/****************************************************************************** * * Name: sky2.c * Project: Yukon2 specific functions and implementations * Version: $Revision: 1.35.2.39 $ * Date: $Date: 2005/09/05 08:59:54 $ * Purpose: The main driver source module * *****************************************************************************/ /****************************************************************************** * * (C)Copyright 1998-2002 SysKonnect GmbH. * (C)Copyright 2002-2005 Marvell. * * Driver for Marvell Yukon/2 chipset and SysKonnect Gigabit Ethernet * Server Adapters. * * Author: Ralph Roesler (rroesler@syskonnect.de) * Mirko Lindner (mlindner@syskonnect.de) * * Address all question to: linux@syskonnect.de * * 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; either version 2 of the License, or * (at your option) any later version. * * The information in this file is provided "AS IS" without warranty. * *****************************************************************************/ #include #ifdef CONFIG_SK98 #include "h/skdrv1st.h" #include "h/skdrv2nd.h" #if 0 /* uboot */ #include #endif /****************************************************************************** * * Local Function Prototypes * *****************************************************************************/ static void InitPacketQueues(SK_AC *pAC,int Port); static void GiveTxBufferToHw(SK_AC *pAC,SK_IOC IoC,int Port); static void GiveRxBufferToHw(SK_AC *pAC,SK_IOC IoC,int Port,SK_PACKET *pPacket); static SK_BOOL HandleReceives(SK_AC *pAC,int Port,SK_U16 Len,SK_U32 FrameStatus,SK_U16 Tcp1,SK_U16 Tcp2,SK_U32 Tist,SK_U16 Vlan); static void CheckForSendComplete(SK_AC *pAC,SK_IOC IoC,int Port,SK_PKT_QUEUE *pPQ,SK_LE_TABLE *pLETab,unsigned int Done); static void UnmapAndFreeTxPktBuffer(SK_AC *pAC,SK_PACKET *pSkPacket,int TxPort); static SK_BOOL AllocateAndInitLETables(SK_AC *pAC); static SK_BOOL AllocatePacketBuffersYukon2(SK_AC *pAC); static void FreeLETables(SK_AC *pAC); static void FreePacketBuffers(SK_AC *pAC); static SK_BOOL AllocAndMapRxBuffer(SK_AC *pAC,SK_PACKET *pSkPacket,int Port); #ifdef CONFIG_SK98LIN_NAPI static SK_BOOL HandleStatusLEs(SK_AC *pAC,int *WorkDone,int WorkToDo); #else static SK_BOOL HandleStatusLEs(SK_AC *pAC); #endif extern void SkGeCheckTimer (DEV_NET *pNet); extern void SkLocalEventQueue( SK_AC *pAC, SK_U32 Class, SK_U32 Event, SK_U32 Param1, SK_U32 Param2, SK_BOOL Flag); extern void SkLocalEventQueue64( SK_AC *pAC, SK_U32 Class, SK_U32 Event, SK_U64 Param, SK_BOOL Flag); /****************************************************************************** * * Local Variables * *****************************************************************************/ #define MAX_NBR_RX_BUFFERS_IN_HW 0x15 static SK_U8 NbrRxBuffersInHW; #define FLUSH_OPC(le) /****************************************************************************** * * Global Functions * *****************************************************************************/ int SkY2Xmit( struct sk_buff *skb, struct SK_NET_DEVICE *dev); void FillReceiveTableYukon2(SK_AC *pAC,SK_IOC IoC,int Port); /***************************************************************************** * * SkY2RestartStatusUnit - restarts teh status unit * * Description: * Reenables the status unit after any De-Init (e.g. when altering * the sie of the MTU via 'ifconfig a.b.c.d mtu xxx') * * Returns: N/A */ void SkY2RestartStatusUnit( SK_AC *pAC) /* pointer to adapter control context */ { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MSG, ("==> SkY2RestartStatusUnit\n")); /* ** It might be that the TX timer is not started. Therefore ** it is initialized here -> to be more investigated! */ SK_OUT32(pAC->IoBase, STAT_TX_TIMER_INI, HW_MS_TO_TICKS(pAC,10)); pAC->StatusLETable.Done = 0; pAC->StatusLETable.Put = 0; pAC->StatusLETable.HwPut = 0; SkGeY2InitStatBmu(pAC, pAC->IoBase, &pAC->StatusLETable); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MSG, ("<== SkY2RestartStatusUnit\n")); } /***************************************************************************** * * SkY2RlmtSend - sends out a single RLMT notification * * Description: * This function sends out an RLMT frame * * Returns: * > 0 - on succes: the number of bytes in the message * = 0 - on resource shortage: this frame sent or dropped, now * the ring is full ( -> set tbusy) * < 0 - on failure: other problems ( -> return failure to upper layers) */ int SkY2RlmtSend ( SK_AC *pAC, /* pointer to adapter control context */ int PortNr, /* index of port the packet(s) shall be send to */ struct sk_buff *pMessage) /* pointer to send-message */ { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MSG, ("=== SkY2RlmtSend\n")); return -1; // temporarily do not send out RLMT frames #if 0 return(SkY2Xmit(pMessage, pAC->dev[PortNr])); SkY2Xmit needs device #endif } /***************************************************************************** * * SkY2AllocateResources - Allocates all required resources for Yukon2 * * Description: * This function allocates all memory needed for the Yukon2. * It maps also RX buffers to the LETables and initializes the * status list element table. * * Returns: * SK_TRUE, if all resources could be allocated and setup succeeded * SK_FALSE, if an error */ SK_BOOL SkY2AllocateResources ( SK_AC *pAC) /* pointer to adapter control context */ { int CurrMac; SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_INIT, ("==> SkY2AllocateResources\n")); /* ** Initialize the packet queue variables first */ for (CurrMac = 0; CurrMac < pAC->GIni.GIMacsFound; CurrMac++) { InitPacketQueues(pAC, CurrMac); } /* ** Get sufficient memory for the LETables */ if (!AllocateAndInitLETables(pAC)) { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_INIT | SK_DBGCAT_DRV_ERROR, ("No memory for LETable.\n")); return(SK_FALSE); } /* ** Allocate and intialize memory for both RX and TX ** packet and fragment buffers. On an error, free ** previously allocated LETable memory and quit. */ if (!AllocatePacketBuffersYukon2(pAC)) { FreeLETables(pAC); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_INIT | SK_DBGCAT_DRV_ERROR, ("No memory for Packetbuffers.\n")); return(SK_FALSE); } /* ** Rx and Tx LE tables will be initialized in SkGeOpen() ** ** It might be that the TX timer is not started. Therefore ** it is initialized here -> to be more investigated! */ SK_OUT32(pAC->IoBase, STAT_TX_TIMER_INI, HW_MS_TO_TICKS(pAC,10)); SkGeY2InitStatBmu(pAC, pAC->IoBase, &pAC->StatusLETable); pAC->MaxUnusedRxLeWorking = MAX_UNUSED_RX_LE_WORKING; SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_INIT, ("<== SkY2AllocateResources\n")); return (SK_TRUE); } /***************************************************************************** * * SkY2FreeResources - Frees previously allocated resources of Yukon2 * * Description: * This function frees all previously allocated memory of the Yukon2. * * Returns: N/A */ void SkY2FreeResources ( SK_AC *pAC) /* pointer to adapter control context */ { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MSG, ("==> SkY2FreeResources\n")); FreeLETables(pAC); FreePacketBuffers(pAC); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MSG, ("<== SkY2FreeResources\n")); } /***************************************************************************** * * SkY2AllocateRxBuffers - Allocates the receive buffers for a port * * Description: * This function allocated all the RX buffers of the Yukon2. * * Returns: N/A */ void SkY2AllocateRxBuffers ( SK_AC *pAC, /* pointer to adapter control context */ SK_IOC IoC, /* I/O control context */ int Port) /* port index of RX */ { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_INIT, ("==> SkY2AllocateRxBuffers (Port %c)\n", Port)); FillReceiveTableYukon2(pAC, IoC, Port); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_INIT, ("<== SkY2AllocateRxBuffers\n")); } /***************************************************************************** * * SkY2FreeRxBuffers - Free's all allocates RX buffers of * * Description: * This function frees all RX buffers of the Yukon2 for a single port * * Returns: N/A */ void SkY2FreeRxBuffers ( SK_AC *pAC, /* pointer to adapter control context */ SK_IOC IoC, /* I/O control context */ int Port) /* port index of RX */ { SK_PACKET *pSkPacket; unsigned long Flags; /* for POP/PUSH macros */ SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MSG, ("==> SkY2FreeRxBuffers (Port %c)\n", Port)); if (pAC->RxPort[Port].ReceivePacketTable != NULL) { POP_FIRST_PKT_FROM_QUEUE(&pAC->RxPort[Port].RxQ_working, pSkPacket); while (pSkPacket != NULL) { if ((pSkPacket->pFrag) != NULL) { pci_unmap_page(pAC->PciDev, (dma_addr_t) pSkPacket->pFrag->pPhys, pSkPacket->pFrag->FragLen - 2, PCI_DMA_FROMDEVICE); DEV_KFREE_SKB_ANY(pSkPacket->pMBuf); pSkPacket->pMBuf = NULL; pSkPacket->pFrag->pPhys = (SK_U64) 0; pSkPacket->pFrag->pVirt = NULL; } PUSH_PKT_AS_LAST_IN_QUEUE(&pAC->RxPort[Port].RxQ_waiting, pSkPacket); POP_FIRST_PKT_FROM_QUEUE(&pAC->RxPort[Port].RxQ_working, pSkPacket); } } SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MSG, ("<== SkY2FreeRxBuffers\n")); } /***************************************************************************** * * SkY2FreeTxBuffers - Free's any currently maintained Tx buffer * * Description: * This function frees the TX buffers of the Yukon2 for a single port * which might be in use by a transmit action * * Returns: N/A */ void SkY2FreeTxBuffers ( SK_AC *pAC, /* pointer to adapter control context */ SK_IOC IoC, /* I/O control context */ int Port) /* port index of TX */ { SK_PACKET *pSkPacket; SK_FRAG *pSkFrag; unsigned long Flags; SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MSG, ("==> SkY2FreeTxBuffers (Port %c)\n", Port)); if (pAC->TxPort[Port][0].TransmitPacketTable != NULL) { POP_FIRST_PKT_FROM_QUEUE(&pAC->TxPort[Port][0].TxAQ_working, pSkPacket); while (pSkPacket != NULL) { if ((pSkFrag = pSkPacket->pFrag) != NULL) { UnmapAndFreeTxPktBuffer(pAC, pSkPacket, Port); } PUSH_PKT_AS_LAST_IN_QUEUE(&pAC->TxPort[Port][0].TxQ_free, pSkPacket); POP_FIRST_PKT_FROM_QUEUE(&pAC->TxPort[Port][0].TxAQ_working, pSkPacket); } #if USE_SYNC_TX_QUEUE POP_FIRST_PKT_FROM_QUEUE(&pAC->TxPort[Port][0].TxSQ_working, pSkPacket); while (pSkPacket != NULL) { if ((pSkFrag = pSkPacket->pFrag) != NULL) { UnmapAndFreeTxPktBuffer(pAC, pSkPacket, Port); } PUSH_PKT_AS_LAST_IN_QUEUE(&pAC->TxPort[Port][0].TxQ_free, pSkPacket); POP_FIRST_PKT_FROM_QUEUE(&pAC->TxPort[Port][0].TxSQ_working, pSkPacket); } #endif } SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MSG, ("<== SkY2FreeTxBuffers\n")); } /***************************************************************************** * * SkY2Isr - handle a receive IRQ for all yukon2 cards * * Description: * This function is called when a receive IRQ is set. (only for yukon2) * HandleReceives does the deferred processing of all outstanding * interrupt operations. * * Returns: N/A */ SkIsrRetVar SkY2Isr ( int irq, /* the irq we have received (might be shared!) */ void *dev_id, /* current device id */ struct pt_regs *ptregs) /* not used by our driver */ { struct SK_NET_DEVICE *dev = (struct SK_NET_DEVICE *)dev_id; DEV_NET *pNet = (DEV_NET*) dev->priv; SK_AC *pAC = pNet->pAC; SK_U32 IntSrc; unsigned long Flags; #ifndef CONFIG_SK98LIN_NAPI SK_BOOL handledStatLE = SK_FALSE; #else SK_BOOL SetIntMask = SK_FALSE; #endif SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC, ("==> SkY2Isr\n")); SK_IN32(pAC->IoBase, B0_Y2_SP_ISRC2, &IntSrc); if ((IntSrc == 0) && (!pNet->NetConsoleMode)){ SK_OUT32(pAC->IoBase, B0_Y2_SP_ICR, 2); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC, ("No Interrupt\n ==> SkY2Isr\n")); return; } #ifdef Y2_RECOVERY if (pNet->InRecover) { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC, ("Already in recover\n ==> SkY2Isr\n")); SK_OUT32(pAC->IoBase, B0_Y2_SP_ICR, 2); return; } #endif #ifdef CONFIG_SK98LIN_NAPI if (netif_rx_schedule_prep(pAC->dev[0])) { pAC->GIni.GIValIrqMask &= ~(Y2_IS_STAT_BMU); SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask); SetIntMask = SK_TRUE; __netif_rx_schedule(pAC->dev[0]); } if (netif_rx_schedule_prep(pAC->dev[1])) { if (!SetIntMask) { pAC->GIni.GIValIrqMask &= ~(Y2_IS_STAT_BMU); SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask); } __netif_rx_schedule(pAC->dev[1]); } #else handledStatLE = HandleStatusLEs(pAC); #endif /* ** Check for Special Interrupts */ if ((IntSrc & ~Y2_IS_STAT_BMU) || pAC->CheckQueue || pNet->TimerExpired) { pAC->CheckQueue = SK_FALSE; spin_lock_irqsave(&pAC->SlowPathLock, Flags); SkGeSirqIsr(pAC, pAC->IoBase, IntSrc); SkEventDispatcher(pAC, pAC->IoBase); spin_unlock_irqrestore(&pAC->SlowPathLock, Flags); } /* Speed enhancement for a2 chipsets */ if (HW_FEATURE(pAC, HWF_WA_DEV_42)) { spin_lock_irqsave(&pAC->SetPutIndexLock, Flags); SkGeY2SetPutIndex(pAC, pAC->IoBase, Y2_PREF_Q_ADDR(Q_XA1,0), &pAC->TxPort[0][0].TxALET); SkGeY2SetPutIndex(pAC, pAC->IoBase, Y2_PREF_Q_ADDR(Q_R1,0), &pAC->RxPort[0].RxLET); spin_unlock_irqrestore(&pAC->SetPutIndexLock, Flags); } /* ** Reenable interrupts and signal end of ISR */ SK_OUT32(pAC->IoBase, B0_Y2_SP_ICR, 2); /* ** Stop and restart TX timer in case a Status LE was handled */ #ifndef CONFIG_SK98LIN_NAPI if ((HW_FEATURE(pAC, HWF_WA_DEV_43_418)) && (handledStatLE)) { SK_OUT8(pAC->IoBase, STAT_TX_TIMER_CTRL, TIM_STOP); SK_OUT8(pAC->IoBase, STAT_TX_TIMER_CTRL, TIM_START); } #endif if (!(IS_Q_EMPTY(&(pAC->TxPort[0][TX_PRIO_LOW].TxAQ_waiting)))) { GiveTxBufferToHw(pAC, pAC->IoBase, 0); } if (!(IS_Q_EMPTY(&(pAC->TxPort[1][TX_PRIO_LOW].TxAQ_waiting)))) { GiveTxBufferToHw(pAC, pAC->IoBase, 1); } SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC, ("<== SkY2Isr\n")); return; } /* SkY2Isr */ /***************************************************************************** * * SkY2Xmit - Linux frame transmit function for Yukon2 * * Description: * The system calls this function to send frames onto the wire. * It puts the frame in the tx descriptor ring. If the ring is * full then, the 'tbusy' flag is set. * * Returns: * 0, if everything is ok * !=0, on error * * WARNING: * returning 1 in 'tbusy' case caused system crashes (double * allocated skb's) !!! */ int SkY2Xmit( struct sk_buff *skb, /* socket buffer to be sent */ struct SK_NET_DEVICE *dev) /* via which device? */ { DEV_NET *pNet = (DEV_NET*) dev->priv; SK_AC *pAC = pNet->pAC; SK_U8 FragIdx = 0; SK_PACKET *pSkPacket; #if 0 /* uboot */ SK_FRAG *PrevFrag; SK_FRAG *CurrFrag; #endif SK_PKT_QUEUE *pWorkQueue; /* corresponding TX queue */ SK_PKT_QUEUE *pWaitQueue; SK_PKT_QUEUE *pFreeQueue; SK_LE_TABLE *pLETab; /* corresponding LETable */ #if 0 /* uboot */ skb_frag_t *sk_frag; #endif SK_U64 PhysAddr; unsigned long Flags; unsigned int Port; #if 0 /* uboot */ int CurrFragCtr; #endif SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("==> SkY2Xmit\n")); /* ** Get port and return if no free packet is available */ Port = (pAC->RlmtNets == 2) ? pNet->PortNr : pAC->ActivePort; if (IS_Q_EMPTY(&(pAC->TxPort[Port][TX_PRIO_LOW].TxQ_free))) { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS | SK_DBGCAT_DRV_ERROR, ("Not free packets available for send\n")); return 1; /* zero bytes sent! */ } /* ** Put any new packet to be sent in the waiting queue and ** handle also any possible fragment of that packet. */ pWorkQueue = &(pAC->TxPort[Port][TX_PRIO_LOW].TxAQ_working); pWaitQueue = &(pAC->TxPort[Port][TX_PRIO_LOW].TxAQ_waiting); pFreeQueue = &(pAC->TxPort[Port][TX_PRIO_LOW].TxQ_free); pLETab = &(pAC->TxPort[Port][TX_PRIO_LOW].TxALET); #if 0 /* uboot */ /* ** Normal send operations require only one fragment, because ** only one sk_buff data area is passed. ** In contradiction to this, scatter-gather (zerocopy) send ** operations might pass one or more additional fragments ** where each fragment needs a separate fragment info packet. */ if (((skb_shinfo(skb)->nr_frags + 1) * MAX_FRAG_OVERHEAD) > NUM_FREE_LE_IN_TABLE(pLETab)) { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS | SK_DBGCAT_DRV_ERROR, ("Not enough LE available for send\n")); return 1; /* zero bytes sent! */ } if ((skb_shinfo(skb)->nr_frags + 1) > MAX_NUM_FRAGS) { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS | SK_DBGCAT_DRV_ERROR, ("Not even one fragment available for send\n")); return 1; /* zero bytes sent! */ } #endif /* ** Get first packet from free packet queue */ POP_FIRST_PKT_FROM_QUEUE(pFreeQueue, pSkPacket); if(pSkPacket == NULL) { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS | SK_DBGCAT_DRV_ERROR, ("Could not obtain free packet used for xmit\n")); return 1; /* zero bytes sent! */ } pSkPacket->pFrag = &(pSkPacket->FragArray[FragIdx]); /* ** map the sk_buff to be available for the adapter */ #if 0 /* uboot */ PhysAddr = (SK_U64) pci_map_page(pAC->PciDev, virt_to_page(skb->data), ((unsigned long) skb->data & ~PAGE_MASK), skb_headlen(skb), PCI_DMA_TODEVICE); #else PhysAddr = (SK_U64)(SK_U32)skb->data; #endif pSkPacket->pMBuf = skb; pSkPacket->pFrag->pPhys = PhysAddr; pSkPacket->pFrag->FragLen = skb->len;/*skb_headlen(skb);*/ pSkPacket->pFrag->pNext = NULL; /* initial has no next default */ pSkPacket->NumFrags = 2; /*skb_shinfo(skb)->nr_frags + 1;*/ #if 0 pSkPacket->NumFrags = skb_shinfo(skb)->nr_frags + 1; PrevFrag = pSkPacket->pFrag; /* ** Each scatter-gather fragment need to be mapped... */ for ( CurrFragCtr = 0; CurrFragCtr < skb_shinfo(skb)->nr_frags; CurrFragCtr++) { FragIdx++; sk_frag = &skb_shinfo(skb)->frags[CurrFragCtr]; CurrFrag = &(pSkPacket->FragArray[FragIdx]); /* ** map the sk_buff to be available for the adapter */ PhysAddr = (SK_U64) pci_map_page(pAC->PciDev, sk_frag->page, sk_frag->page_offset, sk_frag->size, PCI_DMA_TODEVICE); CurrFrag->pPhys = PhysAddr; CurrFrag->FragLen = sk_frag->size; CurrFrag->pNext = NULL; /* ** Add the new fragment to the list of fragments */ PrevFrag->pNext = CurrFrag; PrevFrag = CurrFrag; } #endif /* ** Add packet to waiting packets queue */ PUSH_PKT_AS_LAST_IN_QUEUE(pWaitQueue, pSkPacket); GiveTxBufferToHw(pAC, pAC->IoBase, Port); #if 0 /* uboot */ dev->trans_start = jiffies; #endif SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("<== SkY2Xmit(return 0)\n")); return (0); } /* SkY2Xmit */ #ifdef CONFIG_SK98LIN_NAPI /***************************************************************************** * * SkY2Poll - NAPI Rx polling callback for Yukon2 chipsets * * Description: * Called by the Linux system in case NAPI polling is activated * * Returns * The number of work data still to be handled * * Notes * The slowpath lock needs to be set because HW accesses may * interfere with slowpath events (e.g. TWSI) */ int SkY2Poll( struct net_device *dev, /* device that needs to be polled */ int *budget) /* how many budget do we have? */ { SK_AC *pAC = ((DEV_NET*)(dev->priv))->pAC; int WorkToDo = min(*budget, dev->quota); int WorkDone = 0; SK_BOOL handledStatLE = SK_FALSE; unsigned long Flags; spin_lock_irqsave(&pAC->SlowPathLock, Flags); handledStatLE = HandleStatusLEs(pAC, &WorkDone, WorkToDo); *budget -= WorkDone; dev->quota -= WorkDone; if(WorkDone < WorkToDo) { netif_rx_complete(dev); pAC->GIni.GIValIrqMask |= (Y2_IS_STAT_BMU); SK_OUT32(pAC->IoBase, B0_IMSK, pAC->GIni.GIValIrqMask); if ((HW_FEATURE(pAC, HWF_WA_DEV_43_418)) && (handledStatLE)) { SK_OUT8(pAC->IoBase, STAT_TX_TIMER_CTRL, TIM_STOP); SK_OUT8(pAC->IoBase, STAT_TX_TIMER_CTRL, TIM_START); } } spin_unlock_irqrestore(&pAC->SlowPathLock, Flags); return (WorkDone >= WorkToDo); } /* SkY2Poll */ #endif /****************************************************************************** * * SkY2PortStop - stop a port on Yukon2 * * Description: * This function stops a port of the Yukon2 chip. This stop * stop needs to be performed in a specific order: * * a) Stop the Prefetch unit * b) Stop the Port (MAC, PHY etc.) * * Returns: N/A */ void SkY2PortStop( SK_AC *pAC, /* adapter control context */ SK_IOC IoC, /* I/O control context (address of adapter registers) */ int Port, /* port to stop (MAC_1 + n) */ int Dir, /* StopDirection (SK_STOP_RX, SK_STOP_TX, SK_STOP_ALL) */ int RstMode) /* Reset Mode (SK_SOFT_RST, SK_HARD_RST) */ { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MSG, ("==> SkY2PortStop (Port %c)\n", 'A' + Port)); /* ** Stop the HW */ SkGeStopPort(pAC, IoC, Port, Dir, RstMode); /* ** Move any TX packet from work queues into the free queue again ** and initialize the TX LETable variables */ SkY2FreeTxBuffers(pAC, pAC->IoBase, Port); pAC->TxPort[Port][TX_PRIO_LOW].TxALET.Bmu.RxTx.TcpWp = 0; pAC->TxPort[Port][TX_PRIO_LOW].TxALET.Bmu.RxTx.MssValue = 0; pAC->TxPort[Port][TX_PRIO_LOW].TxALET.BufHighAddr = 0; pAC->TxPort[Port][TX_PRIO_LOW].TxALET.Done = 0; pAC->TxPort[Port][TX_PRIO_LOW].TxALET.Put = 0; // pAC->GIni.GP[Port].PState = SK_PRT_STOP; /* ** Move any RX packet from work queue into the waiting queue ** and initialize the RX LETable variables */ SkY2FreeRxBuffers(pAC, pAC->IoBase, Port); pAC->RxPort[Port].RxLET.BufHighAddr = 0; SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MSG, ("<== SkY2PortStop()\n")); } /****************************************************************************** * * SkY2PortStart - start a port on Yukon2 * * Description: * This function starts a port of the Yukon2 chip. This start * action needs to be performed in a specific order: * * a) Initialize the LET indices (PUT/GET to 0) * b) Initialize the LET in HW (enables also prefetch unit) * c) Move all RX buffers from waiting queue to working queue * which involves also setting up of RX list elements * d) Initialize the FIFO settings of Yukon2 (Watermark etc.) * e) Initialize the Port (MAC, PHY etc.) * f) Initialize the MC addresses * * Returns: N/A */ void SkY2PortStart( SK_AC *pAC, /* adapter control context */ SK_IOC IoC, /* I/O control context (address of adapter registers) */ int Port) /* port to start */ { // SK_GEPORT *pPrt = &pAC->GIni.GP[Port]; SK_HWLE *pLE; SK_U32 DWord; SK_U32 PrefetchReg; /* register for Put index */ SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MSG, ("==> SkY2PortStart (Port %c)\n", 'A' + Port)); /* ** Initialize the LET indices */ pAC->RxPort[Port].RxLET.Done = 0; pAC->RxPort[Port].RxLET.Put = 0; pAC->RxPort[Port].RxLET.HwPut = 0; pAC->TxPort[Port][TX_PRIO_LOW].TxALET.Done = 0; pAC->TxPort[Port][TX_PRIO_LOW].TxALET.Put = 0; pAC->TxPort[Port][TX_PRIO_LOW].TxALET.HwPut = 0; if (HW_SYNC_TX_SUPPORTED(pAC)) { pAC->TxPort[Port][TX_PRIO_LOW].TxSLET.Done = 0; pAC->TxPort[Port][TX_PRIO_LOW].TxSLET.Put = 0; pAC->TxPort[Port][TX_PRIO_LOW].TxSLET.HwPut = 0; } if (HW_FEATURE(pAC, HWF_WA_DEV_420)) { /* ** It might be that we have to limit the RX buffers ** effectively passed to HW. Initialize the start ** value in that case... */ NbrRxBuffersInHW = 0; } /* ** TODO on dual net adapters we need to check if ** StatusLETable need to be set... ** ** pAC->StatusLETable.Done = 0; ** pAC->StatusLETable.Put = 0; ** pAC->StatusLETable.HwPut = 0; ** SkGeY2InitPrefetchUnit(pAC, pAC->IoBase, Q_ST, &pAC->StatusLETable); */ /* ** Initialize the LET in HW (enables also prefetch unit) */ SkGeY2InitPrefetchUnit(pAC, IoC,(Port == 0) ? Q_R1 : Q_R2, &pAC->RxPort[Port].RxLET); SkGeY2InitPrefetchUnit( pAC, IoC,(Port == 0) ? Q_XA1 : Q_XA2, &pAC->TxPort[Port][TX_PRIO_LOW].TxALET); if (HW_SYNC_TX_SUPPORTED(pAC)) { SkGeY2InitPrefetchUnit( pAC, IoC, (Port == 0) ? Q_XS1 : Q_XS2, &pAC->TxPort[Port][TX_PRIO_HIGH].TxSLET); } /* ** Using new values for the watermarks and the timer for ** low latency optimization */ if (pAC->LowLatency) { SK_OUT8(IoC, STAT_FIFO_WM, 1); SK_OUT8(IoC, STAT_FIFO_ISR_WM, 1); SK_OUT32(IoC, STAT_LEV_TIMER_INI, 50); SK_OUT32(IoC, STAT_ISR_TIMER_INI, 10); } /* ** Initialize the Port (MAC, PHY etc.) */ if (SkGeInitPort(pAC, IoC, Port)) { if (Port == 0) { printk("%s: SkGeInitPort A failed.\n",pAC->dev[0]->name); } else { printk("%s: SkGeInitPort B failed.\n",pAC->dev[1]->name); } } if (IS_GMAC(pAC)) { /* disable Rx GMAC FIFO Flush Mode */ SK_OUT8(IoC, MR_ADDR(Port, RX_GMF_CTRL_T), (SK_U8) GMF_RX_F_FL_OFF); } /* ** Initialize the MC addresses */ SkAddrMcUpdate(pAC,IoC, Port); SkMacRxTxEnable(pAC, IoC,Port); if (pAC->RxPort[Port].UseRxCsum) { SkGeRxCsum(pAC, IoC, Port, SK_TRUE); GET_RX_LE(pLE, &pAC->RxPort[Port].RxLET); RXLE_SET_STACS1(pLE, pAC->CsOfs1); RXLE_SET_STACS2(pLE, pAC->CsOfs2); RXLE_SET_CTRL(pLE, 0); RXLE_SET_OPC(pLE, OP_TCPSTART | HW_OWNER); FLUSH_OPC(pLE); if (Port == 0) { PrefetchReg=Y2_PREF_Q_ADDR(Q_R1,PREF_UNIT_PUT_IDX_REG); } else { PrefetchReg=Y2_PREF_Q_ADDR(Q_R2,PREF_UNIT_PUT_IDX_REG); } DWord = GET_PUT_IDX(&pAC->RxPort[Port].RxLET); SK_OUT32(IoC, PrefetchReg, DWord); UPDATE_HWPUT_IDX(&pAC->RxPort[Port].RxLET); } pAC->GIni.GP[Port].PState = SK_PRT_RUN; SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MSG, ("<== SkY2PortStart()\n")); } /****************************************************************************** * * Local Functions * *****************************************************************************/ /***************************************************************************** * * InitPacketQueues - initialize SW settings of packet queues * * Description: * This function will initialize the packet queues for a port. * * Returns: N/A */ static void InitPacketQueues( SK_AC *pAC, /* pointer to adapter control context */ int Port) /* index of port to be initialized */ { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_INIT, ("==> InitPacketQueues(Port %c)\n", 'A' + Port)); pAC->RxPort[Port].RxQ_working.pHead = NULL; pAC->RxPort[Port].RxQ_working.pTail = NULL; spin_lock_init(&pAC->RxPort[Port].RxQ_working.QueueLock); pAC->RxPort[Port].RxQ_waiting.pHead = NULL; pAC->RxPort[Port].RxQ_waiting.pTail = NULL; spin_lock_init(&pAC->RxPort[Port].RxQ_waiting.QueueLock); pAC->TxPort[Port][TX_PRIO_LOW].TxQ_free.pHead = NULL; pAC->TxPort[Port][TX_PRIO_LOW].TxQ_free.pTail = NULL; spin_lock_init(&pAC->TxPort[Port][TX_PRIO_LOW].TxQ_free.QueueLock); pAC->TxPort[Port][TX_PRIO_LOW].TxAQ_working.pHead = NULL; pAC->TxPort[Port][TX_PRIO_LOW].TxAQ_working.pTail = NULL; spin_lock_init(&pAC->TxPort[Port][TX_PRIO_LOW].TxAQ_working.QueueLock); pAC->TxPort[Port][TX_PRIO_LOW].TxAQ_waiting.pHead = NULL; pAC->TxPort[Port][TX_PRIO_LOW].TxAQ_waiting.pTail = NULL; spin_lock_init(&pAC->TxPort[Port][TX_PRIO_LOW].TxAQ_waiting.QueueLock); #if USE_SYNC_TX_QUEUE pAC->TxPort[Port][TX_PRIO_LOW].TxSQ_working.pHead = NULL; pAC->TxPort[Port][TX_PRIO_LOW].TxSQ_working.pTail = NULL; spin_lock_init(&pAC->TxPort[Port][TX_PRIO_LOW].TxSQ_working.QueueLock); pAC->TxPort[Port][TX_PRIO_LOW].TxSQ_waiting.pHead = NULL; pAC->TxPort[Port][TX_PRIO_LOW].TxSQ_waiting.pTail = NULL; spin_lock_init(&pAC->TxPort[Port][TX_PRIO_LOW].TxSQ_waiting.QueueLock); #endif SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_INIT, ("<== InitPacketQueues(Port %c)\n", 'A' + Port)); } /* InitPacketQueues */ /***************************************************************************** * * GiveTxBufferToHw - commits a previously allocated DMA area to HW * * Description: * This functions gives transmit buffers to HW. If no list elements * are available the buffers will be queued. * * Notes: * This function can run only once in a system at one time. * * Returns: N/A */ static void GiveTxBufferToHw( SK_AC *pAC, /* pointer to adapter control context */ SK_IOC IoC, /* I/O control context (address of registers) */ int Port) /* port index for which the buffer is used */ { SK_HWLE *pLE; SK_PACKET *pSkPacket; SK_FRAG *pFrag; SK_PKT_QUEUE *pWorkQueue; /* corresponding TX queue */ SK_PKT_QUEUE *pWaitQueue; SK_LE_TABLE *pLETab; /* corresponding LETable */ SK_BOOL SetOpcodePacketFlag; SK_U32 HighAddress; SK_U32 LowAddress; #if 0 //uboot SK_U16 TcpSumStart; SK_U16 TcpSumWrite; #endif SK_U8 OpCode; SK_U8 Ctrl; unsigned long Flags; unsigned long LockFlag; #if 0 //uboot int Protocol; #endif #ifdef NETIF_F_TSO SK_U16 Mss; int TcpOptLen; int IpTcpLen; #endif SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("==> GiveTxBufferToHw\n")); if (IS_Q_EMPTY(&(pAC->TxPort[Port][TX_PRIO_LOW].TxAQ_waiting))) { return; } spin_lock_irqsave(&pAC->TxQueueLock, LockFlag); /* ** Initialize queue settings */ pWorkQueue = &(pAC->TxPort[Port][TX_PRIO_LOW].TxAQ_working); pWaitQueue = &(pAC->TxPort[Port][TX_PRIO_LOW].TxAQ_waiting); pLETab = &(pAC->TxPort[Port][TX_PRIO_LOW].TxALET); POP_FIRST_PKT_FROM_QUEUE(pWaitQueue, pSkPacket); while (pSkPacket != NULL) { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("\tWe have a packet to send %p\n", pSkPacket)); /* ** the first frag of a packet gets opcode OP_PACKET */ SetOpcodePacketFlag = SK_TRUE; pFrag = pSkPacket->pFrag; /* ** fill list elements with data from fragments */ while (pFrag != NULL) { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("\tGet LE\n")); #ifdef NETIF_F_TSO Mss = skb_shinfo(pSkPacket->pMBuf)->tso_size; if (Mss) { TcpOptLen = ((pSkPacket->pMBuf->h.th->doff - 5) * 4); IpTcpLen = ((pSkPacket->pMBuf->nh.iph->ihl * 4) + sizeof(struct tcphdr)); Mss += (TcpOptLen + IpTcpLen + C_LEN_ETHERMAC_HEADER); } if (pLETab->Bmu.RxTx.MssValue != Mss) { pLETab->Bmu.RxTx.MssValue = Mss; /* Take a new LE for TSO from the table */ GET_TX_LE(pLE, pLETab); #if 0 if(pSkPacket->VlanId) { TXLE_SET_OPC(pLE, OP_LRGLENVLAN | HW_OWNER); TXLE_SET_VLAN(pLE, pSkPacket->VlanId); pSkPacket->VlanId = 0; Ctrl |= INS_VLAN; } else { #endif TXLE_SET_OPC(pLE, OP_LRGLEN | HW_OWNER); #if 0 } #endif /* set maximum segment size for new packet */ TXLE_SET_LSLEN(pLE, pLETab->Bmu.RxTx.MssValue); FLUSH_OPC(pLE) ; } #endif GET_TX_LE(pLE, pLETab); Ctrl = 0; SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("\tGot empty LE %p idx %d\n", pLE, GET_PUT_IDX(pLETab))); SK_DBG_DUMP_TX_LE(pLE); LowAddress = (SK_U32) (pFrag->pPhys & 0xffffffff); HighAddress = (SK_U32) (pFrag->pPhys >> 32); if (HighAddress != pLETab->BufHighAddr) { /* set opcode high part of the address in one LE */ OpCode = OP_ADDR64 | HW_OWNER; /* Set now the 32 high bits of the address */ TXLE_SET_ADDR( pLE, HighAddress); /* Set the opcode into the LE */ TXLE_SET_OPC(pLE, OpCode); /* Flush the LE to memory */ FLUSH_OPC(pLE); /* remember the HighAddress we gave to the Hardware */ pLETab->BufHighAddr = HighAddress; /* get a new LE because we filled one with high address */ GET_TX_LE(pLE, pLETab); } #if 0 /* uboot */ /* ** TCP checksum offload */ if ((pSkPacket->pMBuf->ip_summed == CHECKSUM_HW) && (SetOpcodePacketFlag == SK_TRUE)) { Protocol = ((SK_U8)pSkPacket->pMBuf->data[C_OFFSET_IPPROTO] & 0xff); /* if (Protocol & C_PROTO_ID_IP) { Ctrl = 0; } */ if (Protocol & C_PROTO_ID_TCP) { Ctrl = CALSUM | WR_SUM | INIT_SUM | LOCK_SUM; /* TCP Checksum Calculation Start Position */ TcpSumStart = C_LEN_ETHERMAC_HEADER + IP_HDR_LEN; /* TCP Checksum Write Position */ TcpSumWrite = TcpSumStart + TCP_CSUM_OFFS; } else { Ctrl = UDPTCP | CALSUM | WR_SUM | INIT_SUM | LOCK_SUM; /* TCP Checksum Calculation Start Position */ TcpSumStart = ETHER_MAC_HDR_LEN + IP_HDR_LEN; /* UDP Checksum Write Position */ TcpSumWrite = TcpSumStart + UDP_CSUM_OFFS; } if ((Ctrl) && (pLETab->Bmu.RxTx.TcpWp != TcpSumWrite)) { /* Update the last value of the write position */ pLETab->Bmu.RxTx.TcpWp = TcpSumWrite; /* Set the Lock field for this LE: */ /* Checksum calculation for one packet only */ TXLE_SET_LCKCS(pLE, 1); /* Set the start position for checksum. */ TXLE_SET_STACS(pLE, TcpSumStart); /* Set the position where the checksum will be writen */ TXLE_SET_WRICS(pLE, TcpSumWrite); /* Set the initial value for checksum */ /* PseudoHeader CS passed from Linux -> 0! */ TXLE_SET_INICS(pLE, 0); /* Set the opcode for tcp checksum */ TXLE_SET_OPC(pLE, OP_TCPLISW | HW_OWNER); /* Flush the LE to memory */ FLUSH_OPC(pLE); /* get a new LE because we filled one with data for checksum */ GET_TX_LE(pLE, pLETab); } } /* end TCP offload handling */ #endif TXLE_SET_ADDR(pLE, LowAddress); TXLE_SET_LEN(pLE, pFrag->FragLen); if (SetOpcodePacketFlag){ #ifdef NETIF_F_TSO if (Mss) { OpCode = OP_LARGESEND | HW_OWNER; } else { #endif OpCode = OP_PACKET| HW_OWNER; #ifdef NETIF_F_TSO } #endif SetOpcodePacketFlag = SK_FALSE; } else { /* Follow packet in a sequence has always OP_BUFFER */ OpCode = OP_BUFFER | HW_OWNER; } /* Check if the low address is near the upper limit. */ CHECK_LOW_ADDRESS(pLETab->BufHighAddr, LowAddress, pFrag->FragLen); pFrag = pFrag->pNext; if (pFrag == NULL) { /* mark last fragment */ Ctrl |= EOP; } TXLE_SET_CTRL(pLE, Ctrl); TXLE_SET_OPC(pLE, OpCode); FLUSH_OPC(pLE); SK_DBG_DUMP_TX_LE(pLE); } /* ** Remember next LE for tx complete */ pSkPacket->NextLE = GET_PUT_IDX(pLETab); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("\tNext LE for pkt %p is %d\n", pSkPacket, pSkPacket->NextLE)); /* ** Add packet to working packets queue */ PUSH_PKT_AS_LAST_IN_QUEUE(pWorkQueue, pSkPacket); /* ** give transmit start command */ if (HW_FEATURE(pAC, HWF_WA_DEV_42)) { spin_lock(&pAC->SetPutIndexLock); SkGeY2SetPutIndex(pAC, pAC->IoBase, Y2_PREF_Q_ADDR(Q_XA1,0), &pAC->TxPort[0][0].TxALET); spin_unlock(&pAC->SetPutIndexLock); } else { /* write put index */ if (Port == 0) { SK_OUT32(pAC->IoBase, Y2_PREF_Q_ADDR(Q_XA1,PREF_UNIT_PUT_IDX_REG), GET_PUT_IDX(&pAC->TxPort[0][0].TxALET)); UPDATE_HWPUT_IDX(&pAC->TxPort[0][0].TxALET); } else { SK_OUT32(pAC->IoBase, Y2_PREF_Q_ADDR(Q_XA2, PREF_UNIT_PUT_IDX_REG), GET_PUT_IDX(&pAC->TxPort[1][0].TxALET)); UPDATE_HWPUT_IDX(&pAC->TxPort[1][0].TxALET); } } if (IS_Q_EMPTY(&(pAC->TxPort[Port][TX_PRIO_LOW].TxAQ_waiting))) { break; /* get out of while */ } POP_FIRST_PKT_FROM_QUEUE(pWaitQueue, pSkPacket); } /* while (pSkPacket != NULL) */ spin_unlock_irqrestore(&pAC->TxQueueLock, LockFlag); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("<== GiveTxBufferToHw\n")); return; } /* GiveTxBufferToHw */ /*********************************************************************** * * GiveRxBufferToHw - commits a previously allocated DMA area to HW * * Description: * This functions gives receive buffers to HW. If no list elements * are available the buffers will be queued. * * Notes: * This function can run only once in a system at one time. * * Returns: N/A */ static void GiveRxBufferToHw( SK_AC *pAC, /* pointer to adapter control context */ SK_IOC IoC, /* I/O control context (address of registers) */ int Port, /* port index for which the buffer is used */ SK_PACKET *pPacket) /* receive buffer(s) */ { SK_HWLE *pLE; SK_LE_TABLE *pLETab; SK_BOOL Done = SK_FALSE; /* at least on LE changed? */ SK_U32 LowAddress; SK_U32 HighAddress; SK_U32 PrefetchReg; /* register for Put index */ unsigned NumFree; unsigned Required; unsigned long Flags; SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("==> GiveRxBufferToHw(Port %c, Packet %p)\n", 'A' + Port, pPacket)); pLETab = &pAC->RxPort[Port].RxLET; if (Port == 0) { PrefetchReg = Y2_PREF_Q_ADDR(Q_R1, PREF_UNIT_PUT_IDX_REG); } else { PrefetchReg = Y2_PREF_Q_ADDR(Q_R2, PREF_UNIT_PUT_IDX_REG); } if (pPacket != NULL) { /* ** For the time being, we have only one packet passed ** to this function which might be changed in future! */ PUSH_PKT_AS_LAST_IN_QUEUE(&pAC->RxPort[Port].RxQ_waiting, pPacket); } /* ** now pPacket contains the very first waiting packet */ POP_FIRST_PKT_FROM_QUEUE(&pAC->RxPort[Port].RxQ_waiting, pPacket); while (pPacket != NULL) { if (HW_FEATURE(pAC, HWF_WA_DEV_420)) { if (NbrRxBuffersInHW >= MAX_NBR_RX_BUFFERS_IN_HW) { PUSH_PKT_AS_FIRST_IN_QUEUE(&pAC->RxPort[Port].RxQ_waiting, pPacket); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("<== GiveRxBufferToHw()\n")); return; } NbrRxBuffersInHW++; } SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("Try to add packet %p\n", pPacket)); /* ** Check whether we have enough listelements: ** ** we have to take into account that each fragment ** may need an additional list element for the high ** part of the address here I simplified it by ** using MAX_FRAG_OVERHEAD maybe it's worth to split ** this constant for Rx and Tx or to calculate the ** real number of needed LE's */ SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("\tNum %d Put %d Done %d Free %d %d\n", pLETab->Num, pLETab->Put, pLETab->Done, NUM_FREE_LE_IN_TABLE(pLETab), (NUM_FREE_LE_IN_TABLE(pLETab)))); Required = pPacket->NumFrags + MAX_FRAG_OVERHEAD; NumFree = NUM_FREE_LE_IN_TABLE(pLETab); if (NumFree) { NumFree--; } if (Required > NumFree ) { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS | SK_DBGCAT_DRV_ERROR, ("\tOut of LEs have %d need %d\n", NumFree, Required)); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("\tWaitQueue starts with packet %p\n", pPacket)); PUSH_PKT_AS_FIRST_IN_QUEUE(&pAC->RxPort[Port].RxQ_waiting, pPacket); if (Done) { /* ** write Put index to BMU or Polling Unit and make the LE's ** available for the hardware */ SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("\tWrite new Put Idx\n")); SK_OUT32(IoC, PrefetchReg, GET_PUT_IDX(pLETab)); UPDATE_HWPUT_IDX(pLETab); } SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("<== GiveRxBufferToHw()\n")); return; } else { if (!AllocAndMapRxBuffer(pAC, pPacket, Port)) { /* ** Failure while allocating sk_buff might ** be due to temporary short of resources ** Maybe next time buffers are available. ** Until this, the packet remains in the ** RX waiting queue... */ SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS | SK_DBGCAT_DRV_ERROR, ("Failed to allocate Rx buffer\n")); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("WaitQueue starts with packet %p\n", pPacket)); PUSH_PKT_AS_FIRST_IN_QUEUE(&pAC->RxPort[Port].RxQ_waiting, pPacket); if (Done) { /* ** write Put index to BMU or Polling ** Unit and make the LE's ** available for the hardware */ SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("\tWrite new Put Idx\n")); SK_OUT32(IoC, PrefetchReg, GET_PUT_IDX(pLETab)); UPDATE_HWPUT_IDX(pLETab); } SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("<== GiveRxBufferToHw()\n")); return; } } Done = SK_TRUE; LowAddress = (SK_U32) (pPacket->pFrag->pPhys & 0xffffffff); HighAddress = (SK_U32) (pPacket->pFrag->pPhys >> 32); if (HighAddress != pLETab->BufHighAddr) { /* get a new LE for high address */ GET_RX_LE(pLE, pLETab); /* Set now the 32 high bits of the address */ RXLE_SET_ADDR(pLE, HighAddress); /* Set the control bits of the address */ RXLE_SET_CTRL(pLE, 0); /* Set the opcode into the LE */ RXLE_SET_OPC(pLE, (OP_ADDR64 | HW_OWNER)); /* Flush the LE to memory */ FLUSH_OPC(pLE); /* remember the HighAddress we gave to the Hardware */ pLETab->BufHighAddr = HighAddress; } /* ** Fill data into listelement */ GET_RX_LE(pLE, pLETab); RXLE_SET_ADDR(pLE, LowAddress); RXLE_SET_LEN(pLE, pPacket->pFrag->FragLen); RXLE_SET_CTRL(pLE, 0); RXLE_SET_OPC(pLE, (OP_PACKET | HW_OWNER)); FLUSH_OPC(pLE); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("=== LE filled\n")); SK_DBG_DUMP_RX_LE(pLE); /* ** Remember next LE for rx complete */ pPacket->NextLE = GET_PUT_IDX(pLETab); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("\tPackets Next LE is %d\n", pPacket->NextLE)); /* ** Add packet to working receive buffer queue and get ** any next packet out of the waiting queue */ PUSH_PKT_AS_LAST_IN_QUEUE(&pAC->RxPort[Port].RxQ_working, pPacket); if (IS_Q_EMPTY(&(pAC->RxPort[Port].RxQ_waiting))) { break; /* get out of while processing */ } POP_FIRST_PKT_FROM_QUEUE(&pAC->RxPort[Port].RxQ_waiting, pPacket); } SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("\tWaitQueue is empty\n")); if (Done) { /* ** write Put index to BMU or Polling Unit and make the LE's ** available for the hardware */ SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("\tWrite new Put Idx\n")); /* Speed enhancement for a2 chipsets */ if (HW_FEATURE(pAC, HWF_WA_DEV_42)) { spin_lock_irqsave(&pAC->SetPutIndexLock, Flags); SkGeY2SetPutIndex(pAC, pAC->IoBase, Y2_PREF_Q_ADDR(Q_R1,0), pLETab); spin_unlock_irqrestore(&pAC->SetPutIndexLock, Flags); } else { /* write put index */ if (Port == 0) { SK_OUT32(IoC, Y2_PREF_Q_ADDR(Q_R1, PREF_UNIT_PUT_IDX_REG), GET_PUT_IDX(pLETab)); } else { SK_OUT32(IoC, Y2_PREF_Q_ADDR(Q_R2, PREF_UNIT_PUT_IDX_REG), GET_PUT_IDX(pLETab)); } /* Update put index */ UPDATE_HWPUT_IDX(pLETab); } } SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("<== GiveRxBufferToHw()\n")); } /* GiveRxBufferToHw */ /*********************************************************************** * * FillReceiveTableYukon2 - map any waiting RX buffers to HW * * Description: * If the list element table contains more empty elements than * specified this function tries to refill them. * * Notes: * This function can run only once per port in a system at one time. * * Returns: N/A */ void FillReceiveTableYukon2( SK_AC *pAC, /* pointer to adapter control context */ SK_IOC IoC, /* I/O control context */ int Port) /* port index of RX */ { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("==> FillReceiveTableYukon2 (Port %c)\n", 'A' + Port)); if (NUM_FREE_LE_IN_TABLE(&pAC->RxPort[Port].RxLET) > pAC->MaxUnusedRxLeWorking) { /* ** Give alle waiting receive buffers down ** The queue holds all RX packets that ** need a fresh allocation of the sk_buff. */ if (pAC->RxPort[Port].RxQ_waiting.pHead != NULL) { SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("Waiting queue is not empty -> give it to HW")); GiveRxBufferToHw(pAC, IoC, Port, NULL); } } SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("<== FillReceiveTableYukon2 ()\n")); } /* FillReceiveTableYukon2 */ /****************************************************************************** * * * HandleReceives - will pass any ready RX packet to kernel * * Description: * This functions handles a received packet. It checks wether it is * valid, updates the receive list element table and gives the receive * buffer to Linux * * Notes: * This function can run only once per port at one time in the system. * * Returns: N/A */ static SK_BOOL HandleReceives( SK_AC *pAC, /* adapter control context */ int Port, /* port on which a packet has been received */ SK_U16 Len, /* number of bytes which was actually received */ SK_U32 FrameStatus, /* MAC frame status word */ SK_U16 Tcp1, /* first hw checksum */ SK_U16 Tcp2, /* second hw checksum */ SK_U32 Tist, /* timestamp */ SK_U16 Vlan) /* Vlan Id */ { SK_PACKET *pSkPacket; SK_LE_TABLE *pLETab; SK_MBUF *pRlmtMbuf; /* buffer for giving RLMT frame */ struct sk_buff *pMsg; /* ptr to message holding frame */ #ifdef __ia64__ struct sk_buff *pNewMsg; /* used when IP aligning */ #endif #ifdef CONFIG_SK98LIN_NAPI SK_BOOL SlowPathLock = SK_FALSE; #else SK_BOOL SlowPathLock = SK_TRUE; #endif SK_BOOL IsGoodPkt; SK_BOOL IsBc; SK_BOOL IsMc; SK_EVPARA EvPara; /* an event parameter union */ SK_I16 LenToFree; /* must be signed integer */ unsigned long Flags; /* for spin lock */ unsigned int RlmtNotifier; #if 0 /* uboot */ unsigned short Type; int IpFrameLength; #endif int FrameLength; /* total length of recvd frame */ int NumBytes; #if 0 int Result; #endif int Offset = 0; #ifdef Y2_SYNC_CHECK #if 0 SK_U16 MyTcp; #endif #endif SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("==> HandleReceives (Port %c)\n", 'A' + Port)); /* ** initialize vars for selected port */ pLETab = &pAC->RxPort[Port].RxLET; /* ** check whether we want to receive this packet */ SK_Y2_RXSTAT_CHECK_PKT(Len, FrameStatus, IsGoodPkt); /* ** Remember length to free (in case of RxBuffer overruns; ** unlikely, but might happen once in a while) */ LenToFree = (SK_I16) Len; /* ** maybe we put these two checks into the SK_RXDESC_CHECK_PKT macro too */ if (Len > pAC->RxPort[Port].RxBufSize) { IsGoodPkt = SK_FALSE; } /* ** take first receive buffer out of working queue */ POP_FIRST_PKT_FROM_QUEUE(&pAC->RxPort[Port].RxQ_working, pSkPacket); if (pSkPacket == NULL) { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ERROR, ("Packet not available. NULL pointer.\n")); return(SK_TRUE); } if (HW_FEATURE(pAC, HWF_WA_DEV_420)) { NbrRxBuffersInHW--; } /* ** Verify the received length of the frame! Note that having ** multiple RxBuffers being aware of one single receive packet ** (one packet spread over multiple RxBuffers) is not supported ** by this driver! */ if ((Len > pAC->RxPort[Port].RxBufSize) || (Len > (SK_U16) pSkPacket->PacketLen)) { IsGoodPkt = SK_FALSE; } /* ** Reset own bit in LE's between old and new Done index ** This is not really necessary but makes debugging easier */ CLEAR_LE_OWN_FROM_DONE_TO(pLETab, pSkPacket->NextLE); /* ** Free the list elements for new Rx buffers */ SET_DONE_INDEX(pLETab, pSkPacket->NextLE); pMsg = pSkPacket->pMBuf; FrameLength = Len; SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("Received frame of length %d on port %d\n",FrameLength, Port)); if (!IsGoodPkt) { printf("\npacket is not good\n"); /* ** release the DMA mapping */ pci_dma_sync_single(pAC->PciDev, (dma_addr_t) pSkPacket->pFrag->pPhys, pSkPacket->pFrag->FragLen, PCI_DMA_FROMDEVICE); DEV_KFREE_SKB_ANY(pSkPacket->pMBuf); PUSH_PKT_AS_LAST_IN_QUEUE(&pAC->RxPort[Port].RxQ_waiting, pSkPacket); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("<== HandleReceives (Port %c)\n", 'A' + Port)); /* ** Sanity check for RxBuffer overruns... */ LenToFree = LenToFree - (pSkPacket->pFrag->FragLen); while (LenToFree > 0) { POP_FIRST_PKT_FROM_QUEUE(&pAC->RxPort[Port].RxQ_working, pSkPacket); if (HW_FEATURE(pAC, HWF_WA_DEV_420)) { NbrRxBuffersInHW--; } CLEAR_LE_OWN_FROM_DONE_TO(pLETab, pSkPacket->NextLE); SET_DONE_INDEX(pLETab, pSkPacket->NextLE); pci_dma_sync_single(pAC->PciDev, (dma_addr_t) pSkPacket->pFrag->pPhys, pSkPacket->pFrag->FragLen, PCI_DMA_FROMDEVICE); DEV_KFREE_SKB_ANY(pSkPacket->pMBuf); PUSH_PKT_AS_LAST_IN_QUEUE(&pAC->RxPort[Port].RxQ_waiting, pSkPacket); LenToFree = LenToFree - ((SK_I16)(pSkPacket->pFrag->FragLen)); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS | SK_DBGCAT_DRV_ERROR, ("<==HandleReceives (Port %c) drop faulty len pkt(2)\n",'A'+Port)); } return(SK_TRUE); } else { /* ** Release the DMA mapping */ pci_unmap_single(pAC->PciDev, pSkPacket->pFrag->pPhys, pAC->RxPort[Port].RxBufSize, PCI_DMA_FROMDEVICE); #if 0 /* uboot */ skb_put(pMsg, FrameLength); /* set message len */ pMsg->ip_summed = CHECKSUM_NONE; /* initial default */ #ifdef Y2_SYNC_CHECK pAC->FramesWithoutSyncCheck++; if (pAC->FramesWithoutSyncCheck > Y2_RESYNC_WATERMARK) { if ((Tcp1 != 1) || (Tcp2 != 0)) { pAC->FramesWithoutSyncCheck = 0; MyTcp = (SK_U16) SkCsCalculateChecksum( &pMsg->data[14], FrameLength - 14); if (MyTcp != Tcp1) { /* Queue port reset event */ SkLocalEventQueue(pAC, SKGE_DRV, SK_DRV_RECOVER,Port,-1,SK_FALSE); } } } #endif #endif #if 0 /* uboot */ pMsg->ip_summed = CHECKSUM_NONE; /* initial default */ if (pAC->RxPort[Port].UseRxCsum) { Type = ntohs(*((short*)&pMsg->data[12])); if (Type == 0x800) { *((char *)&(IpFrameLength)) = pMsg->data[16]; *(((char *)&(IpFrameLength))+1) = pMsg->data[17]; IpFrameLength = ntohs(IpFrameLength); HeaderLength = FrameLength - IpFrameLength; if (HeaderLength == 0xe) { Result = SkCsGetReceiveInfo(pAC,&pMsg->data[14],Tcp1,Tcp2, Port); if ((Result == SKCS_STATUS_IP_FRAGMENT) || (Result == SKCS_STATUS_IP_CSUM_OK) || (Result == SKCS_STATUS_TCP_CSUM_OK) || (Result == SKCS_STATUS_UDP_CSUM_OK)) { pMsg->ip_summed = CHECKSUM_UNNECESSARY; } else if ((Result == SKCS_STATUS_TCP_CSUM_ERROR) || (Result == SKCS_STATUS_UDP_CSUM_ERROR) || (Result == SKCS_STATUS_IP_CSUM_ERROR_UDP) || (Result == SKCS_STATUS_IP_CSUM_ERROR_TCP) || (Result == SKCS_STATUS_IP_CSUM_ERROR)) { SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS | SK_DBGCAT_DRV_ERROR, ("skge: CRC error. Frame dropped!\n")); DEV_KFREE_SKB_ANY(pMsg); PUSH_PKT_AS_LAST_IN_QUEUE(&pAC->RxPort[Port].RxQ_waiting, pSkPacket); SK_DBG_MSG(pAC,SK_DBGMOD_DRV,SK_DBGCAT_DRV_RX_PROGRESS, ("<==HandleReceives(Port %c)\n",'A'+Port)); return(SK_TRUE); } else { pMsg->ip_summed = CHECKSUM_NONE; } } /* end if (HeaderLength == valid) */ } /* end if (Type == 0x800) -> IP frame */ } /* end if (pRxPort->UseRxCsum) */ #endif SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS,("V")); RlmtNotifier = SK_RLMT_RX_PROTOCOL; IsBc = (FrameStatus & GMR_FS_BC) ? SK_TRUE : SK_FALSE; SK_RLMT_PRE_LOOKAHEAD(pAC,Port,FrameLength, IsBc,&Offset,&NumBytes); if (NumBytes != 0) { IsMc = (FrameStatus & GMR_FS_MC) ? SK_TRUE : SK_FALSE; SK_RLMT_LOOKAHEAD(pAC,Port,&pMsg->data[Offset], IsBc,IsMc,&RlmtNotifier); } if (RlmtNotifier == SK_RLMT_RX_PROTOCOL) { SK_DBG_MSG(NULL,SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS,("W")); if ((Port == pAC->ActivePort)||(pAC->RlmtNets == 2)) { /* send up only frames from active port */ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS,("U")); #ifdef xDEBUG DumpMsg(pMsg, "Rx"); #endif SK_PNMI_CNT_RX_OCTETS_DELIVERED(pAC, FrameLength, Port); #ifdef __ia64__ pNewMsg = alloc_skb(pMsg->len, GFP_ATOMIC); skb_reserve(pNewMsg, 2); /* to align IP */ SK_MEMCPY(pNewMsg->data,pMsg->data,pMsg->len); pNewMsg->ip_summed = pMsg->ip_summed; skb_put(pNewMsg, pMsg->len); DEV_KFREE_SKB_ANY(pMsg); pMsg = pNewMsg; #endif #if 0 /* uboot */ pMsg->dev = pAC->dev[Port]; pMsg->protocol = eth_type_trans(pMsg, pAC->dev[Port]); netif_rx(pMsg); pAC->dev[Port]->last_rx = jiffies; #else /* Marvell - uboot */ NetReceive(pMsg->data, FrameLength); DEV_KFREE_SKB_ANY(pMsg); #endif } else { /* drop frame */ SK_DBG_MSG(NULL,SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS,("D")); DEV_KFREE_SKB_ANY(pMsg); } } else { /* This is an RLMT-packet! */ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS,("R")); pRlmtMbuf = SkDrvAllocRlmtMbuf(pAC, pAC->IoBase, FrameLength); if (pRlmtMbuf != NULL) { pRlmtMbuf->pNext = NULL; pRlmtMbuf->Length = FrameLength; pRlmtMbuf->PortIdx = Port; EvPara.pParaPtr = pRlmtMbuf; SK_MEMCPY((char*)(pRlmtMbuf->pData), (char*)(pMsg->data),FrameLength); if (SlowPathLock == SK_TRUE) { spin_lock_irqsave(&pAC->SlowPathLock, Flags); SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_PACKET_RECEIVED, EvPara); pAC->CheckQueue = SK_TRUE; spin_unlock_irqrestore(&pAC->SlowPathLock, Flags); } else { SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_PACKET_RECEIVED, EvPara); pAC->CheckQueue = SK_TRUE; } SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS,("Q")); } #if 0 /* uboot */ if (pAC->dev[Port]->flags & (IFF_PROMISC | IFF_ALLMULTI)) { #ifdef __ia64__ pNewMsg = alloc_skb(pMsg->len, GFP_ATOMIC); skb_reserve(pNewMsg, 2); /* to align IP */ SK_MEMCPY(pNewMsg->data,pMsg->data,pMsg->len); pNewMsg->ip_summed = pMsg->ip_summed; pNewMsg->len = pMsg->len; DEV_KFREE_SKB_ANY(pMsg); pMsg = pNewMsg; #endif pMsg->dev = pAC->dev[Port]; pMsg->protocol = eth_type_trans(pMsg,pAC->dev[Port]); netif_rx(pMsg); pAC->dev[Port]->last_rx = jiffies; } else #else /* Marvell - uboot*/ if (1) { NetReceive(pMsg->data, FrameLength); DEV_KFREE_SKB_ANY(pMsg); } else #endif { DEV_KFREE_SKB_ANY(pMsg); } } /* if packet for rlmt */ PUSH_PKT_AS_LAST_IN_QUEUE(&pAC->RxPort[Port].RxQ_waiting, pSkPacket); } /* end if-else (IsGoodPkt) */ SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("<== HandleReceives (Port %c)\n", 'A' + Port)); return(SK_TRUE); } /* HandleReceives */ /*********************************************************************** * * CheckForSendComplete - Frees any freeable Tx bufffer * * Description: * This function checks the queues of a port for completed send * packets and returns these packets back to the OS. * * Notes: * This function can run simultaneously for both ports if * the OS function OSReturnPacket() can handle this, * * Such a send complete does not mean, that the packet is really * out on the wire. We just know that the adapter has copied it * into its internal memory and the buffer in the systems memory * is no longer needed. * * Returns: N/A */ static void CheckForSendComplete( SK_AC *pAC, /* pointer to adapter control context */ SK_IOC IoC, /* I/O control context */ int Port, /* port index */ SK_PKT_QUEUE *pPQ, /* tx working packet queue to check */ SK_LE_TABLE *pLETab, /* corresponding list element table */ unsigned int Done) /* done index reported for this LET */ { SK_PACKET *pSkPacket; SK_PKT_QUEUE SendCmplPktQ = { NULL, NULL /* , SPIN_LOCK_UNLOCKED uboot */}; SK_BOOL DoWakeQueue = SK_FALSE; unsigned long Flags; unsigned Put; SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("==> CheckForSendComplete(Port %c)\n", 'A' + Port)); /* ** Reset own bit in LE's between old and new Done index ** This is not really necessairy but makes debugging easier */ SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("Clear Own Bits in TxTable from %d to %d\n", pLETab->Done, (Done == 0) ? NUM_LE_IN_TABLE(pLETab) : (Done - 1))); spin_lock_irqsave(&(pPQ->QueueLock), Flags); CLEAR_LE_OWN_FROM_DONE_TO(pLETab, Done); Put = GET_PUT_IDX(pLETab); /* ** Check whether some packets have been completed */ PLAIN_POP_FIRST_PKT_FROM_QUEUE(pPQ, pSkPacket); while (pSkPacket != NULL) { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("Check Completion of Tx packet %p\n", pSkPacket)); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("Put %d NewDone %d NextLe of Packet %d\n", Put, Done, pSkPacket->NextLE)); if ((Put > Done) && ((pSkPacket->NextLE > Put) || (pSkPacket->NextLE <= Done))) { PLAIN_PUSH_PKT_AS_LAST_IN_QUEUE(&SendCmplPktQ, pSkPacket); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("Packet finished (a)\n")); } else if ((Done > Put) && (pSkPacket->NextLE > Put) && (pSkPacket->NextLE <= Done)) { PLAIN_PUSH_PKT_AS_LAST_IN_QUEUE(&SendCmplPktQ, pSkPacket); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("Packet finished (b)\n")); } else if ((Done == TXA_MAX_LE-1) && (Put == 0) && (pSkPacket->NextLE == 0)) { PLAIN_PUSH_PKT_AS_LAST_IN_QUEUE(&SendCmplPktQ, pSkPacket); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("Packet finished (b)\n")); DoWakeQueue = SK_TRUE; } else if (Done == Put) { /* all packets have been sent */ PLAIN_PUSH_PKT_AS_LAST_IN_QUEUE(&SendCmplPktQ, pSkPacket); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("Packet finished (c)\n")); } else { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("Packet not yet finished\n")); PLAIN_PUSH_PKT_AS_FIRST_IN_QUEUE(pPQ, pSkPacket); break; } PLAIN_POP_FIRST_PKT_FROM_QUEUE(pPQ, pSkPacket); } spin_unlock_irqrestore(&(pPQ->QueueLock), Flags); /* ** Set new done index in list element table */ SET_DONE_INDEX(pLETab, Done); /* ** All TX packets that are send complete should be added to ** the free queue again for new sents to come */ pSkPacket = SendCmplPktQ.pHead; while (pSkPacket != NULL) { while (pSkPacket->pFrag != NULL) { pci_unmap_page(pAC->PciDev, (dma_addr_t) pSkPacket->pFrag->pPhys, pSkPacket->pFrag->FragLen, PCI_DMA_FROMDEVICE); pSkPacket->pFrag = pSkPacket->pFrag->pNext; } DEV_KFREE_SKB_ANY(pSkPacket->pMBuf); pSkPacket->pMBuf = NULL; pSkPacket = pSkPacket->pNext; /* get next packet */ } /* ** Append the available TX packets back to free queue */ if (SendCmplPktQ.pHead != NULL) { spin_lock_irqsave(&(pAC->TxPort[Port][0].TxQ_free.QueueLock), Flags); if (pAC->TxPort[Port][0].TxQ_free.pTail != NULL) { pAC->TxPort[Port][0].TxQ_free.pTail->pNext = SendCmplPktQ.pHead; pAC->TxPort[Port][0].TxQ_free.pTail = SendCmplPktQ.pTail; if (pAC->TxPort[Port][0].TxQ_free.pHead->pNext == NULL) { netif_wake_queue(pAC->dev[Port]); } } else { pAC->TxPort[Port][0].TxQ_free.pHead = SendCmplPktQ.pHead; pAC->TxPort[Port][0].TxQ_free.pTail = SendCmplPktQ.pTail; netif_wake_queue(pAC->dev[Port]); } if (Done == Put) { netif_wake_queue(pAC->dev[Port]); } if (DoWakeQueue) { netif_wake_queue(pAC->dev[Port]); DoWakeQueue = SK_FALSE; } spin_unlock_irqrestore(&pAC->TxPort[Port][0].TxQ_free.QueueLock, Flags); } SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("<== CheckForSendComplete()\n")); return; } /* CheckForSendComplete */ /***************************************************************************** * * UnmapAndFreeTxPktBuffer * * Description: * This function free any allocated space of receive buffers * * Arguments: * pAC - A pointer to the adapter context struct. * */ static void UnmapAndFreeTxPktBuffer( SK_AC *pAC, /* pointer to adapter context */ SK_PACKET *pSkPacket, /* pointer to port struct of ring to fill */ int TxPort) /* TX port index */ { SK_FRAG *pFrag = pSkPacket->pFrag; SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("--> UnmapAndFreeTxPktBuffer\n")); while (pFrag != NULL) { pci_unmap_page(pAC->PciDev, (dma_addr_t) pFrag->pPhys, pFrag->FragLen, PCI_DMA_FROMDEVICE); pFrag = pFrag->pNext; } DEV_KFREE_SKB_ANY(pSkPacket->pMBuf); pSkPacket->pMBuf = NULL; SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS, ("<-- UnmapAndFreeTxPktBuffer\n")); } /***************************************************************************** * * HandleStatusLEs * * Description: * This function checks for any new status LEs that may have been * received. Those status LEs may either be Rx or Tx ones. * * Returns: N/A */ static SK_BOOL HandleStatusLEs( #ifdef CONFIG_SK98LIN_NAPI SK_AC *pAC, /* pointer to adapter context */ int *WorkDone, /* Done counter needed for NAPI */ int WorkToDo) /* ToDo counter for NAPI */ #else SK_AC *pAC) /* pointer to adapter context */ #endif { int DoneTxA[SK_MAX_MACS]; int DoneTxS[SK_MAX_MACS]; int Port; SK_BOOL handledStatLE = SK_FALSE; SK_BOOL NewDone = SK_FALSE; SK_HWLE *pLE; SK_U16 HighVal; SK_U32 LowVal; SK_U8 OpCode; int i; SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC, ("==> HandleStatusLEs\n")); do { if (OWN_OF_FIRST_LE(&pAC->StatusLETable) != HW_OWNER) break; SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC, ("Check next Own Bit of ST-LE[%d]: 0x%li \n", (pAC->StatusLETable.Done + 1) % NUM_LE_IN_TABLE(&pAC->StatusLETable), OWN_OF_FIRST_LE(&pAC->StatusLETable))); while (OWN_OF_FIRST_LE(&pAC->StatusLETable) == HW_OWNER) { GET_ST_LE(pLE, &pAC->StatusLETable); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC, ("Working on finished status LE[%d]:\n", GET_DONE_INDEX(&pAC->StatusLETable))); SK_DBG_DUMP_ST_LE(pLE); handledStatLE = SK_TRUE; OpCode = STLE_GET_OPC(pLE) & ~HW_OWNER; Port = STLE_GET_LINK(pLE); #ifdef USE_TIST_FOR_RESET if (SK_ADAPTER_WAITING_FOR_TIST(pAC)) { /* do we just have a tist LE ? */ if ((OpCode & OP_RXTIMESTAMP) == OP_RXTIMESTAMP) { for (i = 0; i < pAC->GIni.GIMacsFound; i++) { if (SK_PORT_WAITING_FOR_ANY_TIST(pAC, i)) { /* if a port is waiting for any tist it is done */ SK_CLR_STATE_FOR_PORT(pAC, i); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DUMP, ("Got any Tist on port %c (now 0x%X!!!)\n", 'A' + i, pAC->AdapterResetState)); } if (SK_PORT_WAITING_FOR_SPECIFIC_TIST(pAC, i)) { Y2_GET_TIST_LOW_VAL(pAC->IoBase, &LowVal); if ((pAC->MinTistHi != pAC->GIni.GITimeStampCnt) || (pAC->MinTistLo < LowVal)) { /* time is up now */ SK_CLR_STATE_FOR_PORT(pAC, i); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DUMP, ("Got expected Tist on Port %c (now 0x%X)!!!\n", 'A' + i, pAC->AdapterResetState)); #ifdef Y2_SYNC_CHECK pAC->FramesWithoutSyncCheck = Y2_RESYNC_WATERMARK; #endif } else { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DUMP, ("Got Tist %l:%l on Port %c but still waiting\n", pAC->GIni.GITimeStampCnt, pAC->MinTistLo, 'A' + i)); } } } #ifndef Y2_RECOVERY if (!SK_ADAPTER_WAITING_FOR_TIST(pAC)) { /* nobody needs tist anymore - turn it off */ Y2_DISABLE_TIST(pAC->IoBase); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DUMP, ("Turn off Tist !!!\n")); } #endif } else if (OpCode == OP_TXINDEXLE) { /* * change OpCode to notify the folowing code * to ignore the done index from this LE * unfortunately tist LEs will be generated only * for RxStat LEs * so in order to get a safe Done index for a * port currently waiting for a tist we have to * get the done index directly from the BMU */ OpCode = OP_MOD_TXINDEX; SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DUMP, ("Mark unusable TX_INDEX LE!!!\n")); } else { if (SK_PORT_WAITING_FOR_TIST(pAC, Port)) { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DUMP, ("Ignore LE 0x%X on Port %c!!!\n", OpCode, 'A' + Port)); OpCode = OP_MOD_LE; #ifdef Y2_LE_CHECK /* mark entries invalid */ pAC->LastOpc = 0xFF; pAC->LastPort = 3; #endif } } } /* if (SK_ADAPTER_WAITING_FOR_TIST(pAC)) */ #endif #ifdef Y2_LE_CHECK if (pAC->LastOpc != 0xFF) { /* last opc is valid * check if current opcode follows last opcode */ if ((((OpCode & OP_RXTIMESTAMP) == OP_RXTIMESTAMP) && (pAC->LastOpc != OP_RXSTAT)) || (((OpCode & OP_RXCHKS) == OP_RXCHKS) && (pAC->LastOpc != OP_RXTIMESTAMP)) || ((OpCode == OP_RXSTAT) && (pAC->LastOpc != OP_RXCHKS))) { /* opcode sequence broken * current LE is invalid */ if (pAC->LastOpc == OP_RXTIMESTAMP) { /* force invalid checksum */ pLE->St.StUn.StRxTCPCSum.RxTCPSum1 = 1; pLE->St.StUn.StRxTCPCSum.RxTCPSum2 = 0; OpCode = pAC->LastOpc = OP_RXCHKS; Port = pAC->LastPort; } else if (pAC->LastOpc == OP_RXCHKS) { /* force invalid frame */ Port = pAC->LastPort; pLE->St.Stat.BufLen = 64; pLE->St.StUn.StRxStatWord = GMR_FS_CRC_ERR; OpCode = pAC->LastOpc = OP_RXSTAT; #ifdef Y2_SYNC_CHECK /* force rx sync check */ pAC->FramesWithoutSyncCheck = Y2_RESYNC_WATERMARK; #endif } else if (pAC->LastOpc == OP_RXSTAT) { /* create dont care tist */ pLE->St.StUn.StRxTimeStamp = 0; OpCode = pAC->LastOpc = OP_RXTIMESTAMP; /* dont know the port yet */ } else { #ifdef DEBUG SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC, ("Unknown LastOpc %X for Timestamp on port %c.\n", pAC->LastOpc, Port)); #endif } } } #endif switch (OpCode) { case OP_RXSTAT: #ifdef Y2_RECOVERY pAC->LastOpc = OP_RXSTAT; #endif /* ** This is always the last Status LE belonging ** to a received packet -> handle it... */ if ((Port != 0) && (Port != 1)) { /* Unknown port */ panic("sk98lin: Unknown port %d\n", Port); } HandleReceives( pAC, Port, STLE_GET_LEN(pLE), STLE_GET_FRSTATUS(pLE), pAC->StatusLETable.Bmu.Stat.TcpSum1, pAC->StatusLETable.Bmu.Stat.TcpSum2, pAC->StatusLETable.Bmu.Stat.RxTimeStamp, pAC->StatusLETable.Bmu.Stat.VlanId); #ifdef CONFIG_SK98LIN_NAPI if (*WorkDone >= WorkToDo) { break; } (*WorkDone)++; #endif break; case OP_RXVLAN: /* this value will be used for next RXSTAT */ pAC->StatusLETable.Bmu.Stat.VlanId = STLE_GET_VLAN(pLE); break; case OP_RXTIMEVLAN: /* this value will be used for next RXSTAT */ pAC->StatusLETable.Bmu.Stat.VlanId = STLE_GET_VLAN(pLE); /* fall through */ case OP_RXTIMESTAMP: /* this value will be used for next RXSTAT */ pAC->StatusLETable.Bmu.Stat.RxTimeStamp = STLE_GET_TIST(pLE); #ifdef Y2_RECOVERY pAC->LastOpc = OP_RXTIMESTAMP; pAC->LastPort = Port; #endif break; case OP_RXCHKSVLAN: /* this value will be used for next RXSTAT */ pAC->StatusLETable.Bmu.Stat.VlanId = STLE_GET_VLAN(pLE); /* fall through */ case OP_RXCHKS: /* this value will be used for next RXSTAT */ pAC->StatusLETable.Bmu.Stat.TcpSum1 = STLE_GET_TCP1(pLE); pAC->StatusLETable.Bmu.Stat.TcpSum2 = STLE_GET_TCP2(pLE); #ifdef Y2_RECOVERY pAC->LastPort = Port; pAC->LastOpc = OP_RXCHKS; #endif break; case OP_RSS_HASH: /* this value will be used for next RXSTAT */ #if 0 pAC->StatusLETable.Bmu.Stat.RssHashValue = STLE_GET_RSS(pLE); #endif break; case OP_TXINDEXLE: /* ** :;:; TODO ** it would be possible to check for which queues ** the index has been changed and call ** CheckForSendComplete() only for such queues */ STLE_GET_DONE_IDX(pLE,LowVal,HighVal); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC, ("LowVal: 0x%x HighVal: 0x%x\n", LowVal, HighVal)); /* ** It would be possible to check whether we really ** need the values for second port or sync queue, ** but I think checking whether we need them is ** more expensive than the calculation */ DoneTxA[0] = STLE_GET_DONE_IDX_TXA1(LowVal,HighVal); DoneTxS[0] = STLE_GET_DONE_IDX_TXS1(LowVal,HighVal); DoneTxA[1] = STLE_GET_DONE_IDX_TXA2(LowVal,HighVal); DoneTxS[1] = STLE_GET_DONE_IDX_TXS2(LowVal,HighVal); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC, ("DoneTxa1 0x%x DoneTxS1: 0x%x DoneTxa2 0x%x DoneTxS2: 0x%x\n", DoneTxA[0], DoneTxS[0], DoneTxA[1], DoneTxS[1])); NewDone = SK_TRUE; break; #ifdef USE_TIST_FOR_RESET case OP_MOD_TXINDEX: SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DUMP, ("OP_MOD_TXINDEX\n")); SK_IN16(pAC->IoBase, Q_ADDR(Q_XA1, Q_DONE), &DoneTxA[0]); if (pAC->GIni.GIMacsFound > 1) { SK_IN16(pAC->IoBase, Q_ADDR(Q_XA2, Q_DONE), &DoneTxA[1]); } NewDone = SK_TRUE; break; case OP_MOD_LE: SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DUMP, ("Ignore marked LE on port in Reset\n")); break; #endif default: /* ** Have to handle the illegal Opcode in Status LE */ SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC, ("Unexpected OpCode\n")); break; } #ifdef Y2_RECOVERY OpCode = STLE_GET_OPC(pLE) & ~HW_OWNER; STLE_SET_OPC(pLE, OpCode); #else /* ** Reset own bit we have to do this in order to detect a overflow */ STLE_SET_OPC(pLE, SW_OWNER); #endif } /* while (OWN_OF_FIRST_LE(&pAC->StatusLETable) == HW_OWNER) */ /* ** Now handle any new transmit complete */ if (NewDone) { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC, ("Done Index for Tx BMU has been changed\n")); for (Port = 0; Port < pAC->GIni.GIMacsFound; Port++) { /* ** Do we have a new Done idx ? */ if (DoneTxA[Port] != GET_DONE_INDEX(&pAC->TxPort[Port][0].TxALET)) { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC, ("Check TxA%d\n", Port + 1)); CheckForSendComplete(pAC, pAC->IoBase, Port, &(pAC->TxPort[Port][0].TxAQ_working), &pAC->TxPort[Port][0].TxALET, DoneTxA[Port]); } else { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC, ("No changes for TxA%d\n", Port + 1)); } #if USE_SYNC_TX_QUEUE if (HW_SYNC_TX_SUPPORTED(pAC)) { /* ** Do we have a new Done idx ? */ if (DoneTxS[Port] != GET_DONE_INDEX(&pAC->TxPort[Port][0].TxSLET)) { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC, ("Check TxS%d\n", Port)); CheckForSendComplete(pAC, pAC->IoBase, Port, &(pAC->TxPort[Port][0].TxSQ_working), &pAC->TxPort[Port][0].TxSLET, DoneTxS[Port]); } else { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC, ("No changes for TxS%d\n", Port)); } } #endif } } NewDone = SK_FALSE; /* ** Check whether we have to refill our RX table */ if (HW_FEATURE(pAC, HWF_WA_DEV_420)) { if (NbrRxBuffersInHW < MAX_NBR_RX_BUFFERS_IN_HW) { for (Port = 0; Port < pAC->GIni.GIMacsFound; Port++) { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC, ("Check for refill of RxBuffers on Port %c\n", 'A' + Port)); FillReceiveTableYukon2(pAC, pAC->IoBase, Port); } } } else { for (Port = 0; Port < pAC->GIni.GIMacsFound; Port++) { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC, ("Check for refill of RxBuffers on Port %c\n", 'A' + Port)); if (NUM_FREE_LE_IN_TABLE(&pAC->RxPort[Port].RxLET) >= 64) { FillReceiveTableYukon2(pAC, pAC->IoBase, Port); } } } #ifdef CONFIG_SK98LIN_NAPI if (*WorkDone >= WorkToDo) { break; } #endif } while (OWN_OF_FIRST_LE(&pAC->StatusLETable) == HW_OWNER); /* ** Clear status BMU */ if (handledStatLE) SK_OUT32(pAC->IoBase, STAT_CTRL, SC_STAT_CLR_IRQ); return(handledStatLE); } /* HandleStatusLEs */ /***************************************************************************** * * AllocateAndInitLETables - allocate memory for the LETable and init * * Description: * This function will allocate space for the LETable and will also * initialize them. The size of the tables must have been specified * before. * * Arguments: * pAC - A pointer to the adapter context struct. * * Returns: * SK_TRUE - all LETables initialized * SK_FALSE - failed */ static SK_BOOL AllocateAndInitLETables( SK_AC *pAC) /* pointer to adapter context */ { char *pVirtMemAddr; dma_addr_t pPhysMemAddr = 0; SK_U32 CurrMac; unsigned Size; unsigned Aligned; unsigned Alignment; SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_INIT, ("==> AllocateAndInitLETables()\n")); /* ** Determine how much memory we need with respect to alignment */ Alignment = MAX_LEN_OF_LE_TAB; Size = 0; for (CurrMac = 0; CurrMac < pAC->GIni.GIMacsFound; CurrMac++) { SK_ALIGN_SIZE(LE_TAB_SIZE(RX_MAX_LE), Alignment, Aligned); Size += Aligned; SK_ALIGN_SIZE(LE_TAB_SIZE(TXA_MAX_LE), Alignment, Aligned); Size += Aligned; SK_ALIGN_SIZE(LE_TAB_SIZE(TXS_MAX_LE), Alignment, Aligned); Size += Aligned; } SK_ALIGN_SIZE(LE_TAB_SIZE(ST_MAX_LE), Alignment, Aligned); Size += Aligned; Size += Alignment; pAC->SizeOfAlignedLETables = Size; SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_INIT, ("Need %08x bytes in total\n", Size)); /* ** Allocate the memory */ pVirtMemAddr = pci_alloc_consistent(pAC->PciDev, Size, &pPhysMemAddr); if (pVirtMemAddr == NULL) { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_INIT | SK_DBGCAT_DRV_ERROR, ("AllocateAndInitLETables: kernel malloc failed!\n")); return (SK_FALSE); } /* ** Initialize the memory */ SK_MEMSET(pVirtMemAddr, 0, Size); ALIGN_ADDR(pVirtMemAddr, Alignment); /* Macro defined in skgew.h */ #if 1 /* Marvell - uboot */ ALIGN_ADDR(pPhysMemAddr, Alignment); #endif SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_INIT, ("Virtual address of LETab is %8p!\n", pVirtMemAddr)); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_INIT, ("Phys address of LETab is %8p!\n", (void *) pPhysMemAddr)); for (CurrMac = 0; CurrMac < pAC->GIni.GIMacsFound; CurrMac++) { SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_INIT, ("RxLeTable for Port %c", 'A' + CurrMac)); SkGeY2InitSingleLETable( pAC, &pAC->RxPort[CurrMac].RxLET, RX_MAX_LE, pVirtMemAddr, (SK_U32) (pPhysMemAddr & 0xffffffff), (SK_U32) (((SK_U64) pPhysMemAddr) >> 32)); SK_ALIGN_SIZE(LE_TAB_SIZE(RX_MAX_LE), Alignment, Aligned); pVirtMemAddr += Aligned; pPhysMemAddr += Aligned; SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_INIT, ("TxALeTable for Port %c", 'A' + CurrMac)); SkGeY2InitSingleLETable( pAC, &pAC->TxPort[CurrMac][0].TxALET, TXA_MAX_LE, pVirtMemAddr, (SK_U32) (pPhysMemAddr & 0xffffffff), (SK_U32) (((SK_U64) pPhysMemAddr) >> 32)); SK_ALIGN_SIZE(LE_TAB_SIZE(TXA_MAX_LE), Alignment, Aligned); pVirtMemAddr += Aligned; pPhysMemAddr += Aligned; SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_INIT, ("TxSLeTable for Port %c", 'A' + CurrMac)); SkGeY2InitSingleLETable( pAC, &pAC->TxPort[CurrMac][0].TxSLET, TXS_MAX_LE, pVirtMemAddr, (SK_U32) (pPhysMemAddr & 0xffffffff), (SK_U32) (((SK_U64) pPhysMemAddr) >> 32)); SK_ALIGN_SIZE(LE_TAB_SIZE(TXS_MAX_LE), Alignment, Aligned); pVirtMemAddr += Aligned; pPhysMemAddr += Aligned; } SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MSG,("StLeTable")); SkGeY2InitSingleLETable( pAC, &pAC->StatusLETable, ST_MAX_LE, pVirtMemAddr, (SK_U32) (pPhysMemAddr & 0xffffffff), (SK_U32) (((SK_U64) pPhysMemAddr) >> 32)); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_INIT, ("<== AllocateAndInitLETables(OK)\n")); return(SK_TRUE); } /* AllocateAndInitLETables */ /***************************************************************************** * * AllocatePacketBuffersYukon2 - allocate packet and fragment buffers * * Description: * This function will allocate space for the packets and fragments * * Arguments: * pAC - A pointer to the adapter context struct. * * Returns: * SK_TRUE - Memory was allocated correctly * SK_FALSE - An error occured */ static SK_BOOL AllocatePacketBuffersYukon2( SK_AC *pAC) /* pointer to adapter context */ { SK_PACKET *pRxPacket; SK_PACKET *pTxPacket; SK_U32 CurrBuff; SK_U32 CurrMac; unsigned long Flags; /* needed for POP/PUSH functions */ SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_INIT, ("==> AllocatePacketBuffersYukon2()")); for (CurrMac = 0; CurrMac < pAC->GIni.GIMacsFound; CurrMac++) { /* ** Allocate RX packet space, initialize the packets and ** add them to the RX waiting queue. Waiting queue means ** that packet and fragment are initialized, but no sk_buff ** has been assigned to it yet. */ pAC->RxPort[CurrMac].ReceivePacketTable = kmalloc((RX_MAX_NBR_BUFFERS * sizeof(SK_PACKET)), GFP_KERNEL); if (pAC->RxPort[CurrMac].ReceivePacketTable == NULL) { SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_INIT | SK_DBGCAT_DRV_ERROR, ("AllocatePacketBuffersYukon2: no mem RxPkts (port %i)",CurrMac)); break; } else { SK_MEMSET(pAC->RxPort[CurrMac].ReceivePacketTable, 0, (RX_MAX_NBR_BUFFERS * sizeof(SK_PACKET))); pRxPacket = pAC->RxPort[CurrMac].ReceivePacketTable; for (CurrBuff=0;CurrBuffpFrag = &(pRxPacket->FragArray[0]); pRxPacket->NumFrags = 1; PUSH_PKT_AS_LAST_IN_QUEUE(&pAC->RxPort[CurrMac].RxQ_waiting, pRxPacket); pRxPacket++; } } /* ** Allocate TX packet space, initialize the packets and ** add them to the TX free queue. Free queue means that ** packet is available and initialized, but no fragment ** has been assigned to it. (Must be done at TX side) */ pAC->TxPort[CurrMac][0].TransmitPacketTable = kmalloc((TX_MAX_NBR_BUFFERS * sizeof(SK_PACKET)), GFP_KERNEL); if (pAC->TxPort[CurrMac][0].TransmitPacketTable == NULL) { SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_INIT | SK_DBGCAT_DRV_ERROR, ("AllocatePacketBuffersYukon2: no mem TxPkts (port %i)",CurrMac)); kfree(pAC->RxPort[CurrMac].ReceivePacketTable); return(SK_FALSE); } else { SK_MEMSET(pAC->TxPort[CurrMac][0].TransmitPacketTable, 0, (TX_MAX_NBR_BUFFERS * sizeof(SK_PACKET))); pTxPacket = pAC->TxPort[CurrMac][0].TransmitPacketTable; for (CurrBuff=0;CurrBuffTxPort[CurrMac][0].TxQ_free, pTxPacket); pTxPacket++; } } } /* end for (CurrMac = 0; CurrMac < pAC->GIni.GIMacsFound; CurrMac++) */ SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_INIT, ("<== AllocatePacketBuffersYukon2 (OK)\n")); return(SK_TRUE); } /* AllocatePacketBuffersYukon2 */ /***************************************************************************** * * FreeLETables - release allocated memory of LETables * * Description: * This function will free all resources of the LETables * * Arguments: * pAC - A pointer to the adapter context struct. * * Returns: N/A */ static void FreeLETables( SK_AC *pAC) /* pointer to adapter control context */ { dma_addr_t pPhysMemAddr; char *pVirtMemAddr; SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MSG, ("==> FreeLETables()\n")); /* ** The RxLETable is the first of all LET. ** Therefore we can use its address for the input ** of the free function. */ pVirtMemAddr = (char *) pAC->RxPort[0].RxLET.pLETab; pPhysMemAddr = (((SK_U64) pAC->RxPort[0].RxLET.pPhyLETABHigh << (SK_U64) 32) | ((SK_U64) pAC->RxPort[0].RxLET.pPhyLETABLow)); /* free continuous memory */ pci_free_consistent(pAC->PciDev, pAC->SizeOfAlignedLETables, pVirtMemAddr, pPhysMemAddr); SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MSG, ("<== FreeLETables()\n")); } /* FreeLETables */ /***************************************************************************** * * FreePacketBuffers - free's all packet buffers of an adapter * * Description: * This function will free all previously allocated memory of the * packet buffers. * * Arguments: * pAC - A pointer to the adapter context struct. * * Returns: N/A */ static void FreePacketBuffers( SK_AC *pAC) /* pointer to adapter control context */ { int Port; SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MSG, ("==> FreePacketBuffers()\n")); for (Port = 0; Port < pAC->GIni.GIMacsFound; Port++) { kfree(pAC->RxPort[Port].ReceivePacketTable); kfree(pAC->TxPort[Port][0].TransmitPacketTable); } SK_DBG_MSG(pAC, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MSG, ("<== FreePacketBuffers()\n")); } /* FreePacketBuffers */ /***************************************************************************** * * AllocAndMapRxBuffer - fill one buffer into the receive packet/fragment * * Description: * The function allocates a new receive buffer and assigns it to the * the passsed receive packet/fragment * * Returns: * SK_TRUE - a buffer was allocated and assigned * SK_FALSE - a buffer could not be added */ static SK_BOOL AllocAndMapRxBuffer( SK_AC *pAC, /* pointer to the adapter control context */ SK_PACKET *pSkPacket, /* pointer to packet that is to fill */ int Port) /* port the packet belongs to */ { struct sk_buff *pMsgBlock; /* pointer to a new message block */ SK_U64 PhysAddr; /* physical address of a rx buffer */ SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("--> AllocAndMapRxBuffer (Port: %i)\n", Port)); pMsgBlock = alloc_skb(pAC->RxPort[Port].RxBufSize, GFP_ATOMIC); #if 1 /*Marvell - uboot*/ skb_reserve(pMsgBlock, 2); /* to align IP frames */ #endif if (pMsgBlock == NULL) { SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS | SK_DBGCAT_DRV_ERROR, ("%s: Allocation of rx buffer failed !\n", pAC->dev[Port]->name)); SK_PNMI_CNT_NO_RX_BUF(pAC, pAC->RxPort[Port].PortIndex); return(SK_FALSE); } skb_reserve(pMsgBlock, 8); #if 0 /* uboot */ PhysAddr = (SK_U64) pci_map_page(pAC->PciDev, virt_to_page(pMsgBlock->data), ((unsigned long) pMsgBlock->data & ~PAGE_MASK), pAC->RxPort[Port].RxBufSize, PCI_DMA_FROMDEVICE); #else PhysAddr = (SK_U64)(SK_U32)pMsgBlock->data; #endif pSkPacket->pFrag->pVirt = pMsgBlock->data; pSkPacket->pFrag->pPhys = PhysAddr; pSkPacket->pFrag->FragLen = pAC->RxPort[Port].RxBufSize; /* for correct unmap */ pSkPacket->pMBuf = pMsgBlock; pSkPacket->PacketLen = pAC->RxPort[Port].RxBufSize; SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS, ("<-- AllocAndMapRxBuffer\n")); return (SK_TRUE); } /* AllocAndMapRxBuffer */ /******************************************************************************* * * End of file * ******************************************************************************/ #endif