From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 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(). ... --- drivers/net/arcnet/com20020.c | 418 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 418 insertions(+) create mode 100644 drivers/net/arcnet/com20020.c (limited to 'drivers/net/arcnet/com20020.c') diff --git a/drivers/net/arcnet/com20020.c b/drivers/net/arcnet/com20020.c new file mode 100644 index 000000000..06e1651b5 --- /dev/null +++ b/drivers/net/arcnet/com20020.c @@ -0,0 +1,418 @@ +/* + * Linux ARCnet driver - COM20020 chipset support + * + * Written 1997 by David Woodhouse. + * Written 1994-1999 by Avery Pennarun. + * Written 1999 by Martin Mares . + * Derived from skeleton.c by Donald Becker. + * + * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com) + * for sponsoring the further development of this driver. + * + * ********************** + * + * The original copyright of skeleton.c was as follows: + * + * skeleton.c Written 1993 by Donald Becker. + * Copyright 1993 United States Government as represented by the + * Director, National Security Agency. This software may only be used + * and distributed according to the terms of the GNU General Public License as + * modified by SRC, incorporated herein by reference. + * + * ********************** + * + * For more details, see drivers/net/arcnet.c + * + * ********************** + */ + +#define pr_fmt(fmt) "arcnet:" KBUILD_MODNAME ": " fmt + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "arcdevice.h" +#include "com20020.h" + +static const char * const clockrates[] = { + "XXXXXXX", "XXXXXXXX", "XXXXXX", "2.5 Mb/s", + "1.25Mb/s", "625 Kb/s", "312.5 Kb/s", "156.25 Kb/s", + "Reserved", "Reserved", "Reserved" +}; + +static void com20020_command(struct net_device *dev, int command); +static int com20020_status(struct net_device *dev); +static void com20020_setmask(struct net_device *dev, int mask); +static int com20020_reset(struct net_device *dev, int really_reset); +static void com20020_copy_to_card(struct net_device *dev, int bufnum, + int offset, void *buf, int count); +static void com20020_copy_from_card(struct net_device *dev, int bufnum, + int offset, void *buf, int count); +static void com20020_set_mc_list(struct net_device *dev); +static void com20020_close(struct net_device *); + +static void com20020_copy_from_card(struct net_device *dev, int bufnum, + int offset, void *buf, int count) +{ + int ioaddr = dev->base_addr, ofs = 512 * bufnum + offset; + + /* set up the address register */ + arcnet_outb((ofs >> 8) | RDDATAflag | AUTOINCflag, + ioaddr, COM20020_REG_W_ADDR_HI); + arcnet_outb(ofs & 0xff, ioaddr, COM20020_REG_W_ADDR_LO); + + /* copy the data */ + TIME(dev, "insb", count, + arcnet_insb(ioaddr, COM20020_REG_RW_MEMDATA, buf, count)); +} + +static void com20020_copy_to_card(struct net_device *dev, int bufnum, + int offset, void *buf, int count) +{ + int ioaddr = dev->base_addr, ofs = 512 * bufnum + offset; + + /* set up the address register */ + arcnet_outb((ofs >> 8) | AUTOINCflag, ioaddr, COM20020_REG_W_ADDR_HI); + arcnet_outb(ofs & 0xff, ioaddr, COM20020_REG_W_ADDR_LO); + + /* copy the data */ + TIME(dev, "outsb", count, + arcnet_outsb(ioaddr, COM20020_REG_RW_MEMDATA, buf, count)); +} + +/* Reset the card and check some basic stuff during the detection stage. */ +int com20020_check(struct net_device *dev) +{ + int ioaddr = dev->base_addr, status; + struct arcnet_local *lp = netdev_priv(dev); + + arcnet_outb(XTOcfg(3) | RESETcfg, ioaddr, COM20020_REG_W_CONFIG); + udelay(5); + arcnet_outb(XTOcfg(3), ioaddr, COM20020_REG_W_CONFIG); + mdelay(RESETtime); + + lp->setup = lp->clockm ? 0 : (lp->clockp << 1); + lp->setup2 = (lp->clockm << 4) | 8; + + /* CHECK: should we do this for SOHARD cards ? */ + /* Enable P1Mode for backplane mode */ + lp->setup = lp->setup | P1MODE; + + com20020_set_subaddress(lp, ioaddr, SUB_SETUP1); + arcnet_outb(lp->setup, ioaddr, COM20020_REG_W_XREG); + + if (lp->clockm != 0) { + com20020_set_subaddress(lp, ioaddr, SUB_SETUP2); + arcnet_outb(lp->setup2, ioaddr, COM20020_REG_W_XREG); + + /* must now write the magic "restart operation" command */ + mdelay(1); + arcnet_outb(STARTIOcmd, ioaddr, COM20020_REG_W_COMMAND); + } + + lp->config = (lp->timeout << 3) | (lp->backplane << 2) | SUB_NODE; + /* set node ID to 0x42 (but transmitter is disabled, so it's okay) */ + arcnet_outb(lp->config, ioaddr, COM20020_REG_W_CONFIG); + arcnet_outb(0x42, ioaddr, COM20020_REG_W_XREG); + + status = arcnet_inb(ioaddr, COM20020_REG_R_STATUS); + + if ((status & 0x99) != (NORXflag | TXFREEflag | RESETflag)) { + arc_printk(D_NORMAL, dev, "status invalid (%Xh).\n", status); + return -ENODEV; + } + arc_printk(D_INIT_REASONS, dev, "status after reset: %X\n", status); + + arcnet_outb(CFLAGScmd | RESETclear | CONFIGclear, + ioaddr, COM20020_REG_W_COMMAND); + status = arcnet_inb(ioaddr, COM20020_REG_R_STATUS); + arc_printk(D_INIT_REASONS, dev, "status after reset acknowledged: %X\n", + status); + + /* Read first location of memory */ + arcnet_outb(0 | RDDATAflag | AUTOINCflag, + ioaddr, COM20020_REG_W_ADDR_HI); + arcnet_outb(0, ioaddr, COM20020_REG_W_ADDR_LO); + + status = arcnet_inb(ioaddr, COM20020_REG_RW_MEMDATA); + if (status != TESTvalue) { + arc_printk(D_NORMAL, dev, "Signature byte not found (%02Xh != D1h).\n", + status); + return -ENODEV; + } + return 0; +} + +static int com20020_set_hwaddr(struct net_device *dev, void *addr) +{ + int ioaddr = dev->base_addr; + struct arcnet_local *lp = netdev_priv(dev); + struct sockaddr *hwaddr = addr; + + dev_addr_set(dev, hwaddr->sa_data); + com20020_set_subaddress(lp, ioaddr, SUB_NODE); + arcnet_outb(dev->dev_addr[0], ioaddr, COM20020_REG_W_XREG); + + return 0; +} + +static int com20020_netdev_open(struct net_device *dev) +{ + int ioaddr = dev->base_addr; + struct arcnet_local *lp = netdev_priv(dev); + + lp->config |= TXENcfg; + arcnet_outb(lp->config, ioaddr, COM20020_REG_W_CONFIG); + + return arcnet_open(dev); +} + +static int com20020_netdev_close(struct net_device *dev) +{ + int ioaddr = dev->base_addr; + struct arcnet_local *lp = netdev_priv(dev); + + arcnet_close(dev); + + /* disable transmitter */ + lp->config &= ~TXENcfg; + arcnet_outb(lp->config, ioaddr, COM20020_REG_W_CONFIG); + return 0; +} + +const struct net_device_ops com20020_netdev_ops = { + .ndo_open = com20020_netdev_open, + .ndo_stop = com20020_netdev_close, + .ndo_start_xmit = arcnet_send_packet, + .ndo_tx_timeout = arcnet_timeout, + .ndo_set_mac_address = com20020_set_hwaddr, + .ndo_set_rx_mode = com20020_set_mc_list, +}; + +/* Set up the struct net_device associated with this card. Called after + * probing succeeds. + */ +int com20020_found(struct net_device *dev, int shared) +{ + struct arcnet_local *lp; + int ioaddr = dev->base_addr; + + /* Initialize the rest of the device structure. */ + + lp = netdev_priv(dev); + + lp->hw.owner = THIS_MODULE; + lp->hw.command = com20020_command; + lp->hw.status = com20020_status; + lp->hw.intmask = com20020_setmask; + lp->hw.reset = com20020_reset; + lp->hw.copy_to_card = com20020_copy_to_card; + lp->hw.copy_from_card = com20020_copy_from_card; + lp->hw.close = com20020_close; + + /* FIXME: do this some other way! */ + if (!dev->dev_addr[0]) + arcnet_set_addr(dev, arcnet_inb(ioaddr, 8)); + + com20020_set_subaddress(lp, ioaddr, SUB_SETUP1); + arcnet_outb(lp->setup, ioaddr, COM20020_REG_W_XREG); + + if (lp->card_flags & ARC_CAN_10MBIT) { + com20020_set_subaddress(lp, ioaddr, SUB_SETUP2); + arcnet_outb(lp->setup2, ioaddr, COM20020_REG_W_XREG); + + /* must now write the magic "restart operation" command */ + mdelay(1); + arcnet_outb(STARTIOcmd, ioaddr, COM20020_REG_W_COMMAND); + } + + lp->config = (lp->timeout << 3) | (lp->backplane << 2) | SUB_NODE; + /* Default 0x38 + register: Node ID */ + arcnet_outb(lp->config, ioaddr, COM20020_REG_W_CONFIG); + arcnet_outb(dev->dev_addr[0], ioaddr, COM20020_REG_W_XREG); + + /* reserve the irq */ + if (request_irq(dev->irq, arcnet_interrupt, shared, + "arcnet (COM20020)", dev)) { + arc_printk(D_NORMAL, dev, "Can't get IRQ %d!\n", dev->irq); + return -ENODEV; + } + + arc_printk(D_NORMAL, dev, "%s: station %02Xh found at %03lXh, IRQ %d.\n", + lp->card_name, dev->dev_addr[0], dev->base_addr, dev->irq); + + if (lp->backplane) + arc_printk(D_NORMAL, dev, "Using backplane mode.\n"); + + if (lp->timeout != 3) + arc_printk(D_NORMAL, dev, "Using extended timeout value of %d\n", + lp->timeout); + + arc_printk(D_NORMAL, dev, "Using CKP %d - data rate %s\n", + lp->setup >> 1, + clockrates[3 - + ((lp->setup2 & 0xF0) >> 4) + + ((lp->setup & 0x0F) >> 1)]); + /* The clockrates array index looks very fragile. + * It seems like it could have negative indexing. + */ + + if (register_netdev(dev)) { + free_irq(dev->irq, dev); + return -EIO; + } + return 0; +} + +/* Do a hardware reset on the card, and set up necessary registers. + * + * This should be called as little as possible, because it disrupts the + * token on the network (causes a RECON) and requires a significant delay. + * + * However, it does make sure the card is in a defined state. + */ +static int com20020_reset(struct net_device *dev, int really_reset) +{ + struct arcnet_local *lp = netdev_priv(dev); + u_int ioaddr = dev->base_addr; + u_char inbyte; + + arc_printk(D_DEBUG, dev, "%s: %d: %s: dev: %p, lp: %p, dev->name: %s\n", + __FILE__, __LINE__, __func__, dev, lp, dev->name); + arc_printk(D_INIT, dev, "Resetting %s (status=%02Xh)\n", + dev->name, arcnet_inb(ioaddr, COM20020_REG_R_STATUS)); + + arc_printk(D_DEBUG, dev, "%s: %d: %s\n", __FILE__, __LINE__, __func__); + lp->config |= (lp->timeout << 3) | (lp->backplane << 2); + /* power-up defaults */ + arcnet_outb(lp->config, ioaddr, COM20020_REG_W_CONFIG); + arc_printk(D_DEBUG, dev, "%s: %d: %s\n", __FILE__, __LINE__, __func__); + + if (really_reset) { + /* reset the card */ + arcnet_outb(lp->config | RESETcfg, ioaddr, COM20020_REG_W_CONFIG); + udelay(5); + arcnet_outb(lp->config, ioaddr, COM20020_REG_W_CONFIG); + mdelay(RESETtime * 2); + /* COM20020 seems to be slower sometimes */ + } + /* clear flags & end reset */ + arc_printk(D_DEBUG, dev, "%s: %d: %s\n", __FILE__, __LINE__, __func__); + arcnet_outb(CFLAGScmd | RESETclear | CONFIGclear, + ioaddr, COM20020_REG_W_COMMAND); + + /* verify that the ARCnet signature byte is present */ + arc_printk(D_DEBUG, dev, "%s: %d: %s\n", __FILE__, __LINE__, __func__); + + com20020_copy_from_card(dev, 0, 0, &inbyte, 1); + arc_printk(D_DEBUG, dev, "%s: %d: %s\n", __FILE__, __LINE__, __func__); + if (inbyte != TESTvalue) { + arc_printk(D_DEBUG, dev, "%s: %d: %s\n", + __FILE__, __LINE__, __func__); + arc_printk(D_NORMAL, dev, "reset failed: TESTvalue not present.\n"); + return 1; + } + /* enable extended (512-byte) packets */ + arcnet_outb(CONFIGcmd | EXTconf, ioaddr, COM20020_REG_W_COMMAND); + + arc_printk(D_DEBUG, dev, "%s: %d: %s\n", __FILE__, __LINE__, __func__); + + /* done! return success. */ + return 0; +} + +static void com20020_setmask(struct net_device *dev, int mask) +{ + u_int ioaddr = dev->base_addr; + + arc_printk(D_DURING, dev, "Setting mask to %x at %x\n", mask, ioaddr); + arcnet_outb(mask, ioaddr, COM20020_REG_W_INTMASK); +} + +static void com20020_command(struct net_device *dev, int cmd) +{ + u_int ioaddr = dev->base_addr; + + arcnet_outb(cmd, ioaddr, COM20020_REG_W_COMMAND); +} + +static int com20020_status(struct net_device *dev) +{ + u_int ioaddr = dev->base_addr; + + return arcnet_inb(ioaddr, COM20020_REG_R_STATUS) + + (arcnet_inb(ioaddr, COM20020_REG_R_DIAGSTAT) << 8); +} + +static void com20020_close(struct net_device *dev) +{ + struct arcnet_local *lp = netdev_priv(dev); + int ioaddr = dev->base_addr; + + /* disable transmitter */ + lp->config &= ~TXENcfg; + arcnet_outb(lp->config, ioaddr, COM20020_REG_W_CONFIG); +} + +/* Set or clear the multicast filter for this adaptor. + * num_addrs == -1 Promiscuous mode, receive all packets + * num_addrs == 0 Normal mode, clear multicast list + * num_addrs > 0 Multicast mode, receive normal and MC packets, and do + * best-effort filtering. + * FIXME - do multicast stuff, not just promiscuous. + */ +static void com20020_set_mc_list(struct net_device *dev) +{ + struct arcnet_local *lp = netdev_priv(dev); + int ioaddr = dev->base_addr; + + if ((dev->flags & IFF_PROMISC) && (dev->flags & IFF_UP)) { + /* Enable promiscuous mode */ + if (!(lp->setup & PROMISCset)) + arc_printk(D_NORMAL, dev, "Setting promiscuous flag...\n"); + com20020_set_subaddress(lp, ioaddr, SUB_SETUP1); + lp->setup |= PROMISCset; + arcnet_outb(lp->setup, ioaddr, COM20020_REG_W_XREG); + } else { + /* Disable promiscuous mode, use normal mode */ + if ((lp->setup & PROMISCset)) + arc_printk(D_NORMAL, dev, "Resetting promiscuous flag...\n"); + com20020_set_subaddress(lp, ioaddr, SUB_SETUP1); + lp->setup &= ~PROMISCset; + arcnet_outb(lp->setup, ioaddr, COM20020_REG_W_XREG); + } +} + +#if defined(CONFIG_ARCNET_COM20020_PCI_MODULE) || \ + defined(CONFIG_ARCNET_COM20020_ISA_MODULE) || \ + defined(CONFIG_ARCNET_COM20020_CS_MODULE) +EXPORT_SYMBOL(com20020_check); +EXPORT_SYMBOL(com20020_found); +EXPORT_SYMBOL(com20020_netdev_ops); +#endif + +MODULE_LICENSE("GPL"); + +#ifdef MODULE + +static int __init com20020_module_init(void) +{ + if (BUGLVL(D_NORMAL)) + pr_info("%s\n", "COM20020 chipset support (by David Woodhouse et al.)"); + return 0; +} + +static void __exit com20020_module_exit(void) +{ +} +module_init(com20020_module_init); +module_exit(com20020_module_exit); +#endif /* MODULE */ -- cgit v1.2.3