static tEplKernel VEthRecvFrame(tEplFrameInfo * pFrameInfo_p)
{
tEplKernel Ret = kEplSuccessful;
struct net_device *pNetDevice = pVEthNetDevice_g;
struct net_device_stats *pStats = netdev_priv(pNetDevice);
struct sk_buff *pSkb;
EPL_DBGLVL_VETH_TRACE1("VEthRecvFrame: FrameSize=%u\n",
pFrameInfo_p->m_uiFrameSize);
pSkb = dev_alloc_skb(pFrameInfo_p->m_uiFrameSize + 2);
if (pSkb == NULL) {
pStats->rx_dropped++;
goto Exit;
}
pSkb->dev = pNetDevice;
skb_reserve(pSkb, 2);
memcpy((void *)skb_put(pSkb, pFrameInfo_p->m_uiFrameSize),
pFrameInfo_p->m_pFrame, pFrameInfo_p->m_uiFrameSize);
pSkb->protocol = eth_type_trans(pSkb, pNetDevice);
pSkb->ip_summed = CHECKSUM_UNNECESSARY;
// call netif_rx with skb
netif_rx(pSkb);
EPL_DBGLVL_VETH_TRACE1("VEthRecvFrame: SrcMAC=0x%llx\n",
AmiGetQword48FromBe(pFrameInfo_p->m_pFrame->
m_be_abSrcMac));
// update receive statistics
pStats->rx_packets++;
pStats->rx_bytes += pFrameInfo_p->m_uiFrameSize;
Exit:
return Ret;
}
//---------------------------------------------------------------------------
//
// Function: VEthRecvFrame
//
// Description: Receive function from EplDllk module
//
// Parameters: pFrameInfo_p = point to packet buffer
// pReleaseRxBuffer_p = release for the buffer
//
// Returns: kEplSuccessful
// kEplNoResource = no buffer is available
//
// State:
//
//---------------------------------------------------------------------------
static tEplKernel VEthRecvFrame(tEplFrameInfo * pFrameInfo_p, tEdrvReleaseRxBuffer* pReleaseRxBuffer_p)
{
tEplKernel Ret = kEplSuccessful;
//BENCHMARK_MOD_03_SET(8);
EPL_DBGLVL_VETH_TRACE("VEthRecvFrame: FrameSize=%u\n", pFrameInfo_p->m_uiFrameSize);
EPL_DBGLVL_VETH_TRACE("VEthRecvFrame: SrcMAC=0x%llx\n", AmiGetQword48FromBe(pFrameInfo_p->m_pFrame->m_be_abSrcMac));
if( (VEthInstance_g.m_aVEthRxBuffer[VEthInstance_g.m_bVethRxBuffWritePos].m_pbBuffer != NULL)
|| (VEthInstance_g.m_aVEthRxBuffer[VEthInstance_g.m_bVethRxBuffWritePos].m_uiRxMsgLen != 0) )
{
EPL_DBGLVL_VETH_TRACE("VEthRecvFrame: No free buffer available!\n");
Ret = kEplNoResource;
goto Exit;
}
VEthInstance_g.m_aVEthRxBuffer[VEthInstance_g.m_bVethRxBuffWritePos].m_BufferInFrame = kEdrvBufferLastInFrame;
VEthInstance_g.m_aVEthRxBuffer[VEthInstance_g.m_bVethRxBuffWritePos].m_pbBuffer = (BYTE *)pFrameInfo_p->m_pFrame;
VEthInstance_g.m_aVEthRxBuffer[VEthInstance_g.m_bVethRxBuffWritePos].m_uiRxMsgLen = pFrameInfo_p->m_uiFrameSize;
VEthInstance_g.m_bVethRxBuffWritePos++;
if (VEthInstance_g.m_bVethRxBuffWritePos == EPL_VETH_NUM_RX_BUFFERS)
{
VEthInstance_g.m_bVethRxBuffWritePos = 0;
}
// set receive stats
VEthInstance_g.m_Statistics.m_dwMsgrcv++;
*pReleaseRxBuffer_p = kEdrvReleaseRxBufferLater;
//BENCHMARK_MOD_03_RESET(8);
Exit:
return Ret;
}
