diff options
Diffstat (limited to 'drivers/staging/et131x/et1310_tx.c')
| -rw-r--r-- | drivers/staging/et131x/et1310_tx.c | 1067 |
1 files changed, 237 insertions, 830 deletions
diff --git a/drivers/staging/et131x/et1310_tx.c b/drivers/staging/et131x/et1310_tx.c index 30eaac4c8707..94f7752e2ccc 100644 --- a/drivers/staging/et131x/et1310_tx.c +++ b/drivers/staging/et131x/et1310_tx.c @@ -2,7 +2,7 @@ * Agere Systems Inc. * 10/100/1000 Base-T Ethernet Driver for the ET1301 and ET131x series MACs * - * Copyright © 2005 Agere Systems Inc. + * Copyright © 2005 Agere Systems Inc. * All rights reserved. * http://www.agere.com * @@ -19,7 +19,7 @@ * software indicates your acceptance of these terms and conditions. If you do * not agree with these terms and conditions, do not use the software. * - * Copyright © 2005 Agere Systems Inc. + * Copyright © 2005 Agere Systems Inc. * All rights reserved. * * Redistribution and use in source or binary forms, with or without @@ -40,7 +40,7 @@ * * Disclaimer * - * THIS SOFTWARE IS PROVIDED “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, + * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, INFRINGEMENT AND THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ANY * USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE IS SOLELY AT THE USERS OWN @@ -56,7 +56,6 @@ */ #include "et131x_version.h" -#include "et131x_debug.h" #include "et131x_defs.h" #include <linux/pci.h> @@ -74,9 +73,9 @@ #include <linux/interrupt.h> #include <linux/in.h> #include <linux/delay.h> -#include <asm/io.h> +#include <linux/io.h> +#include <linux/bitops.h> #include <asm/system.h> -#include <asm/bitops.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> @@ -94,18 +93,14 @@ #include "et1310_tx.h" -/* Data for debugging facilities */ -#ifdef CONFIG_ET131X_DEBUG -extern dbg_info_t *et131x_dbginfo; -#endif /* CONFIG_ET131X_DEBUG */ -static void et131x_update_tcb_list(struct et131x_adapter *pAdapter); -static void et131x_check_send_wait_list(struct et131x_adapter *pAdapter); -static inline void et131x_free_send_packet(struct et131x_adapter *pAdapter, +static void et131x_update_tcb_list(struct et131x_adapter *etdev); +static void et131x_check_send_wait_list(struct et131x_adapter *etdev); +static inline void et131x_free_send_packet(struct et131x_adapter *etdev, PMP_TCB pMpTcb); static int et131x_send_packet(struct sk_buff *skb, - struct et131x_adapter *pAdapter); -static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb); + struct et131x_adapter *etdev); +static int nic_send_packet(struct et131x_adapter *etdev, PMP_TCB pMpTcb); /** * et131x_tx_dma_memory_alloc @@ -124,14 +119,11 @@ int et131x_tx_dma_memory_alloc(struct et131x_adapter *adapter) int desc_size = 0; TX_RING_t *tx_ring = &adapter->TxRing; - DBG_ENTER(et131x_dbginfo); - /* Allocate memory for the TCB's (Transmit Control Block) */ - adapter->TxRing.MpTcbMem = (MP_TCB *) kcalloc(NUM_TCB, sizeof(MP_TCB), + adapter->TxRing.MpTcbMem = (MP_TCB *)kcalloc(NUM_TCB, sizeof(MP_TCB), GFP_ATOMIC | GFP_DMA); if (!adapter->TxRing.MpTcbMem) { - DBG_ERROR(et131x_dbginfo, "Cannot alloc memory for TCBs\n"); - DBG_LEAVE(et131x_dbginfo); + dev_err(&adapter->pdev->dev, "Cannot alloc memory for TCBs\n"); return -ENOMEM; } @@ -143,8 +135,7 @@ int et131x_tx_dma_memory_alloc(struct et131x_adapter *adapter) (PTX_DESC_ENTRY_t) pci_alloc_consistent(adapter->pdev, desc_size, &tx_ring->pTxDescRingPa); if (!adapter->TxRing.pTxDescRingVa) { - DBG_ERROR(et131x_dbginfo, "Cannot alloc memory for Tx Ring\n"); - DBG_LEAVE(et131x_dbginfo); + dev_err(&adapter->pdev->dev, "Cannot alloc memory for Tx Ring\n"); return -ENOMEM; } @@ -169,9 +160,8 @@ int et131x_tx_dma_memory_alloc(struct et131x_adapter *adapter) sizeof(TX_STATUS_BLOCK_t), &tx_ring->pTxStatusPa); if (!adapter->TxRing.pTxStatusPa) { - DBG_ERROR(et131x_dbginfo, - "Cannot alloc memory for Tx status block\n"); - DBG_LEAVE(et131x_dbginfo); + dev_err(&adapter->pdev->dev, + "Cannot alloc memory for Tx status block\n"); return -ENOMEM; } @@ -180,13 +170,11 @@ int et131x_tx_dma_memory_alloc(struct et131x_adapter *adapter) NIC_MIN_PACKET_SIZE, &tx_ring->pTxDummyBlkPa); if (!adapter->TxRing.pTxDummyBlkPa) { - DBG_ERROR(et131x_dbginfo, - "Cannot alloc memory for Tx dummy buffer\n"); - DBG_LEAVE(et131x_dbginfo); + dev_err(&adapter->pdev->dev, + "Cannot alloc memory for Tx dummy buffer\n"); return -ENOMEM; } - DBG_LEAVE(et131x_dbginfo); return 0; } @@ -200,8 +188,6 @@ void et131x_tx_dma_memory_free(struct et131x_adapter *adapter) { int desc_size = 0; - DBG_ENTER(et131x_dbginfo); - if (adapter->TxRing.pTxDescRingVa) { /* Free memory relating to Tx rings here */ adapter->TxRing.pTxDescRingVa -= adapter->TxRing.TxDescOffset; @@ -238,32 +224,25 @@ void et131x_tx_dma_memory_free(struct et131x_adapter *adapter) } /* Free the memory for MP_TCB structures */ - if (adapter->TxRing.MpTcbMem) { - kfree(adapter->TxRing.MpTcbMem); - adapter->TxRing.MpTcbMem = NULL; - } - - DBG_LEAVE(et131x_dbginfo); + kfree(adapter->TxRing.MpTcbMem); } /** * ConfigTxDmaRegs - Set up the tx dma section of the JAGCore. - * @adapter: pointer to our private adapter structure + * @etdev: pointer to our private adapter structure */ -void ConfigTxDmaRegs(struct et131x_adapter *pAdapter) +void ConfigTxDmaRegs(struct et131x_adapter *etdev) { - struct _TXDMA_t __iomem *pTxDma = &pAdapter->CSRAddress->txdma; - - DBG_ENTER(et131x_dbginfo); + struct _TXDMA_t __iomem *txdma = &etdev->regs->txdma; /* Load the hardware with the start of the transmit descriptor ring. */ - writel((uint32_t) (pAdapter->TxRing.pTxDescRingAdjustedPa >> 32), - &pTxDma->pr_base_hi); - writel((uint32_t) pAdapter->TxRing.pTxDescRingAdjustedPa, - &pTxDma->pr_base_lo); + writel((uint32_t) (etdev->TxRing.pTxDescRingAdjustedPa >> 32), + &txdma->pr_base_hi); + writel((uint32_t) etdev->TxRing.pTxDescRingAdjustedPa, + &txdma->pr_base_lo); /* Initialise the transmit DMA engine */ - writel(NUM_DESC_PER_RING_TX - 1, &pTxDma->pr_num_des.value); + writel(NUM_DESC_PER_RING_TX - 1, &txdma->pr_num_des.value); /* Load the completion writeback physical address * @@ -272,57 +251,44 @@ void ConfigTxDmaRegs(struct et131x_adapter *pAdapter) * are ever returned, make sure the high part is retrieved here before * storing the adjusted address. */ - writel(0, &pTxDma->dma_wb_base_hi); - writel(pAdapter->TxRing.pTxStatusPa, &pTxDma->dma_wb_base_lo); - - memset(pAdapter->TxRing.pTxStatusVa, 0, sizeof(TX_STATUS_BLOCK_t)); + writel(0, &txdma->dma_wb_base_hi); + writel(etdev->TxRing.pTxStatusPa, &txdma->dma_wb_base_lo); - writel(0, &pTxDma->service_request.value); - pAdapter->TxRing.txDmaReadyToSend.value = 0; + memset(etdev->TxRing.pTxStatusVa, 0, sizeof(TX_STATUS_BLOCK_t)); - DBG_LEAVE(et131x_dbginfo); + writel(0, &txdma->service_request); + etdev->TxRing.txDmaReadyToSend = 0; } /** * et131x_tx_dma_disable - Stop of Tx_DMA on the ET1310 - * @pAdapter: pointer to our adapter structure + * @etdev: pointer to our adapter structure */ -void et131x_tx_dma_disable(struct et131x_adapter *pAdapter) +void et131x_tx_dma_disable(struct et131x_adapter *etdev) { - DBG_ENTER(et131x_dbginfo); - /* Setup the tramsmit dma configuration register */ - writel(0x101, &pAdapter->CSRAddress->txdma.csr.value); - - DBG_LEAVE(et131x_dbginfo); + writel(ET_TXDMA_CSR_HALT|ET_TXDMA_SNGL_EPKT, + &etdev->regs->txdma.csr); } /** * et131x_tx_dma_enable - re-start of Tx_DMA on the ET1310. - * @pAdapter: pointer to our adapter structure + * @etdev: pointer to our adapter structure * * Mainly used after a return to the D0 (full-power) state from a lower state. */ -void et131x_tx_dma_enable(struct et131x_adapter *pAdapter) +void et131x_tx_dma_enable(struct et131x_adapter *etdev) { - DBG_ENTER(et131x_dbginfo); - - if (pAdapter->RegistryPhyLoopbk) { - /* TxDMA is disabled for loopback operation. */ - writel(0x101, &pAdapter->CSRAddress->txdma.csr.value); - } else { - TXDMA_CSR_t csr = { 0 }; - + u32 csr = ET_TXDMA_SNGL_EPKT; + if (etdev->RegistryPhyLoopbk) + /* TxDMA is disabled for loopback operation. */ + csr |= ET_TXDMA_CSR_HALT; + else /* Setup the transmit dma configuration register for normal * operation */ - csr.bits.sngl_epkt_mode = 1; - csr.bits.halt = 0; - csr.bits.cache_thrshld = pAdapter->RegistryDMACache; - writel(csr.value, &pAdapter->CSRAddress->txdma.csr.value); - } - - DBG_LEAVE(et131x_dbginfo); + csr |= PARM_DMA_CACHE_DEF << ET_TXDMA_CACHE_SHIFT; + writel(csr, &etdev->regs->txdma.csr); } /** @@ -335,8 +301,6 @@ void et131x_init_send(struct et131x_adapter *adapter) uint32_t TcbCount; TX_RING_t *tx_ring; - DBG_ENTER(et131x_dbginfo); - /* Setup some convenience pointers */ tx_ring = &adapter->TxRing; pMpTcb = adapter->TxRing.MpTcbMem; @@ -366,8 +330,6 @@ void et131x_init_send(struct et131x_adapter *adapter) tx_ring->CurrSendTail = (PMP_TCB) NULL; INIT_LIST_HEAD(&adapter->TxRing.SendWaitQueue); - - DBG_LEAVE(et131x_dbginfo); } /** @@ -380,11 +342,9 @@ void et131x_init_send(struct et131x_adapter *adapter) int et131x_send_packets(struct sk_buff *skb, struct net_device *netdev) { int status = 0; - struct et131x_adapter *pAdapter = NULL; - - DBG_TX_ENTER(et131x_dbginfo); + struct et131x_adapter *etdev = NULL; - pAdapter = netdev_priv(netdev); + etdev = netdev_priv(netdev); /* Send these packets * @@ -393,30 +353,29 @@ int et131x_send_packets(struct sk_buff *skb, struct net_device *netdev) */ /* Queue is not empty or TCB is not available */ - if (!list_empty(&pAdapter->TxRing.SendWaitQueue) || - MP_TCB_RESOURCES_NOT_AVAILABLE(pAdapter)) { + if (!list_empty(&etdev->TxRing.SendWaitQueue) || + MP_TCB_RESOURCES_NOT_AVAILABLE(etdev)) { /* NOTE: If there's an error on send, no need to queue the * packet under Linux; if we just send an error up to the * netif layer, it will resend the skb to us. */ - DBG_VERBOSE(et131x_dbginfo, "TCB Resources Not Available\n"); status = -ENOMEM; } else { /* We need to see if the link is up; if it's not, make the * netif layer think we're good and drop the packet */ - //if( MP_SHOULD_FAIL_SEND( pAdapter ) || pAdapter->DriverNoPhyAccess ) - if (MP_SHOULD_FAIL_SEND(pAdapter) || pAdapter->DriverNoPhyAccess + /* + * if( MP_SHOULD_FAIL_SEND( etdev ) || + * etdev->DriverNoPhyAccess ) + */ + if (MP_SHOULD_FAIL_SEND(etdev) || etdev->DriverNoPhyAccess || !netif_carrier_ok(netdev)) { - DBG_VERBOSE(et131x_dbginfo, - "Can't Tx, Link is DOWN; drop the packet\n"); - dev_kfree_skb_any(skb); skb = NULL; - pAdapter->net_stats.tx_dropped++; + etdev->net_stats.tx_dropped++; } else { - status = et131x_send_packet(skb, pAdapter); + status = et131x_send_packet(skb, etdev); if (status == -ENOMEM) { @@ -425,147 +384,113 @@ int et131x_send_packets(struct sk_buff *skb, struct net_device *netdev) * send an error up to the netif layer, it * will resend the skb to us. */ - DBG_WARNING(et131x_dbginfo, - "Resources problem, Queue tx packet\n"); } else if (status != 0) { /* On any other error, make netif think we're * OK and drop the packet */ - DBG_WARNING(et131x_dbginfo, - "General error, drop packet\n"); - dev_kfree_skb_any(skb); skb = NULL; - - pAdapter->net_stats.tx_dropped++; + etdev->net_stats.tx_dropped++; } } } - - DBG_TX_LEAVE(et131x_dbginfo); return status; } /** * et131x_send_packet - Do the work to send a packet * @skb: the packet(s) to send - * @pAdapter: a pointer to the device's private adapter structure + * @etdev: a pointer to the device's private adapter structure * * Return 0 in almost all cases; non-zero value in extreme hard failure only. * * Assumption: Send spinlock has been acquired */ static int et131x_send_packet(struct sk_buff *skb, - struct et131x_adapter *pAdapter) + struct et131x_adapter *etdev) { int status = 0; PMP_TCB pMpTcb = NULL; - uint16_t *pShBufVa; - unsigned long lockflags; - - DBG_TX_ENTER(et131x_dbginfo); - - /* Is our buffer scattered, or continuous? */ - if (skb_shinfo(skb)->nr_frags == 0) { - DBG_TX(et131x_dbginfo, "Scattered buffer: NO\n"); - } else { - DBG_TX(et131x_dbginfo, "Scattered buffer: YES, Num Frags: %d\n", - skb_shinfo(skb)->nr_frags); - } + uint16_t *shbufva; + unsigned long flags; /* All packets must have at least a MAC address and a protocol type */ if (skb->len < ETH_HLEN) { - DBG_ERROR(et131x_dbginfo, - "Packet size < ETH_HLEN (14 bytes)\n"); - DBG_LEAVE(et131x_dbginfo); return -EIO; } /* Get a TCB for this packet */ - spin_lock_irqsave(&pAdapter->TCBReadyQLock, lockflags); + spin_lock_irqsave(&etdev->TCBReadyQLock, flags); - pMpTcb = pAdapter->TxRing.TCBReadyQueueHead; + pMpTcb = etdev->TxRing.TCBReadyQueueHead; if (pMpTcb == NULL) { - spin_unlock_irqrestore(&pAdapter->TCBReadyQLock, lockflags); - - DBG_WARNING(et131x_dbginfo, "Can't obtain a TCB\n"); - DBG_TX_LEAVE(et131x_dbginfo); + spin_unlock_irqrestore(&etdev->TCBReadyQLock, flags); return -ENOMEM; } - pAdapter->TxRing.TCBReadyQueueHead = pMpTcb->Next; + etdev->TxRing.TCBReadyQueueHead = pMpTcb->Next; - if (pAdapter->TxRing.TCBReadyQueueHead == NULL) { - pAdapter->TxRing.TCBReadyQueueTail = NULL; - } + if (etdev->TxRing.TCBReadyQueueHead == NULL) + etdev->TxRing.TCBReadyQueueTail = NULL; - spin_unlock_irqrestore(&pAdapter->TCBReadyQLock, lockflags); + spin_unlock_irqrestore(&etdev->TCBReadyQLock, flags); pMpTcb->PacketLength = skb->len; pMpTcb->Packet = skb; if ((skb->data != NULL) && ((skb->len - skb->data_len) >= 6)) { - pShBufVa = (uint16_t *) skb->data; + shbufva = (uint16_t *) skb->data; - if ((pShBufVa[0] == 0xffff) && - (pShBufVa[1] == 0xffff) && (pShBufVa[2] == 0xffff)) { - MP_SET_FLAG(pMpTcb, fMP_DEST_BROAD); - } else if ((pShBufVa[0] & 0x3) == 0x0001) { - MP_SET_FLAG(pMpTcb, fMP_DEST_MULTI); + if ((shbufva[0] == 0xffff) && + (shbufva[1] == 0xffff) && (shbufva[2] == 0xffff)) { + pMpTcb->Flags |= fMP_DEST_BROAD; + } else if ((shbufva[0] & 0x3) == 0x0001) { + pMpTcb->Flags |= fMP_DEST_MULTI; } } pMpTcb->Next = NULL; /* Call the NIC specific send handler. */ - if (status == 0) { - status = nic_send_packet(pAdapter, pMpTcb); - } + if (status == 0) + status = nic_send_packet(etdev, pMpTcb); if (status != 0) { - spin_lock_irqsave(&pAdapter->TCBReadyQLock, lockflags); + spin_lock_irqsave(&etdev->TCBReadyQLock, flags); - if (pAdapter->TxRing.TCBReadyQueueTail) { - pAdapter->TxRing.TCBReadyQueueTail->Next = pMpTcb; + if (etdev->TxRing.TCBReadyQueueTail) { + etdev->TxRing.TCBReadyQueueTail->Next = pMpTcb; } else { /* Apparently ready Q is empty. */ - pAdapter->TxRing.TCBReadyQueueHead = pMpTcb; + etdev->TxRing.TCBReadyQueueHead = pMpTcb; } - pAdapter->TxRing.TCBReadyQueueTail = pMpTcb; - - spin_unlock_irqrestore(&pAdapter->TCBReadyQLock, lockflags); - - DBG_TX_LEAVE(et131x_dbginfo); + etdev->TxRing.TCBReadyQueueTail = pMpTcb; + spin_unlock_irqrestore(&etdev->TCBReadyQLock, flags); return status; } - - DBG_ASSERT(pAdapter->TxRing.nBusySend <= NUM_TCB); - - DBG_TX_LEAVE(et131x_dbginfo); + WARN_ON(etdev->TxRing.nBusySend > NUM_TCB); return 0; } /** * nic_send_packet - NIC specific send handler for version B silicon. - * @pAdapter: pointer to our adapter + * @etdev: pointer to our adapter * @pMpTcb: pointer to MP_TCB * * Returns 0 or errno. */ -static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) +static int nic_send_packet(struct et131x_adapter *etdev, PMP_TCB pMpTcb) { uint32_t loopIndex; TX_DESC_ENTRY_t CurDesc[24]; uint32_t FragmentNumber = 0; - uint32_t iThisCopy, iRemainder; + uint32_t thiscopy, remainder; struct sk_buff *pPacket = pMpTcb->Packet; uint32_t FragListCount = skb_shinfo(pPacket)->nr_frags + 1; struct skb_frag_struct *pFragList = &skb_shinfo(pPacket)->frags[0]; - unsigned long lockflags1, lockflags2; - - DBG_TX_ENTER(et131x_dbginfo); + unsigned long flags; /* Part of the optimizations of this send routine restrict us to * sending 24 fragments at a pass. In practice we should never see @@ -576,7 +501,6 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) * although it is less efficient. */ if (FragListCount > 23) { - DBG_TX_LEAVE(et131x_dbginfo); return -EIO; } @@ -597,16 +521,7 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) * doesn't seem to like large fragments. */ if ((pPacket->len - pPacket->data_len) <= 1514) { - DBG_TX(et131x_dbginfo, - "Got packet of length %d, " - "filling desc entry %d, " - "TCB: 0x%p\n", - (pPacket->len - pPacket->data_len), - pAdapter->TxRing.txDmaReadyToSend.bits. - val, pMpTcb); - CurDesc[FragmentNumber].DataBufferPtrHigh = 0; - CurDesc[FragmentNumber].word2.bits. length_in_bytes = pPacket->len - pPacket->data_len; @@ -620,22 +535,13 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) * subsystem) */ CurDesc[FragmentNumber++].DataBufferPtrLow = - pci_map_single(pAdapter->pdev, + pci_map_single(etdev->pdev, pPacket->data, pPacket->len - pPacket->data_len, PCI_DMA_TODEVICE); } else { - DBG_TX(et131x_dbginfo, - "Got packet of length %d, " - "filling desc entry %d, " - "TCB: 0x%p\n", - (pPacket->len - pPacket->data_len), - pAdapter->TxRing.txDmaReadyToSend.bits. - val, pMpTcb); - CurDesc[FragmentNumber].DataBufferPtrHigh = 0; - CurDesc[FragmentNumber].word2.bits. length_in_bytes = ((pPacket->len - pPacket->data_len) / 2); @@ -649,7 +555,7 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) * subsystem) */ CurDesc[FragmentNumber++].DataBufferPtrLow = - pci_map_single(pAdapter->pdev, + pci_map_single(etdev->pdev, pPacket->data, ((pPacket->len - pPacket->data_len) / 2), @@ -669,7 +575,7 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) * subsystem) */ CurDesc[FragmentNumber++].DataBufferPtrLow = - pci_map_single(pAdapter->pdev, + pci_map_single(etdev->pdev, pPacket->data + ((pPacket->len - pPacket->data_len) / 2), @@ -678,16 +584,7 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) PCI_DMA_TODEVICE); } } else { - DBG_TX(et131x_dbginfo, - "Got packet of length %d," - "filling desc entry %d\n" - "TCB: 0x%p\n", - pFragList[loopIndex].size, - pAdapter->TxRing.txDmaReadyToSend.bits.val, - pMpTcb); - CurDesc[FragmentNumber].DataBufferPtrHigh = 0; - CurDesc[FragmentNumber].word2.bits.length_in_bytes = pFragList[loopIndex - 1].size; @@ -698,7 +595,7 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) * addressable (as defined by the pci/dma subsystem) */ CurDesc[FragmentNumber++].DataBufferPtrLow = - pci_map_page(pAdapter->pdev, + pci_map_page(etdev->pdev, pFragList[loopIndex - 1].page, pFragList[loopIndex - 1].page_offset, pFragList[loopIndex - 1].size, @@ -706,16 +603,14 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) } } - if (FragmentNumber == 0) { - DBG_WARNING(et131x_dbginfo, "No. frags is 0\n"); + if (FragmentNumber == 0) return -EIO; - } - if (pAdapter->uiLinkSpeed == TRUEPHY_SPEED_1000MBPS) { - if (++pAdapter->TxRing.TxPacketsSinceLastinterrupt == - pAdapter->RegistryTxNumBuffers) { + if (etdev->linkspeed == TRUEPHY_SPEED_1000MBPS) { + if (++etdev->TxRing.TxPacketsSinceLastinterrupt == + PARM_TX_NUM_BUFS_DEF) { CurDesc[FragmentNumber - 1].word3.value = 0x5; - pAdapter->TxRing.TxPacketsSinceLastinterrupt = 0; + etdev->TxRing.TxPacketsSinceLastinterrupt = 0; } else { CurDesc[FragmentNumber - 1].word3.value = 0x1; } @@ -725,529 +620,101 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) CurDesc[0].word3.bits.f = 1; - pMpTcb->WrIndexStart = pAdapter->TxRing.txDmaReadyToSend; + pMpTcb->WrIndexStart = etdev->TxRing.txDmaReadyToSend; pMpTcb->PacketStaleCount = 0; - spin_lock_irqsave(&pAdapter->SendHWLock, lockflags1); + spin_lock_irqsave(&etdev->SendHWLock, flags); - iThisCopy = - NUM_DESC_PER_RING_TX - pAdapter->TxRing.txDmaReadyToSend.bits.val; + thiscopy = NUM_DESC_PER_RING_TX - + INDEX10(etdev->TxRing.txDmaReadyToSend); - if (iThisCopy >= FragmentNumber) { - iRemainder = 0; - iThisCopy = FragmentNumber; + if (thiscopy >= FragmentNumber) { + remainder = 0; + thiscopy = FragmentNumber; } else { - iRemainder = FragmentNumber - iThisCopy; + remainder = FragmentNumber - thiscopy; } - memcpy(pAdapter->TxRing.pTxDescRingVa + - pAdapter->TxRing.txDmaReadyToSend.bits.val, CurDesc, - sizeof(TX_DESC_ENTRY_t) * iThisCopy); + memcpy(etdev->TxRing.pTxDescRingVa + + INDEX10(etdev->TxRing.txDmaReadyToSend), CurDesc, + sizeof(TX_DESC_ENTRY_t) * thiscopy); - pAdapter->TxRing.txDmaReadyToSend.bits.val += iThisCopy; + add_10bit(&etdev->TxRing.txDmaReadyToSend, thiscopy); - if ((pAdapter->TxRing.txDmaReadyToSend.bits.val == 0) || - (pAdapter->TxRing.txDmaReadyToSend.bits.val == - NUM_DESC_PER_RING_TX)) { - if (pAdapter->TxRing.txDmaReadyToSend.bits.wrap) { - pAdapter->TxRing.txDmaReadyToSend.value = 0; - } else { - pAdapter->TxRing.txDmaReadyToSend.value = 0x400; - } + if (INDEX10(etdev->TxRing.txDmaReadyToSend)== 0 || + INDEX10(etdev->TxRing.txDmaReadyToSend) == NUM_DESC_PER_RING_TX) { + etdev->TxRing.txDmaReadyToSend &= ~ET_DMA10_MASK; + etdev->TxRing.txDmaReadyToSend ^= ET_DMA10_WRAP; } - if (iRemainder) { - memcpy(pAdapter->TxRing.pTxDescRingVa, - CurDesc + iThisCopy, - sizeof(TX_DESC_ENTRY_t) * iRemainder); + if (remainder) { + memcpy(etdev->TxRing.pTxDescRingVa, + CurDesc + thiscopy, + sizeof(TX_DESC_ENTRY_t) * remainder); - pAdapter->TxRing.txDmaReadyToSend.bits.val += iRemainder; + add_10bit(&etdev->TxRing.txDmaReadyToSend, remainder); } - if (pAdapter->TxRing.txDmaReadyToSend.bits.val == 0) { - if (pAdapter->TxRing.txDmaReadyToSend.value) { - pMpTcb->WrIndex.value = NUM_DESC_PER_RING_TX - 1; - } else { - pMpTcb->WrIndex.value = - 0x400 | (NUM_DESC_PER_RING_TX - 1); - } - } else { - pMpTcb->WrIndex.value = - pAdapter->TxRing.txDmaReadyToSend.value - 1; - } + if (INDEX10(etdev->TxRing.txDmaReadyToSend) == 0) { + if (etdev->TxRing.txDmaReadyToSend) + pMpTcb->WrIndex = NUM_DESC_PER_RING_TX - 1; + else + pMpTcb->WrIndex= ET_DMA10_WRAP | (NUM_DESC_PER_RING_TX - 1); + } else + pMpTcb->WrIndex = etdev->TxRing.txDmaReadyToSend - 1; - spin_lock_irqsave(&pAdapter->TCBSendQLock, lockflags2); + spin_lock(&etdev->TCBSendQLock); - if (pAdapter->TxRing.CurrSendTail) { - pAdapter->TxRing.CurrSendTail->Next = pMpTcb; - } else { - pAdapter->TxRing.CurrSendHead = pMpTcb; - } + if (etdev->TxRing.CurrSendTail) + etdev->TxRing.CurrSendTail->Next = pMpTcb; + else + etdev->TxRing.CurrSendHead = pMpTcb; - pAdapter->TxRing.CurrSendTail = pMpTcb; + etdev->TxRing.CurrSendTail = pMpTcb; - DBG_ASSERT(pMpTcb->Next == NULL); + WARN_ON(pMpTcb->Next != NULL); - pAdapter->TxRing.nBusySend++; + etdev->TxRing.nBusySend++; - spin_unlock_irqrestore(&pAdapter->TCBSendQLock, lockflags2); + spin_unlock(&etdev->TCBSendQLock); /* Write the new write pointer back to the device. */ - writel(pAdapter->TxRing.txDmaReadyToSend.value, - &pAdapter->CSRAddress->txdma.service_request.value); + writel(etdev->TxRing.txDmaReadyToSend, + &etdev->regs->txdma.service_request); /* For Gig only, we use Tx Interrupt coalescing. Enable the software * timer to wake us up if this packet isn't followed by N more. */ - if (pAdapter->uiLinkSpeed == TRUEPHY_SPEED_1000MBPS) { - writel(pAdapter->RegistryTxTimeInterval * NANO_IN_A_MICRO, - &pAdapter->CSRAddress->global.watchdog_timer); + if (etdev->linkspeed == TRUEPHY_SPEED_1000MBPS) { + writel(PARM_TX_TIME_INT_DEF * NANO_IN_A_MICRO, + &etdev->regs->global.watchdog_timer); } + spin_unlock_irqrestore(&etdev->SendHWLock, flags); - spin_unlock_irqrestore(&pAdapter->SendHWLock, lockflags1); - - DBG_TX_LEAVE(et131x_dbginfo); return 0; } -/* - * NOTE: For now, keep this older version of NICSendPacket around for - * reference, even though it's not used - */ -#if 0 - -/** - * NICSendPacket - NIC specific send handler. - * @pAdapter: pointer to our adapter - * @pMpTcb: pointer to MP_TCB - * - * Returns 0 on succes, errno on failure. - * - * This version of the send routine is designed for version A silicon. - * Assumption - Send spinlock has been acquired. - */ -static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) -{ - uint32_t loopIndex, fragIndex, loopEnd; - uint32_t iSplitFirstElement = 0; - uint32_t SegmentSize = 0; - TX_DESC_ENTRY_t CurDesc; - TX_DESC_ENTRY_t *CurDescPostCopy = NULL; - uint32_t SlotsAvailable; - DMA10W_t ServiceComplete; - unsigned int lockflags1, lockflags2; - struct sk_buff *pPacket = pMpTcb->Packet; - uint32_t FragListCount = skb_shinfo(pPacket)->nr_frags + 1; - struct skb_frag_struct *pFragList = &skb_shinfo(pPacket)->frags[0]; - - DBG_TX_ENTER(et131x_dbginfo); - - ServiceComplete.value = - readl(&pAdapter->CSRAddress->txdma.NewServiceComplete.value); - - /* - * Attempt to fix TWO hardware bugs: - * 1) NEVER write an odd number of descriptors. - * 2) If packet length is less than NIC_MIN_PACKET_SIZE, then pad the - * packet to NIC_MIN_PACKET_SIZE bytes by adding a new last - * descriptor IN HALF DUPLEX MODE ONLY - * NOTE that (2) interacts with (1). If the packet is less than - * NIC_MIN_PACKET_SIZE bytes then we will append a descriptor. - * Therefore if it is even now, it will eventually end up odd, and - * so will need adjusting. - * - * VLAN tags get involved since VLAN tags add another one or two - * segments. - */ - DBG_TX(et131x_dbginfo, - "pMpTcb->PacketLength: %d\n", pMpTcb->PacketLength); - - if ((pAdapter->uiDuplexMode == 0) - && (pMpTcb->PacketLength < NIC_MIN_PACKET_SIZE)) { - DBG_TX(et131x_dbginfo, - "HALF DUPLEX mode AND len < MIN_PKT_SIZE\n"); - if ((FragListCount & 0x1) == 0) { - DBG_TX(et131x_dbginfo, - "Even number of descs, split 1st elem\n"); - iSplitFirstElement = 1; - //SegmentSize = pFragList[0].size / 2; - SegmentSize = (pPacket->len - pPacket->data_len) / 2; - } - } else if (FragListCount & 0x1) { - DBG_TX(et131x_dbginfo, "Odd number of descs, split 1st elem\n"); - - iSplitFirstElement = 1; - //SegmentSize = pFragList[0].size / 2; - SegmentSize = (pPacket->len - pPacket->data_len) / 2; - } - - spin_lock_irqsave(&pAdapter->SendHWLock, lockflags1); - - if (pAdapter->TxRing.txDmaReadyToSend.bits.serv_req_wrap == - ServiceComplete.bits.serv_cpl_wrap) { - /* The ring hasn't wrapped. Slots available should be - * (RING_SIZE) - the difference between the two pointers. - */ - SlotsAvailable = NUM_DESC_PER_RING_TX - - (pAdapter->TxRing.txDmaReadyToSend.bits.serv_req - - ServiceComplete.bits.serv_cpl); - } else { - /* The ring has wrapped. Slots available should be the - * difference between the two pointers. - */ - SlotsAvailable = ServiceComplete.bits.serv_cpl - - pAdapter->TxRing.txDmaReadyToSend.bits.serv_req; - } - - if ((FragListCount + iSplitFirstElement) > SlotsAvailable) { - DBG_WARNING(et131x_dbginfo, - "Not Enough Space in Tx Desc Ring\n"); - spin_unlock_irqrestore(&pAdapter->SendHWLock, lockflags1); - return -ENOMEM; - } - - loopEnd = (FragListCount) + iSplitFirstElement; - fragIndex = 0; - - DBG_TX(et131x_dbginfo, - "TCB : 0x%p\n" - "Packet (SKB) : 0x%p\t Packet->len: %d\t Packet->data_len: %d\n" - "FragListCount : %d\t iSplitFirstElement: %d\t loopEnd:%d\n", - pMpTcb, - pPacket, pPacket->len, pPacket->data_len, - FragListCount, iSplitFirstElement, loopEnd); - - for (loopIndex = 0; loopIndex < loopEnd; loopIndex++) { - if (loopIndex > iSplitFirstElement) { - fragIndex++; - } - - DBG_TX(et131x_dbginfo, - "In loop, loopIndex: %d\t fragIndex: %d\n", loopIndex, - fragIndex); - - /* If there is something in this element, let's get a - * descriptor from the ring and get the necessary data - */ - DBG_TX(et131x_dbginfo, - "Packet Length %d," - "filling desc entry %d\n", - pPacket->len, - pAdapter->TxRing.txDmaReadyToSend.bits.serv_req); - - // NOTE - Should we do a paranoia check here to make sure the fragment - // actually has a length? It's HIGHLY unlikely the fragment would - // contain no data... - if (1) { - // NOTE - Currently always getting 32-bit addrs, and dma_addr_t is - // only 32-bit, so leave "high" ptr value out for now - CurDesc.DataBufferPtrHigh = 0; - - CurDesc.word2.value = 0; - CurDesc.word3.value = 0; - - if (fragIndex == 0) { - if (iSplitFirstElement) { - DBG_TX(et131x_dbginfo, - "Split first element: YES\n"); - - if (loopIndex == 0) { - DBG_TX(et131x_dbginfo, - "Got fragment of length %d, fragIndex: %d\n", - pPacket->len - - pPacket->data_len, - fragIndex); - DBG_TX(et131x_dbginfo, - "SegmentSize: %d\n", - SegmentSize); - - CurDesc.word2.bits. - length_in_bytes = - SegmentSize; - CurDesc.DataBufferPtrLow = - pci_map_single(pAdapter-> - pdev, - pPacket-> - data, - SegmentSize, - PCI_DMA_TODEVICE); - DBG_TX(et131x_dbginfo, - "pci_map_single() returns: 0x%08x\n", - CurDesc. - DataBufferPtrLow); - } else { - DBG_TX(et131x_dbginfo, - "Got fragment of length %d, fragIndex: %d\n", - pPacket->len - - pPacket->data_len, - fragIndex); - DBG_TX(et131x_dbginfo, - "Leftover Size: %d\n", - (pPacket->len - - pPacket->data_len - - SegmentSize)); - - CurDesc.word2.bits. - length_in_bytes = - ((pPacket->len - - pPacket->data_len) - - SegmentSize); - CurDesc.DataBufferPtrLow = - pci_map_single(pAdapter-> - pdev, - (pPacket-> - data + - SegmentSize), - (pPacket-> - len - - pPacket-> - data_len - - SegmentSize), - PCI_DMA_TODEVICE); - DBG_TX(et131x_dbginfo, - "pci_map_single() returns: 0x%08x\n", - CurDesc. - DataBufferPtrLow); - } - } else { - DBG_TX(et131x_dbginfo, - "Split first element: NO\n"); - - CurDesc.word2.bits.length_in_bytes = - pPacket->len - pPacket->data_len; - - CurDesc.DataBufferPtrLow = - pci_map_single(pAdapter->pdev, - pPacket->data, - (pPacket->len - - pPacket->data_len), - PCI_DMA_TODEVICE); - DBG_TX(et131x_dbginfo, - "pci_map_single() returns: 0x%08x\n", - CurDesc.DataBufferPtrLow); - } - } else { - - CurDesc.word2.bits.length_in_bytes = - pFragList[fragIndex - 1].size; - CurDesc.DataBufferPtrLow = - pci_map_page(pAdapter->pdev, - pFragList[fragIndex - 1].page, - pFragList[fragIndex - - 1].page_offset, - pFragList[fragIndex - 1].size, - PCI_DMA_TODEVICE); - DBG_TX(et131x_dbginfo, - "pci_map_page() returns: 0x%08x\n", - CurDesc.DataBufferPtrLow); - } - - if (loopIndex == 0) { - /* This is the first descriptor of the packet - * - * Set the "f" bit to indicate this is the - * first descriptor in the packet. - */ - DBG_TX(et131x_dbginfo, - "This is our FIRST descriptor\n"); - CurDesc.word3.bits.f = 1; - - pMpTcb->WrIndexStart = - pAdapter->TxRing.txDmaReadyToSend; - } - - if ((loopIndex == (loopEnd - 1)) && - (pAdapter->uiDuplexMode || - (pMpTcb->PacketLength >= NIC_MIN_PACKET_SIZE))) { - /* This is the Last descriptor of the packet */ - DBG_TX(et131x_dbginfo, - "THIS is our LAST descriptor\n"); - - if (pAdapter->uiLinkSpeed == - TRUEPHY_SPEED_1000MBPS) { - if (++pAdapter->TxRing. - TxPacketsSinceLastinterrupt >= - pAdapter->RegistryTxNumBuffers) { - CurDesc.word3.value = 0x5; - pAdapter->TxRing. - TxPacketsSinceLastinterrupt - = 0; - } else { - CurDesc.word3.value = 0x1; - } - } else { - CurDesc.word3.value = 0x5; - } - - /* Following index will be used during freeing - * of packet - */ - pMpTcb->WrIndex = - pAdapter->TxRing.txDmaReadyToSend; - pMpTcb->PacketStaleCount = 0; - } - - /* Copy the descriptor (filled above) into the - * descriptor ring at the next free entry. Advance - * the "next free entry" variable - */ - memcpy(pAdapter->TxRing.pTxDescRingVa + - pAdapter->TxRing.txDmaReadyToSend.bits.serv_req, - &CurDesc, sizeof(TX_DESC_ENTRY_t)); - - CurDescPostCopy = - pAdapter->TxRing.pTxDescRingVa + - pAdapter->TxRing.txDmaReadyToSend.bits.serv_req; - - DBG_TX(et131x_dbginfo, - "CURRENT DESCRIPTOR\n" - "\tAddress : 0x%p\n" - "\tDataBufferPtrHigh : 0x%08x\n" - "\tDataBufferPtrLow : 0x%08x\n" - "\tword2 : 0x%08x\n" - "\tword3 : 0x%08x\n", - CurDescPostCopy, - CurDescPostCopy->DataBufferPtrHigh, - CurDescPostCopy->DataBufferPtrLow, - CurDescPostCopy->word2.value, - CurDescPostCopy->word3.value); - - if (++pAdapter->TxRing.txDmaReadyToSend.bits.serv_req >= - NUM_DESC_PER_RING_TX) { - if (pAdapter->TxRing.txDmaReadyToSend.bits. - serv_req_wrap) { - pAdapter->TxRing.txDmaReadyToSend. - value = 0; - } else { - pAdapter->TxRing.txDmaReadyToSend. - value = 0x400; - } - } - } - } - - if (pAdapter->uiDuplexMode == 0 && - pMpTcb->PacketLength < NIC_MIN_PACKET_SIZE) { - // NOTE - Same 32/64-bit issue as above... - CurDesc.DataBufferPtrHigh = 0x0; - CurDesc.DataBufferPtrLow = pAdapter->TxRing.pTxDummyBlkPa; - CurDesc.word2.value = 0; - - if (pAdapter->uiLinkSpeed == TRUEPHY_SPEED_1000MBPS) { - if (++pAdapter->TxRing.TxPacketsSinceLastinterrupt >= - pAdapter->RegistryTxNumBuffers) { - CurDesc.word3.value = 0x5; - pAdapter->TxRing.TxPacketsSinceLastinterrupt = - 0; - } else { - CurDesc.word3.value = 0x1; - } - } else { - CurDesc.word3.value = 0x5; - } - - CurDesc.word2.bits.length_in_bytes = - NIC_MIN_PACKET_SIZE - pMpTcb->PacketLength; - - pMpTcb->WrIndex = pAdapter->TxRing.txDmaReadyToSend; - - memcpy(pAdapter->TxRing.pTxDescRingVa + - pAdapter->TxRing.txDmaReadyToSend.bits.serv_req, - &CurDesc, sizeof(TX_DESC_ENTRY_t)); - - CurDescPostCopy = - pAdapter->TxRing.pTxDescRingVa + - pAdapter->TxRing.txDmaReadyToSend.bits.serv_req; - - DBG_TX(et131x_dbginfo, - "CURRENT DESCRIPTOR\n" - "\tAddress : 0x%p\n" - "\tDataBufferPtrHigh : 0x%08x\n" - "\tDataBufferPtrLow : 0x%08x\n" - "\tword2 : 0x%08x\n" - "\tword3 : 0x%08x\n", - CurDescPostCopy, - CurDescPostCopy->DataBufferPtrHigh, - CurDescPostCopy->DataBufferPtrLow, - CurDescPostCopy->word2.value, - CurDescPostCopy->word3.value); - - if (++pAdapter->TxRing.txDmaReadyToSend.bits.serv_req >= - NUM_DESC_PER_RING_TX) { - if (pAdapter->TxRing.txDmaReadyToSend.bits. - serv_req_wrap) { - pAdapter->TxRing.txDmaReadyToSend.value = 0; - } else { - pAdapter->TxRing.txDmaReadyToSend.value = 0x400; - } - } - - DBG_TX(et131x_dbginfo, "Padding descriptor %d by %d bytes\n", - //pAdapter->TxRing.txDmaReadyToSend.value, - pAdapter->TxRing.txDmaReadyToSend.bits.serv_req, - NIC_MIN_PACKET_SIZE - pMpTcb->PacketLength); - } - - spin_lock_irqsave(&pAdapter->TCBSendQLock, lockflags2); - - if (pAdapter->TxRing.CurrSendTail) { - pAdapter->TxRing.CurrSendTail->Next = pMpTcb; - } else { - pAdapter->TxRing.CurrSendHead = pMpTcb; - } - - pAdapter->TxRing.CurrSendTail = pMpTcb; - - DBG_ASSERT(pMpTcb->Next == NULL); - - pAdapter->TxRing.nBusySend++; - - spin_unlock_irqrestore(&pAdapter->TCBSendQLock, lockflags2); - - /* Write the new write pointer back to the device. */ - writel(pAdapter->TxRing.txDmaReadyToSend.value, - &pAdapter->CSRAddress->txdma.service_request.value); - -#ifdef CONFIG_ET131X_DEBUG - DumpDeviceBlock(DBG_TX_ON, pAdapter, 1); -#endif - - /* For Gig only, we use Tx Interrupt coalescing. Enable the software - * timer to wake us up if this packet isn't followed by N more. - */ - if (pAdapter->uiLinkSpeed == TRUEPHY_SPEED_1000MBPS) { - writel(pAdapter->RegistryTxTimeInterval * NANO_IN_A_MICRO, - &pAdapter->CSRAddress->global.watchdog_timer); - } - - spin_unlock_irqrestore(&pAdapter->SendHWLock, lockflags1); - - DBG_TX_LEAVE(et131x_dbginfo); - return 0; -} - -#endif /** * et131x_free_send_packet - Recycle a MP_TCB, complete the packet if necessary - * @pAdapter: pointer to our adapter + * @etdev: pointer to our adapter * @pMpTcb: pointer to MP_TCB * * Assumption - Send spinlock has been acquired */ -__inline void et131x_free_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) +inline void et131x_free_send_packet(struct et131x_adapter *etdev, + PMP_TCB pMpTcb) { - unsigned long lockflags; + unsigned long flags; TX_DESC_ENTRY_t *desc = NULL; - struct net_device_stats *stats = &pAdapter->net_stats; + struct net_device_stats *stats = &etdev->net_stats; - if (MP_TEST_FLAG(pMpTcb, fMP_DEST_BROAD)) { - atomic_inc(&pAdapter->Stats.brdcstxmt); - } else if (MP_TEST_FLAG(pMpTcb, fMP_DEST_MULTI)) { - atomic_inc(&pAdapter->Stats.multixmt); - } else { - atomic_inc(&pAdapter->Stats.unixmt); - } + if (pMpTcb->Flags & fMP_DEST_BROAD) + atomic_inc(&etdev->Stats.brdcstxmt); + else if (pMpTcb->Flags & fMP_DEST_MULTI) + atomic_inc(&etdev->Stats.multixmt); + else + atomic_inc(&etdev->Stats.unixmt); if (pMpTcb->Packet) { stats->tx_bytes += pMpTcb->Packet->len; @@ -1256,60 +723,23 @@ __inline void et131x_free_send_packet(struct et131x_adapter *pAdapter, PMP_TCB p * corresponding to this packet and umap the fragments * they point to */ - DBG_TX(et131x_dbginfo, - "Unmap descriptors Here\n" - "TCB : 0x%p\n" - "TCB Next : 0x%p\n" - "TCB PacketLength : %d\n" - "TCB WrIndex.value : 0x%08x\n" - "TCB WrIndex.bits.val : %d\n" - "TCB WrIndex.value : 0x%08x\n" - "TCB WrIndex.bits.val : %d\n", - pMpTcb, - pMpTcb->Next, - pMpTcb->PacketLength, - pMpTcb->WrIndexStart.value, - pMpTcb->WrIndexStart.bits.val, - pMpTcb->WrIndex.value, - pMpTcb->WrIndex.bits.val); - do { desc = - (TX_DESC_ENTRY_t *) (pAdapter->TxRing. - pTxDescRingVa + - pMpTcb->WrIndexStart.bits.val); - - DBG_TX(et131x_dbginfo, - "CURRENT DESCRIPTOR\n" - "\tAddress : 0x%p\n" - "\tDataBufferPtrHigh : 0x%08x\n" - "\tDataBufferPtrLow : 0x%08x\n" - "\tword2 : 0x%08x\n" - "\tword3 : 0x%08x\n", - desc, - desc->DataBufferPtrHigh, - desc->DataBufferPtrLow, - desc->word2.value, - desc->word3.value); - - pci_unmap_single(pAdapter->pdev, + (TX_DESC_ENTRY_t *) (etdev->TxRing.pTxDescRingVa + + INDEX10(pMpTcb->WrIndexStart)); + + pci_unmap_single(etdev->pdev, desc->DataBufferPtrLow, desc->word2.value, PCI_DMA_TODEVICE); - if (++pMpTcb->WrIndexStart.bits.val >= + add_10bit(&pMpTcb->WrIndexStart, 1); + if (INDEX10(pMpTcb->WrIndexStart) >= NUM_DESC_PER_RING_TX) { - if (pMpTcb->WrIndexStart.bits.wrap) { - pMpTcb->WrIndexStart.value = 0; - } else { - pMpTcb->WrIndexStart.value = 0x400; - } + pMpTcb->WrIndexStart &= ~ET_DMA10_MASK; + pMpTcb->WrIndexStart ^= ET_DMA10_WRAP; } - } - while (desc != (pAdapter->TxRing.pTxDescRingVa + - pMpTcb->WrIndex.bits.val)); - - DBG_TX(et131x_dbginfo, - "Free Packet (SKB) : 0x%p\n", pMpTcb->Packet); + } while (desc != (etdev->TxRing.pTxDescRingVa + + INDEX10(pMpTcb->WrIndex))); dev_kfree_skb_any(pMpTcb->Packet); } @@ -1317,206 +747,183 @@ __inline void et131x_free_send_packet(struct et131x_adapter *pAdapter, PMP_TCB p memset(pMpTcb, 0, sizeof(MP_TCB)); /* Add the TCB to the Ready Q */ - spin_lock_irqsave(&pAdapter->TCBReadyQLock, lockflags); + spin_lock_irqsave(&etdev->TCBReadyQLock, flags); - pAdapter->Stats.opackets++; + etdev->Stats.opackets++; - if (pAdapter->TxRing.TCBReadyQueueTail) { - pAdapter->TxRing.TCBReadyQueueTail->Next = pMpTcb; + if (etdev->TxRing.TCBReadyQueueTail) { + etdev->TxRing.TCBReadyQueueTail->Next = pMpTcb; } else { /* Apparently ready Q is empty. */ - pAdapter->TxRing.TCBReadyQueueHead = pMpTcb; + etdev->TxRing.TCBReadyQueueHead = pMpTcb; } - pAdapter->TxRing.TCBReadyQueueTail = pMpTcb; + etdev->TxRing.TCBReadyQueueTail = pMpTcb; - spin_unlock_irqrestore(&pAdapter->TCBReadyQLock, lockflags); - - DBG_ASSERT(pAdapter->TxRing.nBusySend >= 0); + spin_unlock_irqrestore(&etdev->TCBReadyQLock, flags); + WARN_ON(etdev->TxRing.nBusySend < 0); } /** * et131x_free_busy_send_packets - Free and complete the stopped active sends - * @pAdapter: pointer to our adapter + * @etdev: pointer to our adapter * * Assumption - Send spinlock has been acquired */ -void et131x_free_busy_send_packets(struct et131x_adapter *pAdapter) +void et131x_free_busy_send_packets(struct et131x_adapter *etdev) { PMP_TCB pMpTcb; - struct list_head *pEntry; - unsigned long lockflags; + struct list_head *entry; + unsigned long flags; uint32_t FreeCounter = 0; - DBG_ENTER(et131x_dbginfo); - - while (!list_empty(&pAdapter->TxRing.SendWaitQueue)) { - spin_lock_irqsave(&pAdapter->SendWaitLock, lockflags); + while (!list_empty(&etdev->TxRing.SendWaitQueue)) { + spin_lock_irqsave(&etdev->SendWaitLock, flags); - pAdapter->TxRing.nWaitSend--; - spin_unlock_irqrestore(&pAdapter->SendWaitLock, lockflags); + etdev->TxRing.nWaitSend--; + spin_unlock_irqrestore(&etdev->SendWaitLock, flags); - pEntry = pAdapter->TxRing.SendWaitQueue.next; + entry = etdev->TxRing.SendWaitQueue.next; } - pAdapter->TxRing.nWaitSend = 0; + etdev->TxRing.nWaitSend = 0; /* Any packets being sent? Check the first TCB on the send list */ - spin_lock_irqsave(&pAdapter->TCBSendQLock, lockflags); + spin_lock_irqsave(&etdev->TCBSendQLock, flags); - pMpTcb = pAdapter->TxRing.CurrSendHead; + pMpTcb = etdev->TxRing.CurrSendHead; while ((pMpTcb != NULL) && (FreeCounter < NUM_TCB)) { PMP_TCB pNext = pMpTcb->Next; - pAdapter->TxRing.CurrSendHead = pNext; + etdev->TxRing.CurrSendHead = pNext; - if (pNext == NULL) { - pAdapter->TxRing.CurrSendTail = NULL; - } + if (pNext == NULL) + etdev->TxRing.CurrSendTail = NULL; - pAdapter->TxRing.nBusySend--; + etdev->TxRing.nBusySend--; - spin_unlock_irqrestore(&pAdapter->TCBSendQLock, lockflags); - - DBG_VERBOSE(et131x_dbginfo, "pMpTcb = 0x%p\n", pMpTcb); + spin_unlock_irqrestore(&etdev->TCBSendQLock, flags); FreeCounter++; - MP_FREE_SEND_PACKET_FUN(pAdapter, pMpTcb); + et131x_free_send_packet(etdev, pMpTcb); - spin_lock_irqsave(&pAdapter->TCBSendQLock, lockflags); + spin_lock_irqsave(&etdev->TCBSendQLock, flags); - pMpTcb = pAdapter->TxRing.CurrSendHead; + pMpTcb = etdev->TxRing.CurrSendHead; } - if (FreeCounter == NUM_TCB) { - DBG_ERROR(et131x_dbginfo, - "MpFreeBusySendPackets exitted loop for a bad reason\n"); - BUG(); - } + WARN_ON(FreeCounter == NUM_TCB); - spin_unlock_irqrestore(&pAdapter->TCBSendQLock, lockflags); + spin_unlock_irqrestore(&etdev->TCBSendQLock, flags); - pAdapter->TxRing.nBusySend = 0; - - DBG_LEAVE(et131x_dbginfo); + etdev->TxRing.nBusySend = 0; } /** * et131x_handle_send_interrupt - Interrupt handler for sending processing - * @pAdapter: pointer to our adapter + * @etdev: pointer to our adapter * * Re-claim the send resources, complete sends and get more to send from * the send wait queue. * * Assumption - Send spinlock has been acquired */ -void et131x_handle_send_interrupt(struct et131x_adapter *pAdapter) +void et131x_handle_send_interrupt(struct et131x_adapter *etdev) { - DBG_TX_ENTER(et131x_dbginfo); - /* Mark as completed any packets which have been sent by the device. */ - et131x_update_tcb_list(pAdapter); + et131x_update_tcb_list(etdev); /* If we queued any transmits because we didn't have any TCBs earlier, * dequeue and send those packets now, as long as we have free TCBs. */ - et131x_check_send_wait_list(pAdapter); - - DBG_TX_LEAVE(et131x_dbginfo); + et131x_check_send_wait_list(etdev); } /** * et131x_update_tcb_list - Helper routine for Send Interrupt handler - * @pAdapter: pointer to our adapter + * @etdev: pointer to our adapter * * Re-claims the send resources and completes sends. Can also be called as * part of the NIC send routine when the "ServiceComplete" indication has * wrapped. */ -static void et131x_update_tcb_list(struct et131x_adapter *pAdapter) +static void et131x_update_tcb_list(struct et131x_adapter *etdev) { - unsigned long lockflags; - DMA10W_t ServiceComplete; + unsigned long flags; + u32 ServiceComplete; PMP_TCB pMpTcb; + u32 index; - ServiceComplete.value = - readl(&pAdapter->CSRAddress->txdma.NewServiceComplete.value); + ServiceComplete = readl(&etdev->regs->txdma.NewServiceComplete); + index = INDEX10(ServiceComplete); /* Has the ring wrapped? Process any descriptors that do not have * the same "wrap" indicator as the current completion indicator */ - spin_lock_irqsave(&pAdapter->TCBSendQLock, lockflags); + spin_lock_irqsave(&etdev->TCBSendQLock, flags); + + pMpTcb = etdev->TxRing.CurrSendHead; - pMpTcb = pAdapter->TxRing.CurrSendHead; while (pMpTcb && - ServiceComplete.bits.wrap != pMpTcb->WrIndex.bits.wrap && - ServiceComplete.bits.val < pMpTcb->WrIndex.bits.val) { - pAdapter->TxRing.nBusySend--; - pAdapter->TxRing.CurrSendHead = pMpTcb->Next; - if (pMpTcb->Next == NULL) { - pAdapter->TxRing.CurrSendTail = NULL; - } + ((ServiceComplete ^ pMpTcb->WrIndex) & ET_DMA10_WRAP) && + index < INDEX10(pMpTcb->WrIndex)) { + etdev->TxRing.nBusySend--; + etdev->TxRing.CurrSendHead = pMpTcb->Next; + if (pMpTcb->Next == NULL) + etdev->TxRing.CurrSendTail = NULL; - spin_unlock_irqrestore(&pAdapter->TCBSendQLock, lockflags); - MP_FREE_SEND_PACKET_FUN(pAdapter, pMpTcb); - spin_lock_irqsave(&pAdapter->TCBSendQLock, lockflags); + spin_unlock_irqrestore(&etdev->TCBSendQLock, flags); + et131x_free_send_packet(etdev, pMpTcb); + spin_lock_irqsave(&etdev->TCBSendQLock, flags); /* Goto the next packet */ - pMpTcb = pAdapter->TxRing.CurrSendHead; + pMpTcb = etdev->TxRing.CurrSendHead; } while (pMpTcb && - ServiceComplete.bits.wrap == pMpTcb->WrIndex.bits.wrap && - ServiceComplete.bits.val > pMpTcb->WrIndex.bits.val) { - pAdapter->TxRing.nBusySend--; - pAdapter->TxRing.CurrSendHead = pMpTcb->Next; - if (pMpTcb->Next == NULL) { - pAdapter->TxRing.CurrSendTail = NULL; - } + !((ServiceComplete ^ pMpTcb->WrIndex) & ET_DMA10_WRAP) + && index > (pMpTcb->WrIndex & ET_DMA10_MASK)) { + etdev->TxRing.nBusySend--; + etdev->TxRing.CurrSendHead = pMpTcb->Next; + if (pMpTcb->Next == NULL) + etdev->TxRing.CurrSendTail = NULL; - spin_unlock_irqrestore(&pAdapter->TCBSendQLock, lockflags); - MP_FREE_SEND_PACKET_FUN(pAdapter, pMpTcb); - spin_lock_irqsave(&pAdapter->TCBSendQLock, lockflags); + spin_unlock_irqrestore(&etdev->TCBSendQLock, flags); + et131x_free_send_packet(etdev, pMpTcb); + spin_lock_irqsave(&etdev->TCBSendQLock, flags); /* Goto the next packet */ - pMpTcb = pAdapter->TxRing.CurrSendHead; + pMpTcb = etdev->TxRing.CurrSendHead; } /* Wake up the queue when we hit a low-water mark */ - if (pAdapter->TxRing.nBusySend <= (NUM_TCB / 3)) { - netif_wake_queue(pAdapter->netdev); - } + if (etdev->TxRing.nBusySend <= (NUM_TCB / 3)) + netif_wake_queue(etdev->netdev); - spin_unlock_irqrestore(&pAdapter->TCBSendQLock, lockflags); + spin_unlock_irqrestore(&etdev->TCBSendQLock, flags); } /** * et131x_check_send_wait_list - Helper routine for the interrupt handler - * @pAdapter: pointer to our adapter + * @etdev: pointer to our adapter * * Takes packets from the send wait queue and posts them to the device (if * room available). */ -static void et131x_check_send_wait_list(struct et131x_adapter *pAdapter) +static void et131x_check_send_wait_list(struct et131x_adapter *etdev) { - unsigned long lockflags; - - spin_lock_irqsave(&pAdapter->SendWaitLock, lockflags); - - while (!list_empty(&pAdapter->TxRing.SendWaitQueue) && - MP_TCB_RESOURCES_AVAILABLE(pAdapter)) { - struct list_head *pEntry; + unsigned long flags; - DBG_VERBOSE(et131x_dbginfo, "Tx packets on the wait queue\n"); + spin_lock_irqsave(&etdev->SendWaitLock, flags); - pEntry = pAdapter->TxRing.SendWaitQueue.next; + while (!list_empty(&etdev->TxRing.SendWaitQueue) && + MP_TCB_RESOURCES_AVAILABLE(etdev)) { + struct list_head *entry; - pAdapter->TxRing.nWaitSend--; + entry = etdev->TxRing.SendWaitQueue.next; - DBG_WARNING(et131x_dbginfo, - "MpHandleSendInterrupt - sent a queued pkt. Waiting %d\n", - pAdapter->TxRing.nWaitSend); + etdev->TxRing.nWaitSend--; } - spin_unlock_irqrestore(&pAdapter->SendWaitLock, lockflags); + spin_unlock_irqrestore(&etdev->SendWaitLock, flags); } |