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, 445 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/gt/mock_engine.c b/drivers/gpu/drm/i915/gt/mock_engine.c
new file mode 100644
index 000000000..c0637bf79
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/mock_engine.c
@@ -0,0 +1,445 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2016 Intel Corporation
+ */
+
+#include "gem/i915_gem_context.h"
+#include "gt/intel_ring.h"
+
+#include "i915_drv.h"
+#include "intel_context.h"
+#include "intel_engine_pm.h"
+
+#include "mock_engine.h"
+#include "selftests/mock_request.h"
+
+static int mock_timeline_pin(struct intel_timeline *tl)
+{
+	int err;
+
+	if (WARN_ON(!i915_gem_object_trylock(tl->hwsp_ggtt->obj, NULL)))
+		return -EBUSY;
+
+	err = intel_timeline_pin_map(tl);
+	i915_gem_object_unlock(tl->hwsp_ggtt->obj);
+	if (err)
+		return err;
+
+	atomic_inc(&tl->pin_count);
+	return 0;
+}
+
+static void mock_timeline_unpin(struct intel_timeline *tl)
+{
+	GEM_BUG_ON(!atomic_read(&tl->pin_count));
+	atomic_dec(&tl->pin_count);
+}
+
+static struct i915_vma *create_ring_vma(struct i915_ggtt *ggtt, int size)
+{
+	struct i915_address_space *vm = &ggtt->vm;
+	struct drm_i915_private *i915 = vm->i915;
+	struct drm_i915_gem_object *obj;
+	struct i915_vma *vma;
+
+	obj = i915_gem_object_create_internal(i915, size);
+	if (IS_ERR(obj))
+		return ERR_CAST(obj);
+
+	vma = i915_vma_instance(obj, vm, NULL);
+	if (IS_ERR(vma))
+		goto err;
+
+	return vma;
+
+err:
+	i915_gem_object_put(obj);
+	return vma;
+}
+
+static struct intel_ring *mock_ring(struct intel_engine_cs *engine)
+{
+	const unsigned long sz = PAGE_SIZE;
+	struct intel_ring *ring;
+
+	ring = kzalloc(sizeof(*ring) + sz, GFP_KERNEL);
+	if (!ring)
+		return NULL;
+
+	kref_init(&ring->ref);
+	ring->size = sz;
+	ring->effective_size = sz;
+	ring->vaddr = (void *)(ring + 1);
+	atomic_set(&ring->pin_count, 1);
+
+	ring->vma = create_ring_vma(engine->gt->ggtt, PAGE_SIZE);
+	if (IS_ERR(ring->vma)) {
+		kfree(ring);
+		return NULL;
+	}
+
+	intel_ring_update_space(ring);
+
+	return ring;
+}
+
+static void mock_ring_free(struct intel_ring *ring)
+{
+	i915_vma_put(ring->vma);
+
+	kfree(ring);
+}
+
+static struct i915_request *first_request(struct mock_engine *engine)
+{
+	return list_first_entry_or_null(&engine->hw_queue,
+					struct i915_request,
+					mock.link);
+}
+
+static void advance(struct i915_request *request)
+{
+	list_del_init(&request->mock.link);
+	i915_request_mark_complete(request);
+	GEM_BUG_ON(!i915_request_completed(request));
+
+	intel_engine_signal_breadcrumbs(request->engine);
+}
+
+static void hw_delay_complete(struct timer_list *t)
+{
+	struct mock_engine *engine = from_timer(engine, t, hw_delay);
+	struct i915_request *request;
+	unsigned long flags;
+
+	spin_lock_irqsave(&engine->hw_lock, flags);
+
+	/* Timer fired, first request is complete */
+	request = first_request(engine);
+	if (request)
+		advance(request);
+
+	/*
+	 * Also immediately signal any subsequent 0-delay requests, but
+	 * requeue the timer for the next delayed request.
+	 */
+	while ((request = first_request(engine))) {
+		if (request->mock.delay) {
+			mod_timer(&engine->hw_delay,
+				  jiffies + request->mock.delay);
+			break;
+		}
+
+		advance(request);
+	}
+
+	spin_unlock_irqrestore(&engine->hw_lock, flags);
+}
+
+static void mock_context_unpin(struct intel_context *ce)
+{
+}
+
+static void mock_context_post_unpin(struct intel_context *ce)
+{
+	i915_vma_unpin(ce->ring->vma);
+}
+
+static void mock_context_destroy(struct kref *ref)
+{
+	struct intel_context *ce = container_of(ref, typeof(*ce), ref);
+
+	GEM_BUG_ON(intel_context_is_pinned(ce));
+
+	if (test_bit(CONTEXT_ALLOC_BIT, &ce->flags)) {
+		mock_ring_free(ce->ring);
+		mock_timeline_unpin(ce->timeline);
+	}
+
+	intel_context_fini(ce);
+	intel_context_free(ce);
+}
+
+static int mock_context_alloc(struct intel_context *ce)
+{
+	int err;
+
+	ce->ring = mock_ring(ce->engine);
+	if (!ce->ring)
+		return -ENOMEM;
+
+	ce->timeline = intel_timeline_create(ce->engine->gt);
+	if (IS_ERR(ce->timeline)) {
+		kfree(ce->engine);
+		return PTR_ERR(ce->timeline);
+	}
+
+	err = mock_timeline_pin(ce->timeline);
+	if (err) {
+		intel_timeline_put(ce->timeline);
+		ce->timeline = NULL;
+		return err;
+	}
+
+	return 0;
+}
+
+static int mock_context_pre_pin(struct intel_context *ce,
+				struct i915_gem_ww_ctx *ww, void **unused)
+{
+	return i915_vma_pin_ww(ce->ring->vma, ww, 0, 0, PIN_GLOBAL | PIN_HIGH);
+}
+
+static int mock_context_pin(struct intel_context *ce, void *unused)
+{
+	return 0;
+}
+
+static void mock_context_reset(struct intel_context *ce)
+{
+}
+
+static const struct intel_context_ops mock_context_ops = {
+	.alloc = mock_context_alloc,
+
+	.pre_pin = mock_context_pre_pin,
+	.pin = mock_context_pin,
+	.unpin = mock_context_unpin,
+	.post_unpin = mock_context_post_unpin,
+
+	.enter = intel_context_enter_engine,
+	.exit = intel_context_exit_engine,
+
+	.reset = mock_context_reset,
+	.destroy = mock_context_destroy,
+};
+
+static int mock_request_alloc(struct i915_request *request)
+{
+	INIT_LIST_HEAD(&request->mock.link);
+	request->mock.delay = 0;
+
+	return 0;
+}
+
+static int mock_emit_flush(struct i915_request *request,
+			   unsigned int flags)
+{
+	return 0;
+}
+
+static u32 *mock_emit_breadcrumb(struct i915_request *request, u32 *cs)
+{
+	return cs;
+}
+
+static void mock_submit_request(struct i915_request *request)
+{
+	struct mock_engine *engine =
+		container_of(request->engine, typeof(*engine), base);
+	unsigned long flags;
+
+	i915_request_submit(request);
+
+	spin_lock_irqsave(&engine->hw_lock, flags);
+	list_add_tail(&request->mock.link, &engine->hw_queue);
+	if (list_is_first(&request->mock.link, &engine->hw_queue)) {
+		if (request->mock.delay)
+			mod_timer(&engine->hw_delay,
+				  jiffies + request->mock.delay);
+		else
+			advance(request);
+	}
+	spin_unlock_irqrestore(&engine->hw_lock, flags);
+}
+
+static void mock_add_to_engine(struct i915_request *rq)
+{
+	lockdep_assert_held(&rq->engine->sched_engine->lock);
+	list_move_tail(&rq->sched.link, &rq->engine->sched_engine->requests);
+}
+
+static void mock_remove_from_engine(struct i915_request *rq)
+{
+	struct intel_engine_cs *engine, *locked;
+
+	/*
+	 * Virtual engines complicate acquiring the engine timeline lock,
+	 * as their rq->engine pointer is not stable until under that
+	 * engine lock. The simple ploy we use is to take the lock then
+	 * check that the rq still belongs to the newly locked engine.
+	 */
+
+	locked = READ_ONCE(rq->engine);
+	spin_lock_irq(&locked->sched_engine->lock);
+	while (unlikely(locked != (engine = READ_ONCE(rq->engine)))) {
+		spin_unlock(&locked->sched_engine->lock);
+		spin_lock(&engine->sched_engine->lock);
+		locked = engine;
+	}
+	list_del_init(&rq->sched.link);
+	spin_unlock_irq(&locked->sched_engine->lock);
+}
+
+static void mock_reset_prepare(struct intel_engine_cs *engine)
+{
+}
+
+static void mock_reset_rewind(struct intel_engine_cs *engine, bool stalled)
+{
+	GEM_BUG_ON(stalled);
+}
+
+static void mock_reset_cancel(struct intel_engine_cs *engine)
+{
+	struct mock_engine *mock =
+		container_of(engine, typeof(*mock), base);
+	struct i915_request *rq;
+	unsigned long flags;
+
+	del_timer_sync(&mock->hw_delay);
+
+	spin_lock_irqsave(&engine->sched_engine->lock, flags);
+
+	/* Mark all submitted requests as skipped. */
+	list_for_each_entry(rq, &engine->sched_engine->requests, sched.link)
+		i915_request_put(i915_request_mark_eio(rq));
+	intel_engine_signal_breadcrumbs(engine);
+
+	/* Cancel and submit all pending requests. */
+	list_for_each_entry(rq, &mock->hw_queue, mock.link) {
+		if (i915_request_mark_eio(rq)) {
+			__i915_request_submit(rq);
+			i915_request_put(rq);
+		}
+	}
+	INIT_LIST_HEAD(&mock->hw_queue);
+
+	spin_unlock_irqrestore(&engine->sched_engine->lock, flags);
+}
+
+static void mock_reset_finish(struct intel_engine_cs *engine)
+{
+}
+
+static void mock_engine_release(struct intel_engine_cs *engine)
+{
+	struct mock_engine *mock =
+		container_of(engine, typeof(*mock), base);
+
+	GEM_BUG_ON(timer_pending(&mock->hw_delay));
+
+	i915_sched_engine_put(engine->sched_engine);
+	intel_breadcrumbs_put(engine->breadcrumbs);
+
+	intel_context_unpin(engine->kernel_context);
+	intel_context_put(engine->kernel_context);
+
+	intel_engine_fini_retire(engine);
+}
+
+struct intel_engine_cs *mock_engine(struct drm_i915_private *i915,
+				    const char *name,
+				    int id)
+{
+	struct mock_engine *engine;
+
+	GEM_BUG_ON(id >= I915_NUM_ENGINES);
+	GEM_BUG_ON(!to_gt(i915)->uncore);
+
+	engine = kzalloc(sizeof(*engine) + PAGE_SIZE, GFP_KERNEL);
+	if (!engine)
+		return NULL;
+
+	/* minimal engine setup for requests */
+	engine->base.i915 = i915;
+	engine->base.gt = to_gt(i915);
+	engine->base.uncore = to_gt(i915)->uncore;
+	snprintf(engine->base.name, sizeof(engine->base.name), "%s", name);
+	engine->base.id = id;
+	engine->base.mask = BIT(id);
+	engine->base.legacy_idx = INVALID_ENGINE;
+	engine->base.instance = id;
+	engine->base.status_page.addr = (void *)(engine + 1);
+
+	engine->base.cops = &mock_context_ops;
+	engine->base.request_alloc = mock_request_alloc;
+	engine->base.emit_flush = mock_emit_flush;
+	engine->base.emit_fini_breadcrumb = mock_emit_breadcrumb;
+	engine->base.submit_request = mock_submit_request;
+	engine->base.add_active_request = mock_add_to_engine;
+	engine->base.remove_active_request = mock_remove_from_engine;
+
+	engine->base.reset.prepare = mock_reset_prepare;
+	engine->base.reset.rewind = mock_reset_rewind;
+	engine->base.reset.cancel = mock_reset_cancel;
+	engine->base.reset.finish = mock_reset_finish;
+
+	engine->base.release = mock_engine_release;
+
+	to_gt(i915)->engine[id] = &engine->base;
+	to_gt(i915)->engine_class[0][id] = &engine->base;
+
+	/* fake hw queue */
+	spin_lock_init(&engine->hw_lock);
+	timer_setup(&engine->hw_delay, hw_delay_complete, 0);
+	INIT_LIST_HEAD(&engine->hw_queue);
+
+	intel_engine_add_user(&engine->base);
+
+	return &engine->base;
+}
+
+int mock_engine_init(struct intel_engine_cs *engine)
+{
+	struct intel_context *ce;
+
+	INIT_LIST_HEAD(&engine->pinned_contexts_list);
+
+	engine->sched_engine = i915_sched_engine_create(ENGINE_MOCK);
+	if (!engine->sched_engine)
+		return -ENOMEM;
+	engine->sched_engine->private_data = engine;
+
+	intel_engine_init_execlists(engine);
+	intel_engine_init__pm(engine);
+	intel_engine_init_retire(engine);
+
+	engine->breadcrumbs = intel_breadcrumbs_create(NULL);
+	if (!engine->breadcrumbs)
+		goto err_schedule;
+
+	ce = create_kernel_context(engine);
+	if (IS_ERR(ce))
+		goto err_breadcrumbs;
+
+	/* We insist the kernel context is using the status_page */
+	engine->status_page.vma = ce->timeline->hwsp_ggtt;
+
+	engine->kernel_context = ce;
+	return 0;
+
+err_breadcrumbs:
+	intel_breadcrumbs_put(engine->breadcrumbs);
+err_schedule:
+	i915_sched_engine_put(engine->sched_engine);
+	return -ENOMEM;
+}
+
+void mock_engine_flush(struct intel_engine_cs *engine)
+{
+	struct mock_engine *mock =
+		container_of(engine, typeof(*mock), base);
+	struct i915_request *request, *rn;
+
+	del_timer_sync(&mock->hw_delay);
+
+	spin_lock_irq(&mock->hw_lock);
+	list_for_each_entry_safe(request, rn, &mock->hw_queue, mock.link)
+		advance(request);
+	spin_unlock_irq(&mock->hw_lock);
+}
+
+void mock_engine_reset(struct intel_engine_cs *engine)
+{
+}