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linux/net/ethtool/stats.c
Vladimir Oltean c96de13632 net: ethtool: fix NULL pointer dereference in stats_prepare_data() 
In the following call path:

ethnl_default_dumpit
-> ethnl_default_dump_one
   -> ctx->ops->prepare_data
      -> stats_prepare_data

struct genl_info *info will be passed as NULL, and stats_prepare_data()
dereferences it while getting the extended ack pointer.

To avoid that, just set the extack to NULL if "info" is NULL, since the
netlink extack handling messages know how to deal with that.

The pattern "info ? info->extack : NULL" is present in quite a few other
"prepare_data" implementations, so it's clear that it's a more general
problem to be dealt with at a higher level, but the code should have at
least adhered to the current conventions to avoid the NULL dereference.

Fixes: 04692c9020 ("net: ethtool: netlink: retrieve stats from multiple sources (eMAC, pMAC)")
Reported-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-01-25 09:56:31 +00:00

570 lines
18 KiB
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// SPDX-License-Identifier: GPL-2.0-only
#include "netlink.h"
#include "common.h"
#include "bitset.h"
struct stats_req_info {
struct ethnl_req_info base;
DECLARE_BITMAP(stat_mask, __ETHTOOL_STATS_CNT);
enum ethtool_mac_stats_src src;
};
#define STATS_REQINFO(__req_base) \
container_of(__req_base, struct stats_req_info, base)
struct stats_reply_data {
struct ethnl_reply_data base;
struct_group(stats,
struct ethtool_eth_phy_stats phy_stats;
struct ethtool_eth_mac_stats mac_stats;
struct ethtool_eth_ctrl_stats ctrl_stats;
struct ethtool_rmon_stats rmon_stats;
);
const struct ethtool_rmon_hist_range *rmon_ranges;
};
#define STATS_REPDATA(__reply_base) \
container_of(__reply_base, struct stats_reply_data, base)
const char stats_std_names[__ETHTOOL_STATS_CNT][ETH_GSTRING_LEN] = {
[ETHTOOL_STATS_ETH_PHY] = "eth-phy",
[ETHTOOL_STATS_ETH_MAC] = "eth-mac",
[ETHTOOL_STATS_ETH_CTRL] = "eth-ctrl",
[ETHTOOL_STATS_RMON] = "rmon",
};
const char stats_eth_phy_names[__ETHTOOL_A_STATS_ETH_PHY_CNT][ETH_GSTRING_LEN] = {
[ETHTOOL_A_STATS_ETH_PHY_5_SYM_ERR] = "SymbolErrorDuringCarrier",
};
const char stats_eth_mac_names[__ETHTOOL_A_STATS_ETH_MAC_CNT][ETH_GSTRING_LEN] = {
[ETHTOOL_A_STATS_ETH_MAC_2_TX_PKT] = "FramesTransmittedOK",
[ETHTOOL_A_STATS_ETH_MAC_3_SINGLE_COL] = "SingleCollisionFrames",
[ETHTOOL_A_STATS_ETH_MAC_4_MULTI_COL] = "MultipleCollisionFrames",
[ETHTOOL_A_STATS_ETH_MAC_5_RX_PKT] = "FramesReceivedOK",
[ETHTOOL_A_STATS_ETH_MAC_6_FCS_ERR] = "FrameCheckSequenceErrors",
[ETHTOOL_A_STATS_ETH_MAC_7_ALIGN_ERR] = "AlignmentErrors",
[ETHTOOL_A_STATS_ETH_MAC_8_TX_BYTES] = "OctetsTransmittedOK",
[ETHTOOL_A_STATS_ETH_MAC_9_TX_DEFER] = "FramesWithDeferredXmissions",
[ETHTOOL_A_STATS_ETH_MAC_10_LATE_COL] = "LateCollisions",
[ETHTOOL_A_STATS_ETH_MAC_11_XS_COL] = "FramesAbortedDueToXSColls",
[ETHTOOL_A_STATS_ETH_MAC_12_TX_INT_ERR] = "FramesLostDueToIntMACXmitError",
[ETHTOOL_A_STATS_ETH_MAC_13_CS_ERR] = "CarrierSenseErrors",
[ETHTOOL_A_STATS_ETH_MAC_14_RX_BYTES] = "OctetsReceivedOK",
[ETHTOOL_A_STATS_ETH_MAC_15_RX_INT_ERR] = "FramesLostDueToIntMACRcvError",
[ETHTOOL_A_STATS_ETH_MAC_18_TX_MCAST] = "MulticastFramesXmittedOK",
[ETHTOOL_A_STATS_ETH_MAC_19_TX_BCAST] = "BroadcastFramesXmittedOK",
[ETHTOOL_A_STATS_ETH_MAC_20_XS_DEFER] = "FramesWithExcessiveDeferral",
[ETHTOOL_A_STATS_ETH_MAC_21_RX_MCAST] = "MulticastFramesReceivedOK",
[ETHTOOL_A_STATS_ETH_MAC_22_RX_BCAST] = "BroadcastFramesReceivedOK",
[ETHTOOL_A_STATS_ETH_MAC_23_IR_LEN_ERR] = "InRangeLengthErrors",
[ETHTOOL_A_STATS_ETH_MAC_24_OOR_LEN] = "OutOfRangeLengthField",
[ETHTOOL_A_STATS_ETH_MAC_25_TOO_LONG_ERR] = "FrameTooLongErrors",
};
const char stats_eth_ctrl_names[__ETHTOOL_A_STATS_ETH_CTRL_CNT][ETH_GSTRING_LEN] = {
[ETHTOOL_A_STATS_ETH_CTRL_3_TX] = "MACControlFramesTransmitted",
[ETHTOOL_A_STATS_ETH_CTRL_4_RX] = "MACControlFramesReceived",
[ETHTOOL_A_STATS_ETH_CTRL_5_RX_UNSUP] = "UnsupportedOpcodesReceived",
};
const char stats_rmon_names[__ETHTOOL_A_STATS_RMON_CNT][ETH_GSTRING_LEN] = {
[ETHTOOL_A_STATS_RMON_UNDERSIZE] = "etherStatsUndersizePkts",
[ETHTOOL_A_STATS_RMON_OVERSIZE] = "etherStatsOversizePkts",
[ETHTOOL_A_STATS_RMON_FRAG] = "etherStatsFragments",
[ETHTOOL_A_STATS_RMON_JABBER] = "etherStatsJabbers",
};
const struct nla_policy ethnl_stats_get_policy[ETHTOOL_A_STATS_SRC + 1] = {
[ETHTOOL_A_STATS_HEADER] =
NLA_POLICY_NESTED(ethnl_header_policy),
[ETHTOOL_A_STATS_GROUPS] = { .type = NLA_NESTED },
[ETHTOOL_A_STATS_SRC] =
NLA_POLICY_MAX(NLA_U32, ETHTOOL_MAC_STATS_SRC_PMAC),
};
static int stats_parse_request(struct ethnl_req_info *req_base,
struct nlattr **tb,
struct netlink_ext_ack *extack)
{
enum ethtool_mac_stats_src src = ETHTOOL_MAC_STATS_SRC_AGGREGATE;
struct stats_req_info *req_info = STATS_REQINFO(req_base);
bool mod = false;
int err;
err = ethnl_update_bitset(req_info->stat_mask, __ETHTOOL_STATS_CNT,
tb[ETHTOOL_A_STATS_GROUPS], stats_std_names,
extack, &mod);
if (err)
return err;
if (!mod) {
NL_SET_ERR_MSG(extack, "no stats requested");
return -EINVAL;
}
if (tb[ETHTOOL_A_STATS_SRC])
src = nla_get_u32(tb[ETHTOOL_A_STATS_SRC]);
req_info->src = src;
return 0;
}
static int stats_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
struct genl_info *info)
{
const struct stats_req_info *req_info = STATS_REQINFO(req_base);
struct netlink_ext_ack *extack = info ? info->extack : NULL;
struct stats_reply_data *data = STATS_REPDATA(reply_base);
enum ethtool_mac_stats_src src = req_info->src;
struct net_device *dev = reply_base->dev;
int ret;
ret = ethnl_ops_begin(dev);
if (ret < 0)
return ret;
if ((src == ETHTOOL_MAC_STATS_SRC_EMAC ||
src == ETHTOOL_MAC_STATS_SRC_PMAC) &&
!__ethtool_dev_mm_supported(dev)) {
NL_SET_ERR_MSG_MOD(extack,
"Device does not support MAC merge layer");
ethnl_ops_complete(dev);
return -EOPNOTSUPP;
}
/* Mark all stats as unset (see ETHTOOL_STAT_NOT_SET) to prevent them
* from being reported to user space in case driver did not set them.
*/
memset(&data->stats, 0xff, sizeof(data->stats));
data->phy_stats.src = src;
data->mac_stats.src = src;
data->ctrl_stats.src = src;
data->rmon_stats.src = src;
if (test_bit(ETHTOOL_STATS_ETH_PHY, req_info->stat_mask) &&
dev->ethtool_ops->get_eth_phy_stats)
dev->ethtool_ops->get_eth_phy_stats(dev, &data->phy_stats);
if (test_bit(ETHTOOL_STATS_ETH_MAC, req_info->stat_mask) &&
dev->ethtool_ops->get_eth_mac_stats)
dev->ethtool_ops->get_eth_mac_stats(dev, &data->mac_stats);
if (test_bit(ETHTOOL_STATS_ETH_CTRL, req_info->stat_mask) &&
dev->ethtool_ops->get_eth_ctrl_stats)
dev->ethtool_ops->get_eth_ctrl_stats(dev, &data->ctrl_stats);
if (test_bit(ETHTOOL_STATS_RMON, req_info->stat_mask) &&
dev->ethtool_ops->get_rmon_stats)
dev->ethtool_ops->get_rmon_stats(dev, &data->rmon_stats,
&data->rmon_ranges);
ethnl_ops_complete(dev);
return 0;
}
static int stats_reply_size(const struct ethnl_req_info *req_base,
const struct ethnl_reply_data *reply_base)
{
const struct stats_req_info *req_info = STATS_REQINFO(req_base);
unsigned int n_grps = 0, n_stats = 0;
int len = 0;
len += nla_total_size(sizeof(u32)); /* _STATS_SRC */
if (test_bit(ETHTOOL_STATS_ETH_PHY, req_info->stat_mask)) {
n_stats += sizeof(struct ethtool_eth_phy_stats) / sizeof(u64);
n_grps++;
}
if (test_bit(ETHTOOL_STATS_ETH_MAC, req_info->stat_mask)) {
n_stats += sizeof(struct ethtool_eth_mac_stats) / sizeof(u64);
n_grps++;
}
if (test_bit(ETHTOOL_STATS_ETH_CTRL, req_info->stat_mask)) {
n_stats += sizeof(struct ethtool_eth_ctrl_stats) / sizeof(u64);
n_grps++;
}
if (test_bit(ETHTOOL_STATS_RMON, req_info->stat_mask)) {
n_stats += sizeof(struct ethtool_rmon_stats) / sizeof(u64);
n_grps++;
/* Above includes the space for _A_STATS_GRP_HIST_VALs */
len += (nla_total_size(0) + /* _A_STATS_GRP_HIST */
nla_total_size(4) + /* _A_STATS_GRP_HIST_BKT_LOW */
nla_total_size(4)) * /* _A_STATS_GRP_HIST_BKT_HI */
ETHTOOL_RMON_HIST_MAX * 2;
}
len += n_grps * (nla_total_size(0) + /* _A_STATS_GRP */
nla_total_size(4) + /* _A_STATS_GRP_ID */
nla_total_size(4)); /* _A_STATS_GRP_SS_ID */
len += n_stats * (nla_total_size(0) + /* _A_STATS_GRP_STAT */
nla_total_size_64bit(sizeof(u64)));
return len;
}
static int stat_put(struct sk_buff *skb, u16 attrtype, u64 val)
{
struct nlattr *nest;
int ret;
if (val == ETHTOOL_STAT_NOT_SET)
return 0;
/* We want to start stats attr types from 0, so we don't have a type
* for pad inside ETHTOOL_A_STATS_GRP_STAT. Pad things on the outside
* of ETHTOOL_A_STATS_GRP_STAT. Since we're one nest away from the
* actual attr we're 4B off - nla_need_padding_for_64bit() & co.
* can't be used.
*/
#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
if (!IS_ALIGNED((unsigned long)skb_tail_pointer(skb), 8))
if (!nla_reserve(skb, ETHTOOL_A_STATS_GRP_PAD, 0))
return -EMSGSIZE;
#endif
nest = nla_nest_start(skb, ETHTOOL_A_STATS_GRP_STAT);
if (!nest)
return -EMSGSIZE;
ret = nla_put_u64_64bit(skb, attrtype, val, -1 /* not used */);
if (ret) {
nla_nest_cancel(skb, nest);
return ret;
}
nla_nest_end(skb, nest);
return 0;
}
static int stats_put_phy_stats(struct sk_buff *skb,
const struct stats_reply_data *data)
{
if (stat_put(skb, ETHTOOL_A_STATS_ETH_PHY_5_SYM_ERR,
data->phy_stats.SymbolErrorDuringCarrier))
return -EMSGSIZE;
return 0;
}
static int stats_put_mac_stats(struct sk_buff *skb,
const struct stats_reply_data *data)
{
if (stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_2_TX_PKT,
data->mac_stats.FramesTransmittedOK) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_3_SINGLE_COL,
data->mac_stats.SingleCollisionFrames) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_4_MULTI_COL,
data->mac_stats.MultipleCollisionFrames) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_5_RX_PKT,
data->mac_stats.FramesReceivedOK) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_6_FCS_ERR,
data->mac_stats.FrameCheckSequenceErrors) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_7_ALIGN_ERR,
data->mac_stats.AlignmentErrors) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_8_TX_BYTES,
data->mac_stats.OctetsTransmittedOK) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_9_TX_DEFER,
data->mac_stats.FramesWithDeferredXmissions) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_10_LATE_COL,
data->mac_stats.LateCollisions) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_11_XS_COL,
data->mac_stats.FramesAbortedDueToXSColls) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_12_TX_INT_ERR,
data->mac_stats.FramesLostDueToIntMACXmitError) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_13_CS_ERR,
data->mac_stats.CarrierSenseErrors) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_14_RX_BYTES,
data->mac_stats.OctetsReceivedOK) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_15_RX_INT_ERR,
data->mac_stats.FramesLostDueToIntMACRcvError) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_18_TX_MCAST,
data->mac_stats.MulticastFramesXmittedOK) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_19_TX_BCAST,
data->mac_stats.BroadcastFramesXmittedOK) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_20_XS_DEFER,
data->mac_stats.FramesWithExcessiveDeferral) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_21_RX_MCAST,
data->mac_stats.MulticastFramesReceivedOK) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_22_RX_BCAST,
data->mac_stats.BroadcastFramesReceivedOK) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_23_IR_LEN_ERR,
data->mac_stats.InRangeLengthErrors) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_24_OOR_LEN,
data->mac_stats.OutOfRangeLengthField) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_25_TOO_LONG_ERR,
data->mac_stats.FrameTooLongErrors))
return -EMSGSIZE;
return 0;
}
static int stats_put_ctrl_stats(struct sk_buff *skb,
const struct stats_reply_data *data)
{
if (stat_put(skb, ETHTOOL_A_STATS_ETH_CTRL_3_TX,
data->ctrl_stats.MACControlFramesTransmitted) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_CTRL_4_RX,
data->ctrl_stats.MACControlFramesReceived) ||
stat_put(skb, ETHTOOL_A_STATS_ETH_CTRL_5_RX_UNSUP,
data->ctrl_stats.UnsupportedOpcodesReceived))
return -EMSGSIZE;
return 0;
}
static int stats_put_rmon_hist(struct sk_buff *skb, u32 attr, const u64 *hist,
const struct ethtool_rmon_hist_range *ranges)
{
struct nlattr *nest;
int i;
if (!ranges)
return 0;
for (i = 0; i < ETHTOOL_RMON_HIST_MAX; i++) {
if (!ranges[i].low && !ranges[i].high)
break;
if (hist[i] == ETHTOOL_STAT_NOT_SET)
continue;
nest = nla_nest_start(skb, attr);
if (!nest)
return -EMSGSIZE;
if (nla_put_u32(skb, ETHTOOL_A_STATS_GRP_HIST_BKT_LOW,
ranges[i].low) ||
nla_put_u32(skb, ETHTOOL_A_STATS_GRP_HIST_BKT_HI,
ranges[i].high) ||
nla_put_u64_64bit(skb, ETHTOOL_A_STATS_GRP_HIST_VAL,
hist[i], ETHTOOL_A_STATS_GRP_PAD))
goto err_cancel_hist;
nla_nest_end(skb, nest);
}
return 0;
err_cancel_hist:
nla_nest_cancel(skb, nest);
return -EMSGSIZE;
}
static int stats_put_rmon_stats(struct sk_buff *skb,
const struct stats_reply_data *data)
{
if (stats_put_rmon_hist(skb, ETHTOOL_A_STATS_GRP_HIST_RX,
data->rmon_stats.hist, data->rmon_ranges) ||
stats_put_rmon_hist(skb, ETHTOOL_A_STATS_GRP_HIST_TX,
data->rmon_stats.hist_tx, data->rmon_ranges))
return -EMSGSIZE;
if (stat_put(skb, ETHTOOL_A_STATS_RMON_UNDERSIZE,
data->rmon_stats.undersize_pkts) ||
stat_put(skb, ETHTOOL_A_STATS_RMON_OVERSIZE,
data->rmon_stats.oversize_pkts) ||
stat_put(skb, ETHTOOL_A_STATS_RMON_FRAG,
data->rmon_stats.fragments) ||
stat_put(skb, ETHTOOL_A_STATS_RMON_JABBER,
data->rmon_stats.jabbers))
return -EMSGSIZE;
return 0;
}
static int stats_put_stats(struct sk_buff *skb,
const struct stats_reply_data *data,
u32 id, u32 ss_id,
int (*cb)(struct sk_buff *skb,
const struct stats_reply_data *data))
{
struct nlattr *nest;
nest = nla_nest_start(skb, ETHTOOL_A_STATS_GRP);
if (!nest)
return -EMSGSIZE;
if (nla_put_u32(skb, ETHTOOL_A_STATS_GRP_ID, id) ||
nla_put_u32(skb, ETHTOOL_A_STATS_GRP_SS_ID, ss_id))
goto err_cancel;
if (cb(skb, data))
goto err_cancel;
nla_nest_end(skb, nest);
return 0;
err_cancel:
nla_nest_cancel(skb, nest);
return -EMSGSIZE;
}
static int stats_fill_reply(struct sk_buff *skb,
const struct ethnl_req_info *req_base,
const struct ethnl_reply_data *reply_base)
{
const struct stats_req_info *req_info = STATS_REQINFO(req_base);
const struct stats_reply_data *data = STATS_REPDATA(reply_base);
int ret = 0;
if (nla_put_u32(skb, ETHTOOL_A_STATS_SRC, req_info->src))
return -EMSGSIZE;
if (!ret && test_bit(ETHTOOL_STATS_ETH_PHY, req_info->stat_mask))
ret = stats_put_stats(skb, data, ETHTOOL_STATS_ETH_PHY,
ETH_SS_STATS_ETH_PHY,
stats_put_phy_stats);
if (!ret && test_bit(ETHTOOL_STATS_ETH_MAC, req_info->stat_mask))
ret = stats_put_stats(skb, data, ETHTOOL_STATS_ETH_MAC,
ETH_SS_STATS_ETH_MAC,
stats_put_mac_stats);
if (!ret && test_bit(ETHTOOL_STATS_ETH_CTRL, req_info->stat_mask))
ret = stats_put_stats(skb, data, ETHTOOL_STATS_ETH_CTRL,
ETH_SS_STATS_ETH_CTRL,
stats_put_ctrl_stats);
if (!ret && test_bit(ETHTOOL_STATS_RMON, req_info->stat_mask))
ret = stats_put_stats(skb, data, ETHTOOL_STATS_RMON,
ETH_SS_STATS_RMON, stats_put_rmon_stats);
return ret;
}
const struct ethnl_request_ops ethnl_stats_request_ops = {
.request_cmd = ETHTOOL_MSG_STATS_GET,
.reply_cmd = ETHTOOL_MSG_STATS_GET_REPLY,
.hdr_attr = ETHTOOL_A_STATS_HEADER,
.req_info_size = sizeof(struct stats_req_info),
.reply_data_size = sizeof(struct stats_reply_data),
.parse_request = stats_parse_request,
.prepare_data = stats_prepare_data,
.reply_size = stats_reply_size,
.fill_reply = stats_fill_reply,
};
static u64 ethtool_stats_sum(u64 a, u64 b)
{
if (a == ETHTOOL_STAT_NOT_SET)
return b;
if (b == ETHTOOL_STAT_NOT_SET)
return a;
return a + b;
}
/* Avoid modifying the aggregation procedure every time a new counter is added
* by treating the structures as an array of u64 statistics.
*/
static void ethtool_aggregate_stats(void *aggr_stats, const void *emac_stats,
const void *pmac_stats, size_t stats_size,
size_t stats_offset)
{
size_t num_stats = stats_size / sizeof(u64);
const u64 *s1 = emac_stats + stats_offset;
const u64 *s2 = pmac_stats + stats_offset;
u64 *s = aggr_stats + stats_offset;
int i;
for (i = 0; i < num_stats; i++)
s[i] = ethtool_stats_sum(s1[i], s2[i]);
}
void ethtool_aggregate_mac_stats(struct net_device *dev,
struct ethtool_eth_mac_stats *mac_stats)
{
const struct ethtool_ops *ops = dev->ethtool_ops;
struct ethtool_eth_mac_stats pmac, emac;
memset(&emac, 0xff, sizeof(emac));
memset(&pmac, 0xff, sizeof(pmac));
emac.src = ETHTOOL_MAC_STATS_SRC_EMAC;
pmac.src = ETHTOOL_MAC_STATS_SRC_PMAC;
ops->get_eth_mac_stats(dev, &emac);
ops->get_eth_mac_stats(dev, &pmac);
ethtool_aggregate_stats(mac_stats, &emac, &pmac,
sizeof(mac_stats->stats),
offsetof(struct ethtool_eth_mac_stats, stats));
}
EXPORT_SYMBOL(ethtool_aggregate_mac_stats);
void ethtool_aggregate_phy_stats(struct net_device *dev,
struct ethtool_eth_phy_stats *phy_stats)
{
const struct ethtool_ops *ops = dev->ethtool_ops;
struct ethtool_eth_phy_stats pmac, emac;
memset(&emac, 0xff, sizeof(emac));
memset(&pmac, 0xff, sizeof(pmac));
emac.src = ETHTOOL_MAC_STATS_SRC_EMAC;
pmac.src = ETHTOOL_MAC_STATS_SRC_PMAC;
ops->get_eth_phy_stats(dev, &emac);
ops->get_eth_phy_stats(dev, &pmac);
ethtool_aggregate_stats(phy_stats, &emac, &pmac,
sizeof(phy_stats->stats),
offsetof(struct ethtool_eth_phy_stats, stats));
}
EXPORT_SYMBOL(ethtool_aggregate_phy_stats);
void ethtool_aggregate_ctrl_stats(struct net_device *dev,
struct ethtool_eth_ctrl_stats *ctrl_stats)
{
const struct ethtool_ops *ops = dev->ethtool_ops;
struct ethtool_eth_ctrl_stats pmac, emac;
memset(&emac, 0xff, sizeof(emac));
memset(&pmac, 0xff, sizeof(pmac));
emac.src = ETHTOOL_MAC_STATS_SRC_EMAC;
pmac.src = ETHTOOL_MAC_STATS_SRC_PMAC;
ops->get_eth_ctrl_stats(dev, &emac);
ops->get_eth_ctrl_stats(dev, &pmac);
ethtool_aggregate_stats(ctrl_stats, &emac, &pmac,
sizeof(ctrl_stats->stats),
offsetof(struct ethtool_eth_ctrl_stats, stats));
}
EXPORT_SYMBOL(ethtool_aggregate_ctrl_stats);
void ethtool_aggregate_pause_stats(struct net_device *dev,
struct ethtool_pause_stats *pause_stats)
{
const struct ethtool_ops *ops = dev->ethtool_ops;
struct ethtool_pause_stats pmac, emac;
memset(&emac, 0xff, sizeof(emac));
memset(&pmac, 0xff, sizeof(pmac));
emac.src = ETHTOOL_MAC_STATS_SRC_EMAC;
pmac.src = ETHTOOL_MAC_STATS_SRC_PMAC;
ops->get_pause_stats(dev, &emac);
ops->get_pause_stats(dev, &pmac);
ethtool_aggregate_stats(pause_stats, &emac, &pmac,
sizeof(pause_stats->stats),
offsetof(struct ethtool_pause_stats, stats));
}
EXPORT_SYMBOL(ethtool_aggregate_pause_stats);
void ethtool_aggregate_rmon_stats(struct net_device *dev,
struct ethtool_rmon_stats *rmon_stats)
{
const struct ethtool_ops *ops = dev->ethtool_ops;
const struct ethtool_rmon_hist_range *dummy;
struct ethtool_rmon_stats pmac, emac;
memset(&emac, 0xff, sizeof(emac));
memset(&pmac, 0xff, sizeof(pmac));
emac.src = ETHTOOL_MAC_STATS_SRC_EMAC;
pmac.src = ETHTOOL_MAC_STATS_SRC_PMAC;
ops->get_rmon_stats(dev, &emac, &dummy);
ops->get_rmon_stats(dev, &pmac, &dummy);
ethtool_aggregate_stats(rmon_stats, &emac, &pmac,
sizeof(rmon_stats->stats),
offsetof(struct ethtool_rmon_stats, stats));
}
EXPORT_SYMBOL(ethtool_aggregate_rmon_stats);
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