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/qualcomm/qca_debug.c | 302 ++++++++++++++++++++++++++++++ 1 file changed, 302 insertions(+) create mode 100644 drivers/net/ethernet/qualcomm/qca_debug.c (limited to 'drivers/net/ethernet/qualcomm/qca_debug.c') diff --git a/drivers/net/ethernet/qualcomm/qca_debug.c b/drivers/net/ethernet/qualcomm/qca_debug.c new file mode 100644 index 000000000..f62c39544 --- /dev/null +++ b/drivers/net/ethernet/qualcomm/qca_debug.c @@ -0,0 +1,302 @@ +/* + * Copyright (c) 2011, 2012, Qualcomm Atheros Communications Inc. + * Copyright (c) 2014, I2SE GmbH + * + * Permission to use, copy, modify, and/or distribute this software + * for any purpose with or without fee is hereby granted, provided + * that the above copyright notice and this permission notice appear + * in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL + * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL + * THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM + * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, + * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* This file contains debugging routines for use in the QCA7K driver. + */ + +#include +#include +#include +#include + +#include "qca_7k.h" +#include "qca_debug.h" + +#define QCASPI_MAX_REGS 0x20 + +static const u16 qcaspi_spi_regs[] = { + SPI_REG_BFR_SIZE, + SPI_REG_WRBUF_SPC_AVA, + SPI_REG_RDBUF_BYTE_AVA, + SPI_REG_SPI_CONFIG, + SPI_REG_SPI_STATUS, + SPI_REG_INTR_CAUSE, + SPI_REG_INTR_ENABLE, + SPI_REG_RDBUF_WATERMARK, + SPI_REG_WRBUF_WATERMARK, + SPI_REG_SIGNATURE, + SPI_REG_ACTION_CTRL +}; + +/* The order of these strings must match the order of the fields in + * struct qcaspi_stats + * See qca_spi.h + */ +static const char qcaspi_gstrings_stats[][ETH_GSTRING_LEN] = { + "Triggered resets", + "Device resets", + "Reset timeouts", + "Read errors", + "Write errors", + "Read buffer errors", + "Write buffer errors", + "Out of memory", + "Write buffer misses", + "Transmit ring full", + "SPI errors", + "Write verify errors", + "Buffer available errors", + "Bad signature", +}; + +#ifdef CONFIG_DEBUG_FS + +static int +qcaspi_info_show(struct seq_file *s, void *what) +{ + struct qcaspi *qca = s->private; + + seq_printf(s, "RX buffer size : %lu\n", + (unsigned long)qca->buffer_size); + + seq_puts(s, "TX ring state : "); + + if (qca->txr.skb[qca->txr.head] == NULL) + seq_puts(s, "empty"); + else if (qca->txr.skb[qca->txr.tail]) + seq_puts(s, "full"); + else + seq_puts(s, "in use"); + + seq_puts(s, "\n"); + + seq_printf(s, "TX ring size : %u\n", + qca->txr.size); + + seq_printf(s, "Sync state : %u (", + (unsigned int)qca->sync); + switch (qca->sync) { + case QCASPI_SYNC_UNKNOWN: + seq_puts(s, "QCASPI_SYNC_UNKNOWN"); + break; + case QCASPI_SYNC_RESET: + seq_puts(s, "QCASPI_SYNC_RESET"); + break; + case QCASPI_SYNC_READY: + seq_puts(s, "QCASPI_SYNC_READY"); + break; + default: + seq_puts(s, "INVALID"); + break; + } + seq_puts(s, ")\n"); + + seq_printf(s, "IRQ : %d\n", + qca->spi_dev->irq); + seq_printf(s, "INTR REQ : %u\n", + qca->intr_req); + seq_printf(s, "INTR SVC : %u\n", + qca->intr_svc); + + seq_printf(s, "SPI max speed : %lu\n", + (unsigned long)qca->spi_dev->max_speed_hz); + seq_printf(s, "SPI mode : %x\n", + qca->spi_dev->mode); + seq_printf(s, "SPI chip select : %u\n", + (unsigned int)qca->spi_dev->chip_select); + seq_printf(s, "SPI legacy mode : %u\n", + (unsigned int)qca->legacy_mode); + seq_printf(s, "SPI burst length : %u\n", + (unsigned int)qca->burst_len); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(qcaspi_info); + +void +qcaspi_init_device_debugfs(struct qcaspi *qca) +{ + qca->device_root = debugfs_create_dir(dev_name(&qca->net_dev->dev), + NULL); + + debugfs_create_file("info", S_IFREG | 0444, qca->device_root, qca, + &qcaspi_info_fops); +} + +void +qcaspi_remove_device_debugfs(struct qcaspi *qca) +{ + debugfs_remove_recursive(qca->device_root); +} + +#else /* CONFIG_DEBUG_FS */ + +void +qcaspi_init_device_debugfs(struct qcaspi *qca) +{ +} + +void +qcaspi_remove_device_debugfs(struct qcaspi *qca) +{ +} + +#endif + +static void +qcaspi_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *p) +{ + struct qcaspi *qca = netdev_priv(dev); + + strscpy(p->driver, QCASPI_DRV_NAME, sizeof(p->driver)); + strscpy(p->version, QCASPI_DRV_VERSION, sizeof(p->version)); + strscpy(p->fw_version, "QCA7000", sizeof(p->fw_version)); + strscpy(p->bus_info, dev_name(&qca->spi_dev->dev), + sizeof(p->bus_info)); +} + +static int +qcaspi_get_link_ksettings(struct net_device *dev, + struct ethtool_link_ksettings *cmd) +{ + ethtool_link_ksettings_zero_link_mode(cmd, supported); + ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half); + + cmd->base.speed = SPEED_10; + cmd->base.duplex = DUPLEX_HALF; + cmd->base.port = PORT_OTHER; + cmd->base.autoneg = AUTONEG_DISABLE; + + return 0; +} + +static void +qcaspi_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *estats, u64 *data) +{ + struct qcaspi *qca = netdev_priv(dev); + struct qcaspi_stats *st = &qca->stats; + + memcpy(data, st, ARRAY_SIZE(qcaspi_gstrings_stats) * sizeof(u64)); +} + +static void +qcaspi_get_strings(struct net_device *dev, u32 stringset, u8 *buf) +{ + switch (stringset) { + case ETH_SS_STATS: + memcpy(buf, &qcaspi_gstrings_stats, + sizeof(qcaspi_gstrings_stats)); + break; + default: + WARN_ON(1); + break; + } +} + +static int +qcaspi_get_sset_count(struct net_device *dev, int sset) +{ + switch (sset) { + case ETH_SS_STATS: + return ARRAY_SIZE(qcaspi_gstrings_stats); + default: + return -EINVAL; + } +} + +static int +qcaspi_get_regs_len(struct net_device *dev) +{ + return sizeof(u32) * QCASPI_MAX_REGS; +} + +static void +qcaspi_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *p) +{ + struct qcaspi *qca = netdev_priv(dev); + u32 *regs_buff = p; + unsigned int i; + + regs->version = 1; + memset(regs_buff, 0, sizeof(u32) * QCASPI_MAX_REGS); + + for (i = 0; i < ARRAY_SIZE(qcaspi_spi_regs); i++) { + u16 offset, value; + + qcaspi_read_register(qca, qcaspi_spi_regs[i], &value); + offset = qcaspi_spi_regs[i] >> 8; + regs_buff[offset] = value; + } +} + +static void +qcaspi_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ring, + struct kernel_ethtool_ringparam *kernel_ring, + struct netlink_ext_ack *extack) +{ + struct qcaspi *qca = netdev_priv(dev); + + ring->rx_max_pending = 4; + ring->tx_max_pending = TX_RING_MAX_LEN; + ring->rx_pending = 4; + ring->tx_pending = qca->txr.count; +} + +static int +qcaspi_set_ringparam(struct net_device *dev, struct ethtool_ringparam *ring, + struct kernel_ethtool_ringparam *kernel_ring, + struct netlink_ext_ack *extack) +{ + const struct net_device_ops *ops = dev->netdev_ops; + struct qcaspi *qca = netdev_priv(dev); + + if ((ring->rx_pending) || + (ring->rx_mini_pending) || + (ring->rx_jumbo_pending)) + return -EINVAL; + + if (netif_running(dev)) + ops->ndo_stop(dev); + + qca->txr.count = max_t(u32, ring->tx_pending, TX_RING_MIN_LEN); + qca->txr.count = min_t(u16, qca->txr.count, TX_RING_MAX_LEN); + + if (netif_running(dev)) + ops->ndo_open(dev); + + return 0; +} + +static const struct ethtool_ops qcaspi_ethtool_ops = { + .get_drvinfo = qcaspi_get_drvinfo, + .get_link = ethtool_op_get_link, + .get_ethtool_stats = qcaspi_get_ethtool_stats, + .get_strings = qcaspi_get_strings, + .get_sset_count = qcaspi_get_sset_count, + .get_regs_len = qcaspi_get_regs_len, + .get_regs = qcaspi_get_regs, + .get_ringparam = qcaspi_get_ringparam, + .set_ringparam = qcaspi_set_ringparam, + .get_link_ksettings = qcaspi_get_link_ksettings, +}; + +void qcaspi_set_ethtool_ops(struct net_device *dev) +{ + dev->ethtool_ops = &qcaspi_ethtool_ops; +} -- cgit v1.2.3