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Date: Mon, 11 Dec 2017 14:54:41 +0100 (CET)
From: Michal Kubecek <mkubecek@...e.cz>
To: netdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Subject: [RFC PATCH 9/9] ethtool: implement SET_PARAMS message
Sets the information provided by ETHTOOL_SCOALESCE, ETHTOOL_SRINGPARAM,
ETHTOOL_SPAUSEPARAM, ETHTOOL_SCHANNELS, ETHTOOL_SEEE and ETHTOOL_SFECPARAM.
Each of these has corresponding nesting attribute containing attributes for
its settings. This way, userspace can request changes equivalent to one or
more of the legacy requests (and provide only part of the data to update).
Signed-off-by: Michal Kubecek <mkubecek@...e.cz>
---
Documentation/networking/ethtool-netlink.txt | 71 ++++-
net/core/ethtool_netlink.c | 422 +++++++++++++++++++++++++++
2 files changed, 486 insertions(+), 7 deletions(-)
diff --git a/Documentation/networking/ethtool-netlink.txt b/Documentation/networking/ethtool-netlink.txt
index 45ed1801ab50..e96c18f52356 100644
--- a/Documentation/networking/ethtool-netlink.txt
+++ b/Documentation/networking/ethtool-netlink.txt
@@ -112,7 +112,7 @@ List of message types
ETHTOOL_CMD_GET_SETTINGS
ETHTOOL_CMD_SET_SETTINGS
ETHTOOL_CMD_GET_PARAMS
- ETHTOOL_CMD_SET_PARAMS response only (for now)
+ ETHTOOL_CMD_SET_PARAMS
All constants use ETHTOOL_CMD_ prefix followed by "GET", "SET" or "ACT" to
indicate the type.
@@ -316,6 +316,63 @@ the information is nested in it.
- active (value) and configured (selector) FEC encodings
+SET_PARAMS
+----------
+
+SET_PARAMS request modifies the settings retrieved by GET_PARAMS, i.e. it
+replaces ETHTOOL_SCOALESCE, ETHTOOL_SRINGPARAM, ETHTOOL_SPAUSEPARAM,
+ETHTOOL_SCHANNELS, ETHTOOL_SEEE and ETHTOOL_SFECPARAM legacy commands. For
+each of these, relevant data attributes are contained in a corresponding nest
+attribute. Some of the attributes provided by GET_SETPARAMS are read only and
+cannot be set by SET_PARAMS request.
+
+ ETHA_PARAMS_COALESCE (nest) coalescing
+ ETHA_COALESCE_RX_USECS (u32)
+ ETHA_COALESCE_RX_MAXFRM (u32)
+ ETHA_COALESCE_RX_USECS_IRQ (u32)
+ ETHA_COALESCE_RX_MAXFRM_IRQ (u32)
+ ETHA_COALESCE_RX_USECS_LOW (u32)
+ ETHA_COALESCE_RX_MAXFRM_LOW (u32)
+ ETHA_COALESCE_RX_USECS_HIGH (u32)
+ ETHA_COALESCE_RX_MAXFRM_HIGH (u32)
+ ETHA_COALESCE_TX_USECS (u32)
+ ETHA_COALESCE_TX_MAXFRM (u32)
+ ETHA_COALESCE_TX_USECS_IRQ (u32)
+ ETHA_COALESCE_TX_MAXFRM_IRQ (u32)
+ ETHA_COALESCE_TX_USECS_LOW (u32)
+ ETHA_COALESCE_TX_MAXFRM_LOW (u32)
+ ETHA_COALESCE_TX_USECS_HIGH (u32)
+ ETHA_COALESCE_TX_MAXFRM_HIGH (u32)
+ ETHA_COALESCE_PKT_RATE_LOW (u32)
+ ETHA_COALESCE_PKT_RATE_HIGH (u32)
+ ETHA_COALESCE_RX_USE_ADAPTIVE (bool)
+ ETHA_COALESCE_TX_USE_ADAPTIVE (bool)
+ ETHA_COALESCE_RATE_SAMPLE_INTERVAL (u32)
+ ETHA_COALESCE_STATS_BLOCK_USECS (u32)
+ ETHA_PARAMS_RING (nest) ring parameters
+ ETHA_RING_RX_PENDING (u32)
+ ETHA_RING_RX_MINI_PENDING (u32)
+ ETHA_RING_RX_JUMBO_PENDING (u32)
+ ETHA_RING_TX_PENDING (u32)
+ ETHA_PARAMS_PAUSE (nest) pause parameters
+ ETHA_PAUSE_AUTONEG (bool)
+ ETHA_PAUSE_RX (bool)
+ ETHA_PAUSE_TX (bool)
+ ETHA_PARAMS_CHANNELS (nest) channel settings
+ ETHA_CHANNELS_RX_COUNT (u32)
+ ETHA_CHANNELS_TX_COUNT (u32)
+ ETHA_CHANNELS_OTHER_COUNT (u32)
+ ETHA_CHANNELS_COMBINED_COUNT (u32)
+ ETHA_PARAMS_EEE (nest) EEE settings
+ ETHA_EEE_LINK_MODES (bitset)
+ - change modes for which EEE is advertised
+ ETHA_EEE_ENABLED (bool)
+ ETHA_EEE_TX_LPI_ENABLED (bool)
+ ETHA_EEE_TX_LPI_TIMER (u32)
+ ETHA_PARAMS_FEC (nest) FEC parameters
+ ETHA_FEC_MODES (bitfield32)
+ - change configured FEC encodings
+
Request translation
-------------------
@@ -339,11 +396,11 @@ ETHTOOL_GLINK ETHTOOL_CMD_GET_SETTINGS
ETHTOOL_GEEPROM n/a
ETHTOOL_SEEPROM n/a
ETHTOOL_GCOALESCE ETHTOOL_CMD_GET_PARAMS
-ETHTOOL_SCOALESCE n/a
+ETHTOOL_SCOALESCE ETHTOOL_CMD_SET_PARAMS
ETHTOOL_GRINGPARAM ETHTOOL_CMD_GET_PARAMS
-ETHTOOL_SRINGPARAM n/a
+ETHTOOL_SRINGPARAM ETHTOOL_CMD_SET_PARAMS
ETHTOOL_GPAUSEPARAM ETHTOOL_CMD_GET_PARAMS
-ETHTOOL_SPAUSEPARAM n/a
+ETHTOOL_SPAUSEPARAM ETHTOOL_CMD_SET_PARAMS
ETHTOOL_GRXCSUM n/a
ETHTOOL_SRXCSUM n/a
ETHTOOL_GTXCSUM n/a
@@ -385,7 +442,7 @@ ETHTOOL_SRXFHINDIR n/a
ETHTOOL_GFEATURES n/a
ETHTOOL_SFEATURES n/a
ETHTOOL_GCHANNELS ETHTOOL_CMD_GET_PARAMS
-ETHTOOL_SCHANNELS n/a
+ETHTOOL_SCHANNELS ETHTOOL_CMD_SET_PARAMS
ETHTOOL_SET_DUMP n/a
ETHTOOL_GET_DUMP_FLAG n/a
ETHTOOL_GET_DUMP_DATA n/a
@@ -393,7 +450,7 @@ ETHTOOL_GET_TS_INFO n/a
ETHTOOL_GMODULEINFO n/a
ETHTOOL_GMODULEEEPROM n/a
ETHTOOL_GEEE ETHTOOL_CMD_GET_PARAMS
-ETHTOOL_SEEE n/a
+ETHTOOL_SEEE ETHTOOL_CMD_SET_PARAMS
ETHTOOL_GRSSH n/a
ETHTOOL_SRSSH n/a
ETHTOOL_GTUNABLE n/a
@@ -405,5 +462,5 @@ ETHTOOL_SLINKSETTINGS ETHTOOL_CMD_SET_SETTINGS
ETHTOOL_PHY_GTUNABLE n/a
ETHTOOL_PHY_STUNABLE n/a
ETHTOOL_GFECPARAM ETHTOOL_CMD_GET_PARAMS
-ETHTOOL_SFECPARAM n/a
+ETHTOOL_SFECPARAM ETHTOOL_CMD_SET_PARAMS
diff --git a/net/core/ethtool_netlink.c b/net/core/ethtool_netlink.c
index 3fb49427f211..874716baaec3 100644
--- a/net/core/ethtool_netlink.c
+++ b/net/core/ethtool_netlink.c
@@ -1845,6 +1845,422 @@ static int ethnl_get_params(struct sk_buff *skb, struct genl_info *info)
return ret;
}
+/* SET_PARAMS */
+
+static const struct nla_policy params_policy[ETHA_SETTINGS_MAX + 1] = {
+ [ETHA_PARAMS_UNSPEC] = { .type = NLA_UNSPEC },
+ [ETHA_PARAMS_COALESCE] = { .type = NLA_NESTED },
+ [ETHA_PARAMS_RING] = { .type = NLA_NESTED },
+ [ETHA_PARAMS_PAUSE] = { .type = NLA_NESTED },
+ [ETHA_PARAMS_CHANNELS] = { .type = NLA_NESTED },
+ [ETHA_PARAMS_EEE] = { .type = NLA_NESTED },
+ [ETHA_PARAMS_FEC] = { .type = NLA_NESTED },
+};
+
+static const struct nla_policy coalesce_policy[ETHA_COALESCE_MAX + 1] = {
+ [ETHA_COALESCE_UNSPEC] = { .type = NLA_UNSPEC },
+ [ETHA_COALESCE_RX_USECS] = { .type = NLA_U32 },
+ [ETHA_COALESCE_RX_MAXFRM] = { .type = NLA_U32 },
+ [ETHA_COALESCE_RX_USECS_IRQ] = { .type = NLA_U32 },
+ [ETHA_COALESCE_RX_MAXFRM_IRQ] = { .type = NLA_U32 },
+ [ETHA_COALESCE_RX_USECS_LOW] = { .type = NLA_U32 },
+ [ETHA_COALESCE_RX_MAXFRM_LOW] = { .type = NLA_U32 },
+ [ETHA_COALESCE_RX_USECS_HIGH] = { .type = NLA_U32 },
+ [ETHA_COALESCE_RX_MAXFRM_HIGH] = { .type = NLA_U32 },
+ [ETHA_COALESCE_TX_USECS] = { .type = NLA_U32 },
+ [ETHA_COALESCE_TX_MAXFRM] = { .type = NLA_U32 },
+ [ETHA_COALESCE_TX_USECS_IRQ] = { .type = NLA_U32 },
+ [ETHA_COALESCE_TX_MAXFRM_IRQ] = { .type = NLA_U32 },
+ [ETHA_COALESCE_TX_USECS_LOW] = { .type = NLA_U32 },
+ [ETHA_COALESCE_TX_MAXFRM_LOW] = { .type = NLA_U32 },
+ [ETHA_COALESCE_TX_USECS_HIGH] = { .type = NLA_U32 },
+ [ETHA_COALESCE_TX_MAXFRM_HIGH] = { .type = NLA_U32 },
+ [ETHA_COALESCE_PKT_RATE_LOW] = { .type = NLA_U32 },
+ [ETHA_COALESCE_PKT_RATE_HIGH] = { .type = NLA_U32 },
+ [ETHA_COALESCE_RX_USE_ADAPTIVE] = { .type = NLA_U8 },
+ [ETHA_COALESCE_TX_USE_ADAPTIVE] = { .type = NLA_U8 },
+ [ETHA_COALESCE_RATE_SAMPLE_INTERVAL] = { .type = NLA_U32 },
+ [ETHA_COALESCE_STATS_BLOCK_USECS] = { .type = NLA_U32 },
+};
+
+static int update_coalesce(struct genl_info *info, struct net_device *dev,
+ struct nlattr *nest)
+{
+ struct nlattr *tb[ETHA_COALESCE_MAX + 1];
+ struct ethtool_coalesce data = {};
+ bool mod = false;
+ int ret;
+
+ if (!nest)
+ return 0;
+ if (!dev->ethtool_ops->get_coalesce || !dev->ethtool_ops->set_coalesce)
+ return -EOPNOTSUPP;
+ ret = dev->ethtool_ops->get_coalesce(dev, &data);
+ if (ret < 0)
+ return ret;
+
+ ret = nla_parse_nested(tb, ETHA_COALESCE_MAX, nest, coalesce_policy,
+ info->extack);
+ if (ret < 0)
+ return ret;
+
+ if (ethnl_update_u32(&data.rx_coalesce_usecs,
+ tb[ETHA_COALESCE_RX_USECS]))
+ mod = true;
+ if (ethnl_update_u32(&data.rx_max_coalesced_frames,
+ tb[ETHA_COALESCE_RX_MAXFRM]))
+ mod = true;
+ if (ethnl_update_u32(&data.rx_coalesce_usecs_irq,
+ tb[ETHA_COALESCE_RX_USECS_IRQ]))
+ mod = true;
+ if (ethnl_update_u32(&data.rx_max_coalesced_frames_irq,
+ tb[ETHA_COALESCE_RX_MAXFRM_IRQ]))
+ mod = true;
+ if (ethnl_update_u32(&data.rx_coalesce_usecs_low,
+ tb[ETHA_COALESCE_RX_USECS_LOW]))
+ mod = true;
+ if (ethnl_update_u32(&data.rx_max_coalesced_frames_low,
+ tb[ETHA_COALESCE_RX_MAXFRM_LOW]))
+ mod = true;
+ if (ethnl_update_u32(&data.rx_coalesce_usecs_high,
+ tb[ETHA_COALESCE_RX_USECS_HIGH]))
+ mod = true;
+ if (ethnl_update_u32(&data.rx_max_coalesced_frames_high,
+ tb[ETHA_COALESCE_RX_MAXFRM_HIGH]))
+ mod = true;
+ if (ethnl_update_u32(&data.tx_coalesce_usecs,
+ tb[ETHA_COALESCE_TX_USECS]))
+ mod = true;
+ if (ethnl_update_u32(&data.tx_max_coalesced_frames,
+ tb[ETHA_COALESCE_TX_MAXFRM]))
+ mod = true;
+ if (ethnl_update_u32(&data.tx_coalesce_usecs_irq,
+ tb[ETHA_COALESCE_TX_USECS_IRQ]))
+ mod = true;
+ if (ethnl_update_u32(&data.tx_max_coalesced_frames_irq,
+ tb[ETHA_COALESCE_TX_MAXFRM_IRQ]))
+ mod = true;
+ if (ethnl_update_u32(&data.tx_coalesce_usecs_low,
+ tb[ETHA_COALESCE_TX_USECS_LOW]))
+ mod = true;
+ if (ethnl_update_u32(&data.tx_max_coalesced_frames_low,
+ tb[ETHA_COALESCE_TX_MAXFRM_LOW]))
+ mod = true;
+ if (ethnl_update_u32(&data.tx_coalesce_usecs_high,
+ tb[ETHA_COALESCE_TX_USECS_HIGH]))
+ mod = true;
+ if (ethnl_update_u32(&data.tx_max_coalesced_frames_high,
+ tb[ETHA_COALESCE_TX_MAXFRM_HIGH]))
+ mod = true;
+ if (ethnl_update_u32(&data.pkt_rate_low,
+ tb[ETHA_COALESCE_PKT_RATE_LOW]))
+ mod = true;
+ if (ethnl_update_u32(&data.pkt_rate_high,
+ tb[ETHA_COALESCE_PKT_RATE_HIGH]))
+ mod = true;
+ if (ethnl_update_bool32(&data.use_adaptive_rx_coalesce,
+ tb[ETHA_COALESCE_RX_USE_ADAPTIVE]))
+ mod = true;
+ if (ethnl_update_bool32(&data.use_adaptive_tx_coalesce,
+ tb[ETHA_COALESCE_TX_USE_ADAPTIVE]))
+ mod = true;
+ if (ethnl_update_u32(&data.rate_sample_interval,
+ tb[ETHA_COALESCE_RATE_SAMPLE_INTERVAL]))
+ mod = true;
+ if (ethnl_update_u32(&data.stats_block_coalesce_usecs,
+ tb[ETHA_COALESCE_STATS_BLOCK_USECS]))
+ mod = true;
+
+ if (mod)
+ return dev->ethtool_ops->set_coalesce(dev, &data);
+ else
+ return 0;
+}
+
+static const struct nla_policy ring_policy[ETHA_RING_MAX + 1] = {
+ [ETHA_RING_UNSPEC] = { .type = NLA_UNSPEC },
+ [ETHA_RING_RX_MAX_PENDING] = { .type = NLA_U32 },
+ [ETHA_RING_RX_MINI_MAX_PENDING] = { .type = NLA_U32 },
+ [ETHA_RING_RX_JUMBO_MAX_PENDING] = { .type = NLA_U32 },
+ [ETHA_RING_TX_MAX_PENDING] = { .type = NLA_U32 },
+ [ETHA_RING_RX_PENDING] = { .type = NLA_U32 },
+ [ETHA_RING_RX_MINI_PENDING] = { .type = NLA_U32 },
+ [ETHA_RING_RX_JUMBO_PENDING] = { .type = NLA_U32 },
+ [ETHA_RING_TX_PENDING] = { .type = NLA_U32 },
+};
+
+static int update_ring(struct genl_info *info, struct net_device *dev,
+ struct nlattr *nest)
+{
+ struct nlattr *tb[ETHA_RING_MAX + 1];
+ struct ethtool_ringparam data = {};
+ bool mod = false;
+ int ret;
+
+ if (!nest)
+ return 0;
+ if (!dev->ethtool_ops->get_ringparam ||
+ !dev->ethtool_ops->set_ringparam)
+ return -EOPNOTSUPP;
+ dev->ethtool_ops->get_ringparam(dev, &data);
+
+ ret = nla_parse_nested(tb, ETHA_RING_MAX, nest, ring_policy,
+ info->extack);
+ if (ret < 0)
+ return ret;
+ /* read only attributes */
+ if (tb[ETHA_RING_RX_MAX_PENDING] || tb[ETHA_RING_RX_MINI_MAX_PENDING] ||
+ tb[ETHA_RING_RX_JUMBO_MAX_PENDING] ||
+ tb[ETHA_RING_TX_MAX_PENDING]) {
+ GENL_SET_ERR_MSG(info, "attempt to set a read only attribute");
+ return -EINVAL;
+ }
+
+ if (ethnl_update_u32(&data.rx_pending, tb[ETHA_RING_RX_PENDING]))
+ mod = true;
+ if (ethnl_update_u32(&data.rx_mini_pending,
+ tb[ETHA_RING_RX_MINI_PENDING]))
+ mod = true;
+ if (ethnl_update_u32(&data.rx_jumbo_pending,
+ tb[ETHA_RING_RX_JUMBO_PENDING]))
+ mod = true;
+ if (ethnl_update_u32(&data.tx_pending, tb[ETHA_RING_TX_PENDING]))
+ mod = true;
+
+ if (mod)
+ return dev->ethtool_ops->set_ringparam(dev, &data);
+ else
+ return 0;
+}
+
+static const struct nla_policy pause_policy[ETHA_PAUSE_MAX + 1] = {
+ [ETHA_PAUSE_UNSPEC] = { .type = NLA_UNSPEC },
+ [ETHA_PAUSE_AUTONEG] = { .type = NLA_U8 },
+ [ETHA_PAUSE_RX] = { .type = NLA_U8 },
+ [ETHA_PAUSE_TX] = { .type = NLA_U8 },
+};
+
+static int update_pause(struct genl_info *info, struct net_device *dev,
+ struct nlattr *nest)
+{
+ struct nlattr *tb[ETHA_RING_MAX + 1];
+ struct ethtool_pauseparam data = {};
+ bool mod = false;
+ int ret;
+
+ if (!nest)
+ return 0;
+ if (!dev->ethtool_ops->get_pauseparam ||
+ !dev->ethtool_ops->set_pauseparam)
+ return -EOPNOTSUPP;
+ dev->ethtool_ops->get_pauseparam(dev, &data);
+
+ ret = nla_parse_nested(tb, ETHA_PAUSE_MAX, nest, pause_policy,
+ info->extack);
+ if (ret < 0)
+ return ret;
+
+ if (ethnl_update_u32(&data.autoneg, tb[ETHA_PAUSE_AUTONEG]))
+ mod = true;
+ if (ethnl_update_u32(&data.rx_pause, tb[ETHA_PAUSE_RX]))
+ mod = true;
+ if (ethnl_update_u32(&data.tx_pause, tb[ETHA_PAUSE_TX]))
+ mod = true;
+
+ if (mod)
+ return dev->ethtool_ops->set_pauseparam(dev, &data);
+ else
+ return 0;
+}
+
+static const struct nla_policy channels_policy[ETHA_CHANNELS_MAX + 1] = {
+ [ETHA_CHANNELS_UNSPEC] = { .type = NLA_UNSPEC },
+ [ETHA_CHANNELS_MAX_RX] = { .type = NLA_U32 },
+ [ETHA_CHANNELS_MAX_TX] = { .type = NLA_U32 },
+ [ETHA_CHANNELS_MAX_OTHER] = { .type = NLA_U32 },
+ [ETHA_CHANNELS_MAX_COMBINED] = { .type = NLA_U32 },
+ [ETHA_CHANNELS_RX_COUNT] = { .type = NLA_U32 },
+ [ETHA_CHANNELS_TX_COUNT] = { .type = NLA_U32 },
+ [ETHA_CHANNELS_OTHER_COUNT] = { .type = NLA_U32 },
+ [ETHA_CHANNELS_COMBINED_COUNT] = { .type = NLA_U32 },
+};
+
+static int update_channels(struct genl_info *info, struct net_device *dev,
+ struct nlattr *nest)
+{
+ struct nlattr *tb[ETHA_CHANNELS_MAX + 1];
+ struct ethtool_channels data = {};
+ bool mod = false;
+ int ret;
+
+ if (!nest)
+ return 0;
+ if (!dev->ethtool_ops->get_channels ||
+ !dev->ethtool_ops->set_channels)
+ return -EOPNOTSUPP;
+ dev->ethtool_ops->get_channels(dev, &data);
+
+ ret = nla_parse_nested(tb, ETHA_CHANNELS_MAX, nest, channels_policy,
+ info->extack);
+ if (ret < 0)
+ return ret;
+ /* read only attributes */
+ if (tb[ETHA_CHANNELS_MAX_RX] || tb[ETHA_CHANNELS_MAX_TX] ||
+ tb[ETHA_CHANNELS_MAX_OTHER] || tb[ETHA_CHANNELS_MAX_COMBINED]) {
+ GENL_SET_ERR_MSG(info, "attempt to set a read only attribute");
+ return -EINVAL;
+ }
+
+ if (ethnl_update_u32(&data.rx_count, tb[ETHA_CHANNELS_RX_COUNT]))
+ mod = true;
+ if (ethnl_update_u32(&data.tx_count, tb[ETHA_CHANNELS_TX_COUNT]))
+ mod = true;
+ if (ethnl_update_u32(&data.other_count, tb[ETHA_CHANNELS_OTHER_COUNT]))
+ mod = true;
+ if (ethnl_update_u32(&data.combined_count,
+ tb[ETHA_CHANNELS_COMBINED_COUNT]))
+ mod = true;
+
+ if (mod)
+ return dev->ethtool_ops->set_channels(dev, &data);
+ else
+ return 0;
+}
+
+static const struct nla_policy eee_policy[ETHA_EEE_MAX + 1] = {
+ [ETHA_EEE_UNSPEC] = { .type = NLA_UNSPEC },
+ [ETHA_EEE_LINK_MODES] = { .type = NLA_NESTED },
+ [ETHA_EEE_PEER_MODES] = { .type = NLA_NESTED },
+ [ETHA_EEE_ACTIVE] = { .type = NLA_U8 },
+ [ETHA_EEE_ENABLED] = { .type = NLA_U8 },
+ [ETHA_EEE_TX_LPI_ENABLED] = { .type = NLA_U8 },
+ [ETHA_EEE_TX_LPI_TIMER] = { .type = NLA_U32 },
+};
+
+static int update_eee(struct genl_info *info, struct net_device *dev,
+ struct nlattr *nest)
+{
+ struct nlattr *tb[ETHA_EEE_MAX + 1];
+ struct ethtool_eee data = {};
+ bool mod = false;
+ int ret;
+
+ if (!nest)
+ return 0;
+ if (!dev->ethtool_ops->get_eee ||
+ !dev->ethtool_ops->set_eee)
+ return -EOPNOTSUPP;
+ ret = dev->ethtool_ops->get_eee(dev, &data);
+ if (ret < 0)
+ return ret;
+
+ ret = nla_parse_nested(tb, ETHA_EEE_MAX, nest, eee_policy,
+ info->extack);
+ if (ret < 0)
+ return ret;
+ /* read only attributes */
+ if (tb[ETHA_EEE_PEER_MODES] || tb[ETHA_EEE_ACTIVE]) {
+ GENL_SET_ERR_MSG(info, "attempt to set a read only attribute");
+ return -EINVAL;
+ }
+
+ if (ethnl_update_bitset32(&data.advertised, 32, tb[ETHA_EEE_LINK_MODES],
+ &ret, link_mode_names, info))
+ mod = true;
+ if (ret < 0)
+ return ret;
+ if (ethnl_update_bool32(&data.eee_enabled, tb[ETHA_EEE_ENABLED]))
+ mod = true;
+ if (ethnl_update_bool32(&data.tx_lpi_enabled,
+ tb[ETHA_EEE_TX_LPI_ENABLED]))
+ mod = true;
+ if (ethnl_update_u32(&data.tx_lpi_timer, tb[ETHA_EEE_TX_LPI_TIMER]))
+ mod = true;
+
+ if (mod)
+ return dev->ethtool_ops->set_eee(dev, &data);
+ else
+ return 0;
+}
+
+static const struct nla_policy fec_policy[ETHA_FEC_MAX + 1] = {
+ [ETHA_FEC_UNSPEC] = { .type = NLA_UNSPEC },
+ [ETHA_FEC_MODES] = { .type = NLA_U32 },
+};
+
+static int update_fec(struct genl_info *info, struct net_device *dev,
+ struct nlattr *nest)
+{
+ struct nlattr *tb[ETHA_FEC_MAX + 1];
+ struct ethtool_fecparam data = {};
+ bool mod = false;
+ int ret;
+
+ if (!nest)
+ return 0;
+ if (!dev->ethtool_ops->get_fecparam ||
+ !dev->ethtool_ops->set_fecparam)
+ return -EOPNOTSUPP;
+ ret = dev->ethtool_ops->get_fecparam(dev, &data);
+ if (ret < 0)
+ return ret;
+
+ ret = nla_parse_nested(tb, ETHA_FEC_MAX, nest, fec_policy,
+ info->extack);
+ if (ret < 0)
+ return ret;
+
+ if (ethnl_update_bitfield32(&data.fec, tb[ETHA_FEC_MODES]))
+ mod = true;
+
+ if (mod)
+ return dev->ethtool_ops->set_fecparam(dev, &data);
+ else
+ return 0;
+}
+
+static int ethnl_set_params(struct sk_buff *skb, struct genl_info *info)
+{
+ struct nlattr *tb[ETHA_PARAMS_MAX + 1];
+ struct ethnlmsghdr *ehdr;
+ struct net_device *dev;
+ int ret;
+
+ ehdr = info->userhdr;
+ dev = ethnl_dev_get(info);
+ if (IS_ERR(dev))
+ return PTR_ERR(dev);
+
+ ret = genlmsg_parse(info->nlhdr, ðtool_genl_family, tb,
+ ETHA_PARAMS_MAX, params_policy, info->extack);
+ if (ret < 0)
+ goto err_putdev;
+
+ ret = update_coalesce(info, dev, tb[ETHA_PARAMS_COALESCE]);
+ if (ret < 0)
+ goto err_putdev;
+ ret = update_ring(info, dev, tb[ETHA_PARAMS_RING]);
+ if (ret < 0)
+ goto err_putdev;
+ ret = update_pause(info, dev, tb[ETHA_PARAMS_PAUSE]);
+ if (ret < 0)
+ goto err_putdev;
+ ret = update_channels(info, dev, tb[ETHA_PARAMS_CHANNELS]);
+ if (ret < 0)
+ goto err_putdev;
+ ret = update_eee(info, dev, tb[ETHA_PARAMS_EEE]);
+ if (ret < 0)
+ goto err_putdev;
+ ret = update_fec(info, dev, tb[ETHA_PARAMS_FEC]);
+ if (ret < 0)
+ goto err_putdev;
+
+ ret = 0;
+err_putdev:
+ dev_put(dev);
+ return ret;
+}
+
/* genetlink paperwork */
static const struct genl_ops ethtool_genl_ops[] = {
@@ -1866,6 +2282,12 @@ static const struct genl_ops ethtool_genl_ops[] = {
.cmd = ETHTOOL_CMD_GET_PARAMS,
.doit = ethnl_get_params,
},
+ {
+ .cmd = ETHTOOL_CMD_SET_PARAMS,
+ .flags = GENL_UNS_ADMIN_PERM,
+ .policy = params_policy,
+ .doit = ethnl_set_params,
+ },
};
static struct genl_family ethtool_genl_family = {
--
2.15.1
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