Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

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().
  ...

1 files changed, 302 insertions, 0 deletions

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 <linux/debugfs.h>
+#include <linux/ethtool.h>
+#include <linux/seq_file.h>
+#include <linux/types.h>
+
+#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;
+}