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Diffstat (limited to 'src/VBox/Additions/solaris/Virtio/VirtioNet-solaris.c')
| -rw-r--r-- | src/VBox/Additions/solaris/Virtio/VirtioNet-solaris.c | 852 |
1 files changed, 852 insertions, 0 deletions
diff --git a/src/VBox/Additions/solaris/Virtio/VirtioNet-solaris.c b/src/VBox/Additions/solaris/Virtio/VirtioNet-solaris.c new file mode 100644 index 00000000..dee46ad7 --- /dev/null +++ b/src/VBox/Additions/solaris/Virtio/VirtioNet-solaris.c @@ -0,0 +1,852 @@ +/* $Id: VirtioNet-solaris.c $ */ +/** @file + * VirtualBox Guest Additions - Virtio Network Driver for Solaris. + */ + +/* + * Copyright (C) 2010-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include "Virtio-solaris.h" +#include "VirtioPci-solaris.h" + +#include <sys/conf.h> +#include <sys/sunddi.h> +#include <sys/mac_provider.h> +#include <sys/strsun.h> +#include <sys/cmn_err.h> + +#include <iprt/assert.h> +#include <iprt/initterm.h> +#include <iprt/errcore.h> +#include <VBox/log.h> +#include <iprt/mem.h> +#include <iprt/rand.h> +#include <iprt/string.h> + + +/********************************************************************************************************************************* +* Defined Constants And Macros * +*********************************************************************************************************************************/ +#define DEVICE_NAME "virtnet" +/** The module descriptions as seen in 'modinfo'. */ +#define DEVICE_DESC_DRV "VirtualBox VirtioNet" + +/** Copied from "mac_ether.h" - why the heck is this not public?? All Solaris + * mac clients use it... */ +#define MAC_PLUGIN_IDENT_ETHER "mac_ether" + +/* Copied from our Virtio Device emulation. */ +#define VIRTIO_NET_CSUM 0x00000001 /* Host handles pkts w/ partial csum */ +#define VIRTIO_NET_GUEST_CSUM 0x00000002 /* Guest handles pkts w/ partial csum */ +#define VIRTIO_NET_MAC 0x00000020 /* Host has given MAC address. */ +#define VIRTIO_NET_GSO 0x00000040 /* Host handles pkts w/ any GSO type */ +#define VIRTIO_NET_GUEST_TSO4 0x00000080 /* Guest can handle TSOv4 in. */ +#define VIRTIO_NET_GUEST_TSO6 0x00000100 /* Guest can handle TSOv6 in. */ +#define VIRTIO_NET_GUEST_ECN 0x00000200 /* Guest can handle TSO[6] w/ ECN in. */ +#define VIRTIO_NET_GUEST_UFO 0x00000400 /* Guest can handle UFO in. */ +#define VIRTIO_NET_HOST_TSO4 0x00000800 /* Host can handle TSOv4 in. */ +#define VIRTIO_NET_HOST_TSO6 0x00001000 /* Host can handle TSOv6 in. */ +#define VIRTIO_NET_HOST_ECN 0x00002000 /* Host can handle TSO[6] w/ ECN in. */ +#define VIRTIO_NET_HOST_UFO 0x00004000 /* Host can handle UFO in. */ +#define VIRTIO_NET_MRG_RXBUF 0x00008000 /* Host can merge receive buffers. */ +#define VIRTIO_NET_STATUS 0x00010000 /* virtio_net_config.status available */ +#define VIRTIO_NET_CTRL_VQ 0x00020000 /* Control channel available */ +#define VIRTIO_NET_CTRL_RX 0x00040000 /* Control channel RX mode support */ +#define VIRTIO_NET_CTRL_VLAN 0x00080000 /* Control channel VLAN filtering */ + + +/********************************************************************************************************************************* +* Internal Functions * +*********************************************************************************************************************************/ +static void *VirtioNetDevAlloc(PVIRTIODEVICE pDevice); +static void VirtioNetDevFree(PVIRTIODEVICE pDevice); +static int VirtioNetDevAttach(PVIRTIODEVICE pDevice); +static int VirtioNetDevDetach(PVIRTIODEVICE pDevice); + +static int VirtioNetAttach(dev_info_t *pDip, ddi_attach_cmd_t Cmd); +static int VirtioNetDetach(dev_info_t *pDip, ddi_detach_cmd_t Cmd); + +static int VirtioNetStat(void *pvArg, uint_t cmdStat, uint64_t *pu64Val); +static int VirtioNetStart(void *pvArg); +static void VirtioNetStop(void *pvArg); +static int VirtioNetSetPromisc(void *pvArg, boolean_t fPromiscOn); +static int VirtioNetSetMulticast(void *pvArg, boolean_t fAdd, const uint8_t *pbMac); +static int VirtioNetSetUnicast(void *pvArg, const uint8_t *pbMac); +static boolean_t VirtioNetGetCapab(void *pvArg, mac_capab_t Capab, void *pvCapabData); +static mblk_t *VirtioNetXmit(void *pvArg, mblk_t *pMsg); +static uint_t VirtioNetISR(caddr_t addrArg); + +static int VirtioNetAttachQueues(PVIRTIODEVICE pDevice); +static void VirtioNetDetachQueues(PVIRTIODEVICE pDevice); + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +/** + * Device operations for Virtio Net. + */ +VIRTIODEVICEOPS g_VirtioDeviceOpsNet = +{ + VirtioNetDevAlloc, + VirtioNetDevFree, + VirtioNetDevAttach, + VirtioNetDevDetach +}; + +/** + * virtio_net_t: Private data per Virtio Device. + */ +typedef struct virtio_net_t +{ + mac_handle_t hMac; /* Handle to the MAC layer. */ + RTMAC MacAddr; /* MAC address. */ + PVIRTIOQUEUE pRxQueue; /* Receive Queue. */ + PVIRTIOQUEUE pTxQueue; /* Xmit Queue. */ + PVIRTIOQUEUE pCtrlQueue; /* Control Queue. */ + kmem_cache_t *pTxCache; /* TX buffer cache. */ +} virtio_net_t; + +/** + * virtio_txbuf_t: Virtio Net TX buffer. + */ +typedef struct virtio_net_txbuf_t +{ + ddi_dma_handle_t hDMA; /* DMA TX handle. */ +} virtio_net_txbuf_t; + +/* + * virtio_net_header_t: Virtio Net TX/RX buffer header. + */ +typedef struct virtio_net_header_t +{ + uint8_t u8Flags; /* Flags. */ + uint8_t u8GSOType; /* GSO type. */ + uint16_t u16HdrLen; /* Length of this header. */ + uint16_t u16GSOSize; /* GSO length if applicable. */ + uint16_t u16CSumStart; /* Checksum start.*/ + uint16_t u16CSumOffset; /* Checksum offset.*/ +} virtio_net_header_t; + +/** + * MAC layer hooks for VirtioNet. + */ +static mac_callbacks_t g_VirtioNetCallbacks = +{ + MC_GETCAPAB, /* Mask of available extra hooks. */ + VirtioNetStat, + VirtioNetStart, + VirtioNetStop, + VirtioNetSetPromisc, + VirtioNetSetMulticast, + VirtioNetSetUnicast, + VirtioNetXmit, + NULL, /* Reserved. */ + NULL, /* IOCtl. */ + VirtioNetGetCapab, +}; + +/** + * DMA transfer attributes for Xmit/Recv. buffers. + */ +static ddi_dma_attr_t g_VirtioNetBufDmaAttr = +{ + DMA_ATTR_V0, /* Version. */ + 0, /* Lowest usable address. */ + 0xffffffffffffffffULL, /* Highest usable address. */ + 0x7fffffff, /* Maximum DMAable byte count. */ + MMU_PAGESIZE, /* Alignment in bytes. */ + 0x7ff, /* Bitmap of burst sizes */ + 1, /* Minimum transfer. */ + 0xffffffffU, /* Maximum transfer. */ + 0xffffffffffffffffULL, /* Maximum segment length. */ + 1, /* Maximum number of segments. */ + 1, /* Granularity. */ + 0 /* Flags (reserved). */ +}; + +/** + * cb_ops: driver char/block entry points + */ +static struct cb_ops g_VirtioNetCbOps = +{ + nulldev, /* cb open */ + nulldev, /* cb close */ + nodev, /* b strategy */ + nodev, /* b dump */ + nodev, /* b print */ + nodev, /* cb read */ + nodev, /* cb write */ + nodev, /* cb ioctl */ + nodev, /* c devmap */ + nodev, /* c mmap */ + nodev, /* c segmap */ + nochpoll, /* c poll */ + ddi_prop_op, /* property ops */ + NULL, /* streamtab */ + D_MP, /* compat. flag */ + CB_REV /* revision */ +}; + +/** + * dev_ops: driver entry/exit and other ops. + */ +static struct dev_ops g_VirtioNetDevOps = +{ + DEVO_REV, /* driver build revision */ + 0, /* ref count */ + NULL, /* get info */ + nulldev, /* identify */ + nulldev, /* probe */ + VirtioNetAttach, + VirtioNetDetach, + nodev, /* reset */ + &g_VirtioNetCbOps, + (struct bus_ops *)0, + nodev /* power */ +}; + +/** + * modldrv: export driver specifics to kernel + */ +static struct modldrv g_VirtioNetDriver = +{ + &mod_driverops, /* extern from kernel */ + DEVICE_DESC_DRV " " VBOX_VERSION_STRING "r" RT_XSTR(VBOX_SVN_REV), + &g_VirtioNetDevOps +}; + +/** + * modlinkage: export install/remove/info to the kernel + */ +static struct modlinkage g_VirtioNetModLinkage = +{ + MODREV_1, /* loadable module system revision */ + { + &g_VirtioNetDriver, /* driver framework */ + NULL /* terminate array of linkage structures */ + } +}; + + +/** + * Kernel entry points + */ +int _init(void) +{ + LogFlowFunc((VIRTIOLOGNAME ":_init\n")); + + /* + * Prevent module autounloading. + */ + modctl_t *pModCtl = mod_getctl(&g_VirtioNetModLinkage); + if (pModCtl) + pModCtl->mod_loadflags |= MOD_NOAUTOUNLOAD; + else + LogRel((VIRTIOLOGNAME ":failed to disable autounloading!\n")); + + /* + * Initialize IPRT. + */ + int rc = RTR0Init(0); + if (RT_SUCCESS(rc)) + { + /* + * Initialize Solaris specific globals here. + */ + mac_init_ops(&g_VirtioNetDevOps, DEVICE_NAME); + rc = mod_install(&g_VirtioNetModLinkage); + if (!rc) + return rc; + + LogRel((VIRTIOLOGNAME ":mod_install failed. rc=%d\n", rc)); + mac_fini_ops(&g_VirtioNetDevOps); + RTR0Term(); + return rc; + } + else + LogRel((VIRTIOLOGNAME ":failed to initialize IPRT (rc=%d)\n", rc)); + + return RTErrConvertToErrno(rc); +} + + +int _fini(void) +{ + int rc; + LogFlowFunc((VIRTIOLOGNAME ":_fini\n")); + + rc = mod_remove(&g_VirtioNetModLinkage); + if (!rc) + { + mac_fini_ops(&g_VirtioNetDevOps); + RTR0Term(); + } + return rc; +} + + +int _info(struct modinfo *pModInfo) +{ + LogFlowFunc((VIRTIOLOGNAME ":_info\n")); + + int rc = mod_info(&g_VirtioNetModLinkage, pModInfo); + + LogFlow((VIRTIOLOGNAME ":_info returns %d\n", rc)); + return rc; +} + + +/** + * Attach entry point, to attach a device to the system or resume it. + * + * @param pDip The module structure instance. + * @param Cmd Operation type (attach/resume). + * + * @return corresponding solaris error code. + */ +static int VirtioNetAttach(dev_info_t *pDip, ddi_attach_cmd_t Cmd) +{ + return VirtioAttach(pDip, Cmd, &g_VirtioDeviceOpsNet, &g_VirtioHyperOpsPci); +} + + +/** + * Detach entry point, to detach a device to the system or suspend it. + * + * @param pDip The module structure instance. + * @param Cmd Operation type (detach/suspend). + * + * @return corresponding solaris error code. + */ +static int VirtioNetDetach(dev_info_t *pDip, ddi_detach_cmd_t Cmd) +{ + return VirtioDetach(pDip, Cmd); +} + + +/** + * Virtio Net TX buffer constructor for kmem_cache_create(). + * + * @param pvBuf Pointer to the allocated buffer. + * @param pvArg Opaque private data. + * @param fFlags Propagated KM flag values. + * + * @return 0 on success, or -1 on failure. + */ +static int VirtioNetTxBufCreate(void *pvBuf, void *pvArg, int fFlags) +{ + virtio_net_txbuf_t *pTxBuf = pvBuf; + PVIRTIODEVICE pDevice = pvArg; + + /** @todo ncookies handles? */ + int rc = ddi_dma_alloc_handle(pDevice->pDip, &g_VirtioNetBufDmaAttr, + fFlags & KM_NOSLEEP ? DDI_DMA_DONTWAIT : DDI_DMA_SLEEP, + 0 /* Arg */, &pTxBuf->hDMA); + if (rc == DDI_SUCCESS) + return 0; + return -1; +} + + +/** + * Virtio Net TX buffer destructor for kmem_cache_create(). + * + * @param pvBuf Pointer to the allocated buffer. + * @param pvArg + */ +static void VirtioNetTxBufDestroy(void *pvBuf, void *pvArg) +{ + NOREF(pvArg); + virtio_net_txbuf_t *pTxBuf = pvBuf; + + ddi_dma_free_handle(&pTxBuf->hDMA); +} + + +/** + * Virtio Net private data allocation routine. + * + * @param pDevice Pointer to the Virtio device instance. + * + * @return Allocated private data that must only be freed by calling + * VirtioNetDevFree(). + */ +static void *VirtioNetDevAlloc(PVIRTIODEVICE pDevice) +{ + LogFlowFunc((VIRTIOLOGNAME ":VirtioNetDevAlloc pDevice=%p\n", pDevice)); + + AssertReturn(pDevice, NULL); + virtio_net_t *pNet = RTMemAllocZ(sizeof(virtio_net_t)); + if (RT_LIKELY(pNet)) + { + /* + * Create a kernel memory cache for frequently allocated/deallocated + * buffers. + */ + char szCachename[KSTAT_STRLEN]; + RTStrPrintf(szCachename, sizeof(szCachename), "VirtioNet_Cache_%d", ddi_get_instance(pDevice->pDip)); + pNet->pTxCache = kmem_cache_create(szCachename, /* Cache name */ + sizeof(virtio_net_txbuf_t), /* Size of buffers in cache */ + 0, /* Align */ + VirtioNetTxBufCreate, /* Buffer constructor */ + VirtioNetTxBufDestroy, /* Buffer destructor */ + NULL, /* pfnReclaim */ + pDevice, /* Private data */ + NULL, /* "vmp", MBZ (man page) */ + 0 /* "cflags", MBZ (man page) */ + ); + if (RT_LIKELY(pNet->pTxCache)) + return pNet; + else + LogRel((VIRTIOLOGNAME ":kmem_cache_create failed.\n")); + } + else + LogRel((VIRTIOLOGNAME ":failed to alloc %u bytes for Net instance.\n", sizeof(virtio_net_t))); + + return NULL; +} + + +/** + * Virtio Net private data free routine. + * + * @param pDevice Pointer to the Virtio device instance. + */ +static void VirtioNetDevFree(PVIRTIODEVICE pDevice) +{ + LogFlowFunc((VIRTIOLOGNAME ":VirtioNetDevFree pDevice=%p\n", pDevice)); + AssertReturnVoid(pDevice); + + virtio_net_t *pNet = pDevice->pvDevice; + kmem_cache_destroy(pNet->pTxCache); + RTMemFree(pNet); + pDevice->pvDevice = NULL; +} + + +/** + * Virtio Net device attach rountine. + * + * @param pDevice Pointer to the Virtio device instance. + * + * @return corresponding solaris error code. + */ +static int VirtioNetDevAttach(PVIRTIODEVICE pDevice) +{ + LogFlowFunc((VIRTIOLOGNAME ":VirtioNetDevAttach pDevice=%p\n", pDevice)); + + virtio_net_t *pNet = pDevice->pvDevice; + mac_register_t *pMacRegHandle = mac_alloc(MAC_VERSION); + if (pMacRegHandle) + { + pMacRegHandle->m_driver = pDevice; + pMacRegHandle->m_dip = pDevice->pDip; + pMacRegHandle->m_callbacks = &g_VirtioNetCallbacks; + pMacRegHandle->m_type_ident = MAC_PLUGIN_IDENT_ETHER; + pMacRegHandle->m_min_sdu = 0; + pMacRegHandle->m_max_sdu = 1500; /** @todo verify */ + /** @todo should we set the margin size? */ + pMacRegHandle->m_src_addr = pNet->MacAddr.au8; + + /* + * Get MAC from the host or generate a random MAC address. + */ + if (pDevice->fHostFeatures & VIRTIO_NET_MAC) + { + pDevice->pHyperOps->pfnGet(pDevice, 0 /* offset */, &pNet->MacAddr.au8, sizeof(pNet->MacAddr)); + LogFlow((VIRTIOLOGNAME ":VirtioNetDevAttach: Obtained MAC address from host: %.6Rhxs\n", pNet->MacAddr.au8)); + } + else + { + pNet->MacAddr.au8[0] = 0x08; + pNet->MacAddr.au8[1] = 0x00; + pNet->MacAddr.au8[2] = 0x27; + RTRandBytes(&pNet->MacAddr.au8[3], 3); + LogFlow((VIRTIOLOGNAME ":VirtioNetDevAttach: Generated MAC address %.6Rhxs\n", pNet->MacAddr.au8)); + } + + int rc = VirtioNetAttachQueues(pDevice); + if (rc == DDI_SUCCESS) + { + rc = mac_register(pMacRegHandle, &pNet->hMac); + if (rc == 0) + { + mac_link_update(pNet->hMac, LINK_STATE_DOWN); + mac_free(pMacRegHandle); + LogFlow((VIRTIOLOGNAME ":VirtioNetDevAttach: successfully registered mac.\n")); + return DDI_SUCCESS; + } + else + LogRel((VIRTIOLOGNAME ":VirtioNetDevAttach: mac_register failed. rc=%d\n", rc)); + + VirtioNetDetachQueues(pDevice); + } + else + LogRel((VIRTIOLOGNAME ":VirtioNetDevAttach: VirtioNetAttachQueues failed. rc=%d\n", rc)); + + mac_free(pMacRegHandle); + } + else + LogRel((VIRTIOLOGNAME ":VirtioNetDevAttach: mac_alloc failed. Invalid version!?!\n")); + + return DDI_FAILURE; +} + + +/** + * Virtio Net device detach routine. + * + * @param pDevice Pointer to the Virtio device instance. + * + * @return corresponding solaris error code. + */ +static int VirtioNetDevDetach(PVIRTIODEVICE pDevice) +{ + LogFlowFunc((VIRTIOLOGNAME ":VirtioNetDevDetach pDevice=%p\n", pDevice)); + virtio_net_t *pNet = pDevice->pvDevice; + + int rc = mac_unregister(pNet->hMac); + if (rc == 0) + { + VirtioNetDetachQueues(pDevice); + return DDI_SUCCESS; + } + else + LogRel((VIRTIOLOGNAME ":VirtioNetDevDetach: mac_unregister failed. rc=%d\n", rc)); + + return DDI_FAILURE; +} + + +/** + * Attach the Virtio Net TX, RX and control queues. + * + * @param pDevice Pointer to the Virtio device instance. + * + * @return corresponding solaris error code. + */ +static int VirtioNetAttachQueues(PVIRTIODEVICE pDevice) +{ + LogFlowFunc((VIRTIOLOGNAME ":VirtioNetAttachQueues pDevice=%p\n", pDevice)); + + virtio_net_t *pNet = pDevice->pvDevice; + + pNet->pRxQueue = VirtioGetQueue(pDevice, 0 /* index */ ); + if (pNet->pRxQueue) + { + pNet->pTxQueue = VirtioGetQueue(pDevice, 1 /* index */); + if (pNet->pTxQueue) + { + if (pDevice->fHostFeatures & VIRTIO_NET_CTRL_VQ) + { + pNet->pCtrlQueue = VirtioGetQueue(pDevice, 2 /* index */); + if (pNet->pCtrlQueue) + { + LogFlow((VIRTIOLOGNAME ":VirtioNetAttachQueues successfully obtained 3 queues.\n")); + return DDI_SUCCESS; + } + else + LogRel((VIRTIOLOGNAME ":VirtioNetAttachQueues: failed to get Control queue.\n")); + } + else + { + LogFlow((VIRTIOLOGNAME ":VirtioNetAttachQueues successfully obtained 2 queues.\n")); + return DDI_SUCCESS; + } + + VirtioPutQueue(pDevice, pNet->pTxQueue); + pNet->pTxQueue = NULL; + } + else + LogRel((VIRTIOLOGNAME ":VirtioNetAttachQueues: failed to get TX queue.\n")); + + VirtioPutQueue(pDevice, pNet->pRxQueue); + pNet->pRxQueue = NULL; + } + else + LogRel((VIRTIOLOGNAME ":VirtioNetAttachQueues: failed to get RX queue.\n")); + + return DDI_FAILURE; +} + + +/** + * Detach the Virtio Net TX, RX and control queues. + * + * @param pDevice Pointer to the Virtio device instance. + */ +static void VirtioNetDetachQueues(PVIRTIODEVICE pDevice) +{ + LogFlowFunc((VIRTIOLOGNAME ":VirtioNetDetachQueues pDevice=%p\n", pDevice)); + virtio_net_t *pNet = pDevice->pvDevice; + + if ( pDevice->fHostFeatures & VIRTIO_NET_CTRL_VQ + && pNet->pCtrlQueue) + VirtioPutQueue(pDevice, pNet->pCtrlQueue); + + if (pNet->pTxCache) + VirtioPutQueue(pDevice, pNet->pTxQueue); + + if (pNet->pRxQueue) + VirtioPutQueue(pDevice, pNet->pRxQueue); +} + + + +/* -=-=-=-=- Virtio Net MAC layer callbacks -=-=-=-=- */ + +/** + * Virtio Net statistics. + * + * @param pvArg Pointer to private data. + * @param cmdStat Which statistics to provide. + * @param pu64Val Where to write statistics data. + * + * @return corresponding solaris error code. + */ +static int VirtioNetStat(void *pvArg, uint_t cmdStat, uint64_t *pu64Val) +{ + NOREF(pvArg); + NOREF(cmdStat); + NOREF(pu64Val); + return ENOTSUP; +} + + +/** + * Virtio Net Start. + * + * @param pvArg Pointer to private data. + * + * @return corresponding solaris error code. + */ +static int VirtioNetStart(void *pvArg) +{ + PVIRTIODEVICE pDevice = pvArg; + virtio_net_t *pNet = pDevice->pvDevice; + mac_link_update(pNet->hMac, LINK_STATE_UP); + + pDevice->pHyperOps->pfnSetStatus(pDevice, VIRTIO_PCI_STATUS_DRV_OK); + return 0; +} + + +/** + * Virtio Net Stop. + * + * @param pvArg Pointer to private data. + */ +static void VirtioNetStop(void *pvArg) +{ + PVIRTIODEVICE pDevice = pvArg; + virtio_net_t *pNet = pDevice->pvDevice; + mac_link_update(pNet->hMac, LINK_STATE_DOWN); + + /* + * I don't think we should set status here as the host checks the status on every Xmit. This means pending Xmits + * would also be dropped. + * @todo: Not sure what's the best way to signal connect/disconnect of the link to the host. Figure it out. + */ +} + + +/** + * Virtio Net toggle Promiscuous mode. + * + * @param pvArg Pointer to private data. + * @param fPromiscOn Promiscuous On/Off. + * + * @return corresponding solaris error code. + */ +static int VirtioNetSetPromisc(void *pvArg, boolean_t fPromiscOn) +{ + NOREF(pvArg); + NOREF(fPromiscOn); + return 0; +} + + +/** + * Virtio Net set/add multicast address. + * + * @param pvArg Pointer to private data. + * @param fAdd Whether to add multicast address or not. + * @param pbMac Pointer to the multicast MAC address to set/add. + * + * @return corresponding solaris error code. + */ +static int VirtioNetSetMulticast(void *pvArg, boolean_t fAdd, const uint8_t *pbMac) +{ + NOREF(pvArg); + NOREF(fAdd); + NOREF(pbMac); + return 1; +} + + +/** + * Virtio Net set unicast address. + * + * @param pvArg Pointer to private data. + * @param pbMac Pointer to the unicast MAC address to set. + * + * @return corresponding solaris error code. + */ +static int VirtioNetSetUnicast(void *pvArg, const uint8_t *pbMac) +{ + NOREF(pvArg); + NOREF(pbMac); + return ENOTSUP; +} + + +/** + * Virtio Net get capabilities hook. + * + * @param pvArg Pointer to private data. + * @param Capab MAC layer capabilities. + * @param pvCapabData Pointer to store capability info. + * + * @return B_TRUE upon success, otherwise B_FALSE. + */ +static boolean_t VirtioNetGetCapab(void *pvArg, mac_capab_t Capab, void *pvCapabData) +{ + NOREF(pvArg); + NOREF(Capab); + NOREF(pvCapabData); + return B_FALSE; +} + + +/** + * Virtio Net Xmit hook. + * + * @param pvArg Pointer to private data. + * @param pMsg Pointer to the message. + * + * @return Pointer to message not Xmited. + */ +static mblk_t *VirtioNetXmit(void *pvArg, mblk_t *pMsg) +{ + LogFlowFunc((VIRTIOLOGNAME ":VirtioNetXmit pMsg=%p\n", pMsg)); + cmn_err(CE_NOTE, "Xmit pMsg=%p\n", pMsg); + + PVIRTIODEVICE pDevice = pvArg; + virtio_net_t *pNet = pDevice->pvDevice; + bool fNotify = false; + + while (pMsg) + { + mblk_t *pNextMsg = pMsg->b_next; + +#if 0 + mblk_t *pHdr = allocb(sizeof(virtio_net_header_t), BPRI_HI); + if (RT_UNLIKELY(!pHdr)) + break; + + virtio_net_header_t *pNetHdr = pHdr->b_rptr; + memset(pNetHdr, 0, sizeof(virtio_net_header_t)); + pNetHdr->u8Flags = VIRTIO_NET_GUEST_CSUM; + pNetHdr->u16HdrLen = sizeof(virtio_net_header_t); + + pHdr->b_wptr += sizeof(virtio_net_header_t); + pHdr->b_cont = pMsg; +#endif + + virtio_net_txbuf_t *pTxBuf = kmem_cache_alloc(pNet->pTxCache, KM_SLEEP); + if (!pTxBuf) + break; + + ddi_dma_cookie_t DmaCookie; + uint_t cCookies; + int rc = ddi_dma_addr_bind_handle(pTxBuf->hDMA, NULL /* addrspace */, (char *)pMsg->b_rptr, MBLKL(pMsg), + DDI_DMA_WRITE | DDI_DMA_STREAMING, DDI_DMA_SLEEP, 0 /* addr */, + &DmaCookie, &cCookies); + cmn_err(CE_NOTE, "VirtioNetXmit: MBLKL pMsg=%u\n", MBLKL(pMsg)); + if (rc != DDI_DMA_MAPPED) + { + LogRel((VIRTIOLOGNAME ":VirtioNetXmit failed to map address to DMA handle. rc=%d\n", rc)); + kmem_cache_free(pNet->pTxCache, pTxBuf); + break; + } + + /** @todo get 'cCookies' slots from the ring. */ + + for (uint_t i = 0; i < cCookies; i++) + { + uint16_t fFlags = 0; + if (i < cCookies - 1) + fFlags |= VIRTIO_FLAGS_RING_DESC_NEXT; + + rc = VirtioRingPush(pNet->pTxQueue, DmaCookie.dmac_laddress, DmaCookie.dmac_size, fFlags); + if (RT_FAILURE(rc)) + { + LogRel((VIRTIOLOGNAME ":VirtioNetXmit failed. rc=%Rrc\n", rc)); + break; + } + + ddi_dma_nextcookie(pTxBuf->hDMA, &DmaCookie); + } + + pMsg = pNextMsg; + fNotify = true; + if (RT_FAILURE(rc)) + { + ddi_dma_unbind_handle(pTxBuf->hDMA); + break; + } + } + + if (fNotify) + pDevice->pHyperOps->pfnNotifyQueue(pDevice, pNet->pTxQueue); + + return pMsg; +} + + +/** + * Interrupt Service Routine for Virtio Net. + * + * @param Arg Private data (unused, will be NULL). + * @returns DDI_INTR_CLAIMED if it's our interrupt, DDI_INTR_UNCLAIMED if it isn't. + */ +static uint_t VirtioNetISR(caddr_t Arg) +{ + cmn_err(CE_NOTE, "VirtioNetISR Arg=%p\n", Arg); + NOREF(Arg); + return DDI_INTR_UNCLAIMED; +} + |