/* $Id: DevPCNet.cpp 90447 2021-07-31 00:44:13Z vboxsync $ */ /** @file * DevPCNet - AMD PCnet-PCI II / PCnet-FAST III (Am79C970A / Am79C973) Ethernet Controller Emulation. * * This software was written to be compatible with the specifications: * AMD Am79C970A PCnet-PCI II Ethernet Controller Data-Sheet * AMD Publication# 19436 Rev:E Amendment/0 Issue Date: June 2000 * and * AMD Am79C973/Am79C975 PCnet-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller datasheet * AMD publication# 20510 Rev:E Amendment/0 Issue Date: August 2000 * and * AMD Am79C960 PCnet-ISA Single-Chip Ethernet Controller datasheet * AMD publication# 16907 Rev:B Amendment/0 Issue Date: May 1994 */ /* * Copyright (C) 2006-2020 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. * -------------------------------------------------------------------- * * This code is based on: * * AMD PCnet-PCI II (Am79C970A) emulation * * Copyright (c) 2004 Antony T Curtis * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ /********************************************************************************************************************************* * Header Files * *********************************************************************************************************************************/ #define LOG_GROUP LOG_GROUP_DEV_PCNET #include #include #include #include #include #include #include #include #include #include #ifdef IN_RING3 # include # include # include #endif #include "VBoxDD.h" /********************************************************************************************************************************* * Defined Constants And Macros * *********************************************************************************************************************************/ /* Enable this to catch writes to the ring descriptors instead of using excessive polling */ /* #define PCNET_NO_POLLING */ /* Enable to handle frequent io reads in the guest context (recommended) */ #define PCNET_GC_ENABLED /* PCNET_DEBUG_IO - Log6 */ /* PCNET_DEBUG_BCR - Log7 */ /* PCNET_DEBUG_CSR - Log8 */ /* PCNET_DEBUG_RMD - Log9 */ /* PCNET_DEBUG_TMD - Log10 */ /* PCNET_DEBUG_MATCH - Log11 */ /* PCNET_DEBUG_MII - Log12 */ #define PCNET_IOPORT_SIZE 0x20 #define PCNET_PNPMMIO_SIZE 0x20 #define PCNET_SAVEDSTATE_VERSION 10 #define BCR_MAX_RAP 50 #define MII_MAX_REG 32 #define CSR_MAX_REG 128 /** Maximum number of times we report a link down to the guest (failure to send frame) */ #define PCNET_MAX_LINKDOWN_REPORTED 3 /** Maximum frame size we handle */ #define MAX_FRAME 1536 #define PCNET_INST_NR (pThis->iInstance) /** @name Bus configuration registers * @{ */ #define BCR_MSRDA 0 #define BCR_MSWRA 1 #define BCR_MC 2 #define BCR_RESERVED3 3 #define BCR_LNKST 4 #define BCR_LED1 5 #define BCR_LED2 6 #define BCR_LED3 7 #define BCR_RESERVED8 8 #define BCR_FDC 9 /* 10 - 15 = reserved */ #define BCR_IOBASEL 16 /* Reserved */ #define BCR_IOBASEU 16 /* Reserved */ #define BCR_BSBC 18 #define BCR_EECAS 19 #define BCR_SWS 20 #define BCR_INTCON 21 /* Reserved */ #define BCR_PLAT 22 #define BCR_PCISVID 23 #define BCR_PCISID 24 #define BCR_SRAMSIZ 25 #define BCR_SRAMB 26 #define BCR_SRAMIC 27 #define BCR_EBADDRL 28 #define BCR_EBADDRU 29 #define BCR_EBD 30 #define BCR_STVAL 31 #define BCR_MIICAS 32 #define BCR_MIIADDR 33 #define BCR_MIIMDR 34 #define BCR_PCIVID 35 #define BCR_PMC_A 36 #define BCR_DATA0 37 #define BCR_DATA1 38 #define BCR_DATA2 39 #define BCR_DATA3 40 #define BCR_DATA4 41 #define BCR_DATA5 42 #define BCR_DATA6 43 #define BCR_DATA7 44 #define BCR_PMR1 45 #define BCR_PMR2 46 #define BCR_PMR3 47 /** @} */ /** @name Bus configuration sub register accessors. * @{ */ #define BCR_DWIO(S) !!((S)->aBCR[BCR_BSBC] & 0x0080) #define BCR_SSIZE32(S) !!((S)->aBCR[BCR_SWS ] & 0x0100) #define BCR_SWSTYLE(S) ((S)->aBCR[BCR_SWS ] & 0x00FF) /** @} */ /** @name CSR subregister accessors. * @{ */ #define CSR_INIT(S) !!((S)->aCSR[0] & 0x0001) /**< Init assertion */ #define CSR_STRT(S) !!((S)->aCSR[0] & 0x0002) /**< Start assertion */ #define CSR_STOP(S) !!((S)->aCSR[0] & 0x0004) /**< Stop assertion */ #define CSR_TDMD(S) !!((S)->aCSR[0] & 0x0008) /**< Transmit demand. (perform xmit poll now (readable, settable, not clearable) */ #define CSR_TXON(S) !!((S)->aCSR[0] & 0x0010) /**< Transmit on (readonly) */ #define CSR_RXON(S) !!((S)->aCSR[0] & 0x0020) /**< Receive On */ #define CSR_INEA(S) !!((S)->aCSR[0] & 0x0040) /**< Interrupt Enable */ #define CSR_LAPPEN(S) !!((S)->aCSR[3] & 0x0020) /**< Look Ahead Packet Processing Enable */ #define CSR_DXSUFLO(S) !!((S)->aCSR[3] & 0x0040) /**< Disable Transmit Stop on Underflow error */ #define CSR_ASTRP_RCV(S) !!((S)->aCSR[4] & 0x0400) /**< Auto Strip Receive */ #define CSR_DPOLL(S) !!((S)->aCSR[4] & 0x1000) /**< Disable Transmit Polling */ #define CSR_SPND(S) !!((S)->aCSR[5] & 0x0001) /**< Suspend */ #define CSR_LTINTEN(S) !!((S)->aCSR[5] & 0x4000) /**< Last Transmit Interrupt Enable */ #define CSR_TOKINTD(S) !!((S)->aCSR[5] & 0x8000) /**< Transmit OK Interrupt Disable */ #define CSR_STINT !!((S)->aCSR[7] & 0x0800) /**< Software Timer Interrupt */ #define CSR_STINTE !!((S)->aCSR[7] & 0x0400) /**< Software Timer Interrupt Enable */ #define CSR_DRX(S) !!((S)->aCSR[15] & 0x0001) /**< Disable Receiver */ #define CSR_DTX(S) !!((S)->aCSR[15] & 0x0002) /**< Disable Transmit */ #define CSR_LOOP(S) !!((S)->aCSR[15] & 0x0004) /**< Loopback Enable */ #define CSR_DRCVPA(S) !!((S)->aCSR[15] & 0x2000) /**< Disable Receive Physical Address */ #define CSR_DRCVBC(S) !!((S)->aCSR[15] & 0x4000) /**< Disable Receive Broadcast */ #define CSR_PROM(S) !!((S)->aCSR[15] & 0x8000) /**< Promiscuous Mode */ /** @} */ #if defined(RT_BIG_ENDIAN) || !defined(RT_LITTLE_ENDIAN) # error fix macros (and more in this file) for big-endian machines #endif /** @name CSR register accessors. * @{ */ #define CSR_IADR(S) (*(uint32_t*)((S)->aCSR + 1)) /**< Initialization Block Address */ #define CSR_CRBA(S) (*(uint32_t*)((S)->aCSR + 18)) /**< Current Receive Buffer Address */ #define CSR_CXBA(S) (*(uint32_t*)((S)->aCSR + 20)) /**< Current Transmit Buffer Address */ #define CSR_NRBA(S) (*(uint32_t*)((S)->aCSR + 22)) /**< Next Receive Buffer Address */ #define CSR_BADR(S) (*(uint32_t*)((S)->aCSR + 24)) /**< Base Address of Receive Ring */ #define CSR_NRDA(S) (*(uint32_t*)((S)->aCSR + 26)) /**< Next Receive Descriptor Address */ #define CSR_CRDA(S) (*(uint32_t*)((S)->aCSR + 28)) /**< Current Receive Descriptor Address */ #define CSR_BADX(S) (*(uint32_t*)((S)->aCSR + 30)) /**< Base Address of Transmit Descriptor */ #define CSR_NXDA(S) (*(uint32_t*)((S)->aCSR + 32)) /**< Next Transmit Descriptor Address */ #define CSR_CXDA(S) (*(uint32_t*)((S)->aCSR + 34)) /**< Current Transmit Descriptor Address */ #define CSR_NNRD(S) (*(uint32_t*)((S)->aCSR + 36)) /**< Next Next Receive Descriptor Address */ #define CSR_NNXD(S) (*(uint32_t*)((S)->aCSR + 38)) /**< Next Next Transmit Descriptor Address */ #define CSR_CRBC(S) ((S)->aCSR[40]) /**< Current Receive Byte Count */ #define CSR_CRST(S) ((S)->aCSR[41]) /**< Current Receive Status */ #define CSR_CXBC(S) ((S)->aCSR[42]) /**< Current Transmit Byte Count */ #define CSR_CXST(S) ((S)->aCSR[43]) /**< Current transmit status */ #define CSR_NRBC(S) ((S)->aCSR[44]) /**< Next Receive Byte Count */ #define CSR_NRST(S) ((S)->aCSR[45]) /**< Next Receive Status */ #define CSR_POLL(S) ((S)->aCSR[46]) /**< Transmit Poll Time Counter */ #define CSR_PINT(S) ((S)->aCSR[47]) /**< Transmit Polling Interval */ #define CSR_PXDA(S) (*(uint32_t*)((S)->aCSR + 60)) /**< Previous Transmit Descriptor Address*/ #define CSR_PXBC(S) ((S)->aCSR[62]) /**< Previous Transmit Byte Count */ #define CSR_PXST(S) ((S)->aCSR[63]) /**< Previous Transmit Status */ #define CSR_NXBA(S) (*(uint32_t*)((S)->aCSR + 64)) /**< Next Transmit Buffer Address */ #define CSR_NXBC(S) ((S)->aCSR[66]) /**< Next Transmit Byte Count */ #define CSR_NXST(S) ((S)->aCSR[67]) /**< Next Transmit Status */ #define CSR_RCVRC(S) ((S)->aCSR[72]) /**< Receive Descriptor Ring Counter */ #define CSR_XMTRC(S) ((S)->aCSR[74]) /**< Transmit Descriptor Ring Counter */ #define CSR_RCVRL(S) ((S)->aCSR[76]) /**< Receive Descriptor Ring Length */ #define CSR_XMTRL(S) ((S)->aCSR[78]) /**< Transmit Descriptor Ring Length */ #define CSR_MISSC(S) ((S)->aCSR[112]) /**< Missed Frame Count */ /** @} */ /** @name Version for the PCnet/FAST III 79C973 card * @{ */ #define CSR_VERSION_LOW_79C973 0x5003 /* the lower two bits are always 11b for AMD (JEDEC) */ #define CSR_VERSION_LOW_79C970A 0x1003 #define CSR_VERSION_LOW_79C960 0x3003 #define CSR_VERSION_HIGH 0x0262 /** @} */ /** Calculates the full physical address. */ #define PHYSADDR(S,A) ((A) | (S)->GCUpperPhys) /********************************************************************************************************************************* * Structures and Typedefs * *********************************************************************************************************************************/ /** * Emulated device types. */ enum PCNET_DEVICE_TYPE { DEV_AM79C970A = 0, /* PCnet-PCI II (PCI, 10 Mbps). */ DEV_AM79C973 = 1, /* PCnet-FAST III (PCI, 10/100 Mbps). */ DEV_AM79C960 = 2, /* PCnet-ISA (ISA, 10 Mbps, NE2100/NE1500T compatible) */ DEV_AM79C960_EB = 3 /* PCnet-ISA (ISA, 10 Mbps, Racal InterLan EtherBlaster compatible) */ }; #define PCNET_IS_PCI(pcnet) ((pcnet->uDevType == DEV_AM79C970A) || (pcnet->uDevType == DEV_AM79C973)) #define PCNET_IS_ISA(pcnet) ((pcnet->uDevType == DEV_AM79C960) || (pcnet->uDevType == DEV_AM79C960_EB)) /* * Note: Old adapters, including the original NE2100/NE1500T, used the LANCE (Am7990) or * possibly C-LANCE (Am79C90) chips. Those only had the RAP/RDP register and any PROMs were * decoded by external circuitry; as a consequence, different vendors used different layouts. * Several different variants are known: * * 1) Racal Interlan NI6510 (before PCnet-based EtherBlaster variants): * - RDP at iobase + 0x00 (16-bit) * - RAP at iobase + 0x02 (16-bit) * - reset at iobase + 0x04 (8-bit) * - config at iobase + 0x05 (8-bit) * - PROM at iobase + 0x08 * * 2) BICC Data Networks ISOLAN 4110-2 (ISA) / 4110-3 (MCA): * - PROM at iobase + 0x00 * - reset at iobase + 0x04 * - config at iobase + 0x05 * - RDP at iobase + 0x0c (16-bit) * - RAP at iobase + 0x0e (16-bit) * * 3) Novell NE2100/NE1500T, AMD Am2100, all PCnet chips: * - PROM at iobase + 0x00 * - RDP at iobase + 0x10 (16-bit) * - RAP at iobase + 0x12 (16-bit) * - reset at iobase + 0x14 (16-bit) * - BDP/IDP at iobase + 0x16 (16-bit) * * There were also non-busmastering LANCE adapters, such as the BICC 4110-1, DEC DEPCA, * or NTI 16. Those are uninteresting. * * Newer adapters based on the integrated PCnet-ISA (Am79C960) and later have a fixed * register layout compatible with the NE2100. However, they may still require different * drivers. At least two different incompatible drivers exist for PCnet-based cards: * Those from AMD and those from Racal InterLan for their EtherBlaster cards. The PROM * on EtherBlaster cards uses a different signature ('RD' instead of 'WW') and Racal's * drivers insist on the MAC address having the Racal-Datacom OUI (02 07 01). */ /** * PCNET state. * * @implements PDMIBASE * @implements PDMINETWORKDOWN * @implements PDMINETWORKCONFIG * @implements PDMILEDPORTS */ typedef struct PCNETSTATE { /** Software Interrupt timer - R3. */ TMTIMERHANDLE hTimerSoftInt; #ifndef PCNET_NO_POLLING /** Poll timer - R3. */ TMTIMERHANDLE hTimerPoll; #endif /** Restore timer. * This is used to disconnect and reconnect the link after a restore. */ TMTIMERHANDLE hTimerRestore; /** Transmit signaller. */ PDMTASKHANDLE hXmitTask; /** Register Address Pointer */ uint32_t u32RAP; /** Internal interrupt service */ int32_t iISR; /** ??? */ uint32_t u32Lnkst; /** Address of the RX descriptor table (ring). Loaded at init. */ RTGCPHYS32 GCRDRA; /** Address of the TX descriptor table (ring). Loaded at init. */ RTGCPHYS32 GCTDRA; uint8_t aPROM[16]; uint16_t aCSR[CSR_MAX_REG]; uint16_t aBCR[BCR_MAX_RAP]; uint16_t aMII[MII_MAX_REG]; /** Holds the bits which were really seen by the guest. Relevant are bits * 8..14 (IDON, TINT, RINT, MERR, MISS, CERR, BABL). We don't allow the * guest to clear any of these bits (by writing a ONE) before a bit was * seen by the guest. */ uint16_t u16CSR0LastSeenByGuest; /** The configured IRQ for ISA operation. */ uint8_t uIsaIrq; /** Alignment padding. */ uint8_t Alignment2[1+4]; /** Last time we polled the queues */ uint64_t u64LastPoll; /** Size of a RX/TX descriptor (8 or 16 bytes according to SWSTYLE */ int32_t iLog2DescSize; /** Bits 16..23 in 16-bit mode */ RTGCPHYS32 GCUpperPhys; /** Base port of the I/O space region. */ RTIOPORT IOPortBase; /** If set the link is currently up. */ bool fLinkUp; /** If set the link is temporarily down because of a saved state load. */ bool fLinkTempDown; /** Number of times we've reported the link down. */ uint32_t cLinkDownReported; /** The configured MAC address. */ RTMAC MacConfigured; /** Set if PCNETSTATER3::pDrvR3 is not NULL. */ bool fDriverAttached; /** Alignment padding. */ uint8_t bAlignment3; /** The LED. */ PDMLED Led; /** Access critical section. */ PDMCRITSECT CritSect; /** Event semaphore for blocking on receive. */ SUPSEMEVENT hEventOutOfRxSpace; /** We are waiting/about to start waiting for more receive buffers. */ bool volatile fMaybeOutOfSpace; /** True if we signal the guest that RX packets are missing. */ bool fSignalRxMiss; /** Alignment padding. */ uint8_t Alignment4[HC_ARCH_BITS == 64 ? 2 : 6]; #ifdef PCNET_NO_POLLING PGMPHYSHANDLERTYPE hNoPollingHandlerType; RTGCPHYS32 TDRAPhysOld; uint32_t cbTDRAOld; RTGCPHYS32 RDRAPhysOld; uint32_t cbRDRAOld; #endif /** Error counter for bad receive descriptors. */ uint32_t uCntBadRMD; /** Emulated device type. */ uint8_t uDevType; bool afAlignment5[3]; /** Link speed to be reported through CSR68. */ uint32_t u32LinkSpeed; /** MS to wait before we enable the link. */ uint32_t cMsLinkUpDelay; /** The device instance number (for logging). */ uint32_t iInstance; /** PCI Region \#0: I/O ports offset 0x10-0x1f. */ IOMIOPORTHANDLE hIoPortsPci; /** PCI Region \#0: I/O ports offset 0x00-0x0f. */ IOMIOPORTHANDLE hIoPortsPciAProm; /** PCI Region \#1: MMIO alternative to the I/O ports in region \#0. */ IOMMMIOHANDLE hMmioPci; /** ISA I/O ports offset 0x10-0x1f. */ IOMIOPORTHANDLE hIoPortsIsa; /** ISA I/O ports offset 0x00-0x0f. */ IOMIOPORTHANDLE hIoPortsIsaAProm; /** Backwards compatible shared memory region during state loading (before 4.3.6). */ PGMMMIO2HANDLE hMmio2Shared; /** The loopback transmit buffer (avoid stack allocations). */ uint8_t abLoopBuf[4096]; /** The recv buffer. */ uint8_t abRecvBuf[4096]; STAMCOUNTER StatReceiveBytes; STAMCOUNTER StatTransmitBytes; #ifdef VBOX_WITH_STATISTICS STAMPROFILEADV StatMMIOReadRZ; STAMPROFILEADV StatMMIOReadR3; STAMPROFILEADV StatMMIOWriteRZ; STAMPROFILEADV StatMMIOWriteR3; STAMPROFILEADV StatAPROMRead; STAMPROFILEADV StatAPROMWrite; STAMPROFILEADV StatIOReadRZ; STAMPROFILEADV StatIOReadR3; STAMPROFILEADV StatIOWriteRZ; STAMPROFILEADV StatIOWriteR3; STAMPROFILEADV StatTimer; STAMPROFILEADV StatReceive; STAMPROFILEADV StatTransmitR3; STAMPROFILEADV StatTransmitRZ; STAMCOUNTER StatTransmitCase1; STAMCOUNTER StatTransmitCase2; STAMPROFILE StatTransmitSendR3; STAMPROFILE StatTransmitSendRZ; STAMPROFILEADV StatTdtePollRZ; STAMPROFILEADV StatTdtePollR3; STAMPROFILEADV StatTmdStoreRZ; STAMPROFILEADV StatTmdStoreR3; STAMPROFILEADV StatRdtePollR3; STAMPROFILEADV StatRdtePollRZ; STAMPROFILE StatRxOverflow; STAMCOUNTER StatRxOverflowWakeup; STAMCOUNTER aStatXmitFlush[16]; STAMCOUNTER aStatXmitChainCounts[16]; STAMCOUNTER StatXmitSkipCurrent; STAMPROFILEADV StatInterrupt; STAMPROFILEADV StatPollTimer; STAMCOUNTER StatMIIReads; # ifdef PCNET_NO_POLLING STAMCOUNTER StatRCVRingWrite; STAMCOUNTER StatTXRingWrite; STAMCOUNTER StatRingWriteR3; STAMCOUNTER StatRingWriteR0; STAMCOUNTER StatRingWriteRC; STAMCOUNTER StatRingWriteFailedR3; STAMCOUNTER StatRingWriteFailedR0; STAMCOUNTER StatRingWriteFailedRC; STAMCOUNTER StatRingWriteOutsideR3; STAMCOUNTER StatRingWriteOutsideR0; STAMCOUNTER StatRingWriteOutsideRC; # endif #endif /* VBOX_WITH_STATISTICS */ } PCNETSTATE; /** Pointer to a shared PCnet state structure. */ typedef PCNETSTATE *PPCNETSTATE; /** * PCNET state for ring-3. * * @implements PDMIBASE * @implements PDMINETWORKDOWN * @implements PDMINETWORKCONFIG * @implements PDMILEDPORTS */ typedef struct PCNETSTATER3 { /** Pointer to the device instance. */ PPDMDEVINSR3 pDevIns; /** Pointer to the connector of the attached network driver. */ PPDMINETWORKUPR3 pDrv; /** Pointer to the attached network driver. */ R3PTRTYPE(PPDMIBASE) pDrvBase; /** LUN\#0 + status LUN: The base interface. */ PDMIBASE IBase; /** LUN\#0: The network port interface. */ PDMINETWORKDOWN INetworkDown; /** LUN\#0: The network config port interface. */ PDMINETWORKCONFIG INetworkConfig; /** Status LUN: The LED ports. */ PDMILEDPORTS ILeds; /** Partner of ILeds. */ R3PTRTYPE(PPDMILEDCONNECTORS) pLedsConnector; } PCNETSTATER3; /** Pointer to a PCnet state structure for ring-3. */ typedef PCNETSTATER3 *PPCNETSTATER3; /** * PCNET state for ring-0. */ typedef struct PCNETSTATER0 { /** Pointer to the connector of the attached network driver. */ PPDMINETWORKUPR0 pDrv; #ifdef PCNET_NO_POLLING DECLR0CALLBACKMEMBER(int, pfnEMInterpretInstructionR0, (PVM pVM, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, uint32_t *pcbSize)); #endif } PCNETSTATER0; /** Pointer to a PCnet state structure for ring-0. */ typedef PCNETSTATER0 *PPCNETSTATER0; /** * PCNET state for raw-mode. */ typedef struct PCNETSTATERC { /** Pointer to the connector of the attached network driver. */ PPDMINETWORKUPRC pDrv; #ifdef PCNET_NO_POLLING DECLRCCALLBACKMEMBER(int, pfnEMInterpretInstructionRC, (PVM pVM, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, uint32_t *pcbSize)); #endif } PCNETSTATERC; /** Pointer to a PCnet state structure for raw-mode. */ typedef PCNETSTATERC *PPCNETSTATERC; /** The PCnet state structure for the current context. */ typedef CTX_SUFF(PCNETSTATE) PCNETSTATECC; /** Pointer to a PCnet state structure for the current context. */ typedef CTX_SUFF(PPCNETSTATE) PPCNETSTATECC; /** @todo All structs: big endian? */ struct INITBLK16 { uint16_t mode; /**< copied into csr15 */ uint16_t padr1; /**< MAC 0..15 */ uint16_t padr2; /**< MAC 16..32 */ uint16_t padr3; /**< MAC 33..47 */ uint16_t ladrf1; /**< logical address filter 0..15 */ uint16_t ladrf2; /**< logical address filter 16..31 */ uint16_t ladrf3; /**< logical address filter 32..47 */ uint16_t ladrf4; /**< logical address filter 48..63 */ uint32_t rdra:24; /**< address of receive descriptor ring */ uint32_t res1:5; /**< reserved */ uint32_t rlen:3; /**< number of receive descriptor ring entries */ uint32_t tdra:24; /**< address of transmit descriptor ring */ uint32_t res2:5; /**< reserved */ uint32_t tlen:3; /**< number of transmit descriptor ring entries */ }; AssertCompileSize(INITBLK16, 24); /** bird: I've changed the type for the bitfields. They should only be 16-bit all together. * frank: I've changed the bitfiled types to uint32_t to prevent compiler warnings. */ struct INITBLK32 { uint16_t mode; /**< copied into csr15 */ uint16_t res1:4; /**< reserved */ uint16_t rlen:4; /**< number of receive descriptor ring entries */ uint16_t res2:4; /**< reserved */ uint16_t tlen:4; /**< number of transmit descriptor ring entries */ uint16_t padr1; /**< MAC 0..15 */ uint16_t padr2; /**< MAC 16..31 */ uint16_t padr3; /**< MAC 32..47 */ uint16_t res3; /**< reserved */ uint16_t ladrf1; /**< logical address filter 0..15 */ uint16_t ladrf2; /**< logical address filter 16..31 */ uint16_t ladrf3; /**< logical address filter 32..47 */ uint16_t ladrf4; /**< logical address filter 48..63 */ uint32_t rdra; /**< address of receive descriptor ring */ uint32_t tdra; /**< address of transmit descriptor ring */ }; AssertCompileSize(INITBLK32, 28); /** Transmit Message Descriptor */ typedef struct TMD { struct { uint32_t tbadr; /**< transmit buffer address */ } tmd0; struct { uint32_t bcnt:12; /**< buffer byte count (two's complement) */ uint32_t ones:4; /**< must be 1111b */ uint32_t res:7; /**< reserved */ uint32_t bpe:1; /**< bus parity error */ uint32_t enp:1; /**< end of packet */ uint32_t stp:1; /**< start of packet */ uint32_t def:1; /**< deferred */ uint32_t one:1; /**< exactly one retry was needed to transmit a frame */ uint32_t ltint:1; /**< suppress interrupts after successful transmission */ uint32_t nofcs:1; /**< when set, the state of DXMTFCS is ignored and transmitter FCS generation is activated. */ uint32_t err:1; /**< error occurred */ uint32_t own:1; /**< 0=owned by guest driver, 1=owned by controller */ } tmd1; struct { uint32_t trc:4; /**< transmit retry count */ uint32_t res:12; /**< reserved */ uint32_t tdr:10; /**< time domain reflectometry */ uint32_t rtry:1; /**< retry error */ uint32_t lcar:1; /**< loss of carrier */ uint32_t lcol:1; /**< late collision */ uint32_t exdef:1; /**< excessive deferral */ uint32_t uflo:1; /**< underflow error */ uint32_t buff:1; /**< out of buffers (ENP not found) */ } tmd2; struct { uint32_t res; /**< reserved for user defined space */ } tmd3; } TMD; AssertCompileSize(TMD, 16); /** Receive Message Descriptor */ typedef struct RMD { struct { uint32_t rbadr; /**< receive buffer address */ } rmd0; struct { uint32_t bcnt:12; /**< buffer byte count (two's complement) */ uint32_t ones:4; /**< must be 1111b */ uint32_t res:4; /**< reserved */ uint32_t bam:1; /**< broadcast address match */ uint32_t lafm:1; /**< logical filter address match */ uint32_t pam:1; /**< physical address match */ uint32_t bpe:1; /**< bus parity error */ uint32_t enp:1; /**< end of packet */ uint32_t stp:1; /**< start of packet */ uint32_t buff:1; /**< buffer error */ uint32_t crc:1; /**< crc error on incoming frame */ uint32_t oflo:1; /**< overflow error (lost all or part of incoming frame) */ uint32_t fram:1; /**< frame error */ uint32_t err:1; /**< error occurred */ uint32_t own:1; /**< 0=owned by guest driver, 1=owned by controller */ } rmd1; struct { uint32_t mcnt:12; /**< message byte count */ uint32_t zeros:4; /**< 0000b */ uint32_t rpc:8; /**< receive frame tag */ uint32_t rcc:8; /**< receive frame tag + reserved */ } rmd2; struct { uint32_t res; /**< reserved for user defined space */ } rmd3; } RMD; AssertCompileSize(RMD, 16); #ifndef VBOX_DEVICE_STRUCT_TESTCASE /********************************************************************************************************************************* * Internal Functions * *********************************************************************************************************************************/ static void pcnetPollRxTx(PPDMDEVINS pDevIns, PPCNETSTATE pThis, PPCNETSTATECC pThisCC); static void pcnetPollTimer(PPDMDEVINS pDevIns, PPCNETSTATE pThis, PPCNETSTATECC pThisCC); static void pcnetUpdateIrq(PPDMDEVINS pDevIns, PPCNETSTATE pThis); static uint32_t pcnetBCRReadU16(PPCNETSTATE pThis, uint32_t u32RAP); static VBOXSTRICTRC pcnetBCRWriteU16(PPDMDEVINS pDevIns, PPCNETSTATE pThis, uint32_t u32RAP, uint32_t val); #ifndef PCNET_NO_POLLING static void pcnetPollTimerStart(PPDMDEVINS pDevIns, PPCNETSTATE pThis); #endif static int pcnetXmitPending(PPDMDEVINS pDevIns, PPCNETSTATE pThis, PPCNETSTATECC pThisCC, bool fOnWorkerThread); #ifdef PCNET_NO_POLLING # ifndef IN_RING3 RT_C_DECLS_BEGIN DECLEXPORT(FNPGMRZPHYSPFHANDLER) pcnetHandleRingWritePf; RT_C_DECLS_END # endif #endif #define PRINT_TMD(T) Log10(( \ "TMD0 : TBADR=%#010x\n" \ "TMD1 : OWN=%d, ERR=%d, FCS=%d, LTI=%d, " \ "ONE=%d, DEF=%d, STP=%d, ENP=%d,\n" \ " BPE=%d, BCNT=%d\n" \ "TMD2 : BUF=%d, UFL=%d, EXD=%d, LCO=%d, " \ "LCA=%d, RTR=%d,\n" \ " TDR=%d, TRC=%d\n", \ (T)->tmd0.tbadr, \ (T)->tmd1.own, (T)->tmd1.err, (T)->tmd1.nofcs, \ (T)->tmd1.ltint, (T)->tmd1.one, (T)->tmd1.def, \ (T)->tmd1.stp, (T)->tmd1.enp, (T)->tmd1.bpe, \ 4096-(T)->tmd1.bcnt, \ (T)->tmd2.buff, (T)->tmd2.uflo, (T)->tmd2.exdef,\ (T)->tmd2.lcol, (T)->tmd2.lcar, (T)->tmd2.rtry, \ (T)->tmd2.tdr, (T)->tmd2.trc)) #define PRINT_RMD(R) Log9(( \ "RMD0 : RBADR=%#010x\n" \ "RMD1 : OWN=%d, ERR=%d, FRAM=%d, OFLO=%d, " \ "CRC=%d, BUFF=%d, STP=%d, ENP=%d,\n " \ "BPE=%d, PAM=%d, LAFM=%d, BAM=%d, ONES=%d, BCNT=%d\n" \ "RMD2 : RCC=%d, RPC=%d, MCNT=%d, ZEROS=%d\n", \ (R)->rmd0.rbadr, \ (R)->rmd1.own, (R)->rmd1.err, (R)->rmd1.fram, \ (R)->rmd1.oflo, (R)->rmd1.crc, (R)->rmd1.buff, \ (R)->rmd1.stp, (R)->rmd1.enp, (R)->rmd1.bpe, \ (R)->rmd1.pam, (R)->rmd1.lafm, (R)->rmd1.bam, \ (R)->rmd1.ones, 4096-(R)->rmd1.bcnt, \ (R)->rmd2.rcc, (R)->rmd2.rpc, (R)->rmd2.mcnt, \ (R)->rmd2.zeros)) /** * Checks if the link is up. * @returns true if the link is up. * @returns false if the link is down. */ DECLINLINE(bool) pcnetIsLinkUp(PPCNETSTATE pThis) { return pThis->fDriverAttached && !pThis->fLinkTempDown && pThis->fLinkUp; } /** * Memory write helper to handle PCI/ISA differences. * * @returns nothing. * @param pDevIns The device instance. * @param pThis Pointer to the PCNet device instance * @param GCPhys Guest physical memory address * @param pvBuf Host side buffer address * @param cbWrite Number of bytes to write */ static void pcnetPhysWrite(PPDMDEVINS pDevIns, PPCNETSTATE pThis, RTGCPHYS GCPhys, const void *pvBuf, size_t cbWrite) { if (!PCNET_IS_ISA(pThis)) PDMDevHlpPCIPhysWrite(pDevIns, GCPhys, pvBuf, cbWrite); else PDMDevHlpPhysWrite(pDevIns, GCPhys, pvBuf, cbWrite); } /** * Memory read helper to handle PCI/ISA differences. * * @returns nothing. * @param pDevIns The device instance. * @param pThis Pointer to the PCNet device instance. * @param GCPhys Guest physical memory address. * @param pvBuf Host side buffer address. * @param cbRead Number of bytes to read. */ static void pcnetPhysRead(PPDMDEVINS pDevIns, PPCNETSTATE pThis, RTGCPHYS GCPhys, void *pvBuf, size_t cbRead) { if (!PCNET_IS_ISA(pThis)) PDMDevHlpPCIPhysRead(pDevIns, GCPhys, pvBuf, cbRead); else PDMDevHlpPhysRead(pDevIns, GCPhys, pvBuf, cbRead); } /** * Load transmit message descriptor (TMD) if we own it. * Makes sure we read the OWN bit first, which requires issuing two reads if * the OWN bit is laid out in the second (D)WORD in memory. * * @param pDevIns The device instance. * @param pThis adapter private data * @param addr physical address of the descriptor * @return true if we own the descriptor, false otherwise */ DECLINLINE(bool) pcnetTmdTryLoad(PPDMDEVINS pDevIns, PPCNETSTATE pThis, TMD *tmd, RTGCPHYS32 addr) { /* Convert the in-memory format to the internal layout which corresponds to SWSTYLE=2. * Do not touch tmd if the OWN bit is not set (i.e. we don't own the descriptor). */ if (RT_UNLIKELY(BCR_SWSTYLE(pThis) == 0)) { uint16_t xda[4]; /* Corresponds to memory layout, last word unused. */ /* For SWSTYLE=0, the OWN bit is in the second WORD we need and must be read before the first WORD. */ pcnetPhysRead(pDevIns, pThis, addr + sizeof(uint16_t), (void*)&xda[1], 2 * sizeof(uint16_t)); if (!(xda[1] & RT_BIT(15))) return false; pcnetPhysRead(pDevIns, pThis, addr, (void*)&xda[0], sizeof(uint16_t)); ((uint32_t *)tmd)[0] = (uint32_t)xda[0] | ((uint32_t)(xda[1] & 0x00ff) << 16); /* TMD0, buffer address. */ ((uint32_t *)tmd)[1] = (uint32_t)xda[2] | ((uint32_t)(xda[1] & 0xff00) << 16); /* TMD1, buffer size and control bits. */ ((uint32_t *)tmd)[2] = 0; /* TMD2, status bits, set on error but not read. */ ((uint32_t *)tmd)[3] = 0; /* TMD3, user data, never accessed. */ } else if (RT_LIKELY(BCR_SWSTYLE(pThis) != 3)) { /* For SWSTYLE=2, the OWN bit is in the second DWORD we need and must be read first. */ uint32_t xda[2]; pcnetPhysRead(pDevIns, pThis, addr + sizeof(uint32_t), (void*)&xda[1], sizeof(uint32_t)); if (!(xda[1] & RT_BIT(31))) return false; pcnetPhysRead(pDevIns, pThis, addr, (void*)&xda[0], sizeof(uint32_t)); ((uint32_t *)tmd)[0] = xda[0]; /* TMD0, buffer address. */ ((uint32_t *)tmd)[1] = xda[1]; /* TMD1, buffer size and control bits. */ ((uint32_t *)tmd)[2] = 0; /* TMD2, status bits, set on error but not read. */ ((uint32_t *)tmd)[3] = 0; /* TMD3, user data, never accessed. */ } else { /* For SWSTYLE=3, the OWN bit is in the first DWORD we need, therefore a single read suffices. */ uint32_t xda[2]; pcnetPhysRead(pDevIns, pThis, addr + sizeof(uint32_t), (void*)&xda, sizeof(xda)); if (!(xda[0] & RT_BIT(31))) return false; ((uint32_t *)tmd)[0] = xda[1]; /* TMD0, buffer address. */ ((uint32_t *)tmd)[1] = xda[0]; /* TMD1, buffer size and control bits. */ ((uint32_t *)tmd)[2] = 0; /* TMD2, status bits, set on error but not read. */ ((uint32_t *)tmd)[3] = 0; /* TMD3, user data, never accessed. */ } return !!tmd->tmd1.own; } #if defined(IN_RING3) || defined(LOG_ENABLED) /** * Loads an entire transmit message descriptor. Used for logging/debugging. * * @param pDevIns The device instance. * @param pThis Adapter private data * @param addr Physical address of the descriptor */ DECLINLINE(void) pcnetTmdLoadAll(PPDMDEVINS pDevIns, PPCNETSTATE pThis, TMD *tmd, RTGCPHYS32 addr) { /* Convert the in-memory format to the internal layout which corresponds to SWSTYLE=2. */ if (RT_UNLIKELY(BCR_SWSTYLE(pThis) == 0)) { uint16_t xda[4]; /* For SWSTYLE=0, we have to do a bit of work. */ pcnetPhysRead(pDevIns, pThis, addr, (void*)&xda, sizeof(xda)); ((uint32_t *)tmd)[0] = (uint32_t)xda[0] | ((uint32_t)(xda[1] & 0x00ff) << 16); /* TMD0, buffer address. */ ((uint32_t *)tmd)[1] = (uint32_t)xda[2] | ((uint32_t)(xda[1] & 0xff00) << 16); /* TMD1, buffer size and control bits. */ ((uint32_t *)tmd)[2] = (uint32_t)xda[3] << 16; /* TMD2, status bits. */ ((uint32_t *)tmd)[3] = 0; /* TMD3, user data, not present for SWSTYLE=1. */ } else if (RT_LIKELY(BCR_SWSTYLE(pThis) != 3)) { /* For SWSTYLE=2, simply read the TMD as is. */ pcnetPhysRead(pDevIns, pThis, addr, (void*)tmd, sizeof(*tmd)); } else { /* For SWSTYLE=3, swap the first and third DWORD around. */ uint32_t xda[4]; pcnetPhysRead(pDevIns, pThis, addr, (void*)&xda, sizeof(xda)); ((uint32_t *)tmd)[0] = xda[2]; /* TMD0, buffer address. */ ((uint32_t *)tmd)[1] = xda[1]; /* TMD1, buffer size and control bits. */ ((uint32_t *)tmd)[2] = xda[0]; /* TMD2, status bits. */ ((uint32_t *)tmd)[3] = xda[3]; /* TMD3, user data. */ } } #endif /** * Store transmit message descriptor and hand it over to the host (the VM guest). * Make sure the cleared OWN bit gets written last. */ DECLINLINE(void) pcnetTmdStorePassHost(PPDMDEVINS pDevIns, PPCNETSTATE pThis, TMD *tmd, RTGCPHYS32 addr) { STAM_PROFILE_ADV_START(&pThis->CTX_SUFF_Z(StatTmdStore), a); if (RT_UNLIKELY(BCR_SWSTYLE(pThis) == 0)) { uint16_t xda[4]; /* Corresponds to memory layout, only two words used. */ /* For SWSTYLE=0, write the status word first, then the word containing the OWN bit. */ xda[1] = ((((uint32_t *)tmd)[0] >> 16) & 0xff) | ((((uint32_t *)tmd)[1]>>16) & 0xff00); xda[1] &= ~RT_BIT(15); xda[3] = ((uint32_t *)tmd)[2] >> 16; /** @todo The WORD containing status bits may not need to be written unless the ERR bit is set. */ pcnetPhysWrite(pDevIns, pThis, addr + 3 * sizeof(uint16_t), (void*)&xda[3], sizeof(uint16_t)); pcnetPhysWrite(pDevIns, pThis, addr + 1 * sizeof(uint16_t), (void*)&xda[1], sizeof(uint16_t)); } else if (RT_LIKELY(BCR_SWSTYLE(pThis) != 3)) { /* For SWSTYLE=0, write TMD2 first, then TMD1. */ /** @todo The DWORD containing status bits may not need to be written unless the ERR bit is set. */ pcnetPhysWrite(pDevIns, pThis, addr + 2 * sizeof(uint32_t), (uint32_t*)tmd + 2, sizeof(uint32_t)); ((uint32_t*)tmd)[1] &= ~RT_BIT(31); pcnetPhysWrite(pDevIns, pThis, addr + 1 * sizeof(uint32_t), (uint32_t*)tmd + 1, sizeof(uint32_t)); } else { uint32_t xda[2]; /* For SWSTYLE=3, two DWORDs can be written in one go because the OWN bit is last. */ xda[0] = ((uint32_t *)tmd)[2]; xda[1] = ((uint32_t *)tmd)[1]; xda[1] &= ~RT_BIT(31); pcnetPhysWrite(pDevIns, pThis, addr, (void*)&xda, sizeof(xda)); } STAM_PROFILE_ADV_STOP(&pThis->CTX_SUFF_Z(StatTmdStore), a); } /** * Load receive message descriptor * * Make sure we read the own flag first. * * @param pDevIns The device instance. * @param pThis Adapter private data. * @param addr Physical address of the descriptor. * @param fRetIfNotOwn Return immediately after reading the own flag if we * don't own the descriptor. * @returns true if we own the descriptor, false otherwise */ DECLINLINE(bool) pcnetRmdLoad(PPDMDEVINS pDevIns, PPCNETSTATE pThis, RMD *rmd, RTGCPHYS32 addr, bool fRetIfNotOwn) { uint8_t ownbyte; if (RT_UNLIKELY(BCR_SWSTYLE(pThis) == 0)) { uint16_t rda[4]; pcnetPhysRead(pDevIns, pThis, addr+3, &ownbyte, 1); if (!(ownbyte & 0x80) && fRetIfNotOwn) return false; pcnetPhysRead(pDevIns, pThis, addr, (void*)&rda[0], sizeof(rda)); ((uint32_t *)rmd)[0] = (uint32_t)rda[0] | ((rda[1] & 0x00ff) << 16); ((uint32_t *)rmd)[1] = (uint32_t)rda[2] | ((rda[1] & 0xff00) << 16); ((uint32_t *)rmd)[2] = (uint32_t)rda[3]; ((uint32_t *)rmd)[3] = 0; } else if (RT_LIKELY(BCR_SWSTYLE(pThis) != 3)) { pcnetPhysRead(pDevIns, pThis, addr+7, &ownbyte, 1); if (!(ownbyte & 0x80) && fRetIfNotOwn) return false; pcnetPhysRead(pDevIns, pThis, addr, (void*)rmd, 16); } else { uint32_t rda[4]; pcnetPhysRead(pDevIns, pThis, addr+7, &ownbyte, 1); if (!(ownbyte & 0x80) && fRetIfNotOwn) return false; pcnetPhysRead(pDevIns, pThis, addr, (void*)&rda[0], sizeof(rda)); ((uint32_t *)rmd)[0] = rda[2]; ((uint32_t *)rmd)[1] = rda[1]; ((uint32_t *)rmd)[2] = rda[0]; ((uint32_t *)rmd)[3] = rda[3]; } /* Double check the own bit; guest drivers might be buggy and lock prefixes in the recompiler are ignored by other threads. */ #ifdef DEBUG if (rmd->rmd1.own == 1 && !(ownbyte & 0x80)) Log(("pcnetRmdLoad: own bit flipped while reading!!\n")); #endif if (!(ownbyte & 0x80)) rmd->rmd1.own = 0; return !!rmd->rmd1.own; } /** * Store receive message descriptor and hand it over to the host (the VM guest). * Make sure that all data are transmitted before we clear the own flag. */ DECLINLINE(void) pcnetRmdStorePassHost(PPDMDEVINS pDevIns, PPCNETSTATE pThis, RMD *rmd, RTGCPHYS32 addr) { if (RT_UNLIKELY(BCR_SWSTYLE(pThis) == 0)) { uint16_t rda[4]; rda[0] = ((uint32_t *)rmd)[0] & 0xffff; rda[1] = ((((uint32_t *)rmd)[0]>>16) & 0xff) | ((((uint32_t *)rmd)[1]>>16) & 0xff00); rda[2] = ((uint32_t *)rmd)[1] & 0xffff; rda[3] = ((uint32_t *)rmd)[2] & 0xffff; rda[1] |= 0x8000; pcnetPhysWrite(pDevIns, pThis, addr, (void*)&rda[0], sizeof(rda)); rda[1] &= ~0x8000; pcnetPhysWrite(pDevIns, pThis, addr+3, (uint8_t*)rda + 3, 1); } else if (RT_LIKELY(BCR_SWSTYLE(pThis) != 3)) { ((uint32_t*)rmd)[1] |= 0x80000000; pcnetPhysWrite(pDevIns, pThis, addr, (void*)rmd, 12); ((uint32_t*)rmd)[1] &= ~0x80000000; pcnetPhysWrite(pDevIns, pThis, addr+7, (uint8_t*)rmd + 7, 1); } else { uint32_t rda[3]; rda[0] = ((uint32_t *)rmd)[2]; rda[1] = ((uint32_t *)rmd)[1]; rda[2] = ((uint32_t *)rmd)[0]; rda[1] |= 0x80000000; pcnetPhysWrite(pDevIns, pThis, addr, (void*)&rda[0], sizeof(rda)); rda[1] &= ~0x80000000; pcnetPhysWrite(pDevIns, pThis, addr+7, (uint8_t*)rda + 7, 1); } } #ifdef IN_RING3 /** * Read+Write a TX/RX descriptor to prevent PDMDevHlpPCIPhysWrite() allocating * pages later when we shouldn't schedule to EMT. Temporarily hack. */ static void pcnetDescTouch(PPDMDEVINS pDevIns, PPCNETSTATE pThis, RTGCPHYS32 addr) { uint8_t aBuf[16]; size_t cbDesc; if (RT_UNLIKELY(BCR_SWSTYLE(pThis) == 0)) cbDesc = 8; else cbDesc = 16; pcnetPhysRead(pDevIns, pThis, addr, aBuf, cbDesc); pcnetPhysWrite(pDevIns, pThis, addr, aBuf, cbDesc); } #endif /* IN_RING3 */ /** Checks if it's a bad (as in invalid) RMD.*/ #define IS_RMD_BAD(rmd) ((rmd).rmd1.ones != 15) /** The network card is the owner of the RDTE/TDTE, actually it is this driver */ #define CARD_IS_OWNER(desc) (((desc) & 0x8000)) /** The host is the owner of the RDTE/TDTE -- actually the VM guest. */ #define HOST_IS_OWNER(desc) (!((desc) & 0x8000)) #ifndef ETHER_IS_MULTICAST /* Net/Open BSD macro it seems */ #define ETHER_IS_MULTICAST(a) ((*(uint8_t *)(a)) & 1) #endif #define ETHER_ADDR_LEN ETH_ALEN #define ETH_ALEN 6 #pragma pack(1) struct ether_header /** @todo Use RTNETETHERHDR */ { uint8_t ether_dhost[ETH_ALEN]; /**< destination ethernet address */ uint8_t ether_shost[ETH_ALEN]; /**< source ethernet address */ uint16_t ether_type; /**< packet type ID field */ }; #pragma pack() #define PRINT_PKTHDR(BUF) do { \ struct ether_header *hdr = (struct ether_header *)(BUF); \ Log12(("#%d packet dhost=%02x:%02x:%02x:%02x:%02x:%02x, shost=%02x:%02x:%02x:%02x:%02x:%02x, type=%#06x (bcast=%d)\n", \ PCNET_INST_NR, \ hdr->ether_dhost[0],hdr->ether_dhost[1],hdr->ether_dhost[2], \ hdr->ether_dhost[3],hdr->ether_dhost[4],hdr->ether_dhost[5], \ hdr->ether_shost[0],hdr->ether_shost[1],hdr->ether_shost[2], \ hdr->ether_shost[3],hdr->ether_shost[4],hdr->ether_shost[5], \ htons(hdr->ether_type), \ !!ETHER_IS_MULTICAST(hdr->ether_dhost))); \ } while (0) #define MULTICAST_FILTER_LEN 8 DECLINLINE(uint32_t) lnc_mchash(const uint8_t *ether_addr) { #define LNC_POLYNOMIAL 0xEDB88320UL uint32_t crc = 0xFFFFFFFF; int idx, bit; uint8_t data; for (idx = 0; idx < ETHER_ADDR_LEN; idx++) { for (data = *ether_addr++, bit = 0; bit < MULTICAST_FILTER_LEN; bit++) { crc = (crc >> 1) ^ (((crc ^ data) & 1) ? LNC_POLYNOMIAL : 0); data >>= 1; } } return crc; #undef LNC_POLYNOMIAL } #define CRC(crc, ch) (crc = (crc >> 8) ^ crctab[(crc ^ (ch)) & 0xff]) /* generated using the AUTODIN II polynomial * x^32 + x^26 + x^23 + x^22 + x^16 + * x^12 + x^11 + x^10 + x^8 + x^7 + x^5 + x^4 + x^2 + x^1 + 1 */ static const uint32_t crctab[256] = { 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d, }; DECLINLINE(int) padr_match(PPCNETSTATE pThis, const uint8_t *buf, size_t size) { struct ether_header *hdr = (struct ether_header *)buf; int result; #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) result = !CSR_DRCVPA(pThis) && !memcmp(hdr->ether_dhost, pThis->aCSR + 12, 6); #else uint8_t padr[6]; padr[0] = pThis->aCSR[12] & 0xff; padr[1] = pThis->aCSR[12] >> 8; padr[2] = pThis->aCSR[13] & 0xff; padr[3] = pThis->aCSR[13] >> 8; padr[4] = pThis->aCSR[14] & 0xff; padr[5] = pThis->aCSR[14] >> 8; result = !CSR_DRCVPA(pThis) && !memcmp(hdr->ether_dhost, padr, 6); #endif Log11(("#%d packet dhost=%02x:%02x:%02x:%02x:%02x:%02x, padr=%02x:%02x:%02x:%02x:%02x:%02x => %d\n", PCNET_INST_NR, hdr->ether_dhost[0],hdr->ether_dhost[1],hdr->ether_dhost[2], hdr->ether_dhost[3],hdr->ether_dhost[4],hdr->ether_dhost[5], pThis->aCSR[12] & 0xff, pThis->aCSR[12] >> 8, pThis->aCSR[13] & 0xff, pThis->aCSR[13] >> 8, pThis->aCSR[14] & 0xff, pThis->aCSR[14] >> 8, result)); RT_NOREF_PV(size); return result; } DECLINLINE(int) padr_bcast(PPCNETSTATE pThis, const uint8_t *buf, size_t size) { static uint8_t aBCAST[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; struct ether_header *hdr = (struct ether_header *)buf; int result = !CSR_DRCVBC(pThis) && !memcmp(hdr->ether_dhost, aBCAST, 6); Log11(("#%d padr_bcast result=%d\n", PCNET_INST_NR, result)); RT_NOREF_PV(size); return result; } static int ladr_match(PPCNETSTATE pThis, const uint8_t *buf, size_t size) { struct ether_header *hdr = (struct ether_header *)buf; if (RT_UNLIKELY(hdr->ether_dhost[0] & 0x01) && ((uint64_t *)&pThis->aCSR[8])[0] != 0LL) { int index; #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) index = lnc_mchash(hdr->ether_dhost) >> 26; return ((uint8_t*)(pThis->aCSR + 8))[index >> 3] & (1 << (index & 7)); #else uint8_t ladr[8]; ladr[0] = pThis->aCSR[8] & 0xff; ladr[1] = pThis->aCSR[8] >> 8; ladr[2] = pThis->aCSR[9] & 0xff; ladr[3] = pThis->aCSR[9] >> 8; ladr[4] = pThis->aCSR[10] & 0xff; ladr[5] = pThis->aCSR[10] >> 8; ladr[6] = pThis->aCSR[11] & 0xff; ladr[7] = pThis->aCSR[11] >> 8; index = lnc_mchash(hdr->ether_dhost) >> 26; return (ladr[index >> 3] & (1 << (index & 7))); #endif } RT_NOREF_PV(size); return 0; } /** * Get the receive descriptor ring address with a given index. */ DECLINLINE(RTGCPHYS32) pcnetRdraAddr(PPCNETSTATE pThis, int idx) { return pThis->GCRDRA + ((CSR_RCVRL(pThis) - idx) << pThis->iLog2DescSize); } /** * Get the transmit descriptor ring address with a given index. */ DECLINLINE(RTGCPHYS32) pcnetTdraAddr(PPCNETSTATE pThis, int idx) { return pThis->GCTDRA + ((CSR_XMTRL(pThis) - idx) << pThis->iLog2DescSize); } #undef htonl #define htonl(x) ASMByteSwapU32(x) #undef htons #define htons(x) ( (((x) & 0xff00) >> 8) | (((x) & 0x00ff) << 8) ) #ifdef PCNET_NO_POLLING # ifndef IN_RING3 /** * @callback_method_impl{FNPGMRZPHYSPFHANDLER, * \#PF write access handler for a PCNET ring.} * * @remarks The @a pvUser argument points to the PCNETSTATE. */ DECLEXPORT(int) pcnetHandleRingWritePf(PVM pVM, PVMCPU pVCpu, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, RTGCPHYS GCPhysFault, void *pvUser) { PPCNETSTATE pThis = (PPCNETSTATE)pvUser; Log(("#%d pcnetHandleRingWritePf: write to %#010x\n", PCNET_INST_NR, GCPhysFault)); uint32_t cb; int rc = pThis->CTX_SUFF(pfnEMInterpretInstruction)(pVM, pRegFrame, pvFault, &cb); if (RT_SUCCESS(rc) && cb) { if ( (GCPhysFault >= pThis->GCTDRA && GCPhysFault + cb < pcnetTdraAddr(pThis, 0)) # ifdef PCNET_MONITOR_RECEIVE_RING || (GCPhysFault >= pThis->GCRDRA && GCPhysFault + cb < pcnetRdraAddr(pThis, 0)) # endif ) { uint32_t offsetTDRA = (GCPhysFault - pThis->GCTDRA); int rc = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_SEM_BUSY); if (RT_SUCCESS(rc)) { STAM_COUNTER_INC(&pThis->CTX_SUFF(StatRingWrite)); /* Check if we can do something now */ pcnetPollRxTx(pDevIns, pThis, pThisCC); pcnetUpdateIrq(pDevIns, pThis); PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect); return VINF_SUCCESS; } } else { STAM_COUNTER_INC(&pThis->CTX_SUFF(StatRingWriteOutside)); return VINF_SUCCESS; /* outside of the ring range */ } } STAM_COUNTER_INC(&pThis->CTX_SUFF(StatRingWriteFailed)); ; return VINF_IOM_R3_MMIO_WRITE; /* handle in ring3 */ } # endif /* !IN_RING3 */ /** * @callback_method_impl{FNPGMPHYSHANDLER, * Write access handler for a PCNET ring.} */ PGM_ALL_CB_DECL(VBOXSTRICTRC) pcnetHandleRingWrite(PVM pVM, PVMCPU pVCpu, RTGCPHYS GCPhys, void *pvPhys, void *pvBuf, size_t cbBuf, PGMACCESSTYPE enmAccessType, PGMACCESSORIGIN enmOrigin, void *pvUser) { PPDMDEVINS pDevIns = (PPDMDEVINS)pvUser; PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); Log(("#%d pcnetHandleRingWrite: write to %#010x\n", PCNET_INST_NR, GCPhys)); # ifdef VBOX_WITH_STATISTICS STAM_COUNTER_INC(&pThis->CTX_SUFF(StatRingWrite)); if (GCPhys >= pThis->GCRDRA && GCPhys < pcnetRdraAddr(pThis, 0)) STAM_COUNTER_INC(&pThis->StatRCVRingWrite); else if (GCPhys >= pThis->GCTDRA && GCPhys < pcnetTdraAddr(pThis, 0)) STAM_COUNTER_INC(&pThis->StatTXRingWrite); # endif /* Perform the actual write */ memcpy((char *)pvPhys, pvBuf, cbBuf); /* Writes done by our code don't require polling of course */ if (PDMDevHlpCritSectIsOwner(pDevIns, &pThis->CritSect) == false) { if ( (GCPhys >= pThis->GCTDRA && GCPhys + cbBuf < pcnetTdraAddr(pThis, 0)) # ifdef PCNET_MONITOR_RECEIVE_RING || (GCPhys >= pThis->GCRDRA && GCPhys + cbBuf < pcnetRdraAddr(pThis, 0)) # endif ) { int const rcLock = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_SEM_BUSY); PDM_CRITSECT_RELEASE_ASSERT_RC_DEV(pDevIns, &pThis->CritSect, rcLock); /* Check if we can do something now */ pcnetPollRxTx(pDevIns, pThis, pThisCC); pcnetUpdateIrq(pDevIns, pThis); PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect); } } return VINF_SUCCESS; } #endif /* PCNET_NO_POLLING */ static void pcnetSoftReset(PPCNETSTATE pThis) { Log(("#%d pcnetSoftReset:\n", PCNET_INST_NR)); pThis->u32Lnkst = 0x40; pThis->GCRDRA = 0; pThis->GCTDRA = 0; pThis->u32RAP = 0; pThis->aCSR[0] = 0x0004; pThis->aCSR[3] = 0x0000; pThis->aCSR[4] = 0x0115; pThis->aCSR[5] = 0x0000; pThis->aCSR[6] = 0x0000; pThis->aCSR[8] = 0; pThis->aCSR[9] = 0; pThis->aCSR[10] = 0; pThis->aCSR[11] = 0; pThis->aCSR[12] = RT_LE2H_U16(((uint16_t *)&pThis->aPROM[0])[0]); pThis->aCSR[13] = RT_LE2H_U16(((uint16_t *)&pThis->aPROM[0])[1]); pThis->aCSR[14] = RT_LE2H_U16(((uint16_t *)&pThis->aPROM[0])[2]); pThis->aCSR[15] &= 0x21c4; CSR_RCVRC(pThis) = 1; CSR_XMTRC(pThis) = 1; CSR_RCVRL(pThis) = 1; CSR_XMTRL(pThis) = 1; pThis->aCSR[80] = 0x1410; switch (pThis->uDevType) { default: case DEV_AM79C970A: pThis->aCSR[88] = CSR_VERSION_LOW_79C970A; pThis->aCSR[89] = CSR_VERSION_HIGH; break; case DEV_AM79C973: pThis->aCSR[88] = CSR_VERSION_LOW_79C973; pThis->aCSR[89] = CSR_VERSION_HIGH; break; case DEV_AM79C960: case DEV_AM79C960_EB: pThis->aCSR[88] = CSR_VERSION_LOW_79C960; pThis->aCSR[89] = 0x0000; break; } pThis->aCSR[94] = 0x0000; pThis->aCSR[100] = 0x0200; pThis->aCSR[103] = 0x0105; CSR_MISSC(pThis) = 0; pThis->aCSR[114] = 0x0000; pThis->aCSR[122] = 0x0000; pThis->aCSR[124] = 0x0000; } /** * Check if we have to send an interrupt to the guest. An interrupt can occur on * - csr0 (written quite often) * - csr4 (only written by pcnetSoftReset(), pcnetStop() or by the guest driver) * - csr5 (only written by pcnetSoftReset(), pcnetStop or by the driver guest) */ static void pcnetUpdateIrq(PPDMDEVINS pDevIns, PPCNETSTATE pThis) { int iISR = 0; uint16_t csr0 = pThis->aCSR[0]; csr0 &= ~0x0080; /* clear INTR */ STAM_PROFILE_ADV_START(&pThis->StatInterrupt, a); /* Linux guests set csr4=0x0915 * W2k guests set csr3=0x4940 (disable BABL, MERR, IDON, DXSUFLO */ #if 1 if ( ( (csr0 & ~pThis->aCSR[3]) & 0x5f00) || (((pThis->aCSR[4]>>1) & ~pThis->aCSR[4]) & 0x0115) || (((pThis->aCSR[5]>>1) & pThis->aCSR[5]) & 0x0048)) #else if ( ( !(pThis->aCSR[3] & 0x4000) && !!(csr0 & 0x4000)) /* BABL */ ||( !(pThis->aCSR[3] & 0x1000) && !!(csr0 & 0x1000)) /* MISS */ ||( !(pThis->aCSR[3] & 0x0100) && !!(csr0 & 0x0100)) /* IDON */ ||( !(pThis->aCSR[3] & 0x0200) && !!(csr0 & 0x0200)) /* TINT */ ||( !(pThis->aCSR[3] & 0x0400) && !!(csr0 & 0x0400)) /* RINT */ ||( !(pThis->aCSR[3] & 0x0800) && !!(csr0 & 0x0800)) /* MERR */ ||( !(pThis->aCSR[4] & 0x0001) && !!(pThis->aCSR[4] & 0x0002)) /* JAB */ ||( !(pThis->aCSR[4] & 0x0004) && !!(pThis->aCSR[4] & 0x0008)) /* TXSTRT */ ||( !(pThis->aCSR[4] & 0x0010) && !!(pThis->aCSR[4] & 0x0020)) /* RCVO */ ||( !(pThis->aCSR[4] & 0x0100) && !!(pThis->aCSR[4] & 0x0200)) /* MFCO */ ||(!!(pThis->aCSR[5] & 0x0040) && !!(pThis->aCSR[5] & 0x0080)) /* EXDINT */ ||(!!(pThis->aCSR[5] & 0x0008) && !!(pThis->aCSR[5] & 0x0010)) /* MPINT */) #endif { iISR = !!(csr0 & 0x0040); /* CSR_INEA */ csr0 |= 0x0080; /* set INTR */ } #ifdef VBOX if (pThis->aCSR[4] & 0x0080) /* UINTCMD */ { pThis->aCSR[4] &= ~0x0080; /* clear UINTCMD */ pThis->aCSR[4] |= 0x0040; /* set UINT */ Log(("#%d user int\n", PCNET_INST_NR)); } if (pThis->aCSR[4] & csr0 & 0x0040 /* CSR_INEA */) { csr0 |= 0x0080; /* set INTR */ iISR = 1; } #else /* !VBOX */ if (!!(pThis->aCSR[4] & 0x0080) && CSR_INEA(pThis)) /* UINTCMD */ { pThis->aCSR[4] &= ~0x0080; pThis->aCSR[4] |= 0x0040; /* set UINT */ csr0 |= 0x0080; /* set INTR */ iISR = 1; Log(("#%d user int\n", PCNET_INST_NR)); } #endif /* !VBOX */ #if 1 if (((pThis->aCSR[5]>>1) & pThis->aCSR[5]) & 0x0500) #else if ( (!!(pThis->aCSR[5] & 0x0400) && !!(pThis->aCSR[5] & 0x0800)) /* SINT */ ||(!!(pThis->aCSR[5] & 0x0100) && !!(pThis->aCSR[5] & 0x0200)) /* SLPINT */) #endif { iISR = 1; csr0 |= 0x0080; /* INTR */ } if ((pThis->aCSR[7] & 0x0C00) == 0x0C00) /* STINT + STINTE */ iISR = 1; pThis->aCSR[0] = csr0; Log2(("#%d set irq iISR=%d\n", PCNET_INST_NR, iISR)); /* normal path is to _not_ change the IRQ status */ if (RT_UNLIKELY(iISR != pThis->iISR)) { if (!PCNET_IS_ISA(pThis)) { Log(("#%d INTA=%d\n", PCNET_INST_NR, iISR)); PDMDevHlpPCISetIrq(pDevIns, 0, iISR); } else { Log(("#%d IRQ=%d, state=%d\n", PCNET_INST_NR, pThis->uIsaIrq, iISR)); PDMDevHlpISASetIrq(pDevIns, pThis->uIsaIrq, iISR); } pThis->iISR = iISR; } STAM_PROFILE_ADV_STOP(&pThis->StatInterrupt, a); } #ifdef IN_RING3 # ifdef PCNET_NO_POLLING static void pcnetR3UpdateRingHandlers(PPCNETSTATE pThis) { PPDMDEVINS pDevIns = pDevIns; int rc; Log(("pcnetR3UpdateRingHandlers TD %RX32 size %#x -> %RX32 ?size? %#x\n", pThis->TDRAPhysOld, pThis->cbTDRAOld, pThis->GCTDRA, pcnetTdraAddr(pThis, 0))); Log(("pcnetR3UpdateRingHandlers RX %RX32 size %#x -> %RX32 ?size? %#x\n", pThis->RDRAPhysOld, pThis->cbRDRAOld, pThis->GCRDRA, pcnetRdraAddr(pThis, 0))); /** @todo unregister order not correct! */ # ifdef PCNET_MONITOR_RECEIVE_RING if (pThis->GCRDRA != pThis->RDRAPhysOld || CSR_RCVRL(pThis) != pThis->cbRDRAOld) { if (pThis->RDRAPhysOld != 0) PGMHandlerPhysicalDeregister(PDMDevHlpGetVM(pDevIns), pThis->RDRAPhysOld & ~PAGE_OFFSET_MASK); rc = PGMHandlerPhysicalRegister(PDMDevHlpGetVM(pDevIns), pThis->GCRDRA & ~PAGE_OFFSET_MASK, RT_ALIGN(pcnetRdraAddr(pThis, 0), PAGE_SIZE) - 1, pThis->hNoPollingHandlerType, pDevIns, pThis->pDevInsHC->pvInstanceDataHC, pThis->pDevInsHC->pvInstanceDataRC, "PCnet receive ring write access handler"); AssertRC(rc); pThis->RDRAPhysOld = pThis->GCRDRA; pThis->cbRDRAOld = pcnetRdraAddr(pThis, 0); } # endif /* PCNET_MONITOR_RECEIVE_RING */ # ifdef PCNET_MONITOR_RECEIVE_RING /* 3 possibilities: * 1) TDRA on different physical page as RDRA * 2) TDRA completely on same physical page as RDRA * 3) TDRA & RDRA overlap partly with different physical pages */ RTGCPHYS32 RDRAPageStart = pThis->GCRDRA & ~PAGE_OFFSET_MASK; RTGCPHYS32 RDRAPageEnd = (pcnetRdraAddr(pThis, 0) - 1) & ~PAGE_OFFSET_MASK; RTGCPHYS32 TDRAPageStart = pThis->GCTDRA & ~PAGE_OFFSET_MASK; RTGCPHYS32 TDRAPageEnd = (pcnetTdraAddr(pThis, 0) - 1) & ~PAGE_OFFSET_MASK; if ( RDRAPageStart > TDRAPageEnd || TDRAPageStart > RDRAPageEnd) { # endif /* PCNET_MONITOR_RECEIVE_RING */ /* 1) */ if (pThis->GCTDRA != pThis->TDRAPhysOld || CSR_XMTRL(pThis) != pThis->cbTDRAOld) { if (pThis->TDRAPhysOld != 0) PGMHandlerPhysicalDeregister(PDMDevHlpGetVM(pDevIns), pThis->TDRAPhysOld & ~PAGE_OFFSET_MASK); rc = PGMHandlerPhysicalRegister(PDMDevHlpGetVM(pDevIns), pThis->GCTDRA & ~PAGE_OFFSET_MASK, RT_ALIGN(pcnetTdraAddr(pThis, 0), PAGE_SIZE) - 1, pThis->hNoPollingHandlerType, pDevIns->pvInstanceDataR3, pDevIns->pvInstanceDataR0, pDevIns->pvInstanceDataRC, "PCnet transmit ring write access handler"); AssertRC(rc); pThis->TDRAPhysOld = pThis->GCTDRA; pThis->cbTDRAOld = pcnetTdraAddr(pThis, 0); } # ifdef PCNET_MONITOR_RECEIVE_RING } else if ( RDRAPageStart != TDRAPageStart && ( TDRAPageStart == RDRAPageEnd || TDRAPageEnd == RDRAPageStart ) ) { /* 3) */ AssertFailed(); } /* else 2) */ # endif } # endif /* PCNET_NO_POLLING */ static void pcnetR3Init(PPDMDEVINS pDevIns, PPCNETSTATE pThis, PPCNETSTATECC pThisCC) { Log(("#%d pcnetR3Init: init_addr=%#010x\n", PCNET_INST_NR, PHYSADDR(pThis, CSR_IADR(pThis)))); /** @todo Documentation says that RCVRL and XMTRL are stored as two's complement! * Software is allowed to write these registers directly. */ # define PCNET_INIT() do { \ pcnetPhysRead(pDevIns, pThis, PHYSADDR(pThis, CSR_IADR(pThis)), \ (uint8_t *)&initblk, sizeof(initblk)); \ pThis->aCSR[15] = RT_LE2H_U16(initblk.mode); \ CSR_RCVRL(pThis) = (initblk.rlen < 9) ? (1 << initblk.rlen) : 512; \ CSR_XMTRL(pThis) = (initblk.tlen < 9) ? (1 << initblk.tlen) : 512; \ pThis->aCSR[ 6] = (initblk.tlen << 12) | (initblk.rlen << 8); \ pThis->aCSR[ 8] = RT_LE2H_U16(initblk.ladrf1); \ pThis->aCSR[ 9] = RT_LE2H_U16(initblk.ladrf2); \ pThis->aCSR[10] = RT_LE2H_U16(initblk.ladrf3); \ pThis->aCSR[11] = RT_LE2H_U16(initblk.ladrf4); \ pThis->aCSR[12] = RT_LE2H_U16(initblk.padr1); \ pThis->aCSR[13] = RT_LE2H_U16(initblk.padr2); \ pThis->aCSR[14] = RT_LE2H_U16(initblk.padr3); \ pThis->GCRDRA = PHYSADDR(pThis, initblk.rdra); \ pThis->GCTDRA = PHYSADDR(pThis, initblk.tdra); \ } while (0) if (BCR_SSIZE32(pThis)) { struct INITBLK32 initblk; pThis->GCUpperPhys = 0; PCNET_INIT(); Log(("#%d initblk.rlen=%#04x, initblk.tlen=%#04x\n", PCNET_INST_NR, initblk.rlen, initblk.tlen)); } else { struct INITBLK16 initblk; pThis->GCUpperPhys = (0xff00 & (uint32_t)pThis->aCSR[2]) << 16; PCNET_INIT(); Log(("#%d initblk.rlen=%#04x, initblk.tlen=%#04x\n", PCNET_INST_NR, initblk.rlen, initblk.tlen)); } # undef PCNET_INIT size_t cbRxBuffers = 0; for (int i = CSR_RCVRL(pThis); i >= 1; i--) { RMD rmd; RTGCPHYS32 rdaddr = PHYSADDR(pThis, pcnetRdraAddr(pThis, i)); pcnetDescTouch(pDevIns, pThis, rdaddr); /* At this time it is not guaranteed that the buffers are already initialized. */ if (pcnetRmdLoad(pDevIns, pThis, &rmd, rdaddr, false)) { uint32_t cbBuf = 4096U-rmd.rmd1.bcnt; cbRxBuffers += cbBuf; } } for (int i = CSR_XMTRL(pThis); i >= 1; i--) { RTGCPHYS32 tdaddr = PHYSADDR(pThis, pcnetTdraAddr(pThis, i)); pcnetDescTouch(pDevIns, pThis, tdaddr); } /* * Heuristics: The Solaris pcn driver allocates too few RX buffers (128 buffers of a * size of 128 bytes are 16KB in summary) leading to frequent RX buffer overflows. In * that case we don't signal RX overflows through the CSR0_MISS flag as the driver * re-initializes the device on every miss. Other guests use at least 32 buffers of * usually 1536 bytes and should therefore not run into condition. If they are still * short in RX buffers we notify this condition. */ pThis->fSignalRxMiss = (cbRxBuffers == 0 || cbRxBuffers >= 32*_1K); if (pThisCC->pDrv) pThisCC->pDrv->pfnSetPromiscuousMode(pThisCC->pDrv, CSR_PROM(pThis)); CSR_RCVRC(pThis) = CSR_RCVRL(pThis); CSR_XMTRC(pThis) = CSR_XMTRL(pThis); # ifdef PCNET_NO_POLLING pcnetR3UpdateRingHandlers(pThis); # endif /* Reset cached RX and TX states */ CSR_CRST(pThis) = CSR_CRBC(pThis) = CSR_NRST(pThis) = CSR_NRBC(pThis) = 0; CSR_CXST(pThis) = CSR_CXBC(pThis) = CSR_NXST(pThis) = CSR_NXBC(pThis) = 0; LogRel(("PCnet#%d: Init: SWSTYLE=%d GCRDRA=%#010x[%d] GCTDRA=%#010x[%d]%s\n", PCNET_INST_NR, BCR_SWSTYLE(pThis), pThis->GCRDRA, CSR_RCVRL(pThis), pThis->GCTDRA, CSR_XMTRL(pThis), !pThis->fSignalRxMiss ? " (CSR0_MISS disabled)" : "")); if (pThis->GCRDRA & (pThis->iLog2DescSize - 1)) LogRel(("PCnet#%d: Warning: Misaligned RDRA\n", PCNET_INST_NR)); if (pThis->GCTDRA & (pThis->iLog2DescSize - 1)) LogRel(("PCnet#%d: Warning: Misaligned TDRA\n", PCNET_INST_NR)); pThis->aCSR[0] |= 0x0101; /* Initialization done */ pThis->aCSR[0] &= ~0x0004; /* clear STOP bit */ } #endif /* IN_RING3 */ /** * Start RX/TX operation. */ static void pcnetStart(PPDMDEVINS pDevIns, PPCNETSTATE pThis) { Log(("#%d pcnetStart:\n", PCNET_INST_NR)); /* Reset any cached RX/TX descriptor state. */ CSR_CRDA(pThis) = CSR_CRBA(pThis) = CSR_NRDA(pThis) = CSR_NRBA(pThis) = 0; CSR_CRBC(pThis) = CSR_NRBC(pThis) = CSR_CRST(pThis) = 0; if (!CSR_DTX(pThis)) pThis->aCSR[0] |= 0x0010; /* set TXON */ if (!CSR_DRX(pThis)) pThis->aCSR[0] |= 0x0020; /* set RXON */ pThis->aCSR[0] &= ~0x0004; /* clear STOP bit */ pThis->aCSR[0] |= 0x0002; /* STRT */ #ifndef PCNET_NO_POLLING pcnetPollTimerStart(pDevIns, pThis); /* start timer if it was stopped */ #endif } /** * Stop RX/TX operation. */ static void pcnetStop(PPDMDEVINS pDevIns, PPCNETSTATE pThis, PPCNETSTATECC pThisCC) { Log(("#%d pcnetStop:\n", PCNET_INST_NR)); pThis->aCSR[0] = 0x0004; pThis->aCSR[4] &= ~0x02c2; pThis->aCSR[5] &= ~0x0011; pcnetPollTimer(pDevIns, pThis, pThisCC); } /** * Wakes up a receive thread stuck waiting for buffers. */ static void pcnetWakeupReceive(PPDMDEVINS pDevIns) { PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); STAM_COUNTER_INC(&pThis->StatRxOverflowWakeup); if (pThis->hEventOutOfRxSpace != NIL_SUPSEMEVENT) { int rc = PDMDevHlpSUPSemEventSignal(pDevIns, pThis->hEventOutOfRxSpace); AssertRC(rc); } } /** * Poll Receive Descriptor Table Entry and cache the results in the appropriate registers. * * @note Once a descriptor belongs to the network card (this driver), it * cannot be changed by the host (the guest driver) anymore. Well, it * could but the results are undefined by definition. * * @param pDevIns The device instance. * @param pThis The shared PCnet state data. * @param fSkipCurrent if true, don't scan the current RDTE. */ static void pcnetRdtePoll(PPDMDEVINS pDevIns, PPCNETSTATE pThis, bool fSkipCurrent=false) { STAM_PROFILE_ADV_START(&pThis->CTX_SUFF_Z(StatRdtePoll), a); /* assume lack of a next receive descriptor */ CSR_NRST(pThis) = 0; if (RT_LIKELY(pThis->GCRDRA)) { /* * The current receive message descriptor. */ RMD rmd; int i = CSR_RCVRC(pThis); RTGCPHYS32 addr; if (i < 1) i = CSR_RCVRL(pThis); if (!fSkipCurrent) { addr = pcnetRdraAddr(pThis, i); CSR_CRDA(pThis) = CSR_CRBA(pThis) = 0; CSR_CRBC(pThis) = CSR_CRST(pThis) = 0; if (!pcnetRmdLoad(pDevIns, pThis, &rmd, PHYSADDR(pThis, addr), true)) { STAM_PROFILE_ADV_STOP(&pThis->CTX_SUFF_Z(StatRdtePoll), a); return; } if (RT_LIKELY(!IS_RMD_BAD(rmd))) { CSR_CRDA(pThis) = addr; /* Receive Descriptor Address */ CSR_CRBA(pThis) = rmd.rmd0.rbadr; /* Receive Buffer Address */ CSR_CRBC(pThis) = rmd.rmd1.bcnt; /* Receive Byte Count */ CSR_CRST(pThis) = ((uint32_t *)&rmd)[1] >> 16; /* Receive Status */ if (pThis->fMaybeOutOfSpace) pcnetWakeupReceive(pDevIns); } else { STAM_PROFILE_ADV_STOP(&pThis->CTX_SUFF_Z(StatRdtePoll), a); /* This is not problematic since we don't own the descriptor * We actually do own it, otherwise pcnetRmdLoad would have returned false. * Don't flood the release log with errors. */ if (++pThis->uCntBadRMD < 50) LogRel(("PCnet#%d: BAD RMD ENTRIES AT %#010x (i=%d)\n", PCNET_INST_NR, addr, i)); return; } } /* * The next descriptor. */ if (--i < 1) i = CSR_RCVRL(pThis); addr = pcnetRdraAddr(pThis, i); CSR_NRDA(pThis) = CSR_NRBA(pThis) = 0; CSR_NRBC(pThis) = 0; if (!pcnetRmdLoad(pDevIns, pThis, &rmd, PHYSADDR(pThis, addr), true)) { STAM_PROFILE_ADV_STOP(&pThis->CTX_SUFF_Z(StatRdtePoll), a); return; } if (RT_LIKELY(!IS_RMD_BAD(rmd))) { CSR_NRDA(pThis) = addr; /* Receive Descriptor Address */ CSR_NRBA(pThis) = rmd.rmd0.rbadr; /* Receive Buffer Address */ CSR_NRBC(pThis) = rmd.rmd1.bcnt; /* Receive Byte Count */ CSR_NRST(pThis) = ((uint32_t *)&rmd)[1] >> 16; /* Receive Status */ } else { STAM_PROFILE_ADV_STOP(&pThis->CTX_SUFF_Z(StatRdtePoll), a); /* This is not problematic since we don't own the descriptor * We actually do own it, otherwise pcnetRmdLoad would have returned false. * Don't flood the release log with errors. */ if (++pThis->uCntBadRMD < 50) LogRel(("PCnet#%d: BAD RMD ENTRIES + AT %#010x (i=%d)\n", PCNET_INST_NR, addr, i)); return; } /** * @todo NNRD */ } else { CSR_CRDA(pThis) = CSR_CRBA(pThis) = CSR_NRDA(pThis) = CSR_NRBA(pThis) = 0; CSR_CRBC(pThis) = CSR_NRBC(pThis) = CSR_CRST(pThis) = 0; } STAM_PROFILE_ADV_STOP(&pThis->CTX_SUFF_Z(StatRdtePoll), a); } /** * Poll Transmit Descriptor Table Entry * @return true if transmit descriptors available */ static int pcnetTdtePoll(PPDMDEVINS pDevIns, PPCNETSTATE pThis, TMD *tmd) { STAM_PROFILE_ADV_START(&pThis->CTX_SUFF_Z(StatTdtePoll), a); if (RT_LIKELY(pThis->GCTDRA)) { RTGCPHYS32 cxda = pcnetTdraAddr(pThis, CSR_XMTRC(pThis)); if (!pcnetTmdTryLoad(pDevIns, pThis, tmd, PHYSADDR(pThis, cxda))) { STAM_PROFILE_ADV_STOP(&pThis->CTX_SUFF_Z(StatTdtePoll), a); return 0; } if (RT_UNLIKELY(tmd->tmd1.ones != 15)) { STAM_PROFILE_ADV_STOP(&pThis->CTX_SUFF_Z(StatTdtePoll), a); LogRel(("PCnet#%d: BAD TMD XDA=%#010x\n", PCNET_INST_NR, PHYSADDR(pThis, cxda))); return 0; } /* previous xmit descriptor */ CSR_PXDA(pThis) = CSR_CXDA(pThis); CSR_PXBC(pThis) = CSR_CXBC(pThis); CSR_PXST(pThis) = CSR_CXST(pThis); /* set current transmit descriptor. */ CSR_CXDA(pThis) = cxda; CSR_CXBC(pThis) = tmd->tmd1.bcnt; CSR_CXST(pThis) = ((uint32_t *)tmd)[1] >> 16; STAM_PROFILE_ADV_STOP(&pThis->CTX_SUFF_Z(StatTdtePoll), a); return CARD_IS_OWNER(CSR_CXST(pThis)); } else { /** @todo consistency with previous receive descriptor */ CSR_CXDA(pThis) = 0; CSR_CXBC(pThis) = CSR_CXST(pThis) = 0; STAM_PROFILE_ADV_STOP(&pThis->CTX_SUFF_Z(StatTdtePoll), a); return 0; } } /** * Write data into guest receive buffers. */ static void pcnetReceiveNoSync(PPDMDEVINS pDevIns, PPCNETSTATE pThis, PPCNETSTATECC pThisCC, const uint8_t *buf, size_t cbToRecv, bool fAddFCS, bool fLoopback) { int is_padr = 0; int is_bcast = 0; int is_ladr = 0; unsigned iRxDesc; int cbPacket; if (RT_UNLIKELY(CSR_DRX(pThis) || CSR_STOP(pThis) || CSR_SPND(pThis) || !cbToRecv)) return; /* * Drop packets if the VM is not running yet/anymore. */ VMSTATE enmVMState = PDMDevHlpVMState(pDevIns); if ( enmVMState != VMSTATE_RUNNING && enmVMState != VMSTATE_RUNNING_LS) return; /* * Drop packets if the cable is not connected */ if (!pcnetIsLinkUp(pThis)) return; Log(("#%d pcnetReceiveNoSync: size=%d\n", PCNET_INST_NR, cbToRecv)); /* * Perform address matching. */ if ( CSR_PROM(pThis) || (is_padr = padr_match(pThis, buf, cbToRecv)) || (is_bcast = padr_bcast(pThis, buf, cbToRecv)) || (is_ladr = ladr_match(pThis, buf, cbToRecv))) { if (HOST_IS_OWNER(CSR_CRST(pThis))) pcnetRdtePoll(pDevIns, pThis); if (RT_UNLIKELY(HOST_IS_OWNER(CSR_CRST(pThis)))) { /* Not owned by controller. This should not be possible as * we already called pcnetR3CanReceive(). */ LogRel(("PCnet#%d: no buffer: RCVRC=%d\n", PCNET_INST_NR, CSR_RCVRC(pThis))); /* Dump the status of all RX descriptors */ const unsigned cb = 1 << pThis->iLog2DescSize; RTGCPHYS32 GCPhys = pThis->GCRDRA; iRxDesc = CSR_RCVRL(pThis); while (iRxDesc-- > 0) { RMD rmd; pcnetRmdLoad(pDevIns, pThis, &rmd, PHYSADDR(pThis, GCPhys), false); LogRel((" %#010x\n", rmd.rmd1)); GCPhys += cb; } pThis->aCSR[0] |= 0x1000; /* Set MISS flag */ CSR_MISSC(pThis)++; } else { PCRTNETETHERHDR pEth = (PCRTNETETHERHDR)buf; bool fStrip = false; size_t len_802_3; uint8_t *src = &pThis->abRecvBuf[8]; RTGCPHYS32 crda = CSR_CRDA(pThis); RTGCPHYS32 next_crda; RMD rmd, next_rmd; /* * Ethernet framing considers these two octets to be * payload type; 802.3 framing considers them to be * payload length. IEEE 802.3x-1997 restricts Ethernet * type to be greater than or equal to 1536 (0x0600), so * that both framings can coexist on the wire. * * NB: CSR_ASTRP_RCV bit affects only 802.3 frames! */ len_802_3 = RT_BE2H_U16(pEth->EtherType); if (len_802_3 < 46 && CSR_ASTRP_RCV(pThis)) { cbToRecv = RT_MIN(sizeof(RTNETETHERHDR) + len_802_3, cbToRecv); fStrip = true; fAddFCS = false; } memcpy(src, buf, cbToRecv); if (!fStrip) { /* In loopback mode, Runt Packed Accept is always enabled internally; * don't do any padding because guest may be looping back very short packets. */ if (!fLoopback) while (cbToRecv < 60) src[cbToRecv++] = 0; if (fAddFCS) { uint32_t fcs = UINT32_MAX; uint8_t *p = src; while (p != &src[cbToRecv]) CRC(fcs, *p++); /* FCS at the end of the packet */ ((uint32_t *)&src[cbToRecv])[0] = htonl(fcs); cbToRecv += 4; } } cbPacket = (int)cbToRecv; Assert((size_t)cbPacket == cbToRecv); #ifdef LOG_ENABLED PRINT_PKTHDR(buf); #endif pcnetRmdLoad(pDevIns, pThis, &rmd, PHYSADDR(pThis, crda), false); /*if (!CSR_LAPPEN(pThis))*/ rmd.rmd1.stp = 1; size_t cbBuf = RT_MIN(4096 - (size_t)rmd.rmd1.bcnt, cbToRecv); RTGCPHYS32 rbadr = PHYSADDR(pThis, rmd.rmd0.rbadr); /* save the old value to check if it was changed as long as we didn't * hold the critical section */ iRxDesc = CSR_RCVRC(pThis); /* We have to leave the critical section here or we risk deadlocking * with EMT when the write is to an unallocated page or has an access * handler associated with it. * * This shouldn't be a problem because: * - any modification to the RX descriptor by the driver is * forbidden as long as it is owned by the device * - we don't cache any register state beyond this point */ PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect); pcnetPhysWrite(pDevIns, pThis, rbadr, src, cbBuf); int rc = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_SEM_BUSY); PDM_CRITSECT_RELEASE_ASSERT_RC_DEV(pDevIns, &pThis->CritSect, rc); /* RX disabled in the meantime? If so, abort RX. */ if (RT_UNLIKELY(CSR_DRX(pThis) || CSR_STOP(pThis) || CSR_SPND(pThis))) return; /* Was the register modified in the meantime? If so, don't touch the * register but still update the RX descriptor. */ if (RT_LIKELY(iRxDesc == CSR_RCVRC(pThis))) { if (iRxDesc-- < 2) iRxDesc = CSR_RCVRL(pThis); CSR_RCVRC(pThis) = iRxDesc; } else iRxDesc = CSR_RCVRC(pThis); src += cbBuf; cbToRecv -= cbBuf; while (cbToRecv > 0) { /* Read the entire next descriptor as we're likely to need it. */ next_crda = pcnetRdraAddr(pThis, iRxDesc); /* Check next descriptor's own bit. If we don't own it, we have * to quit and write error status into the last descriptor we own. */ if (!pcnetRmdLoad(pDevIns, pThis, &next_rmd, PHYSADDR(pThis, next_crda), true)) break; /* Write back current descriptor, clear the own bit. */ pcnetRmdStorePassHost(pDevIns, pThis, &rmd, PHYSADDR(pThis, crda)); /* Switch to the next descriptor */ crda = next_crda; rmd = next_rmd; cbBuf = RT_MIN(4096 - (size_t)rmd.rmd1.bcnt, cbToRecv); RTGCPHYS32 rbadr2 = PHYSADDR(pThis, rmd.rmd0.rbadr); /* We have to leave the critical section here or we risk deadlocking * with EMT when the write is to an unallocated page or has an access * handler associated with it. See above for additional comments. */ PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect); pcnetPhysWrite(pDevIns, pThis, rbadr2, src, cbBuf); rc = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_SEM_BUSY); PDM_CRITSECT_RELEASE_ASSERT_RC_DEV(pDevIns, &pThis->CritSect, rc); /* RX disabled in the meantime? If so, abort RX. */ if (RT_UNLIKELY(CSR_DRX(pThis) || CSR_STOP(pThis) || CSR_SPND(pThis))) return; /* Was the register modified in the meantime? If so, don't touch the * register but still update the RX descriptor. */ if (RT_LIKELY(iRxDesc == CSR_RCVRC(pThis))) { if (iRxDesc-- < 2) iRxDesc = CSR_RCVRL(pThis); CSR_RCVRC(pThis) = iRxDesc; } else iRxDesc = CSR_RCVRC(pThis); src += cbBuf; cbToRecv -= cbBuf; } if (RT_LIKELY(cbToRecv == 0)) { rmd.rmd1.enp = 1; rmd.rmd1.pam = !CSR_PROM(pThis) && is_padr; rmd.rmd1.lafm = !CSR_PROM(pThis) && is_ladr; rmd.rmd1.bam = !CSR_PROM(pThis) && is_bcast; rmd.rmd2.mcnt = cbPacket; rmd.rmd2.zeros = 0; STAM_REL_COUNTER_ADD(&pThis->StatReceiveBytes, cbPacket); } else { Log(("#%d: Overflow by %ubytes\n", PCNET_INST_NR, cbToRecv)); rmd.rmd1.oflo = 1; rmd.rmd1.buff = 1; rmd.rmd1.err = 1; } /* write back, clear the own bit */ pcnetRmdStorePassHost(pDevIns, pThis, &rmd, PHYSADDR(pThis, crda)); pThis->aCSR[0] |= 0x0400; Log(("#%d RCVRC=%d CRDA=%#010x\n", PCNET_INST_NR, CSR_RCVRC(pThis), PHYSADDR(pThis, CSR_CRDA(pThis)))); #ifdef LOG_ENABLED PRINT_RMD(&rmd); #endif /* guest driver is owner: force repoll of current and next RDTEs */ CSR_CRST(pThis) = 0; } } /* see description of TXDPOLL: * ``transmit polling will take place following receive activities'' */ if (!fLoopback) pcnetPollRxTx(pDevIns, pThis, pThisCC); pcnetUpdateIrq(pDevIns, pThis); } #ifdef IN_RING3 /** * @callback_method_impl{FNPDMTASKDEV, * This is just a very simple way of delaying sending to R3.} */ static DECLCALLBACK(void) pcnetR3XmitTaskCallback(PPDMDEVINS pDevIns, void *pvUser) { PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); PPCNETSTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PPCNETSTATECC); NOREF(pvUser); /* * Transmit as much as we can. */ pcnetXmitPending(pDevIns, pThis, pThisCC, true /*fOnWorkerThread*/); } #endif /* IN_RING3 */ /** * Allocates a scatter/gather buffer for a transfer. * * @returns See PPDMINETWORKUP::pfnAllocBuf. * @param pThis The shared PCNet state data. * @param cbMin The minimum buffer size. * @param fLoopback Set if we're in loopback mode. * @param pSgLoop Pointer to stack storage for the loopback SG. * @param ppSgBuf Where to return the SG buffer descriptor on success. * Always set. */ DECLINLINE(int) pcnetXmitAllocBuf(PPCNETSTATE pThis, PPCNETSTATECC pThisCC, size_t cbMin, bool fLoopback, PPDMSCATTERGATHER pSgLoop, PPPDMSCATTERGATHER ppSgBuf) { int rc; if (RT_UNLIKELY(fLoopback)) /* hope that loopback mode is rare */ { pSgLoop->fFlags = PDMSCATTERGATHER_FLAGS_MAGIC | PDMSCATTERGATHER_FLAGS_OWNER_1; pSgLoop->cbUsed = 0; pSgLoop->cbAvailable = sizeof(pThis->abLoopBuf); pSgLoop->pvAllocator = pThis; pSgLoop->pvUser = NULL; pSgLoop->cSegs = 1; pSgLoop->aSegs[0].cbSeg = sizeof(pThis->abLoopBuf); pSgLoop->aSegs[0].pvSeg = pThis->abLoopBuf; *ppSgBuf = pSgLoop; rc = VINF_SUCCESS; } else { PPDMINETWORKUP pDrv = pThisCC->pDrv; if (RT_LIKELY(pDrv)) { rc = pDrv->pfnAllocBuf(pDrv, cbMin, NULL /*pGso*/, ppSgBuf); AssertMsg(rc == VINF_SUCCESS || rc == VERR_TRY_AGAIN || rc == VERR_NET_DOWN || rc == VERR_NO_MEMORY, ("%Rrc\n", rc)); if (RT_FAILURE(rc)) *ppSgBuf = NULL; } else { rc = VERR_NET_DOWN; *ppSgBuf = NULL; } } return rc; } /** * Frees an unsent buffer. * * @param pThisCC The PCNet state data for the current context. * @param fLoopback Set if we're in loopback mode. * @param pSgBuf The SG to free. Can be NULL. */ DECLINLINE(void) pcnetXmitFreeBuf(PPCNETSTATECC pThisCC, bool fLoopback, PPDMSCATTERGATHER pSgBuf) { if (pSgBuf) { if (RT_UNLIKELY(fLoopback)) pSgBuf->pvAllocator = NULL; else { PPDMINETWORKUP pDrv = pThisCC->pDrv; if (RT_LIKELY(pDrv)) pDrv->pfnFreeBuf(pDrv, pSgBuf); } } } /** * Sends the scatter/gather buffer. * * Wrapper around PDMINETWORKUP::pfnSendBuf, so check it out for the fine print. * * @returns See PDMINETWORKUP::pfnSendBuf. * @param pDevIns The device instance. * @param pThis The shared PCNet state data. * @param pThisCC The PCNet state data for the current context. * @param fLoopback Set if we're in loopback mode. * @param pSgBuf The SG to send. * @param fOnWorkerThread Set if we're being called on a work thread. Clear * if an EMT. */ DECLINLINE(int) pcnetXmitSendBuf(PPDMDEVINS pDevIns, PPCNETSTATE pThis, PPCNETSTATECC pThisCC, bool fLoopback, PPDMSCATTERGATHER pSgBuf, bool fOnWorkerThread) { int rc; STAM_REL_COUNTER_ADD(&pThis->StatTransmitBytes, pSgBuf->cbUsed); if (RT_UNLIKELY(fLoopback)) /* hope that loopback mode is rare */ { Assert(pSgBuf->pvAllocator == (void *)pThis); pThis->Led.Asserted.s.fReading = pThis->Led.Actual.s.fReading = 1; if (HOST_IS_OWNER(CSR_CRST(pThis))) pcnetRdtePoll(pDevIns, pThis); pcnetReceiveNoSync(pDevIns, pThis, pThisCC, pThis->abLoopBuf, pSgBuf->cbUsed, true /* fAddFCS */, fLoopback); pThis->Led.Actual.s.fReading = 0; rc = VINF_SUCCESS; } else { /** @todo We used to leave the critsect here, not sure if that's necessary any * longer. If we could avoid that we could cache a bit more info in * the loop and make it part of the driver<->device contract, saving * critsect mess down in DrvIntNet. */ STAM_PROFILE_START(&pThis->CTX_SUFF_Z(StatTransmitSend), a); if (pSgBuf->cbUsed > 70) /* unqualified guess */ pThis->Led.Asserted.s.fWriting = pThis->Led.Actual.s.fWriting = 1; PPDMINETWORKUP pDrv = pThisCC->pDrv; if (RT_LIKELY(pDrv)) { rc = pDrv->pfnSendBuf(pDrv, pSgBuf, fOnWorkerThread); AssertMsg(rc == VINF_SUCCESS || rc == VERR_NET_DOWN || rc == VERR_NET_NO_BUFFER_SPACE, ("%Rrc\n", rc)); } else rc = VERR_NET_DOWN; pThis->Led.Actual.s.fWriting = 0; STAM_PROFILE_STOP(&pThis->CTX_SUFF_Z(StatTransmitSend), a); } return rc; } /** * pcnetXmitRead1st worker that handles the unlikely + slower segmented code * path. */ static void pcnetXmitRead1stSlow(PPDMDEVINS pDevIns, RTGCPHYS32 GCPhysFrame, unsigned cbFrame, PPDMSCATTERGATHER pSgBuf) { PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); pSgBuf->cbUsed = cbFrame; for (uint32_t iSeg = 0; ; iSeg++) { if (iSeg >= pSgBuf->cSegs) { AssertFailed(); LogRelMax(10, ("PCnet: pcnetXmitRead1stSlow: segment overflow -> ignoring\n")); return; } uint32_t cbRead = (uint32_t)RT_MIN(cbFrame, pSgBuf->aSegs[iSeg].cbSeg); pcnetPhysRead(pDevIns, pThis, GCPhysFrame, pSgBuf->aSegs[iSeg].pvSeg, cbRead); cbFrame -= cbRead; if (!cbFrame) return; GCPhysFrame += cbRead; } } /** * pcnetXmitSgReadMore worker that handles the unlikely + slower segmented code * path. */ static void pcnetXmitReadMoreSlow(PPDMDEVINS pDevIns, RTGCPHYS32 GCPhysFrame, unsigned cbFrame, PPDMSCATTERGATHER pSgBuf) { PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); /* Find the segment which we'll put the next byte into. */ size_t off = pSgBuf->cbUsed; size_t offSeg = 0; uint32_t iSeg = 0; while (offSeg + pSgBuf->aSegs[iSeg].cbSeg <= off) { offSeg += pSgBuf->aSegs[iSeg].cbSeg; iSeg++; if (iSeg >= pSgBuf->cSegs) { AssertFailed(); LogRelMax(10, ("PCnet: pcnetXmitReadMoreSlow: segment overflow #1 -> ignoring\n")); return; } } /* Commit before we start copying so we can decrement cbFrame. */ pSgBuf->cbUsed = off + cbFrame; /* Deal with the first segment if we at an offset into it. */ if (off != offSeg) { size_t offIntoSeg = off - offSeg; uint32_t cbRead = (uint32_t)RT_MIN(pSgBuf->aSegs[iSeg].cbSeg - offIntoSeg, cbFrame); pcnetPhysRead(pDevIns, pThis, GCPhysFrame, (uint8_t *)pSgBuf->aSegs[iSeg].pvSeg + offIntoSeg, cbRead); cbFrame -= cbRead; if (!cbFrame) return; GCPhysFrame += cbRead; iSeg++; } /* For the remainder, we've got whole segments. */ for (;; iSeg++) { if (iSeg >= pSgBuf->cSegs) { AssertFailed(); LogRelMax(10, ("PCnet: pcnetXmitReadMoreSlow: segment overflow #2 -> ignoring\n")); return; } uint32_t cbRead = (uint32_t)RT_MIN(pSgBuf->aSegs[iSeg].cbSeg, cbFrame); pcnetPhysRead(pDevIns, pThis, GCPhysFrame, pSgBuf->aSegs[iSeg].pvSeg, cbRead); cbFrame -= cbRead; if (!cbFrame) return; GCPhysFrame += cbFrame; } } /** * Reads the first part of a frame into the scatter gather buffer. */ DECLINLINE(void) pcnetXmitRead1st(PPDMDEVINS pDevIns, PPCNETSTATE pThis, RTGCPHYS32 GCPhysFrame, const unsigned cbFrame, PPDMSCATTERGATHER pSgBuf) { Assert(PDMDevHlpCritSectIsOwner(pDevIns, &pThis->CritSect)); RT_NOREF(pThis); Assert(pSgBuf->cbAvailable >= cbFrame); if (RT_LIKELY(pSgBuf->aSegs[0].cbSeg >= cbFrame)) /* justification: all drivers returns a single segment atm. */ { pSgBuf->cbUsed = cbFrame; pcnetPhysRead(pDevIns, pThis, GCPhysFrame, pSgBuf->aSegs[0].pvSeg, cbFrame); } else pcnetXmitRead1stSlow(pDevIns, GCPhysFrame, cbFrame, pSgBuf); } /** * Reads more into the current frame. */ DECLINLINE(void) pcnetXmitReadMore(PPDMDEVINS pDevIns, RTGCPHYS32 GCPhysFrame, const unsigned cbFrame, PPDMSCATTERGATHER pSgBuf) { size_t off = pSgBuf->cbUsed; Assert(pSgBuf->cbAvailable >= cbFrame + off); if (RT_LIKELY(pSgBuf->aSegs[0].cbSeg >= cbFrame + off)) { pSgBuf->cbUsed = cbFrame + off; PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); pcnetPhysRead(pDevIns, pThis, GCPhysFrame, (uint8_t *)pSgBuf->aSegs[0].pvSeg + off, cbFrame); } else pcnetXmitReadMoreSlow(pDevIns, GCPhysFrame, cbFrame, pSgBuf); } /** * Fails a TMD with a link down error. */ static void pcnetXmitFailTMDLinkDown(PPCNETSTATE pThis, TMD *pTmd) { /* make carrier error - hope this is correct. */ pThis->cLinkDownReported++; pTmd->tmd2.lcar = pTmd->tmd1.err = 1; pThis->aCSR[0] |= RT_BIT(15) | RT_BIT(13); /* ERR | CERR */ pThis->Led.Asserted.s.fError = pThis->Led.Actual.s.fError = 1; Log(("#%d pcnetTransmit: Signaling send error. swstyle=%#x\n", PCNET_INST_NR, pThis->aBCR[BCR_SWS])); } /** * Fails a TMD with a generic error. */ static void pcnetXmitFailTMDGeneric(PPCNETSTATE pThis, TMD *pTmd) { /* make carrier error - hope this is correct. */ pTmd->tmd2.lcar = pTmd->tmd1.err = 1; pThis->aCSR[0] |= RT_BIT(15) | RT_BIT(13); /* ERR | CERR */ pThis->Led.Asserted.s.fError = pThis->Led.Actual.s.fError = 1; Log(("#%d pcnetTransmit: Signaling send error. swstyle=%#x\n", PCNET_INST_NR, pThis->aBCR[BCR_SWS])); } /** * Try to transmit frames */ static void pcnetTransmit(PPDMDEVINS pDevIns, PPCNETSTATE pThis, PPCNETSTATECC pThisCC) { if (RT_UNLIKELY(!CSR_TXON(pThis))) { pThis->aCSR[0] &= ~0x0008; /* Clear TDMD */ return; } /* * Check the current transmit descriptors. */ TMD tmd; if (!pcnetTdtePoll(pDevIns, pThis, &tmd)) return; /* * Clear TDMD. */ pThis->aCSR[0] &= ~0x0008; /* * Transmit pending packets if possible, defer it if we cannot do it * in the current context. */ #if defined(IN_RING0) || defined(IN_RC) if (!pThisCC->pDrv) { int rc = PDMDevHlpTaskTrigger(pDevIns, pThis->hXmitTask); AssertRC(rc); } else #endif { int rc = pcnetXmitPending(pDevIns, pThis, pThisCC, false /*fOnWorkerThread*/); if (rc == VERR_TRY_AGAIN) rc = VINF_SUCCESS; AssertRC(rc); } } /** * Actually try transmit frames. * * @threads TX or EMT. */ static int pcnetAsyncTransmit(PPDMDEVINS pDevIns, PPCNETSTATE pThis, PPCNETSTATECC pThisCC, bool fOnWorkerThread) { Assert(PDMDevHlpCritSectIsOwner(pDevIns, &pThis->CritSect)); /* * Just cleared transmit demand if the transmitter is off. */ if (RT_UNLIKELY(!CSR_TXON(pThis))) { pThis->aCSR[0] &= ~0x0008; /* Clear TDMD */ return VINF_SUCCESS; } /* * Iterate the transmit descriptors. */ int rc; unsigned cFlushIrq = 0; int cMax = 32; STAM_PROFILE_ADV_START(&pThis->CTX_SUFF_Z(StatTransmit), a); do { #ifdef VBOX_WITH_STATISTICS unsigned cBuffers = 1; #endif TMD tmd; if (!pcnetTdtePoll(pDevIns, pThis, &tmd)) break; #ifdef LOG_ENABLED Log10(("#%d TMDLOAD %#010x\n", PCNET_INST_NR, PHYSADDR(pThis, CSR_CXDA(pThis)))); PRINT_TMD(&tmd); #endif bool const fLoopback = CSR_LOOP(pThis); PDMSCATTERGATHER SgLoop; PPDMSCATTERGATHER pSgBuf; /* * The typical case - a complete packet. */ if (tmd.tmd1.stp && tmd.tmd1.enp) { const unsigned cb = 4096 - tmd.tmd1.bcnt; Log(("#%d pcnetAsyncTransmit: stp&enp: cb=%d xmtrc=%#x\n", PCNET_INST_NR, cb, CSR_XMTRC(pThis))); STAM_COUNTER_INC(&pThis->StatTransmitCase1); if (RT_LIKELY(pcnetIsLinkUp(pThis) || fLoopback)) { /* From the manual: ``A zero length buffer is acceptable as * long as it is not the last buffer in a chain (STP = 0 and * ENP = 1).'' That means that the first buffer might have a * zero length if it is not the last one in the chain. */ if (RT_LIKELY(cb <= MAX_FRAME)) { rc = pcnetXmitAllocBuf(pThis, pThisCC, cb, fLoopback, &SgLoop, &pSgBuf); if (RT_SUCCESS(rc)) { pcnetXmitRead1st(pDevIns, pThis, PHYSADDR(pThis, tmd.tmd0.tbadr), cb, pSgBuf); rc = pcnetXmitSendBuf(pDevIns, pThis, pThisCC, fLoopback, pSgBuf, fOnWorkerThread); } else if (rc == VERR_TRY_AGAIN) { STAM_PROFILE_ADV_STOP(&pThis->CTX_SUFF_Z(StatTransmit), a); return VINF_SUCCESS; } if (RT_FAILURE(rc)) pcnetXmitFailTMDLinkDown(pThis, &tmd); } else if (cb == 4096) { /* The Windows NT4 pcnet driver sometimes marks the first * unused descriptor as owned by us. Ignore that (by * passing it back). Do not update the ring counter in this * case (otherwise that driver becomes even more confused, * which causes transmit to stall for about 10 seconds). * This is just a workaround, not a final solution. */ /* r=frank: IMHO this is the correct implementation. The * manual says: ``If the OWN bit is set and the buffer * length is 0, the OWN bit will be cleared. In the C-LANCE * the buffer length of 0 is interpreted as a 4096-byte * buffer.'' */ /* r=michaln: Perhaps not quite right. The C-LANCE (Am79C90) * datasheet explains that the old LANCE (Am7990) ignored * the top four bits next to BCNT and a count of 0 was * interpreted as 4096. In the C-LANCE, that is still the * case if the top bits are all ones. If all 16 bits are * zero, the C-LANCE interprets it as zero-length transmit * buffer. It's not entirely clear if the later models * (PCnet-ISA, PCnet-PCI) behave like the C-LANCE or not. * It is possible that the actual behavior of the C-LANCE * and later hardware is that the buffer lengths are *16-bit* * two's complement numbers between 0 and 4096. AMD's drivers * in fact generally treat the length as a 16-bit quantity. */ LogRel(("PCnet#%d: pcnetAsyncTransmit: illegal 4kb frame -> ignoring\n", PCNET_INST_NR)); pcnetTmdStorePassHost(pDevIns, pThis, &tmd, PHYSADDR(pThis, CSR_CXDA(pThis))); break; } else { /* Signal error, as this violates the Ethernet specs. */ /** @todo check if the correct error is generated. */ LogRel(("PCnet#%d: pcnetAsyncTransmit: illegal 4kb frame -> signalling error\n", PCNET_INST_NR)); pcnetXmitFailTMDGeneric(pThis, &tmd); } } else pcnetXmitFailTMDLinkDown(pThis, &tmd); /* Write back the TMD and pass it to the host (clear own bit). */ pcnetTmdStorePassHost(pDevIns, pThis, &tmd, PHYSADDR(pThis, CSR_CXDA(pThis))); /* advance the ring counter register */ if (CSR_XMTRC(pThis) < 2) CSR_XMTRC(pThis) = CSR_XMTRL(pThis); else CSR_XMTRC(pThis)--; } else if (tmd.tmd1.stp) { STAM_COUNTER_INC(&pThis->StatTransmitCase2); /* * Read TMDs until end-of-packet or tdte poll fails (underflow). * * We allocate a maximum sized buffer here since we do not wish to * waste time finding out how much space we actually need even if * we could reliably do that on SMP guests. */ unsigned cb = 4096 - tmd.tmd1.bcnt; rc = pcnetXmitAllocBuf(pThis, pThisCC, RT_MAX(MAX_FRAME, cb), fLoopback, &SgLoop, &pSgBuf); if (rc == VERR_TRY_AGAIN) { STAM_PROFILE_ADV_STOP(&pThis->CTX_SUFF_Z(StatTransmit), a); return VINF_SUCCESS; } bool fDropFrame = RT_FAILURE(rc); if (!fDropFrame) pcnetXmitRead1st(pDevIns, pThis, PHYSADDR(pThis, tmd.tmd0.tbadr), cb, pSgBuf); for (;;) { /* * Advance the ring counter register and check the next tmd. */ #ifdef LOG_ENABLED const uint32_t iStart = CSR_XMTRC(pThis); #endif const uint32_t GCPhysPrevTmd = PHYSADDR(pThis, CSR_CXDA(pThis)); if (CSR_XMTRC(pThis) < 2) CSR_XMTRC(pThis) = CSR_XMTRL(pThis); else CSR_XMTRC(pThis)--; TMD tmdNext; if (!pcnetTdtePoll(pDevIns, pThis, &tmdNext)) { /* * Underflow! */ tmd.tmd2.buff = tmd.tmd2.uflo = tmd.tmd1.err = 1; pThis->aCSR[0] |= 0x0200; /* set TINT */ /* Don't allow the guest to clear TINT before reading it */ pThis->u16CSR0LastSeenByGuest &= ~0x0200; if (!CSR_DXSUFLO(pThis)) /* stop on xmit underflow */ pThis->aCSR[0] &= ~0x0010; /* clear TXON */ pcnetTmdStorePassHost(pDevIns, pThis, &tmd, GCPhysPrevTmd); AssertMsgFailed(("pcnetAsyncTransmit: Underflow!!!\n")); pcnetXmitFreeBuf(pThisCC, fLoopback, pSgBuf); break; } /* release & save the previous tmd, pass it to the host */ pcnetTmdStorePassHost(pDevIns, pThis, &tmd, GCPhysPrevTmd); /* * The next tmd is already loaded. */ #ifdef VBOX_WITH_STATISTICS cBuffers++; #endif tmd = tmdNext; cb = 4096 - tmd.tmd1.bcnt; if ( !fDropFrame && pSgBuf->cbUsed + cb <= pSgBuf->cbAvailable) pcnetXmitReadMore(pDevIns, PHYSADDR(pThis, tmd.tmd0.tbadr), cb, pSgBuf); else { AssertMsg(fDropFrame, ("pcnetAsyncTransmit: Frame is too big!!! %d bytes\n", pSgBuf->cbUsed + cb)); fDropFrame = true; } /* * Done already? */ if (tmd.tmd1.enp) { Log(("#%d pcnetAsyncTransmit: stp: cb=%d xmtrc=%#x-%#x\n", PCNET_INST_NR, pSgBuf ? pSgBuf->cbUsed : 0, iStart, CSR_XMTRC(pThis))); if (!fDropFrame && (pcnetIsLinkUp(pThis) || fLoopback)) { rc = pcnetXmitSendBuf(pDevIns, pThis, pThisCC, fLoopback, pSgBuf, fOnWorkerThread); fDropFrame = RT_FAILURE(rc); } else pcnetXmitFreeBuf(pThisCC, fLoopback, pSgBuf); if (fDropFrame) pcnetXmitFailTMDLinkDown(pThis, &tmd); /* Write back the TMD, pass it to the host */ pcnetTmdStorePassHost(pDevIns, pThis, &tmd, PHYSADDR(pThis, CSR_CXDA(pThis))); /* advance the ring counter register */ if (CSR_XMTRC(pThis) < 2) CSR_XMTRC(pThis) = CSR_XMTRL(pThis); else CSR_XMTRC(pThis)--; break; } } /* the loop */ } else { /* * We underflowed in a previous transfer, or the driver is giving us shit. * Simply stop the transmitting for now. */ /** @todo according to the specs we're supposed to clear the own bit and move on to the next one. */ Log(("#%d pcnetAsyncTransmit: guest is giving us shit!\n", PCNET_INST_NR)); break; } /* Update TDMD, TXSTRT and TINT. */ pThis->aCSR[0] &= ~0x0008; /* clear TDMD */ pThis->aCSR[4] |= 0x0008; /* set TXSTRT */ if ( !CSR_TOKINTD(pThis) /* Transmit OK Interrupt Disable, no infl. on errors. */ || (CSR_LTINTEN(pThis) && tmd.tmd1.ltint) || tmd.tmd1.err) { cFlushIrq++; } /** @todo should we continue after an error (tmd.tmd1.err) or not? */ STAM_COUNTER_INC(&pThis->aStatXmitChainCounts[RT_MIN(cBuffers, RT_ELEMENTS(pThis->aStatXmitChainCounts)) - 1]); if (--cMax == 0) break; } while (CSR_TXON(pThis)); /* transfer on */ if (cFlushIrq) { STAM_COUNTER_INC(&pThis->aStatXmitFlush[RT_MIN(cFlushIrq, RT_ELEMENTS(pThis->aStatXmitFlush)) - 1]); /* The WinXP PCnet driver has apparently a bug: It sets CSR0.TDMD _before_ * it clears CSR0.TINT. This can lead to a race where the driver clears * CSR0.TINT right after it was set by the device. The driver waits until * CSR0.TINT is set again but this will never happen. So prevent clearing * this bit as long as the driver didn't read it. See @bugref{5288}. */ pThis->aCSR[0] |= 0x0200; /* set TINT */ /* Don't allow the guest to clear TINT before reading it */ pThis->u16CSR0LastSeenByGuest &= ~0x0200; pcnetUpdateIrq(pDevIns, pThis); } STAM_PROFILE_ADV_STOP(&pThis->CTX_SUFF_Z(StatTransmit), a); return VINF_SUCCESS; } /** * Transmit pending descriptors. * * @returns VBox status code. VERR_TRY_AGAIN is returned if we're busy. * * @param pDevIns The device instance. * @param pThis The PCnet shared instance data. * @param pThisCC The PCNet state data for the current context. * @param fOnWorkerThread Whether we're on a worker thread or on an EMT. */ static int pcnetXmitPending(PPDMDEVINS pDevIns, PPCNETSTATE pThis, PPCNETSTATECC pThisCC, bool fOnWorkerThread) { RT_NOREF_PV(fOnWorkerThread); int rc; /* * Grab the xmit lock of the driver as well as the E1K device state. */ PPDMINETWORKUP pDrv = pThisCC->pDrv; if (pDrv) { rc = pDrv->pfnBeginXmit(pDrv, false /*fOnWorkerThread*/); if (RT_FAILURE(rc)) return rc; } rc = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_SEM_BUSY); if (RT_SUCCESS(rc)) { /** @todo check if we're supposed to suspend now. */ /* * Do the transmitting. */ int rc2 = pcnetAsyncTransmit(pDevIns, pThis, pThisCC, false /*fOnWorkerThread*/); AssertReleaseRC(rc2); /* * Release the locks. */ PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect); } else AssertLogRelRC(rc); if (pDrv) pDrv->pfnEndXmit(pDrv); return rc; } /** * Poll for changes in RX and TX descriptor rings. */ static void pcnetPollRxTx(PPDMDEVINS pDevIns, PPCNETSTATE pThis, PPCNETSTATECC pThisCC) { if (CSR_RXON(pThis)) { /* * The second case is important for pcnetWaitReceiveAvail(): If CSR_CRST(pThis) was * true but pcnetR3CanReceive() returned false for some other reason we need to check * _now_ if we have to wakeup pcnetWaitReceiveAvail(). */ if ( HOST_IS_OWNER(CSR_CRST(pThis)) /* only poll RDTEs if none available or ... */ || pThis->fMaybeOutOfSpace) /* ... for waking up pcnetWaitReceiveAvail() */ pcnetRdtePoll(pDevIns, pThis); } if (CSR_TDMD(pThis) || (CSR_TXON(pThis) && !CSR_DPOLL(pThis))) pcnetTransmit(pDevIns, pThis, pThisCC); } #ifndef PCNET_NO_POLLING /** * Start the poller timer. * Poll timer interval is fixed to 500Hz. Don't stop it. * @thread EMT, TAP. */ static void pcnetPollTimerStart(PPDMDEVINS pDevIns, PPCNETSTATE pThis) { PDMDevHlpTimerSetMillies(pDevIns, pThis->hTimerPoll, 2); } #endif /** * Update the poller timer. * @thread EMT. */ static void pcnetPollTimer(PPDMDEVINS pDevIns, PPCNETSTATE pThis, PPCNETSTATECC pThisCC) { STAM_PROFILE_ADV_START(&pThis->StatPollTimer, a); #ifdef LOG_ENABLED TMD dummy; if (CSR_STOP(pThis) || CSR_SPND(pThis)) Log2(("#%d pcnetPollTimer time=%#010llx CSR_STOP=%d CSR_SPND=%d\n", PCNET_INST_NR, RTTimeMilliTS(), CSR_STOP(pThis), CSR_SPND(pThis))); else Log2(("#%d pcnetPollTimer time=%#010llx TDMD=%d TXON=%d POLL=%d TDTE=%d TDRA=%#x\n", PCNET_INST_NR, RTTimeMilliTS(), CSR_TDMD(pThis), CSR_TXON(pThis), !CSR_DPOLL(pThis), pcnetTdtePoll(pDevIns, pThis, &dummy), pThis->GCTDRA)); Log2(("#%d pcnetPollTimer: CSR_CXDA=%#x CSR_XMTRL=%d CSR_XMTRC=%d\n", PCNET_INST_NR, CSR_CXDA(pThis), CSR_XMTRL(pThis), CSR_XMTRC(pThis))); #endif #ifdef LOG_ENABLED if (CSR_CXDA(pThis)) { TMD tmd; pcnetTmdLoadAll(pDevIns, pThis, &tmd, PHYSADDR(pThis, CSR_CXDA(pThis))); Log10(("#%d pcnetPollTimer: TMDLOAD %#010x\n", PCNET_INST_NR, PHYSADDR(pThis, CSR_CXDA(pThis)))); PRINT_TMD(&tmd); } #endif if (CSR_TDMD(pThis)) pcnetTransmit(pDevIns, pThis, pThisCC); pcnetUpdateIrq(pDevIns, pThis); /* If the receive thread is waiting for new descriptors, poll TX/RX even if polling * disabled. We wouldn't need to poll for new TX descriptors in that case but it will * not hurt as waiting for RX descriptors should happen very seldom */ if (RT_LIKELY( !CSR_STOP(pThis) && !CSR_SPND(pThis) && ( !CSR_DPOLL(pThis) || pThis->fMaybeOutOfSpace))) { /* We ensure that we poll at least every 2ms (500Hz) but not more often than * 5000 times per second. This way we completely prevent the overhead from * heavy reprogramming the timer which turned out to be very CPU-intensive. * The drawback is that csr46 and csr47 are not updated properly anymore * but so far I have not seen any guest depending on these values. The 2ms * interval is the default polling interval of the PCnet card (65536/33MHz). */ #ifdef PCNET_NO_POLLING pcnetPollRxTx(pDevIns, pThis, pThisCC); #else uint64_t u64Now = PDMDevHlpTimerGet(pDevIns, pThis->hTimerPoll); if (RT_UNLIKELY(u64Now - pThis->u64LastPoll > 200000)) { pThis->u64LastPoll = u64Now; pcnetPollRxTx(pDevIns, pThis, pThisCC); } if (!PDMDevHlpTimerIsActive(pDevIns, pThis->hTimerPoll)) pcnetPollTimerStart(pDevIns, pThis); #endif } STAM_PROFILE_ADV_STOP(&pThis->StatPollTimer, a); } static VBOXSTRICTRC pcnetCSRWriteU16(PPDMDEVINS pDevIns, PPCNETSTATE pThis, PPCNETSTATECC pThisCC, uint32_t u32RAP, uint32_t val) { VBOXSTRICTRC rc = VINF_SUCCESS; Log8(("#%d pcnetCSRWriteU16: rap=%d val=%#06x\n", PCNET_INST_NR, u32RAP, val)); switch (u32RAP) { case 0: { uint16_t csr0 = pThis->aCSR[0]; /* Clear any interrupt flags. * Don't clear an interrupt flag which was not seen by the guest yet. */ csr0 &= ~(val & 0x7f00 & pThis->u16CSR0LastSeenByGuest); csr0 = (csr0 & ~0x0040) | (val & 0x0048); val = (val & 0x007f) | (csr0 & 0x7f00); /* Iff STOP, STRT and INIT are set, clear STRT and INIT */ if ((val & 7) == 7) val &= ~3; Log(("#%d CSR0: old=%#06x new=%#06x\n", PCNET_INST_NR, pThis->aCSR[0], csr0)); #ifndef IN_RING3 if (!(csr0 & 0x0001/*init*/) && (val & 1)) { Log(("#%d pcnetCSRWriteU16: pcnetR3Init requested => HC\n", PCNET_INST_NR)); return VINF_IOM_R3_IOPORT_WRITE; } #endif pThis->aCSR[0] = csr0; if (!CSR_STOP(pThis) && (val & 4)) pcnetStop(pDevIns, pThis, pThisCC); #ifdef IN_RING3 if (!CSR_INIT(pThis) && (val & 1)) pcnetR3Init(pDevIns, pThis, pThisCC); #endif if (!CSR_STRT(pThis) && (val & 2)) pcnetStart(pDevIns, pThis); if (CSR_TDMD(pThis)) pcnetTransmit(pDevIns, pThis, pThisCC); return rc; } case 2: /* IADRH */ if (PCNET_IS_ISA(pThis)) val &= 0x00ff; /* Upper 8 bits ignored on ISA chips. */ RT_FALL_THRU(); case 1: /* IADRL */ case 8: /* LADRF 0..15 */ case 9: /* LADRF 16..31 */ case 10: /* LADRF 32..47 */ case 11: /* LADRF 48..63 */ case 12: /* PADR 0..15 */ case 13: /* PADR 16..31 */ case 14: /* PADR 32..47 */ case 18: /* CRBAL */ case 19: /* CRBAU */ case 20: /* CXBAL */ case 21: /* CXBAU */ case 22: /* NRBAL */ case 23: /* NRBAU */ case 26: /* NRDAL */ case 27: /* NRDAU */ case 28: /* CRDAL */ case 29: /* CRDAU */ case 32: /* NXDAL */ case 33: /* NXDAU */ case 34: /* CXDAL */ case 35: /* CXDAU */ case 36: /* NNRDL */ case 37: /* NNRDU */ case 38: /* NNXDL */ case 39: /* NNXDU */ case 40: /* CRBCL */ case 41: /* CRBCU */ case 42: /* CXBCL */ case 43: /* CXBCU */ case 44: /* NRBCL */ case 45: /* NRBCU */ case 46: /* POLL */ case 47: /* POLLINT */ case 72: /* RCVRC */ case 74: /* XMTRC */ case 112: /* MISSC */ if (CSR_STOP(pThis) || CSR_SPND(pThis)) break; else { Log(("#%d: WRITE CSR%d, %#06x, ignoring!!\n", PCNET_INST_NR, u32RAP, val)); return rc; } case 3: /* Interrupt Mask and Deferral Control */ break; case 4: /* Test and Features Control */ pThis->aCSR[4] &= ~(val & 0x026a); val &= ~0x026a; val |= pThis->aCSR[4] & 0x026a; break; case 5: /* Extended Control and Interrupt 1 */ pThis->aCSR[5] &= ~(val & 0x0a90); val &= ~0x0a90; val |= pThis->aCSR[5] & 0x0a90; break; case 7: /* Extended Control and Interrupt 2 */ { uint16_t csr7 = pThis->aCSR[7]; csr7 &= ~0x0400 ; csr7 &= ~(val & 0x0800); csr7 |= (val & 0x0400); pThis->aCSR[7] = csr7; return rc; } case 15: /* Mode */ if ((pThis->aCSR[15] & 0x8000) != (uint16_t)(val & 0x8000) && pThis->fDriverAttached) { Log(("#%d: promiscuous mode changed to %d\n", PCNET_INST_NR, !!(val & 0x8000))); #ifndef IN_RING3 return VINF_IOM_R3_IOPORT_WRITE; #else /* check for promiscuous mode change */ if (pThisCC->pDrv) pThisCC->pDrv->pfnSetPromiscuousMode(pThisCC->pDrv, !!(val & 0x8000)); #endif } break; case 16: /* IADRL */ return pcnetCSRWriteU16(pDevIns, pThis, pThisCC, 1, val); case 17: /* IADRH */ return pcnetCSRWriteU16(pDevIns, pThis, pThisCC, 2, val); /* * 24 and 25 are the Base Address of Receive Descriptor. * We combine and mirror these in GCRDRA. */ case 24: /* BADRL */ case 25: /* BADRU */ if (!CSR_STOP(pThis) && !CSR_SPND(pThis)) { Log(("#%d: WRITE CSR%d, %#06x, ignoring!!\n", PCNET_INST_NR, u32RAP, val)); return rc; } if (u32RAP == 24) pThis->GCRDRA = (pThis->GCRDRA & 0xffff0000) | (val & 0x0000ffff); else pThis->GCRDRA = (pThis->GCRDRA & 0x0000ffff) | ((val & 0x0000ffff) << 16); Log(("#%d: WRITE CSR%d, %#06x => GCRDRA=%08x (alt init)\n", PCNET_INST_NR, u32RAP, val, pThis->GCRDRA)); if (pThis->GCRDRA & (pThis->iLog2DescSize - 1)) LogRel(("PCnet#%d: Warning: Misaligned RDRA (GCRDRA=%#010x)\n", PCNET_INST_NR, pThis->GCRDRA)); break; /* * 30 & 31 are the Base Address of Transmit Descriptor. * We combine and mirrorthese in GCTDRA. */ case 30: /* BADXL */ case 31: /* BADXU */ if (!CSR_STOP(pThis) && !CSR_SPND(pThis)) { Log(("#%d: WRITE CSR%d, %#06x !!\n", PCNET_INST_NR, u32RAP, val)); return rc; } if (u32RAP == 30) pThis->GCTDRA = (pThis->GCTDRA & 0xffff0000) | (val & 0x0000ffff); else pThis->GCTDRA = (pThis->GCTDRA & 0x0000ffff) | ((val & 0x0000ffff) << 16); Log(("#%d: WRITE CSR%d, %#06x => GCTDRA=%08x (alt init)\n", PCNET_INST_NR, u32RAP, val, pThis->GCTDRA)); if (pThis->GCTDRA & (pThis->iLog2DescSize - 1)) LogRel(("PCnet#%d: Warning: Misaligned TDRA (GCTDRA=%#010x)\n", PCNET_INST_NR, pThis->GCTDRA)); break; case 58: /* Software Style */ rc = pcnetBCRWriteU16(pDevIns, pThis, BCR_SWS, val); break; /* * Registers 76 and 78 aren't stored correctly (see todos), but I'm don't dare * try fix that right now. So, as a quick hack for 'alt init' I'll just correct them here. */ case 76: /* RCVRL */ /** @todo call pcnetR3UpdateRingHandlers */ /** @todo receive ring length is stored in two's complement! */ case 78: /* XMTRL */ /** @todo call pcnetR3UpdateRingHandlers */ /** @todo transmit ring length is stored in two's complement! */ if (!CSR_STOP(pThis) && !CSR_SPND(pThis)) { Log(("#%d: WRITE CSR%d, %#06x !!\n", PCNET_INST_NR, u32RAP, val)); return rc; } Log(("#%d: WRITE CSR%d, %#06x (hacked %#06x) (alt init)\n", PCNET_INST_NR, u32RAP, val, 1 + ~(uint16_t)val)); val = 1 + ~(uint16_t)val; /* * HACK ALERT! Set the counter registers too. */ pThis->aCSR[u32RAP - 4] = val; break; default: return rc; } pThis->aCSR[u32RAP] = val; return rc; } /** * Encode a 32-bit link speed into a custom 16-bit floating-point value */ static uint32_t pcnetLinkSpd(uint32_t speed) { unsigned exp = 0; while (speed & 0xFFFFE000) { speed /= 10; ++exp; } return (exp << 13) | speed; } static uint32_t pcnetCSRReadU16(PPDMDEVINS pDevIns, PPCNETSTATE pThis, uint32_t u32RAP) { uint32_t val; switch (u32RAP) { case 0: pcnetUpdateIrq(pDevIns, pThis); val = pThis->aCSR[0]; val |= (val & 0x7800) ? 0x8000 : 0; pThis->u16CSR0LastSeenByGuest = val; break; case 16: return pcnetCSRReadU16(pDevIns, pThis, 1); case 17: return pcnetCSRReadU16(pDevIns, pThis, 2); case 58: return pcnetBCRReadU16(pThis, BCR_SWS); case 68: /* Custom register to pass link speed to driver */ return pcnetLinkSpd(pThis->u32LinkSpeed); case 88: val = pThis->aCSR[89]; val <<= 16; val |= pThis->aCSR[88]; break; default: val = pThis->aCSR[u32RAP]; } Log8(("#%d pcnetCSRReadU16: rap=%d val=%#06x\n", PCNET_INST_NR, u32RAP, val)); return val; } static VBOXSTRICTRC pcnetBCRWriteU16(PPDMDEVINS pDevIns, PPCNETSTATE pThis, uint32_t u32RAP, uint32_t val) { u32RAP &= 0x7f; Log7(("#%d pcnetBCRWriteU16: rap=%d val=%#06x\n", PCNET_INST_NR, u32RAP, val)); switch (u32RAP) { case BCR_SWS: if (!(CSR_STOP(pThis) || CSR_SPND(pThis))) return VINF_SUCCESS; val &= ~0x0300; switch (val & 0x00ff) { default: Log(("#%d Bad SWSTYLE=%#04x\n", PCNET_INST_NR, val & 0xff)); RT_FALL_THRU(); case 0: val |= 0x0200; /* 16 bit */ pThis->iLog2DescSize = 3; pThis->GCUpperPhys = (0xff00 & (uint32_t)pThis->aCSR[2]) << 16; break; case 1: val |= 0x0100; /* 32 bit */ pThis->iLog2DescSize = 4; pThis->GCUpperPhys = 0; break; case 2: case 3: val |= 0x0300; /* 32 bit */ pThis->iLog2DescSize = 4; pThis->GCUpperPhys = 0; break; } Log(("#%d BCR_SWS=%#06x\n", PCNET_INST_NR, val)); pThis->aCSR[58] = val; RT_FALL_THRU(); case BCR_LNKST: case BCR_LED1: case BCR_LED2: case BCR_LED3: case BCR_MC: case BCR_FDC: case BCR_BSBC: case BCR_EECAS: case BCR_PLAT: case BCR_MIICAS: case BCR_MIIADDR: pThis->aBCR[u32RAP] = val; break; case BCR_STVAL: val &= 0xffff; pThis->aBCR[BCR_STVAL] = val; if (pThis->uDevType == DEV_AM79C973) PDMDevHlpTimerSetNano(pDevIns, pThis->hTimerSoftInt, 12800U * val); break; case BCR_MIIMDR: pThis->aMII[pThis->aBCR[BCR_MIIADDR] & 0x1f] = val; Log12(("#%d pcnet: mii write %d <- %#x\n", PCNET_INST_NR, pThis->aBCR[BCR_MIIADDR] & 0x1f, val)); break; default: break; } return VINF_SUCCESS; } static uint32_t pcnetMIIReadU16(PPCNETSTATE pThis, uint32_t miiaddr) { uint32_t val; bool autoneg, duplex, fast, isolate; STAM_COUNTER_INC(&pThis->StatMIIReads); /* If the DANAS (BCR32.7) bit is set, the MAC does not do any * auto-negotiation and the PHY must be set up explicitly. DANAS * effectively disables most other BCR32 bits. */ if (pThis->aBCR[BCR_MIICAS] & 0x80) { /* PHY controls auto-negotiation. */ autoneg = duplex = fast = 1; } else { /* BCR32 controls auto-negotiation. */ autoneg = (pThis->aBCR[BCR_MIICAS] & 0x20) != 0; duplex = (pThis->aBCR[BCR_MIICAS] & 0x10) != 0; fast = (pThis->aBCR[BCR_MIICAS] & 0x08) != 0; } /* Electrically isolating the PHY mostly disables it. */ isolate = (pThis->aMII[0] & RT_BIT(10)) != 0; switch (miiaddr) { case 0: /* MII basic mode control register. */ val = 0; if (autoneg) val |= 0x1000; /* Enable auto negotiation. */ if (fast) val |= 0x2000; /* 100 Mbps */ if (duplex) /* Full duplex forced */ val |= 0x0100; /* Full duplex */ if (isolate) /* PHY electrically isolated. */ val |= 0x0400; /* Isolated */ break; case 1: /* MII basic mode status register. */ val = 0x7800 /* Can do 100mbps FD/HD and 10mbps FD/HD. */ | 0x0040 /* Mgmt frame preamble not required. */ | 0x0020 /* Auto-negotiation complete. */ | 0x0008 /* Able to do auto-negotiation. */ | 0x0004 /* Link up. */ | 0x0001; /* Extended Capability, i.e. registers 4+ valid. */ if (!pcnetIsLinkUp(pThis) || isolate) { val &= ~(0x0020 | 0x0004); pThis->cLinkDownReported++; } if (!autoneg) { /* Auto-negotiation disabled. */ val &= ~(0x0020 | 0x0008); if (duplex) /* Full duplex forced. */ val &= ~0x2800; else /* Half duplex forced. */ val &= ~0x5000; if (fast) /* 100 Mbps forced */ val &= ~0x1800; else /* 10 Mbps forced */ val &= ~0x6000; } break; case 2: /* PHY identifier 1. */ val = 0x22; /* Am79C874/AC101 PHY */ break; case 3: /* PHY identifier 2. */ val = 0x561b; /* Am79C874/AC101 PHY */ break; case 4: /* Advertisement control register. */ val = 0x01e0 /* Try 100mbps FD/HD and 10mbps FD/HD. */ #if 0 // Advertising flow control is a) not the default, and b) confuses // the link speed detection routine in Windows PCnet driver | 0x0400 /* Try flow control. */ #endif | 0x0001; /* CSMA selector. */ break; case 5: /* Link partner ability register. */ if (pcnetIsLinkUp(pThis) && !isolate) val = 0x8000 /* Next page bit. */ | 0x4000 /* Link partner acked us. */ | 0x0400 /* Can do flow control. */ | 0x01e0 /* Can do 100mbps FD/HD and 10mbps FD/HD. */ | 0x0001; /* Use CSMA selector. */ else { val = 0; pThis->cLinkDownReported++; } break; case 6: /* Auto negotiation expansion register. */ if (pcnetIsLinkUp(pThis) && !isolate) val = 0x0008 /* Link partner supports npage. */ | 0x0004 /* Enable npage words. */ | 0x0001; /* Can do N-way auto-negotiation. */ else { val = 0; pThis->cLinkDownReported++; } break; case 18: /* Diagnostic Register (FreeBSD pcn/ac101 driver reads this). */ if (pcnetIsLinkUp(pThis) && !isolate) { val = 0x0100 /* Receive PLL locked. */ | 0x0200; /* Signal detected. */ if (autoneg) { val |= 0x0400 /* 100Mbps rate. */ | 0x0800; /* Full duplex. */ } else { if (fast) val |= 0x0400; /* 100Mbps rate. */ if (duplex) val |= 0x0800; /* Full duplex. */ } } else { val = 0; pThis->cLinkDownReported++; } break; default: val = 0; break; } Log12(("#%d pcnet: mii read %d -> %#x\n", PCNET_INST_NR, miiaddr, val)); return val; } static uint32_t pcnetBCRReadU16(PPCNETSTATE pThis, uint32_t u32RAP) { uint32_t val; u32RAP &= 0x7f; switch (u32RAP) { case BCR_LNKST: case BCR_LED1: case BCR_LED2: case BCR_LED3: val = pThis->aBCR[u32RAP] & ~0x8000; /* Clear LNKSTE if we're not connected or if we've just loaded a VM state. */ if (!pThis->fDriverAttached || pThis->fLinkTempDown || !pThis->fLinkUp) { if (u32RAP == 4) pThis->cLinkDownReported++; val &= ~0x40; } /* AMD NDIS 5.0 driver programs BCR4 to indicate link state and polls * the LED bit (bit 15) to determine current link status. */ val |= (val & 0x017f & pThis->u32Lnkst) ? 0x8000 : 0; break; case BCR_MIIMDR: if ((pThis->uDevType == DEV_AM79C973) && (pThis->aBCR[BCR_MIIADDR] >> 5 & 0x1f) == 0) { uint32_t miiaddr = pThis->aBCR[BCR_MIIADDR] & 0x1f; val = pcnetMIIReadU16(pThis, miiaddr); } else val = 0xffff; break; default: val = u32RAP < BCR_MAX_RAP ? pThis->aBCR[u32RAP] : 0; break; } Log7(("#%d pcnetBCRReadU16: rap=%d val=%#06x\n", PCNET_INST_NR, u32RAP, val)); return val; } #ifdef IN_RING3 /* move down */ static void pcnetR3HardReset(PPDMDEVINS pDevIns, PPCNETSTATE pThis) { int i; uint16_t checksum; /* Lower any raised interrupts, see @bugref(9556) */ if (RT_UNLIKELY(pThis->iISR)) { pThis->iISR = 0; if (!PCNET_IS_ISA(pThis)) { Log(("#%d INTA=%d\n", PCNET_INST_NR, pThis->iISR)); PDMDevHlpPCISetIrq(pDevIns, 0, pThis->iISR); } else { Log(("#%d IRQ=%d, state=%d\n", PCNET_INST_NR, pThis->uIsaIrq, pThis->iISR)); PDMDevHlpISASetIrq(pDevIns, pThis->uIsaIrq, pThis->iISR); } } /* Initialize the PROM */ Assert(sizeof(pThis->MacConfigured) == 6); memcpy(pThis->aPROM, &pThis->MacConfigured, sizeof(pThis->MacConfigured)); pThis->aPROM[ 8] = 0x00; pThis->aPROM[12] = pThis->aPROM[13] = 0x00; if (pThis->uDevType == DEV_AM79C960_EB) { pThis->aPROM[14] = 0x52; pThis->aPROM[15] = 0x44; /* NI6510 EtherBlaster 'RD' signature. */ } else pThis->aPROM[14] = pThis->aPROM[15] = 0x57; /* NE2100 'WW' signature. */ /* 0x00/0xFF=ISA, 0x01=PnP, 0x10=VLB, 0x11=PCI */ if (PCNET_IS_PCI(pThis)) pThis->aPROM[ 9] = 0x11; else pThis->aPROM[ 9] = 0x00; for (i = 0, checksum = 0; i < 16; i++) checksum += pThis->aPROM[i]; *(uint16_t *)&pThis->aPROM[12] = RT_H2LE_U16(checksum); /* Many of the BCR values would normally be read from the EEPROM. */ pThis->aBCR[BCR_MSRDA] = 0x0005; pThis->aBCR[BCR_MSWRA] = 0x0005; pThis->aBCR[BCR_MC ] = 0x0002; pThis->aBCR[BCR_LNKST] = 0x00c0; pThis->aBCR[BCR_LED1 ] = 0x0084; pThis->aBCR[BCR_LED2 ] = 0x0088; pThis->aBCR[BCR_LED3 ] = 0x0090; /* For ISA PnP cards, BCR8 reports IRQ/DMA (e.g. 0x0035 means IRQ 3, DMA 5). */ pThis->aBCR[BCR_FDC ] = 0x0000; pThis->aBCR[BCR_BSBC ] = 0x9001; pThis->aBCR[BCR_EECAS] = 0x0002; pThis->aBCR[BCR_STVAL] = 0xffff; pThis->aCSR[58 ] = /* CSR58 is an alias for BCR20 */ pThis->aBCR[BCR_SWS ] = 0x0200; pThis->iLog2DescSize = 3; pThis->aBCR[BCR_PLAT ] = 0xff06; pThis->aBCR[BCR_MIICAS ] = 0x20; /* Auto-negotiation on. */ pThis->aBCR[BCR_MIIADDR ] = 0; /* Internal PHY on Am79C973 would be (0x1e << 5) */ PPDMPCIDEV pPciDev = pDevIns->apPciDevs[0]; pThis->aBCR[BCR_PCIVID] = PCIDevGetVendorId(pPciDev); pThis->aBCR[BCR_PCISID] = PCIDevGetSubSystemId(pPciDev); pThis->aBCR[BCR_PCISVID] = PCIDevGetSubSystemVendorId(pPciDev); /* Reset the error counter. */ pThis->uCntBadRMD = 0; pcnetSoftReset(pThis); } #endif /* IN_RING3 */ /* -=-=-=-=-=- APROM I/O Port access -=-=-=-=-=- */ static void pcnetAPROMWriteU8(PPCNETSTATE pThis, uint32_t addr, uint32_t val) { addr &= 0x0f; val &= 0xff; Log(("#%d pcnetAPROMWriteU8: addr=%#010x val=%#04x\n", PCNET_INST_NR, addr, val)); /* Check APROMWE bit to enable write access */ if (pcnetBCRReadU16(pThis, 2) & 0x80) pThis->aPROM[addr] = val; } static uint32_t pcnetAPROMReadU8(PPCNETSTATE pThis, uint32_t addr) { uint32_t val = pThis->aPROM[addr &= 0x0f]; Log(("#%d pcnetAPROMReadU8: addr=%#010x val=%#04x\n", PCNET_INST_NR, addr, val)); return val; } /** * @callback_method_impl{FNIOMIOPORTIN, APROM} */ static DECLCALLBACK(VBOXSTRICTRC) pcnetIOPortAPromRead(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t *pu32, unsigned cb) { PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); VBOXSTRICTRC rc = VINF_SUCCESS; STAM_PROFILE_ADV_START(&pThis->StatAPROMRead, a); Assert(PDMDevHlpCritSectIsOwner(pDevIns, &pThis->CritSect)); RT_NOREF_PV(pvUser); /* FreeBSD is accessing in dwords. */ if (cb == 1) *pu32 = pcnetAPROMReadU8(pThis, offPort); else if (cb == 2 && !BCR_DWIO(pThis)) *pu32 = pcnetAPROMReadU8(pThis, offPort) | (pcnetAPROMReadU8(pThis, offPort + 1) << 8); else if (cb == 4 && BCR_DWIO(pThis)) *pu32 = pcnetAPROMReadU8(pThis, offPort) | (pcnetAPROMReadU8(pThis, offPort + 1) << 8) | (pcnetAPROMReadU8(pThis, offPort + 2) << 16) | (pcnetAPROMReadU8(pThis, offPort + 3) << 24); else { Log(("#%d pcnetIOPortAPromRead: offPort=%RTiop cb=%d BCR_DWIO !!\n", PCNET_INST_NR, offPort, cb)); rc = VERR_IOM_IOPORT_UNUSED; } STAM_PROFILE_ADV_STOP(&pThis->StatAPROMRead, a); LogFlow(("#%d pcnetIOPortAPromRead: offPort=%RTiop *pu32=%#RX32 cb=%d rc=%Rrc\n", PCNET_INST_NR, offPort, *pu32, cb, VBOXSTRICTRC_VAL(rc))); return rc; } /** * @callback_method_impl{FNIOMIOPORTOUT, APROM} */ static DECLCALLBACK(VBOXSTRICTRC) pcnetIoPortAPromWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb) { PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); VBOXSTRICTRC rc = VINF_SUCCESS; Assert(PDMDevHlpCritSectIsOwner(pDevIns, &pThis->CritSect)); RT_NOREF_PV(pvUser); if (cb == 1) { STAM_PROFILE_ADV_START(&pThis->StatAPROMWrite, a); pcnetAPROMWriteU8(pThis, offPort, u32); STAM_PROFILE_ADV_STOP(&pThis->StatAPROMWrite, a); } else rc = PDMDevHlpDBGFStop(pDevIns, RT_SRC_POS, "offPort=%#x cb=%d u32=%#x\n", offPort, cb, u32); LogFlow(("#%d pcnetIoPortAPromWrite: offPort=%RTiop u32=%#RX32 cb=%d rc=%Rrc\n", PCNET_INST_NR, offPort, u32, cb, VBOXSTRICTRC_VAL(rc))); return rc; } /* -=-=-=-=-=- I/O Port access -=-=-=-=-=- */ static VBOXSTRICTRC pcnetIoPortWriteU8(PPCNETSTATE pThis, uint32_t addr, uint32_t val) { RT_NOREF1(val); Log6(("#%d pcnetIoPortWriteU8: addr=%#010x val=%#06x\n", PCNET_INST_NR, addr, val)); if (RT_LIKELY(!BCR_DWIO(pThis))) { switch (addr & 0x0f) { case 0x04: /* RESET */ break; } } else Log(("#%d pcnetIoPortWriteU8: addr=%#010x val=%#06x BCR_DWIO !!\n", PCNET_INST_NR, addr, val)); return VINF_SUCCESS; } static uint32_t pcnetIoPortReadU8(PPDMDEVINS pDevIns, PPCNETSTATE pThis, uint32_t addr) { uint32_t val = UINT32_MAX; if (RT_LIKELY(!BCR_DWIO(pThis))) { switch (addr & 0x0f) { case 0x04: /* RESET */ pcnetSoftReset(pThis); val = 0; break; } } else Log(("#%d pcnetIoPortReadU8: addr=%#010x val=%#06x BCR_DWIO !!\n", PCNET_INST_NR, addr, val & 0xff)); pcnetUpdateIrq(pDevIns, pThis); Log6(("#%d pcnetIoPortReadU8: addr=%#010x val=%#06x\n", PCNET_INST_NR, addr, val & 0xff)); return val; } static VBOXSTRICTRC pcnetIoPortWriteU16(PPDMDEVINS pDevIns, PPCNETSTATE pThis, PPCNETSTATECC pThisCC, uint32_t addr, uint32_t val) { VBOXSTRICTRC rc = VINF_SUCCESS; Log6(("#%d pcnetIoPortWriteU16: addr=%#010x val=%#06x\n", PCNET_INST_NR, addr, val)); if (RT_LIKELY(!BCR_DWIO(pThis))) { switch (addr & 0x0f) { case 0x00: /* RDP */ pcnetPollTimer(pDevIns, pThis, pThisCC); rc = pcnetCSRWriteU16(pDevIns, pThis, pThisCC, pThis->u32RAP, val); pcnetUpdateIrq(pDevIns, pThis); break; case 0x02: /* RAP */ pThis->u32RAP = val & 0x7f; break; case 0x06: /* BDP */ rc = pcnetBCRWriteU16(pDevIns, pThis, pThis->u32RAP, val); break; } } else Log(("#%d pcnetIoPortWriteU16: addr=%#010x val=%#06x BCR_DWIO !!\n", PCNET_INST_NR, addr, val)); return rc; } static uint32_t pcnetIoPortReadU16(PPDMDEVINS pDevIns, PPCNETSTATE pThis, PPCNETSTATECC pThisCC, uint32_t addr) { uint32_t val = ~0U; if (RT_LIKELY(!BCR_DWIO(pThis))) { switch (addr & 0x0f) { case 0x00: /* RDP */ /** @note if we're not polling, then the guest will tell us when to poll by setting TDMD in CSR0 */ /** Polling is then useless here and possibly expensive. */ if (!CSR_DPOLL(pThis)) pcnetPollTimer(pDevIns, pThis, pThisCC); val = pcnetCSRReadU16(pDevIns, pThis, pThis->u32RAP); if (pThis->u32RAP == 0) // pcnetUpdateIrq() already called by pcnetCSRReadU16() goto skip_update_irq; break; case 0x02: /* RAP */ val = pThis->u32RAP; goto skip_update_irq; case 0x04: /* RESET */ pcnetSoftReset(pThis); val = 0; break; case 0x06: /* BDP */ val = pcnetBCRReadU16(pThis, pThis->u32RAP); break; } } else Log(("#%d pcnetIoPortReadU16: addr=%#010x val=%#06x BCR_DWIO !!\n", PCNET_INST_NR, addr, val & 0xffff)); pcnetUpdateIrq(pDevIns, pThis); skip_update_irq: Log6(("#%d pcnetIoPortReadU16: addr=%#010x val=%#06x\n", PCNET_INST_NR, addr, val & 0xffff)); return val; } static VBOXSTRICTRC pcnetIoPortWriteU32(PPDMDEVINS pDevIns, PPCNETSTATE pThis, PPCNETSTATECC pThisCC, uint32_t addr, uint32_t val) { VBOXSTRICTRC rc = VINF_SUCCESS; Log6(("#%d pcnetIoPortWriteU32: addr=%#010x val=%#010x\n", PCNET_INST_NR, addr, val)); if (RT_LIKELY(BCR_DWIO(pThis))) { switch (addr & 0x0f) { case 0x00: /* RDP */ pcnetPollTimer(pDevIns, pThis, pThisCC); rc = pcnetCSRWriteU16(pDevIns, pThis, pThisCC, pThis->u32RAP, val & 0xffff); pcnetUpdateIrq(pDevIns, pThis); break; case 0x04: /* RAP */ pThis->u32RAP = val & 0x7f; break; case 0x0c: /* BDP */ rc = pcnetBCRWriteU16(pDevIns, pThis, pThis->u32RAP, val & 0xffff); break; } } else if ((addr & 0x0f) == 0) { /* switch device to dword I/O mode */ pcnetBCRWriteU16(pDevIns, pThis, BCR_BSBC, pcnetBCRReadU16(pThis, BCR_BSBC) | 0x0080); Log6(("device switched into dword i/o mode\n")); } else Log(("#%d pcnetIoPortWriteU32: addr=%#010x val=%#010x !BCR_DWIO !!\n", PCNET_INST_NR, addr, val)); return rc; } static uint32_t pcnetIoPortReadU32(PPDMDEVINS pDevIns, PPCNETSTATE pThis, PPCNETSTATECC pThisCC, uint32_t addr) { uint32_t val = ~0U; if (RT_LIKELY(BCR_DWIO(pThis))) { switch (addr & 0x0f) { case 0x00: /* RDP */ /** @note if we're not polling, then the guest will tell us when to poll by setting TDMD in CSR0 */ /** Polling is then useless here and possibly expensive. */ if (!CSR_DPOLL(pThis)) pcnetPollTimer(pDevIns, pThis, pThisCC); val = pcnetCSRReadU16(pDevIns, pThis, pThis->u32RAP); if (pThis->u32RAP == 0) // pcnetUpdateIrq() already called by pcnetCSRReadU16() goto skip_update_irq; break; case 0x04: /* RAP */ val = pThis->u32RAP; goto skip_update_irq; case 0x08: /* RESET */ pcnetSoftReset(pThis); val = 0; break; case 0x0c: /* BDP */ val = pcnetBCRReadU16(pThis, pThis->u32RAP); break; } } else Log(("#%d pcnetIoPortReadU32: addr=%#010x val=%#010x !BCR_DWIO !!\n", PCNET_INST_NR, addr, val)); pcnetUpdateIrq(pDevIns, pThis); skip_update_irq: Log6(("#%d pcnetIoPortReadU32: addr=%#010x val=%#010x\n", PCNET_INST_NR, addr, val)); return val; } /** * @callback_method_impl{FNIOMIOPORTIN} */ static DECLCALLBACK(VBOXSTRICTRC) pcnetIoPortRead(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t *pu32, unsigned cb) { PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); PPCNETSTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PPCNETSTATECC); VBOXSTRICTRC rc = VINF_SUCCESS; STAM_PROFILE_ADV_START(&pThis->CTX_SUFF_Z(StatIORead), a); Assert(PDMDevHlpCritSectIsOwner(pDevIns, &pThis->CritSect)); RT_NOREF_PV(pvUser); switch (cb) { case 1: *pu32 = pcnetIoPortReadU8(pDevIns, pThis, offPort); break; case 2: *pu32 = pcnetIoPortReadU16(pDevIns, pThis, pThisCC, offPort); break; case 4: *pu32 = pcnetIoPortReadU32(pDevIns, pThis, pThisCC, offPort); break; default: rc = PDMDevHlpDBGFStop(pDevIns, RT_SRC_POS, "pcnetIoPortRead: unsupported op size: offset=%#10x cb=%u\n", offPort, cb); } Log2(("#%d pcnetIoPortRead: offPort=%RTiop *pu32=%#RX32 cb=%d rc=%Rrc\n", PCNET_INST_NR, offPort, *pu32, cb, VBOXSTRICTRC_VAL(rc))); STAM_PROFILE_ADV_STOP(&pThis->CTX_SUFF_Z(StatIORead), a); return rc; } /** * @callback_method_impl{FNIOMIOPORTOUT} */ static DECLCALLBACK(VBOXSTRICTRC) pcnetIoPortWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb) { PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); PPCNETSTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PPCNETSTATECC); VBOXSTRICTRC rc; STAM_PROFILE_ADV_START(&pThis->CTX_SUFF_Z(StatIOWrite), a); Assert(PDMDevHlpCritSectIsOwner(pDevIns, &pThis->CritSect)); RT_NOREF_PV(pvUser); switch (cb) { case 1: rc = pcnetIoPortWriteU8(pThis, offPort, u32); break; case 2: rc = pcnetIoPortWriteU16(pDevIns, pThis, pThisCC, offPort, u32); break; case 4: rc = pcnetIoPortWriteU32(pDevIns, pThis, pThisCC, offPort, u32); break; default: rc = PDMDevHlpDBGFStop(pDevIns, RT_SRC_POS, "pcnetIoPortWrite: unsupported op size: offset=%#10x cb=%u\n", offPort, cb); } Log2(("#%d pcnetIoPortWrite: offPort=%RTiop u32=%#RX32 cb=%d rc=%Rrc\n", PCNET_INST_NR, offPort, u32, cb, VBOXSTRICTRC_VAL(rc))); STAM_PROFILE_ADV_STOP(&pThis->CTX_SUFF_Z(StatIOWrite), a); return rc; } /* -=-=-=-=-=- MMIO -=-=-=-=-=- */ #ifdef IN_RING3 static void pcnetR3MmioWriteU8(PPCNETSTATE pThis, RTGCPHYS off, uint32_t val) { Log6(("#%d pcnetR3MmioWriteU8: off=%#010x val=%#04x\n", PCNET_INST_NR, off, val)); if (!(off & 0x10)) pcnetAPROMWriteU8(pThis, off, val); } static uint32_t pcnetR3MmioReadU8(PPCNETSTATE pThis, RTGCPHYS addr) { uint32_t val = ~0U; if (!(addr & 0x10)) val = pcnetAPROMReadU8(pThis, addr); Log6(("#%d pcnetR3MmioReadU8: addr=%#010x val=%#04x\n", PCNET_INST_NR, addr, val & 0xff)); return val; } static VBOXSTRICTRC pcnetR3MmioWriteU16(PPDMDEVINS pDevIns, PPCNETSTATE pThis, PPCNETSTATECC pThisCC, RTGCPHYS off, uint32_t val) { VBOXSTRICTRC rcStrict; Log6(("#%d pcnetR3MmioWriteU16: off=%#010x val=%#06x\n", PCNET_INST_NR, off, val)); if (off & 0x10) { rcStrict = pcnetIoPortWriteU16(pDevIns, pThis, pThisCC, off & 0x0f, val); if (rcStrict == VINF_IOM_R3_IOPORT_WRITE) rcStrict = VINF_IOM_R3_MMIO_WRITE; } else { pcnetAPROMWriteU8(pThis, off, val ); pcnetAPROMWriteU8(pThis, off + 1, val >> 8); rcStrict = VINF_SUCCESS; } return rcStrict; } static uint32_t pcnetR3MmioReadU16(PPDMDEVINS pDevIns, PPCNETSTATE pThis, PPCNETSTATECC pThisCC, RTGCPHYS addr) { uint32_t val = ~0U; if (addr & 0x10) val = pcnetIoPortReadU16(pDevIns, pThis, pThisCC, addr & 0x0f); else { val = pcnetAPROMReadU8(pThis, addr+1); val <<= 8; val |= pcnetAPROMReadU8(pThis, addr); } Log6(("#%d pcnetR3MmioReadU16: addr=%#010x val = %#06x\n", PCNET_INST_NR, addr, val & 0xffff)); return val; } static VBOXSTRICTRC pcnetR3MmioWriteU32(PPDMDEVINS pDevIns, PPCNETSTATE pThis, PPCNETSTATECC pThisCC, RTGCPHYS off, uint32_t val) { VBOXSTRICTRC rcStrict; Log6(("#%d pcnetR3MmioWriteU32: off=%#010x val=%#010x\n", PCNET_INST_NR, off, val)); if (off & 0x10) { rcStrict = pcnetIoPortWriteU32(pDevIns, pThis, pThisCC, off & 0x0f, val); if (rcStrict == VINF_IOM_R3_IOPORT_WRITE) rcStrict = VINF_IOM_R3_MMIO_WRITE; } else { pcnetAPROMWriteU8(pThis, off, val ); pcnetAPROMWriteU8(pThis, off + 1, val >> 8); pcnetAPROMWriteU8(pThis, off + 2, val >> 16); pcnetAPROMWriteU8(pThis, off + 3, val >> 24); rcStrict = VINF_SUCCESS; } return rcStrict; } static uint32_t pcnetR3MmioReadU32(PPDMDEVINS pDevIns, PPCNETSTATE pThis, PPCNETSTATECC pThisCC, RTGCPHYS addr) { uint32_t val; if (addr & 0x10) val = pcnetIoPortReadU32(pDevIns, pThis, pThisCC, addr & 0x0f); else { val = pcnetAPROMReadU8(pThis, addr+3); val <<= 8; val |= pcnetAPROMReadU8(pThis, addr+2); val <<= 8; val |= pcnetAPROMReadU8(pThis, addr+1); val <<= 8; val |= pcnetAPROMReadU8(pThis, addr ); } Log6(("#%d pcnetR3MmioReadU32: addr=%#010x val=%#010x\n", PCNET_INST_NR, addr, val)); return val; } /** * @callback_method_impl{FNIOMMMIONEWREAD} */ static DECLCALLBACK(VBOXSTRICTRC) pcnetR3MmioRead(PPDMDEVINS pDevIns, void *pvUser, RTGCPHYS off, void *pv, unsigned cb) { PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); PPCNETSTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PPCNETSTATECC); VBOXSTRICTRC rc = VINF_SUCCESS; Assert(PDMDevHlpCritSectIsOwner(pDevIns, &pThis->CritSect)); RT_NOREF_PV(pvUser); /* * We have to check the range, because we're page aligning the MMIO. */ if (off < PCNET_PNPMMIO_SIZE) { STAM_PROFILE_ADV_START(&pThis->CTX_SUFF_Z(StatMMIORead), a); switch (cb) { case 1: *(uint8_t *)pv = pcnetR3MmioReadU8 (pThis, off); break; case 2: *(uint16_t *)pv = pcnetR3MmioReadU16(pDevIns, pThis, pThisCC, off); break; case 4: *(uint32_t *)pv = pcnetR3MmioReadU32(pDevIns, pThis, pThisCC, off); break; default: rc = PDMDevHlpDBGFStop(pDevIns, RT_SRC_POS, "pcnetR3MmioRead: unsupported op size: address=%RGp cb=%u\n", off, cb); } STAM_PROFILE_ADV_STOP(&pThis->CTX_SUFF_Z(StatMMIORead), a); } else memset(pv, 0, cb); LogFlow(("#%d pcnetR3MmioRead: pvUser=%p:{%.*Rhxs} cb=%d off=%RGp rc=%Rrc\n", PCNET_INST_NR, pv, cb, pv, cb, off, VBOXSTRICTRC_VAL(rc))); return rc; } /** * @callback_method_impl{FNIOMMMIONEWWRITE} */ static DECLCALLBACK(VBOXSTRICTRC) pcnetR3MmioWrite(PPDMDEVINS pDevIns, void *pvUser, RTGCPHYS off, void const *pv, unsigned cb) { PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); PPCNETSTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PPCNETSTATECC); VBOXSTRICTRC rc = VINF_SUCCESS; Assert(PDMDevHlpCritSectIsOwner(pDevIns, &pThis->CritSect)); RT_NOREF_PV(pvUser); /* * We have to check the range, because we're page aligning the MMIO stuff presently. */ if (off < PCNET_PNPMMIO_SIZE) { STAM_PROFILE_ADV_START(&pThis->CTX_SUFF_Z(StatMMIOWrite), a); switch (cb) { case 1: pcnetR3MmioWriteU8(pThis, off, *(uint8_t *)pv); break; case 2: rc = pcnetR3MmioWriteU16(pDevIns, pThis, pThisCC, off, *(uint16_t *)pv); break; case 4: rc = pcnetR3MmioWriteU32(pDevIns, pThis, pThisCC, off, *(uint32_t *)pv); break; default: rc = PDMDevHlpDBGFStop(pDevIns, RT_SRC_POS, "pcnetR3MmioWrite: unsupported op size: address=%RGp cb=%u\n", off, cb); } STAM_PROFILE_ADV_STOP(&pThis->CTX_SUFF_Z(StatMMIOWrite), a); } LogFlow(("#%d pcnetR3MmioWrite: pvUser=%p:{%.*Rhxs} cb=%d off=%RGp rc=%Rrc\n", PCNET_INST_NR, pv, cb, pv, cb, off, VBOXSTRICTRC_VAL(rc))); return rc; } /* -=-=-=-=-=- Timer Callbacks -=-=-=-=-=- */ /** * @callback_method_impl{FNTMTIMERDEV, Poll timer} */ static DECLCALLBACK(void) pcnetR3Timer(PPDMDEVINS pDevIns, TMTIMERHANDLE hTimer, void *pvUser) { PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); PPCNETSTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PPCNETSTATECC); Assert(PDMDevHlpCritSectIsOwner(pDevIns, &pThis->CritSect)); Assert(hTimer == pThis->hTimerPoll); RT_NOREF(pvUser, hTimer); STAM_PROFILE_ADV_START(&pThis->StatTimer, a); pcnetPollTimer(pDevIns, pThis, pThisCC); STAM_PROFILE_ADV_STOP(&pThis->StatTimer, a); } /** * @callback_method_impl{FNTMTIMERDEV, * Software interrupt timer callback function.} */ static DECLCALLBACK(void) pcnetR3TimerSoftInt(PPDMDEVINS pDevIns, TMTIMERHANDLE hTimer, void *pvUser) { PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); Assert(PDMDevHlpCritSectIsOwner(pDevIns, &pThis->CritSect)); Assert(hTimer == pThis->hTimerSoftInt); RT_NOREF(pvUser, hTimer); pThis->aCSR[7] |= 0x0800; /* STINT */ pcnetUpdateIrq(pDevIns, pThis); PDMDevHlpTimerSetNano(pDevIns, pThis->hTimerSoftInt, 12800U * (pThis->aBCR[BCR_STVAL] & 0xffff)); } /** * @callback_method_impl{FNTMTIMERDEV, Restore timer callback} * * This is only called when we restore a saved state and temporarily * disconnected the network link to inform the guest that network connections * should be considered lost. */ static DECLCALLBACK(void) pcnetR3TimerRestore(PPDMDEVINS pDevIns, TMTIMERHANDLE hTimer, void *pvUser) { PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); Assert(hTimer == pThis->hTimerRestore); RT_NOREF(pvUser); int rc = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_SEM_BUSY); PDM_CRITSECT_RELEASE_ASSERT_RC_DEV(pDevIns, &pThis->CritSect, rc); rc = VERR_GENERAL_FAILURE; /* 10 Mbps models (up to and including Am79C970A) have no MII and no way to get * an MII management auto-poll interrupt (MAPINT) indicating link state changes. * In some cases we want to make sure the guest really noticed the link going down; * the cLinkDownReported counter is incremented every time the guest did something * that might have made it notice the link loss, and we only bring the link back * up once we're reasonably certain the guest knows it was down. */ if (pThis->cLinkDownReported <= PCNET_MAX_LINKDOWN_REPORTED) { rc = PDMDevHlpTimerSetMillies(pDevIns, hTimer, 1500); AssertRC(rc); } if (RT_FAILURE(rc)) { pThis->fLinkTempDown = false; if (pThis->fLinkUp) { LogRel(("PCnet#%d: The link is back up again after the restore.\n", pDevIns->iInstance)); Log(("#%d pcnetR3TimerRestore: Clearing ERR and CERR after load. cLinkDownReported=%d\n", pDevIns->iInstance, pThis->cLinkDownReported)); pThis->aCSR[0] &= ~(RT_BIT(15) | RT_BIT(13)); /* ERR | CERR - probably not 100% correct either... */ pThis->Led.Actual.s.fError = 0; } } else Log(("#%d pcnetR3TimerRestore: cLinkDownReported=%d, wait another 1500ms...\n", pDevIns->iInstance, pThis->cLinkDownReported)); PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect); } /* -=-=-=-=-=- PCI Device Callbacks -=-=-=-=-=- */ /** * @callback_method_impl{FNPCIIOREGIONMAP, For the PCnet I/O Ports.} */ static DECLCALLBACK(int) pcnetR3PciMapUnmapIoPorts(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, uint32_t iRegion, RTGCPHYS GCPhysAddress, RTGCPHYS cb, PCIADDRESSSPACE enmType) { PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); int rc; RT_NOREF(iRegion, cb, enmType, pPciDev); Assert(pDevIns->apPciDevs[0] == pPciDev); Assert(enmType == PCI_ADDRESS_SPACE_IO); Assert(cb >= 0x20); if (GCPhysAddress != NIL_RTGCPHYS) { RTIOPORT Port = (RTIOPORT)GCPhysAddress; rc = PDMDevHlpIoPortMap(pDevIns, pThis->hIoPortsPciAProm, Port); AssertRCReturn(rc, rc); rc = PDMDevHlpIoPortMap(pDevIns, pThis->hIoPortsPci, Port + 0x10); AssertRCReturn(rc, rc); pThis->IOPortBase = Port; } else { rc = PDMDevHlpIoPortUnmap(pDevIns, pThis->hIoPortsPciAProm); AssertRCReturn(rc, rc); rc = PDMDevHlpIoPortUnmap(pDevIns, pThis->hIoPortsPci); AssertRCReturn(rc, rc); pThis->IOPortBase = 0; } return VINF_SUCCESS; } /* -=-=-=-=-=- Debug Info Handler -=-=-=-=-=- */ /** * @callback_method_impl{FNDBGFHANDLERDEV} */ static DECLCALLBACK(void) pcnetR3Info(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs) { PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); bool fRcvRing = false; bool fXmtRing = false; bool fAPROM = false; /* * Parse args. */ if (pszArgs) { fRcvRing = strstr(pszArgs, "verbose") || strstr(pszArgs, "rcv"); fXmtRing = strstr(pszArgs, "verbose") || strstr(pszArgs, "xmt"); fAPROM = strstr(pszArgs, "verbose") || strstr(pszArgs, "aprom"); } /* * Show info. */ const char *pcszModel; switch (pThis->uDevType) { case DEV_AM79C970A: pcszModel = "AM79C970A"; break; case DEV_AM79C973: pcszModel = "AM79C973"; break; case DEV_AM79C960: pcszModel = "AM79C960/NE2100"; break; case DEV_AM79C960_EB: pcszModel = "AM79C960/EtherBlaster"; break; default: pcszModel = "Unknown"; break; } pHlp->pfnPrintf(pHlp, "pcnet #%d: port=%RTiop", pDevIns->iInstance, pThis->IOPortBase); if (PCNET_IS_ISA(pThis)) pHlp->pfnPrintf(pHlp, " irq=%RX32", pThis->uIsaIrq); else pHlp->pfnPrintf(pHlp, " mmio=%RX32", PDMDevHlpMmioGetMappingAddress(pDevIns, pThis->hMmioPci)); pHlp->pfnPrintf(pHlp, " mac-cfg=%RTmac %s%s%s\n", &pThis->MacConfigured, pcszModel, pDevIns->fRCEnabled ? " RC" : "", pDevIns->fR0Enabled ? " R0" : ""); int const rcLock = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_INTERNAL_ERROR); /* Take it here so we know why we're hanging... */ PDM_CRITSECT_RELEASE_ASSERT_RC_DEV(pDevIns, &pThis->CritSect, rcLock); pHlp->pfnPrintf(pHlp, "CSR0=%#06x: INIT=%d STRT=%d STOP=%d TDMD=%d TXON=%d RXON=%d IENA=%d INTR=%d IDON=%d TINT=%d RINT=%d MERR=%d\n" " MISS=%d CERR=%d BABL=%d ERR=%d\n", pThis->aCSR[0], !!(pThis->aCSR[0] & RT_BIT(0)), !!(pThis->aCSR[0] & RT_BIT(1)), !!(pThis->aCSR[0] & RT_BIT(2)), !!(pThis->aCSR[0] & RT_BIT(3)), !!(pThis->aCSR[0] & RT_BIT(4)), !!(pThis->aCSR[0] & RT_BIT(5)), !!(pThis->aCSR[0] & RT_BIT(6)), !!(pThis->aCSR[0] & RT_BIT(7)), !!(pThis->aCSR[0] & RT_BIT(8)), !!(pThis->aCSR[0] & RT_BIT(9)), !!(pThis->aCSR[0] & RT_BIT(10)), !!(pThis->aCSR[0] & RT_BIT(11)), !!(pThis->aCSR[0] & RT_BIT(12)), !!(pThis->aCSR[0] & RT_BIT(13)), !!(pThis->aCSR[0] & RT_BIT(14)), !!(pThis->aCSR[0] & RT_BIT(15))); pHlp->pfnPrintf(pHlp, "CSR1=%#06x:\n", pThis->aCSR[1]); pHlp->pfnPrintf(pHlp, "CSR2=%#06x:\n", pThis->aCSR[2]); pHlp->pfnPrintf(pHlp, "CSR3=%#06x: BSWP=%d EMBA=%d DXMT2PD=%d LAPPEN=%d DXSUFLO=%d IDONM=%d TINTM=%d RINTM=%d MERRM=%d MISSM=%d BABLM=%d\n", pThis->aCSR[3], !!(pThis->aCSR[3] & RT_BIT(2)), !!(pThis->aCSR[3] & RT_BIT(3)), !!(pThis->aCSR[3] & RT_BIT(4)), CSR_LAPPEN(pThis), CSR_DXSUFLO(pThis), !!(pThis->aCSR[3] & RT_BIT(8)), !!(pThis->aCSR[3] & RT_BIT(9)), !!(pThis->aCSR[3] & RT_BIT(10)), !!(pThis->aCSR[3] & RT_BIT(11)), !!(pThis->aCSR[3] & RT_BIT(12)), !!(pThis->aCSR[3] & RT_BIT(14))); pHlp->pfnPrintf(pHlp, "CSR4=%#06x: JABM=%d JAB=%d TXSTRM=%d TXSTRT=%d RCVCOOM=%d RCVCCO=%d UINT=%d UINTCMD=%d\n" " MFCOM=%d MFCO=%d ASTRP_RCV=%d APAD_XMT=%d DPOLL=%d TIMER=%d EMAPLUS=%d EN124=%d\n", pThis->aCSR[4], !!(pThis->aCSR[4] & RT_BIT( 0)), !!(pThis->aCSR[4] & RT_BIT( 1)), !!(pThis->aCSR[4] & RT_BIT( 2)), !!(pThis->aCSR[4] & RT_BIT( 3)), !!(pThis->aCSR[4] & RT_BIT( 4)), !!(pThis->aCSR[4] & RT_BIT( 5)), !!(pThis->aCSR[4] & RT_BIT( 6)), !!(pThis->aCSR[4] & RT_BIT( 7)), !!(pThis->aCSR[4] & RT_BIT( 8)), !!(pThis->aCSR[4] & RT_BIT( 9)), !!(pThis->aCSR[4] & RT_BIT(10)), !!(pThis->aCSR[4] & RT_BIT(11)), !!(pThis->aCSR[4] & RT_BIT(12)), !!(pThis->aCSR[4] & RT_BIT(13)), !!(pThis->aCSR[4] & RT_BIT(14)), !!(pThis->aCSR[4] & RT_BIT(15))); pHlp->pfnPrintf(pHlp, "CSR5=%#06x:\n", pThis->aCSR[5]); pHlp->pfnPrintf(pHlp, "CSR6=%#06x: RLEN=%#x* TLEN=%#x* [* encoded]\n", pThis->aCSR[6], (pThis->aCSR[6] >> 8) & 0xf, (pThis->aCSR[6] >> 12) & 0xf); pHlp->pfnPrintf(pHlp, "CSR8..11=%#06x,%#06x,%#06x,%#06x: LADRF=%#018llx\n", pThis->aCSR[8], pThis->aCSR[9], pThis->aCSR[10], pThis->aCSR[11], (uint64_t)(pThis->aCSR[ 8] & 0xffff) | (uint64_t)(pThis->aCSR[ 9] & 0xffff) << 16 | (uint64_t)(pThis->aCSR[10] & 0xffff) << 32 | (uint64_t)(pThis->aCSR[11] & 0xffff) << 48); pHlp->pfnPrintf(pHlp, "CSR12..14=%#06x,%#06x,%#06x: PADR=%02x:%02x:%02x:%02x:%02x:%02x (Current MAC Address)\n", pThis->aCSR[12], pThis->aCSR[13], pThis->aCSR[14], pThis->aCSR[12] & 0xff, (pThis->aCSR[12] >> 8) & 0xff, pThis->aCSR[13] & 0xff, (pThis->aCSR[13] >> 8) & 0xff, pThis->aCSR[14] & 0xff, (pThis->aCSR[14] >> 8) & 0xff); pHlp->pfnPrintf(pHlp, "CSR15=%#06x: DXR=%d DTX=%d LOOP=%d DXMTFCS=%d FCOLL=%d DRTY=%d INTL=%d PORTSEL=%d LTR=%d\n" " MENDECL=%d DAPC=%d DLNKTST=%d DRCVPV=%d DRCVBC=%d PROM=%d\n", pThis->aCSR[15], !!(pThis->aCSR[15] & RT_BIT( 0)), !!(pThis->aCSR[15] & RT_BIT( 1)), !!(pThis->aCSR[15] & RT_BIT( 2)), !!(pThis->aCSR[15] & RT_BIT( 3)), !!(pThis->aCSR[15] & RT_BIT( 4)), !!(pThis->aCSR[15] & RT_BIT( 5)), !!(pThis->aCSR[15] & RT_BIT( 6)), (pThis->aCSR[15] >> 7) & 3, !!(pThis->aCSR[15] & RT_BIT( 9)), !!(pThis->aCSR[15] & RT_BIT(10)), !!(pThis->aCSR[15] & RT_BIT(11)), !!(pThis->aCSR[15] & RT_BIT(12)), !!(pThis->aCSR[15] & RT_BIT(13)), !!(pThis->aCSR[15] & RT_BIT(14)), !!(pThis->aCSR[15] & RT_BIT(15))); pHlp->pfnPrintf(pHlp, "CSR46=%#06x: POLL=%#06x (Poll Time Counter)\n", pThis->aCSR[46], pThis->aCSR[46] & 0xffff); pHlp->pfnPrintf(pHlp, "CSR47=%#06x: POLLINT=%#06x (Poll Time Interval)\n", pThis->aCSR[47], pThis->aCSR[47] & 0xffff); pHlp->pfnPrintf(pHlp, "CSR58=%#06x: SWSTYLE=%d %s SSIZE32=%d CSRPCNET=%d APERRENT=%d\n", pThis->aCSR[58], pThis->aCSR[58] & 0x7f, (pThis->aCSR[58] & 0x7f) == 0 ? "C-LANCE / PCnet-ISA" : (pThis->aCSR[58] & 0x7f) == 1 ? "ILACC" : (pThis->aCSR[58] & 0x7f) == 2 ? "PCnet-32" : (pThis->aCSR[58] & 0x7f) == 3 ? "PCnet-PCI II" : "!!reserved!!", !!(pThis->aCSR[58] & RT_BIT(8)), !!(pThis->aCSR[58] & RT_BIT(9)), !!(pThis->aCSR[58] & RT_BIT(10))); pHlp->pfnPrintf(pHlp, "CSR112=%04RX32: MFC=%04x (Missed receive Frame Count)\n", pThis->aCSR[112], pThis->aCSR[112] & 0xffff); pHlp->pfnPrintf(pHlp, "CSR122=%04RX32: RCVALGN=%04x (Receive Frame Align)\n", pThis->aCSR[122], !!(pThis->aCSR[122] & RT_BIT(0))); pHlp->pfnPrintf(pHlp, "CSR124=%04RX32: RPA=%04x (Runt Packet Accept)\n", pThis->aCSR[122], !!(pThis->aCSR[122] & RT_BIT(3))); if (pThis->uDevType == DEV_AM79C970A || pThis->uDevType == DEV_AM79C973) { /* Print the Burst and Bus Control Register; the DWIO bit is quite important. */ pHlp->pfnPrintf(pHlp, "BCR18=%#04x: ROMTMG=%u MEMCMD=%u EXTREQ=%u\n" " DWIO=%u BREADE=%u BWRITE=%u\n", pThis->aBCR[18], (pThis->aBCR[18] >> 12) & 0xf, !!(pThis->aBCR[18] & RT_BIT(9)), !!(pThis->aBCR[18] & RT_BIT(8)), !!(pThis->aBCR[18] & RT_BIT(7)), !!(pThis->aBCR[18] & RT_BIT(6)), !!(pThis->aBCR[18] & RT_BIT(5))); } if (pThis->uDevType == DEV_AM79C973) { /* Print a bit of the MII state. */ pHlp->pfnPrintf(pHlp, "BCR32=%#06x: MIIILP=%d XPHYSP=%d XPHYFD=%d XPHYANE=%d XPHYRST=%d\n" " DANAS=%d APDW=%u APEP=%d FMDC=%u MIIPD=%d ANTST=%d\n", pThis->aBCR[32], !!(pThis->aBCR[32] & RT_BIT( 1)), !!(pThis->aBCR[32] & RT_BIT( 3)), !!(pThis->aBCR[32] & RT_BIT( 4)), !!(pThis->aBCR[32] & RT_BIT( 5)), !!(pThis->aBCR[32] & RT_BIT( 6)), !!(pThis->aBCR[32] & RT_BIT( 7)), (pThis->aBCR[32] >> 8) & 0x7, !!(pThis->aBCR[32] & RT_BIT(11)), (pThis->aBCR[32] >> 12) & 0x3, !!(pThis->aBCR[32] & RT_BIT(14)), !!(pThis->aBCR[32] & RT_BIT(15))); } /* * Dump the receive ring. */ pHlp->pfnPrintf(pHlp, "RCVRL=%04x RCVRC=%04x GCRDRA=%RX32 \n" "CRDA=%08RX32 CRBA=%08RX32 CRBC=%03x CRST=%04x\n" "NRDA=%08RX32 NRBA=%08RX32 NRBC=%03x NRST=%04x\n" "NNRDA=%08RX32\n" , CSR_RCVRL(pThis), CSR_RCVRC(pThis), pThis->GCRDRA, CSR_CRDA(pThis), CSR_CRBA(pThis), CSR_CRBC(pThis), CSR_CRST(pThis), CSR_NRDA(pThis), CSR_NRBA(pThis), CSR_NRBC(pThis), CSR_NRST(pThis), CSR_NNRD(pThis)); if (fRcvRing) { const unsigned cb = 1 << pThis->iLog2DescSize; RTGCPHYS32 GCPhys = pThis->GCRDRA; unsigned i = CSR_RCVRL(pThis); while (i-- > 0) { RMD rmd; pcnetRmdLoad(pDevIns, pThis, &rmd, PHYSADDR(pThis, GCPhys), false); pHlp->pfnPrintf(pHlp, "%04x %RX32:%c%c RBADR=%08RX32 BCNT=%03x MCNT=%03x " "OWN=%d ERR=%d FRAM=%d OFLO=%d CRC=%d BUFF=%d STP=%d ENP=%d BPE=%d " "PAM=%d LAFM=%d BAM=%d RCC=%02x RPC=%02x ONES=%#x ZEROS=%d\n", i, GCPhys, i + 1 == CSR_RCVRC(pThis) ? '*' : ' ', GCPhys == CSR_CRDA(pThis) ? '*' : ' ', rmd.rmd0.rbadr, 4096 - rmd.rmd1.bcnt, rmd.rmd2.mcnt, rmd.rmd1.own, rmd.rmd1.err, rmd.rmd1.fram, rmd.rmd1.oflo, rmd.rmd1.crc, rmd.rmd1.buff, rmd.rmd1.stp, rmd.rmd1.enp, rmd.rmd1.bpe, rmd.rmd1.pam, rmd.rmd1.lafm, rmd.rmd1.bam, rmd.rmd2.rcc, rmd.rmd2.rpc, rmd.rmd1.ones, rmd.rmd2.zeros); GCPhys += cb; } } /* * Dump the transmit ring. */ pHlp->pfnPrintf(pHlp, "XMTRL=%04x XMTRC=%04x GCTDRA=%08RX32 BADX=%08RX32\n" "PXDA=%08RX32 PXBC=%03x PXST=%04x\n" "CXDA=%08RX32 CXBA=%08RX32 CXBC=%03x CXST=%04x\n" "NXDA=%08RX32 NXBA=%08RX32 NXBC=%03x NXST=%04x\n" "NNXDA=%08RX32\n" , CSR_XMTRL(pThis), CSR_XMTRC(pThis), pThis->GCTDRA, CSR_BADX(pThis), CSR_PXDA(pThis), CSR_PXBC(pThis), CSR_PXST(pThis), CSR_CXDA(pThis), CSR_CXBA(pThis), CSR_CXBC(pThis), CSR_CXST(pThis), CSR_NXDA(pThis), CSR_NXBA(pThis), CSR_NXBC(pThis), CSR_NXST(pThis), CSR_NNXD(pThis)); if (fXmtRing) { const unsigned cb = 1 << pThis->iLog2DescSize; RTGCPHYS32 GCPhys = pThis->GCTDRA; unsigned i = CSR_XMTRL(pThis); while (i-- > 0) { TMD tmd; pcnetTmdLoadAll(pDevIns, pThis, &tmd, PHYSADDR(pThis, GCPhys)); pHlp->pfnPrintf(pHlp, "%04x %RX32:%c%c TBADR=%08RX32 BCNT=%03x OWN=%d " "ERR=%d NOFCS=%d LTINT=%d ONE=%d DEF=%d STP=%d ENP=%d BPE=%d " "BUFF=%d UFLO=%d EXDEF=%d LCOL=%d LCAR=%d RTRY=%d TDR=%03x TRC=%#x ONES=%#x\n" , i, GCPhys, i + 1 == CSR_XMTRC(pThis) ? '*' : ' ', GCPhys == CSR_CXDA(pThis) ? '*' : ' ', tmd.tmd0.tbadr, 4096 - tmd.tmd1.bcnt, tmd.tmd1.own, tmd.tmd1.err, tmd.tmd1.nofcs, tmd.tmd1.ltint, tmd.tmd1.one, tmd.tmd1.def, tmd.tmd1.stp, tmd.tmd1.enp, tmd.tmd1.bpe, tmd.tmd2.buff, tmd.tmd2.uflo, tmd.tmd2.exdef, tmd.tmd2.lcol, tmd.tmd2.lcar, tmd.tmd2.rtry, tmd.tmd2.tdr, tmd.tmd2.trc, tmd.tmd1.ones); GCPhys += cb; } } /* Dump the Addres PROM (APROM). */ if (fAPROM) { pHlp->pfnPrintf(pHlp, "Address PROM:\n %Rhxs\n", pThis->aPROM); } PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect); } /* -=-=-=-=-=- Helper(s) -=-=-=-=-=- */ /** * Takes down the link temporarily if it's current status is up. * * This is used during restore and when replumbing the network link. * * The temporary link outage is supposed to indicate to the OS that all network * connections have been lost and that it for instance is appropriate to * renegotiate any DHCP lease. * * @param pThis The PCnet shared instance data. */ static void pcnetR3TempLinkDown(PPDMDEVINS pDevIns, PPCNETSTATE pThis) { if (pThis->fLinkUp) { pThis->fLinkTempDown = true; pThis->cLinkDownReported = 0; pThis->aCSR[0] |= RT_BIT(15) | RT_BIT(13); /* ERR | CERR (this is probably wrong) */ pThis->Led.Asserted.s.fError = pThis->Led.Actual.s.fError = 1; int rc = PDMDevHlpTimerSetMillies(pDevIns, pThis->hTimerRestore, pThis->cMsLinkUpDelay); AssertRC(rc); } } /* -=-=-=-=-=- Saved State -=-=-=-=-=- */ /** * Saves the configuration. * * @param pHlp The device helpers. * @param pThis The PCnet shared instance data. * @param pSSM The saved state handle. */ static void pcnetR3SaveConfig(PCPDMDEVHLPR3 pHlp, PPCNETSTATE pThis, PSSMHANDLE pSSM) { pHlp->pfnSSMPutMem(pSSM, &pThis->MacConfigured, sizeof(pThis->MacConfigured)); pHlp->pfnSSMPutU8(pSSM, pThis->uDevType); pHlp->pfnSSMPutU32(pSSM, pThis->u32LinkSpeed); } /** * @callback_method_impl{FNSSMDEVLIVEEXEC, Pass 0 only.} */ static DECLCALLBACK(int) pcnetR3LiveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uPass) { RT_NOREF(uPass); PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); pcnetR3SaveConfig(pDevIns->pHlpR3, pThis, pSSM); return VINF_SSM_DONT_CALL_AGAIN; } /** * @callback_method_impl{FNSSMDEVSAVEPREP, * Serializes the receive thread, it may be working inside the critsect.} */ static DECLCALLBACK(int) pcnetR3SavePrep(PPDMDEVINS pDevIns, PSSMHANDLE pSSM) { RT_NOREF(pSSM); PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); int rc = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_SEM_BUSY); AssertRCReturn(rc, rc); PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect); return VINF_SUCCESS; } /** * @callback_method_impl{FNSSMDEVSAVEEXEC} */ static DECLCALLBACK(int) pcnetR3SaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM) { PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3; pHlp->pfnSSMPutBool(pSSM, pThis->fLinkUp); pHlp->pfnSSMPutU32(pSSM, pThis->u32RAP); pHlp->pfnSSMPutS32(pSSM, pThis->iISR); pHlp->pfnSSMPutU32(pSSM, pThis->u32Lnkst); pHlp->pfnSSMPutBool(pSSM, false/* was ffPrivIfEnabled */); /* >= If version 0.9 */ pHlp->pfnSSMPutBool(pSSM, pThis->fSignalRxMiss); /* >= If version 0.10 */ pHlp->pfnSSMPutGCPhys32(pSSM, pThis->GCRDRA); pHlp->pfnSSMPutGCPhys32(pSSM, pThis->GCTDRA); pHlp->pfnSSMPutMem(pSSM, pThis->aPROM, sizeof(pThis->aPROM)); pHlp->pfnSSMPutMem(pSSM, pThis->aCSR, sizeof(pThis->aCSR)); pHlp->pfnSSMPutMem(pSSM, pThis->aBCR, sizeof(pThis->aBCR)); pHlp->pfnSSMPutMem(pSSM, pThis->aMII, sizeof(pThis->aMII)); pHlp->pfnSSMPutU16(pSSM, pThis->u16CSR0LastSeenByGuest); pHlp->pfnSSMPutU64(pSSM, pThis->u64LastPoll); pcnetR3SaveConfig(pHlp, pThis, pSSM); int rc = VINF_SUCCESS; #ifndef PCNET_NO_POLLING rc = PDMDevHlpTimerSave(pDevIns, pThis->hTimerPoll, pSSM); if (RT_FAILURE(rc)) return rc; #endif if (pThis->uDevType == DEV_AM79C973) rc = PDMDevHlpTimerSave(pDevIns, pThis->hTimerSoftInt, pSSM); return rc; } /** * @callback_method_impl{FNSSMDEVLOADPREP}, * Serializes the receive thread, it may be working inside the critsect.} */ static DECLCALLBACK(int) pcnetR3LoadPrep(PPDMDEVINS pDevIns, PSSMHANDLE pSSM) { PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3; int rc = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_SEM_BUSY); AssertRCReturn(rc, rc); uint32_t uVer = pHlp->pfnSSMHandleVersion(pSSM); if ( uVer < VBOX_FULL_VERSION_MAKE(4, 3, 6) || ( uVer >= VBOX_FULL_VERSION_MAKE(4, 3, 51) && uVer < VBOX_FULL_VERSION_MAKE(4, 3, 53))) { /* older saved states contain the shared memory region which was never used for ages. */ void *pvSharedMMIOR3; rc = PDMDevHlpMmio2Create(pDevIns, pDevIns->apPciDevs[0], 2, _512K, 0, "PCnetSh", &pvSharedMMIOR3, &pThis->hMmio2Shared); if (RT_FAILURE(rc)) rc = PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS, N_("Failed to allocate the dummy shmem region for the PCnet device")); } PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect); return rc; } /** * @callback_method_impl{FNSSMDEVLOADEXEC} */ static DECLCALLBACK(int) pcnetR3LoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass) { PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); PPCNETSTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PPCNETSTATECC); PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3; if ( SSM_VERSION_MAJOR_CHANGED(uVersion, PCNET_SAVEDSTATE_VERSION) || SSM_VERSION_MINOR(uVersion) < 7) return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION; if (uPass == SSM_PASS_FINAL) { /* restore data */ pHlp->pfnSSMGetBool(pSSM, &pThis->fLinkUp); int rc = pHlp->pfnSSMGetU32(pSSM, &pThis->u32RAP); AssertRCReturn(rc, rc); AssertLogRelMsgReturn(pThis->u32RAP < RT_ELEMENTS(pThis->aCSR), ("%#x\n", pThis->u32RAP), VERR_SSM_LOAD_CONFIG_MISMATCH); pHlp->pfnSSMGetS32(pSSM, &pThis->iISR); pHlp->pfnSSMGetU32(pSSM, &pThis->u32Lnkst); if ( SSM_VERSION_MAJOR(uVersion) > 0 || SSM_VERSION_MINOR(uVersion) >= 9) { bool fPrivIfEnabled = false; pHlp->pfnSSMGetBool(pSSM, &fPrivIfEnabled); if (fPrivIfEnabled) { /* no longer implemented */ LogRel(("PCnet#%d: Cannot enable private interface!\n", PCNET_INST_NR)); return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION; } } if ( SSM_VERSION_MAJOR(uVersion) > 0 || SSM_VERSION_MINOR(uVersion) >= 10) pHlp->pfnSSMGetBool(pSSM, &pThis->fSignalRxMiss); pHlp->pfnSSMGetGCPhys32(pSSM, &pThis->GCRDRA); pHlp->pfnSSMGetGCPhys32(pSSM, &pThis->GCTDRA); pHlp->pfnSSMGetMem(pSSM, &pThis->aPROM, sizeof(pThis->aPROM)); pHlp->pfnSSMGetMem(pSSM, &pThis->aCSR, sizeof(pThis->aCSR)); pHlp->pfnSSMGetMem(pSSM, &pThis->aBCR, sizeof(pThis->aBCR)); pHlp->pfnSSMGetMem(pSSM, &pThis->aMII, sizeof(pThis->aMII)); pHlp->pfnSSMGetU16(pSSM, &pThis->u16CSR0LastSeenByGuest); pHlp->pfnSSMGetU64(pSSM, &pThis->u64LastPoll); } /* check config */ RTMAC Mac; int rc = pHlp->pfnSSMGetMem(pSSM, &Mac, sizeof(Mac)); AssertRCReturn(rc, rc); if ( memcmp(&Mac, &pThis->MacConfigured, sizeof(Mac)) && (uPass == 0 || !PDMDevHlpVMTeleportedAndNotFullyResumedYet(pDevIns)) ) LogRel(("PCnet#%u: The mac address differs: config=%RTmac saved=%RTmac\n", PCNET_INST_NR, &pThis->MacConfigured, &Mac)); uint8_t uDevType; rc = pHlp->pfnSSMGetU8(pSSM, &uDevType); AssertRCReturn(rc, rc); if (pThis->uDevType != uDevType) return pHlp->pfnSSMSetCfgError(pSSM, RT_SRC_POS, N_("The uDevType setting differs: config=%u saved=%u"), pThis->uDevType, uDevType); uint32_t u32LinkSpeed; rc = pHlp->pfnSSMGetU32(pSSM, &u32LinkSpeed); AssertRCReturn(rc, rc); if ( pThis->u32LinkSpeed != u32LinkSpeed && (uPass == 0 || !PDMDevHlpVMTeleportedAndNotFullyResumedYet(pDevIns)) ) LogRel(("PCnet#%u: The mac link speed differs: config=%u saved=%u\n", PCNET_INST_NR, pThis->u32LinkSpeed, u32LinkSpeed)); if (uPass == SSM_PASS_FINAL) { /* restore timers and stuff */ #ifndef PCNET_NO_POLLING PDMDevHlpTimerLoad(pDevIns, pThis->hTimerPoll, pSSM); #endif if (pThis->uDevType == DEV_AM79C973) { if ( SSM_VERSION_MAJOR(uVersion) > 0 || SSM_VERSION_MINOR(uVersion) >= 8) PDMDevHlpTimerLoad(pDevIns, pThis->hTimerSoftInt, pSSM); } pThis->iLog2DescSize = BCR_SWSTYLE(pThis) ? 4 : 3; pThis->GCUpperPhys = BCR_SSIZE32(pThis) ? 0 : (0xff00 & (uint32_t)pThis->aCSR[2]) << 16; /* update promiscuous mode. */ if (pThisCC->pDrv) pThisCC->pDrv->pfnSetPromiscuousMode(pThisCC->pDrv, CSR_PROM(pThis)); #ifdef PCNET_NO_POLLING /* Enable physical monitoring again (!) */ pcnetR3UpdateRingHandlers(pThis); #endif /* Indicate link down to the guest OS that all network connections have been lost, unless we've been teleported here. */ if (!PDMDevHlpVMTeleportedAndNotFullyResumedYet(pDevIns)) pcnetR3TempLinkDown(pDevIns, pThis); } return VINF_SUCCESS; } /** * @callback_method_impl{FNSSMDEVLOADDONE} */ static DECLCALLBACK(int) pcnetR3LoadDone(PPDMDEVINS pDevIns, PSSMHANDLE pSSM) { RT_NOREF(pSSM); PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); int rc = VINF_SUCCESS; if (pThis->hMmio2Shared != NIL_PGMMMIO2HANDLE) { /* drop this dummy region */ rc = pDevIns->pHlpR3->pfnMmio2Destroy(pDevIns, pThis->hMmio2Shared); AssertLogRelRC(rc); pThis->hMmio2Shared = NIL_PGMMMIO2HANDLE; } return rc; } /* -=-=-=-=-=- PCNETSTATE::INetworkDown -=-=-=-=-=- */ /** * Check if the device/driver can receive data now. * * Worker for pcnetR3NetworkDown_WaitReceiveAvail(). This must be called before * the pfnRecieve() method is called. * * @returns VBox status code. * @param pDevIns The device instance. * @param pThis The PCnet shared instance data. */ static int pcnetR3CanReceive(PPDMDEVINS pDevIns, PPCNETSTATE pThis) { int rc = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_SEM_BUSY); PDM_CRITSECT_RELEASE_ASSERT_RC_DEV(pDevIns, &pThis->CritSect, rc); rc = VERR_NET_NO_BUFFER_SPACE; if (RT_LIKELY(!CSR_DRX(pThis) && !CSR_STOP(pThis) && !CSR_SPND(pThis))) { if (HOST_IS_OWNER(CSR_CRST(pThis)) && pThis->GCRDRA) pcnetRdtePoll(pDevIns, pThis); if (RT_UNLIKELY(HOST_IS_OWNER(CSR_CRST(pThis)))) { /** @todo Notify the guest _now_. Will potentially increase the interrupt load */ if (pThis->fSignalRxMiss) pThis->aCSR[0] |= 0x1000; /* Set MISS flag */ } else rc = VINF_SUCCESS; } PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect); return rc; } /** * @interface_method_impl{PDMINETWORKDOWN,pfnWaitReceiveAvail} */ static DECLCALLBACK(int) pcnetR3NetworkDown_WaitReceiveAvail(PPDMINETWORKDOWN pInterface, RTMSINTERVAL cMillies) { PPCNETSTATECC pThisCC = RT_FROM_MEMBER(pInterface, PCNETSTATECC, INetworkDown); PPDMDEVINS pDevIns = pThisCC->pDevIns; PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); int rc = pcnetR3CanReceive(pDevIns, pThis); if (RT_SUCCESS(rc)) return VINF_SUCCESS; if (RT_UNLIKELY(cMillies == 0)) return VERR_NET_NO_BUFFER_SPACE; rc = VERR_INTERRUPTED; ASMAtomicXchgBool(&pThis->fMaybeOutOfSpace, true); STAM_PROFILE_START(&pThis->StatRxOverflow, a); VMSTATE enmVMState; while (RT_LIKELY( (enmVMState = PDMDevHlpVMState(pDevIns)) == VMSTATE_RUNNING || enmVMState == VMSTATE_RUNNING_LS)) { int rc2 = pcnetR3CanReceive(pDevIns, pThis); if (RT_SUCCESS(rc2)) { rc = VINF_SUCCESS; break; } LogFlow(("pcnetR3NetworkDown_WaitReceiveAvail: waiting cMillies=%u...\n", cMillies)); /* Start the poll timer once which will remain active as long fMaybeOutOfSpace * is true -- even if (transmit) polling is disabled (CSR_DPOLL). */ rc2 = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_SEM_BUSY); PDM_CRITSECT_RELEASE_ASSERT_RC_DEV(pDevIns, &pThis->CritSect, rc2); #ifndef PCNET_NO_POLLING pcnetPollTimerStart(pDevIns, pThis); #endif PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect); PDMDevHlpSUPSemEventWaitNoResume(pDevIns, pThis->hEventOutOfRxSpace, cMillies); } STAM_PROFILE_STOP(&pThis->StatRxOverflow, a); ASMAtomicXchgBool(&pThis->fMaybeOutOfSpace, false); return rc; } /** * @interface_method_impl{PDMINETWORKDOWN,pfnReceive} */ static DECLCALLBACK(int) pcnetR3NetworkDown_Receive(PPDMINETWORKDOWN pInterface, const void *pvBuf, size_t cb) { PPCNETSTATECC pThisCC = RT_FROM_MEMBER(pInterface, PCNETSTATECC, INetworkDown); PPDMDEVINS pDevIns = pThisCC->pDevIns; PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); STAM_PROFILE_ADV_START(&pThis->StatReceive, a); int rc = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_SEM_BUSY); PDM_CRITSECT_RELEASE_ASSERT_RC_DEV(pDevIns, &pThis->CritSect, rc); /* * Check for the max ethernet frame size, taking the IEEE 802.1Q (VLAN) tag into * account. Note that the CRC Checksum is optional. * Ethernet frames consist of a 14-byte header [+ 4-byte vlan tag] + a 1500-byte body [+ 4-byte CRC]. */ if (RT_LIKELY( cb <= 1518 || ( cb <= 1522 && ((PCRTNETETHERHDR)pvBuf)->EtherType == RT_H2BE_U16_C(RTNET_ETHERTYPE_VLAN)))) { bool fAddFCS = cb <= 1514 || ( cb <= 1518 && ((PCRTNETETHERHDR)pvBuf)->EtherType == RT_H2BE_U16_C(RTNET_ETHERTYPE_VLAN)); if (cb > 70) /* unqualified guess */ pThis->Led.Asserted.s.fReading = pThis->Led.Actual.s.fReading = 1; pcnetReceiveNoSync(pDevIns, pThis, pThisCC, (const uint8_t *)pvBuf, cb, fAddFCS, false); pThis->Led.Actual.s.fReading = 0; } #ifdef LOG_ENABLED else { static bool s_fFirstBigFrameLoss = true; unsigned cbMaxFrame = ((PCRTNETETHERHDR)pvBuf)->EtherType == RT_H2BE_U16_C(RTNET_ETHERTYPE_VLAN) ? 1522 : 1518; if (s_fFirstBigFrameLoss) { s_fFirstBigFrameLoss = false; Log(("PCnet#%d: Received giant frame %zu, max %u. (Further giants will be reported at level5.)\n", PCNET_INST_NR, cb, cbMaxFrame)); } else Log5(("PCnet#%d: Received giant frame %zu bytes, max %u.\n", PCNET_INST_NR, cb, cbMaxFrame)); } #endif /* LOG_ENABLED */ PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect); STAM_PROFILE_ADV_STOP(&pThis->StatReceive, a); return VINF_SUCCESS; } /** * @interface_method_impl{PDMINETWORKDOWN,pfnXmitPending} */ static DECLCALLBACK(void) pcnetR3NetworkDown_XmitPending(PPDMINETWORKDOWN pInterface) { PPCNETSTATECC pThisCC = RT_FROM_MEMBER(pInterface, PCNETSTATECC, INetworkDown); PPDMDEVINS pDevIns = pThisCC->pDevIns; PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); pcnetXmitPending(pDevIns, pThis, pThisCC, true /*fOnWorkerThread*/); } /* -=-=-=-=-=- PCNETSTATE::INetworkConfig -=-=-=-=-=- */ /** * @interface_method_impl{PDMINETWORKCONFIG,pfnGetMac} */ static DECLCALLBACK(int) pcnetR3NetworkConfig_GetMac(PPDMINETWORKCONFIG pInterface, PRTMAC pMac) { PPCNETSTATECC pThisCC = RT_FROM_MEMBER(pInterface, PCNETSTATECC, INetworkConfig); PPDMDEVINS pDevIns = pThisCC->pDevIns; PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); memcpy(pMac, pThis->aPROM, sizeof(*pMac)); return VINF_SUCCESS; } /** * @interface_method_impl{PDMINETWORKCONFIG,pfnGetLinkState} */ static DECLCALLBACK(PDMNETWORKLINKSTATE) pcnetR3NetworkConfig_GetLinkState(PPDMINETWORKCONFIG pInterface) { PPCNETSTATECC pThisCC = RT_FROM_MEMBER(pInterface, PCNETSTATECC, INetworkConfig); PPDMDEVINS pDevIns = pThisCC->pDevIns; PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); if (pThis->fLinkUp && !pThis->fLinkTempDown) return PDMNETWORKLINKSTATE_UP; if (!pThis->fLinkUp) return PDMNETWORKLINKSTATE_DOWN; if (pThis->fLinkTempDown) return PDMNETWORKLINKSTATE_DOWN_RESUME; AssertMsgFailed(("Invalid link state!\n")); return PDMNETWORKLINKSTATE_INVALID; } /** * @interface_method_impl{PDMINETWORKCONFIG,pfnSetLinkState} */ static DECLCALLBACK(int) pcnetR3NetworkConfig_SetLinkState(PPDMINETWORKCONFIG pInterface, PDMNETWORKLINKSTATE enmState) { PPCNETSTATECC pThisCC = RT_FROM_MEMBER(pInterface, PCNETSTATECC, INetworkConfig); PPDMDEVINS pDevIns = pThisCC->pDevIns; PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); bool fLinkUp; AssertMsgReturn(enmState > PDMNETWORKLINKSTATE_INVALID && enmState <= PDMNETWORKLINKSTATE_DOWN_RESUME, ("Invalid link state: enmState=%d\n", enmState), VERR_INVALID_PARAMETER); if (enmState == PDMNETWORKLINKSTATE_DOWN_RESUME) { pcnetR3TempLinkDown(pDevIns, pThis); /* * Note that we do not notify the driver about the link state change because * the change is only temporary and can be disregarded from the driver's * point of view (see @bugref{7057}). */ return VINF_SUCCESS; } /* has the state changed? */ fLinkUp = enmState == PDMNETWORKLINKSTATE_UP; if (pThis->fLinkUp != fLinkUp) { pThis->fLinkUp = fLinkUp; if (fLinkUp) { /* Connect with a configured delay. */ pThis->fLinkTempDown = true; pThis->cLinkDownReported = 0; pThis->aCSR[0] |= RT_BIT(15) | RT_BIT(13); /* ERR | CERR (this is probably wrong) */ pThis->Led.Asserted.s.fError = pThis->Led.Actual.s.fError = 1; int rc = PDMDevHlpTimerSetMillies(pDevIns, pThis->hTimerRestore, pThis->cMsLinkUpDelay); AssertRC(rc); } else { /* disconnect */ pThis->cLinkDownReported = 0; pThis->aCSR[0] |= RT_BIT(15) | RT_BIT(13); /* ERR | CERR (this is probably wrong) */ pThis->Led.Asserted.s.fError = pThis->Led.Actual.s.fError = 1; } Assert(!PDMDevHlpCritSectIsOwner(pDevIns, &pThis->CritSect)); if (pThisCC->pDrv) pThisCC->pDrv->pfnNotifyLinkChanged(pThisCC->pDrv, enmState); } return VINF_SUCCESS; } /* -=-=-=-=-=- PCNETSTATE::ILeds (LUN#0) -=-=-=-=-=- */ /** * @interface_method_impl{PDMILEDPORTS,pfnQueryStatusLed} */ static DECLCALLBACK(int) pcnetQueryStatusLed(PPDMILEDPORTS pInterface, unsigned iLUN, PPDMLED *ppLed) { PPCNETSTATECC pThisCC = RT_FROM_MEMBER(pInterface, PCNETSTATECC, ILeds); PPDMDEVINS pDevIns = pThisCC->pDevIns; PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); if (iLUN == 0) { *ppLed = &pThis->Led; return VINF_SUCCESS; } return VERR_PDM_LUN_NOT_FOUND; } /* -=-=-=-=-=- PCNETSTATE::IBase (LUN#0) -=-=-=-=-=- */ /** * @interface_method_impl{PDMIBASE,pfnQueryInterface} */ static DECLCALLBACK(void *) pcnetQueryInterface(struct PDMIBASE *pInterface, const char *pszIID) { PPCNETSTATECC pThisCC = RT_FROM_MEMBER(pInterface, PCNETSTATECC, IBase); Assert(&pThisCC->IBase == pInterface); PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pThisCC->IBase); PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKDOWN, &pThisCC->INetworkDown); PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKCONFIG, &pThisCC->INetworkConfig); PDMIBASE_RETURN_INTERFACE(pszIID, PDMILEDPORTS, &pThisCC->ILeds); return NULL; } /* -=-=-=-=-=- PDMDEVREG -=-=-=-=-=- */ /** * @interface_method_impl{PDMDEVREG,pfnPowerOff} */ static DECLCALLBACK(void) pcnetR3PowerOff(PPDMDEVINS pDevIns) { /* Poke thread waiting for buffer space. */ pcnetWakeupReceive(pDevIns); } /** * @interface_method_impl{PDMDEVREG,pfnDetach} * * One port on the network card has been disconnected from the network. */ static DECLCALLBACK(void) pcnetR3Detach(PPDMDEVINS pDevIns, unsigned iLUN, uint32_t fFlags) { PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); PPCNETSTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PPCNETSTATECC); Log(("#%d pcnetR3Detach:\n", PCNET_INST_NR)); RT_NOREF(fFlags); AssertLogRelReturnVoid(iLUN == 0); int const rcLock = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_SEM_BUSY); PDM_CRITSECT_RELEASE_ASSERT_RC_DEV(pDevIns, &pThis->CritSect, rcLock); /** @todo r=pritesh still need to check if i missed * to clean something in this function */ /* * Zero some important members. */ pThis->fDriverAttached = false; pThisCC->pDrvBase = NULL; pThisCC->pDrv = NULL; /// @todo figure this out //pThis->pDrvR0 = NIL_RTR0PTR; //pThis->pDrvRC = NIL_RTRCPTR; PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect); } /** * @interface_method_impl{PDMDEVREG,pfnAttach} * One port on the network card has been connected to a network. */ static DECLCALLBACK(int) pcnetR3Attach(PPDMDEVINS pDevIns, unsigned iLUN, uint32_t fFlags) { PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); PPCNETSTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PPCNETSTATECC); LogFlow(("#%d pcnetR3Attach:\n", PCNET_INST_NR)); RT_NOREF(fFlags); AssertLogRelReturn(iLUN == 0, VERR_PDM_NO_SUCH_LUN); int const rcLock = PDMDevHlpCritSectEnter(pDevIns, &pThis->CritSect, VERR_SEM_BUSY); PDM_CRITSECT_RELEASE_ASSERT_RC_DEV(pDevIns, &pThis->CritSect, rcLock); /* * Attach the driver. */ int rc = PDMDevHlpDriverAttach(pDevIns, 0, &pThisCC->IBase, &pThisCC->pDrvBase, "Network Port"); if (RT_SUCCESS(rc)) { pThisCC->pDrv = PDMIBASE_QUERY_INTERFACE(pThisCC->pDrvBase, PDMINETWORKUP); AssertMsgStmt(pThisCC->pDrv, ("Failed to obtain the PDMINETWORKUP interface!\n"), rc = VERR_PDM_MISSING_INTERFACE_BELOW); pThis->fDriverAttached = true; /// @todo figoure out this //pThis->pDrvR0 = PDMIBASER0_QUERY_INTERFACE(PDMIBASE_QUERY_INTERFACE(pThis->pDrvBase, PDMIBASER0), PDMINETWORKUP); //pThis->pDrvRC = PDMIBASERC_QUERY_INTERFACE(PDMIBASE_QUERY_INTERFACE(pThis->pDrvBase, PDMIBASERC), PDMINETWORKUP); } else if ( rc == VERR_PDM_NO_ATTACHED_DRIVER || rc == VERR_PDM_CFG_MISSING_DRIVER_NAME) { /* This should never happen because this function is not called * if there is no driver to attach! */ Log(("#%d No attached driver!\n", PCNET_INST_NR)); } /* * Temporary set the link down if it was up so that the guest * will know that we have change the configuration of the * network card */ if (RT_SUCCESS(rc)) pcnetR3TempLinkDown(pDevIns, pThis); PDMDevHlpCritSectLeave(pDevIns, &pThis->CritSect); return rc; } /** * @interface_method_impl{PDMDEVREG,pfnSuspend} */ static DECLCALLBACK(void) pcnetR3Suspend(PPDMDEVINS pDevIns) { /* Poke thread waiting for buffer space. */ pcnetWakeupReceive(pDevIns); } /** * @interface_method_impl{PDMDEVREG,pfnReset} */ static DECLCALLBACK(void) pcnetR3Reset(PPDMDEVINS pDevIns) { PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); if (pThis->fLinkTempDown) { pThis->cLinkDownReported = 0x10000; PDMDevHlpTimerStop(pDevIns, pThis->hTimerRestore); pcnetR3TimerRestore(pDevIns, pThis->hTimerRestore, pThis); } /** @todo How to flush the queues? */ pcnetR3HardReset(pDevIns, pThis); } /** * @interface_method_impl{PDMDEVREG,pfnRelocate} */ static DECLCALLBACK(void) pcnetR3Relocate(PPDMDEVINS pDevIns, RTGCINTPTR offDelta) { PPCNETSTATERC pThisRC = PDMINS_2_DATA_RC(pDevIns, PPCNETSTATERC); pThisRC->pDrv += offDelta; #ifdef PCNET_NO_POLLING pThisRC->pfnEMInterpretInstructionRC += offDelta; #endif } /** * @interface_method_impl{PDMDEVREG,pfnDestruct} */ static DECLCALLBACK(int) pcnetR3Destruct(PPDMDEVINS pDevIns) { PDMDEV_CHECK_VERSIONS_RETURN_QUIET(pDevIns); PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); if (pThis->hEventOutOfRxSpace == NIL_SUPSEMEVENT) { PDMDevHlpSUPSemEventSignal(pDevIns, pThis->hEventOutOfRxSpace); PDMDevHlpSUPSemEventClose(pDevIns, pThis->hEventOutOfRxSpace); pThis->hEventOutOfRxSpace = NIL_SUPSEMEVENT; } if (PDMDevHlpCritSectIsInitialized(pDevIns, &pThis->CritSect)) PDMDevHlpCritSectDelete(pDevIns, &pThis->CritSect); return VINF_SUCCESS; } /** * @interface_method_impl{PDMDEVREG,pfnConstruct} */ static DECLCALLBACK(int) pcnetR3Construct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg) { PDMDEV_CHECK_VERSIONS_RETURN(pDevIns); PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); PPCNETSTATECC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PPCNETSTATECC); PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3; PPDMIBASE pBase; char szTmp[128]; int rc; Assert(RT_ELEMENTS(pThis->aBCR) == BCR_MAX_RAP); Assert(RT_ELEMENTS(pThis->aMII) == MII_MAX_REG); Assert(sizeof(pThis->abLoopBuf) == RT_ALIGN_Z(sizeof(pThis->abLoopBuf), 16)); /* * Init what's required to make the destructor safe. */ pThis->iInstance = iInstance; pThis->hEventOutOfRxSpace = NIL_SUPSEMEVENT; pThis->hIoPortsPci = NIL_IOMIOPORTHANDLE; pThis->hIoPortsPciAProm = NIL_IOMIOPORTHANDLE; pThis->hIoPortsIsa = NIL_IOMIOPORTHANDLE; pThis->hIoPortsIsaAProm = NIL_IOMIOPORTHANDLE; pThis->hMmio2Shared = NIL_PGMMMIO2HANDLE; pThisCC->pDevIns = pDevIns; /* * Validate configuration. */ PDMDEV_VALIDATE_CONFIG_RETURN(pDevIns, "MAC|CableConnected|Am79C973|ChipType|Port|IRQ|LineSpeed|PrivIfEnabled|LinkUpDelay|StatNo", ""); /* * Read the configuration. */ rc = pHlp->pfnCFGMQueryBytes(pCfg, "MAC", &pThis->MacConfigured, sizeof(pThis->MacConfigured)); if (RT_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to get the \"MAC\" value")); rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "CableConnected", &pThis->fLinkUp, true); if (RT_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to get the \"CableConnected\" value")); /* * Determine the model. */ char szChipType[16]; rc = pHlp->pfnCFGMQueryStringDef(pCfg, "ChipType", &szChipType[0], sizeof(szChipType), "Am79C970A"); if (RT_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Querying \"ChipType\" as string failed")); if (!strcmp(szChipType, "Am79C970A")) pThis->uDevType = DEV_AM79C970A; /* 10 Mbps PCnet-PCI II. */ else if (!strcmp(szChipType, "Am79C973")) pThis->uDevType = DEV_AM79C973; /* 10/100 Mbps PCnet-FAST III. */ else if (!strcmp(szChipType, "Am79C960")) pThis->uDevType = DEV_AM79C960; /* 10 Mbps PCnet-ISA, NE2100/Am2100 compatible. */ else if (!strcmp(szChipType, "Am79C960_EB")) { pThis->uDevType = DEV_AM79C960_EB; /* 10 Mbps PCnet-ISA, Racal InterLink NI6510 EtherBlaster compatible. */ /* NI6510 drivers (at least Racal's and Linux) require the OUI to be InterLan's (Racal-Datacom). * Refuse loading if OUI doesn't match, because otherwise drivers won't load in the guest. */ if (memcmp(&pThis->MacConfigured, "\x02\x07\x01", 3)) return PDMDevHlpVMSetError(pDevIns, VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES, RT_SRC_POS, N_("Configuration error: MAC address OUI for EtherBlaster must be 02 07 01")); } else return PDMDevHlpVMSetError(pDevIns, VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES, RT_SRC_POS, N_("Configuration error: The \"ChipType\" value \"%s\" is unsupported"), szChipType); /* * Process the old model configuration. If present, it must take precedence for saved state compatibility. */ bool fAm79C973; rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "Am79C973", &fAm79C973, false); if (RT_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to get the \"Am79C973\" value")); if (fAm79C973) pThis->uDevType = DEV_AM79C973; /* * Process ISA configuration options. The defaults are chosen to be NE2100/Am2100 compatible. */ rc = pHlp->pfnCFGMQueryPortDef(pCfg, "Port", &pThis->IOPortBase, 0x300); if (RT_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to get the \"Port\" value")); rc = pHlp->pfnCFGMQueryU8Def(pCfg, "IRQ", &pThis->uIsaIrq, 3); if (RT_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to get the \"IRQ\" value")); rc = pHlp->pfnCFGMQueryU32Def(pCfg, "LineSpeed", &pThis->u32LinkSpeed, 1000000); /* 1GBit/s (in kbps units)*/ if (RT_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to get the \"LineSpeed\" value")); rc = pHlp->pfnCFGMQueryU32Def(pCfg, "LinkUpDelay", (uint32_t*)&pThis->cMsLinkUpDelay, 5000); /* ms */ if (RT_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to get the value of 'LinkUpDelay'")); Assert(pThis->cMsLinkUpDelay <= 300000); /* less than 5 minutes */ if (pThis->cMsLinkUpDelay > 5000 || pThis->cMsLinkUpDelay < 100) LogRel(("PCnet#%d WARNING! Link up delay is set to %u seconds!\n", iInstance, pThis->cMsLinkUpDelay / 1000)); Log(("#%d Link up delay is set to %u seconds\n", iInstance, pThis->cMsLinkUpDelay / 1000)); uint32_t uStatNo = iInstance; rc = pHlp->pfnCFGMQueryU32Def(pCfg, "StatNo", &uStatNo, iInstance); if (RT_FAILURE(rc)) return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to get the \"StatNo\" value")); /* * Initialize data (most of it anyway). */ pThis->Led.u32Magic = PDMLED_MAGIC; /* IBase */ pThisCC->IBase.pfnQueryInterface = pcnetQueryInterface; /* INeworkPort */ pThisCC->INetworkDown.pfnWaitReceiveAvail = pcnetR3NetworkDown_WaitReceiveAvail; pThisCC->INetworkDown.pfnReceive = pcnetR3NetworkDown_Receive; pThisCC->INetworkDown.pfnXmitPending = pcnetR3NetworkDown_XmitPending; /* INetworkConfig */ pThisCC->INetworkConfig.pfnGetMac = pcnetR3NetworkConfig_GetMac; pThisCC->INetworkConfig.pfnGetLinkState = pcnetR3NetworkConfig_GetLinkState; pThisCC->INetworkConfig.pfnSetLinkState = pcnetR3NetworkConfig_SetLinkState; /* ILeds */ pThisCC->ILeds.pfnQueryStatusLed = pcnetQueryStatusLed; /* PCI Device */ PPDMPCIDEV pPciDev = pDevIns->apPciDevs[0]; PDMPCIDEV_ASSERT_VALID(pDevIns, pPciDev); PDMPciDevSetVendorId(pPciDev, 0x1022); PDMPciDevSetDeviceId(pPciDev, 0x2000); PDMPciDevSetByte(pPciDev, 0x04, 0x07); /* command */ PDMPciDevSetByte(pPciDev, 0x05, 0x00); PDMPciDevSetByte(pPciDev, 0x06, 0x80); /* status */ PDMPciDevSetByte(pPciDev, 0x07, 0x02); PDMPciDevSetByte(pPciDev, 0x08, pThis->uDevType == DEV_AM79C973 ? 0x40 : 0x10); /* revision */ PDMPciDevSetByte(pPciDev, 0x09, 0x00); PDMPciDevSetByte(pPciDev, 0x0a, 0x00); /* ethernet network controller */ PDMPciDevSetByte(pPciDev, 0x0b, 0x02); PDMPciDevSetByte(pPciDev, 0x0e, 0x00); /* header_type */ PDMPciDevSetByte(pPciDev, 0x10, 0x01); /* IO Base */ PDMPciDevSetByte(pPciDev, 0x11, 0x00); PDMPciDevSetByte(pPciDev, 0x12, 0x00); PDMPciDevSetByte(pPciDev, 0x13, 0x00); PDMPciDevSetByte(pPciDev, 0x14, 0x00); /* MMIO Base */ PDMPciDevSetByte(pPciDev, 0x15, 0x00); PDMPciDevSetByte(pPciDev, 0x16, 0x00); PDMPciDevSetByte(pPciDev, 0x17, 0x00); /* subsystem and subvendor IDs */ PDMPciDevSetByte(pPciDev, 0x2c, 0x22); /* subsystem vendor id */ PDMPciDevSetByte(pPciDev, 0x2d, 0x10); PDMPciDevSetByte(pPciDev, 0x2e, 0x00); /* subsystem id */ PDMPciDevSetByte(pPciDev, 0x2f, 0x20); PDMPciDevSetByte(pPciDev, 0x3d, 1); /* interrupt pin 0 */ PDMPciDevSetByte(pPciDev, 0x3e, 0x06); PDMPciDevSetByte(pPciDev, 0x3f, 0xff); /* * We use our own critical section (historical reasons). */ rc = PDMDevHlpCritSectInit(pDevIns, &pThis->CritSect, RT_SRC_POS, "PCnet#%u", iInstance); AssertRCReturn(rc, rc); rc = PDMDevHlpSetDeviceCritSect(pDevIns, &pThis->CritSect); AssertRCReturn(rc, rc); /* * Register the PCI device, its I/O regions, the timer and the saved state item. */ Assert(PCNET_IS_PCI(pThis) != PCNET_IS_ISA(pThis)); /* IOPortBase is shared, so it's either one or the other! */ if (PCNET_IS_PCI(pThis)) { rc = PDMDevHlpPCIRegister(pDevIns, pPciDev); AssertRCReturn(rc, rc); /* Region #0: I/O ports - two handlers: */ rc = PDMDevHlpIoPortCreate(pDevIns, 0x10 /*cPorts*/, pPciDev, 0 /*iPciRegion*/, pcnetIoPortAPromWrite, pcnetIOPortAPromRead, NULL /*pvUser*/, "PCnet APROM", NULL /*paExtDescs*/, &pThis->hIoPortsPciAProm); AssertRCReturn(rc, rc); rc = PDMDevHlpIoPortCreate(pDevIns, 0x10 /*cPorts*/, pPciDev, 0 /*iPciRegion*/, pcnetIoPortWrite, pcnetIoPortRead, NULL /*pvUser*/, "PCnet", NULL /*paExtDescs*/, &pThis->hIoPortsPci); AssertRCReturn(rc, rc); rc = PDMDevHlpPCIIORegionRegisterIoCustom(pDevIns, 0, PCNET_IOPORT_SIZE, pcnetR3PciMapUnmapIoPorts); AssertRCReturn(rc, rc); /* Region #1: MMIO */ rc = PDMDevHlpPCIIORegionCreateMmio(pDevIns, 1 /*iPciRegion*/, PCNET_PNPMMIO_SIZE, PCI_ADDRESS_SPACE_MEM, pcnetR3MmioWrite, pcnetR3MmioRead, NULL /*pvUser*/, IOMMMIO_FLAGS_READ_PASSTHRU | IOMMMIO_FLAGS_WRITE_PASSTHRU, "PCnet", &pThis->hMmioPci); AssertRCReturn(rc, rc); } /* * Register ISA I/O ranges for PCnet-ISA. */ if (PCNET_IS_ISA(pThis)) { rc = PDMDevHlpIoPortCreateAndMap(pDevIns, pThis->IOPortBase, 0x10 /*cPorts*/, pcnetIoPortAPromWrite, pcnetIOPortAPromRead, "PCnet APROM", NULL /*paExtDesc*/, &pThis->hIoPortsIsaAProm); AssertRCReturn(rc, rc); rc = PDMDevHlpIoPortCreateAndMap(pDevIns, pThis->IOPortBase + 0x10, 0x10 /*cPorts*/, pcnetIoPortWrite, pcnetIoPortRead, "PCnet", NULL /*paExtDesc*/, &pThis->hIoPortsIsa); AssertRCReturn(rc, rc); } #ifdef PCNET_NO_POLLING /* * Resolve the R0 and RC handlers. */ rc = PDMR3LdrGetSymbolR0Lazy(PDMDevHlpGetVM(pDevIns), NULL, NULL, "EMInterpretInstruction", &pThis->pfnEMInterpretInstructionR0); if (RT_SUCCESS(rc)) rc = PDMR3LdrGetSymbolRCLazy(PDMDevHlpGetVM(pDevIns), NULL, NULL, "EMInterpretInstruction", &pThis->pfnEMInterpretInstructionRC); AssertLogRelMsgRCReturn(rc, ("PDMR3LdrGetSymbolRCLazy(EMInterpretInstruction) -> %Rrc\n", rc), rc); rc = PGMR3HandlerPhysicalTypeRegister(PDMDevHlpGetVM(pDevIns), PGMPHYSHANDLERKIND_WRITE, pcnetHandleRingWrite, g_DevicePCNet.szR0Mod, NULL, "pcnetHandleRingWritePf", g_DevicePCNet.szRCMod, NULL, "pcnetHandleRingWritePf", "PCnet ring write access handler", &pThis->hNoPollingHandlerType); AssertRCReturn(rc, rc); #else rc = PDMDevHlpTimerCreate(pDevIns, TMCLOCK_VIRTUAL, pcnetR3Timer, NULL, TMTIMER_FLAGS_NO_CRIT_SECT | TMTIMER_FLAGS_RING0, "PCnet Poll", &pThis->hTimerPoll); AssertRCReturn(rc, rc); rc = PDMDevHlpTimerSetCritSect(pDevIns, pThis->hTimerPoll, &pThis->CritSect); AssertRCReturn(rc, rc); #endif if (pThis->uDevType == DEV_AM79C973) { /* Software Interrupt timer */ rc = PDMDevHlpTimerCreate(pDevIns, TMCLOCK_VIRTUAL, pcnetR3TimerSoftInt, NULL, TMTIMER_FLAGS_NO_CRIT_SECT | TMTIMER_FLAGS_RING0, "PCnet SoftInt", &pThis->hTimerSoftInt); AssertRCReturn(rc, rc); rc = PDMDevHlpTimerSetCritSect(pDevIns, pThis->hTimerSoftInt, &pThis->CritSect); AssertRCReturn(rc, rc); } rc = PDMDevHlpTimerCreate(pDevIns, TMCLOCK_VIRTUAL, pcnetR3TimerRestore, pThis, TMTIMER_FLAGS_NO_CRIT_SECT | TMTIMER_FLAGS_NO_RING0, "PCnet Restore", &pThis->hTimerRestore); AssertRCReturn(rc, rc); rc = PDMDevHlpSSMRegisterEx(pDevIns, PCNET_SAVEDSTATE_VERSION, sizeof(*pThis), NULL, NULL, pcnetR3LiveExec, NULL, pcnetR3SavePrep, pcnetR3SaveExec, NULL, pcnetR3LoadPrep, pcnetR3LoadExec, pcnetR3LoadDone); AssertRCReturn(rc, rc); /* * Create the transmit queue. */ rc = PDMDevHlpTaskCreate(pDevIns, PDMTASK_F_RZ, "PCnet-Xmit", pcnetR3XmitTaskCallback, NULL /*pvUser*/, &pThis->hXmitTask); AssertRCReturn(rc, rc); /* * Create the RX notifier semaphore. */ rc = PDMDevHlpSUPSemEventCreate(pDevIns, &pThis->hEventOutOfRxSpace); AssertRCReturn(rc, rc); /* * Attach status driver (optional). */ rc = PDMDevHlpDriverAttach(pDevIns, PDM_STATUS_LUN, &pThisCC->IBase, &pBase, "Status Port"); if (RT_SUCCESS(rc)) pThisCC->pLedsConnector = PDMIBASE_QUERY_INTERFACE(pBase, PDMILEDCONNECTORS); else AssertMsgReturn( rc == VERR_PDM_NO_ATTACHED_DRIVER || rc == VERR_PDM_CFG_MISSING_DRIVER_NAME, ("Failed to attach to status driver. rc=%Rrc\n", rc), rc); /* * Attach driver. */ rc = PDMDevHlpDriverAttach(pDevIns, 0, &pThisCC->IBase, &pThisCC->pDrvBase, "Network Port"); if (RT_SUCCESS(rc)) { pThisCC->pDrv = PDMIBASE_QUERY_INTERFACE(pThisCC->pDrvBase, PDMINETWORKUP); AssertMsgReturn(pThisCC->pDrv, ("Failed to obtain the PDMINETWORKUP interface!\n"), VERR_PDM_MISSING_INTERFACE_BELOW); pThis->fDriverAttached = true; /// @todo figure out this! //pThis->pDrvR0 = PDMIBASER0_QUERY_INTERFACE(PDMIBASE_QUERY_INTERFACE(pThis->pDrvBase, PDMIBASER0), PDMINETWORKUP); //pThis->pDrvRC = PDMIBASERC_QUERY_INTERFACE(PDMIBASE_QUERY_INTERFACE(pThis->pDrvBase, PDMIBASERC), PDMINETWORKUP); } else if ( rc == VERR_PDM_NO_ATTACHED_DRIVER || rc == VERR_PDM_CFG_MISSING_DRIVER_NAME) { /* No error! */ Log(("No attached driver!\n")); } else return rc; /* * Reset the device state. (Do after attaching.) */ pcnetR3HardReset(pDevIns, pThis); /* * Register the info item. */ RTStrPrintf(szTmp, sizeof(szTmp), "pcnet%d", pDevIns->iInstance); PDMDevHlpDBGFInfoRegister(pDevIns, szTmp, "PCNET info.", pcnetR3Info); /* * Register statistics. * The /Public/ bits are official and used by session info in the GUI. */ PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatReceiveBytes, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES, "Amount of data received", "/Public/NetAdapter/%u/BytesReceived", uStatNo); PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatTransmitBytes, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES, "Amount of data transmitted", "/Public/NetAdapter/%u/BytesTransmitted", uStatNo); PDMDevHlpSTAMRegisterF(pDevIns, &pDevIns->iInstance, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, STAMUNIT_NONE, "Device instance number", "/Public/NetAdapter/%u/%s", uStatNo, pDevIns->pReg->szName); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatReceiveBytes, STAMTYPE_COUNTER, "ReceiveBytes", STAMUNIT_BYTES, "Amount of data received"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTransmitBytes, STAMTYPE_COUNTER, "TransmitBytes", STAMUNIT_BYTES, "Amount of data transmitted"); #ifdef VBOX_WITH_STATISTICS PDMDevHlpSTAMRegister(pDevIns, &pThis->StatMMIOReadRZ, STAMTYPE_PROFILE, "MMIO/ReadRZ", STAMUNIT_TICKS_PER_CALL, "Profiling MMIO reads in RZ"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatMMIOReadR3, STAMTYPE_PROFILE, "MMIO/ReadR3", STAMUNIT_TICKS_PER_CALL, "Profiling MMIO reads in R3"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatMMIOWriteRZ, STAMTYPE_PROFILE, "MMIO/WriteRZ", STAMUNIT_TICKS_PER_CALL, "Profiling MMIO writes in RZ"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatMMIOWriteR3, STAMTYPE_PROFILE, "MMIO/WriteR3", STAMUNIT_TICKS_PER_CALL, "Profiling MMIO writes in R3"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatAPROMRead, STAMTYPE_PROFILE, "IO/APROMRead", STAMUNIT_TICKS_PER_CALL, "Profiling APROM reads"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatAPROMWrite, STAMTYPE_PROFILE, "IO/APROMWrite", STAMUNIT_TICKS_PER_CALL, "Profiling APROM writes"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatIOReadRZ, STAMTYPE_PROFILE, "IO/ReadRZ", STAMUNIT_TICKS_PER_CALL, "Profiling IO reads in RZ"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatIOReadR3, STAMTYPE_PROFILE, "IO/ReadR3", STAMUNIT_TICKS_PER_CALL, "Profiling IO reads in R3"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatIOWriteRZ, STAMTYPE_PROFILE, "IO/WriteRZ", STAMUNIT_TICKS_PER_CALL, "Profiling IO writes in RZ"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatIOWriteR3, STAMTYPE_PROFILE, "IO/WriteR3", STAMUNIT_TICKS_PER_CALL, "Profiling IO writes in R3"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTimer, STAMTYPE_PROFILE, "Timer", STAMUNIT_TICKS_PER_CALL, "Profiling Timer"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatReceive, STAMTYPE_PROFILE, "Receive", STAMUNIT_TICKS_PER_CALL, "Profiling receive"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatRxOverflow, STAMTYPE_PROFILE, "RxOverflow", STAMUNIT_TICKS_PER_OCCURENCE, "Profiling RX overflows"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatRxOverflowWakeup, STAMTYPE_PROFILE, "RxOverflowWakeup", STAMUNIT_TICKS_PER_OCCURENCE, "Nr of RX overflow wakeups"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTransmitCase1, STAMTYPE_COUNTER, "Transmit/Case1", STAMUNIT_OCCURENCES, "Single descriptor transmit"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTransmitCase2, STAMTYPE_COUNTER, "Transmit/Case2", STAMUNIT_OCCURENCES, "Multi descriptor transmit"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTransmitRZ, STAMTYPE_PROFILE, "Transmit/TotalRZ", STAMUNIT_TICKS_PER_CALL, "Profiling transmits in RZ"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTransmitR3, STAMTYPE_PROFILE, "Transmit/TotalR3", STAMUNIT_TICKS_PER_CALL, "Profiling transmits in R3"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTransmitSendRZ, STAMTYPE_PROFILE, "Transmit/SendRZ", STAMUNIT_TICKS_PER_CALL, "Profiling PCnet send transmit in RZ"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTransmitSendR3, STAMTYPE_PROFILE, "Transmit/SendR3", STAMUNIT_TICKS_PER_CALL, "Profiling PCnet send transmit in R3"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTdtePollRZ, STAMTYPE_PROFILE, "TdtePollRZ", STAMUNIT_TICKS_PER_CALL, "Profiling PCnet TdtePoll in RZ"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTdtePollR3, STAMTYPE_PROFILE, "TdtePollR3", STAMUNIT_TICKS_PER_CALL, "Profiling PCnet TdtePoll in R3"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatRdtePollRZ, STAMTYPE_PROFILE, "RdtePollRZ", STAMUNIT_TICKS_PER_CALL, "Profiling PCnet RdtePoll in RZ"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatRdtePollR3, STAMTYPE_PROFILE, "RdtePollR3", STAMUNIT_TICKS_PER_CALL, "Profiling PCnet RdtePoll in R3"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTmdStoreRZ, STAMTYPE_PROFILE, "TmdStoreRZ", STAMUNIT_TICKS_PER_CALL, "Profiling PCnet TmdStore in RZ"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTmdStoreR3, STAMTYPE_PROFILE, "TmdStoreR3", STAMUNIT_TICKS_PER_CALL, "Profiling PCnet TmdStore in R3"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatXmitSkipCurrent, STAMTYPE_COUNTER, "Xmit/Skipped", STAMUNIT_OCCURENCES, ""); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatInterrupt, STAMTYPE_PROFILE, "UpdateIRQ", STAMUNIT_TICKS_PER_CALL, "Profiling interrupt checks"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatPollTimer, STAMTYPE_PROFILE, "PollTimer", STAMUNIT_TICKS_PER_CALL, "Profiling poll timer"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatMIIReads, STAMTYPE_COUNTER, "MIIReads", STAMUNIT_OCCURENCES, "Number of MII reads"); # ifdef PCNET_NO_POLLING PDMDevHlpSTAMRegister(pDevIns, &pThis->StatRCVRingWrite, STAMTYPE_COUNTER, "Ring/RCVWrites", STAMUNIT_OCCURENCES, "Nr of receive ring writes"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatTXRingWrite, STAMTYPE_COUNTER, "Ring/TXWrites", STAMUNIT_OCCURENCES, "Nr of transmit ring writes"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatRingWriteR3, STAMTYPE_COUNTER, "Ring/R3/Writes", STAMUNIT_OCCURENCES, "Nr of monitored ring page writes"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatRingWriteR0, STAMTYPE_COUNTER, "Ring/R0/Writes", STAMUNIT_OCCURENCES, "Nr of monitored ring page writes"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatRingWriteRC, STAMTYPE_COUNTER, "Ring/RC/Writes", STAMUNIT_OCCURENCES, "Nr of monitored ring page writes"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatRingWriteFailedR3, STAMTYPE_COUNTER, "Ring/R3/Failed", STAMUNIT_OCCURENCES, "Nr of failed ring page writes"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatRingWriteFailedR0, STAMTYPE_COUNTER, "Ring/R0/Failed", STAMUNIT_OCCURENCES, "Nr of failed ring page writes"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatRingWriteFailedRC, STAMTYPE_COUNTER, "Ring/RC/Failed", STAMUNIT_OCCURENCES, "Nr of failed ring page writes"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatRingWriteOutsideR3, STAMTYPE_COUNTER, "Ring/R3/Outside", STAMUNIT_OCCURENCES, "Nr of monitored writes outside ring"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatRingWriteOutsideR0, STAMTYPE_COUNTER, "Ring/R0/Outside", STAMUNIT_OCCURENCES, "Nr of monitored writes outside ring"); PDMDevHlpSTAMRegister(pDevIns, &pThis->StatRingWriteOutsideRC, STAMTYPE_COUNTER, "Ring/RC/Outside", STAMUNIT_OCCURENCES, "Nr of monitored writes outside ring"); # endif /* PCNET_NO_POLLING */ unsigned i; for (i = 0; i < RT_ELEMENTS(pThis->aStatXmitFlush) - 1; i++) PDMDevHlpSTAMRegisterF(pDevIns, &pThis->aStatXmitFlush[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES, "", "XmitFlushIrq/%02u", i + 1); PDMDevHlpSTAMRegisterF(pDevIns, &pThis->aStatXmitFlush[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES, "", "XmitFlushIrq/%02u-inf", i + 1); for (i = 0; i < RT_ELEMENTS(pThis->aStatXmitChainCounts) - 1; i++) PDMDevHlpSTAMRegisterF(pDevIns, &pThis->aStatXmitChainCounts[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES, "", "XmitChainCounts/%02u", i + 1); PDMDevHlpSTAMRegisterF(pDevIns, &pThis->aStatXmitChainCounts[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES, "", "XmitChainCounts/%02u-inf", i + 1); #endif /* VBOX_WITH_STATISTICS */ return VINF_SUCCESS; } #else /* !IN_RING3 */ /** * @callback_method_impl{PDMDEVREGR0,pfnConstruct} */ static DECLCALLBACK(int) pcnetRZConstruct(PPDMDEVINS pDevIns) { PDMDEV_CHECK_VERSIONS_RETURN(pDevIns); PPCNETSTATE pThis = PDMDEVINS_2_DATA(pDevIns, PPCNETSTATE); /* Critical section setup: */ int rc = PDMDevHlpSetDeviceCritSect(pDevIns, &pThis->CritSect); AssertRCReturn(rc, rc); /* PCI I/O ports: */ if (pThis->hIoPortsPciAProm != NIL_IOMIOPORTHANDLE) { rc = PDMDevHlpIoPortSetUpContext(pDevIns, pThis->hIoPortsPciAProm, pcnetIoPortAPromWrite, pcnetIOPortAPromRead, NULL /*pvUser*/); AssertRCReturn(rc, rc); rc = PDMDevHlpIoPortSetUpContext(pDevIns, pThis->hIoPortsPci, pcnetIoPortWrite, pcnetIoPortRead, NULL /*pvUser*/); AssertRCReturn(rc, rc); } else Assert(pThis->hIoPortsPci == NIL_IOMIOPORTHANDLE); /** @todo PCI MMIO */ /* ISA I/O ports: */ if (pThis->hIoPortsIsaAProm != NIL_IOMIOPORTHANDLE) { rc = PDMDevHlpIoPortSetUpContext(pDevIns, pThis->hIoPortsIsaAProm, pcnetIoPortAPromWrite, pcnetIOPortAPromRead, NULL /*pvUser*/); AssertRCReturn(rc, rc); rc = PDMDevHlpIoPortSetUpContext(pDevIns, pThis->hIoPortsIsa, pcnetIoPortWrite, pcnetIoPortRead, NULL /*pvUser*/); AssertRCReturn(rc, rc); } else Assert(pThis->hIoPortsIsa == NIL_IOMIOPORTHANDLE); return VINF_SUCCESS; } #endif /* !IN_RING3 */ /** * The device registration structure. */ const PDMDEVREG g_DevicePCNet = { /* .u32Version = */ PDM_DEVREG_VERSION, /* .uReserved0 = */ 0, /* .szName = */ "pcnet", #ifdef PCNET_GC_ENABLED /* .fFlags = */ PDM_DEVREG_FLAGS_DEFAULT_BITS | PDM_DEVREG_FLAGS_RZ | PDM_DEVREG_FLAGS_NEW_STYLE, #else /* .fFlags = */ PDM_DEVREG_FLAGS_DEFAULT_BITS, #endif /* .fClass = */ PDM_DEVREG_CLASS_NETWORK, /* .cMaxInstances = */ ~0U, /* .uSharedVersion = */ 42, /* .cbInstanceShared = */ sizeof(PCNETSTATE), /* .cbInstanceCC = */ sizeof(PCNETSTATECC), /* .cbInstanceRC = */ sizeof(PCNETSTATERC), /* .cMaxPciDevices = */ 1, /* .cMaxMsixVectors = */ 0, /* .pszDescription = */ "AMD PCnet Ethernet controller.\n", #if defined(IN_RING3) /* .pszRCMod = */ "VBoxDDRC.rc", /* .pszR0Mod = */ "VBoxDDR0.r0", /* .pfnConstruct = */ pcnetR3Construct, /* .pfnDestruct = */ pcnetR3Destruct, /* .pfnRelocate = */ pcnetR3Relocate, /* .pfnMemSetup = */ NULL, /* .pfnPowerOn = */ NULL, /* .pfnReset = */ pcnetR3Reset, /* .pfnSuspend = */ pcnetR3Suspend, /* .pfnResume = */ NULL, /* .pfnAttach = */ pcnetR3Attach, /* .pfnDetach = */ pcnetR3Detach, /* .pfnQueryInterface = */ NULL, /* .pfnInitComplete = */ NULL, /* .pfnPowerOff = */ pcnetR3PowerOff, /* .pfnSoftReset = */ NULL, /* .pfnReserved0 = */ NULL, /* .pfnReserved1 = */ NULL, /* .pfnReserved2 = */ NULL, /* .pfnReserved3 = */ NULL, /* .pfnReserved4 = */ NULL, /* .pfnReserved5 = */ NULL, /* .pfnReserved6 = */ NULL, /* .pfnReserved7 = */ NULL, #elif defined(IN_RING0) /* .pfnEarlyConstruct = */ NULL, /* .pfnConstruct = */ pcnetRZConstruct, /* .pfnDestruct = */ NULL, /* .pfnFinalDestruct = */ NULL, /* .pfnRequest = */ NULL, /* .pfnReserved0 = */ NULL, /* .pfnReserved1 = */ NULL, /* .pfnReserved2 = */ NULL, /* .pfnReserved3 = */ NULL, /* .pfnReserved4 = */ NULL, /* .pfnReserved5 = */ NULL, /* .pfnReserved6 = */ NULL, /* .pfnReserved7 = */ NULL, #elif defined(IN_RC) /* .pfnConstruct = */ pcnetRZConstruct, /* .pfnReserved0 = */ NULL, /* .pfnReserved1 = */ NULL, /* .pfnReserved2 = */ NULL, /* .pfnReserved3 = */ NULL, /* .pfnReserved4 = */ NULL, /* .pfnReserved5 = */ NULL, /* .pfnReserved6 = */ NULL, /* .pfnReserved7 = */ NULL, #else # error "Not in IN_RING3, IN_RING0 or IN_RC!" #endif /* .u32VersionEnd = */ PDM_DEVREG_VERSION }; #endif /* !VBOX_DEVICE_STRUCT_TESTCASE */