diff options
| -rw-r--r-- | drivers/net/tlan.c | 211 |
1 files changed, 77 insertions, 134 deletions
diff --git a/drivers/net/tlan.c b/drivers/net/tlan.c index 369eec7..85ef8b7 100644 --- a/drivers/net/tlan.c +++ b/drivers/net/tlan.c @@ -163,6 +163,11 @@ * v1.15 Apr 4, 2002 - Correct operation when aui=1 to be * 10T half duplex no loopback * Thanks to Gunnar Eikman + * + * Sakari Ailus <sakari.ailus@iki.fi>: + * + * v1.15a Dec 15 2008 - Remove bbuf support, it doesn't work anyway. + * *******************************************************************************/ #include <linux/module.h> @@ -213,12 +218,8 @@ static int debug; module_param(debug, int, 0); MODULE_PARM_DESC(debug, "ThunderLAN debug mask"); -static int bbuf; -module_param(bbuf, int, 0); -MODULE_PARM_DESC(bbuf, "ThunderLAN use big buffer (0-1)"); - static const char TLanSignature[] = "TLAN"; -static const char tlan_banner[] = "ThunderLAN driver v1.15\n"; +static const char tlan_banner[] = "ThunderLAN driver v1.15a\n"; static int tlan_have_pci; static int tlan_have_eisa; @@ -859,13 +860,8 @@ static int TLan_Init( struct net_device *dev ) priv = netdev_priv(dev); - if ( bbuf ) { - dma_size = ( TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS ) - * ( sizeof(TLanList) + TLAN_MAX_FRAME_SIZE ); - } else { - dma_size = ( TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS ) - * ( sizeof(TLanList) ); - } + dma_size = ( TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS ) + * ( sizeof(TLanList) ); priv->dmaStorage = pci_alloc_consistent(priv->pciDev, dma_size, &priv->dmaStorageDMA); priv->dmaSize = dma_size; @@ -881,16 +877,6 @@ static int TLan_Init( struct net_device *dev ) priv->txList = priv->rxList + TLAN_NUM_RX_LISTS; priv->txListDMA = priv->rxListDMA + sizeof(TLanList) * TLAN_NUM_RX_LISTS; - if ( bbuf ) { - priv->rxBuffer = (u8 *) ( priv->txList + TLAN_NUM_TX_LISTS ); - priv->rxBufferDMA =priv->txListDMA - + sizeof(TLanList) * TLAN_NUM_TX_LISTS; - priv->txBuffer = priv->rxBuffer - + ( TLAN_NUM_RX_LISTS * TLAN_MAX_FRAME_SIZE ); - priv->txBufferDMA = priv->rxBufferDMA - + ( TLAN_NUM_RX_LISTS * TLAN_MAX_FRAME_SIZE ); - } - err = 0; for ( i = 0; i < 6 ; i++ ) err |= TLan_EeReadByte( dev, @@ -1094,9 +1080,8 @@ static void TLan_tx_timeout_work(struct work_struct *work) static int TLan_StartTx( struct sk_buff *skb, struct net_device *dev ) { TLanPrivateInfo *priv = netdev_priv(dev); - TLanList *tail_list; dma_addr_t tail_list_phys; - u8 *tail_buffer; + TLanList *tail_list; unsigned long flags; unsigned int txlen; @@ -1125,15 +1110,10 @@ static int TLan_StartTx( struct sk_buff *skb, struct net_device *dev ) tail_list->forward = 0; - if ( bbuf ) { - tail_buffer = priv->txBuffer + ( priv->txTail * TLAN_MAX_FRAME_SIZE ); - skb_copy_from_linear_data(skb, tail_buffer, txlen); - } else { - tail_list->buffer[0].address = pci_map_single(priv->pciDev, - skb->data, txlen, - PCI_DMA_TODEVICE); - TLan_StoreSKB(tail_list, skb); - } + tail_list->buffer[0].address = pci_map_single(priv->pciDev, + skb->data, txlen, + PCI_DMA_TODEVICE); + TLan_StoreSKB(tail_list, skb); tail_list->frameSize = (u16) txlen; tail_list->buffer[0].count = TLAN_LAST_BUFFER | (u32) txlen; @@ -1163,9 +1143,6 @@ static int TLan_StartTx( struct sk_buff *skb, struct net_device *dev ) CIRC_INC( priv->txTail, TLAN_NUM_TX_LISTS ); - if ( bbuf ) - dev_kfree_skb_any(skb); - dev->trans_start = jiffies; return 0; @@ -1429,17 +1406,16 @@ static u32 TLan_HandleTxEOF( struct net_device *dev, u16 host_int ) head_list = priv->txList + priv->txHead; while (((tmpCStat = head_list->cStat ) & TLAN_CSTAT_FRM_CMP) && (ack < 255)) { + struct sk_buff *skb = TLan_GetSKB(head_list); + ack++; - if ( ! bbuf ) { - struct sk_buff *skb = TLan_GetSKB(head_list); - pci_unmap_single(priv->pciDev, head_list->buffer[0].address, - max(skb->len, - (unsigned int)TLAN_MIN_FRAME_SIZE), - PCI_DMA_TODEVICE); - dev_kfree_skb_any(skb); - head_list->buffer[8].address = 0; - head_list->buffer[9].address = 0; - } + pci_unmap_single(priv->pciDev, head_list->buffer[0].address, + max(skb->len, + (unsigned int)TLAN_MIN_FRAME_SIZE), + PCI_DMA_TODEVICE); + dev_kfree_skb_any(skb); + head_list->buffer[8].address = 0; + head_list->buffer[9].address = 0; if ( tmpCStat & TLAN_CSTAT_EOC ) eoc = 1; @@ -1549,7 +1525,6 @@ static u32 TLan_HandleRxEOF( struct net_device *dev, u16 host_int ) TLanPrivateInfo *priv = netdev_priv(dev); u32 ack = 0; int eoc = 0; - u8 *head_buffer; TLanList *head_list; struct sk_buff *skb; TLanList *tail_list; @@ -1564,53 +1539,33 @@ static u32 TLan_HandleRxEOF( struct net_device *dev, u16 host_int ) while (((tmpCStat = head_list->cStat) & TLAN_CSTAT_FRM_CMP) && (ack < 255)) { dma_addr_t frameDma = head_list->buffer[0].address; u32 frameSize = head_list->frameSize; + struct sk_buff *new_skb; + ack++; if (tmpCStat & TLAN_CSTAT_EOC) eoc = 1; - if (bbuf) { - skb = netdev_alloc_skb(dev, frameSize + 7); - if ( !skb ) - goto drop_and_reuse; - - head_buffer = priv->rxBuffer - + (priv->rxHead * TLAN_MAX_FRAME_SIZE); - skb_reserve(skb, 2); - pci_dma_sync_single_for_cpu(priv->pciDev, - frameDma, frameSize, - PCI_DMA_FROMDEVICE); - skb_copy_from_linear_data(skb, head_buffer, frameSize); - skb_put(skb, frameSize); - dev->stats.rx_bytes += frameSize; - - skb->protocol = eth_type_trans( skb, dev ); - netif_rx( skb ); - } else { - struct sk_buff *new_skb; + new_skb = netdev_alloc_skb(dev, TLAN_MAX_FRAME_SIZE + 7 ); + if ( !new_skb ) + goto drop_and_reuse; - new_skb = netdev_alloc_skb(dev, TLAN_MAX_FRAME_SIZE + 7 ); - if ( !new_skb ) - goto drop_and_reuse; + skb = TLan_GetSKB(head_list); + pci_unmap_single(priv->pciDev, frameDma, + TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE); + skb_put( skb, frameSize ); - skb = TLan_GetSKB(head_list); - pci_unmap_single(priv->pciDev, frameDma, - TLAN_MAX_FRAME_SIZE, PCI_DMA_FROMDEVICE); - skb_put( skb, frameSize ); + dev->stats.rx_bytes += frameSize; - dev->stats.rx_bytes += frameSize; + skb->protocol = eth_type_trans( skb, dev ); + netif_rx( skb ); - skb->protocol = eth_type_trans( skb, dev ); - netif_rx( skb ); + skb_reserve( new_skb, NET_IP_ALIGN ); + head_list->buffer[0].address = pci_map_single(priv->pciDev, + new_skb->data, + TLAN_MAX_FRAME_SIZE, + PCI_DMA_FROMDEVICE); - skb_reserve( new_skb, NET_IP_ALIGN ); - head_list->buffer[0].address = pci_map_single(priv->pciDev, - new_skb->data, - TLAN_MAX_FRAME_SIZE, - PCI_DMA_FROMDEVICE); - - TLan_StoreSKB(head_list, new_skb); - - } + TLan_StoreSKB(head_list, new_skb); drop_and_reuse: head_list->forward = 0; head_list->cStat = 0; @@ -1993,12 +1948,7 @@ static void TLan_ResetLists( struct net_device *dev ) for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) { list = priv->txList + i; list->cStat = TLAN_CSTAT_UNUSED; - if ( bbuf ) { - list->buffer[0].address = priv->txBufferDMA - + ( i * TLAN_MAX_FRAME_SIZE ); - } else { - list->buffer[0].address = 0; - } + list->buffer[0].address = 0; list->buffer[2].count = 0; list->buffer[2].address = 0; list->buffer[8].address = 0; @@ -2013,23 +1963,18 @@ static void TLan_ResetLists( struct net_device *dev ) list->cStat = TLAN_CSTAT_READY; list->frameSize = TLAN_MAX_FRAME_SIZE; list->buffer[0].count = TLAN_MAX_FRAME_SIZE | TLAN_LAST_BUFFER; - if ( bbuf ) { - list->buffer[0].address = priv->rxBufferDMA - + ( i * TLAN_MAX_FRAME_SIZE ); - } else { - skb = netdev_alloc_skb(dev, TLAN_MAX_FRAME_SIZE + 7 ); - if ( !skb ) { - pr_err("TLAN: out of memory for received data.\n" ); - break; - } - - skb_reserve( skb, NET_IP_ALIGN ); - list->buffer[0].address = pci_map_single(priv->pciDev, - skb->data, - TLAN_MAX_FRAME_SIZE, - PCI_DMA_FROMDEVICE); - TLan_StoreSKB(list, skb); + skb = netdev_alloc_skb(dev, TLAN_MAX_FRAME_SIZE + 7 ); + if ( !skb ) { + pr_err("TLAN: out of memory for received data.\n" ); + break; } + + skb_reserve( skb, NET_IP_ALIGN ); + list->buffer[0].address = pci_map_single(priv->pciDev, + skb->data, + TLAN_MAX_FRAME_SIZE, + PCI_DMA_FROMDEVICE); + TLan_StoreSKB(list, skb); list->buffer[1].count = 0; list->buffer[1].address = 0; list->forward = list_phys + sizeof(TLanList); @@ -2052,35 +1997,33 @@ static void TLan_FreeLists( struct net_device *dev ) TLanList *list; struct sk_buff *skb; - if ( ! bbuf ) { - for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) { - list = priv->txList + i; - skb = TLan_GetSKB(list); - if ( skb ) { - pci_unmap_single( - priv->pciDev, - list->buffer[0].address, - max(skb->len, - (unsigned int)TLAN_MIN_FRAME_SIZE), - PCI_DMA_TODEVICE); - dev_kfree_skb_any( skb ); - list->buffer[8].address = 0; - list->buffer[9].address = 0; - } + for ( i = 0; i < TLAN_NUM_TX_LISTS; i++ ) { + list = priv->txList + i; + skb = TLan_GetSKB(list); + if ( skb ) { + pci_unmap_single( + priv->pciDev, + list->buffer[0].address, + max(skb->len, + (unsigned int)TLAN_MIN_FRAME_SIZE), + PCI_DMA_TODEVICE); + dev_kfree_skb_any( skb ); + list->buffer[8].address = 0; + list->buffer[9].address = 0; } + } - for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ ) { - list = priv->rxList + i; - skb = TLan_GetSKB(list); - if ( skb ) { - pci_unmap_single(priv->pciDev, - list->buffer[0].address, - TLAN_MAX_FRAME_SIZE, - PCI_DMA_FROMDEVICE); - dev_kfree_skb_any( skb ); - list->buffer[8].address = 0; - list->buffer[9].address = 0; - } + for ( i = 0; i < TLAN_NUM_RX_LISTS; i++ ) { + list = priv->rxList + i; + skb = TLan_GetSKB(list); + if ( skb ) { + pci_unmap_single(priv->pciDev, + list->buffer[0].address, + TLAN_MAX_FRAME_SIZE, + PCI_DMA_FROMDEVICE); + dev_kfree_skb_any( skb ); + list->buffer[8].address = 0; + list->buffer[9].address = 0; } } } /* TLan_FreeLists */ |
