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, 576 insertions, 0 deletions

diff --git a/drivers/net/ethernet/8390/wd.c b/drivers/net/ethernet/8390/wd.c
new file mode 100644
index 000000000..5b00c452b
--- /dev/null
+++ b/drivers/net/ethernet/8390/wd.c
@@ -0,0 +1,576 @@
+/* wd.c: A WD80x3 ethernet driver for linux. */
+/*
+	Written 1993-94 by Donald Becker.
+
+	Copyright 1993 United States Government as represented by the
+	Director, National Security Agency.
+
+	This software may be used and distributed according to the terms
+	of the GNU General Public License, incorporated herein by reference.
+
+	The author may be reached as becker@scyld.com, or C/O
+	Scyld Computing Corporation
+	410 Severn Ave., Suite 210
+	Annapolis MD 21403
+
+	This is a driver for WD8003 and WD8013 "compatible" ethercards.
+
+	Thanks to Russ Nelson (nelson@crnwyr.com) for loaning me a WD8013.
+
+	Changelog:
+
+	Paul Gortmaker	: multiple card support for module users, support
+			  for non-standard memory sizes.
+
+
+*/
+
+static const char version[] =
+	"wd.c:v1.10 9/23/94 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n";
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+
+#include <asm/io.h>
+
+#include "8390.h"
+
+#define DRV_NAME "wd"
+
+/* A zero-terminated list of I/O addresses to be probed. */
+static unsigned int wd_portlist[] __initdata =
+{0x300, 0x280, 0x380, 0x240, 0};
+
+static int wd_probe1(struct net_device *dev, int ioaddr);
+
+static int wd_open(struct net_device *dev);
+static void wd_reset_8390(struct net_device *dev);
+static void wd_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
+						int ring_page);
+static void wd_block_input(struct net_device *dev, int count,
+						  struct sk_buff *skb, int ring_offset);
+static void wd_block_output(struct net_device *dev, int count,
+							const unsigned char *buf, int start_page);
+static int wd_close(struct net_device *dev);
+
+static u32 wd_msg_enable;
+
+#define WD_START_PG		0x00	/* First page of TX buffer */
+#define WD03_STOP_PG	0x20	/* Last page +1 of RX ring */
+#define WD13_STOP_PG	0x40	/* Last page +1 of RX ring */
+
+#define WD_CMDREG		0		/* Offset to ASIC command register. */
+#define	 WD_RESET		0x80	/* Board reset, in WD_CMDREG. */
+#define	 WD_MEMENB		0x40	/* Enable the shared memory. */
+#define WD_CMDREG5		5		/* Offset to 16-bit-only ASIC register 5. */
+#define	 ISA16			0x80	/* Enable 16 bit access from the ISA bus. */
+#define	 NIC16			0x40	/* Enable 16 bit access from the 8390. */
+#define WD_NIC_OFFSET	16		/* Offset to the 8390 from the base_addr. */
+#define WD_IO_EXTENT	32
+
+
+/*	Probe for the WD8003 and WD8013.  These cards have the station
+	address PROM at I/O ports <base>+8 to <base>+13, with a checksum
+	following. A Soundblaster can have the same checksum as an WDethercard,
+	so we have an extra exclusionary check for it.
+
+	The wd_probe1() routine initializes the card and fills the
+	station address field. */
+
+static int __init do_wd_probe(struct net_device *dev)
+{
+	int i;
+	struct resource *r;
+	int base_addr = dev->base_addr;
+	int irq = dev->irq;
+	int mem_start = dev->mem_start;
+	int mem_end = dev->mem_end;
+
+	if (base_addr > 0x1ff) {	/* Check a user specified location. */
+		r = request_region(base_addr, WD_IO_EXTENT, "wd-probe");
+		if ( r == NULL)
+			return -EBUSY;
+		i = wd_probe1(dev, base_addr);
+		if (i != 0)
+			release_region(base_addr, WD_IO_EXTENT);
+		else
+			r->name = dev->name;
+		return i;
+	}
+	else if (base_addr != 0)	/* Don't probe at all. */
+		return -ENXIO;
+
+	for (i = 0; wd_portlist[i]; i++) {
+		int ioaddr = wd_portlist[i];
+		r = request_region(ioaddr, WD_IO_EXTENT, "wd-probe");
+		if (r == NULL)
+			continue;
+		if (wd_probe1(dev, ioaddr) == 0) {
+			r->name = dev->name;
+			return 0;
+		}
+		release_region(ioaddr, WD_IO_EXTENT);
+		dev->irq = irq;
+		dev->mem_start = mem_start;
+		dev->mem_end = mem_end;
+	}
+
+	return -ENODEV;
+}
+
+#ifndef MODULE
+struct net_device * __init wd_probe(int unit)
+{
+	struct net_device *dev = alloc_ei_netdev();
+	int err;
+
+	if (!dev)
+		return ERR_PTR(-ENOMEM);
+
+	sprintf(dev->name, "eth%d", unit);
+	netdev_boot_setup_check(dev);
+
+	err = do_wd_probe(dev);
+	if (err)
+		goto out;
+	return dev;
+out:
+	free_netdev(dev);
+	return ERR_PTR(err);
+}
+#endif
+
+static const struct net_device_ops wd_netdev_ops = {
+	.ndo_open		= wd_open,
+	.ndo_stop		= wd_close,
+	.ndo_start_xmit		= ei_start_xmit,
+	.ndo_tx_timeout		= ei_tx_timeout,
+	.ndo_get_stats		= ei_get_stats,
+	.ndo_set_rx_mode	= ei_set_multicast_list,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address 	= eth_mac_addr,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	.ndo_poll_controller 	= ei_poll,
+#endif
+};
+
+static int __init wd_probe1(struct net_device *dev, int ioaddr)
+{
+	int i;
+	int err;
+	int checksum = 0;
+	int ancient = 0;			/* An old card without config registers. */
+	int word16 = 0;				/* 0 = 8 bit, 1 = 16 bit */
+	u8 addr[ETH_ALEN];
+	const char *model_name;
+	static unsigned version_printed;
+	struct ei_device *ei_local = netdev_priv(dev);
+
+	for (i = 0; i < 8; i++)
+		checksum += inb(ioaddr + 8 + i);
+	if (inb(ioaddr + 8) == 0xff 	/* Extra check to avoid soundcard. */
+		|| inb(ioaddr + 9) == 0xff
+		|| (checksum & 0xff) != 0xFF)
+		return -ENODEV;
+
+	/* Check for semi-valid mem_start/end values if supplied. */
+	if ((dev->mem_start % 0x2000) || (dev->mem_end % 0x2000)) {
+		netdev_warn(dev,
+			    "wd.c: user supplied mem_start or mem_end not on 8kB boundary - ignored.\n");
+		dev->mem_start = 0;
+		dev->mem_end = 0;
+	}
+
+	if ((wd_msg_enable & NETIF_MSG_DRV) && (version_printed++ == 0))
+		netdev_info(dev, version);
+
+	for (i = 0; i < 6; i++)
+		addr[i] = inb(ioaddr + 8 + i);
+	eth_hw_addr_set(dev, addr);
+
+	netdev_info(dev, "WD80x3 at %#3x, %pM", ioaddr, dev->dev_addr);
+
+	/* The following PureData probe code was contributed by
+	   Mike Jagdis <jaggy@purplet.demon.co.uk>. Puredata does software
+	   configuration differently from others so we have to check for them.
+	   This detects an 8 bit, 16 bit or dumb (Toshiba, jumpered) card.
+	   */
+	if (inb(ioaddr+0) == 'P' && inb(ioaddr+1) == 'D') {
+		unsigned char reg5 = inb(ioaddr+5);
+
+		switch (inb(ioaddr+2)) {
+		case 0x03: word16 = 0; model_name = "PDI8023-8";	break;
+		case 0x05: word16 = 0; model_name = "PDUC8023";	break;
+		case 0x0a: word16 = 1; model_name = "PDI8023-16"; break;
+			/* Either 0x01 (dumb) or they've released a new version. */
+		default:	 word16 = 0; model_name = "PDI8023";	break;
+		}
+		dev->mem_start = ((reg5 & 0x1c) + 0xc0) << 12;
+		dev->irq = (reg5 & 0xe0) == 0xe0 ? 10 : (reg5 >> 5) + 1;
+	} else {								/* End of PureData probe */
+		/* This method of checking for a 16-bit board is borrowed from the
+		   we.c driver.  A simpler method is just to look in ASIC reg. 0x03.
+		   I'm comparing the two method in alpha test to make certain they
+		   return the same result. */
+		/* Check for the old 8 bit board - it has register 0/8 aliasing.
+		   Do NOT check i>=6 here -- it hangs the old 8003 boards! */
+		for (i = 0; i < 6; i++)
+			if (inb(ioaddr+i) != inb(ioaddr+8+i))
+				break;
+		if (i >= 6) {
+			ancient = 1;
+			model_name = "WD8003-old";
+			word16 = 0;
+		} else {
+			int tmp = inb(ioaddr+1); /* fiddle with 16bit bit */
+			outb( tmp ^ 0x01, ioaddr+1 ); /* attempt to clear 16bit bit */
+			if (((inb( ioaddr+1) & 0x01) == 0x01) /* A 16 bit card */
+				&& (tmp & 0x01) == 0x01	) {				/* In a 16 slot. */
+				int asic_reg5 = inb(ioaddr+WD_CMDREG5);
+				/* Magic to set ASIC to word-wide mode. */
+				outb( NIC16 | (asic_reg5&0x1f), ioaddr+WD_CMDREG5);
+				outb(tmp, ioaddr+1);
+				model_name = "WD8013";
+				word16 = 1;		/* We have a 16bit board here! */
+			} else {
+				model_name = "WD8003";
+				word16 = 0;
+			}
+			outb(tmp, ioaddr+1);			/* Restore original reg1 value. */
+		}
+#ifndef final_version
+		if ( !ancient && (inb(ioaddr+1) & 0x01) != (word16 & 0x01))
+			pr_cont("\nWD80?3: Bus width conflict, %d (probe) != %d (reg report).",
+				word16 ? 16 : 8,
+				(inb(ioaddr+1) & 0x01) ? 16 : 8);
+#endif
+	}
+
+#if defined(WD_SHMEM) && WD_SHMEM > 0x80000
+	/* Allow a compile-time override.	 */
+	dev->mem_start = WD_SHMEM;
+#else
+	if (dev->mem_start == 0) {
+		/* Sanity and old 8003 check */
+		int reg0 = inb(ioaddr);
+		if (reg0 == 0xff || reg0 == 0) {
+			/* Future plan: this could check a few likely locations first. */
+			dev->mem_start = 0xd0000;
+			pr_cont(" assigning address %#lx", dev->mem_start);
+		} else {
+			int high_addr_bits = inb(ioaddr+WD_CMDREG5) & 0x1f;
+			/* Some boards don't have the register 5 -- it returns 0xff. */
+			if (high_addr_bits == 0x1f || word16 == 0)
+				high_addr_bits = 0x01;
+			dev->mem_start = ((reg0&0x3f) << 13) + (high_addr_bits << 19);
+		}
+	}
+#endif
+
+	/* The 8390 isn't at the base address -- the ASIC regs are there! */
+	dev->base_addr = ioaddr+WD_NIC_OFFSET;
+
+	if (dev->irq < 2) {
+		static const int irqmap[] = {9, 3, 5, 7, 10, 11, 15, 4};
+		int reg1 = inb(ioaddr+1);
+		int reg4 = inb(ioaddr+4);
+		if (ancient || reg1 == 0xff) {	/* Ack!! No way to read the IRQ! */
+			short nic_addr = ioaddr+WD_NIC_OFFSET;
+			unsigned long irq_mask;
+
+			/* We have an old-style ethercard that doesn't report its IRQ
+			   line.  Do autoirq to find the IRQ line. Note that this IS NOT
+			   a reliable way to trigger an interrupt. */
+			outb_p(E8390_NODMA + E8390_STOP, nic_addr);
+			outb(0x00, nic_addr+EN0_IMR);	/* Disable all intrs. */
+
+			irq_mask = probe_irq_on();
+			outb_p(0xff, nic_addr + EN0_IMR);	/* Enable all interrupts. */
+			outb_p(0x00, nic_addr + EN0_RCNTLO);
+			outb_p(0x00, nic_addr + EN0_RCNTHI);
+			outb(E8390_RREAD+E8390_START, nic_addr); /* Trigger it... */
+			mdelay(20);
+			dev->irq = probe_irq_off(irq_mask);
+
+			outb_p(0x00, nic_addr+EN0_IMR);	/* Mask all intrs. again. */
+
+			if (wd_msg_enable & NETIF_MSG_PROBE)
+				pr_cont(" autoirq is %d", dev->irq);
+			if (dev->irq < 2)
+				dev->irq = word16 ? 10 : 5;
+		} else
+			dev->irq = irqmap[((reg4 >> 5) & 0x03) + (reg1 & 0x04)];
+	} else if (dev->irq == 2)		/* Fixup bogosity: IRQ2 is really IRQ9 */
+		dev->irq = 9;
+
+	/* Snarf the interrupt now.  There's no point in waiting since we cannot
+	   share and the board will usually be enabled. */
+	i = request_irq(dev->irq, ei_interrupt, 0, DRV_NAME, dev);
+	if (i) {
+		pr_cont(" unable to get IRQ %d.\n", dev->irq);
+		return i;
+	}
+
+	/* OK, were are certain this is going to work.  Setup the device. */
+	ei_status.name = model_name;
+	ei_status.word16 = word16;
+	ei_status.tx_start_page = WD_START_PG;
+	ei_status.rx_start_page = WD_START_PG + TX_PAGES;
+
+	/* Don't map in the shared memory until the board is actually opened. */
+
+	/* Some cards (eg WD8003EBT) can be jumpered for more (32k!) memory. */
+	if (dev->mem_end != 0) {
+		ei_status.stop_page = (dev->mem_end - dev->mem_start)/256;
+		ei_status.priv = dev->mem_end - dev->mem_start;
+	} else {
+		ei_status.stop_page = word16 ? WD13_STOP_PG : WD03_STOP_PG;
+		dev->mem_end = dev->mem_start + (ei_status.stop_page - WD_START_PG)*256;
+		ei_status.priv = (ei_status.stop_page - WD_START_PG)*256;
+	}
+
+	ei_status.mem = ioremap(dev->mem_start, ei_status.priv);
+	if (!ei_status.mem) {
+		free_irq(dev->irq, dev);
+		return -ENOMEM;
+	}
+
+	pr_cont(" %s, IRQ %d, shared memory at %#lx-%#lx.\n",
+		model_name, dev->irq, dev->mem_start, dev->mem_end-1);
+
+	ei_status.reset_8390 = wd_reset_8390;
+	ei_status.block_input = wd_block_input;
+	ei_status.block_output = wd_block_output;
+	ei_status.get_8390_hdr = wd_get_8390_hdr;
+
+	dev->netdev_ops = &wd_netdev_ops;
+	NS8390_init(dev, 0);
+	ei_local->msg_enable = wd_msg_enable;
+
+#if 1
+	/* Enable interrupt generation on softconfig cards -- M.U */
+	/* .. but possibly potentially unsafe - Donald */
+	if (inb(ioaddr+14) & 0x20)
+		outb(inb(ioaddr+4)|0x80, ioaddr+4);
+#endif
+
+	err = register_netdev(dev);
+	if (err) {
+		free_irq(dev->irq, dev);
+		iounmap(ei_status.mem);
+	}
+	return err;
+}
+
+static int
+wd_open(struct net_device *dev)
+{
+  int ioaddr = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */
+
+  /* Map in the shared memory. Always set register 0 last to remain
+	 compatible with very old boards. */
+  ei_status.reg0 = ((dev->mem_start>>13) & 0x3f) | WD_MEMENB;
+  ei_status.reg5 = ((dev->mem_start>>19) & 0x1f) | NIC16;
+
+  if (ei_status.word16)
+	  outb(ei_status.reg5, ioaddr+WD_CMDREG5);
+  outb(ei_status.reg0, ioaddr); /* WD_CMDREG */
+
+  return ei_open(dev);
+}
+
+static void
+wd_reset_8390(struct net_device *dev)
+{
+	int wd_cmd_port = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */
+	struct ei_device *ei_local = netdev_priv(dev);
+
+	outb(WD_RESET, wd_cmd_port);
+	netif_dbg(ei_local, hw, dev, "resetting the WD80x3 t=%lu...\n",
+		  jiffies);
+	ei_status.txing = 0;
+
+	/* Set up the ASIC registers, just in case something changed them. */
+	outb((((dev->mem_start>>13) & 0x3f)|WD_MEMENB), wd_cmd_port);
+	if (ei_status.word16)
+		outb(NIC16 | ((dev->mem_start>>19) & 0x1f), wd_cmd_port+WD_CMDREG5);
+
+	netif_dbg(ei_local, hw, dev, "reset done\n");
+}
+
+/* Grab the 8390 specific header. Similar to the block_input routine, but
+   we don't need to be concerned with ring wrap as the header will be at
+   the start of a page, so we optimize accordingly. */
+
+static void
+wd_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
+{
+
+	int wd_cmdreg = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */
+	void __iomem *hdr_start = ei_status.mem + ((ring_page - WD_START_PG)<<8);
+
+	/* We'll always get a 4 byte header read followed by a packet read, so
+	   we enable 16 bit mode before the header, and disable after the body. */
+	if (ei_status.word16)
+		outb(ISA16 | ei_status.reg5, wd_cmdreg+WD_CMDREG5);
+
+#ifdef __BIG_ENDIAN
+	/* Officially this is what we are doing, but the readl() is faster */
+	/* unfortunately it isn't endian aware of the struct               */
+	memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr));
+	hdr->count = le16_to_cpu(hdr->count);
+#else
+	((unsigned int*)hdr)[0] = readl(hdr_start);
+#endif
+}
+
+/* Block input and output are easy on shared memory ethercards, and trivial
+   on the Western digital card where there is no choice of how to do it.
+   The only complications are that the ring buffer wraps, and need to map
+   switch between 8- and 16-bit modes. */
+
+static void
+wd_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
+{
+	int wd_cmdreg = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */
+	unsigned long offset = ring_offset - (WD_START_PG<<8);
+	void __iomem *xfer_start = ei_status.mem + offset;
+
+	if (offset + count > ei_status.priv) {
+		/* We must wrap the input move. */
+		int semi_count = ei_status.priv - offset;
+		memcpy_fromio(skb->data, xfer_start, semi_count);
+		count -= semi_count;
+		memcpy_fromio(skb->data + semi_count, ei_status.mem + TX_PAGES * 256, count);
+	} else {
+		/* Packet is in one chunk -- we can copy + cksum. */
+		memcpy_fromio(skb->data, xfer_start, count);
+	}
+
+	/* Turn off 16 bit access so that reboot works.	 ISA brain-damage */
+	if (ei_status.word16)
+		outb(ei_status.reg5, wd_cmdreg+WD_CMDREG5);
+}
+
+static void
+wd_block_output(struct net_device *dev, int count, const unsigned char *buf,
+				int start_page)
+{
+	int wd_cmdreg = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */
+	void __iomem *shmem = ei_status.mem + ((start_page - WD_START_PG)<<8);
+
+
+	if (ei_status.word16) {
+		/* Turn on and off 16 bit access so that reboot works. */
+		outb(ISA16 | ei_status.reg5, wd_cmdreg+WD_CMDREG5);
+		memcpy_toio(shmem, buf, count);
+		outb(ei_status.reg5, wd_cmdreg+WD_CMDREG5);
+	} else
+		memcpy_toio(shmem, buf, count);
+}
+
+
+static int
+wd_close(struct net_device *dev)
+{
+	int wd_cmdreg = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */
+	struct ei_device *ei_local = netdev_priv(dev);
+
+	netif_dbg(ei_local, ifdown, dev, "Shutting down ethercard.\n");
+	ei_close(dev);
+
+	/* Change from 16-bit to 8-bit shared memory so reboot works. */
+	if (ei_status.word16)
+		outb(ei_status.reg5, wd_cmdreg + WD_CMDREG5 );
+
+	/* And disable the shared memory. */
+	outb(ei_status.reg0 & ~WD_MEMENB, wd_cmdreg);
+
+	return 0;
+}
+
+
+#ifdef MODULE
+#define MAX_WD_CARDS	4	/* Max number of wd cards per module */
+static struct net_device *dev_wd[MAX_WD_CARDS];
+static int io[MAX_WD_CARDS];
+static int irq[MAX_WD_CARDS];
+static int mem[MAX_WD_CARDS];
+static int mem_end[MAX_WD_CARDS];	/* for non std. mem size */
+
+module_param_hw_array(io, int, ioport, NULL, 0);
+module_param_hw_array(irq, int, irq, NULL, 0);
+module_param_hw_array(mem, int, iomem, NULL, 0);
+module_param_hw_array(mem_end, int, iomem, NULL, 0);
+module_param_named(msg_enable, wd_msg_enable, uint, 0444);
+MODULE_PARM_DESC(io, "I/O base address(es)");
+MODULE_PARM_DESC(irq, "IRQ number(s) (ignored for PureData boards)");
+MODULE_PARM_DESC(mem, "memory base address(es)(ignored for PureData boards)");
+MODULE_PARM_DESC(mem_end, "memory end address(es)");
+MODULE_PARM_DESC(msg_enable, "Debug message level (see linux/netdevice.h for bitmap)");
+MODULE_DESCRIPTION("ISA Western Digital wd8003/wd8013 ; SMC Elite, Elite16 ethernet driver");
+MODULE_LICENSE("GPL");
+
+/* This is set up so that only a single autoprobe takes place per call.
+ISA device autoprobes on a running machine are not recommended. */
+
+static int __init wd_init_module(void)
+{
+	struct net_device *dev;
+	int this_dev, found = 0;
+
+	for (this_dev = 0; this_dev < MAX_WD_CARDS; this_dev++) {
+		if (io[this_dev] == 0)  {
+			if (this_dev != 0) break; /* only autoprobe 1st one */
+			printk(KERN_NOTICE "wd.c: Presently autoprobing (not recommended) for a single card.\n");
+		}
+		dev = alloc_ei_netdev();
+		if (!dev)
+			break;
+		dev->irq = irq[this_dev];
+		dev->base_addr = io[this_dev];
+		dev->mem_start = mem[this_dev];
+		dev->mem_end = mem_end[this_dev];
+		if (do_wd_probe(dev) == 0) {
+			dev_wd[found++] = dev;
+			continue;
+		}
+		free_netdev(dev);
+		printk(KERN_WARNING "wd.c: No wd80x3 card found (i/o = 0x%x).\n", io[this_dev]);
+		break;
+	}
+	if (found)
+		return 0;
+	return -ENXIO;
+}
+module_init(wd_init_module);
+
+static void cleanup_card(struct net_device *dev)
+{
+	free_irq(dev->irq, dev);
+	release_region(dev->base_addr - WD_NIC_OFFSET, WD_IO_EXTENT);
+	iounmap(ei_status.mem);
+}
+
+static void __exit wd_cleanup_module(void)
+{
+	int this_dev;
+
+	for (this_dev = 0; this_dev < MAX_WD_CARDS; this_dev++) {
+		struct net_device *dev = dev_wd[this_dev];
+		if (dev) {
+			unregister_netdev(dev);
+			cleanup_card(dev);
+			free_netdev(dev);
+		}
+	}
+}
+module_exit(wd_cleanup_module);
+#endif /* MODULE */