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

// SPDX-License-Identifier: GPL-2.0-only

#include "netlink.h"
#include "common.h"
#include "bitset.h"

struct eee_req_info {
	struct ethnl_req_info		base;
};

struct eee_reply_data {
	struct ethnl_reply_data		base;
	struct ethtool_keee		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;
	struct ethtool_keee *eee = &data->eee;
	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, 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_keee *eee = &data->eee;
	int len = 0;
	int ret;

	/* MODES_OURS */
	ret = ethnl_bitset_size(eee->advertised, eee->supported,
				__ETHTOOL_LINK_MODE_MASK_NBITS,
				link_mode_names, compact);
	if (ret < 0)
		return ret;
	len += ret;
	/* MODES_PEERS */
	ret = ethnl_bitset_size(eee->lp_advertised, NULL,
				__ETHTOOL_LINK_MODE_MASK_NBITS,
				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_keee *eee = &data->eee;
	int ret;

	ret = ethnl_put_bitset(skb, ETHTOOL_A_EEE_MODES_OURS,
			       eee->advertised, eee->supported,
			       __ETHTOOL_LINK_MODE_MASK_NBITS,
			       link_mode_names, compact);
	if (ret < 0)
		return ret;
	ret = ethnl_put_bitset(skb, ETHTOOL_A_EEE_MODES_PEER,
			       eee->lp_advertised, NULL,
			       __ETHTOOL_LINK_MODE_MASK_NBITS,
			       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_keee eee = {};
	bool mod = false;
	int ret;

	ret = dev->ethtool_ops->get_eee(dev, &eee);
	if (ret < 0)
		return ret;

	ret = ethnl_update_bitset(eee.advertised,
				  __ETHTOOL_LINK_MODE_MASK_NBITS,
				  tb[ETHTOOL_A_EEE_MODES_OURS],
				  link_mode_names, info->extack, &mod);
	if (ret < 0)
		return ret;
	ethnl_update_bool(&eee.eee_enabled, tb[ETHTOOL_A_EEE_ENABLED], &mod);
	ethnl_update_bool(&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,
};
Commit	Line	Data
b7eeefe7 MK	1	// SPDX-License-Identifier: GPL-2.0-only
	2
	3	#include "netlink.h"
	4	#include "common.h"
	5	#include "bitset.h"
	6
b7eeefe7 MK	7	struct eee_req_info {
	8	struct ethnl_req_info base;
	9	};
	10
	11	struct eee_reply_data {
	12	struct ethnl_reply_data base;
d80a5233	13	struct ethtool_keee eee;
b7eeefe7 MK	14	};
	15
	16	#define EEE_REPDATA(__reply_base) \
	17	container_of(__reply_base, struct eee_reply_data, base)
	18
ff419afa	19	const struct nla_policy ethnl_eee_get_policy[] = {
329d9c33 JK	20	[ETHTOOL_A_EEE_HEADER] =
329d9c33 JK	21	NLA_POLICY_NESTED(ethnl_header_policy),
b7eeefe7 MK	22	};
	23
	24	static int eee_prepare_data(const struct ethnl_req_info *req_base,
	25	struct ethnl_reply_data *reply_base,
f946270d	26	const struct genl_info *info)
b7eeefe7 MK	27	{
	28	struct eee_reply_data *data = EEE_REPDATA(reply_base);
	29	struct net_device *dev = reply_base->dev;
1f069de6	30	struct ethtool_keee *eee = &data->eee;
b7eeefe7 MK	31	int ret;
	32
	33	if (!dev->ethtool_ops->get_eee)
	34	return -EOPNOTSUPP;
	35	ret = ethnl_ops_begin(dev);
	36	if (ret < 0)
	37	return ret;
1f069de6	38	ret = dev->ethtool_ops->get_eee(dev, eee);
b7eeefe7 MK	39	ethnl_ops_complete(dev);
	40
	41	return ret;
	42	}
	43
	44	static int eee_reply_size(const struct ethnl_req_info *req_base,
	45	const struct ethnl_reply_data *reply_base)
	46	{
	47	bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS;
	48	const struct eee_reply_data *data = EEE_REPDATA(reply_base);
d80a5233	49	const struct ethtool_keee *eee = &data->eee;
b7eeefe7 MK	50	int len = 0;
	51	int ret;
	52
b7eeefe7	53	/* MODES_OURS */
1f069de6 HK	54	ret = ethnl_bitset_size(eee->advertised, eee->supported,
	55	__ETHTOOL_LINK_MODE_MASK_NBITS,
	56	link_mode_names, compact);
b7eeefe7 MK	57	if (ret < 0)
	58	return ret;
	59	len += ret;
	60	/* MODES_PEERS */
1f069de6 HK	61	ret = ethnl_bitset_size(eee->lp_advertised, NULL,
	62	__ETHTOOL_LINK_MODE_MASK_NBITS,
	63	link_mode_names, compact);
b7eeefe7 MK	64	if (ret < 0)
	65	return ret;
	66	len += ret;
	67
	68	len += nla_total_size(sizeof(u8)) + /* _EEE_ACTIVE */
	69	nla_total_size(sizeof(u8)) + /* _EEE_ENABLED */
	70	nla_total_size(sizeof(u8)) + /* _EEE_TX_LPI_ENABLED */
	71	nla_total_size(sizeof(u32)); /* _EEE_TX_LPI_TIMER */
	72
	73	return len;
	74	}
	75
	76	static int eee_fill_reply(struct sk_buff *skb,
	77	const struct ethnl_req_info *req_base,
	78	const struct ethnl_reply_data *reply_base)
	79	{
	80	bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS;
	81	const struct eee_reply_data *data = EEE_REPDATA(reply_base);
d80a5233	82	const struct ethtool_keee *eee = &data->eee;
b7eeefe7 MK	83	int ret;
b7eeefe7 MK	84
1f069de6 HK	85	ret = ethnl_put_bitset(skb, ETHTOOL_A_EEE_MODES_OURS,
	86	eee->advertised, eee->supported,
	87	__ETHTOOL_LINK_MODE_MASK_NBITS,
	88	link_mode_names, compact);
b7eeefe7 MK	89	if (ret < 0)
b7eeefe7 MK	90	return ret;
1f069de6 HK	91	ret = ethnl_put_bitset(skb, ETHTOOL_A_EEE_MODES_PEER,
	92	eee->lp_advertised, NULL,
	93	__ETHTOOL_LINK_MODE_MASK_NBITS,
	94	link_mode_names, compact);
b7eeefe7 MK	95	if (ret < 0)
	96	return ret;
	97
285cc15c HK	98	if (nla_put_u8(skb, ETHTOOL_A_EEE_ACTIVE, eee->eee_active) \|\|
285cc15c HK	99	nla_put_u8(skb, ETHTOOL_A_EEE_ENABLED, eee->eee_enabled) \|\|
b7eeefe7	100	nla_put_u8(skb, ETHTOOL_A_EEE_TX_LPI_ENABLED,
285cc15c	101	eee->tx_lpi_enabled) \|\|
b7eeefe7 MK	102	nla_put_u32(skb, ETHTOOL_A_EEE_TX_LPI_TIMER, eee->tx_lpi_timer))
	103	return -EMSGSIZE;
	104
	105	return 0;
	106	}
	107
fd77be7b MK	108	/* EEE_SET */
fd77be7b MK	109
ff419afa	110	const struct nla_policy ethnl_eee_set_policy[] = {
329d9c33 JK	111	[ETHTOOL_A_EEE_HEADER] =
329d9c33 JK	112	NLA_POLICY_NESTED(ethnl_header_policy),
fd77be7b	113	[ETHTOOL_A_EEE_MODES_OURS] = { .type = NLA_NESTED },
fd77be7b MK	114	[ETHTOOL_A_EEE_ENABLED] = { .type = NLA_U8 },
	115	[ETHTOOL_A_EEE_TX_LPI_ENABLED] = { .type = NLA_U8 },
	116	[ETHTOOL_A_EEE_TX_LPI_TIMER] = { .type = NLA_U32 },
	117	};
	118
04007961 JK	119	static int
04007961 JK	120	ethnl_set_eee_validate(struct ethnl_req_info req_info, struct genl_info info)
fd77be7b	121	{
04007961 JK	122	const struct ethtool_ops *ops = req_info->dev->ethtool_ops;
	123
	124	return ops->get_eee && ops->set_eee ? 1 : -EOPNOTSUPP;
	125	}
	126
	127	static int
	128	ethnl_set_eee(struct ethnl_req_info req_info, struct genl_info info)
	129	{
	130	struct net_device *dev = req_info->dev;
5028588b	131	struct nlattr **tb = info->attrs;
d80a5233	132	struct ethtool_keee eee = {};
fd77be7b MK	133	bool mod = false;
	134	int ret;
	135
04007961	136	ret = dev->ethtool_ops->get_eee(dev, &eee);
fd77be7b MK	137	if (ret < 0)
fd77be7b MK	138	return ret;
fd77be7b	139
292fac46 AL	140	ret = ethnl_update_bitset(eee.advertised,
	141	__ETHTOOL_LINK_MODE_MASK_NBITS,
	142	tb[ETHTOOL_A_EEE_MODES_OURS],
	143	link_mode_names, info->extack, &mod);
fd77be7b	144	if (ret < 0)
04007961	145	return ret;
285cc15c HK	146	ethnl_update_bool(&eee.eee_enabled, tb[ETHTOOL_A_EEE_ENABLED], &mod);
	147	ethnl_update_bool(&eee.tx_lpi_enabled, tb[ETHTOOL_A_EEE_TX_LPI_ENABLED],
	148	&mod);
63cf3238 WVK	149	ethnl_update_u32(&eee.tx_lpi_timer, tb[ETHTOOL_A_EEE_TX_LPI_TIMER],
63cf3238 WVK	150	&mod);
fd77be7b	151	if (!mod)
04007961	152	return 0;
fd77be7b MK	153
fd77be7b MK	154	ret = dev->ethtool_ops->set_eee(dev, &eee);
04007961	155	return ret < 0 ? ret : 1;
fd77be7b	156	}
04007961 JK	157
	158	const struct ethnl_request_ops ethnl_eee_request_ops = {
	159	.request_cmd = ETHTOOL_MSG_EEE_GET,
	160	.reply_cmd = ETHTOOL_MSG_EEE_GET_REPLY,
	161	.hdr_attr = ETHTOOL_A_EEE_HEADER,
	162	.req_info_size = sizeof(struct eee_req_info),
	163	.reply_data_size = sizeof(struct eee_reply_data),
	164
	165	.prepare_data = eee_prepare_data,
	166	.reply_size = eee_reply_size,
	167	.fill_reply = eee_fill_reply,
	168
	169	.set_validate = ethnl_set_eee_validate,
	170	.set = ethnl_set_eee,
	171	.set_ntf_cmd = ETHTOOL_MSG_EEE_NTF,
	172	};