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authorMichal Kubecek <mkubecek@suse.cz>2020-03-28 00:01:43 +0100
committerDavid S. Miller <davem@davemloft.net>2020-03-29 22:32:36 -0700
commitfd77be7bd43c578614165b1ae5fdb91b8f2f1689 (patch)
treeff5e458ea9d78e7a6cb1b0f03dbe8de923aea724 /net/ethtool/eee.c
parentb7eeefe72eb09a5dd9b259ab970d77d3e0fccdbd (diff)
downloadlinux-fd77be7bd43c578614165b1ae5fdb91b8f2f1689.tar.bz2
ethtool: set EEE settings with EEE_SET request
Implement EEE_SET netlink request to set EEE settings of a network device. These are traditionally set with ETHTOOL_SEEE ioctl request. The netlink interface allows setting the EEE status for all link modes supported by kernel but only first 32 link modes can be set at the moment as only those are supported by the ethtool_ops callback. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ethtool/eee.c')
-rw-r--r--net/ethtool/eee.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/net/ethtool/eee.c b/net/ethtool/eee.c
index 46244045319e..ded092d1b2b9 100644
--- a/net/ethtool/eee.c
+++ b/net/ethtool/eee.c
@@ -128,3 +128,76 @@ const struct ethnl_request_ops ethnl_eee_request_ops = {
.reply_size = eee_reply_size,
.fill_reply = eee_fill_reply,
};
+
+/* EEE_SET */
+
+static const struct nla_policy
+eee_set_policy[ETHTOOL_A_EEE_MAX + 1] = {
+ [ETHTOOL_A_EEE_UNSPEC] = { .type = NLA_REJECT },
+ [ETHTOOL_A_EEE_HEADER] = { .type = NLA_NESTED },
+ [ETHTOOL_A_EEE_MODES_OURS] = { .type = NLA_NESTED },
+ [ETHTOOL_A_EEE_MODES_PEER] = { .type = NLA_REJECT },
+ [ETHTOOL_A_EEE_ACTIVE] = { .type = NLA_REJECT },
+ [ETHTOOL_A_EEE_ENABLED] = { .type = NLA_U8 },
+ [ETHTOOL_A_EEE_TX_LPI_ENABLED] = { .type = NLA_U8 },
+ [ETHTOOL_A_EEE_TX_LPI_TIMER] = { .type = NLA_U32 },
+};
+
+int ethnl_set_eee(struct sk_buff *skb, struct genl_info *info)
+{
+ struct nlattr *tb[ETHTOOL_A_EEE_MAX + 1];
+ struct ethtool_eee eee = {};
+ struct ethnl_req_info req_info = {};
+ const struct ethtool_ops *ops;
+ struct net_device *dev;
+ bool mod = false;
+ int ret;
+
+ ret = nlmsg_parse(info->nlhdr, GENL_HDRLEN, tb, ETHTOOL_A_EEE_MAX,
+ eee_set_policy, info->extack);
+ if (ret < 0)
+ return ret;
+ ret = ethnl_parse_header_dev_get(&req_info,
+ tb[ETHTOOL_A_EEE_HEADER],
+ genl_info_net(info), info->extack,
+ true);
+ if (ret < 0)
+ return ret;
+ dev = req_info.dev;
+ ops = dev->ethtool_ops;
+ ret = -EOPNOTSUPP;
+ if (!ops->get_eee || !ops->set_eee)
+ goto out_dev;
+
+ rtnl_lock();
+ ret = ethnl_ops_begin(dev);
+ if (ret < 0)
+ goto out_rtnl;
+ ret = ops->get_eee(dev, &eee);
+ if (ret < 0)
+ goto out_ops;
+
+ ret = ethnl_update_bitset32(&eee.advertised, EEE_MODES_COUNT,
+ tb[ETHTOOL_A_EEE_MODES_OURS],
+ link_mode_names, info->extack, &mod);
+ if (ret < 0)
+ goto out_ops;
+ ethnl_update_bool32(&eee.eee_enabled, tb[ETHTOOL_A_EEE_ENABLED], &mod);
+ ethnl_update_bool32(&eee.tx_lpi_enabled,
+ tb[ETHTOOL_A_EEE_TX_LPI_ENABLED], &mod);
+ ethnl_update_bool32(&eee.tx_lpi_timer, tb[ETHTOOL_A_EEE_TX_LPI_TIMER],
+ &mod);
+ ret = 0;
+ if (!mod)
+ goto out_ops;
+
+ ret = dev->ethtool_ops->set_eee(dev, &eee);
+
+out_ops:
+ ethnl_ops_complete(dev);
+out_rtnl:
+ rtnl_unlock();
+out_dev:
+ dev_put(dev);
+ return ret;
+}