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, 341 insertions, 0 deletions

diff --git a/drivers/scsi/arm/cumana_1.c b/drivers/scsi/arm/cumana_1.c
new file mode 100644
index 000000000..5d4f67ba7
--- /dev/null
+++ b/drivers/scsi/arm/cumana_1.c
@@ -0,0 +1,341 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Generic Generic NCR5380 driver
+ *
+ * Copyright 1995-2002, Russell King
+ */
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/blkdev.h>
+#include <linux/init.h>
+
+#include <asm/ecard.h>
+#include <asm/io.h>
+
+#include <scsi/scsi_host.h>
+
+#define priv(host)			((struct NCR5380_hostdata *)(host)->hostdata)
+#define NCR5380_read(reg)		cumanascsi_read(hostdata, reg)
+#define NCR5380_write(reg, value)	cumanascsi_write(hostdata, reg, value)
+
+#define NCR5380_dma_xfer_len		cumanascsi_dma_xfer_len
+#define NCR5380_dma_recv_setup		cumanascsi_pread
+#define NCR5380_dma_send_setup		cumanascsi_pwrite
+#define NCR5380_dma_residual		NCR5380_dma_residual_none
+
+#define NCR5380_intr			cumanascsi_intr
+#define NCR5380_queue_command		cumanascsi_queue_command
+#define NCR5380_info			cumanascsi_info
+
+#define NCR5380_implementation_fields	\
+	unsigned ctrl
+
+struct NCR5380_hostdata;
+static u8 cumanascsi_read(struct NCR5380_hostdata *, unsigned int);
+static void cumanascsi_write(struct NCR5380_hostdata *, unsigned int, u8);
+
+#include "../NCR5380.h"
+
+#define CTRL	0x16fc
+#define STAT	0x2004
+#define L(v)	(((v)<<16)|((v) & 0x0000ffff))
+#define H(v)	(((v)>>16)|((v) & 0xffff0000))
+
+static inline int cumanascsi_pwrite(struct NCR5380_hostdata *hostdata,
+                                    unsigned char *addr, int len)
+{
+  unsigned long *laddr;
+  u8 __iomem *base = hostdata->io;
+  u8 __iomem *dma = hostdata->pdma_io + 0x2000;
+
+  if(!len) return 0;
+
+  writeb(0x02, base + CTRL);
+  laddr = (unsigned long *)addr;
+  while(len >= 32)
+  {
+    unsigned int status;
+    unsigned long v;
+    status = readb(base + STAT);
+    if(status & 0x80)
+      goto end;
+    if(!(status & 0x40))
+      continue;
+    v=*laddr++; writew(L(v), dma); writew(H(v), dma);
+    v=*laddr++; writew(L(v), dma); writew(H(v), dma);
+    v=*laddr++; writew(L(v), dma); writew(H(v), dma);
+    v=*laddr++; writew(L(v), dma); writew(H(v), dma);
+    v=*laddr++; writew(L(v), dma); writew(H(v), dma);
+    v=*laddr++; writew(L(v), dma); writew(H(v), dma);
+    v=*laddr++; writew(L(v), dma); writew(H(v), dma);
+    v=*laddr++; writew(L(v), dma); writew(H(v), dma);
+    len -= 32;
+    if(len == 0)
+      break;
+  }
+
+  addr = (unsigned char *)laddr;
+  writeb(0x12, base + CTRL);
+
+  while(len > 0)
+  {
+    unsigned int status;
+    status = readb(base + STAT);
+    if(status & 0x80)
+      goto end;
+    if(status & 0x40)
+    {
+      writeb(*addr++, dma);
+      if(--len == 0)
+        break;
+    }
+
+    status = readb(base + STAT);
+    if(status & 0x80)
+      goto end;
+    if(status & 0x40)
+    {
+      writeb(*addr++, dma);
+      if(--len == 0)
+        break;
+    }
+  }
+end:
+  writeb(hostdata->ctrl | 0x40, base + CTRL);
+
+	if (len)
+		return -1;
+	return 0;
+}
+
+static inline int cumanascsi_pread(struct NCR5380_hostdata *hostdata,
+                                   unsigned char *addr, int len)
+{
+  unsigned long *laddr;
+  u8 __iomem *base = hostdata->io;
+  u8 __iomem *dma = hostdata->pdma_io + 0x2000;
+
+  if(!len) return 0;
+
+  writeb(0x00, base + CTRL);
+  laddr = (unsigned long *)addr;
+  while(len >= 32)
+  {
+    unsigned int status;
+    status = readb(base + STAT);
+    if(status & 0x80)
+      goto end;
+    if(!(status & 0x40))
+      continue;
+    *laddr++ = readw(dma) | (readw(dma) << 16);
+    *laddr++ = readw(dma) | (readw(dma) << 16);
+    *laddr++ = readw(dma) | (readw(dma) << 16);
+    *laddr++ = readw(dma) | (readw(dma) << 16);
+    *laddr++ = readw(dma) | (readw(dma) << 16);
+    *laddr++ = readw(dma) | (readw(dma) << 16);
+    *laddr++ = readw(dma) | (readw(dma) << 16);
+    *laddr++ = readw(dma) | (readw(dma) << 16);
+    len -= 32;
+    if(len == 0)
+      break;
+  }
+
+  addr = (unsigned char *)laddr;
+  writeb(0x10, base + CTRL);
+
+  while(len > 0)
+  {
+    unsigned int status;
+    status = readb(base + STAT);
+    if(status & 0x80)
+      goto end;
+    if(status & 0x40)
+    {
+      *addr++ = readb(dma);
+      if(--len == 0)
+        break;
+    }
+
+    status = readb(base + STAT);
+    if(status & 0x80)
+      goto end;
+    if(status & 0x40)
+    {
+      *addr++ = readb(dma);
+      if(--len == 0)
+        break;
+    }
+  }
+end:
+  writeb(hostdata->ctrl | 0x40, base + CTRL);
+
+	if (len)
+		return -1;
+	return 0;
+}
+
+static int cumanascsi_dma_xfer_len(struct NCR5380_hostdata *hostdata,
+                                   struct scsi_cmnd *cmd)
+{
+	return cmd->transfersize;
+}
+
+static u8 cumanascsi_read(struct NCR5380_hostdata *hostdata,
+                          unsigned int reg)
+{
+	u8 __iomem *base = hostdata->io;
+	u8 val;
+
+	writeb(0, base + CTRL);
+
+	val = readb(base + 0x2100 + (reg << 2));
+
+	hostdata->ctrl = 0x40;
+	writeb(0x40, base + CTRL);
+
+	return val;
+}
+
+static void cumanascsi_write(struct NCR5380_hostdata *hostdata,
+                             unsigned int reg, u8 value)
+{
+	u8 __iomem *base = hostdata->io;
+
+	writeb(0, base + CTRL);
+
+	writeb(value, base + 0x2100 + (reg << 2));
+
+	hostdata->ctrl = 0x40;
+	writeb(0x40, base + CTRL);
+}
+
+#include "../NCR5380.c"
+
+static struct scsi_host_template cumanascsi_template = {
+	.module			= THIS_MODULE,
+	.name			= "Cumana 16-bit SCSI",
+	.info			= cumanascsi_info,
+	.queuecommand		= cumanascsi_queue_command,
+	.eh_abort_handler	= NCR5380_abort,
+	.eh_host_reset_handler	= NCR5380_host_reset,
+	.can_queue		= 16,
+	.this_id		= 7,
+	.sg_tablesize		= SG_ALL,
+	.cmd_per_lun		= 2,
+	.proc_name		= "CumanaSCSI-1",
+	.cmd_size		= sizeof(struct NCR5380_cmd),
+	.max_sectors		= 128,
+	.dma_boundary		= PAGE_SIZE - 1,
+};
+
+static int cumanascsi1_probe(struct expansion_card *ec,
+			     const struct ecard_id *id)
+{
+	struct Scsi_Host *host;
+	int ret;
+
+	ret = ecard_request_resources(ec);
+	if (ret)
+		goto out;
+
+	host = scsi_host_alloc(&cumanascsi_template, sizeof(struct NCR5380_hostdata));
+	if (!host) {
+		ret = -ENOMEM;
+		goto out_release;
+	}
+
+	priv(host)->io = ioremap(ecard_resource_start(ec, ECARD_RES_IOCSLOW),
+	                         ecard_resource_len(ec, ECARD_RES_IOCSLOW));
+	priv(host)->pdma_io = ioremap(ecard_resource_start(ec, ECARD_RES_MEMC),
+	                              ecard_resource_len(ec, ECARD_RES_MEMC));
+	if (!priv(host)->io || !priv(host)->pdma_io) {
+		ret = -ENOMEM;
+		goto out_unmap;
+	}
+
+	host->irq = ec->irq;
+
+	ret = NCR5380_init(host, FLAG_DMA_FIXUP | FLAG_LATE_DMA_SETUP);
+	if (ret)
+		goto out_unmap;
+
+	NCR5380_maybe_reset_bus(host);
+
+        priv(host)->ctrl = 0;
+        writeb(0, priv(host)->io + CTRL);
+
+	ret = request_irq(host->irq, cumanascsi_intr, 0,
+			  "CumanaSCSI-1", host);
+	if (ret) {
+		printk("scsi%d: IRQ%d not free: %d\n",
+		    host->host_no, host->irq, ret);
+		goto out_exit;
+	}
+
+	ret = scsi_add_host(host, &ec->dev);
+	if (ret)
+		goto out_free_irq;
+
+	scsi_scan_host(host);
+	goto out;
+
+ out_free_irq:
+	free_irq(host->irq, host);
+ out_exit:
+	NCR5380_exit(host);
+ out_unmap:
+	iounmap(priv(host)->io);
+	iounmap(priv(host)->pdma_io);
+	scsi_host_put(host);
+ out_release:
+	ecard_release_resources(ec);
+ out:
+	return ret;
+}
+
+static void cumanascsi1_remove(struct expansion_card *ec)
+{
+	struct Scsi_Host *host = ecard_get_drvdata(ec);
+	void __iomem *base = priv(host)->io;
+	void __iomem *dma = priv(host)->pdma_io;
+
+	ecard_set_drvdata(ec, NULL);
+
+	scsi_remove_host(host);
+	free_irq(host->irq, host);
+	NCR5380_exit(host);
+	scsi_host_put(host);
+	iounmap(base);
+	iounmap(dma);
+	ecard_release_resources(ec);
+}
+
+static const struct ecard_id cumanascsi1_cids[] = {
+	{ MANU_CUMANA, PROD_CUMANA_SCSI_1 },
+	{ 0xffff, 0xffff }
+};
+
+static struct ecard_driver cumanascsi1_driver = {
+	.probe		= cumanascsi1_probe,
+	.remove		= cumanascsi1_remove,
+	.id_table	= cumanascsi1_cids,
+	.drv = {
+		.name		= "cumanascsi1",
+	},
+};
+
+static int __init cumanascsi_init(void)
+{
+	return ecard_register_driver(&cumanascsi1_driver);
+}
+
+static void __exit cumanascsi_exit(void)
+{
+	ecard_remove_driver(&cumanascsi1_driver);
+}
+
+module_init(cumanascsi_init);
+module_exit(cumanascsi_exit);
+
+MODULE_DESCRIPTION("Cumana SCSI-1 driver for Acorn machines");
+MODULE_LICENSE("GPL");