From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- drivers/net/ethernet/mscc/ocelot_stats.c | 972 +++++++++++++++++++++++++++++++ 1 file changed, 972 insertions(+) create mode 100644 drivers/net/ethernet/mscc/ocelot_stats.c (limited to 'drivers/net/ethernet/mscc/ocelot_stats.c') diff --git a/drivers/net/ethernet/mscc/ocelot_stats.c b/drivers/net/ethernet/mscc/ocelot_stats.c new file mode 100644 index 000000000..bdb893476 --- /dev/null +++ b/drivers/net/ethernet/mscc/ocelot_stats.c @@ -0,0 +1,972 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) +/* Statistics for Ocelot switch family + * + * Copyright (c) 2017 Microsemi Corporation + * Copyright 2022 NXP + */ +#include +#include +#include +#include +#include "ocelot.h" + +enum ocelot_stat { + OCELOT_STAT_RX_OCTETS, + OCELOT_STAT_RX_UNICAST, + OCELOT_STAT_RX_MULTICAST, + OCELOT_STAT_RX_BROADCAST, + OCELOT_STAT_RX_SHORTS, + OCELOT_STAT_RX_FRAGMENTS, + OCELOT_STAT_RX_JABBERS, + OCELOT_STAT_RX_CRC_ALIGN_ERRS, + OCELOT_STAT_RX_SYM_ERRS, + OCELOT_STAT_RX_64, + OCELOT_STAT_RX_65_127, + OCELOT_STAT_RX_128_255, + OCELOT_STAT_RX_256_511, + OCELOT_STAT_RX_512_1023, + OCELOT_STAT_RX_1024_1526, + OCELOT_STAT_RX_1527_MAX, + OCELOT_STAT_RX_PAUSE, + OCELOT_STAT_RX_CONTROL, + OCELOT_STAT_RX_LONGS, + OCELOT_STAT_RX_CLASSIFIED_DROPS, + OCELOT_STAT_RX_RED_PRIO_0, + OCELOT_STAT_RX_RED_PRIO_1, + OCELOT_STAT_RX_RED_PRIO_2, + OCELOT_STAT_RX_RED_PRIO_3, + OCELOT_STAT_RX_RED_PRIO_4, + OCELOT_STAT_RX_RED_PRIO_5, + OCELOT_STAT_RX_RED_PRIO_6, + OCELOT_STAT_RX_RED_PRIO_7, + OCELOT_STAT_RX_YELLOW_PRIO_0, + OCELOT_STAT_RX_YELLOW_PRIO_1, + OCELOT_STAT_RX_YELLOW_PRIO_2, + OCELOT_STAT_RX_YELLOW_PRIO_3, + OCELOT_STAT_RX_YELLOW_PRIO_4, + OCELOT_STAT_RX_YELLOW_PRIO_5, + OCELOT_STAT_RX_YELLOW_PRIO_6, + OCELOT_STAT_RX_YELLOW_PRIO_7, + OCELOT_STAT_RX_GREEN_PRIO_0, + OCELOT_STAT_RX_GREEN_PRIO_1, + OCELOT_STAT_RX_GREEN_PRIO_2, + OCELOT_STAT_RX_GREEN_PRIO_3, + OCELOT_STAT_RX_GREEN_PRIO_4, + OCELOT_STAT_RX_GREEN_PRIO_5, + OCELOT_STAT_RX_GREEN_PRIO_6, + OCELOT_STAT_RX_GREEN_PRIO_7, + OCELOT_STAT_RX_ASSEMBLY_ERRS, + OCELOT_STAT_RX_SMD_ERRS, + OCELOT_STAT_RX_ASSEMBLY_OK, + OCELOT_STAT_RX_MERGE_FRAGMENTS, + OCELOT_STAT_RX_PMAC_OCTETS, + OCELOT_STAT_RX_PMAC_UNICAST, + OCELOT_STAT_RX_PMAC_MULTICAST, + OCELOT_STAT_RX_PMAC_BROADCAST, + OCELOT_STAT_RX_PMAC_SHORTS, + OCELOT_STAT_RX_PMAC_FRAGMENTS, + OCELOT_STAT_RX_PMAC_JABBERS, + OCELOT_STAT_RX_PMAC_CRC_ALIGN_ERRS, + OCELOT_STAT_RX_PMAC_SYM_ERRS, + OCELOT_STAT_RX_PMAC_64, + OCELOT_STAT_RX_PMAC_65_127, + OCELOT_STAT_RX_PMAC_128_255, + OCELOT_STAT_RX_PMAC_256_511, + OCELOT_STAT_RX_PMAC_512_1023, + OCELOT_STAT_RX_PMAC_1024_1526, + OCELOT_STAT_RX_PMAC_1527_MAX, + OCELOT_STAT_RX_PMAC_PAUSE, + OCELOT_STAT_RX_PMAC_CONTROL, + OCELOT_STAT_RX_PMAC_LONGS, + OCELOT_STAT_TX_OCTETS, + OCELOT_STAT_TX_UNICAST, + OCELOT_STAT_TX_MULTICAST, + OCELOT_STAT_TX_BROADCAST, + OCELOT_STAT_TX_COLLISION, + OCELOT_STAT_TX_DROPS, + OCELOT_STAT_TX_PAUSE, + OCELOT_STAT_TX_64, + OCELOT_STAT_TX_65_127, + OCELOT_STAT_TX_128_255, + OCELOT_STAT_TX_256_511, + OCELOT_STAT_TX_512_1023, + OCELOT_STAT_TX_1024_1526, + OCELOT_STAT_TX_1527_MAX, + OCELOT_STAT_TX_YELLOW_PRIO_0, + OCELOT_STAT_TX_YELLOW_PRIO_1, + OCELOT_STAT_TX_YELLOW_PRIO_2, + OCELOT_STAT_TX_YELLOW_PRIO_3, + OCELOT_STAT_TX_YELLOW_PRIO_4, + OCELOT_STAT_TX_YELLOW_PRIO_5, + OCELOT_STAT_TX_YELLOW_PRIO_6, + OCELOT_STAT_TX_YELLOW_PRIO_7, + OCELOT_STAT_TX_GREEN_PRIO_0, + OCELOT_STAT_TX_GREEN_PRIO_1, + OCELOT_STAT_TX_GREEN_PRIO_2, + OCELOT_STAT_TX_GREEN_PRIO_3, + OCELOT_STAT_TX_GREEN_PRIO_4, + OCELOT_STAT_TX_GREEN_PRIO_5, + OCELOT_STAT_TX_GREEN_PRIO_6, + OCELOT_STAT_TX_GREEN_PRIO_7, + OCELOT_STAT_TX_AGED, + OCELOT_STAT_TX_MM_HOLD, + OCELOT_STAT_TX_MERGE_FRAGMENTS, + OCELOT_STAT_TX_PMAC_OCTETS, + OCELOT_STAT_TX_PMAC_UNICAST, + OCELOT_STAT_TX_PMAC_MULTICAST, + OCELOT_STAT_TX_PMAC_BROADCAST, + OCELOT_STAT_TX_PMAC_PAUSE, + OCELOT_STAT_TX_PMAC_64, + OCELOT_STAT_TX_PMAC_65_127, + OCELOT_STAT_TX_PMAC_128_255, + OCELOT_STAT_TX_PMAC_256_511, + OCELOT_STAT_TX_PMAC_512_1023, + OCELOT_STAT_TX_PMAC_1024_1526, + OCELOT_STAT_TX_PMAC_1527_MAX, + OCELOT_STAT_DROP_LOCAL, + OCELOT_STAT_DROP_TAIL, + OCELOT_STAT_DROP_YELLOW_PRIO_0, + OCELOT_STAT_DROP_YELLOW_PRIO_1, + OCELOT_STAT_DROP_YELLOW_PRIO_2, + OCELOT_STAT_DROP_YELLOW_PRIO_3, + OCELOT_STAT_DROP_YELLOW_PRIO_4, + OCELOT_STAT_DROP_YELLOW_PRIO_5, + OCELOT_STAT_DROP_YELLOW_PRIO_6, + OCELOT_STAT_DROP_YELLOW_PRIO_7, + OCELOT_STAT_DROP_GREEN_PRIO_0, + OCELOT_STAT_DROP_GREEN_PRIO_1, + OCELOT_STAT_DROP_GREEN_PRIO_2, + OCELOT_STAT_DROP_GREEN_PRIO_3, + OCELOT_STAT_DROP_GREEN_PRIO_4, + OCELOT_STAT_DROP_GREEN_PRIO_5, + OCELOT_STAT_DROP_GREEN_PRIO_6, + OCELOT_STAT_DROP_GREEN_PRIO_7, + OCELOT_NUM_STATS, +}; + +struct ocelot_stat_layout { + u32 reg; + char name[ETH_GSTRING_LEN]; +}; + +/* 32-bit counter checked for wraparound by ocelot_port_update_stats() + * and copied to ocelot->stats. + */ +#define OCELOT_STAT(kind) \ + [OCELOT_STAT_ ## kind] = { .reg = SYS_COUNT_ ## kind } +/* Same as above, except also exported to ethtool -S. Standard counters should + * only be exposed to more specific interfaces rather than by their string name. + */ +#define OCELOT_STAT_ETHTOOL(kind, ethtool_name) \ + [OCELOT_STAT_ ## kind] = { .reg = SYS_COUNT_ ## kind, .name = ethtool_name } + +#define OCELOT_COMMON_STATS \ + OCELOT_STAT_ETHTOOL(RX_OCTETS, "rx_octets"), \ + OCELOT_STAT_ETHTOOL(RX_UNICAST, "rx_unicast"), \ + OCELOT_STAT_ETHTOOL(RX_MULTICAST, "rx_multicast"), \ + OCELOT_STAT_ETHTOOL(RX_BROADCAST, "rx_broadcast"), \ + OCELOT_STAT_ETHTOOL(RX_SHORTS, "rx_shorts"), \ + OCELOT_STAT_ETHTOOL(RX_FRAGMENTS, "rx_fragments"), \ + OCELOT_STAT_ETHTOOL(RX_JABBERS, "rx_jabbers"), \ + OCELOT_STAT_ETHTOOL(RX_CRC_ALIGN_ERRS, "rx_crc_align_errs"), \ + OCELOT_STAT_ETHTOOL(RX_SYM_ERRS, "rx_sym_errs"), \ + OCELOT_STAT_ETHTOOL(RX_64, "rx_frames_below_65_octets"), \ + OCELOT_STAT_ETHTOOL(RX_65_127, "rx_frames_65_to_127_octets"), \ + OCELOT_STAT_ETHTOOL(RX_128_255, "rx_frames_128_to_255_octets"), \ + OCELOT_STAT_ETHTOOL(RX_256_511, "rx_frames_256_to_511_octets"), \ + OCELOT_STAT_ETHTOOL(RX_512_1023, "rx_frames_512_to_1023_octets"), \ + OCELOT_STAT_ETHTOOL(RX_1024_1526, "rx_frames_1024_to_1526_octets"), \ + OCELOT_STAT_ETHTOOL(RX_1527_MAX, "rx_frames_over_1526_octets"), \ + OCELOT_STAT_ETHTOOL(RX_PAUSE, "rx_pause"), \ + OCELOT_STAT_ETHTOOL(RX_CONTROL, "rx_control"), \ + OCELOT_STAT_ETHTOOL(RX_LONGS, "rx_longs"), \ + OCELOT_STAT_ETHTOOL(RX_CLASSIFIED_DROPS, "rx_classified_drops"), \ + OCELOT_STAT_ETHTOOL(RX_RED_PRIO_0, "rx_red_prio_0"), \ + OCELOT_STAT_ETHTOOL(RX_RED_PRIO_1, "rx_red_prio_1"), \ + OCELOT_STAT_ETHTOOL(RX_RED_PRIO_2, "rx_red_prio_2"), \ + OCELOT_STAT_ETHTOOL(RX_RED_PRIO_3, "rx_red_prio_3"), \ + OCELOT_STAT_ETHTOOL(RX_RED_PRIO_4, "rx_red_prio_4"), \ + OCELOT_STAT_ETHTOOL(RX_RED_PRIO_5, "rx_red_prio_5"), \ + OCELOT_STAT_ETHTOOL(RX_RED_PRIO_6, "rx_red_prio_6"), \ + OCELOT_STAT_ETHTOOL(RX_RED_PRIO_7, "rx_red_prio_7"), \ + OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_0, "rx_yellow_prio_0"), \ + OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_1, "rx_yellow_prio_1"), \ + OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_2, "rx_yellow_prio_2"), \ + OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_3, "rx_yellow_prio_3"), \ + OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_4, "rx_yellow_prio_4"), \ + OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_5, "rx_yellow_prio_5"), \ + OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_6, "rx_yellow_prio_6"), \ + OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_7, "rx_yellow_prio_7"), \ + OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_0, "rx_green_prio_0"), \ + OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_1, "rx_green_prio_1"), \ + OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_2, "rx_green_prio_2"), \ + OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_3, "rx_green_prio_3"), \ + OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_4, "rx_green_prio_4"), \ + OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_5, "rx_green_prio_5"), \ + OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_6, "rx_green_prio_6"), \ + OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_7, "rx_green_prio_7"), \ + OCELOT_STAT_ETHTOOL(TX_OCTETS, "tx_octets"), \ + OCELOT_STAT_ETHTOOL(TX_UNICAST, "tx_unicast"), \ + OCELOT_STAT_ETHTOOL(TX_MULTICAST, "tx_multicast"), \ + OCELOT_STAT_ETHTOOL(TX_BROADCAST, "tx_broadcast"), \ + OCELOT_STAT_ETHTOOL(TX_COLLISION, "tx_collision"), \ + OCELOT_STAT_ETHTOOL(TX_DROPS, "tx_drops"), \ + OCELOT_STAT_ETHTOOL(TX_PAUSE, "tx_pause"), \ + OCELOT_STAT_ETHTOOL(TX_64, "tx_frames_below_65_octets"), \ + OCELOT_STAT_ETHTOOL(TX_65_127, "tx_frames_65_to_127_octets"), \ + OCELOT_STAT_ETHTOOL(TX_128_255, "tx_frames_128_255_octets"), \ + OCELOT_STAT_ETHTOOL(TX_256_511, "tx_frames_256_511_octets"), \ + OCELOT_STAT_ETHTOOL(TX_512_1023, "tx_frames_512_1023_octets"), \ + OCELOT_STAT_ETHTOOL(TX_1024_1526, "tx_frames_1024_1526_octets"), \ + OCELOT_STAT_ETHTOOL(TX_1527_MAX, "tx_frames_over_1526_octets"), \ + OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_0, "tx_yellow_prio_0"), \ + OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_1, "tx_yellow_prio_1"), \ + OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_2, "tx_yellow_prio_2"), \ + OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_3, "tx_yellow_prio_3"), \ + OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_4, "tx_yellow_prio_4"), \ + OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_5, "tx_yellow_prio_5"), \ + OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_6, "tx_yellow_prio_6"), \ + OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_7, "tx_yellow_prio_7"), \ + OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_0, "tx_green_prio_0"), \ + OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_1, "tx_green_prio_1"), \ + OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_2, "tx_green_prio_2"), \ + OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_3, "tx_green_prio_3"), \ + OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_4, "tx_green_prio_4"), \ + OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_5, "tx_green_prio_5"), \ + OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_6, "tx_green_prio_6"), \ + OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_7, "tx_green_prio_7"), \ + OCELOT_STAT_ETHTOOL(TX_AGED, "tx_aged"), \ + OCELOT_STAT_ETHTOOL(DROP_LOCAL, "drop_local"), \ + OCELOT_STAT_ETHTOOL(DROP_TAIL, "drop_tail"), \ + OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_0, "drop_yellow_prio_0"), \ + OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_1, "drop_yellow_prio_1"), \ + OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_2, "drop_yellow_prio_2"), \ + OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_3, "drop_yellow_prio_3"), \ + OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_4, "drop_yellow_prio_4"), \ + OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_5, "drop_yellow_prio_5"), \ + OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_6, "drop_yellow_prio_6"), \ + OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_7, "drop_yellow_prio_7"), \ + OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_0, "drop_green_prio_0"), \ + OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_1, "drop_green_prio_1"), \ + OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_2, "drop_green_prio_2"), \ + OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_3, "drop_green_prio_3"), \ + OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_4, "drop_green_prio_4"), \ + OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_5, "drop_green_prio_5"), \ + OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_6, "drop_green_prio_6"), \ + OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_7, "drop_green_prio_7") + +struct ocelot_stats_region { + struct list_head node; + u32 base; + int count; + u32 *buf; +}; + +static const struct ocelot_stat_layout ocelot_stats_layout[OCELOT_NUM_STATS] = { + OCELOT_COMMON_STATS, +}; + +static const struct ocelot_stat_layout ocelot_mm_stats_layout[OCELOT_NUM_STATS] = { + OCELOT_COMMON_STATS, + OCELOT_STAT(RX_ASSEMBLY_ERRS), + OCELOT_STAT(RX_SMD_ERRS), + OCELOT_STAT(RX_ASSEMBLY_OK), + OCELOT_STAT(RX_MERGE_FRAGMENTS), + OCELOT_STAT(TX_MERGE_FRAGMENTS), + OCELOT_STAT(RX_PMAC_OCTETS), + OCELOT_STAT(RX_PMAC_UNICAST), + OCELOT_STAT(RX_PMAC_MULTICAST), + OCELOT_STAT(RX_PMAC_BROADCAST), + OCELOT_STAT(RX_PMAC_SHORTS), + OCELOT_STAT(RX_PMAC_FRAGMENTS), + OCELOT_STAT(RX_PMAC_JABBERS), + OCELOT_STAT(RX_PMAC_CRC_ALIGN_ERRS), + OCELOT_STAT(RX_PMAC_SYM_ERRS), + OCELOT_STAT(RX_PMAC_64), + OCELOT_STAT(RX_PMAC_65_127), + OCELOT_STAT(RX_PMAC_128_255), + OCELOT_STAT(RX_PMAC_256_511), + OCELOT_STAT(RX_PMAC_512_1023), + OCELOT_STAT(RX_PMAC_1024_1526), + OCELOT_STAT(RX_PMAC_1527_MAX), + OCELOT_STAT(RX_PMAC_PAUSE), + OCELOT_STAT(RX_PMAC_CONTROL), + OCELOT_STAT(RX_PMAC_LONGS), + OCELOT_STAT(TX_PMAC_OCTETS), + OCELOT_STAT(TX_PMAC_UNICAST), + OCELOT_STAT(TX_PMAC_MULTICAST), + OCELOT_STAT(TX_PMAC_BROADCAST), + OCELOT_STAT(TX_PMAC_PAUSE), + OCELOT_STAT(TX_PMAC_64), + OCELOT_STAT(TX_PMAC_65_127), + OCELOT_STAT(TX_PMAC_128_255), + OCELOT_STAT(TX_PMAC_256_511), + OCELOT_STAT(TX_PMAC_512_1023), + OCELOT_STAT(TX_PMAC_1024_1526), + OCELOT_STAT(TX_PMAC_1527_MAX), +}; + +static const struct ocelot_stat_layout * +ocelot_get_stats_layout(struct ocelot *ocelot) +{ + if (ocelot->mm_supported) + return ocelot_mm_stats_layout; + + return ocelot_stats_layout; +} + +/* Read the counters from hardware and keep them in region->buf. + * Caller must hold &ocelot->stat_view_lock. + */ +static int ocelot_port_update_stats(struct ocelot *ocelot, int port) +{ + struct ocelot_stats_region *region; + int err; + + /* Configure the port to read the stats from */ + ocelot_write(ocelot, SYS_STAT_CFG_STAT_VIEW(port), SYS_STAT_CFG); + + list_for_each_entry(region, &ocelot->stats_regions, node) { + err = ocelot_bulk_read(ocelot, region->base, region->buf, + region->count); + if (err) + return err; + } + + return 0; +} + +/* Transfer the counters from region->buf to ocelot->stats. + * Caller must hold &ocelot->stat_view_lock and &ocelot->stats_lock. + */ +static void ocelot_port_transfer_stats(struct ocelot *ocelot, int port) +{ + unsigned int idx = port * OCELOT_NUM_STATS; + struct ocelot_stats_region *region; + int j; + + list_for_each_entry(region, &ocelot->stats_regions, node) { + for (j = 0; j < region->count; j++) { + u64 *stat = &ocelot->stats[idx + j]; + u64 val = region->buf[j]; + + if (val < (*stat & U32_MAX)) + *stat += (u64)1 << 32; + + *stat = (*stat & ~(u64)U32_MAX) + val; + } + + idx += region->count; + } +} + +static void ocelot_check_stats_work(struct work_struct *work) +{ + struct delayed_work *del_work = to_delayed_work(work); + struct ocelot *ocelot = container_of(del_work, struct ocelot, + stats_work); + int port, err; + + mutex_lock(&ocelot->stat_view_lock); + + for (port = 0; port < ocelot->num_phys_ports; port++) { + err = ocelot_port_update_stats(ocelot, port); + if (err) + break; + + spin_lock(&ocelot->stats_lock); + ocelot_port_transfer_stats(ocelot, port); + spin_unlock(&ocelot->stats_lock); + } + + if (!err && ocelot->ops->update_stats) + ocelot->ops->update_stats(ocelot); + + mutex_unlock(&ocelot->stat_view_lock); + + if (err) + dev_err(ocelot->dev, "Error %d updating ethtool stats\n", err); + + queue_delayed_work(ocelot->stats_queue, &ocelot->stats_work, + OCELOT_STATS_CHECK_DELAY); +} + +void ocelot_get_strings(struct ocelot *ocelot, int port, u32 sset, u8 *data) +{ + const struct ocelot_stat_layout *layout; + int i; + + if (sset != ETH_SS_STATS) + return; + + layout = ocelot_get_stats_layout(ocelot); + + for (i = 0; i < OCELOT_NUM_STATS; i++) { + if (layout[i].name[0] == '\0') + continue; + + memcpy(data, layout[i].name, ETH_GSTRING_LEN); + data += ETH_GSTRING_LEN; + } +} +EXPORT_SYMBOL(ocelot_get_strings); + +/* Update ocelot->stats for the given port and run the given callback */ +static void ocelot_port_stats_run(struct ocelot *ocelot, int port, void *priv, + void (*cb)(struct ocelot *ocelot, int port, + void *priv)) +{ + int err; + + mutex_lock(&ocelot->stat_view_lock); + + err = ocelot_port_update_stats(ocelot, port); + if (err) { + dev_err(ocelot->dev, "Failed to update port %d stats: %pe\n", + port, ERR_PTR(err)); + goto out_unlock; + } + + spin_lock(&ocelot->stats_lock); + + ocelot_port_transfer_stats(ocelot, port); + cb(ocelot, port, priv); + + spin_unlock(&ocelot->stats_lock); + +out_unlock: + mutex_unlock(&ocelot->stat_view_lock); +} + +int ocelot_get_sset_count(struct ocelot *ocelot, int port, int sset) +{ + const struct ocelot_stat_layout *layout; + int i, num_stats = 0; + + if (sset != ETH_SS_STATS) + return -EOPNOTSUPP; + + layout = ocelot_get_stats_layout(ocelot); + + for (i = 0; i < OCELOT_NUM_STATS; i++) + if (layout[i].name[0] != '\0') + num_stats++; + + return num_stats; +} +EXPORT_SYMBOL(ocelot_get_sset_count); + +static void ocelot_port_ethtool_stats_cb(struct ocelot *ocelot, int port, + void *priv) +{ + const struct ocelot_stat_layout *layout; + u64 *data = priv; + int i; + + layout = ocelot_get_stats_layout(ocelot); + + /* Copy all supported counters */ + for (i = 0; i < OCELOT_NUM_STATS; i++) { + int index = port * OCELOT_NUM_STATS + i; + + if (layout[i].name[0] == '\0') + continue; + + *data++ = ocelot->stats[index]; + } +} + +void ocelot_get_ethtool_stats(struct ocelot *ocelot, int port, u64 *data) +{ + ocelot_port_stats_run(ocelot, port, data, ocelot_port_ethtool_stats_cb); +} +EXPORT_SYMBOL(ocelot_get_ethtool_stats); + +static void ocelot_port_pause_stats_cb(struct ocelot *ocelot, int port, void *priv) +{ + u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; + struct ethtool_pause_stats *pause_stats = priv; + + pause_stats->tx_pause_frames = s[OCELOT_STAT_TX_PAUSE]; + pause_stats->rx_pause_frames = s[OCELOT_STAT_RX_PAUSE]; +} + +static void ocelot_port_pmac_pause_stats_cb(struct ocelot *ocelot, int port, + void *priv) +{ + u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; + struct ethtool_pause_stats *pause_stats = priv; + + pause_stats->tx_pause_frames = s[OCELOT_STAT_TX_PMAC_PAUSE]; + pause_stats->rx_pause_frames = s[OCELOT_STAT_RX_PMAC_PAUSE]; +} + +static void ocelot_port_mm_stats_cb(struct ocelot *ocelot, int port, + void *priv) +{ + u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; + struct ethtool_mm_stats *stats = priv; + + stats->MACMergeFrameAssErrorCount = s[OCELOT_STAT_RX_ASSEMBLY_ERRS]; + stats->MACMergeFrameSmdErrorCount = s[OCELOT_STAT_RX_SMD_ERRS]; + stats->MACMergeFrameAssOkCount = s[OCELOT_STAT_RX_ASSEMBLY_OK]; + stats->MACMergeFragCountRx = s[OCELOT_STAT_RX_MERGE_FRAGMENTS]; + stats->MACMergeFragCountTx = s[OCELOT_STAT_TX_MERGE_FRAGMENTS]; + stats->MACMergeHoldCount = s[OCELOT_STAT_TX_MM_HOLD]; +} + +void ocelot_port_get_pause_stats(struct ocelot *ocelot, int port, + struct ethtool_pause_stats *pause_stats) +{ + struct net_device *dev; + + switch (pause_stats->src) { + case ETHTOOL_MAC_STATS_SRC_EMAC: + ocelot_port_stats_run(ocelot, port, pause_stats, + ocelot_port_pause_stats_cb); + break; + case ETHTOOL_MAC_STATS_SRC_PMAC: + if (ocelot->mm_supported) + ocelot_port_stats_run(ocelot, port, pause_stats, + ocelot_port_pmac_pause_stats_cb); + break; + case ETHTOOL_MAC_STATS_SRC_AGGREGATE: + dev = ocelot->ops->port_to_netdev(ocelot, port); + ethtool_aggregate_pause_stats(dev, pause_stats); + break; + } +} +EXPORT_SYMBOL_GPL(ocelot_port_get_pause_stats); + +void ocelot_port_get_mm_stats(struct ocelot *ocelot, int port, + struct ethtool_mm_stats *stats) +{ + if (!ocelot->mm_supported) + return; + + ocelot_port_stats_run(ocelot, port, stats, ocelot_port_mm_stats_cb); +} +EXPORT_SYMBOL_GPL(ocelot_port_get_mm_stats); + +static const struct ethtool_rmon_hist_range ocelot_rmon_ranges[] = { + { 64, 64 }, + { 65, 127 }, + { 128, 255 }, + { 256, 511 }, + { 512, 1023 }, + { 1024, 1526 }, + { 1527, 65535 }, + {}, +}; + +static void ocelot_port_rmon_stats_cb(struct ocelot *ocelot, int port, void *priv) +{ + u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; + struct ethtool_rmon_stats *rmon_stats = priv; + + rmon_stats->undersize_pkts = s[OCELOT_STAT_RX_SHORTS]; + rmon_stats->oversize_pkts = s[OCELOT_STAT_RX_LONGS]; + rmon_stats->fragments = s[OCELOT_STAT_RX_FRAGMENTS]; + rmon_stats->jabbers = s[OCELOT_STAT_RX_JABBERS]; + + rmon_stats->hist[0] = s[OCELOT_STAT_RX_64]; + rmon_stats->hist[1] = s[OCELOT_STAT_RX_65_127]; + rmon_stats->hist[2] = s[OCELOT_STAT_RX_128_255]; + rmon_stats->hist[3] = s[OCELOT_STAT_RX_256_511]; + rmon_stats->hist[4] = s[OCELOT_STAT_RX_512_1023]; + rmon_stats->hist[5] = s[OCELOT_STAT_RX_1024_1526]; + rmon_stats->hist[6] = s[OCELOT_STAT_RX_1527_MAX]; + + rmon_stats->hist_tx[0] = s[OCELOT_STAT_TX_64]; + rmon_stats->hist_tx[1] = s[OCELOT_STAT_TX_65_127]; + rmon_stats->hist_tx[2] = s[OCELOT_STAT_TX_128_255]; + rmon_stats->hist_tx[3] = s[OCELOT_STAT_TX_128_255]; + rmon_stats->hist_tx[4] = s[OCELOT_STAT_TX_256_511]; + rmon_stats->hist_tx[5] = s[OCELOT_STAT_TX_512_1023]; + rmon_stats->hist_tx[6] = s[OCELOT_STAT_TX_1024_1526]; +} + +static void ocelot_port_pmac_rmon_stats_cb(struct ocelot *ocelot, int port, + void *priv) +{ + u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; + struct ethtool_rmon_stats *rmon_stats = priv; + + rmon_stats->undersize_pkts = s[OCELOT_STAT_RX_PMAC_SHORTS]; + rmon_stats->oversize_pkts = s[OCELOT_STAT_RX_PMAC_LONGS]; + rmon_stats->fragments = s[OCELOT_STAT_RX_PMAC_FRAGMENTS]; + rmon_stats->jabbers = s[OCELOT_STAT_RX_PMAC_JABBERS]; + + rmon_stats->hist[0] = s[OCELOT_STAT_RX_PMAC_64]; + rmon_stats->hist[1] = s[OCELOT_STAT_RX_PMAC_65_127]; + rmon_stats->hist[2] = s[OCELOT_STAT_RX_PMAC_128_255]; + rmon_stats->hist[3] = s[OCELOT_STAT_RX_PMAC_256_511]; + rmon_stats->hist[4] = s[OCELOT_STAT_RX_PMAC_512_1023]; + rmon_stats->hist[5] = s[OCELOT_STAT_RX_PMAC_1024_1526]; + rmon_stats->hist[6] = s[OCELOT_STAT_RX_PMAC_1527_MAX]; + + rmon_stats->hist_tx[0] = s[OCELOT_STAT_TX_PMAC_64]; + rmon_stats->hist_tx[1] = s[OCELOT_STAT_TX_PMAC_65_127]; + rmon_stats->hist_tx[2] = s[OCELOT_STAT_TX_PMAC_128_255]; + rmon_stats->hist_tx[3] = s[OCELOT_STAT_TX_PMAC_128_255]; + rmon_stats->hist_tx[4] = s[OCELOT_STAT_TX_PMAC_256_511]; + rmon_stats->hist_tx[5] = s[OCELOT_STAT_TX_PMAC_512_1023]; + rmon_stats->hist_tx[6] = s[OCELOT_STAT_TX_PMAC_1024_1526]; +} + +void ocelot_port_get_rmon_stats(struct ocelot *ocelot, int port, + struct ethtool_rmon_stats *rmon_stats, + const struct ethtool_rmon_hist_range **ranges) +{ + struct net_device *dev; + + *ranges = ocelot_rmon_ranges; + + switch (rmon_stats->src) { + case ETHTOOL_MAC_STATS_SRC_EMAC: + ocelot_port_stats_run(ocelot, port, rmon_stats, + ocelot_port_rmon_stats_cb); + break; + case ETHTOOL_MAC_STATS_SRC_PMAC: + if (ocelot->mm_supported) + ocelot_port_stats_run(ocelot, port, rmon_stats, + ocelot_port_pmac_rmon_stats_cb); + break; + case ETHTOOL_MAC_STATS_SRC_AGGREGATE: + dev = ocelot->ops->port_to_netdev(ocelot, port); + ethtool_aggregate_rmon_stats(dev, rmon_stats); + break; + } +} +EXPORT_SYMBOL_GPL(ocelot_port_get_rmon_stats); + +static void ocelot_port_ctrl_stats_cb(struct ocelot *ocelot, int port, void *priv) +{ + u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; + struct ethtool_eth_ctrl_stats *ctrl_stats = priv; + + ctrl_stats->MACControlFramesReceived = s[OCELOT_STAT_RX_CONTROL]; +} + +static void ocelot_port_pmac_ctrl_stats_cb(struct ocelot *ocelot, int port, + void *priv) +{ + u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; + struct ethtool_eth_ctrl_stats *ctrl_stats = priv; + + ctrl_stats->MACControlFramesReceived = s[OCELOT_STAT_RX_PMAC_CONTROL]; +} + +void ocelot_port_get_eth_ctrl_stats(struct ocelot *ocelot, int port, + struct ethtool_eth_ctrl_stats *ctrl_stats) +{ + struct net_device *dev; + + switch (ctrl_stats->src) { + case ETHTOOL_MAC_STATS_SRC_EMAC: + ocelot_port_stats_run(ocelot, port, ctrl_stats, + ocelot_port_ctrl_stats_cb); + break; + case ETHTOOL_MAC_STATS_SRC_PMAC: + if (ocelot->mm_supported) + ocelot_port_stats_run(ocelot, port, ctrl_stats, + ocelot_port_pmac_ctrl_stats_cb); + break; + case ETHTOOL_MAC_STATS_SRC_AGGREGATE: + dev = ocelot->ops->port_to_netdev(ocelot, port); + ethtool_aggregate_ctrl_stats(dev, ctrl_stats); + break; + } +} +EXPORT_SYMBOL_GPL(ocelot_port_get_eth_ctrl_stats); + +static void ocelot_port_mac_stats_cb(struct ocelot *ocelot, int port, void *priv) +{ + u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; + struct ethtool_eth_mac_stats *mac_stats = priv; + + mac_stats->OctetsTransmittedOK = s[OCELOT_STAT_TX_OCTETS]; + mac_stats->FramesTransmittedOK = s[OCELOT_STAT_TX_64] + + s[OCELOT_STAT_TX_65_127] + + s[OCELOT_STAT_TX_128_255] + + s[OCELOT_STAT_TX_256_511] + + s[OCELOT_STAT_TX_512_1023] + + s[OCELOT_STAT_TX_1024_1526] + + s[OCELOT_STAT_TX_1527_MAX]; + mac_stats->OctetsReceivedOK = s[OCELOT_STAT_RX_OCTETS]; + mac_stats->FramesReceivedOK = s[OCELOT_STAT_RX_GREEN_PRIO_0] + + s[OCELOT_STAT_RX_GREEN_PRIO_1] + + s[OCELOT_STAT_RX_GREEN_PRIO_2] + + s[OCELOT_STAT_RX_GREEN_PRIO_3] + + s[OCELOT_STAT_RX_GREEN_PRIO_4] + + s[OCELOT_STAT_RX_GREEN_PRIO_5] + + s[OCELOT_STAT_RX_GREEN_PRIO_6] + + s[OCELOT_STAT_RX_GREEN_PRIO_7] + + s[OCELOT_STAT_RX_YELLOW_PRIO_0] + + s[OCELOT_STAT_RX_YELLOW_PRIO_1] + + s[OCELOT_STAT_RX_YELLOW_PRIO_2] + + s[OCELOT_STAT_RX_YELLOW_PRIO_3] + + s[OCELOT_STAT_RX_YELLOW_PRIO_4] + + s[OCELOT_STAT_RX_YELLOW_PRIO_5] + + s[OCELOT_STAT_RX_YELLOW_PRIO_6] + + s[OCELOT_STAT_RX_YELLOW_PRIO_7]; + mac_stats->MulticastFramesXmittedOK = s[OCELOT_STAT_TX_MULTICAST]; + mac_stats->BroadcastFramesXmittedOK = s[OCELOT_STAT_TX_BROADCAST]; + mac_stats->MulticastFramesReceivedOK = s[OCELOT_STAT_RX_MULTICAST]; + mac_stats->BroadcastFramesReceivedOK = s[OCELOT_STAT_RX_BROADCAST]; + mac_stats->FrameTooLongErrors = s[OCELOT_STAT_RX_LONGS]; + /* Sadly, C_RX_CRC is the sum of FCS and alignment errors, they are not + * counted individually. + */ + mac_stats->FrameCheckSequenceErrors = s[OCELOT_STAT_RX_CRC_ALIGN_ERRS]; + mac_stats->AlignmentErrors = s[OCELOT_STAT_RX_CRC_ALIGN_ERRS]; +} + +static void ocelot_port_pmac_mac_stats_cb(struct ocelot *ocelot, int port, + void *priv) +{ + u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; + struct ethtool_eth_mac_stats *mac_stats = priv; + + mac_stats->OctetsTransmittedOK = s[OCELOT_STAT_TX_PMAC_OCTETS]; + mac_stats->FramesTransmittedOK = s[OCELOT_STAT_TX_PMAC_64] + + s[OCELOT_STAT_TX_PMAC_65_127] + + s[OCELOT_STAT_TX_PMAC_128_255] + + s[OCELOT_STAT_TX_PMAC_256_511] + + s[OCELOT_STAT_TX_PMAC_512_1023] + + s[OCELOT_STAT_TX_PMAC_1024_1526] + + s[OCELOT_STAT_TX_PMAC_1527_MAX]; + mac_stats->OctetsReceivedOK = s[OCELOT_STAT_RX_PMAC_OCTETS]; + mac_stats->FramesReceivedOK = s[OCELOT_STAT_RX_PMAC_64] + + s[OCELOT_STAT_RX_PMAC_65_127] + + s[OCELOT_STAT_RX_PMAC_128_255] + + s[OCELOT_STAT_RX_PMAC_256_511] + + s[OCELOT_STAT_RX_PMAC_512_1023] + + s[OCELOT_STAT_RX_PMAC_1024_1526] + + s[OCELOT_STAT_RX_PMAC_1527_MAX]; + mac_stats->MulticastFramesXmittedOK = s[OCELOT_STAT_TX_PMAC_MULTICAST]; + mac_stats->BroadcastFramesXmittedOK = s[OCELOT_STAT_TX_PMAC_BROADCAST]; + mac_stats->MulticastFramesReceivedOK = s[OCELOT_STAT_RX_PMAC_MULTICAST]; + mac_stats->BroadcastFramesReceivedOK = s[OCELOT_STAT_RX_PMAC_BROADCAST]; + mac_stats->FrameTooLongErrors = s[OCELOT_STAT_RX_PMAC_LONGS]; + /* Sadly, C_RX_CRC is the sum of FCS and alignment errors, they are not + * counted individually. + */ + mac_stats->FrameCheckSequenceErrors = s[OCELOT_STAT_RX_PMAC_CRC_ALIGN_ERRS]; + mac_stats->AlignmentErrors = s[OCELOT_STAT_RX_PMAC_CRC_ALIGN_ERRS]; +} + +void ocelot_port_get_eth_mac_stats(struct ocelot *ocelot, int port, + struct ethtool_eth_mac_stats *mac_stats) +{ + struct net_device *dev; + + switch (mac_stats->src) { + case ETHTOOL_MAC_STATS_SRC_EMAC: + ocelot_port_stats_run(ocelot, port, mac_stats, + ocelot_port_mac_stats_cb); + break; + case ETHTOOL_MAC_STATS_SRC_PMAC: + if (ocelot->mm_supported) + ocelot_port_stats_run(ocelot, port, mac_stats, + ocelot_port_pmac_mac_stats_cb); + break; + case ETHTOOL_MAC_STATS_SRC_AGGREGATE: + dev = ocelot->ops->port_to_netdev(ocelot, port); + ethtool_aggregate_mac_stats(dev, mac_stats); + break; + } +} +EXPORT_SYMBOL_GPL(ocelot_port_get_eth_mac_stats); + +static void ocelot_port_phy_stats_cb(struct ocelot *ocelot, int port, void *priv) +{ + u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; + struct ethtool_eth_phy_stats *phy_stats = priv; + + phy_stats->SymbolErrorDuringCarrier = s[OCELOT_STAT_RX_SYM_ERRS]; +} + +static void ocelot_port_pmac_phy_stats_cb(struct ocelot *ocelot, int port, + void *priv) +{ + u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; + struct ethtool_eth_phy_stats *phy_stats = priv; + + phy_stats->SymbolErrorDuringCarrier = s[OCELOT_STAT_RX_PMAC_SYM_ERRS]; +} + +void ocelot_port_get_eth_phy_stats(struct ocelot *ocelot, int port, + struct ethtool_eth_phy_stats *phy_stats) +{ + struct net_device *dev; + + switch (phy_stats->src) { + case ETHTOOL_MAC_STATS_SRC_EMAC: + ocelot_port_stats_run(ocelot, port, phy_stats, + ocelot_port_phy_stats_cb); + break; + case ETHTOOL_MAC_STATS_SRC_PMAC: + if (ocelot->mm_supported) + ocelot_port_stats_run(ocelot, port, phy_stats, + ocelot_port_pmac_phy_stats_cb); + break; + case ETHTOOL_MAC_STATS_SRC_AGGREGATE: + dev = ocelot->ops->port_to_netdev(ocelot, port); + ethtool_aggregate_phy_stats(dev, phy_stats); + break; + } +} +EXPORT_SYMBOL_GPL(ocelot_port_get_eth_phy_stats); + +void ocelot_port_get_stats64(struct ocelot *ocelot, int port, + struct rtnl_link_stats64 *stats) +{ + u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; + + spin_lock(&ocelot->stats_lock); + + /* Get Rx stats */ + stats->rx_bytes = s[OCELOT_STAT_RX_OCTETS]; + stats->rx_packets = s[OCELOT_STAT_RX_SHORTS] + + s[OCELOT_STAT_RX_FRAGMENTS] + + s[OCELOT_STAT_RX_JABBERS] + + s[OCELOT_STAT_RX_LONGS] + + s[OCELOT_STAT_RX_64] + + s[OCELOT_STAT_RX_65_127] + + s[OCELOT_STAT_RX_128_255] + + s[OCELOT_STAT_RX_256_511] + + s[OCELOT_STAT_RX_512_1023] + + s[OCELOT_STAT_RX_1024_1526] + + s[OCELOT_STAT_RX_1527_MAX]; + stats->multicast = s[OCELOT_STAT_RX_MULTICAST]; + stats->rx_missed_errors = s[OCELOT_STAT_DROP_TAIL]; + stats->rx_dropped = s[OCELOT_STAT_RX_RED_PRIO_0] + + s[OCELOT_STAT_RX_RED_PRIO_1] + + s[OCELOT_STAT_RX_RED_PRIO_2] + + s[OCELOT_STAT_RX_RED_PRIO_3] + + s[OCELOT_STAT_RX_RED_PRIO_4] + + s[OCELOT_STAT_RX_RED_PRIO_5] + + s[OCELOT_STAT_RX_RED_PRIO_6] + + s[OCELOT_STAT_RX_RED_PRIO_7] + + s[OCELOT_STAT_DROP_LOCAL] + + s[OCELOT_STAT_DROP_YELLOW_PRIO_0] + + s[OCELOT_STAT_DROP_YELLOW_PRIO_1] + + s[OCELOT_STAT_DROP_YELLOW_PRIO_2] + + s[OCELOT_STAT_DROP_YELLOW_PRIO_3] + + s[OCELOT_STAT_DROP_YELLOW_PRIO_4] + + s[OCELOT_STAT_DROP_YELLOW_PRIO_5] + + s[OCELOT_STAT_DROP_YELLOW_PRIO_6] + + s[OCELOT_STAT_DROP_YELLOW_PRIO_7] + + s[OCELOT_STAT_DROP_GREEN_PRIO_0] + + s[OCELOT_STAT_DROP_GREEN_PRIO_1] + + s[OCELOT_STAT_DROP_GREEN_PRIO_2] + + s[OCELOT_STAT_DROP_GREEN_PRIO_3] + + s[OCELOT_STAT_DROP_GREEN_PRIO_4] + + s[OCELOT_STAT_DROP_GREEN_PRIO_5] + + s[OCELOT_STAT_DROP_GREEN_PRIO_6] + + s[OCELOT_STAT_DROP_GREEN_PRIO_7]; + + /* Get Tx stats */ + stats->tx_bytes = s[OCELOT_STAT_TX_OCTETS]; + stats->tx_packets = s[OCELOT_STAT_TX_64] + + s[OCELOT_STAT_TX_65_127] + + s[OCELOT_STAT_TX_128_255] + + s[OCELOT_STAT_TX_256_511] + + s[OCELOT_STAT_TX_512_1023] + + s[OCELOT_STAT_TX_1024_1526] + + s[OCELOT_STAT_TX_1527_MAX]; + stats->tx_dropped = s[OCELOT_STAT_TX_DROPS] + + s[OCELOT_STAT_TX_AGED]; + stats->collisions = s[OCELOT_STAT_TX_COLLISION]; + + spin_unlock(&ocelot->stats_lock); +} +EXPORT_SYMBOL(ocelot_port_get_stats64); + +static int ocelot_prepare_stats_regions(struct ocelot *ocelot) +{ + struct ocelot_stats_region *region = NULL; + const struct ocelot_stat_layout *layout; + unsigned int last = 0; + int i; + + INIT_LIST_HEAD(&ocelot->stats_regions); + + layout = ocelot_get_stats_layout(ocelot); + + for (i = 0; i < OCELOT_NUM_STATS; i++) { + if (!layout[i].reg) + continue; + + if (region && layout[i].reg == last + 4) { + region->count++; + } else { + region = devm_kzalloc(ocelot->dev, sizeof(*region), + GFP_KERNEL); + if (!region) + return -ENOMEM; + + /* enum ocelot_stat must be kept sorted in the same + * order as layout[i].reg in order to have efficient + * bulking + */ + WARN_ON(last >= layout[i].reg); + + region->base = layout[i].reg; + region->count = 1; + list_add_tail(®ion->node, &ocelot->stats_regions); + } + + last = layout[i].reg; + } + + list_for_each_entry(region, &ocelot->stats_regions, node) { + region->buf = devm_kcalloc(ocelot->dev, region->count, + sizeof(*region->buf), GFP_KERNEL); + if (!region->buf) + return -ENOMEM; + } + + return 0; +} + +int ocelot_stats_init(struct ocelot *ocelot) +{ + char queue_name[32]; + int ret; + + ocelot->stats = devm_kcalloc(ocelot->dev, + ocelot->num_phys_ports * OCELOT_NUM_STATS, + sizeof(u64), GFP_KERNEL); + if (!ocelot->stats) + return -ENOMEM; + + snprintf(queue_name, sizeof(queue_name), "%s-stats", + dev_name(ocelot->dev)); + ocelot->stats_queue = create_singlethread_workqueue(queue_name); + if (!ocelot->stats_queue) + return -ENOMEM; + + spin_lock_init(&ocelot->stats_lock); + mutex_init(&ocelot->stat_view_lock); + + ret = ocelot_prepare_stats_regions(ocelot); + if (ret) { + destroy_workqueue(ocelot->stats_queue); + return ret; + } + + INIT_DELAYED_WORK(&ocelot->stats_work, ocelot_check_stats_work); + queue_delayed_work(ocelot->stats_queue, &ocelot->stats_work, + OCELOT_STATS_CHECK_DELAY); + + return 0; +} + +void ocelot_stats_deinit(struct ocelot *ocelot) +{ + cancel_delayed_work(&ocelot->stats_work); + destroy_workqueue(ocelot->stats_queue); +} + -- cgit v1.2.3