mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
413 lines
14 KiB
413 lines
14 KiB
// 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); |
|
}; |
|
|
|
#define STATS_REQINFO(__req_base) \ |
|
container_of(__req_base, struct stats_req_info, base) |
|
|
|
struct stats_reply_data { |
|
struct ethnl_reply_data base; |
|
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_GROUPS + 1] = { |
|
[ETHTOOL_A_STATS_HEADER] = |
|
NLA_POLICY_NESTED(ethnl_header_policy), |
|
[ETHTOOL_A_STATS_GROUPS] = { .type = NLA_NESTED }, |
|
}; |
|
|
|
static int stats_parse_request(struct ethnl_req_info *req_base, |
|
struct nlattr **tb, |
|
struct netlink_ext_ack *extack) |
|
{ |
|
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; |
|
} |
|
|
|
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 stats_reply_data *data = STATS_REPDATA(reply_base); |
|
struct net_device *dev = reply_base->dev; |
|
int ret; |
|
|
|
ret = ethnl_ops_begin(dev); |
|
if (ret < 0) |
|
return ret; |
|
|
|
/* 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->phy_stats, 0xff, sizeof(data->phy_stats)); |
|
memset(&data->mac_stats, 0xff, sizeof(data->mac_stats)); |
|
memset(&data->ctrl_stats, 0xff, sizeof(data->ctrl_stats)); |
|
memset(&data->rmon_stats, 0xff, sizeof(data->rmon_stats)); |
|
|
|
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; |
|
|
|
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 (!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, |
|
};
|
|
|