DrvDedicatedNic.cpp revision e64031e20c39650a7bc902a3e1aba613b9415dee
08266121784fb8ee9e77961250d150471c6b6640vboxsync * DrvDedicatedNic - Experimental network driver for using a dedicated (V)NIC.
e64031e20c39650a7bc902a3e1aba613b9415deevboxsync * Copyright (C) 2010 Oracle Corporation
08266121784fb8ee9e77961250d150471c6b6640vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
08266121784fb8ee9e77961250d150471c6b6640vboxsync * available from http://www.virtualbox.org. This file is free software;
08266121784fb8ee9e77961250d150471c6b6640vboxsync * you can redistribute it and/or modify it under the terms of the GNU
08266121784fb8ee9e77961250d150471c6b6640vboxsync * General Public License (GPL) as published by the Free Software
08266121784fb8ee9e77961250d150471c6b6640vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
08266121784fb8ee9e77961250d150471c6b6640vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
08266121784fb8ee9e77961250d150471c6b6640vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
08266121784fb8ee9e77961250d150471c6b6640vboxsync/*******************************************************************************
08266121784fb8ee9e77961250d150471c6b6640vboxsync* Header Files *
08266121784fb8ee9e77961250d150471c6b6640vboxsync*******************************************************************************/
08266121784fb8ee9e77961250d150471c6b6640vboxsync/*******************************************************************************
08266121784fb8ee9e77961250d150471c6b6640vboxsync* Structures and Typedefs *
08266121784fb8ee9e77961250d150471c6b6640vboxsync*******************************************************************************/
08266121784fb8ee9e77961250d150471c6b6640vboxsync * Instance data for the dedicated (V)NIC driver.
08266121784fb8ee9e77961250d150471c6b6640vboxsync * @implements PDMINETWORKUP
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** The network interface. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** The network interface. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** The network config interface.
08266121784fb8ee9e77961250d150471c6b6640vboxsync * Can (in theory at least) be NULL. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** Pointer to the driver instance. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** Ring-3 base interface for the ring-0 context. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** Ring-3 base interface for the raw-mode context. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** The network interface for the ring-0 context. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** Pointer to the driver instance. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** The interface we're talking to. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** Set if the link is up, clear if its down. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** Set if the current transmit operation is done the XMIT thread. If clear,
08266121784fb8ee9e77961250d150471c6b6640vboxsync * we assume its an EMT. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** The name of the interface that we're connected to. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** Critical section serializing transmission. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** The transmit scatter gather buffer (ring-3 -> ring-0). */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** The transmit GSO context (when applicable). */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** The transmit buffer (ring-3 -> ring-0). */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** The receive scatter gather buffer. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** The receive buffer (ring-0 -> ring-3). */
08266121784fb8ee9e77961250d150471c6b6640vboxsync/** Pointer to the instance data for the dedicated (V)NIC driver. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync * Ring-0 operations.
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** Invalid zero value.. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** Initialize the connection to the NIC. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** Terminate the connection to the NIC. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** Suspend the operation. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** Resume the operation. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** Wait for and do receive work.
08266121784fb8ee9e77961250d150471c6b6640vboxsync * We do this in ring-0 instead of ring-3 to save 1-2 buffer copies and
08266121784fb8ee9e77961250d150471c6b6640vboxsync * unnecessary context switching. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** Wait for and do transmit work.
08266121784fb8ee9e77961250d150471c6b6640vboxsync * We do this in ring-0 instead of ring-3 to save 1-2 buffer copies and
08266121784fb8ee9e77961250d150471c6b6640vboxsync * unnecessary context switching. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** Changes the promiscuousness of the interface (guest point of view). */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** End of the valid operations. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** The usual 32-bit hack. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync * @interface_method_impl{FNPDMDRVREQHANDLERR0}
08266121784fb8ee9e77961250d150471c6b6640vboxsyncPDMBOTHCBDECL(int) drvR0DedicatedNicReqHandler(PPDMDRVINS pDrvIns, uint32_t uOperation, uint64_t u64Arg)
08266121784fb8ee9e77961250d150471c6b6640vboxsync return VERR_NOT_IMPLEMENTED;//drvR0DedicatedNicReqInit(pDrvIns, u64Arg);
08266121784fb8ee9e77961250d150471c6b6640vboxsync return VERR_NOT_IMPLEMENTED;//drvR0DedicatedNicReqTerm(pDrvIns);
08266121784fb8ee9e77961250d150471c6b6640vboxsync return VERR_NOT_IMPLEMENTED;//drvR0DedicatedNicReqSuspend(pDrvIns);
08266121784fb8ee9e77961250d150471c6b6640vboxsync return VERR_NOT_IMPLEMENTED;//drvR0DedicatedNicReqResume(pDrvIns);
08266121784fb8ee9e77961250d150471c6b6640vboxsync return VERR_NOT_IMPLEMENTED;//drvR0DedicatedNicReqRecv(pDrvIns);
08266121784fb8ee9e77961250d150471c6b6640vboxsync return VERR_NOT_IMPLEMENTED;//drvR0DedicatedNicReqSend(pDrvIns);
08266121784fb8ee9e77961250d150471c6b6640vboxsync return VERR_NOT_IMPLEMENTED;//drvR0DedicatedNicReqPromisc(pDrvIns, !!u64Arg);
08266121784fb8ee9e77961250d150471c6b6640vboxsync#endif /* IN_RING0 */
08266121784fb8ee9e77961250d150471c6b6640vboxsync/* -=-=-=-=- PDMINETWORKUP -=-=-=-=- */
08266121784fb8ee9e77961250d150471c6b6640vboxsync * @interface_method_impl{PDMINETWORKUP,pfnBeginXmit}
08266121784fb8ee9e77961250d150471c6b6640vboxsyncPDMBOTHCBDECL(int) drvDedicatedNicUp_BeginXmit(PPDMINETWORKUP pInterface, bool fOnWorkerThread)
08266121784fb8ee9e77961250d150471c6b6640vboxsync PDRVDEDICATEDNIC pThis = RT_FROM_MEMBER(pInterface, DRVDEDICATEDNIC, CTX_SUFF(INetworkUp));
08266121784fb8ee9e77961250d150471c6b6640vboxsync ASMAtomicUoWriteBool(&pThis->fXmitOnXmitThread, fOnWorkerThread);
08266121784fb8ee9e77961250d150471c6b6640vboxsync * @interface_method_impl{PDMINETWORKUP,pfnAllocBuf}
08266121784fb8ee9e77961250d150471c6b6640vboxsyncPDMBOTHCBDECL(int) drvDedicatedNicUp_AllocBuf(PPDMINETWORKUP pInterface, size_t cbMin,
08266121784fb8ee9e77961250d150471c6b6640vboxsync PDRVDEDICATEDNIC pThis = RT_FROM_MEMBER(pInterface, DRVDEDICATEDNIC, CTX_SUFF(INetworkUp));
08266121784fb8ee9e77961250d150471c6b6640vboxsync * If the net is down, we can return immediately.
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** @todo Ask the driver for a buffer, atomically if we're called on EMT. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync#else /* IN_RING3 */
08266121784fb8ee9e77961250d150471c6b6640vboxsync * Are we busy or is the request too big?
08266121784fb8ee9e77961250d150471c6b6640vboxsync if (RT_UNLIKELY(pThis->XmitSg.fFlags & PDMSCATTERGATHER_FLAGS_MAGIC_MASK) == PDMSCATTERGATHER_FLAGS_MAGIC)
08266121784fb8ee9e77961250d150471c6b6640vboxsync * Initialize the S/G buffer and return.
08266121784fb8ee9e77961250d150471c6b6640vboxsync pThis->XmitSg.fFlags = PDMSCATTERGATHER_FLAGS_MAGIC | PDMSCATTERGATHER_FLAGS_OWNER_1;
08266121784fb8ee9e77961250d150471c6b6640vboxsync pThis->XmitSg.cbAvailable = sizeof(pThis->abXmitBuf);
08266121784fb8ee9e77961250d150471c6b6640vboxsync pThis->XmitSg.aSegs[0].cbSeg = pThis->XmitSg.cbAvailable;
08266121784fb8ee9e77961250d150471c6b6640vboxsync pThis->XmitSg.aSegs[0].pvSeg = &pThis->abXmitBuf[0];
08266121784fb8ee9e77961250d150471c6b6640vboxsync# if 0 /* poison */
08266121784fb8ee9e77961250d150471c6b6640vboxsync memset(pThis->XmitSg.aSegs[0].pvSeg, 'F', pThis->XmitSg.aSegs[0].cbSeg);
08266121784fb8ee9e77961250d150471c6b6640vboxsync#endif /* IN_RING3 */
08266121784fb8ee9e77961250d150471c6b6640vboxsync * @interface_method_impl{PDMINETWORKUP,pfnFreeBuf}
08266121784fb8ee9e77961250d150471c6b6640vboxsyncPDMBOTHCBDECL(int) drvDedicatedNicUp_FreeBuf(PPDMINETWORKUP pInterface, PPDMSCATTERGATHER pSgBuf)
08266121784fb8ee9e77961250d150471c6b6640vboxsync PDRVDEDICATEDNIC pThis = RT_FROM_MEMBER(pInterface, DRVDEDICATEDNIC, CTX_SUFF(INetworkUp));
08266121784fb8ee9e77961250d150471c6b6640vboxsync Assert(pSgBuf->fFlags == (PDMSCATTERGATHER_FLAGS_MAGIC | PDMSCATTERGATHER_FLAGS_OWNER_1));
08266121784fb8ee9e77961250d150471c6b6640vboxsync Assert((pSgBuf->fFlags & PDMSCATTERGATHER_FLAGS_MAGIC_MASK) == PDMSCATTERGATHER_FLAGS_MAGIC);
08266121784fb8ee9e77961250d150471c6b6640vboxsync * @interface_method_impl{PDMINETWORKUP,pfnSendBuf}
08266121784fb8ee9e77961250d150471c6b6640vboxsyncPDMBOTHCBDECL(int) drvDedicatedNicUp_SendBuf(PPDMINETWORKUP pInterface, PPDMSCATTERGATHER pSgBuf, bool fOnWorkerThread)
08266121784fb8ee9e77961250d150471c6b6640vboxsync PDRVDEDICATEDNIC pThis = RT_FROM_MEMBER(pInterface, DRVDEDICATEDNIC, CTX_SUFF(INetworkUp));
08266121784fb8ee9e77961250d150471c6b6640vboxsync Assert(pSgBuf->fFlags == (PDMSCATTERGATHER_FLAGS_MAGIC | PDMSCATTERGATHER_FLAGS_OWNER_1));
08266121784fb8ee9e77961250d150471c6b6640vboxsync * Tell the driver to send the packet.
08266121784fb8ee9e77961250d150471c6b6640vboxsync#else /* IN_RING3 */
08266121784fb8ee9e77961250d150471c6b6640vboxsync * Call ring-0 to start the transfer.
08266121784fb8ee9e77961250d150471c6b6640vboxsync int rc = PDMDrvHlpCallR0(pThis->pDrvInsR3, DRVDEDICATEDNICR0OP_SEND, pSgBuf->cbUsed);
08266121784fb8ee9e77961250d150471c6b6640vboxsync#endif /* IN_RING3 */
08266121784fb8ee9e77961250d150471c6b6640vboxsync * @interface_method_impl{PDMINETWORKUP,pfnEndXmit}
08266121784fb8ee9e77961250d150471c6b6640vboxsyncPDMBOTHCBDECL(void) drvDedicatedNicUp_EndXmit(PPDMINETWORKUP pInterface)
08266121784fb8ee9e77961250d150471c6b6640vboxsync PDRVDEDICATEDNIC pThis = RT_FROM_MEMBER(pInterface, DRVDEDICATEDNIC, CTX_SUFF(INetworkUp));
08266121784fb8ee9e77961250d150471c6b6640vboxsync ASMAtomicUoWriteBool(&pThis->fXmitOnXmitThread, false);
08266121784fb8ee9e77961250d150471c6b6640vboxsync * @interface_method_impl{PDMINETWORKUP,pfnSetPromiscuousMode}
08266121784fb8ee9e77961250d150471c6b6640vboxsyncPDMBOTHCBDECL(void) drvDedicatedNicUp_SetPromiscuousMode(PPDMINETWORKUP pInterface, bool fPromiscuous)
08266121784fb8ee9e77961250d150471c6b6640vboxsync PDRVDEDICATEDNIC pThis = RT_FROM_MEMBER(pInterface, DRVDEDICATEDNIC, CTX_SUFF(INetworkUp));
08266121784fb8ee9e77961250d150471c6b6640vboxsync /** @todo enable/disable promiscuous mode (should be easy) */
08266121784fb8ee9e77961250d150471c6b6640vboxsync * @interface_method_impl{PDMINETWORKUP,pfnNotifyLinkChanged}
08266121784fb8ee9e77961250d150471c6b6640vboxsyncstatic DECLCALLBACK(void) drvR3DedicatedNicUp_NotifyLinkChanged(PPDMINETWORKUP pInterface, PDMNETWORKLINKSTATE enmLinkState)
08266121784fb8ee9e77961250d150471c6b6640vboxsync PDRVDEDICATEDNIC pThis = RT_FROM_MEMBER(pInterface, DRVDEDICATEDNIC, CTX_SUFF(INetworkUp));
08266121784fb8ee9e77961250d150471c6b6640vboxsync AssertMsgFailed(("enmLinkState=%d\n", enmLinkState));
08266121784fb8ee9e77961250d150471c6b6640vboxsync LogFlow(("drvR3DedicatedNicUp_NotifyLinkChanged: enmLinkState=%d %d->%d\n", enmLinkState, pThis->fLinkDown, fLinkDown));
08266121784fb8ee9e77961250d150471c6b6640vboxsync/* -=-=-=-=- PDMIBASER0 -=-=-=-=- */
08266121784fb8ee9e77961250d150471c6b6640vboxsync * @interface_method_impl{PDMIBASER0,pfnQueryInterface}
08266121784fb8ee9e77961250d150471c6b6640vboxsyncstatic DECLCALLBACK(RTR0PTR) drvR3DedicatedNicIBaseR0_QueryInterface(PPDMIBASER0 pInterface, const char *pszIID)
08266121784fb8ee9e77961250d150471c6b6640vboxsync PDRVDEDICATEDNIC pThis = RT_FROM_MEMBER(pInterface, DRVDEDICATEDNIC, IBaseR0);
08266121784fb8ee9e77961250d150471c6b6640vboxsync PDMIBASER0_RETURN_INTERFACE(pThis->pDrvInsR3, pszIID, PDMINETWORKUP, &pThis->INetworkUpR0);
08266121784fb8ee9e77961250d150471c6b6640vboxsync/* -=-=-=-=- PDMIBASE -=-=-=-=- */
08266121784fb8ee9e77961250d150471c6b6640vboxsync * @interface_method_impl{PDMIBASE,pfnQueryInterface}
08266121784fb8ee9e77961250d150471c6b6640vboxsyncstatic DECLCALLBACK(void *) drvR3DedicatedNicIBase_QueryInterface(PPDMIBASE pInterface, const char *pszIID)
08266121784fb8ee9e77961250d150471c6b6640vboxsync PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
08266121784fb8ee9e77961250d150471c6b6640vboxsync PDRVDEDICATEDNIC pThis = PDMINS_2_DATA(pDrvIns, PDRVDEDICATEDNIC);
08266121784fb8ee9e77961250d150471c6b6640vboxsync PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
08266121784fb8ee9e77961250d150471c6b6640vboxsync PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASER0, &pThis->IBaseR0);
08266121784fb8ee9e77961250d150471c6b6640vboxsync PDMIBASE_RETURN_INTERFACE(pszIID, PDMINETWORKUP, &pThis->INetworkUpR3);
08266121784fb8ee9e77961250d150471c6b6640vboxsync/* -=-=-=-=- PDMDRVREG -=-=-=-=- */
08266121784fb8ee9e77961250d150471c6b6640vboxsync * @interface_method_impl{PDMDRVREG,pfnPowerOff}
08266121784fb8ee9e77961250d150471c6b6640vboxsyncstatic DECLCALLBACK(void) drvR3DedicatedNicPowerOff(PPDMDRVINS pDrvIns)
08266121784fb8ee9e77961250d150471c6b6640vboxsync PDRVDEDICATEDNIC pThis = PDMINS_2_DATA(pDrvIns, PDRVDEDICATEDNIC);
08266121784fb8ee9e77961250d150471c6b6640vboxsync int rc = PDMDrvHlpCallR0(pDrvIns, DRVDEDICATEDNICR0OP_SUSPEND, 0);
08266121784fb8ee9e77961250d150471c6b6640vboxsync * @interface_method_impl{PDMDRVREG,pfnResume}
08266121784fb8ee9e77961250d150471c6b6640vboxsyncstatic DECLCALLBACK(void) drvR3DedicatedNicResume(PPDMDRVINS pDrvIns)
08266121784fb8ee9e77961250d150471c6b6640vboxsync PDRVDEDICATEDNIC pThis = PDMINS_2_DATA(pDrvIns, PDRVDEDICATEDNIC);
08266121784fb8ee9e77961250d150471c6b6640vboxsync int rc = PDMDrvHlpCallR0(pDrvIns, DRVDEDICATEDNICR0OP_RESUME, 0);
08266121784fb8ee9e77961250d150471c6b6640vboxsync * @interface_method_impl{PDMDRVREG,pfnSuspend}
08266121784fb8ee9e77961250d150471c6b6640vboxsyncstatic DECLCALLBACK(void) drvR3DedicatedNicSuspend(PPDMDRVINS pDrvIns)
08266121784fb8ee9e77961250d150471c6b6640vboxsync PDRVDEDICATEDNIC pThis = PDMINS_2_DATA(pDrvIns, PDRVDEDICATEDNIC);
08266121784fb8ee9e77961250d150471c6b6640vboxsync int rc = PDMDrvHlpCallR0(pDrvIns, DRVDEDICATEDNICR0OP_SUSPEND, 0);
08266121784fb8ee9e77961250d150471c6b6640vboxsync * @interface_method_impl{PDMDRVREG,pfnPowerOn}
08266121784fb8ee9e77961250d150471c6b6640vboxsyncstatic DECLCALLBACK(void) drvR3DedicatedNicPowerOn(PPDMDRVINS pDrvIns)
08266121784fb8ee9e77961250d150471c6b6640vboxsync PDRVDEDICATEDNIC pThis = PDMINS_2_DATA(pDrvIns, PDRVDEDICATEDNIC);
08266121784fb8ee9e77961250d150471c6b6640vboxsync int rc = PDMDrvHlpCallR0(pDrvIns, DRVDEDICATEDNICR0OP_RESUME, 0);
08266121784fb8ee9e77961250d150471c6b6640vboxsync * @interface_method_impl{PDMDRVREG,pfnDestruct}
08266121784fb8ee9e77961250d150471c6b6640vboxsyncstatic DECLCALLBACK(void) drvR3DedicatedNicDestruct(PPDMDRVINS pDrvIns)
08266121784fb8ee9e77961250d150471c6b6640vboxsync PDRVDEDICATEDNIC pThis = PDMINS_2_DATA(pDrvIns, PDRVDEDICATEDNIC);
08266121784fb8ee9e77961250d150471c6b6640vboxsync int rc = PDMDrvHlpCallR0(pDrvIns, DRVDEDICATEDNICR0OP_TERM, 0);
08266121784fb8ee9e77961250d150471c6b6640vboxsync * @interface_method_impl{PDMDRVREG,pfnConstruct}
08266121784fb8ee9e77961250d150471c6b6640vboxsyncstatic DECLCALLBACK(int) drvR3DedicatedNicConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
08266121784fb8ee9e77961250d150471c6b6640vboxsync PDRVDEDICATEDNIC pThis = PDMINS_2_DATA(pDrvIns, PDRVDEDICATEDNIC);
08266121784fb8ee9e77961250d150471c6b6640vboxsync * Init the static parts.
08266121784fb8ee9e77961250d150471c6b6640vboxsync pThis->pSupDrvSession = PDMDrvHlpGetSupDrvSession(pDrvIns);
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* IBase* */
08266121784fb8ee9e77961250d150471c6b6640vboxsync pDrvIns->IBase.pfnQueryInterface = drvR3DedicatedNicIBase_QueryInterface;
08266121784fb8ee9e77961250d150471c6b6640vboxsync pThis->IBaseR0.pfnQueryInterface = drvR3DedicatedNicIBaseR0_QueryInterface;
08266121784fb8ee9e77961250d150471c6b6640vboxsync pThis->IBaseRC.pfnQueryInterface = drvR3DedicatedNicIBaseRC_QueryInterface;
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* INetworkUp */
08266121784fb8ee9e77961250d150471c6b6640vboxsync pThis->INetworkUpR3.pfnBeginXmit = drvDedicatedNic_BeginXmit;
08266121784fb8ee9e77961250d150471c6b6640vboxsync pThis->INetworkUpR3.pfnAllocBuf = drvDedicatedNic_AllocBuf;
08266121784fb8ee9e77961250d150471c6b6640vboxsync pThis->INetworkUpR3.pfnFreeBuf = drvDedicatedNic_FreeBuf;
08266121784fb8ee9e77961250d150471c6b6640vboxsync pThis->INetworkUpR3.pfnSendBuf = drvDedicatedNic_SendBuf;
08266121784fb8ee9e77961250d150471c6b6640vboxsync pThis->INetworkUpR3.pfnEndXmit = drvDedicatedNic_EndXmit;
08266121784fb8ee9e77961250d150471c6b6640vboxsync pThis->INetworkUpR3.pfnSetPromiscuousMode = drvDedicatedNic_SetPromiscuousMode;
08266121784fb8ee9e77961250d150471c6b6640vboxsync pThis->INetworkUpR3.pfnNotifyLinkChanged = drvR3DedicatedNicUp_NotifyLinkChanged;
08266121784fb8ee9e77961250d150471c6b6640vboxsync * Need to create a generic way of calling into the ring-0 side of the driver so
08266121784fb8ee9e77961250d150471c6b6640vboxsync * we can initialize the thing as well as send and receive. Hmm ... the
08266121784fb8ee9e77961250d150471c6b6640vboxsync * sending could be done more efficiently from a ring-0 kernel thread actually
08266121784fb8ee9e77961250d150471c6b6640vboxsync * (saves context switching and 1-2 copy operations). Ditto for receive, except
08266121784fb8ee9e77961250d150471c6b6640vboxsync * we need to tie the thread to the process or we cannot access the guest ram so
08266121784fb8ee9e77961250d150471c6b6640vboxsync * Internal networking transport driver registration record.
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* u32Version */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* szName */
08266121784fb8ee9e77961250d150471c6b6640vboxsync "DedicatedNic",
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* szRCMod */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* szR0Mod */
08266121784fb8ee9e77961250d150471c6b6640vboxsync "VBoxDDR0.r0",
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* pszDescription */
08266121784fb8ee9e77961250d150471c6b6640vboxsync "Dedicated (V)NIC Driver",
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* fFlags */
08266121784fb8ee9e77961250d150471c6b6640vboxsync PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT | PDM_DRVREG_FLAGS_R0,
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* fClass. */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* cMaxInstances */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* cbInstance */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* pfnConstruct */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* pfnDestruct */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* pfnRelocate */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* pfnIOCtl */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* pfnPowerOn */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* pfnReset */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* pfnSuspend */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* pfnResume */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* pfnAttach */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* pfnDetach */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* pfnPowerOff */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* pfnSoftReset */
08266121784fb8ee9e77961250d150471c6b6640vboxsync /* u32EndVersion */
08266121784fb8ee9e77961250d150471c6b6640vboxsync#endif /* IN_RING3 */