diff options
Diffstat (limited to 'drivers/staging/et131x/et1310_tx.c')
| -rw-r--r-- | drivers/staging/et131x/et1310_tx.c | 550 |
1 files changed, 270 insertions, 280 deletions
diff --git a/drivers/staging/et131x/et1310_tx.c b/drivers/staging/et131x/et1310_tx.c index 30eaac4c8707..a017d271e375 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 @@ -74,9 +74,9 @@ #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> @@ -99,13 +99,13 @@ 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 @@ -127,7 +127,7 @@ int et131x_tx_dma_memory_alloc(struct et131x_adapter *adapter) 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"); @@ -238,10 +238,7 @@ 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; - } + kfree(adapter->TxRing.MpTcbMem); DBG_LEAVE(et131x_dbginfo); } @@ -250,16 +247,16 @@ void et131x_tx_dma_memory_free(struct et131x_adapter *adapter) * ConfigTxDmaRegs - Set up the tx dma section of the JAGCore. * @adapter: 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; + struct _TXDMA_t __iomem *pTxDma = &etdev->CSRAddress->txdma; DBG_ENTER(et131x_dbginfo); /* Load the hardware with the start of the transmit descriptor ring. */ - writel((uint32_t) (pAdapter->TxRing.pTxDescRingAdjustedPa >> 32), + writel((uint32_t) (etdev->TxRing.pTxDescRingAdjustedPa >> 32), &pTxDma->pr_base_hi); - writel((uint32_t) pAdapter->TxRing.pTxDescRingAdjustedPa, + writel((uint32_t) etdev->TxRing.pTxDescRingAdjustedPa, &pTxDma->pr_base_lo); /* Initialise the transmit DMA engine */ @@ -273,43 +270,43 @@ void ConfigTxDmaRegs(struct et131x_adapter *pAdapter) * storing the adjusted address. */ writel(0, &pTxDma->dma_wb_base_hi); - writel(pAdapter->TxRing.pTxStatusPa, &pTxDma->dma_wb_base_lo); + writel(etdev->TxRing.pTxStatusPa, &pTxDma->dma_wb_base_lo); - memset(pAdapter->TxRing.pTxStatusVa, 0, sizeof(TX_STATUS_BLOCK_t)); + memset(etdev->TxRing.pTxStatusVa, 0, sizeof(TX_STATUS_BLOCK_t)); writel(0, &pTxDma->service_request.value); - pAdapter->TxRing.txDmaReadyToSend.value = 0; + etdev->TxRing.txDmaReadyToSend.value = 0; DBG_LEAVE(et131x_dbginfo); } /** * 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); + writel(0x101, &etdev->CSRAddress->txdma.csr.value); DBG_LEAVE(et131x_dbginfo); } /** * 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); + if (etdev->RegistryPhyLoopbk) { + /* TxDMA is disabled for loopback operation. */ + writel(0x101, &etdev->CSRAddress->txdma.csr.value); } else { TXDMA_CSR_t csr = { 0 }; @@ -318,8 +315,8 @@ void et131x_tx_dma_enable(struct et131x_adapter *pAdapter) */ csr.bits.sngl_epkt_mode = 1; csr.bits.halt = 0; - csr.bits.cache_thrshld = pAdapter->RegistryDMACache; - writel(csr.value, &pAdapter->CSRAddress->txdma.csr.value); + csr.bits.cache_thrshld = etdev->RegistryDMACache; + writel(csr.value, &etdev->CSRAddress->txdma.csr.value); } DBG_LEAVE(et131x_dbginfo); @@ -380,11 +377,11 @@ 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; + struct et131x_adapter *etdev = NULL; DBG_TX_ENTER(et131x_dbginfo); - pAdapter = netdev_priv(netdev); + etdev = netdev_priv(netdev); /* Send these packets * @@ -393,8 +390,8 @@ 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. @@ -405,18 +402,21 @@ int et131x_send_packets(struct sk_buff *skb, struct net_device *netdev) /* 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"); + "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) { @@ -437,7 +437,7 @@ int et131x_send_packets(struct sk_buff *skb, struct net_device *netdev) dev_kfree_skb_any(skb); skb = NULL; - pAdapter->net_stats.tx_dropped++; + etdev->net_stats.tx_dropped++; } } } @@ -449,19 +449,19 @@ int et131x_send_packets(struct sk_buff *skb, struct net_device *netdev) /** * 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; + unsigned long flags; DBG_TX_ENTER(et131x_dbginfo); @@ -482,25 +482,24 @@ static int et131x_send_packet(struct sk_buff *skb, } /* 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); + spin_unlock_irqrestore(&etdev->TCBReadyQLock, flags); DBG_WARNING(et131x_dbginfo, "Can't obtain a TCB\n"); DBG_TX_LEAVE(et131x_dbginfo); 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; @@ -519,29 +518,28 @@ static int et131x_send_packet(struct sk_buff *skb, 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; + etdev->TxRing.TCBReadyQueueTail = pMpTcb; - spin_unlock_irqrestore(&pAdapter->TCBReadyQLock, lockflags); + spin_unlock_irqrestore(&etdev->TCBReadyQLock, flags); DBG_TX_LEAVE(et131x_dbginfo); return status; } - DBG_ASSERT(pAdapter->TxRing.nBusySend <= NUM_TCB); + DBG_ASSERT(etdev->TxRing.nBusySend <= NUM_TCB); DBG_TX_LEAVE(et131x_dbginfo); return 0; @@ -549,12 +547,12 @@ static int et131x_send_packet(struct sk_buff *skb, /** * 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]; @@ -563,7 +561,7 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) 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; + unsigned long flags; DBG_TX_ENTER(et131x_dbginfo); @@ -602,7 +600,7 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) "filling desc entry %d, " "TCB: 0x%p\n", (pPacket->len - pPacket->data_len), - pAdapter->TxRing.txDmaReadyToSend.bits. + etdev->TxRing.txDmaReadyToSend.bits. val, pMpTcb); CurDesc[FragmentNumber].DataBufferPtrHigh = 0; @@ -620,7 +618,7 @@ 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, @@ -631,7 +629,7 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) "filling desc entry %d, " "TCB: 0x%p\n", (pPacket->len - pPacket->data_len), - pAdapter->TxRing.txDmaReadyToSend.bits. + etdev->TxRing.txDmaReadyToSend.bits. val, pMpTcb); CurDesc[FragmentNumber].DataBufferPtrHigh = 0; @@ -649,7 +647,7 @@ 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 +667,7 @@ 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), @@ -683,7 +681,7 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) "filling desc entry %d\n" "TCB: 0x%p\n", pFragList[loopIndex].size, - pAdapter->TxRing.txDmaReadyToSend.bits.val, + etdev->TxRing.txDmaReadyToSend.bits.val, pMpTcb); CurDesc[FragmentNumber].DataBufferPtrHigh = 0; @@ -698,7 +696,7 @@ 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, @@ -711,11 +709,11 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) return -EIO; } - if (pAdapter->uiLinkSpeed == TRUEPHY_SPEED_1000MBPS) { - if (++pAdapter->TxRing.TxPacketsSinceLastinterrupt == - pAdapter->RegistryTxNumBuffers) { + if (etdev->uiLinkSpeed == TRUEPHY_SPEED_1000MBPS) { + if (++etdev->TxRing.TxPacketsSinceLastinterrupt == + etdev->RegistryTxNumBuffers) { CurDesc[FragmentNumber - 1].word3.value = 0x5; - pAdapter->TxRing.TxPacketsSinceLastinterrupt = 0; + etdev->TxRing.TxPacketsSinceLastinterrupt = 0; } else { CurDesc[FragmentNumber - 1].word3.value = 0x1; } @@ -725,13 +723,13 @@ 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; + NUM_DESC_PER_RING_TX - etdev->TxRing.txDmaReadyToSend.bits.val; if (iThisCopy >= FragmentNumber) { iRemainder = 0; @@ -740,71 +738,67 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) iRemainder = FragmentNumber - iThisCopy; } - memcpy(pAdapter->TxRing.pTxDescRingVa + - pAdapter->TxRing.txDmaReadyToSend.bits.val, CurDesc, + memcpy(etdev->TxRing.pTxDescRingVa + + etdev->TxRing.txDmaReadyToSend.bits.val, CurDesc, sizeof(TX_DESC_ENTRY_t) * iThisCopy); - pAdapter->TxRing.txDmaReadyToSend.bits.val += iThisCopy; + etdev->TxRing.txDmaReadyToSend.bits.val += iThisCopy; - if ((pAdapter->TxRing.txDmaReadyToSend.bits.val == 0) || - (pAdapter->TxRing.txDmaReadyToSend.bits.val == + if ((etdev->TxRing.txDmaReadyToSend.bits.val == 0) || + (etdev->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 (etdev->TxRing.txDmaReadyToSend.bits.wrap) + etdev->TxRing.txDmaReadyToSend.value = 0; + else + etdev->TxRing.txDmaReadyToSend.value = 0x400; } if (iRemainder) { - memcpy(pAdapter->TxRing.pTxDescRingVa, + memcpy(etdev->TxRing.pTxDescRingVa, CurDesc + iThisCopy, sizeof(TX_DESC_ENTRY_t) * iRemainder); - pAdapter->TxRing.txDmaReadyToSend.bits.val += iRemainder; + etdev->TxRing.txDmaReadyToSend.bits.val += iRemainder; } - if (pAdapter->TxRing.txDmaReadyToSend.bits.val == 0) { - if (pAdapter->TxRing.txDmaReadyToSend.value) { + if (etdev->TxRing.txDmaReadyToSend.bits.val == 0) { + if (etdev->TxRing.txDmaReadyToSend.value) pMpTcb->WrIndex.value = NUM_DESC_PER_RING_TX - 1; - } else { + else pMpTcb->WrIndex.value = 0x400 | (NUM_DESC_PER_RING_TX - 1); - } - } else { + } else pMpTcb->WrIndex.value = - pAdapter->TxRing.txDmaReadyToSend.value - 1; - } + etdev->TxRing.txDmaReadyToSend.value - 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); - 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.value, + &etdev->CSRAddress->txdma.service_request.value); /* 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->uiLinkSpeed == TRUEPHY_SPEED_1000MBPS) { + writel(etdev->RegistryTxTimeInterval * NANO_IN_A_MICRO, + &etdev->CSRAddress->global.watchdog_timer); } - spin_unlock_irqrestore(&pAdapter->SendHWLock, lockflags1); + spin_unlock_irqrestore(&etdev->SendHWLock, flags); DBG_TX_LEAVE(et131x_dbginfo); return 0; @@ -818,7 +812,7 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) /** * NICSendPacket - NIC specific send handler. - * @pAdapter: pointer to our adapter + * @etdev: pointer to our adapter * @pMpTcb: pointer to MP_TCB * * Returns 0 on succes, errno on failure. @@ -826,7 +820,7 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) * 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) +static int nic_send_packet(struct et131x_adapter *etdev, PMP_TCB pMpTcb) { uint32_t loopIndex, fragIndex, loopEnd; uint32_t iSplitFirstElement = 0; @@ -835,7 +829,7 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) TX_DESC_ENTRY_t *CurDescPostCopy = NULL; uint32_t SlotsAvailable; DMA10W_t ServiceComplete; - unsigned int lockflags1, lockflags2; + unsigned int flags; 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]; @@ -843,7 +837,7 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) DBG_TX_ENTER(et131x_dbginfo); ServiceComplete.value = - readl(&pAdapter->CSRAddress->txdma.NewServiceComplete.value); + readl(&etdev->CSRAddress->txdma.NewServiceComplete.value); /* * Attempt to fix TWO hardware bugs: @@ -862,7 +856,7 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) DBG_TX(et131x_dbginfo, "pMpTcb->PacketLength: %d\n", pMpTcb->PacketLength); - if ((pAdapter->uiDuplexMode == 0) + if ((etdev->uiDuplexMode == 0) && (pMpTcb->PacketLength < NIC_MIN_PACKET_SIZE)) { DBG_TX(et131x_dbginfo, "HALF DUPLEX mode AND len < MIN_PKT_SIZE\n"); @@ -870,39 +864,39 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) DBG_TX(et131x_dbginfo, "Even number of descs, split 1st elem\n"); iSplitFirstElement = 1; - //SegmentSize = pFragList[0].size / 2; + /* 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 = pFragList[0].size / 2; */ SegmentSize = (pPacket->len - pPacket->data_len) / 2; } - spin_lock_irqsave(&pAdapter->SendHWLock, lockflags1); + spin_lock_irqsave(&etdev->SendHWLock, flags); - if (pAdapter->TxRing.txDmaReadyToSend.bits.serv_req_wrap == + if (etdev->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 - + (etdev->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; + etdev->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); + spin_unlock_irqrestore(&etdev->SendHWLock, flags); return -ENOMEM; } @@ -918,9 +912,8 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) FragListCount, iSplitFirstElement, loopEnd); for (loopIndex = 0; loopIndex < loopEnd; loopIndex++) { - if (loopIndex > iSplitFirstElement) { + if (loopIndex > iSplitFirstElement) fragIndex++; - } DBG_TX(et131x_dbginfo, "In loop, loopIndex: %d\t fragIndex: %d\n", loopIndex, @@ -933,15 +926,19 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) "Packet Length %d," "filling desc entry %d\n", pPacket->len, - pAdapter->TxRing.txDmaReadyToSend.bits.serv_req); + etdev->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... + /* + * 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; + /* 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; @@ -965,7 +962,7 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) length_in_bytes = SegmentSize; CurDesc.DataBufferPtrLow = - pci_map_single(pAdapter-> + pci_map_single(etdev-> pdev, pPacket-> data, @@ -993,7 +990,7 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) pPacket->data_len) - SegmentSize); CurDesc.DataBufferPtrLow = - pci_map_single(pAdapter-> + pci_map_single(etdev-> pdev, (pPacket-> data + @@ -1017,7 +1014,7 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) pPacket->len - pPacket->data_len; CurDesc.DataBufferPtrLow = - pci_map_single(pAdapter->pdev, + pci_map_single(etdev->pdev, pPacket->data, (pPacket->len - pPacket->data_len), @@ -1031,7 +1028,7 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) CurDesc.word2.bits.length_in_bytes = pFragList[fragIndex - 1].size; CurDesc.DataBufferPtrLow = - pci_map_page(pAdapter->pdev, + pci_map_page(etdev->pdev, pFragList[fragIndex - 1].page, pFragList[fragIndex - 1].page_offset, @@ -1053,23 +1050,23 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) CurDesc.word3.bits.f = 1; pMpTcb->WrIndexStart = - pAdapter->TxRing.txDmaReadyToSend; + etdev->TxRing.txDmaReadyToSend; } if ((loopIndex == (loopEnd - 1)) && - (pAdapter->uiDuplexMode || + (etdev->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 == + if (etdev->uiLinkSpeed == TRUEPHY_SPEED_1000MBPS) { - if (++pAdapter->TxRing. + if (++etdev->TxRing. TxPacketsSinceLastinterrupt >= - pAdapter->RegistryTxNumBuffers) { + etdev->RegistryTxNumBuffers) { CurDesc.word3.value = 0x5; - pAdapter->TxRing. + etdev->TxRing. TxPacketsSinceLastinterrupt = 0; } else { @@ -1083,7 +1080,7 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) * of packet */ pMpTcb->WrIndex = - pAdapter->TxRing.txDmaReadyToSend; + etdev->TxRing.txDmaReadyToSend; pMpTcb->PacketStaleCount = 0; } @@ -1091,13 +1088,13 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) * descriptor ring at the next free entry. Advance * the "next free entry" variable */ - memcpy(pAdapter->TxRing.pTxDescRingVa + - pAdapter->TxRing.txDmaReadyToSend.bits.serv_req, + memcpy(etdev->TxRing.pTxDescRingVa + + etdev->TxRing.txDmaReadyToSend.bits.serv_req, &CurDesc, sizeof(TX_DESC_ENTRY_t)); CurDescPostCopy = - pAdapter->TxRing.pTxDescRingVa + - pAdapter->TxRing.txDmaReadyToSend.bits.serv_req; + etdev->TxRing.pTxDescRingVa + + etdev->TxRing.txDmaReadyToSend.bits.serv_req; DBG_TX(et131x_dbginfo, "CURRENT DESCRIPTOR\n" @@ -1112,32 +1109,32 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) CurDescPostCopy->word2.value, CurDescPostCopy->word3.value); - if (++pAdapter->TxRing.txDmaReadyToSend.bits.serv_req >= + if (++etdev->TxRing.txDmaReadyToSend.bits.serv_req >= NUM_DESC_PER_RING_TX) { - if (pAdapter->TxRing.txDmaReadyToSend.bits. + if (etdev->TxRing.txDmaReadyToSend.bits. serv_req_wrap) { - pAdapter->TxRing.txDmaReadyToSend. + etdev->TxRing.txDmaReadyToSend. value = 0; } else { - pAdapter->TxRing.txDmaReadyToSend. + etdev->TxRing.txDmaReadyToSend. value = 0x400; } } } } - if (pAdapter->uiDuplexMode == 0 && + if (etdev->uiDuplexMode == 0 && pMpTcb->PacketLength < NIC_MIN_PACKET_SIZE) { - // NOTE - Same 32/64-bit issue as above... + /* NOTE - Same 32/64-bit issue as above... */ CurDesc.DataBufferPtrHigh = 0x0; - CurDesc.DataBufferPtrLow = pAdapter->TxRing.pTxDummyBlkPa; + CurDesc.DataBufferPtrLow = etdev->TxRing.pTxDummyBlkPa; CurDesc.word2.value = 0; - if (pAdapter->uiLinkSpeed == TRUEPHY_SPEED_1000MBPS) { - if (++pAdapter->TxRing.TxPacketsSinceLastinterrupt >= - pAdapter->RegistryTxNumBuffers) { + if (etdev->uiLinkSpeed == TRUEPHY_SPEED_1000MBPS) { + if (++etdev->TxRing.TxPacketsSinceLastinterrupt >= + etdev->RegistryTxNumBuffers) { CurDesc.word3.value = 0x5; - pAdapter->TxRing.TxPacketsSinceLastinterrupt = + etdev->TxRing.TxPacketsSinceLastinterrupt = 0; } else { CurDesc.word3.value = 0x1; @@ -1149,15 +1146,15 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) CurDesc.word2.bits.length_in_bytes = NIC_MIN_PACKET_SIZE - pMpTcb->PacketLength; - pMpTcb->WrIndex = pAdapter->TxRing.txDmaReadyToSend; + pMpTcb->WrIndex = etdev->TxRing.txDmaReadyToSend; - memcpy(pAdapter->TxRing.pTxDescRingVa + - pAdapter->TxRing.txDmaReadyToSend.bits.serv_req, + memcpy(etdev->TxRing.pTxDescRingVa + + etdev->TxRing.txDmaReadyToSend.bits.serv_req, &CurDesc, sizeof(TX_DESC_ENTRY_t)); CurDescPostCopy = - pAdapter->TxRing.pTxDescRingVa + - pAdapter->TxRing.txDmaReadyToSend.bits.serv_req; + etdev->TxRing.pTxDescRingVa + + etdev->TxRing.txDmaReadyToSend.bits.serv_req; DBG_TX(et131x_dbginfo, "CURRENT DESCRIPTOR\n" @@ -1172,55 +1169,54 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) CurDescPostCopy->word2.value, CurDescPostCopy->word3.value); - if (++pAdapter->TxRing.txDmaReadyToSend.bits.serv_req >= + if (++etdev->TxRing.txDmaReadyToSend.bits.serv_req >= NUM_DESC_PER_RING_TX) { - if (pAdapter->TxRing.txDmaReadyToSend.bits. + if (etdev->TxRing.txDmaReadyToSend.bits. serv_req_wrap) { - pAdapter->TxRing.txDmaReadyToSend.value = 0; + etdev->TxRing.txDmaReadyToSend.value = 0; } else { - pAdapter->TxRing.txDmaReadyToSend.value = 0x400; + etdev->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, + /* etdev->TxRing.txDmaReadyToSend.value, */ + etdev->TxRing.txDmaReadyToSend.bits.serv_req, NIC_MIN_PACKET_SIZE - pMpTcb->PacketLength); } - 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); - 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.value, + &etdev->CSRAddress->txdma.service_request.value); #ifdef CONFIG_ET131X_DEBUG - DumpDeviceBlock(DBG_TX_ON, pAdapter, 1); + DumpDeviceBlock(DBG_TX_ON, etdev, 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); + if (etdev->uiLinkSpeed == TRUEPHY_SPEED_1000MBPS) { + writel(etdev->RegistryTxTimeInterval * NANO_IN_A_MICRO, + &etdev->CSRAddress->global.watchdog_timer); } - spin_unlock_irqrestore(&pAdapter->SendHWLock, lockflags1); + spin_unlock_irqrestore(&etdev->SendHWLock, flags); DBG_TX_LEAVE(et131x_dbginfo); return 0; @@ -1230,24 +1226,24 @@ static int nic_send_packet(struct et131x_adapter *pAdapter, PMP_TCB pMpTcb) /** * 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 (MP_TEST_FLAG(pMpTcb, fMP_DEST_BROAD)) + atomic_inc(&etdev->Stats.brdcstxmt); + else if (MP_TEST_FLAG(pMpTcb, fMP_DEST_MULTI)) + atomic_inc(&etdev->Stats.multixmt); + else + atomic_inc(&etdev->Stats.unixmt); if (pMpTcb->Packet) { stats->tx_bytes += pMpTcb->Packet->len; @@ -1275,7 +1271,7 @@ __inline void et131x_free_send_packet(struct et131x_adapter *pAdapter, PMP_TCB p do { desc = - (TX_DESC_ENTRY_t *) (pAdapter->TxRing. + (TX_DESC_ENTRY_t *) (etdev->TxRing. pTxDescRingVa + pMpTcb->WrIndexStart.bits.val); @@ -1292,20 +1288,18 @@ __inline void et131x_free_send_packet(struct et131x_adapter *pAdapter, PMP_TCB p desc->word2.value, desc->word3.value); - pci_unmap_single(pAdapter->pdev, + pci_unmap_single(etdev->pdev, desc->DataBufferPtrLow, desc->word2.value, PCI_DMA_TODEVICE); if (++pMpTcb->WrIndexStart.bits.val >= NUM_DESC_PER_RING_TX) { - if (pMpTcb->WrIndexStart.bits.wrap) { + if (pMpTcb->WrIndexStart.bits.wrap) pMpTcb->WrIndexStart.value = 0; - } else { + else pMpTcb->WrIndexStart.value = 0x400; - } } - } - while (desc != (pAdapter->TxRing.pTxDescRingVa + + } while (desc != (etdev->TxRing.pTxDescRingVa + pMpTcb->WrIndex.bits.val)); DBG_TX(et131x_dbginfo, @@ -1317,206 +1311,202 @@ __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); + spin_unlock_irqrestore(&etdev->TCBReadyQLock, flags); - DBG_ASSERT(pAdapter->TxRing.nBusySend >= 0); + DBG_ASSERT(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; + 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; + pEntry = 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); + spin_unlock_irqrestore(&etdev->TCBSendQLock, flags); DBG_VERBOSE(et131x_dbginfo, "pMpTcb = 0x%p\n", pMpTcb); FreeCounter++; - MP_FREE_SEND_PACKET_FUN(pAdapter, pMpTcb); + MP_FREE_SEND_PACKET_FUN(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"); + "MpFreeBusySendPackets exitted loop for a bad reason\n"); BUG(); } - spin_unlock_irqrestore(&pAdapter->TCBSendQLock, lockflags); + spin_unlock_irqrestore(&etdev->TCBSendQLock, flags); - pAdapter->TxRing.nBusySend = 0; + etdev->TxRing.nBusySend = 0; DBG_LEAVE(et131x_dbginfo); } /** * 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); + et131x_check_send_wait_list(etdev); DBG_TX_LEAVE(et131x_dbginfo); } /** * 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; + unsigned long flags; DMA10W_t ServiceComplete; PMP_TCB pMpTcb; ServiceComplete.value = - readl(&pAdapter->CSRAddress->txdma.NewServiceComplete.value); + readl(&etdev->CSRAddress->txdma.NewServiceComplete.value); /* 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 = 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; - } + 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); + MP_FREE_SEND_PACKET_FUN(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; - } + 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); + MP_FREE_SEND_PACKET_FUN(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; + unsigned long flags; - spin_lock_irqsave(&pAdapter->SendWaitLock, lockflags); + spin_lock_irqsave(&etdev->SendWaitLock, flags); - while (!list_empty(&pAdapter->TxRing.SendWaitQueue) && - MP_TCB_RESOURCES_AVAILABLE(pAdapter)) { + while (!list_empty(&etdev->TxRing.SendWaitQueue) && + MP_TCB_RESOURCES_AVAILABLE(etdev)) { struct list_head *pEntry; DBG_VERBOSE(et131x_dbginfo, "Tx packets on the wait queue\n"); - pEntry = pAdapter->TxRing.SendWaitQueue.next; + pEntry = etdev->TxRing.SendWaitQueue.next; - pAdapter->TxRing.nWaitSend--; + etdev->TxRing.nWaitSend--; DBG_WARNING(et131x_dbginfo, - "MpHandleSendInterrupt - sent a queued pkt. Waiting %d\n", - pAdapter->TxRing.nWaitSend); + "MpHandleSendInterrupt - sent a queued pkt. Waiting %d\n", + etdev->TxRing.nWaitSend); } - spin_unlock_irqrestore(&pAdapter->SendWaitLock, lockflags); + spin_unlock_irqrestore(&etdev->SendWaitLock, flags); } |