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, 278 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/core/gpuobj.c b/drivers/gpu/drm/nouveau/nvkm/core/gpuobj.c
new file mode 100644
index 000000000..d6de2b3ed
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/core/gpuobj.c
@@ -0,0 +1,278 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include <core/gpuobj.h>
+#include <core/engine.h>
+
+#include <subdev/instmem.h>
+#include <subdev/bar.h>
+#include <subdev/mmu.h>
+
+/* fast-path, where backend is able to provide direct pointer to memory */
+static u32
+nvkm_gpuobj_rd32_fast(struct nvkm_gpuobj *gpuobj, u32 offset)
+{
+	return ioread32_native(gpuobj->map + offset);
+}
+
+static void
+nvkm_gpuobj_wr32_fast(struct nvkm_gpuobj *gpuobj, u32 offset, u32 data)
+{
+	iowrite32_native(data, gpuobj->map + offset);
+}
+
+/* accessor functions for gpuobjs allocated directly from instmem */
+static int
+nvkm_gpuobj_heap_map(struct nvkm_gpuobj *gpuobj, u64 offset,
+		     struct nvkm_vmm *vmm, struct nvkm_vma *vma,
+		     void *argv, u32 argc)
+{
+	return nvkm_memory_map(gpuobj->memory, offset, vmm, vma, argv, argc);
+}
+
+static u32
+nvkm_gpuobj_heap_rd32(struct nvkm_gpuobj *gpuobj, u32 offset)
+{
+	return nvkm_ro32(gpuobj->memory, offset);
+}
+
+static void
+nvkm_gpuobj_heap_wr32(struct nvkm_gpuobj *gpuobj, u32 offset, u32 data)
+{
+	nvkm_wo32(gpuobj->memory, offset, data);
+}
+
+static const struct nvkm_gpuobj_func nvkm_gpuobj_heap;
+static void
+nvkm_gpuobj_heap_release(struct nvkm_gpuobj *gpuobj)
+{
+	gpuobj->func = &nvkm_gpuobj_heap;
+	nvkm_done(gpuobj->memory);
+}
+
+static const struct nvkm_gpuobj_func
+nvkm_gpuobj_heap_fast = {
+	.release = nvkm_gpuobj_heap_release,
+	.rd32 = nvkm_gpuobj_rd32_fast,
+	.wr32 = nvkm_gpuobj_wr32_fast,
+	.map = nvkm_gpuobj_heap_map,
+};
+
+static const struct nvkm_gpuobj_func
+nvkm_gpuobj_heap_slow = {
+	.release = nvkm_gpuobj_heap_release,
+	.rd32 = nvkm_gpuobj_heap_rd32,
+	.wr32 = nvkm_gpuobj_heap_wr32,
+	.map = nvkm_gpuobj_heap_map,
+};
+
+static void *
+nvkm_gpuobj_heap_acquire(struct nvkm_gpuobj *gpuobj)
+{
+	gpuobj->map = nvkm_kmap(gpuobj->memory);
+	if (likely(gpuobj->map))
+		gpuobj->func = &nvkm_gpuobj_heap_fast;
+	else
+		gpuobj->func = &nvkm_gpuobj_heap_slow;
+	return gpuobj->map;
+}
+
+static const struct nvkm_gpuobj_func
+nvkm_gpuobj_heap = {
+	.acquire = nvkm_gpuobj_heap_acquire,
+	.map = nvkm_gpuobj_heap_map,
+};
+
+/* accessor functions for gpuobjs sub-allocated from a parent gpuobj */
+static int
+nvkm_gpuobj_map(struct nvkm_gpuobj *gpuobj, u64 offset,
+		struct nvkm_vmm *vmm, struct nvkm_vma *vma,
+		void *argv, u32 argc)
+{
+	return nvkm_memory_map(gpuobj->parent, gpuobj->node->offset + offset,
+			       vmm, vma, argv, argc);
+}
+
+static u32
+nvkm_gpuobj_rd32(struct nvkm_gpuobj *gpuobj, u32 offset)
+{
+	return nvkm_ro32(gpuobj->parent, gpuobj->node->offset + offset);
+}
+
+static void
+nvkm_gpuobj_wr32(struct nvkm_gpuobj *gpuobj, u32 offset, u32 data)
+{
+	nvkm_wo32(gpuobj->parent, gpuobj->node->offset + offset, data);
+}
+
+static const struct nvkm_gpuobj_func nvkm_gpuobj_func;
+static void
+nvkm_gpuobj_release(struct nvkm_gpuobj *gpuobj)
+{
+	gpuobj->func = &nvkm_gpuobj_func;
+	nvkm_done(gpuobj->parent);
+}
+
+static const struct nvkm_gpuobj_func
+nvkm_gpuobj_fast = {
+	.release = nvkm_gpuobj_release,
+	.rd32 = nvkm_gpuobj_rd32_fast,
+	.wr32 = nvkm_gpuobj_wr32_fast,
+	.map = nvkm_gpuobj_map,
+};
+
+static const struct nvkm_gpuobj_func
+nvkm_gpuobj_slow = {
+	.release = nvkm_gpuobj_release,
+	.rd32 = nvkm_gpuobj_rd32,
+	.wr32 = nvkm_gpuobj_wr32,
+	.map = nvkm_gpuobj_map,
+};
+
+static void *
+nvkm_gpuobj_acquire(struct nvkm_gpuobj *gpuobj)
+{
+	gpuobj->map = nvkm_kmap(gpuobj->parent);
+	if (likely(gpuobj->map)) {
+		gpuobj->map  = (u8 *)gpuobj->map + gpuobj->node->offset;
+		gpuobj->func = &nvkm_gpuobj_fast;
+	} else {
+		gpuobj->func = &nvkm_gpuobj_slow;
+	}
+	return gpuobj->map;
+}
+
+static const struct nvkm_gpuobj_func
+nvkm_gpuobj_func = {
+	.acquire = nvkm_gpuobj_acquire,
+	.map = nvkm_gpuobj_map,
+};
+
+static int
+nvkm_gpuobj_ctor(struct nvkm_device *device, u32 size, int align, bool zero,
+		 struct nvkm_gpuobj *parent, struct nvkm_gpuobj *gpuobj)
+{
+	u32 offset;
+	int ret;
+
+	if (parent) {
+		if (align >= 0) {
+			ret = nvkm_mm_head(&parent->heap, 0, 1, size, size,
+					   max(align, 1), &gpuobj->node);
+		} else {
+			ret = nvkm_mm_tail(&parent->heap, 0, 1, size, size,
+					   -align, &gpuobj->node);
+		}
+		if (ret)
+			return ret;
+
+		gpuobj->parent = parent;
+		gpuobj->func = &nvkm_gpuobj_func;
+		gpuobj->addr = parent->addr + gpuobj->node->offset;
+		gpuobj->size = gpuobj->node->length;
+
+		if (zero) {
+			nvkm_kmap(gpuobj);
+			for (offset = 0; offset < gpuobj->size; offset += 4)
+				nvkm_wo32(gpuobj, offset, 0x00000000);
+			nvkm_done(gpuobj);
+		}
+	} else {
+		ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, size,
+				      abs(align), zero, &gpuobj->memory);
+		if (ret)
+			return ret;
+
+		gpuobj->func = &nvkm_gpuobj_heap;
+		gpuobj->addr = nvkm_memory_addr(gpuobj->memory);
+		gpuobj->size = nvkm_memory_size(gpuobj->memory);
+	}
+
+	return nvkm_mm_init(&gpuobj->heap, 0, 0, gpuobj->size, 1);
+}
+
+void
+nvkm_gpuobj_del(struct nvkm_gpuobj **pgpuobj)
+{
+	struct nvkm_gpuobj *gpuobj = *pgpuobj;
+	if (gpuobj) {
+		if (gpuobj->parent)
+			nvkm_mm_free(&gpuobj->parent->heap, &gpuobj->node);
+		nvkm_mm_fini(&gpuobj->heap);
+		nvkm_memory_unref(&gpuobj->memory);
+		kfree(*pgpuobj);
+		*pgpuobj = NULL;
+	}
+}
+
+int
+nvkm_gpuobj_new(struct nvkm_device *device, u32 size, int align, bool zero,
+		struct nvkm_gpuobj *parent, struct nvkm_gpuobj **pgpuobj)
+{
+	struct nvkm_gpuobj *gpuobj;
+	int ret;
+
+	if (!(gpuobj = *pgpuobj = kzalloc(sizeof(*gpuobj), GFP_KERNEL)))
+		return -ENOMEM;
+
+	ret = nvkm_gpuobj_ctor(device, size, align, zero, parent, gpuobj);
+	if (ret)
+		nvkm_gpuobj_del(pgpuobj);
+	return ret;
+}
+
+/* the below is basically only here to support sharing the paged dma object
+ * for PCI(E)GART on <=nv4x chipsets, and should *not* be expected to work
+ * anywhere else.
+ */
+
+int
+nvkm_gpuobj_wrap(struct nvkm_memory *memory, struct nvkm_gpuobj **pgpuobj)
+{
+	if (!(*pgpuobj = kzalloc(sizeof(**pgpuobj), GFP_KERNEL)))
+		return -ENOMEM;
+
+	(*pgpuobj)->addr = nvkm_memory_addr(memory);
+	(*pgpuobj)->size = nvkm_memory_size(memory);
+	return 0;
+}
+
+void
+nvkm_gpuobj_memcpy_to(struct nvkm_gpuobj *dst, u32 dstoffset, void *src,
+		      u32 length)
+{
+	int i;
+
+	for (i = 0; i < length; i += 4)
+		nvkm_wo32(dst, dstoffset + i, *(u32 *)(src + i));
+}
+
+void
+nvkm_gpuobj_memcpy_from(void *dst, struct nvkm_gpuobj *src, u32 srcoffset,
+			u32 length)
+{
+	int i;
+
+	for (i = 0; i < length; i += 4)
+		((u32 *)src)[i / 4] = nvkm_ro32(src, srcoffset + i);
+}