summaryrefslogtreecommitdiffstats
path: root/net/ethtool/eee.c
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /net/ethtool/eee.c
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'net/ethtool/eee.c')
-rw-r--r--net/ethtool/eee.c174
1 files changed, 174 insertions, 0 deletions
diff --git a/net/ethtool/eee.c b/net/ethtool/eee.c
new file mode 100644
index 0000000000..2853394d06
--- /dev/null
+++ b/net/ethtool/eee.c
@@ -0,0 +1,174 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include "netlink.h"
+#include "common.h"
+#include "bitset.h"
+
+#define EEE_MODES_COUNT \
+ (sizeof_field(struct ethtool_eee, supported) * BITS_PER_BYTE)
+
+struct eee_req_info {
+ struct ethnl_req_info base;
+};
+
+struct eee_reply_data {
+ struct ethnl_reply_data base;
+ struct ethtool_eee eee;
+};
+
+#define EEE_REPDATA(__reply_base) \
+ container_of(__reply_base, struct eee_reply_data, base)
+
+const struct nla_policy ethnl_eee_get_policy[] = {
+ [ETHTOOL_A_EEE_HEADER] =
+ NLA_POLICY_NESTED(ethnl_header_policy),
+};
+
+static int eee_prepare_data(const struct ethnl_req_info *req_base,
+ struct ethnl_reply_data *reply_base,
+ const struct genl_info *info)
+{
+ struct eee_reply_data *data = EEE_REPDATA(reply_base);
+ struct net_device *dev = reply_base->dev;
+ int ret;
+
+ if (!dev->ethtool_ops->get_eee)
+ return -EOPNOTSUPP;
+ ret = ethnl_ops_begin(dev);
+ if (ret < 0)
+ return ret;
+ ret = dev->ethtool_ops->get_eee(dev, &data->eee);
+ ethnl_ops_complete(dev);
+
+ return ret;
+}
+
+static int eee_reply_size(const struct ethnl_req_info *req_base,
+ const struct ethnl_reply_data *reply_base)
+{
+ bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS;
+ const struct eee_reply_data *data = EEE_REPDATA(reply_base);
+ const struct ethtool_eee *eee = &data->eee;
+ int len = 0;
+ int ret;
+
+ BUILD_BUG_ON(sizeof(eee->advertised) * BITS_PER_BYTE !=
+ EEE_MODES_COUNT);
+ BUILD_BUG_ON(sizeof(eee->lp_advertised) * BITS_PER_BYTE !=
+ EEE_MODES_COUNT);
+
+ /* MODES_OURS */
+ ret = ethnl_bitset32_size(&eee->advertised, &eee->supported,
+ EEE_MODES_COUNT, link_mode_names, compact);
+ if (ret < 0)
+ return ret;
+ len += ret;
+ /* MODES_PEERS */
+ ret = ethnl_bitset32_size(&eee->lp_advertised, NULL,
+ EEE_MODES_COUNT, link_mode_names, compact);
+ if (ret < 0)
+ return ret;
+ len += ret;
+
+ len += nla_total_size(sizeof(u8)) + /* _EEE_ACTIVE */
+ nla_total_size(sizeof(u8)) + /* _EEE_ENABLED */
+ nla_total_size(sizeof(u8)) + /* _EEE_TX_LPI_ENABLED */
+ nla_total_size(sizeof(u32)); /* _EEE_TX_LPI_TIMER */
+
+ return len;
+}
+
+static int eee_fill_reply(struct sk_buff *skb,
+ const struct ethnl_req_info *req_base,
+ const struct ethnl_reply_data *reply_base)
+{
+ bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS;
+ const struct eee_reply_data *data = EEE_REPDATA(reply_base);
+ const struct ethtool_eee *eee = &data->eee;
+ int ret;
+
+ ret = ethnl_put_bitset32(skb, ETHTOOL_A_EEE_MODES_OURS,
+ &eee->advertised, &eee->supported,
+ EEE_MODES_COUNT, link_mode_names, compact);
+ if (ret < 0)
+ return ret;
+ ret = ethnl_put_bitset32(skb, ETHTOOL_A_EEE_MODES_PEER,
+ &eee->lp_advertised, NULL, EEE_MODES_COUNT,
+ link_mode_names, compact);
+ if (ret < 0)
+ return ret;
+
+ if (nla_put_u8(skb, ETHTOOL_A_EEE_ACTIVE, !!eee->eee_active) ||
+ nla_put_u8(skb, ETHTOOL_A_EEE_ENABLED, !!eee->eee_enabled) ||
+ nla_put_u8(skb, ETHTOOL_A_EEE_TX_LPI_ENABLED,
+ !!eee->tx_lpi_enabled) ||
+ nla_put_u32(skb, ETHTOOL_A_EEE_TX_LPI_TIMER, eee->tx_lpi_timer))
+ return -EMSGSIZE;
+
+ return 0;
+}
+
+/* EEE_SET */
+
+const struct nla_policy ethnl_eee_set_policy[] = {
+ [ETHTOOL_A_EEE_HEADER] =
+ NLA_POLICY_NESTED(ethnl_header_policy),
+ [ETHTOOL_A_EEE_MODES_OURS] = { .type = NLA_NESTED },
+ [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 },
+};
+
+static int
+ethnl_set_eee_validate(struct ethnl_req_info *req_info, struct genl_info *info)
+{
+ const struct ethtool_ops *ops = req_info->dev->ethtool_ops;
+
+ return ops->get_eee && ops->set_eee ? 1 : -EOPNOTSUPP;
+}
+
+static int
+ethnl_set_eee(struct ethnl_req_info *req_info, struct genl_info *info)
+{
+ struct net_device *dev = req_info->dev;
+ struct nlattr **tb = info->attrs;
+ struct ethtool_eee eee = {};
+ bool mod = false;
+ int ret;
+
+ ret = dev->ethtool_ops->get_eee(dev, &eee);
+ if (ret < 0)
+ return ret;
+
+ ret = ethnl_update_bitset32(&eee.advertised, EEE_MODES_COUNT,
+ tb[ETHTOOL_A_EEE_MODES_OURS],
+ link_mode_names, info->extack, &mod);
+ if (ret < 0)
+ return ret;
+ 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_u32(&eee.tx_lpi_timer, tb[ETHTOOL_A_EEE_TX_LPI_TIMER],
+ &mod);
+ if (!mod)
+ return 0;
+
+ ret = dev->ethtool_ops->set_eee(dev, &eee);
+ return ret < 0 ? ret : 1;
+}
+
+const struct ethnl_request_ops ethnl_eee_request_ops = {
+ .request_cmd = ETHTOOL_MSG_EEE_GET,
+ .reply_cmd = ETHTOOL_MSG_EEE_GET_REPLY,
+ .hdr_attr = ETHTOOL_A_EEE_HEADER,
+ .req_info_size = sizeof(struct eee_req_info),
+ .reply_data_size = sizeof(struct eee_reply_data),
+
+ .prepare_data = eee_prepare_data,
+ .reply_size = eee_reply_size,
+ .fill_reply = eee_fill_reply,
+
+ .set_validate = ethnl_set_eee_validate,
+ .set = ethnl_set_eee,
+ .set_ntf_cmd = ETHTOOL_MSG_EEE_NTF,
+};