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, 295 insertions, 0 deletions

diff --git a/drivers/misc/genwqe/card_sysfs.c b/drivers/misc/genwqe/card_sysfs.c
new file mode 100644
index 000000000..b2f115602
--- /dev/null
+++ b/drivers/misc/genwqe/card_sysfs.c
@@ -0,0 +1,295 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * IBM Accelerator Family 'GenWQE'
+ *
+ * (C) Copyright IBM Corp. 2013
+ *
+ * Author: Frank Haverkamp <haver@linux.vnet.ibm.com>
+ * Author: Joerg-Stephan Vogt <jsvogt@de.ibm.com>
+ * Author: Michael Jung <mijung@gmx.net>
+ * Author: Michael Ruettger <michael@ibmra.de>
+ */
+
+/*
+ * Sysfs interfaces for the GenWQE card. There are attributes to query
+ * the version of the bitstream as well as some for the driver. For
+ * debugging, please also see the debugfs interfaces of this driver.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/string.h>
+#include <linux/fs.h>
+#include <linux/sysfs.h>
+#include <linux/ctype.h>
+#include <linux/device.h>
+
+#include "card_base.h"
+#include "card_ddcb.h"
+
+static const char * const genwqe_types[] = {
+	[GENWQE_TYPE_ALTERA_230] = "GenWQE4-230",
+	[GENWQE_TYPE_ALTERA_530] = "GenWQE4-530",
+	[GENWQE_TYPE_ALTERA_A4]  = "GenWQE5-A4",
+	[GENWQE_TYPE_ALTERA_A7]  = "GenWQE5-A7",
+};
+
+static ssize_t status_show(struct device *dev, struct device_attribute *attr,
+			   char *buf)
+{
+	struct genwqe_dev *cd = dev_get_drvdata(dev);
+	const char *cs[GENWQE_CARD_STATE_MAX] = { "unused", "used", "error" };
+
+	return sprintf(buf, "%s\n", cs[cd->card_state]);
+}
+static DEVICE_ATTR_RO(status);
+
+static ssize_t appid_show(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	char app_name[5];
+	struct genwqe_dev *cd = dev_get_drvdata(dev);
+
+	genwqe_read_app_id(cd, app_name, sizeof(app_name));
+	return sprintf(buf, "%s\n", app_name);
+}
+static DEVICE_ATTR_RO(appid);
+
+static ssize_t version_show(struct device *dev, struct device_attribute *attr,
+			    char *buf)
+{
+	u64 slu_id, app_id;
+	struct genwqe_dev *cd = dev_get_drvdata(dev);
+
+	slu_id = __genwqe_readq(cd, IO_SLU_UNITCFG);
+	app_id = __genwqe_readq(cd, IO_APP_UNITCFG);
+
+	return sprintf(buf, "%016llx.%016llx\n", slu_id, app_id);
+}
+static DEVICE_ATTR_RO(version);
+
+static ssize_t type_show(struct device *dev, struct device_attribute *attr,
+			 char *buf)
+{
+	u8 card_type;
+	struct genwqe_dev *cd = dev_get_drvdata(dev);
+
+	card_type = genwqe_card_type(cd);
+	return sprintf(buf, "%s\n", (card_type >= ARRAY_SIZE(genwqe_types)) ?
+		       "invalid" : genwqe_types[card_type]);
+}
+static DEVICE_ATTR_RO(type);
+
+static ssize_t tempsens_show(struct device *dev, struct device_attribute *attr,
+			     char *buf)
+{
+	u64 tempsens;
+	struct genwqe_dev *cd = dev_get_drvdata(dev);
+
+	tempsens = __genwqe_readq(cd, IO_SLU_TEMPERATURE_SENSOR);
+	return sprintf(buf, "%016llx\n", tempsens);
+}
+static DEVICE_ATTR_RO(tempsens);
+
+static ssize_t freerunning_timer_show(struct device *dev,
+				      struct device_attribute *attr,
+				      char *buf)
+{
+	u64 t;
+	struct genwqe_dev *cd = dev_get_drvdata(dev);
+
+	t = __genwqe_readq(cd, IO_SLC_FREE_RUNNING_TIMER);
+	return sprintf(buf, "%016llx\n", t);
+}
+static DEVICE_ATTR_RO(freerunning_timer);
+
+static ssize_t queue_working_time_show(struct device *dev,
+				       struct device_attribute *attr,
+				       char *buf)
+{
+	u64 t;
+	struct genwqe_dev *cd = dev_get_drvdata(dev);
+
+	t = __genwqe_readq(cd, IO_SLC_QUEUE_WTIME);
+	return sprintf(buf, "%016llx\n", t);
+}
+static DEVICE_ATTR_RO(queue_working_time);
+
+static ssize_t base_clock_show(struct device *dev,
+			       struct device_attribute *attr,
+			       char *buf)
+{
+	u64 base_clock;
+	struct genwqe_dev *cd = dev_get_drvdata(dev);
+
+	base_clock = genwqe_base_clock_frequency(cd);
+	return sprintf(buf, "%lld\n", base_clock);
+}
+static DEVICE_ATTR_RO(base_clock);
+
+/*
+ * curr_bitstream_show() - Show the current bitstream id
+ *
+ * There is a bug in some old versions of the CPLD which selects the
+ * bitstream, which causes the IO_SLU_BITSTREAM register to report
+ * unreliable data in very rare cases. This makes this sysfs
+ * unreliable up to the point were a new CPLD version is being used.
+ *
+ * Unfortunately there is no automatic way yet to query the CPLD
+ * version, such that you need to manually ensure via programming
+ * tools that you have a recent version of the CPLD software.
+ *
+ * The proposed circumvention is to use a special recovery bitstream
+ * on the backup partition (0) to identify problems while loading the
+ * image.
+ */
+static ssize_t curr_bitstream_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	int curr_bitstream;
+	struct genwqe_dev *cd = dev_get_drvdata(dev);
+
+	curr_bitstream = __genwqe_readq(cd, IO_SLU_BITSTREAM) & 0x1;
+	return sprintf(buf, "%d\n", curr_bitstream);
+}
+static DEVICE_ATTR_RO(curr_bitstream);
+
+/*
+ * next_bitstream_show() - Show the next activated bitstream
+ *
+ * IO_SLC_CFGREG_SOFTRESET: This register can only be accessed by the PF.
+ */
+static ssize_t next_bitstream_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	int next_bitstream;
+	struct genwqe_dev *cd = dev_get_drvdata(dev);
+
+	switch ((cd->softreset & 0xc) >> 2) {
+	case 0x2:
+		next_bitstream =  0;
+		break;
+	case 0x3:
+		next_bitstream =  1;
+		break;
+	default:
+		next_bitstream = -1;
+		break;		/* error */
+	}
+	return sprintf(buf, "%d\n", next_bitstream);
+}
+
+static ssize_t next_bitstream_store(struct device *dev,
+				    struct device_attribute *attr,
+				    const char *buf, size_t count)
+{
+	int partition;
+	struct genwqe_dev *cd = dev_get_drvdata(dev);
+
+	if (kstrtoint(buf, 0, &partition) < 0)
+		return -EINVAL;
+
+	switch (partition) {
+	case 0x0:
+		cd->softreset = 0x78;
+		break;
+	case 0x1:
+		cd->softreset = 0x7c;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	__genwqe_writeq(cd, IO_SLC_CFGREG_SOFTRESET, cd->softreset);
+	return count;
+}
+static DEVICE_ATTR_RW(next_bitstream);
+
+static ssize_t reload_bitstream_store(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	int reload;
+	struct genwqe_dev *cd = dev_get_drvdata(dev);
+
+	if (kstrtoint(buf, 0, &reload) < 0)
+		return -EINVAL;
+
+	if (reload == 0x1) {
+		if (cd->card_state == GENWQE_CARD_UNUSED ||
+		    cd->card_state == GENWQE_CARD_USED)
+			cd->card_state = GENWQE_CARD_RELOAD_BITSTREAM;
+		else
+			return -EIO;
+	} else {
+		return -EINVAL;
+	}
+
+	return count;
+}
+static DEVICE_ATTR_WO(reload_bitstream);
+
+/*
+ * Create device_attribute structures / params: name, mode, show, store
+ * additional flag if valid in VF
+ */
+static struct attribute *genwqe_attributes[] = {
+	&dev_attr_tempsens.attr,
+	&dev_attr_next_bitstream.attr,
+	&dev_attr_curr_bitstream.attr,
+	&dev_attr_base_clock.attr,
+	&dev_attr_type.attr,
+	&dev_attr_version.attr,
+	&dev_attr_appid.attr,
+	&dev_attr_status.attr,
+	&dev_attr_freerunning_timer.attr,
+	&dev_attr_queue_working_time.attr,
+	&dev_attr_reload_bitstream.attr,
+	NULL,
+};
+
+static struct attribute *genwqe_normal_attributes[] = {
+	&dev_attr_type.attr,
+	&dev_attr_version.attr,
+	&dev_attr_appid.attr,
+	&dev_attr_status.attr,
+	&dev_attr_freerunning_timer.attr,
+	&dev_attr_queue_working_time.attr,
+	NULL,
+};
+
+/*
+ * genwqe_is_visible() - Determine if sysfs attribute should be visible or not
+ *
+ * VFs have restricted mmio capabilities, so not all sysfs entries
+ * are allowed in VFs.
+ */
+static umode_t genwqe_is_visible(struct kobject *kobj,
+				 struct attribute *attr, int n)
+{
+	unsigned int j;
+	struct device *dev = kobj_to_dev(kobj);
+	struct genwqe_dev *cd = dev_get_drvdata(dev);
+	umode_t mode = attr->mode;
+
+	if (genwqe_is_privileged(cd))
+		return mode;
+
+	for (j = 0; genwqe_normal_attributes[j] != NULL;  j++)
+		if (genwqe_normal_attributes[j] == attr)
+			return mode;
+
+	return 0;
+}
+
+static struct attribute_group genwqe_attribute_group = {
+	.is_visible = genwqe_is_visible,
+	.attrs      = genwqe_attributes,
+};
+
+const struct attribute_group *genwqe_attribute_groups[] = {
+	&genwqe_attribute_group,
+	NULL,
+};