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, 365 insertions, 0 deletions

diff --git a/drivers/scsi/sym53c8xx_2/sym_malloc.c b/drivers/scsi/sym53c8xx_2/sym_malloc.c
new file mode 100644
index 000000000..eb5c045c7
--- /dev/null
+++ b/drivers/scsi/sym53c8xx_2/sym_malloc.c
@@ -0,0 +1,365 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Device driver for the SYMBIOS/LSILOGIC 53C8XX and 53C1010 family 
+ * of PCI-SCSI IO processors.
+ *
+ * Copyright (C) 1999-2001  Gerard Roudier <groudier@free.fr>
+ *
+ * This driver is derived from the Linux sym53c8xx driver.
+ * Copyright (C) 1998-2000  Gerard Roudier
+ *
+ * The sym53c8xx driver is derived from the ncr53c8xx driver that had been 
+ * a port of the FreeBSD ncr driver to Linux-1.2.13.
+ *
+ * The original ncr driver has been written for 386bsd and FreeBSD by
+ *         Wolfgang Stanglmeier        <wolf@cologne.de>
+ *         Stefan Esser                <se@mi.Uni-Koeln.de>
+ * Copyright (C) 1994  Wolfgang Stanglmeier
+ *
+ * Other major contributions:
+ *
+ * NVRAM detection and reading.
+ * Copyright (C) 1997 Richard Waltham <dormouse@farsrobt.demon.co.uk>
+ *
+ *-----------------------------------------------------------------------------
+ */
+
+#include "sym_glue.h"
+
+/*
+ *  Simple power of two buddy-like generic allocator.
+ *  Provides naturally aligned memory chunks.
+ *
+ *  This simple code is not intended to be fast, but to 
+ *  provide power of 2 aligned memory allocations.
+ *  Since the SCRIPTS processor only supplies 8 bit arithmetic, 
+ *  this allocator allows simple and fast address calculations  
+ *  from the SCRIPTS code. In addition, cache line alignment 
+ *  is guaranteed for power of 2 cache line size.
+ *
+ *  This allocator has been developed for the Linux sym53c8xx  
+ *  driver, since this O/S does not provide naturally aligned 
+ *  allocations.
+ *  It has the advantage of allowing the driver to use private 
+ *  pages of memory that will be useful if we ever need to deal 
+ *  with IO MMUs for PCI.
+ */
+static void *___sym_malloc(m_pool_p mp, int size)
+{
+	int i = 0;
+	int s = (1 << SYM_MEM_SHIFT);
+	int j;
+	void *a;
+	m_link_p h = mp->h;
+
+	if (size > SYM_MEM_CLUSTER_SIZE)
+		return NULL;
+
+	while (size > s) {
+		s <<= 1;
+		++i;
+	}
+
+	j = i;
+	while (!h[j].next) {
+		if (s == SYM_MEM_CLUSTER_SIZE) {
+			h[j].next = (m_link_p) M_GET_MEM_CLUSTER();
+			if (h[j].next)
+				h[j].next->next = NULL;
+			break;
+		}
+		++j;
+		s <<= 1;
+	}
+	a = h[j].next;
+	if (a) {
+		h[j].next = h[j].next->next;
+		while (j > i) {
+			j -= 1;
+			s >>= 1;
+			h[j].next = (m_link_p) (a+s);
+			h[j].next->next = NULL;
+		}
+	}
+#ifdef DEBUG
+	printf("___sym_malloc(%d) = %p\n", size, (void *) a);
+#endif
+	return a;
+}
+
+/*
+ *  Counter-part of the generic allocator.
+ */
+static void ___sym_mfree(m_pool_p mp, void *ptr, int size)
+{
+	int i = 0;
+	int s = (1 << SYM_MEM_SHIFT);
+	m_link_p q;
+	unsigned long a, b;
+	m_link_p h = mp->h;
+
+#ifdef DEBUG
+	printf("___sym_mfree(%p, %d)\n", ptr, size);
+#endif
+
+	if (size > SYM_MEM_CLUSTER_SIZE)
+		return;
+
+	while (size > s) {
+		s <<= 1;
+		++i;
+	}
+
+	a = (unsigned long)ptr;
+
+	while (1) {
+		if (s == SYM_MEM_CLUSTER_SIZE) {
+#ifdef SYM_MEM_FREE_UNUSED
+			M_FREE_MEM_CLUSTER((void *)a);
+#else
+			((m_link_p) a)->next = h[i].next;
+			h[i].next = (m_link_p) a;
+#endif
+			break;
+		}
+		b = a ^ s;
+		q = &h[i];
+		while (q->next && q->next != (m_link_p) b) {
+			q = q->next;
+		}
+		if (!q->next) {
+			((m_link_p) a)->next = h[i].next;
+			h[i].next = (m_link_p) a;
+			break;
+		}
+		q->next = q->next->next;
+		a = a & b;
+		s <<= 1;
+		++i;
+	}
+}
+
+/*
+ *  Verbose and zeroing allocator that wrapps to the generic allocator.
+ */
+static void *__sym_calloc2(m_pool_p mp, int size, char *name, int uflags)
+{
+	void *p;
+
+	p = ___sym_malloc(mp, size);
+
+	if (DEBUG_FLAGS & DEBUG_ALLOC) {
+		printf ("new %-10s[%4d] @%p.\n", name, size, p);
+	}
+
+	if (p)
+		memset(p, 0, size);
+	else if (uflags & SYM_MEM_WARN)
+		printf ("__sym_calloc2: failed to allocate %s[%d]\n", name, size);
+	return p;
+}
+#define __sym_calloc(mp, s, n)	__sym_calloc2(mp, s, n, SYM_MEM_WARN)
+
+/*
+ *  Its counter-part.
+ */
+static void __sym_mfree(m_pool_p mp, void *ptr, int size, char *name)
+{
+	if (DEBUG_FLAGS & DEBUG_ALLOC)
+		printf ("freeing %-10s[%4d] @%p.\n", name, size, ptr);
+
+	___sym_mfree(mp, ptr, size);
+}
+
+/*
+ *  Default memory pool we donnot need to involve in DMA.
+ *
+ *  With DMA abstraction, we use functions (methods), to 
+ *  distinguish between non DMAable memory and DMAable memory.
+ */
+static void *___mp0_get_mem_cluster(m_pool_p mp)
+{
+	void *m = sym_get_mem_cluster();
+	if (m)
+		++mp->nump;
+	return m;
+}
+
+#ifdef	SYM_MEM_FREE_UNUSED
+static void ___mp0_free_mem_cluster(m_pool_p mp, void *m)
+{
+	sym_free_mem_cluster(m);
+	--mp->nump;
+}
+#else
+#define ___mp0_free_mem_cluster NULL
+#endif
+
+static struct sym_m_pool mp0 = {
+	NULL,
+	___mp0_get_mem_cluster,
+	___mp0_free_mem_cluster
+};
+
+/*
+ *  Methods that maintains DMAable pools according to user allocations.
+ *  New pools are created on the fly when a new pool id is provided.
+ *  They are deleted on the fly when they get emptied.
+ */
+/* Get a memory cluster that matches the DMA constraints of a given pool */
+static void * ___get_dma_mem_cluster(m_pool_p mp)
+{
+	m_vtob_p vbp;
+	void *vaddr;
+
+	vbp = __sym_calloc(&mp0, sizeof(*vbp), "VTOB");
+	if (!vbp)
+		goto out_err;
+
+	vaddr = sym_m_get_dma_mem_cluster(mp, vbp);
+	if (vaddr) {
+		int hc = VTOB_HASH_CODE(vaddr);
+		vbp->next = mp->vtob[hc];
+		mp->vtob[hc] = vbp;
+		++mp->nump;
+	}
+	return vaddr;
+out_err:
+	return NULL;
+}
+
+#ifdef	SYM_MEM_FREE_UNUSED
+/* Free a memory cluster and associated resources for DMA */
+static void ___free_dma_mem_cluster(m_pool_p mp, void *m)
+{
+	m_vtob_p *vbpp, vbp;
+	int hc = VTOB_HASH_CODE(m);
+
+	vbpp = &mp->vtob[hc];
+	while (*vbpp && (*vbpp)->vaddr != m)
+		vbpp = &(*vbpp)->next;
+	if (*vbpp) {
+		vbp = *vbpp;
+		*vbpp = (*vbpp)->next;
+		sym_m_free_dma_mem_cluster(mp, vbp);
+		__sym_mfree(&mp0, vbp, sizeof(*vbp), "VTOB");
+		--mp->nump;
+	}
+}
+#endif
+
+/* Fetch the memory pool for a given pool id (i.e. DMA constraints) */
+static inline m_pool_p ___get_dma_pool(m_pool_ident_t dev_dmat)
+{
+	m_pool_p mp;
+	for (mp = mp0.next;
+		mp && !sym_m_pool_match(mp->dev_dmat, dev_dmat);
+			mp = mp->next);
+	return mp;
+}
+
+/* Create a new memory DMAable pool (when fetch failed) */
+static m_pool_p ___cre_dma_pool(m_pool_ident_t dev_dmat)
+{
+	m_pool_p mp = __sym_calloc(&mp0, sizeof(*mp), "MPOOL");
+	if (mp) {
+		mp->dev_dmat = dev_dmat;
+		mp->get_mem_cluster = ___get_dma_mem_cluster;
+#ifdef	SYM_MEM_FREE_UNUSED
+		mp->free_mem_cluster = ___free_dma_mem_cluster;
+#endif
+		mp->next = mp0.next;
+		mp0.next = mp;
+		return mp;
+	}
+	return NULL;
+}
+
+#ifdef	SYM_MEM_FREE_UNUSED
+/* Destroy a DMAable memory pool (when got emptied) */
+static void ___del_dma_pool(m_pool_p p)
+{
+	m_pool_p *pp = &mp0.next;
+
+	while (*pp && *pp != p)
+		pp = &(*pp)->next;
+	if (*pp) {
+		*pp = (*pp)->next;
+		__sym_mfree(&mp0, p, sizeof(*p), "MPOOL");
+	}
+}
+#endif
+
+/* This lock protects only the memory allocation/free.  */
+static DEFINE_SPINLOCK(sym53c8xx_lock);
+
+/*
+ *  Actual allocator for DMAable memory.
+ */
+void *__sym_calloc_dma(m_pool_ident_t dev_dmat, int size, char *name)
+{
+	unsigned long flags;
+	m_pool_p mp;
+	void *m = NULL;
+
+	spin_lock_irqsave(&sym53c8xx_lock, flags);
+	mp = ___get_dma_pool(dev_dmat);
+	if (!mp)
+		mp = ___cre_dma_pool(dev_dmat);
+	if (!mp)
+		goto out;
+	m = __sym_calloc(mp, size, name);
+#ifdef	SYM_MEM_FREE_UNUSED
+	if (!mp->nump)
+		___del_dma_pool(mp);
+#endif
+
+ out:
+	spin_unlock_irqrestore(&sym53c8xx_lock, flags);
+	return m;
+}
+
+void __sym_mfree_dma(m_pool_ident_t dev_dmat, void *m, int size, char *name)
+{
+	unsigned long flags;
+	m_pool_p mp;
+
+	spin_lock_irqsave(&sym53c8xx_lock, flags);
+	mp = ___get_dma_pool(dev_dmat);
+	if (!mp)
+		goto out;
+	__sym_mfree(mp, m, size, name);
+#ifdef	SYM_MEM_FREE_UNUSED
+	if (!mp->nump)
+		___del_dma_pool(mp);
+#endif
+ out:
+	spin_unlock_irqrestore(&sym53c8xx_lock, flags);
+}
+
+/*
+ *  Actual virtual to bus physical address translator 
+ *  for 32 bit addressable DMAable memory.
+ */
+dma_addr_t __vtobus(m_pool_ident_t dev_dmat, void *m)
+{
+	unsigned long flags;
+	m_pool_p mp;
+	int hc = VTOB_HASH_CODE(m);
+	m_vtob_p vp = NULL;
+	void *a = (void *)((unsigned long)m & ~SYM_MEM_CLUSTER_MASK);
+	dma_addr_t b;
+
+	spin_lock_irqsave(&sym53c8xx_lock, flags);
+	mp = ___get_dma_pool(dev_dmat);
+	if (mp) {
+		vp = mp->vtob[hc];
+		while (vp && vp->vaddr != a)
+			vp = vp->next;
+	}
+	if (!vp)
+		panic("sym: VTOBUS FAILED!\n");
+	b = vp->baddr + (m - a);
+	spin_unlock_irqrestore(&sym53c8xx_lock, flags);
+	return b;
+}