HEADER_MAX + 1] = {
  *
  * Return: 0 on success or negative error code
  */
-int ethnl_parse_header(struct ethnl_req_info *req_info,
-                      const struct nlattr *header, struct net *net,
-                      struct netlink_ext_ack *extack, bool require_dev)
+int ethnl_parse_header_dev_get(struct ethnl_req_info *req_info,
+                              const struct nlattr *header, struct net *net,
+                              struct netlink_ext_ack *extack, bool require_dev)
 {
        struct nlattr *tb[ETHTOOL_A_HEADER_MAX + 1];
        const struct nlattr *devname_attr;
@@ -223,6 +223,12 @@ ethnl_default_requests[__ETHTOOL_MSG_USER_CNT] = {
        [ETHTOOL_MSG_LINKSTATE_GET]     = &ethnl_linkstate_request_ops,
        [ETHTOOL_MSG_DEBUG_GET]         = &ethnl_debug_request_ops,
        [ETHTOOL_MSG_WOL_GET]           = &ethnl_wol_request_ops,
+       [ETHTOOL_MSG_FEATURES_GET]      = &ethnl_features_request_ops,
+       [ETHTOOL_MSG_PRIVFLAGS_GET]     = &ethnl_privflags_request_ops,
+       [ETHTOOL_MSG_RINGS_GET]         = &ethnl_rings_request_ops,
+       [ETHTOOL_MSG_CHANNELS_GET]      = &ethnl_channels_request_ops,
+       [ETHTOOL_MSG_COALESCE_GET]      = &ethnl_coalesce_request_ops,
+       [ETHTOOL_MSG_PAUSE_GET]         = &ethnl_pause_request_ops,
 };
 
 static struct ethnl_dump_ctx *ethnl_dump_context(struct netlink_callback *cb)
@@ -261,8 +267,8 @@ static int ethnl_default_parse(struct ethnl_req_info *req_info,
                          request_ops->request_policy, extack);
        if (ret < 0)
                goto out;
-       ret = ethnl_parse_header(req_info, tb[request_ops->hdr_attr], net,
-                                extack, require_dev);
+       ret = ethnl_parse_header_dev_get(req_info, tb[request_ops->hdr_attr],
+                                        net, extack, require_dev);
        if (ret < 0)
                goto out;
 
@@ -535,6 +541,12 @@ ethnl_default_notify_ops[ETHTOOL_MSG_KERNEL_MAX + 1] = {
        [ETHTOOL_MSG_LINKMODES_NTF]     = &ethnl_linkmodes_request_ops,
        [ETHTOOL_MSG_DEBUG_NTF]         = &ethnl_debug_request_ops,
        [ETHTOOL_MSG_WOL_NTF]           = &ethnl_wol_request_ops,
+       [ETHTOOL_MSG_FEATURES_NTF]      = &ethnl_features_request_ops,
+       [ETHTOOL_MSG_PRIVFLAGS_NTF]     = &ethnl_privflags_request_ops,
+       [ETHTOOL_MSG_RINGS_NTF]         = &ethnl_rings_request_ops,
+       [ETHTOOL_MSG_CHANNELS_NTF]      = &ethnl_channels_request_ops,
+       [ETHTOOL_MSG_COALESCE_NTF]      = &ethnl_coalesce_request_ops,
+       [ETHTOOL_MSG_PAUSE_NTF]         = &ethnl_pause_request_ops,
 };
 
 /* default notification handler */
@@ -620,6 +632,12 @@ static const ethnl_notify_handler_t ethnl_notify_handlers[] = {
        [ETHTOOL_MSG_LINKMODES_NTF]     = ethnl_default_notify,
        [ETHTOOL_MSG_DEBUG_NTF]         = ethnl_default_notify,
        [ETHTOOL_MSG_WOL_NTF]           = ethnl_default_notify,
+       [ETHTOOL_MSG_FEATURES_NTF]      = ethnl_default_notify,
+       [ETHTOOL_MSG_PRIVFLAGS_NTF]     = ethnl_default_notify,
+       [ETHTOOL_MSG_RINGS_NTF]         = ethnl_default_notify,
+       [ETHTOOL_MSG_CHANNELS_NTF]      = ethnl_default_notify,
+       [ETHTOOL_MSG_COALESCE_NTF]      = ethnl_default_notify,
+       [ETHTOOL_MSG_PAUSE_NTF]         = ethnl_default_notify,
 };
 
 void ethtool_notify(struct net_device *dev, unsigned int cmd, const void *data)
@@ -637,6 +655,29 @@ void ethtool_notify(struct net_device *dev, unsigned int cmd, const void *data)
 }
 EXPORT_SYMBOL(ethtool_notify);
 
+static void ethnl_notify_features(struct netdev_notifier_info *info)
+{
+       struct net_device *dev = netdev_notifier_info_to_dev(info);
+
+       ethtool_notify(dev, ETHTOOL_MSG_FEATURES_NTF, NULL);
+}
+
+static int ethnl_netdev_event(struct notifier_block *this, unsigned long event,
+                             void *ptr)
+{
+       switch (event) {
+       case NETDEV_FEAT_CHANGE:
+               ethnl_notify_features(ptr);
+               break;
+       }
+
+       return NOTIFY_DONE;
+}
+
+static struct notifier_block ethnl_netdev_notifier = {
+       .notifier_call = ethnl_netdev_event,
+};
+
 /* genetlink setup */
 
 static const struct genl_ops ethtool_genl_ops[] = {
@@ -703,6 +744,78 @@ static const struct genl_ops ethtool_genl_ops[] = {
                .flags  = GENL_UNS_ADMIN_PERM,
                .doit   = ethnl_set_wol,
        },
+       {
+               .cmd    = ETHTOOL_MSG_FEATURES_GET,
+               .doit   = ethnl_default_doit,
+               .start  = ethnl_default_start,
+               .dumpit = ethnl_default_dumpit,
+               .done   = ethnl_default_done,
+       },
+       {
+               .cmd    = ETHTOOL_MSG_FEATURES_SET,
+               .flags  = GENL_UNS_ADMIN_PERM,
+               .doit   = ethnl_set_features,
+       },
+       {
+               .cmd    = ETHTOOL_MSG_PRIVFLAGS_GET,
+               .doit   = ethnl_default_doit,
+               .start  = ethnl_default_start,
+               .dumpit = ethnl_default_dumpit,
+               .done   = ethnl_default_done,
+       },
+       {
+               .cmd    = ETHTOOL_MSG_PRIVFLAGS_SET,
+               .flags  = GENL_UNS_ADMIN_PERM,
+               .doit   = ethnl_set_privflags,
+       },
+       {
+               .cmd    = ETHTOOL_MSG_RINGS_GET,
+               .doit   = ethnl_default_doit,
+               .start  = ethnl_default_start,
+               .dumpit = ethnl_default_dumpit,
+               .done   = ethnl_default_done,
+       },
+       {
+               .cmd    = ETHTOOL_MSG_RINGS_SET,
+               .flags  = GENL_UNS_ADMIN_PERM,
+               .doit   = ethnl_set_rings,
+       },
+       {
+               .cmd    = ETHTOOL_MSG_CHANNELS_GET,
+               .doit   = ethnl_default_doit,
+               .start  = ethnl_default_start,
+               .dumpit = ethnl_default_dumpit,
+               .done   = ethnl_default_done,
+       },
+       {
+               .cmd    = ETHTOOL_MSG_CHANNELS_SET,
+               .flags  = GENL_UNS_ADMIN_PERM,
+               .doit   = ethnl_set_channels,
+       },
+       {
+               .cmd    = ETHTOOL_MSG_COALESCE_GET,
+               .doit   = ethnl_default_doit,
+               .start  = ethnl_default_start,
+               .dumpit = ethnl_default_dumpit,
+               .done   = ethnl_default_done,
+       },
+       {
+               .cmd    = ETHTOOL_MSG_COALESCE_SET,
+               .flags  = GENL_UNS_ADMIN_PERM,
+               .doit   = ethnl_set_coalesce,
+       },
+       {
+               .cmd    = ETHTOOL_MSG_PAUSE_GET,
+               .doit   = ethnl_default_doit,
+               .start  = ethnl_default_start,
+               .dumpit = ethnl_default_dumpit,
+               .done   = ethnl_default_done,
+       },
+       {
+               .cmd    = ETHTOOL_MSG_PAUSE_SET,
+               .flags  = GENL_UNS_ADMIN_PERM,
+               .doit   = ethnl_set_pause,
+       },
 };
 
 static const struct genl_multicast_group ethtool_nl_mcgrps[] = {
@@ -731,7 +844,9 @@ static int __init ethnl_init(void)
                return ret;
        ethnl_ok = true;
 
-       return 0;
+       ret = register_netdevice_notifier(&ethnl_netdev_notifier);
+       WARN(ret < 0, "ethtool: net device notifier registration failed");
+       return ret;
 }
 
 subsys_initcall(ethnl_init);