diff options
Diffstat (limited to 'drivers/net/forcedeth.c')
-rw-r--r-- | drivers/net/forcedeth.c | 535 |
1 files changed, 337 insertions, 198 deletions
diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c index d6eefdb71c1..525624fc03b 100644 --- a/drivers/net/forcedeth.c +++ b/drivers/net/forcedeth.c @@ -80,7 +80,7 @@ * into nv_close, otherwise reenabling for wol can * cause DMA to kfree'd memory. * 0.31: 14 Nov 2004: ethtool support for getting/setting link - * capabilities. + * capabilities. * 0.32: 16 Apr 2005: RX_ERROR4 handling added. * 0.33: 16 May 2005: Support for MCP51 added. * 0.34: 18 Jun 2005: Add DEV_NEED_LINKTIMER to all nForce nics. @@ -89,12 +89,17 @@ * 0.37: 10 Jul 2005: Additional ethtool support, cleanup of pci id list * 0.38: 16 Jul 2005: tx irq rewrite: Use global flags instead of * per-packet flags. - * 0.39: 18 Jul 2005: Add 64bit descriptor support. - * 0.40: 19 Jul 2005: Add support for mac address change. - * 0.41: 30 Jul 2005: Write back original MAC in nv_close instead + * 0.39: 18 Jul 2005: Add 64bit descriptor support. + * 0.40: 19 Jul 2005: Add support for mac address change. + * 0.41: 30 Jul 2005: Write back original MAC in nv_close instead * of nv_remove - * 0.42: 06 Aug 2005: Fix lack of link speed initialization + * 0.42: 06 Aug 2005: Fix lack of link speed initialization * in the second (and later) nv_open call + * 0.43: 10 Aug 2005: Add support for tx checksum. + * 0.44: 20 Aug 2005: Add support for scatter gather and segmentation. + * 0.45: 18 Sep 2005: Remove nv_stop/start_rx from every link check + * 0.46: 20 Oct 2005: Add irq optimization modes. + * 0.47: 26 Oct 2005: Add phyaddr 0 in phy scan. * * Known bugs: * We suspect that on some hardware no TX done interrupts are generated. @@ -106,7 +111,7 @@ * DEV_NEED_TIMERIRQ will not harm you on sane hardware, only generating a few * superfluous timer interrupts from the nic. */ -#define FORCEDETH_VERSION "0.41" +#define FORCEDETH_VERSION "0.47" #define DRV_NAME "forcedeth" #include <linux/module.h> @@ -145,6 +150,7 @@ #define DEV_NEED_LINKTIMER 0x0002 /* poll link settings. Relies on the timer irq */ #define DEV_HAS_LARGEDESC 0x0004 /* device supports jumbo frames and needs packet format 2 */ #define DEV_HAS_HIGH_DMA 0x0008 /* device supports 64bit dma */ +#define DEV_HAS_CHECKSUM 0x0010 /* device supports tx and rx checksum offloads */ enum { NvRegIrqStatus = 0x000, @@ -160,7 +166,8 @@ enum { #define NVREG_IRQ_LINK 0x0040 #define NVREG_IRQ_TX_ERROR 0x0080 #define NVREG_IRQ_TX1 0x0100 -#define NVREG_IRQMASK_WANTED 0x00df +#define NVREG_IRQMASK_THROUGHPUT 0x00df +#define NVREG_IRQMASK_CPU 0x0040 #define NVREG_IRQ_UNKNOWN (~(NVREG_IRQ_RX_ERROR|NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF|NVREG_IRQ_TX_ERR| \ NVREG_IRQ_TX_OK|NVREG_IRQ_TIMER|NVREG_IRQ_LINK|NVREG_IRQ_TX_ERROR| \ @@ -174,7 +181,8 @@ enum { * NVREG_POLL_DEFAULT=97 would result in an interval length of 1 ms */ NvRegPollingInterval = 0x00c, -#define NVREG_POLL_DEFAULT 970 +#define NVREG_POLL_DEFAULT_THROUGHPUT 970 +#define NVREG_POLL_DEFAULT_CPU 13 NvRegMisc1 = 0x080, #define NVREG_MISC1_HD 0x02 #define NVREG_MISC1_FORCE 0x3b0f3c @@ -241,6 +249,9 @@ enum { #define NVREG_TXRXCTL_IDLE 0x0008 #define NVREG_TXRXCTL_RESET 0x0010 #define NVREG_TXRXCTL_RXCHECK 0x0400 +#define NVREG_TXRXCTL_DESC_1 0 +#define NVREG_TXRXCTL_DESC_2 0x02100 +#define NVREG_TXRXCTL_DESC_3 0x02200 NvRegMIIStatus = 0x180, #define NVREG_MIISTAT_ERROR 0x0001 #define NVREG_MIISTAT_LINKCHANGE 0x0008 @@ -335,6 +346,10 @@ typedef union _ring_type { /* error and valid are the same for both */ #define NV_TX2_ERROR (1<<30) #define NV_TX2_VALID (1<<31) +#define NV_TX2_TSO (1<<28) +#define NV_TX2_TSO_SHIFT 14 +#define NV_TX2_CHECKSUM_L3 (1<<27) +#define NV_TX2_CHECKSUM_L4 (1<<26) #define NV_RX_DESCRIPTORVALID (1<<16) #define NV_RX_MISSEDFRAME (1<<17) @@ -417,14 +432,14 @@ typedef union _ring_type { /* * desc_ver values: - * This field has two purposes: - * - Newer nics uses a different ring layout. The layout is selected by - * comparing np->desc_ver with DESC_VER_xy. - * - It contains bits that are forced on when writing to NvRegTxRxControl. + * The nic supports three different descriptor types: + * - DESC_VER_1: Original + * - DESC_VER_2: support for jumbo frames. + * - DESC_VER_3: 64-bit format. */ -#define DESC_VER_1 0x0 -#define DESC_VER_2 (0x02100|NVREG_TXRXCTL_RXCHECK) -#define DESC_VER_3 (0x02200|NVREG_TXRXCTL_RXCHECK) +#define DESC_VER_1 1 +#define DESC_VER_2 2 +#define DESC_VER_3 3 /* PHY defines */ #define PHY_OUI_MARVELL 0x5043 @@ -491,6 +506,7 @@ struct fe_priv { u32 orig_mac[2]; u32 irqmask; u32 desc_ver; + u32 txrxctl_bits; void __iomem *base; @@ -527,6 +543,25 @@ struct fe_priv { */ static int max_interrupt_work = 5; +/* + * Optimization can be either throuput mode or cpu mode + * + * Throughput Mode: Every tx and rx packet will generate an interrupt. + * CPU Mode: Interrupts are controlled by a timer. + */ +#define NV_OPTIMIZATION_MODE_THROUGHPUT 0 +#define NV_OPTIMIZATION_MODE_CPU 1 +static int optimization_mode = NV_OPTIMIZATION_MODE_THROUGHPUT; + +/* + * Poll interval for timer irq + * + * This interval determines how frequent an interrupt is generated. + * The is value is determined by [(time_in_micro_secs * 100) / (2^10)] + * Min = 0, and Max = 65535 + */ +static int poll_interval = -1; + static inline struct fe_priv *get_nvpriv(struct net_device *dev) { return netdev_priv(dev); @@ -534,7 +569,7 @@ static inline struct fe_priv *get_nvpriv(struct net_device *dev) static inline u8 __iomem *get_hwbase(struct net_device *dev) { - return get_nvpriv(dev)->base; + return ((struct fe_priv *)netdev_priv(dev))->base; } static inline void pci_push(u8 __iomem *base) @@ -623,7 +658,7 @@ static int mii_rw(struct net_device *dev, int addr, int miireg, int value) static int phy_reset(struct net_device *dev) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); u32 miicontrol; unsigned int tries = 0; @@ -726,7 +761,7 @@ static int phy_init(struct net_device *dev) static void nv_start_rx(struct net_device *dev) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); u8 __iomem *base = get_hwbase(dev); dprintk(KERN_DEBUG "%s: nv_start_rx\n", dev->name); @@ -782,14 +817,14 @@ static void nv_stop_tx(struct net_device *dev) static void nv_txrx_reset(struct net_device *dev) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); u8 __iomem *base = get_hwbase(dev); dprintk(KERN_DEBUG "%s: nv_txrx_reset\n", dev->name); - writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->desc_ver, base + NvRegTxRxControl); + writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->txrxctl_bits, base + NvRegTxRxControl); pci_push(base); udelay(NV_TXRX_RESET_DELAY); - writel(NVREG_TXRXCTL_BIT2 | np->desc_ver, base + NvRegTxRxControl); + writel(NVREG_TXRXCTL_BIT2 | np->txrxctl_bits, base + NvRegTxRxControl); pci_push(base); } @@ -801,7 +836,7 @@ static void nv_txrx_reset(struct net_device *dev) */ static struct net_device_stats *nv_get_stats(struct net_device *dev) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); /* It seems that the nic always generates interrupts and doesn't * accumulate errors internally. Thus the current values in np->stats @@ -817,7 +852,7 @@ static struct net_device_stats *nv_get_stats(struct net_device *dev) */ static int nv_alloc_rx(struct net_device *dev) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); unsigned int refill_rx = np->refill_rx; int nr; @@ -861,7 +896,7 @@ static int nv_alloc_rx(struct net_device *dev) static void nv_do_rx_refill(unsigned long data) { struct net_device *dev = (struct net_device *) data; - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); disable_irq(dev->irq); if (nv_alloc_rx(dev)) { @@ -875,7 +910,7 @@ static void nv_do_rx_refill(unsigned long data) static void nv_init_rx(struct net_device *dev) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); int i; np->cur_rx = RX_RING; @@ -889,15 +924,17 @@ static void nv_init_rx(struct net_device *dev) static void nv_init_tx(struct net_device *dev) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); int i; np->next_tx = np->nic_tx = 0; - for (i = 0; i < TX_RING; i++) + for (i = 0; i < TX_RING; i++) { if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) np->tx_ring.orig[i].FlagLen = 0; else np->tx_ring.ex[i].FlagLen = 0; + np->tx_skbuff[i] = NULL; + } } static int nv_init_ring(struct net_device *dev) @@ -907,21 +944,44 @@ static int nv_init_ring(struct net_device *dev) return nv_alloc_rx(dev); } +static void nv_release_txskb(struct net_device *dev, unsigned int skbnr) +{ + struct fe_priv *np = netdev_priv(dev); + struct sk_buff *skb = np->tx_skbuff[skbnr]; + unsigned int j, entry, fragments; + + dprintk(KERN_INFO "%s: nv_release_txskb for skbnr %d, skb %p\n", + dev->name, skbnr, np->tx_skbuff[skbnr]); + + entry = skbnr; + if ((fragments = skb_shinfo(skb)->nr_frags) != 0) { + for (j = fragments; j >= 1; j--) { + skb_frag_t *frag = &skb_shinfo(skb)->frags[j-1]; + pci_unmap_page(np->pci_dev, np->tx_dma[entry], + frag->size, + PCI_DMA_TODEVICE); + entry = (entry - 1) % TX_RING; + } + } + pci_unmap_single(np->pci_dev, np->tx_dma[entry], + skb->len - skb->data_len, + PCI_DMA_TODEVICE); + dev_kfree_skb_irq(skb); + np->tx_skbuff[skbnr] = NULL; +} + static void nv_drain_tx(struct net_device *dev) { - struct fe_priv *np = get_nvpriv(dev); - int i; + struct fe_priv *np = netdev_priv(dev); + unsigned int i; + for (i = 0; i < TX_RING; i++) { if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) np->tx_ring.orig[i].FlagLen = 0; else np->tx_ring.ex[i].FlagLen = 0; if (np->tx_skbuff[i]) { - pci_unmap_single(np->pci_dev, np->tx_dma[i], - np->tx_skbuff[i]->len, - PCI_DMA_TODEVICE); - dev_kfree_skb(np->tx_skbuff[i]); - np->tx_skbuff[i] = NULL; + nv_release_txskb(dev, i); np->stats.tx_dropped++; } } @@ -929,7 +989,7 @@ static void nv_drain_tx(struct net_device *dev) static void nv_drain_rx(struct net_device *dev) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); int i; for (i = 0; i < RX_RING; i++) { if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) @@ -959,28 +1019,69 @@ static void drain_ring(struct net_device *dev) */ static int nv_start_xmit(struct sk_buff *skb, struct net_device *dev) { - struct fe_priv *np = get_nvpriv(dev); - int nr = np->next_tx % TX_RING; + struct fe_priv *np = netdev_priv(dev); + u32 tx_flags_extra = (np->desc_ver == DESC_VER_1 ? NV_TX_LASTPACKET : NV_TX2_LASTPACKET); + unsigned int fragments = skb_shinfo(skb)->nr_frags; + unsigned int nr = (np->next_tx + fragments) % TX_RING; + unsigned int i; + + spin_lock_irq(&np->lock); + + if ((np->next_tx - np->nic_tx + fragments) > TX_LIMIT_STOP) { + spin_unlock_irq(&np->lock); + netif_stop_queue(dev); + return NETDEV_TX_BUSY; + } np->tx_skbuff[nr] = skb; - np->tx_dma[nr] = pci_map_single(np->pci_dev, skb->data,skb->len, - PCI_DMA_TODEVICE); + + if (fragments) { + dprintk(KERN_DEBUG "%s: nv_start_xmit: buffer contains %d fragments\n", dev->name, fragments); + /* setup descriptors in reverse order */ + for (i = fragments; i >= 1; i--) { + skb_frag_t *frag = &skb_shinfo(skb)->frags[i-1]; + np->tx_dma[nr] = pci_map_page(np->pci_dev, frag->page, frag->page_offset, frag->size, + PCI_DMA_TODEVICE); - if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) + if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) { + np->tx_ring.orig[nr].PacketBuffer = cpu_to_le32(np->tx_dma[nr]); + np->tx_ring.orig[nr].FlagLen = cpu_to_le32( (frag->size-1) | np->tx_flags | tx_flags_extra); + } else { + np->tx_ring.ex[nr].PacketBufferHigh = cpu_to_le64(np->tx_dma[nr]) >> 32; + np->tx_ring.ex[nr].PacketBufferLow = cpu_to_le64(np->tx_dma[nr]) & 0x0FFFFFFFF; + np->tx_ring.ex[nr].FlagLen = cpu_to_le32( (frag->size-1) | np->tx_flags | tx_flags_extra); + } + + nr = (nr - 1) % TX_RING; + + if (np->desc_ver == DESC_VER_1) + tx_flags_extra &= ~NV_TX_LASTPACKET; + else + tx_flags_extra &= ~NV_TX2_LASTPACKET; + } + } + +#ifdef NETIF_F_TSO + if (skb_shinfo(skb)->tso_size) + tx_flags_extra |= NV_TX2_TSO | (skb_shinfo(skb)->tso_size << NV_TX2_TSO_SHIFT); + else +#endif + tx_flags_extra |= (skb->ip_summed == CHECKSUM_HW ? (NV_TX2_CHECKSUM_L3|NV_TX2_CHECKSUM_L4) : 0); + + np->tx_dma[nr] = pci_map_single(np->pci_dev, skb->data, skb->len-skb->data_len, + PCI_DMA_TODEVICE); + + if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) { np->tx_ring.orig[nr].PacketBuffer = cpu_to_le32(np->tx_dma[nr]); - else { + np->tx_ring.orig[nr].FlagLen = cpu_to_le32( (skb->len-skb->data_len-1) | np->tx_flags | tx_flags_extra); + } else { np->tx_ring.ex[nr].PacketBufferHigh = cpu_to_le64(np->tx_dma[nr]) >> 32; np->tx_ring.ex[nr].PacketBufferLow = cpu_to_le64(np->tx_dma[nr]) & 0x0FFFFFFFF; - } + np->tx_ring.ex[nr].FlagLen = cpu_to_le32( (skb->len-skb->data_len-1) | np->tx_flags | tx_flags_extra); + } - spin_lock_irq(&np->lock); - wmb(); - if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) - np->tx_ring.orig[nr].FlagLen = cpu_to_le32( (skb->len-1) | np->tx_flags ); - else - np->tx_ring.ex[nr].FlagLen = cpu_to_le32( (skb->len-1) | np->tx_flags ); - dprintk(KERN_DEBUG "%s: nv_start_xmit: packet packet %d queued for transmission.\n", - dev->name, np->next_tx); + dprintk(KERN_DEBUG "%s: nv_start_xmit: packet packet %d queued for transmission. tx_flags_extra: %x\n", + dev->name, np->next_tx, tx_flags_extra); { int j; for (j=0; j<64; j++) { @@ -991,15 +1092,13 @@ static int nv_start_xmit(struct sk_buff *skb, struct net_device *dev) dprintk("\n"); } - np->next_tx++; + np->next_tx += 1 + fragments; dev->trans_start = jiffies; - if (np->next_tx - np->nic_tx >= TX_LIMIT_STOP) - netif_stop_queue(dev); spin_unlock_irq(&np->lock); - writel(NVREG_TXRXCTL_KICK|np->desc_ver, get_hwbase(dev) + NvRegTxRxControl); + writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); pci_push(get_hwbase(dev)); - return 0; + return NETDEV_TX_OK; } /* @@ -1009,9 +1108,10 @@ static int nv_start_xmit(struct sk_buff *skb, struct net_device *dev) */ static void nv_tx_done(struct net_device *dev) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); u32 Flags; - int i; + unsigned int i; + struct sk_buff *skb; while (np->nic_tx != np->next_tx) { i = np->nic_tx % TX_RING; @@ -1026,35 +1126,38 @@ static void nv_tx_done(struct net_device *dev) if (Flags & NV_TX_VALID) break; if (np->desc_ver == DESC_VER_1) { - if (Flags & (NV_TX_RETRYERROR|NV_TX_CARRIERLOST|NV_TX_LATECOLLISION| - NV_TX_UNDERFLOW|NV_TX_ERROR)) { - if (Flags & NV_TX_UNDERFLOW) - np->stats.tx_fifo_errors++; - if (Flags & NV_TX_CARRIERLOST) - np->stats.tx_carrier_errors++; - np->stats.tx_errors++; - } else { - np->stats.tx_packets++; - np->stats.tx_bytes += np->tx_skbuff[i]->len; + if (Flags & NV_TX_LASTPACKET) { + skb = np->tx_skbuff[i]; + if (Flags & (NV_TX_RETRYERROR|NV_TX_CARRIERLOST|NV_TX_LATECOLLISION| + NV_TX_UNDERFLOW|NV_TX_ERROR)) { + if (Flags & NV_TX_UNDERFLOW) + np->stats.tx_fifo_errors++; + if (Flags & NV_TX_CARRIERLOST) + np->stats.tx_carrier_errors++; + np->stats.tx_errors++; + } else { + np->stats.tx_packets++; + np->stats.tx_bytes += skb->len; + } + nv_release_txskb(dev, i); } } else { - if (Flags & (NV_TX2_RETRYERROR|NV_TX2_CARRIERLOST|NV_TX2_LATECOLLISION| - NV_TX2_UNDERFLOW|NV_TX2_ERROR)) { - if (Flags & NV_TX2_UNDERFLOW) - np->stats.tx_fifo_errors++; - if (Flags & NV_TX2_CARRIERLOST) - np->stats.tx_carrier_errors++; - np->stats.tx_errors++; - } else { - np->stats.tx_packets++; - np->stats.tx_bytes += np->tx_skbuff[i]->len; + if (Flags & NV_TX2_LASTPACKET) { + skb = np->tx_skbuff[i]; + if (Flags & (NV_TX2_RETRYERROR|NV_TX2_CARRIERLOST|NV_TX2_LATECOLLISION| + NV_TX2_UNDERFLOW|NV_TX2_ERROR)) { + if (Flags & NV_TX2_UNDERFLOW) + np->stats.tx_fifo_errors++; + if (Flags & NV_TX2_CARRIERLOST) + np->stats.tx_carrier_errors++; + np->stats.tx_errors++; + } else { + np->stats.tx_packets++; + np->stats.tx_bytes += skb->len; + } + nv_release_txskb(dev, i); } } - pci_unmap_single(np->pci_dev, np->tx_dma[i], - np->tx_skbuff[i]->len, - PCI_DMA_TODEVICE); - dev_kfree_skb_irq(np->tx_skbuff[i]); - np->tx_skbuff[i] = NULL; np->nic_tx++; } if (np->next_tx - np->nic_tx < TX_LIMIT_START) @@ -1067,7 +1170,7 @@ static void nv_tx_done(struct net_device *dev) */ static void nv_tx_timeout(struct net_device *dev) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); u8 __iomem *base = get_hwbase(dev); printk(KERN_INFO "%s: Got tx_timeout. irq: %08x\n", dev->name, @@ -1200,7 +1303,7 @@ static int nv_getlen(struct net_device *dev, void *packet, int datalen) static void nv_rx_process(struct net_device *dev) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); u32 Flags; for (;;) { @@ -1249,67 +1352,71 @@ static void nv_rx_process(struct net_device *dev) if (!(Flags & NV_RX_DESCRIPTORVALID)) goto next_pkt; - if (Flags & NV_RX_MISSEDFRAME) { - np->stats.rx_missed_errors++; - np->stats.rx_errors++; - goto next_pkt; - } - if (Flags & (NV_RX_ERROR1|NV_RX_ERROR2|NV_RX_ERROR3)) { - np->stats.rx_errors++; - goto next_pkt; - } - if (Flags & NV_RX_CRCERR) { - np->stats.rx_crc_errors++; - np->stats.rx_errors++; - goto next_pkt; - } - if (Flags & NV_RX_OVERFLOW) { - np->stats.rx_over_errors++; - np->stats.rx_errors++; - goto next_pkt; - } - if (Flags & NV_RX_ERROR4) { - len = nv_getlen(dev, np->rx_skbuff[i]->data, len); - if (len < 0) { + if (Flags & NV_RX_ERROR) { + if (Flags & NV_RX_MISSEDFRAME) { + np->stats.rx_missed_errors++; np->stats.rx_errors++; goto next_pkt; } - } - /* framing errors are soft errors. */ - if (Flags & NV_RX_FRAMINGERR) { - if (Flags & NV_RX_SUBSTRACT1) { - len--; + if (Flags & (NV_RX_ERROR1|NV_RX_ERROR2|NV_RX_ERROR3)) { + np->stats.rx_errors++; + goto next_pkt; + } + if (Flags & NV_RX_CRCERR) { + np->stats.rx_crc_errors++; + np->stats.rx_errors++; + goto next_pkt; + } + if (Flags & NV_RX_OVERFLOW) { + np->stats.rx_over_errors++; + np->stats.rx_errors++; + goto next_pkt; + } + if (Flags & NV_RX_ERROR4) { + len = nv_getlen(dev, np->rx_skbuff[i]->data, len); + if (len < 0) { + np->stats.rx_errors++; + goto next_pkt; + } + } + /* framing errors are soft errors. */ + if (Flags & NV_RX_FRAMINGERR) { + if (Flags & NV_RX_SUBSTRACT1) { + len--; + } } } } else { if (!(Flags & NV_RX2_DESCRIPTORVALID)) goto next_pkt; - if (Flags & (NV_RX2_ERROR1|NV_RX2_ERROR2|NV_RX2_ERROR3)) { - np->stats.rx_errors++; - goto next_pkt; - } - if (Flags & NV_RX2_CRCERR) { - np->stats.rx_crc_errors++; - np->stats.rx_errors++; - goto next_pkt; - } - if (Flags & NV_RX2_OVERFLOW) { - np->stats.rx_over_errors++; - np->stats.rx_errors++; - goto next_pkt; - } - if (Flags & NV_RX2_ERROR4) { - len = nv_getlen(dev, np->rx_skbuff[i]->data, len); - if (len < 0) { + if (Flags & NV_RX2_ERROR) { + if (Flags & (NV_RX2_ERROR1|NV_RX2_ERROR2|NV_RX2_ERROR3)) { np->stats.rx_errors++; goto next_pkt; } - } - /* framing errors are soft errors */ - if (Flags & NV_RX2_FRAMINGERR) { - if (Flags & NV_RX2_SUBSTRACT1) { - len--; + if (Flags & NV_RX2_CRCERR) { + np->stats.rx_crc_errors++; + np->stats.rx_errors++; + goto next_pkt; + } + if (Flags & NV_RX2_OVERFLOW) { + np->stats.rx_over_errors++; + np->stats.rx_errors++; + goto next_pkt; + } + if (Flags & NV_RX2_ERROR4) { + len = nv_getlen(dev, np->rx_skbuff[i]->data, len); + if (len < 0) { + np->stats.rx_errors++; + goto next_pkt; + } + } + /* framing errors are soft errors */ + if (Flags & NV_RX2_FRAMINGERR) { + if (Flags & NV_RX2_SUBSTRACT1) { + len--; + } } } Flags &= NV_RX2_CHECKSUMMASK; @@ -1355,7 +1462,7 @@ static void set_bufsize(struct net_device *dev) */ static int nv_change_mtu(struct net_device *dev, int new_mtu) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); int old_mtu; if (new_mtu < 64 || new_mtu > np->pkt_limit) @@ -1408,7 +1515,7 @@ static int nv_change_mtu(struct net_device *dev, int new_mtu) writel( ((RX_RING-1) << NVREG_RINGSZ_RXSHIFT) + ((TX_RING-1) << NVREG_RINGSZ_TXSHIFT), base + NvRegRingSizes); pci_push(base); - writel(NVREG_TXRXCTL_KICK|np->desc_ver, get_hwbase(dev) + NvRegTxRxControl); + writel(NVREG_TXRXCTL_KICK|np->txrxctl_bits, get_hwbase(dev) + NvRegTxRxControl); pci_push(base); /* restart rx engine */ @@ -1440,7 +1547,7 @@ static void nv_copy_mac_to_hw(struct net_device *dev) */ static int nv_set_mac_address(struct net_device *dev, void *addr) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); struct sockaddr *macaddr = (struct sockaddr*)addr; if(!is_valid_ether_addr(macaddr->sa_data)) @@ -1475,7 +1582,7 @@ static int nv_set_mac_address(struct net_device *dev, void *addr) */ static void nv_set_multicast(struct net_device *dev) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); u8 __iomem *base = get_hwbase(dev); u32 addr[2]; u32 mask[2]; @@ -1533,9 +1640,20 @@ static void nv_set_multicast(struct net_device *dev) spin_unlock_irq(&np->lock); } +/** + * nv_update_linkspeed: Setup the MAC according to the link partner + * @dev: Network device to be configured + * + * The function queries the PHY and checks if there is a link partner. + * If yes, then it sets up the MAC accordingly. Otherwise, the MAC is + * set to 10 MBit HD. + * + * The function returns 0 if there is no link partner and 1 if there is + * a good link partner. + */ static int nv_update_linkspeed(struct net_device *dev) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); u8 __iomem *base = get_hwbase(dev); int adv, lpa; int newls = np->linkspeed; @@ -1672,13 +1790,11 @@ set_speed: static void nv_linkchange(struct net_device *dev) { if (nv_update_linkspeed(dev)) { - if (netif_carrier_ok(dev)) { - nv_stop_rx(dev); - } else { + if (!netif_carrier_ok(dev)) { netif_carrier_on(dev); printk(KERN_INFO "%s: link up.\n", dev->name); + nv_start_rx(dev); } - nv_start_rx(dev); } else { if (netif_carrier_ok(dev)) { netif_carrier_off(dev); @@ -1705,7 +1821,7 @@ static void nv_link_irq(struct net_device *dev) static irqreturn_t nv_nic_irq(int foo, void *data, struct pt_regs *regs) { struct net_device *dev = (struct net_device *) data; - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); u8 __iomem *base = get_hwbase(dev); u32 events; int i; @@ -1720,22 +1836,18 @@ static irqreturn_t nv_nic_irq(int foo, void *data, struct pt_regs *regs) if (!(events & np->irqmask)) break; - if (events & (NVREG_IRQ_TX1|NVREG_IRQ_TX_OK|NVREG_IRQ_TX_ERROR|NVREG_IRQ_TX_ERR)) { + spin_lock(&np->lock); + nv_tx_done(dev); + spin_unlock(&np->lock); + + nv_rx_process(dev); + if (nv_alloc_rx(dev)) { spin_lock(&np->lock); - nv_tx_done(dev); + if (!np->in_shutdown) + mod_timer(&np->oom_kick, jiffies + OOM_REFILL); spin_unlock(&np->lock); } - - if (events & (NVREG_IRQ_RX_ERROR|NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF)) { - nv_rx_process(dev); - if (nv_alloc_rx(dev)) { - spin_lock(&np->lock); - if (!np->in_shutdown) - mod_timer(&np->oom_kick, jiffies + OOM_REFILL); - spin_unlock(&np->lock); - } - } - + if (events & NVREG_IRQ_LINK) { spin_lock(&np->lock); nv_link_irq(dev); @@ -1777,7 +1889,7 @@ static irqreturn_t nv_nic_irq(int foo, void *data, struct pt_regs *regs) static void nv_do_nic_poll(unsigned long data) { struct net_device *dev = (struct net_device *) data; - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); u8 __iomem *base = get_hwbase(dev); disable_irq(dev->irq); @@ -1801,7 +1913,7 @@ static void nv_poll_controller(struct net_device *dev) static void nv_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); strcpy(info->driver, "forcedeth"); strcpy(info->version, FORCEDETH_VERSION); strcpy(info->bus_info, pci_name(np->pci_dev)); @@ -1809,7 +1921,7 @@ static void nv_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) static void nv_get_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); wolinfo->supported = WAKE_MAGIC; spin_lock_irq(&np->lock); @@ -1820,7 +1932,7 @@ static void nv_get_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo) static int nv_set_wol(struct net_device *dev, struct ethtool_wolinfo *wolinfo) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); u8 __iomem *base = get_hwbase(dev); spin_lock_irq(&np->lock); @@ -2021,7 +2133,7 @@ static int nv_get_regs_len(struct net_device *dev) static void nv_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *buf) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); u8 __iomem *base = get_hwbase(dev); u32 *rbuf = buf; int i; @@ -2035,7 +2147,7 @@ static void nv_get_regs(struct net_device *dev, struct ethtool_regs *regs, void static int nv_nway_reset(struct net_device *dev) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); int ret; spin_lock_irq(&np->lock); @@ -2065,11 +2177,12 @@ static struct ethtool_ops ops = { .get_regs_len = nv_get_regs_len, .get_regs = nv_get_regs, .nway_reset = nv_nway_reset, + .get_perm_addr = ethtool_op_get_perm_addr, }; static int nv_open(struct net_device *dev) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); u8 __iomem *base = get_hwbase(dev); int ret, oom, i; @@ -2114,9 +2227,9 @@ static int nv_open(struct net_device *dev) /* 5) continue setup */ writel(np->linkspeed, base + NvRegLinkSpeed); writel(NVREG_UNKSETUP3_VAL1, base + NvRegUnknownSetupReg3); - writel(np->desc_ver, base + NvRegTxRxControl); + writel(np->txrxctl_bits, base + NvRegTxRxControl); pci_push(base); - writel(NVREG_TXRXCTL_BIT1|np->desc_ver, base + NvRegTxRxControl); + writel(NVREG_TXRXCTL_BIT1|np->txrxctl_bits, base + NvRegTxRxControl); reg_delay(dev, NvRegUnknownSetupReg5, NVREG_UNKSETUP5_BIT31, NVREG_UNKSETUP5_BIT31, NV_SETUP5_DELAY, NV_SETUP5_DELAYMAX, KERN_INFO "open: SetupReg5, Bit 31 remained off\n"); @@ -2136,7 +2249,14 @@ static int nv_open(struct net_device *dev) writel(NVREG_RNDSEED_FORCE | (i&NVREG_RNDSEED_MASK), base + NvRegRandomSeed); writel(NVREG_UNKSETUP1_VAL, base + NvRegUnknownSetupReg1); writel(NVREG_UNKSETUP2_VAL, base + NvRegUnknownSetupReg2); - writel(NVREG_POLL_DEFAULT, base + NvRegPollingInterval); + if (poll_interval == -1) { + if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT) + writel(NVREG_POLL_DEFAULT_THROUGHPUT, base + NvRegPollingInterval); + else + writel(NVREG_POLL_DEFAULT_CPU, base + NvRegPollingInterval); + } + else + writel(poll_interval & 0xFFFF, base + NvRegPollingInterval); writel(NVREG_UNKSETUP6_VAL, base + NvRegUnknownSetupReg6); writel((np->phyaddr << NVREG_ADAPTCTL_PHYSHIFT)|NVREG_ADAPTCTL_PHYVALID|NVREG_ADAPTCTL_RUNNING, base + NvRegAdapterControl); @@ -2205,7 +2325,7 @@ out_drain: static int nv_close(struct net_device *dev) { - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); u8 __iomem *base; spin_lock_irq(&np->lock); @@ -2261,7 +2381,7 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i if (!dev) goto out; - np = get_nvpriv(dev); + np = netdev_priv(dev); np->pci_dev = pci_dev; spin_lock_init(&np->lock); SET_MODULE_OWNER(dev); @@ -2313,19 +2433,32 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i if (pci_set_dma_mask(pci_dev, 0x0000007fffffffffULL)) { printk(KERN_INFO "forcedeth: 64-bit DMA failed, using 32-bit addressing for device %s.\n", pci_name(pci_dev)); + } else { + dev->features |= NETIF_F_HIGHDMA; } + np->txrxctl_bits = NVREG_TXRXCTL_DESC_3; } else if (id->driver_data & DEV_HAS_LARGEDESC) { /* packet format 2: supports jumbo frames */ np->desc_ver = DESC_VER_2; + np->txrxctl_bits = NVREG_TXRXCTL_DESC_2; } else { /* original packet format */ np->desc_ver = DESC_VER_1; + np->txrxctl_bits = NVREG_TXRXCTL_DESC_1; } np->pkt_limit = NV_PKTLIMIT_1; if (id->driver_data & DEV_HAS_LARGEDESC) np->pkt_limit = NV_PKTLIMIT_2; + if (id->driver_data & DEV_HAS_CHECKSUM) { + np->txrxctl_bits |= NVREG_TXRXCTL_RXCHECK; + dev->features |= NETIF_F_HW_CSUM | NETIF_F_SG; +#ifdef NETIF_F_TSO + dev->features |= NETIF_F_TSO; +#endif + } + err = -ENOMEM; np->base = ioremap(addr, NV_PCI_REGSZ); if (!np->base) @@ -2377,8 +2510,9 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i dev->dev_addr[3] = (np->orig_mac[0] >> 16) & 0xff; dev->dev_addr[4] = (np->orig_mac[0] >> 8) & 0xff; dev->dev_addr[5] = (np->orig_mac[0] >> 0) & 0xff; + memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); - if (!is_valid_ether_addr(dev->dev_addr)) { + if (!is_valid_ether_addr(dev->perm_addr)) { /* * Bad mac address. At least one bios sets the mac address * to 01:23:45:67:89:ab @@ -2403,11 +2537,15 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i np->wolenabled = 0; if (np->desc_ver == DESC_VER_1) { - np->tx_flags = NV_TX_LASTPACKET|NV_TX_VALID; + np->tx_flags = NV_TX_VALID; } else { - np->tx_flags = NV_TX2_LASTPACKET|NV_TX2_VALID; + np->tx_flags = NV_TX2_VALID; } - np->irqmask = NVREG_IRQMASK_WANTED; + if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT) + np->irqmask = NVREG_IRQMASK_THROUGHPUT; + else + np->irqmask = NVREG_IRQMASK_CPU; + if (id->driver_data & DEV_NEED_TIMERIRQ) np->irqmask |= NVREG_IRQ_TIMER; if (id->driver_data & DEV_NEED_LINKTIMER) { @@ -2420,16 +2558,17 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i } /* find a suitable phy */ - for (i = 1; i < 32; i++) { + for (i = 1; i <= 32; i++) { int id1, id2; + int phyaddr = i & 0x1F; spin_lock_irq(&np->lock); - id1 = mii_rw(dev, i, MII_PHYSID1, MII_READ); + id1 = mii_rw(dev, phyaddr, MII_PHYSID1, MII_READ); spin_unlock_irq(&np->lock); if (id1 < 0 || id1 == 0xffff) continue; spin_lock_irq(&np->lock); - id2 = mii_rw(dev, i, MII_PHYSID2, MII_READ); + id2 = mii_rw(dev, phyaddr, MII_PHYSID2, MII_READ); spin_unlock_irq(&np->lock); if (id2 < 0 || id2 == 0xffff) continue; @@ -2437,23 +2576,19 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i id1 = (id1 & PHYID1_OUI_MASK) << PHYID1_OUI_SHFT; id2 = (id2 & PHYID2_OUI_MASK) >> PHYID2_OUI_SHFT; dprintk(KERN_DEBUG "%s: open: Found PHY %04x:%04x at address %d.\n", - pci_name(pci_dev), id1, id2, i); - np->phyaddr = i; + pci_name(pci_dev), id1, id2, phyaddr); + np->phyaddr = phyaddr; np->phy_oui = id1 | id2; break; } - if (i == 32) { - /* PHY in isolate mode? No phy attached and user wants to - * test loopback? Very odd, but can be correct. - */ + if (i == 33) { printk(KERN_INFO "%s: open: Could not find a valid PHY.\n", - pci_name(pci_dev)); - } - - if (i != 32) { - /* reset it */ - phy_init(dev); + pci_name(pci_dev)); + goto out_freering; } + + /* reset it */ + phy_init(dev); /* set default link speed settings */ np->linkspeed = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; @@ -2494,7 +2629,7 @@ out: static void __devexit nv_remove(struct pci_dev *pci_dev) { struct net_device *dev = pci_get_drvdata(pci_dev); - struct fe_priv *np = get_nvpriv(dev); + struct fe_priv *np = netdev_priv(dev); unregister_netdev(dev); @@ -2525,35 +2660,35 @@ static struct pci_device_id pci_tbl[] = { }, { /* nForce3 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_4), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM, }, { /* nForce3 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_5), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM, }, { /* nForce3 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_6), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM, }, { /* nForce3 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_7), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM, }, { /* CK804 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_8), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA, }, { /* CK804 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_9), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA, }, { /* MCP04 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_10), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA, }, { /* MCP04 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_11), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA, }, { /* MCP51 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_12), @@ -2565,11 +2700,11 @@ static struct pci_device_id pci_tbl[] = { }, { /* MCP55 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_14), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA, }, { /* MCP55 Ethernet Controller */ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_15), - .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA, + .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA, }, {0,}, }; @@ -2595,6 +2730,10 @@ static void __exit exit_nic(void) module_param(max_interrupt_work, int, 0); MODULE_PARM_DESC(max_interrupt_work, "forcedeth maximum events handled per interrupt"); +module_param(optimization_mode, int, 0); +MODULE_PARM_DESC(optimization_mode, "In throughput mode (0), every tx & rx packet will generate an interrupt. In CPU mode (1), interrupts are controlled by a timer."); +module_param(poll_interval, int, 0); +MODULE_PARM_DESC(poll_interval, "Interval determines how frequent timer interrupt is generated by [(time_in_micro_secs * 100) / (2^10)]. Min is 0 and Max is 65535."); MODULE_AUTHOR("Manfred Spraul <manfred@colorfullife.com>"); MODULE_DESCRIPTION("Reverse Engineered nForce ethernet driver"); |