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/ethernet/sun/sunbmac.h | 338 +++++++++++++++++++++++++++++++++++++ 1 file changed, 338 insertions(+) create mode 100644 drivers/net/ethernet/sun/sunbmac.h (limited to 'drivers/net/ethernet/sun/sunbmac.h') diff --git a/drivers/net/ethernet/sun/sunbmac.h b/drivers/net/ethernet/sun/sunbmac.h new file mode 100644 index 000000000..d379bd407 --- /dev/null +++ b/drivers/net/ethernet/sun/sunbmac.h @@ -0,0 +1,338 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* $Id: sunbmac.h,v 1.7 2000/07/11 22:35:22 davem Exp $ + * sunbmac.h: Defines for the Sun "Big MAC" 100baseT ethernet cards. + * + * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) + */ + +#ifndef _SUNBMAC_H +#define _SUNBMAC_H + +/* QEC global registers. */ +#define GLOB_CTRL 0x00UL /* Control */ +#define GLOB_STAT 0x04UL /* Status */ +#define GLOB_PSIZE 0x08UL /* Packet Size */ +#define GLOB_MSIZE 0x0cUL /* Local-mem size (64K) */ +#define GLOB_RSIZE 0x10UL /* Receive partition size */ +#define GLOB_TSIZE 0x14UL /* Transmit partition size */ +#define GLOB_REG_SIZE 0x18UL + +#define GLOB_CTRL_MMODE 0x40000000 /* MACE qec mode */ +#define GLOB_CTRL_BMODE 0x10000000 /* BigMAC qec mode */ +#define GLOB_CTRL_EPAR 0x00000020 /* Enable parity */ +#define GLOB_CTRL_ACNTRL 0x00000018 /* SBUS arbitration control */ +#define GLOB_CTRL_B64 0x00000004 /* 64 byte dvma bursts */ +#define GLOB_CTRL_B32 0x00000002 /* 32 byte dvma bursts */ +#define GLOB_CTRL_B16 0x00000000 /* 16 byte dvma bursts */ +#define GLOB_CTRL_RESET 0x00000001 /* Reset the QEC */ + +#define GLOB_STAT_TX 0x00000008 /* BigMAC Transmit IRQ */ +#define GLOB_STAT_RX 0x00000004 /* BigMAC Receive IRQ */ +#define GLOB_STAT_BM 0x00000002 /* BigMAC Global IRQ */ +#define GLOB_STAT_ER 0x00000001 /* BigMAC Error IRQ */ + +#define GLOB_PSIZE_2048 0x00 /* 2k packet size */ +#define GLOB_PSIZE_4096 0x01 /* 4k packet size */ +#define GLOB_PSIZE_6144 0x10 /* 6k packet size */ +#define GLOB_PSIZE_8192 0x11 /* 8k packet size */ + +/* QEC BigMAC channel registers. */ +#define CREG_CTRL 0x00UL /* Control */ +#define CREG_STAT 0x04UL /* Status */ +#define CREG_RXDS 0x08UL /* RX descriptor ring ptr */ +#define CREG_TXDS 0x0cUL /* TX descriptor ring ptr */ +#define CREG_RIMASK 0x10UL /* RX Interrupt Mask */ +#define CREG_TIMASK 0x14UL /* TX Interrupt Mask */ +#define CREG_QMASK 0x18UL /* QEC Error Interrupt Mask */ +#define CREG_BMASK 0x1cUL /* BigMAC Error Interrupt Mask*/ +#define CREG_RXWBUFPTR 0x20UL /* Local memory rx write ptr */ +#define CREG_RXRBUFPTR 0x24UL /* Local memory rx read ptr */ +#define CREG_TXWBUFPTR 0x28UL /* Local memory tx write ptr */ +#define CREG_TXRBUFPTR 0x2cUL /* Local memory tx read ptr */ +#define CREG_CCNT 0x30UL /* Collision Counter */ +#define CREG_REG_SIZE 0x34UL + +#define CREG_CTRL_TWAKEUP 0x00000001 /* Transmitter Wakeup, 'go'. */ + +#define CREG_STAT_BERROR 0x80000000 /* BigMAC error */ +#define CREG_STAT_TXIRQ 0x00200000 /* Transmit Interrupt */ +#define CREG_STAT_TXDERROR 0x00080000 /* TX Descriptor is bogus */ +#define CREG_STAT_TXLERR 0x00040000 /* Late Transmit Error */ +#define CREG_STAT_TXPERR 0x00020000 /* Transmit Parity Error */ +#define CREG_STAT_TXSERR 0x00010000 /* Transmit SBUS error ack */ +#define CREG_STAT_RXIRQ 0x00000020 /* Receive Interrupt */ +#define CREG_STAT_RXDROP 0x00000010 /* Dropped a RX'd packet */ +#define CREG_STAT_RXSMALL 0x00000008 /* Receive buffer too small */ +#define CREG_STAT_RXLERR 0x00000004 /* Receive Late Error */ +#define CREG_STAT_RXPERR 0x00000002 /* Receive Parity Error */ +#define CREG_STAT_RXSERR 0x00000001 /* Receive SBUS Error ACK */ + +#define CREG_STAT_ERRORS (CREG_STAT_BERROR|CREG_STAT_TXDERROR|CREG_STAT_TXLERR| \ + CREG_STAT_TXPERR|CREG_STAT_TXSERR|CREG_STAT_RXDROP| \ + CREG_STAT_RXSMALL|CREG_STAT_RXLERR|CREG_STAT_RXPERR| \ + CREG_STAT_RXSERR) + +#define CREG_QMASK_TXDERROR 0x00080000 /* TXD error */ +#define CREG_QMASK_TXLERR 0x00040000 /* TX late error */ +#define CREG_QMASK_TXPERR 0x00020000 /* TX parity error */ +#define CREG_QMASK_TXSERR 0x00010000 /* TX sbus error ack */ +#define CREG_QMASK_RXDROP 0x00000010 /* RX drop */ +#define CREG_QMASK_RXBERROR 0x00000008 /* RX buffer error */ +#define CREG_QMASK_RXLEERR 0x00000004 /* RX late error */ +#define CREG_QMASK_RXPERR 0x00000002 /* RX parity error */ +#define CREG_QMASK_RXSERR 0x00000001 /* RX sbus error ack */ + +/* BIGMAC core registers */ +#define BMAC_XIFCFG 0x000UL /* XIF config register */ + /* 0x004-->0x0fc, reserved */ +#define BMAC_STATUS 0x100UL /* Status register, clear on read */ +#define BMAC_IMASK 0x104UL /* Interrupt mask register */ + /* 0x108-->0x204, reserved */ +#define BMAC_TXSWRESET 0x208UL /* Transmitter software reset */ +#define BMAC_TXCFG 0x20cUL /* Transmitter config register */ +#define BMAC_IGAP1 0x210UL /* Inter-packet gap 1 */ +#define BMAC_IGAP2 0x214UL /* Inter-packet gap 2 */ +#define BMAC_ALIMIT 0x218UL /* Transmit attempt limit */ +#define BMAC_STIME 0x21cUL /* Transmit slot time */ +#define BMAC_PLEN 0x220UL /* Size of transmit preamble */ +#define BMAC_PPAT 0x224UL /* Pattern for transmit preamble */ +#define BMAC_TXDELIM 0x228UL /* Transmit delimiter */ +#define BMAC_JSIZE 0x22cUL /* Toe jam... */ +#define BMAC_TXPMAX 0x230UL /* Transmit max pkt size */ +#define BMAC_TXPMIN 0x234UL /* Transmit min pkt size */ +#define BMAC_PATTEMPT 0x238UL /* Count of transmit peak attempts */ +#define BMAC_DTCTR 0x23cUL /* Transmit defer timer */ +#define BMAC_NCCTR 0x240UL /* Transmit normal-collision counter */ +#define BMAC_FCCTR 0x244UL /* Transmit first-collision counter */ +#define BMAC_EXCTR 0x248UL /* Transmit excess-collision counter */ +#define BMAC_LTCTR 0x24cUL /* Transmit late-collision counter */ +#define BMAC_RSEED 0x250UL /* Transmit random number seed */ +#define BMAC_TXSMACHINE 0x254UL /* Transmit state machine */ + /* 0x258-->0x304, reserved */ +#define BMAC_RXSWRESET 0x308UL /* Receiver software reset */ +#define BMAC_RXCFG 0x30cUL /* Receiver config register */ +#define BMAC_RXPMAX 0x310UL /* Receive max pkt size */ +#define BMAC_RXPMIN 0x314UL /* Receive min pkt size */ +#define BMAC_MACADDR2 0x318UL /* Ether address register 2 */ +#define BMAC_MACADDR1 0x31cUL /* Ether address register 1 */ +#define BMAC_MACADDR0 0x320UL /* Ether address register 0 */ +#define BMAC_FRCTR 0x324UL /* Receive frame receive counter */ +#define BMAC_GLECTR 0x328UL /* Receive giant-length error counter */ +#define BMAC_UNALECTR 0x32cUL /* Receive unaligned error counter */ +#define BMAC_RCRCECTR 0x330UL /* Receive CRC error counter */ +#define BMAC_RXSMACHINE 0x334UL /* Receiver state machine */ +#define BMAC_RXCVALID 0x338UL /* Receiver code violation */ + /* 0x33c, reserved */ +#define BMAC_HTABLE3 0x340UL /* Hash table 3 */ +#define BMAC_HTABLE2 0x344UL /* Hash table 2 */ +#define BMAC_HTABLE1 0x348UL /* Hash table 1 */ +#define BMAC_HTABLE0 0x34cUL /* Hash table 0 */ +#define BMAC_AFILTER2 0x350UL /* Address filter 2 */ +#define BMAC_AFILTER1 0x354UL /* Address filter 1 */ +#define BMAC_AFILTER0 0x358UL /* Address filter 0 */ +#define BMAC_AFMASK 0x35cUL /* Address filter mask */ +#define BMAC_REG_SIZE 0x360UL + +/* BigMac XIF config register. */ +#define BIGMAC_XCFG_ODENABLE 0x00000001 /* Output driver enable */ +#define BIGMAC_XCFG_RESV 0x00000002 /* Reserved, write always as 1 */ +#define BIGMAC_XCFG_MLBACK 0x00000004 /* Loopback-mode MII enable */ +#define BIGMAC_XCFG_SMODE 0x00000008 /* Enable serial mode */ + +/* BigMAC status register. */ +#define BIGMAC_STAT_GOTFRAME 0x00000001 /* Received a frame */ +#define BIGMAC_STAT_RCNTEXP 0x00000002 /* Receive frame counter expired */ +#define BIGMAC_STAT_ACNTEXP 0x00000004 /* Align-error counter expired */ +#define BIGMAC_STAT_CCNTEXP 0x00000008 /* CRC-error counter expired */ +#define BIGMAC_STAT_LCNTEXP 0x00000010 /* Length-error counter expired */ +#define BIGMAC_STAT_RFIFOVF 0x00000020 /* Receive FIFO overflow */ +#define BIGMAC_STAT_CVCNTEXP 0x00000040 /* Code-violation counter expired */ +#define BIGMAC_STAT_SENTFRAME 0x00000100 /* Transmitted a frame */ +#define BIGMAC_STAT_TFIFO_UND 0x00000200 /* Transmit FIFO underrun */ +#define BIGMAC_STAT_MAXPKTERR 0x00000400 /* Max-packet size error */ +#define BIGMAC_STAT_NCNTEXP 0x00000800 /* Normal-collision counter expired */ +#define BIGMAC_STAT_ECNTEXP 0x00001000 /* Excess-collision counter expired */ +#define BIGMAC_STAT_LCCNTEXP 0x00002000 /* Late-collision counter expired */ +#define BIGMAC_STAT_FCNTEXP 0x00004000 /* First-collision counter expired */ +#define BIGMAC_STAT_DTIMEXP 0x00008000 /* Defer-timer expired */ + +/* BigMAC interrupt mask register. */ +#define BIGMAC_IMASK_GOTFRAME 0x00000001 /* Received a frame */ +#define BIGMAC_IMASK_RCNTEXP 0x00000002 /* Receive frame counter expired */ +#define BIGMAC_IMASK_ACNTEXP 0x00000004 /* Align-error counter expired */ +#define BIGMAC_IMASK_CCNTEXP 0x00000008 /* CRC-error counter expired */ +#define BIGMAC_IMASK_LCNTEXP 0x00000010 /* Length-error counter expired */ +#define BIGMAC_IMASK_RFIFOVF 0x00000020 /* Receive FIFO overflow */ +#define BIGMAC_IMASK_CVCNTEXP 0x00000040 /* Code-violation counter expired */ +#define BIGMAC_IMASK_SENTFRAME 0x00000100 /* Transmitted a frame */ +#define BIGMAC_IMASK_TFIFO_UND 0x00000200 /* Transmit FIFO underrun */ +#define BIGMAC_IMASK_MAXPKTERR 0x00000400 /* Max-packet size error */ +#define BIGMAC_IMASK_NCNTEXP 0x00000800 /* Normal-collision counter expired */ +#define BIGMAC_IMASK_ECNTEXP 0x00001000 /* Excess-collision counter expired */ +#define BIGMAC_IMASK_LCCNTEXP 0x00002000 /* Late-collision counter expired */ +#define BIGMAC_IMASK_FCNTEXP 0x00004000 /* First-collision counter expired */ +#define BIGMAC_IMASK_DTIMEXP 0x00008000 /* Defer-timer expired */ + +/* BigMac transmit config register. */ +#define BIGMAC_TXCFG_ENABLE 0x00000001 /* Enable the transmitter */ +#define BIGMAC_TXCFG_FIFO 0x00000010 /* Default tx fthresh... */ +#define BIGMAC_TXCFG_SMODE 0x00000020 /* Enable slow transmit mode */ +#define BIGMAC_TXCFG_CIGN 0x00000040 /* Ignore transmit collisions */ +#define BIGMAC_TXCFG_FCSOFF 0x00000080 /* Do not emit FCS */ +#define BIGMAC_TXCFG_DBACKOFF 0x00000100 /* Disable backoff */ +#define BIGMAC_TXCFG_FULLDPLX 0x00000200 /* Enable full-duplex */ + +/* BigMac receive config register. */ +#define BIGMAC_RXCFG_ENABLE 0x00000001 /* Enable the receiver */ +#define BIGMAC_RXCFG_FIFO 0x0000000e /* Default rx fthresh... */ +#define BIGMAC_RXCFG_PSTRIP 0x00000020 /* Pad byte strip enable */ +#define BIGMAC_RXCFG_PMISC 0x00000040 /* Enable promiscuous mode */ +#define BIGMAC_RXCFG_DERR 0x00000080 /* Disable error checking */ +#define BIGMAC_RXCFG_DCRCS 0x00000100 /* Disable CRC stripping */ +#define BIGMAC_RXCFG_ME 0x00000200 /* Receive packets addressed to me */ +#define BIGMAC_RXCFG_PGRP 0x00000400 /* Enable promisc group mode */ +#define BIGMAC_RXCFG_HENABLE 0x00000800 /* Enable the hash filter */ +#define BIGMAC_RXCFG_AENABLE 0x00001000 /* Enable the address filter */ + +/* The BigMAC PHY transceiver. Not nearly as sophisticated as the happy meal + * one. But it does have the "bit banger", oh baby. + */ +#define TCVR_TPAL 0x00UL +#define TCVR_MPAL 0x04UL +#define TCVR_REG_SIZE 0x08UL + +/* Frame commands. */ +#define FRAME_WRITE 0x50020000 +#define FRAME_READ 0x60020000 + +/* Tranceiver registers. */ +#define TCVR_PAL_SERIAL 0x00000001 /* Enable serial mode */ +#define TCVR_PAL_EXTLBACK 0x00000002 /* Enable external loopback */ +#define TCVR_PAL_MSENSE 0x00000004 /* Media sense */ +#define TCVR_PAL_LTENABLE 0x00000008 /* Link test enable */ +#define TCVR_PAL_LTSTATUS 0x00000010 /* Link test status (P1 only) */ + +/* Management PAL. */ +#define MGMT_PAL_DCLOCK 0x00000001 /* Data clock */ +#define MGMT_PAL_OENAB 0x00000002 /* Output enabler */ +#define MGMT_PAL_MDIO 0x00000004 /* MDIO Data/attached */ +#define MGMT_PAL_TIMEO 0x00000008 /* Transmit enable timeout error */ +#define MGMT_PAL_EXT_MDIO MGMT_PAL_MDIO +#define MGMT_PAL_INT_MDIO MGMT_PAL_TIMEO + +/* Here are some PHY addresses. */ +#define BIGMAC_PHY_EXTERNAL 0 /* External transceiver */ +#define BIGMAC_PHY_INTERNAL 1 /* Internal transceiver */ + +/* Ring descriptors and such, same as Quad Ethernet. */ +struct be_rxd { + u32 rx_flags; + u32 rx_addr; +}; + +#define RXD_OWN 0x80000000 /* Ownership. */ +#define RXD_UPDATE 0x10000000 /* Being Updated? */ +#define RXD_LENGTH 0x000007ff /* Packet Length. */ + +struct be_txd { + u32 tx_flags; + u32 tx_addr; +}; + +#define TXD_OWN 0x80000000 /* Ownership. */ +#define TXD_SOP 0x40000000 /* Start Of Packet */ +#define TXD_EOP 0x20000000 /* End Of Packet */ +#define TXD_UPDATE 0x10000000 /* Being Updated? */ +#define TXD_LENGTH 0x000007ff /* Packet Length. */ + +#define TX_RING_MAXSIZE 256 +#define RX_RING_MAXSIZE 256 + +#define TX_RING_SIZE 256 +#define RX_RING_SIZE 256 + +#define NEXT_RX(num) (((num) + 1) & (RX_RING_SIZE - 1)) +#define NEXT_TX(num) (((num) + 1) & (TX_RING_SIZE - 1)) +#define PREV_RX(num) (((num) - 1) & (RX_RING_SIZE - 1)) +#define PREV_TX(num) (((num) - 1) & (TX_RING_SIZE - 1)) + +#define TX_BUFFS_AVAIL(bp) \ + (((bp)->tx_old <= (bp)->tx_new) ? \ + (bp)->tx_old + (TX_RING_SIZE - 1) - (bp)->tx_new : \ + (bp)->tx_old - (bp)->tx_new - 1) + + +#define RX_COPY_THRESHOLD 256 +#define RX_BUF_ALLOC_SIZE (ETH_FRAME_LEN + (64 * 3)) + +struct bmac_init_block { + struct be_rxd be_rxd[RX_RING_MAXSIZE]; + struct be_txd be_txd[TX_RING_MAXSIZE]; +}; + +#define bib_offset(mem, elem) \ +((__u32)((unsigned long)(&(((struct bmac_init_block *)0)->mem[elem])))) + +/* Now software state stuff. */ +enum bigmac_transceiver { + external = 0, + internal = 1, + none = 2, +}; + +/* Timer state engine. */ +enum bigmac_timer_state { + ltrywait = 1, /* Forcing try of all modes, from fastest to slowest. */ + asleep = 2, /* Timer inactive. */ +}; + +struct bigmac { + void __iomem *gregs; /* QEC Global Registers */ + void __iomem *creg; /* QEC BigMAC Channel Registers */ + void __iomem *bregs; /* BigMAC Registers */ + void __iomem *tregs; /* BigMAC Transceiver */ + struct bmac_init_block *bmac_block; /* RX and TX descriptors */ + dma_addr_t bblock_dvma; /* RX and TX descriptors */ + + spinlock_t lock; + + struct sk_buff *rx_skbs[RX_RING_SIZE]; + struct sk_buff *tx_skbs[TX_RING_SIZE]; + + int rx_new, tx_new, rx_old, tx_old; + + int board_rev; /* BigMAC board revision. */ + + enum bigmac_transceiver tcvr_type; + unsigned int bigmac_bursts; + unsigned int paddr; + unsigned short sw_bmsr; /* SW copy of PHY BMSR */ + unsigned short sw_bmcr; /* SW copy of PHY BMCR */ + struct timer_list bigmac_timer; + enum bigmac_timer_state timer_state; + unsigned int timer_ticks; + + struct platform_device *qec_op; + struct platform_device *bigmac_op; + struct net_device *dev; +}; + +/* We use this to acquire receive skb's that we can DMA directly into. */ +#define ALIGNED_RX_SKB_ADDR(addr) \ + ((((unsigned long)(addr) + (64 - 1)) & ~(64 - 1)) - (unsigned long)(addr)) + +static inline struct sk_buff *big_mac_alloc_skb(unsigned int length, gfp_t gfp_flags) +{ + struct sk_buff *skb; + + skb = alloc_skb(length + 64, gfp_flags); + if(skb) { + int offset = ALIGNED_RX_SKB_ADDR(skb->data); + + if(offset) + skb_reserve(skb, offset); + } + return skb; +} + +#endif /* !(_SUNBMAC_H) */ -- cgit v1.2.3