diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-04-29 21:57:23 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-04-29 21:57:23 +0300 |
commit | 9d31d2338950293ec19d9b095fbaa9030899dcb4 (patch) | |
tree | e688040d0557c24a2eeb9f6c9c223d949f6f7ef9 /net/ethtool/stats.c | |
parent | 635de956a7f5a6ffcb04f29d70630c64c717b56b (diff) | |
parent | 4a52dd8fefb45626dace70a63c0738dbd83b7edb (diff) | |
download | linux-9d31d2338950293ec19d9b095fbaa9030899dcb4.tar.xz |
Merge tag 'net-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core:
- bpf:
- allow bpf programs calling kernel functions (initially to
reuse TCP congestion control implementations)
- enable task local storage for tracing programs - remove the
need to store per-task state in hash maps, and allow tracing
programs access to task local storage previously added for
BPF_LSM
- add bpf_for_each_map_elem() helper, allowing programs to walk
all map elements in a more robust and easier to verify fashion
- sockmap: support UDP and cross-protocol BPF_SK_SKB_VERDICT
redirection
- lpm: add support for batched ops in LPM trie
- add BTF_KIND_FLOAT support - mostly to allow use of BTF on
s390 which has floats in its headers files
- improve BPF syscall documentation and extend the use of kdoc
parsing scripts we already employ for bpf-helpers
- libbpf, bpftool: support static linking of BPF ELF files
- improve support for encapsulation of L2 packets
- xdp: restructure redirect actions to avoid a runtime lookup,
improving performance by 4-8% in microbenchmarks
- xsk: build skb by page (aka generic zerocopy xmit) - improve
performance of software AF_XDP path by 33% for devices which don't
need headers in the linear skb part (e.g. virtio)
- nexthop: resilient next-hop groups - improve path stability on
next-hops group changes (incl. offload for mlxsw)
- ipv6: segment routing: add support for IPv4 decapsulation
- icmp: add support for RFC 8335 extended PROBE messages
- inet: use bigger hash table for IP ID generation
- tcp: deal better with delayed TX completions - make sure we don't
give up on fast TCP retransmissions only because driver is slow in
reporting that it completed transmitting the original
- tcp: reorder tcp_congestion_ops for better cache locality
- mptcp:
- add sockopt support for common TCP options
- add support for common TCP msg flags
- include multiple address ids in RM_ADDR
- add reset option support for resetting one subflow
- udp: GRO L4 improvements - improve 'forward' / 'frag_list'
co-existence with UDP tunnel GRO, allowing the first to take place
correctly even for encapsulated UDP traffic
- micro-optimize dev_gro_receive() and flow dissection, avoid
retpoline overhead on VLAN and TEB GRO
- use less memory for sysctls, add a new sysctl type, to allow using
u8 instead of "int" and "long" and shrink networking sysctls
- veth: allow GRO without XDP - this allows aggregating UDP packets
before handing them off to routing, bridge, OvS, etc.
- allow specifing ifindex when device is moved to another namespace
- netfilter:
- nft_socket: add support for cgroupsv2
- nftables: add catch-all set element - special element used to
define a default action in case normal lookup missed
- use net_generic infra in many modules to avoid allocating
per-ns memory unnecessarily
- xps: improve the xps handling to avoid potential out-of-bound
accesses and use-after-free when XPS change race with other
re-configuration under traffic
- add a config knob to turn off per-cpu netdev refcnt to catch
underflows in testing
Device APIs:
- add WWAN subsystem to organize the WWAN interfaces better and
hopefully start driving towards more unified and vendor-
independent APIs
- ethtool:
- add interface for reading IEEE MIB stats (incl. mlx5 and bnxt
support)
- allow network drivers to dump arbitrary SFP EEPROM data,
current offset+length API was a poor fit for modern SFP which
define EEPROM in terms of pages (incl. mlx5 support)
- act_police, flow_offload: add support for packet-per-second
policing (incl. offload for nfp)
- psample: add additional metadata attributes like transit delay for
packets sampled from switch HW (and corresponding egress and
policy-based sampling in the mlxsw driver)
- dsa: improve support for sandwiched LAGs with bridge and DSA
- netfilter:
- flowtable: use direct xmit in topologies with IP forwarding,
bridging, vlans etc.
- nftables: counter hardware offload support
- Bluetooth:
- improvements for firmware download w/ Intel devices
- add support for reading AOSP vendor capabilities
- add support for virtio transport driver
- mac80211:
- allow concurrent monitor iface and ethernet rx decap
- set priority and queue mapping for injected frames
- phy: add support for Clause-45 PHY Loopback
- pci/iov: add sysfs MSI-X vector assignment interface to distribute
MSI-X resources to VFs (incl. mlx5 support)
New hardware/drivers:
- dsa: mv88e6xxx: add support for Marvell mv88e6393x - 11-port
Ethernet switch with 8x 1-Gigabit Ethernet and 3x 10-Gigabit
interfaces.
- dsa: support for legacy Broadcom tags used on BCM5325, BCM5365 and
BCM63xx switches
- Microchip KSZ8863 and KSZ8873; 3x 10/100Mbps Ethernet switches
- ath11k: support for QCN9074 a 802.11ax device
- Bluetooth: Broadcom BCM4330 and BMC4334
- phy: Marvell 88X2222 transceiver support
- mdio: add BCM6368 MDIO mux bus controller
- r8152: support RTL8153 and RTL8156 (USB Ethernet) chips
- mana: driver for Microsoft Azure Network Adapter (MANA)
- Actions Semi Owl Ethernet MAC
- can: driver for ETAS ES58X CAN/USB interfaces
Pure driver changes:
- add XDP support to: enetc, igc, stmmac
- add AF_XDP support to: stmmac
- virtio:
- page_to_skb() use build_skb when there's sufficient tailroom
(21% improvement for 1000B UDP frames)
- support XDP even without dedicated Tx queues - share the Tx
queues with the stack when necessary
- mlx5:
- flow rules: add support for mirroring with conntrack, matching
on ICMP, GTP, flex filters and more
- support packet sampling with flow offloads
- persist uplink representor netdev across eswitch mode changes
- allow coexistence of CQE compression and HW time-stamping
- add ethtool extended link error state reporting
- ice, iavf: support flow filters, UDP Segmentation Offload
- dpaa2-switch:
- move the driver out of staging
- add spanning tree (STP) support
- add rx copybreak support
- add tc flower hardware offload on ingress traffic
- ionic:
- implement Rx page reuse
- support HW PTP time-stamping
- octeon: support TC hardware offloads - flower matching on ingress
and egress ratelimitting.
- stmmac:
- add RX frame steering based on VLAN priority in tc flower
- support frame preemption (FPE)
- intel: add cross time-stamping freq difference adjustment
- ocelot:
- support forwarding of MRP frames in HW
- support multiple bridges
- support PTP Sync one-step timestamping
- dsa: mv88e6xxx, dpaa2-switch: offload bridge port flags like
learning, flooding etc.
- ipa: add IPA v4.5, v4.9 and v4.11 support (Qualcomm SDX55, SM8350,
SC7280 SoCs)
- mt7601u: enable TDLS support
- mt76:
- add support for 802.3 rx frames (mt7915/mt7615)
- mt7915 flash pre-calibration support
- mt7921/mt7663 runtime power management fixes"
* tag 'net-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2451 commits)
net: selftest: fix build issue if INET is disabled
net: netrom: nr_in: Remove redundant assignment to ns
net: tun: Remove redundant assignment to ret
net: phy: marvell: add downshift support for M88E1240
net: dsa: ksz: Make reg_mib_cnt a u8 as it never exceeds 255
net/sched: act_ct: Remove redundant ct get and check
icmp: standardize naming of RFC 8335 PROBE constants
bpf, selftests: Update array map tests for per-cpu batched ops
bpf: Add batched ops support for percpu array
bpf: Implement formatted output helpers with bstr_printf
seq_file: Add a seq_bprintf function
sfc: adjust efx->xdp_tx_queue_count with the real number of initialized queues
net:nfc:digital: Fix a double free in digital_tg_recv_dep_req
net: fix a concurrency bug in l2tp_tunnel_register()
net/smc: Remove redundant assignment to rc
mpls: Remove redundant assignment to err
llc2: Remove redundant assignment to rc
net/tls: Remove redundant initialization of record
rds: Remove redundant assignment to nr_sig
dt-bindings: net: mdio-gpio: add compatible for microchip,mdio-smi0
...
Diffstat (limited to 'net/ethtool/stats.c')
-rw-r--r-- | net/ethtool/stats.c | 413 |
1 files changed, 413 insertions, 0 deletions
diff --git a/net/ethtool/stats.c b/net/ethtool/stats.c new file mode 100644 index 000000000000..b7642dc96d50 --- /dev/null +++ b/net/ethtool/stats.c @@ -0,0 +1,413 @@ +// 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->mac_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, +}; |