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

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

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

struct rings_req_info {
	struct ethnl_req_info		base;
};

struct rings_reply_data {
	struct ethnl_reply_data		base;
	struct ethtool_ringparam	ringparam;
	struct kernel_ethtool_ringparam	kernel_ringparam;
};

#define RINGS_REPDATA(__reply_base) \
	container_of(__reply_base, struct rings_reply_data, base)

const struct nla_policy ethnl_rings_get_policy[] = {
	[ETHTOOL_A_RINGS_HEADER]		=
		NLA_POLICY_NESTED(ethnl_header_policy),
};

static int rings_prepare_data(const struct ethnl_req_info *req_base,
			      struct ethnl_reply_data *reply_base,
			      struct genl_info *info)
{
	struct rings_reply_data *data = RINGS_REPDATA(reply_base);
	struct netlink_ext_ack *extack = info ? info->extack : NULL;
	struct net_device *dev = reply_base->dev;
	int ret;

	if (!dev->ethtool_ops->get_ringparam)
		return -EOPNOTSUPP;
	ret = ethnl_ops_begin(dev);
	if (ret < 0)
		return ret;
	dev->ethtool_ops->get_ringparam(dev, &data->ringparam,
					&data->kernel_ringparam, extack);
	ethnl_ops_complete(dev);

	return 0;
}

static int rings_reply_size(const struct ethnl_req_info *req_base,
			    const struct ethnl_reply_data *reply_base)
{
	return nla_total_size(sizeof(u32)) +	/* _RINGS_RX_MAX */
	       nla_total_size(sizeof(u32)) +	/* _RINGS_RX_MINI_MAX */
	       nla_total_size(sizeof(u32)) +	/* _RINGS_RX_JUMBO_MAX */
	       nla_total_size(sizeof(u32)) +	/* _RINGS_TX_MAX */
	       nla_total_size(sizeof(u32)) +	/* _RINGS_RX */
	       nla_total_size(sizeof(u32)) +	/* _RINGS_RX_MINI */
	       nla_total_size(sizeof(u32)) +	/* _RINGS_RX_JUMBO */
	       nla_total_size(sizeof(u32)) +	/* _RINGS_TX */
	       nla_total_size(sizeof(u32)) +	/* _RINGS_RX_BUF_LEN */
	       nla_total_size(sizeof(u8))  +	/* _RINGS_TCP_DATA_SPLIT */
	       nla_total_size(sizeof(u32)  +	/* _RINGS_CQE_SIZE */
	       nla_total_size(sizeof(u8))  +	/* _RINGS_TX_PUSH */
	       nla_total_size(sizeof(u8)));	/* _RINGS_RX_PUSH */
}

static int rings_fill_reply(struct sk_buff *skb,
			    const struct ethnl_req_info *req_base,
			    const struct ethnl_reply_data *reply_base)
{
	const struct rings_reply_data *data = RINGS_REPDATA(reply_base);
	const struct kernel_ethtool_ringparam *kr = &data->kernel_ringparam;
	const struct ethtool_ringparam *ringparam = &data->ringparam;

	WARN_ON(kr->tcp_data_split > ETHTOOL_TCP_DATA_SPLIT_ENABLED);

	if ((ringparam->rx_max_pending &&
	     (nla_put_u32(skb, ETHTOOL_A_RINGS_RX_MAX,
			  ringparam->rx_max_pending) ||
	      nla_put_u32(skb, ETHTOOL_A_RINGS_RX,
			  ringparam->rx_pending))) ||
	    (ringparam->rx_mini_max_pending &&
	     (nla_put_u32(skb, ETHTOOL_A_RINGS_RX_MINI_MAX,
			  ringparam->rx_mini_max_pending) ||
	      nla_put_u32(skb, ETHTOOL_A_RINGS_RX_MINI,
			  ringparam->rx_mini_pending))) ||
	    (ringparam->rx_jumbo_max_pending &&
	     (nla_put_u32(skb, ETHTOOL_A_RINGS_RX_JUMBO_MAX,
			  ringparam->rx_jumbo_max_pending) ||
	      nla_put_u32(skb, ETHTOOL_A_RINGS_RX_JUMBO,
			  ringparam->rx_jumbo_pending))) ||
	    (ringparam->tx_max_pending &&
	     (nla_put_u32(skb, ETHTOOL_A_RINGS_TX_MAX,
			  ringparam->tx_max_pending) ||
	      nla_put_u32(skb, ETHTOOL_A_RINGS_TX,
			  ringparam->tx_pending)))  ||
	    (kr->rx_buf_len &&
	     (nla_put_u32(skb, ETHTOOL_A_RINGS_RX_BUF_LEN, kr->rx_buf_len))) ||
	    (kr->tcp_data_split &&
	     (nla_put_u8(skb, ETHTOOL_A_RINGS_TCP_DATA_SPLIT,
			 kr->tcp_data_split))) ||
	    (kr->cqe_size &&
	     (nla_put_u32(skb, ETHTOOL_A_RINGS_CQE_SIZE, kr->cqe_size))) ||
	    nla_put_u8(skb, ETHTOOL_A_RINGS_TX_PUSH, !!kr->tx_push) ||
	    nla_put_u8(skb, ETHTOOL_A_RINGS_RX_PUSH, !!kr->rx_push))
		return -EMSGSIZE;

	return 0;
}

/* RINGS_SET */

const struct nla_policy ethnl_rings_set_policy[] = {
	[ETHTOOL_A_RINGS_HEADER]		=
		NLA_POLICY_NESTED(ethnl_header_policy),
	[ETHTOOL_A_RINGS_RX]			= { .type = NLA_U32 },
	[ETHTOOL_A_RINGS_RX_MINI]		= { .type = NLA_U32 },
	[ETHTOOL_A_RINGS_RX_JUMBO]		= { .type = NLA_U32 },
	[ETHTOOL_A_RINGS_TX]			= { .type = NLA_U32 },
	[ETHTOOL_A_RINGS_RX_BUF_LEN]            = NLA_POLICY_MIN(NLA_U32, 1),
	[ETHTOOL_A_RINGS_CQE_SIZE]		= NLA_POLICY_MIN(NLA_U32, 1),
	[ETHTOOL_A_RINGS_TX_PUSH]		= NLA_POLICY_MAX(NLA_U8, 1),
	[ETHTOOL_A_RINGS_RX_PUSH]		= NLA_POLICY_MAX(NLA_U8, 1),
};

static int
ethnl_set_rings_validate(struct ethnl_req_info *req_info,
			 struct genl_info *info)
{
	const struct ethtool_ops *ops = req_info->dev->ethtool_ops;
	struct nlattr **tb = info->attrs;

	if (tb[ETHTOOL_A_RINGS_RX_BUF_LEN] &&
	    !(ops->supported_ring_params & ETHTOOL_RING_USE_RX_BUF_LEN)) {
		NL_SET_ERR_MSG_ATTR(info->extack,
				    tb[ETHTOOL_A_RINGS_RX_BUF_LEN],
				    "setting rx buf len not supported");
		return -EOPNOTSUPP;
	}

	if (tb[ETHTOOL_A_RINGS_CQE_SIZE] &&
	    !(ops->supported_ring_params & ETHTOOL_RING_USE_CQE_SIZE)) {
		NL_SET_ERR_MSG_ATTR(info->extack,
				    tb[ETHTOOL_A_RINGS_CQE_SIZE],
				    "setting cqe size not supported");
		return -EOPNOTSUPP;
	}

	if (tb[ETHTOOL_A_RINGS_TX_PUSH] &&
	    !(ops->supported_ring_params & ETHTOOL_RING_USE_TX_PUSH)) {
		NL_SET_ERR_MSG_ATTR(info->extack,
				    tb[ETHTOOL_A_RINGS_TX_PUSH],
				    "setting tx push not supported");
		return -EOPNOTSUPP;
	}

	if (tb[ETHTOOL_A_RINGS_RX_PUSH] &&
	    !(ops->supported_ring_params & ETHTOOL_RING_USE_RX_PUSH)) {
		NL_SET_ERR_MSG_ATTR(info->extack,
				    tb[ETHTOOL_A_RINGS_RX_PUSH],
				    "setting rx push not supported");
		return -EOPNOTSUPP;
	}

	return ops->get_ringparam && ops->set_ringparam ? 1 : -EOPNOTSUPP;
}

static int
ethnl_set_rings(struct ethnl_req_info *req_info, struct genl_info *info)
{
	struct kernel_ethtool_ringparam kernel_ringparam = {};
	struct ethtool_ringparam ringparam = {};
	struct net_device *dev = req_info->dev;
	struct nlattr **tb = info->attrs;
	const struct nlattr *err_attr;
	bool mod = false;
	int ret;

	dev->ethtool_ops->get_ringparam(dev, &ringparam,
					&kernel_ringparam, info->extack);

	ethnl_update_u32(&ringparam.rx_pending, tb[ETHTOOL_A_RINGS_RX], &mod);
	ethnl_update_u32(&ringparam.rx_mini_pending,
			 tb[ETHTOOL_A_RINGS_RX_MINI], &mod);
	ethnl_update_u32(&ringparam.rx_jumbo_pending,
			 tb[ETHTOOL_A_RINGS_RX_JUMBO], &mod);
	ethnl_update_u32(&ringparam.tx_pending, tb[ETHTOOL_A_RINGS_TX], &mod);
	ethnl_update_u32(&kernel_ringparam.rx_buf_len,
			 tb[ETHTOOL_A_RINGS_RX_BUF_LEN], &mod);
	ethnl_update_u32(&kernel_ringparam.cqe_size,
			 tb[ETHTOOL_A_RINGS_CQE_SIZE], &mod);
	ethnl_update_u8(&kernel_ringparam.tx_push,
			tb[ETHTOOL_A_RINGS_TX_PUSH], &mod);
	ethnl_update_u8(&kernel_ringparam.rx_push,
			tb[ETHTOOL_A_RINGS_RX_PUSH], &mod);
	if (!mod)
		return 0;

	/* ensure new ring parameters are within limits */
	if (ringparam.rx_pending > ringparam.rx_max_pending)
		err_attr = tb[ETHTOOL_A_RINGS_RX];
	else if (ringparam.rx_mini_pending > ringparam.rx_mini_max_pending)
		err_attr = tb[ETHTOOL_A_RINGS_RX_MINI];
	else if (ringparam.rx_jumbo_pending > ringparam.rx_jumbo_max_pending)
		err_attr = tb[ETHTOOL_A_RINGS_RX_JUMBO];
	else if (ringparam.tx_pending > ringparam.tx_max_pending)
		err_attr = tb[ETHTOOL_A_RINGS_TX];
	else
		err_attr = NULL;
	if (err_attr) {
		NL_SET_ERR_MSG_ATTR(info->extack, err_attr,
				    "requested ring size exceeds maximum");
		return -EINVAL;
	}

	ret = dev->ethtool_ops->set_ringparam(dev, &ringparam,
					      &kernel_ringparam, info->extack);
	return ret < 0 ? ret : 1;
}

const struct ethnl_request_ops ethnl_rings_request_ops = {
	.request_cmd		= ETHTOOL_MSG_RINGS_GET,
	.reply_cmd		= ETHTOOL_MSG_RINGS_GET_REPLY,
	.hdr_attr		= ETHTOOL_A_RINGS_HEADER,
	.req_info_size		= sizeof(struct rings_req_info),
	.reply_data_size	= sizeof(struct rings_reply_data),

	.prepare_data		= rings_prepare_data,
	.reply_size		= rings_reply_size,
	.fill_reply		= rings_fill_reply,

	.set_validate		= ethnl_set_rings_validate,
	.set			= ethnl_set_rings,
	.set_ntf_cmd		= ETHTOOL_MSG_RINGS_NTF,
};
Commit	Line	Data
e4a1717b MK	1	// SPDX-License-Identifier: GPL-2.0-only
	2
	3	#include "netlink.h"
	4	#include "common.h"
	5
	6	struct rings_req_info {
	7	struct ethnl_req_info base;
	8	};
	9
	10	struct rings_reply_data {
	11	struct ethnl_reply_data base;
	12	struct ethtool_ringparam ringparam;
0b70c256	13	struct kernel_ethtool_ringparam kernel_ringparam;
e4a1717b MK	14	};
	15
	16	#define RINGS_REPDATA(__reply_base) \
	17	container_of(__reply_base, struct rings_reply_data, base)
	18
ff419afa	19	const struct nla_policy ethnl_rings_get_policy[] = {
329d9c33 JK	20	[ETHTOOL_A_RINGS_HEADER] =
329d9c33 JK	21	NLA_POLICY_NESTED(ethnl_header_policy),
e4a1717b MK	22	};
	23
	24	static int rings_prepare_data(const struct ethnl_req_info *req_base,
	25	struct ethnl_reply_data *reply_base,
	26	struct genl_info *info)
	27	{
	28	struct rings_reply_data *data = RINGS_REPDATA(reply_base);
74624944	29	struct netlink_ext_ack *extack = info ? info->extack : NULL;
e4a1717b MK	30	struct net_device *dev = reply_base->dev;
	31	int ret;
	32
	33	if (!dev->ethtool_ops->get_ringparam)
	34	return -EOPNOTSUPP;
	35	ret = ethnl_ops_begin(dev);
	36	if (ret < 0)
	37	return ret;
74624944 HC	38	dev->ethtool_ops->get_ringparam(dev, &data->ringparam,
74624944 HC	39	&data->kernel_ringparam, extack);
e4a1717b MK	40	ethnl_ops_complete(dev);
	41
	42	return 0;
	43	}
	44
	45	static int rings_reply_size(const struct ethnl_req_info *req_base,
	46	const struct ethnl_reply_data *reply_base)
	47	{
	48	return nla_total_size(sizeof(u32)) + /* _RINGS_RX_MAX */
	49	nla_total_size(sizeof(u32)) + /* _RINGS_RX_MINI_MAX */
	50	nla_total_size(sizeof(u32)) + /* _RINGS_RX_JUMBO_MAX */
	51	nla_total_size(sizeof(u32)) + /* _RINGS_TX_MAX */
	52	nla_total_size(sizeof(u32)) + /* _RINGS_RX */
	53	nla_total_size(sizeof(u32)) + /* _RINGS_RX_MINI */
	54	nla_total_size(sizeof(u32)) + /* _RINGS_RX_JUMBO */
0b70c256	55	nla_total_size(sizeof(u32)) + /* _RINGS_TX */
9690ae60	56	nla_total_size(sizeof(u32)) + /* _RINGS_RX_BUF_LEN */
1241e329	57	nla_total_size(sizeof(u8)) + /* _RINGS_TCP_DATA_SPLIT */
4dc84c06	58	nla_total_size(sizeof(u32) + /* _RINGS_CQE_SIZE */
5b4e9a7a SN	59	nla_total_size(sizeof(u8)) + /* _RINGS_TX_PUSH */
5b4e9a7a SN	60	nla_total_size(sizeof(u8))); /* _RINGS_RX_PUSH */
e4a1717b MK	61	}
	62
	63	static int rings_fill_reply(struct sk_buff *skb,
	64	const struct ethnl_req_info *req_base,
	65	const struct ethnl_reply_data *reply_base)
	66	{
	67	const struct rings_reply_data *data = RINGS_REPDATA(reply_base);
9690ae60	68	const struct kernel_ethtool_ringparam *kr = &data->kernel_ringparam;
e4a1717b MK	69	const struct ethtool_ringparam *ringparam = &data->ringparam;
e4a1717b MK	70
9690ae60 JK	71	WARN_ON(kr->tcp_data_split > ETHTOOL_TCP_DATA_SPLIT_ENABLED);
9690ae60 JK	72
e4a1717b MK	73	if ((ringparam->rx_max_pending &&
	74	(nla_put_u32(skb, ETHTOOL_A_RINGS_RX_MAX,
	75	ringparam->rx_max_pending) \|\|
	76	nla_put_u32(skb, ETHTOOL_A_RINGS_RX,
	77	ringparam->rx_pending))) \|\|
	78	(ringparam->rx_mini_max_pending &&
	79	(nla_put_u32(skb, ETHTOOL_A_RINGS_RX_MINI_MAX,
	80	ringparam->rx_mini_max_pending) \|\|
	81	nla_put_u32(skb, ETHTOOL_A_RINGS_RX_MINI,
	82	ringparam->rx_mini_pending))) \|\|
	83	(ringparam->rx_jumbo_max_pending &&
	84	(nla_put_u32(skb, ETHTOOL_A_RINGS_RX_JUMBO_MAX,
	85	ringparam->rx_jumbo_max_pending) \|\|
	86	nla_put_u32(skb, ETHTOOL_A_RINGS_RX_JUMBO,
	87	ringparam->rx_jumbo_pending))) \|\|
	88	(ringparam->tx_max_pending &&
	89	(nla_put_u32(skb, ETHTOOL_A_RINGS_TX_MAX,
	90	ringparam->tx_max_pending) \|\|
	91	nla_put_u32(skb, ETHTOOL_A_RINGS_TX,
0b70c256	92	ringparam->tx_pending))) \|\|
9690ae60 JK	93	(kr->rx_buf_len &&
	94	(nla_put_u32(skb, ETHTOOL_A_RINGS_RX_BUF_LEN, kr->rx_buf_len))) \|\|
	95	(kr->tcp_data_split &&
	96	(nla_put_u8(skb, ETHTOOL_A_RINGS_TCP_DATA_SPLIT,
1241e329 SS	97	kr->tcp_data_split))) \|\|
1241e329 SS	98	(kr->cqe_size &&
4dc84c06	99	(nla_put_u32(skb, ETHTOOL_A_RINGS_CQE_SIZE, kr->cqe_size))) \|\|
5b4e9a7a SN	100	nla_put_u8(skb, ETHTOOL_A_RINGS_TX_PUSH, !!kr->tx_push) \|\|
5b4e9a7a SN	101	nla_put_u8(skb, ETHTOOL_A_RINGS_RX_PUSH, !!kr->rx_push))
e4a1717b MK	102	return -EMSGSIZE;
	103
	104	return 0;
	105	}
	106
2fc2929e MK	107	/* RINGS_SET */
2fc2929e MK	108
ff419afa	109	const struct nla_policy ethnl_rings_set_policy[] = {
329d9c33 JK	110	[ETHTOOL_A_RINGS_HEADER] =
329d9c33 JK	111	NLA_POLICY_NESTED(ethnl_header_policy),
2fc2929e MK	112	[ETHTOOL_A_RINGS_RX] = { .type = NLA_U32 },
	113	[ETHTOOL_A_RINGS_RX_MINI] = { .type = NLA_U32 },
	114	[ETHTOOL_A_RINGS_RX_JUMBO] = { .type = NLA_U32 },
	115	[ETHTOOL_A_RINGS_TX] = { .type = NLA_U32 },
0b70c256	116	[ETHTOOL_A_RINGS_RX_BUF_LEN] = NLA_POLICY_MIN(NLA_U32, 1),
1241e329	117	[ETHTOOL_A_RINGS_CQE_SIZE] = NLA_POLICY_MIN(NLA_U32, 1),
4dc84c06	118	[ETHTOOL_A_RINGS_TX_PUSH] = NLA_POLICY_MAX(NLA_U8, 1),
5b4e9a7a	119	[ETHTOOL_A_RINGS_RX_PUSH] = NLA_POLICY_MAX(NLA_U8, 1),
2fc2929e MK	120	};
2fc2929e MK	121
04007961 JK	122	static int
	123	ethnl_set_rings_validate(struct ethnl_req_info *req_info,
	124	struct genl_info *info)
2fc2929e	125	{
04007961	126	const struct ethtool_ops *ops = req_info->dev->ethtool_ops;
5028588b	127	struct nlattr **tb = info->attrs;
2fc2929e	128
bde292c0 JW	129	if (tb[ETHTOOL_A_RINGS_RX_BUF_LEN] &&
bde292c0 JW	130	!(ops->supported_ring_params & ETHTOOL_RING_USE_RX_BUF_LEN)) {
bde292c0 JW	131	NL_SET_ERR_MSG_ATTR(info->extack,
	132	tb[ETHTOOL_A_RINGS_RX_BUF_LEN],
	133	"setting rx buf len not supported");
04007961	134	return -EOPNOTSUPP;
bde292c0 JW	135	}
	136
	137	if (tb[ETHTOOL_A_RINGS_CQE_SIZE] &&
	138	!(ops->supported_ring_params & ETHTOOL_RING_USE_CQE_SIZE)) {
bde292c0 JW	139	NL_SET_ERR_MSG_ATTR(info->extack,
	140	tb[ETHTOOL_A_RINGS_CQE_SIZE],
	141	"setting cqe size not supported");
04007961	142	return -EOPNOTSUPP;
bde292c0 JW	143	}
bde292c0 JW	144
4dc84c06 JW	145	if (tb[ETHTOOL_A_RINGS_TX_PUSH] &&
4dc84c06 JW	146	!(ops->supported_ring_params & ETHTOOL_RING_USE_TX_PUSH)) {
4dc84c06 JW	147	NL_SET_ERR_MSG_ATTR(info->extack,
	148	tb[ETHTOOL_A_RINGS_TX_PUSH],
	149	"setting tx push not supported");
04007961	150	return -EOPNOTSUPP;
4dc84c06 JW	151	}
4dc84c06 JW	152
5b4e9a7a SN	153	if (tb[ETHTOOL_A_RINGS_RX_PUSH] &&
	154	!(ops->supported_ring_params & ETHTOOL_RING_USE_RX_PUSH)) {
	155	NL_SET_ERR_MSG_ATTR(info->extack,
	156	tb[ETHTOOL_A_RINGS_RX_PUSH],
	157	"setting rx push not supported");
	158	return -EOPNOTSUPP;
	159	}
	160
04007961 JK	161	return ops->get_ringparam && ops->set_ringparam ? 1 : -EOPNOTSUPP;
	162	}
	163
	164	static int
	165	ethnl_set_rings(struct ethnl_req_info req_info, struct genl_info info)
	166	{
	167	struct kernel_ethtool_ringparam kernel_ringparam = {};
	168	struct ethtool_ringparam ringparam = {};
	169	struct net_device *dev = req_info->dev;
	170	struct nlattr **tb = info->attrs;
	171	const struct nlattr *err_attr;
	172	bool mod = false;
	173	int ret;
	174
	175	dev->ethtool_ops->get_ringparam(dev, &ringparam,
	176	&kernel_ringparam, info->extack);
2fc2929e MK	177
	178	ethnl_update_u32(&ringparam.rx_pending, tb[ETHTOOL_A_RINGS_RX], &mod);
	179	ethnl_update_u32(&ringparam.rx_mini_pending,
	180	tb[ETHTOOL_A_RINGS_RX_MINI], &mod);
	181	ethnl_update_u32(&ringparam.rx_jumbo_pending,
	182	tb[ETHTOOL_A_RINGS_RX_JUMBO], &mod);
	183	ethnl_update_u32(&ringparam.tx_pending, tb[ETHTOOL_A_RINGS_TX], &mod);
0b70c256 HC	184	ethnl_update_u32(&kernel_ringparam.rx_buf_len,
0b70c256 HC	185	tb[ETHTOOL_A_RINGS_RX_BUF_LEN], &mod);
1241e329 SS	186	ethnl_update_u32(&kernel_ringparam.cqe_size,
1241e329 SS	187	tb[ETHTOOL_A_RINGS_CQE_SIZE], &mod);
4dc84c06 JW	188	ethnl_update_u8(&kernel_ringparam.tx_push,
4dc84c06 JW	189	tb[ETHTOOL_A_RINGS_TX_PUSH], &mod);
5b4e9a7a SN	190	ethnl_update_u8(&kernel_ringparam.rx_push,
5b4e9a7a SN	191	tb[ETHTOOL_A_RINGS_RX_PUSH], &mod);
2fc2929e	192	if (!mod)
04007961	193	return 0;
2fc2929e MK	194
	195	/* ensure new ring parameters are within limits */
	196	if (ringparam.rx_pending > ringparam.rx_max_pending)
	197	err_attr = tb[ETHTOOL_A_RINGS_RX];
	198	else if (ringparam.rx_mini_pending > ringparam.rx_mini_max_pending)
	199	err_attr = tb[ETHTOOL_A_RINGS_RX_MINI];
	200	else if (ringparam.rx_jumbo_pending > ringparam.rx_jumbo_max_pending)
	201	err_attr = tb[ETHTOOL_A_RINGS_RX_JUMBO];
	202	else if (ringparam.tx_pending > ringparam.tx_max_pending)
	203	err_attr = tb[ETHTOOL_A_RINGS_TX];
	204	else
	205	err_attr = NULL;
	206	if (err_attr) {
2fc2929e	207	NL_SET_ERR_MSG_ATTR(info->extack, err_attr,
5ec82c49	208	"requested ring size exceeds maximum");
04007961	209	return -EINVAL;
2fc2929e MK	210	}
2fc2929e MK	211
74624944 HC	212	ret = dev->ethtool_ops->set_ringparam(dev, &ringparam,
74624944 HC	213	&kernel_ringparam, info->extack);
04007961	214	return ret < 0 ? ret : 1;
2fc2929e	215	}
04007961 JK	216
	217	const struct ethnl_request_ops ethnl_rings_request_ops = {
	218	.request_cmd = ETHTOOL_MSG_RINGS_GET,
	219	.reply_cmd = ETHTOOL_MSG_RINGS_GET_REPLY,
	220	.hdr_attr = ETHTOOL_A_RINGS_HEADER,
	221	.req_info_size = sizeof(struct rings_req_info),
	222	.reply_data_size = sizeof(struct rings_reply_data),
	223
	224	.prepare_data = rings_prepare_data,
	225	.reply_size = rings_reply_size,
	226	.fill_reply = rings_fill_reply,
	227
	228	.set_validate = ethnl_set_rings_validate,
	229	.set = ethnl_set_rings,
	230	.set_ntf_cmd = ETHTOOL_MSG_RINGS_NTF,
	231	};