diff options
Diffstat (limited to 'drivers/net/gt96100eth.c')
| -rw-r--r-- | drivers/net/gt96100eth.c | 170 |
1 files changed, 85 insertions, 85 deletions
diff --git a/drivers/net/gt96100eth.c b/drivers/net/gt96100eth.c index 2b4db7414475..5a6d830754da 100644 --- a/drivers/net/gt96100eth.c +++ b/drivers/net/gt96100eth.c @@ -17,9 +17,9 @@ * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. * * Ethernet driver for the MIPS GT96100 Advanced Communication Controller. - * + * * Revision history - * + * * 11.11.2001 Moved to 2.4.14, ppopov@mvista.com. Modified driver to add * proper gt96100A support. * 12.05.2001 Moved eth port 0 to irq 3 (mapped to GT_SERINT0 on EV96100A) @@ -160,9 +160,9 @@ chip_name(int chip_rev) static void * dmaalloc(size_t size, dma_addr_t *dma_handle) { void *ret; - + ret = (void *)__get_free_pages(GFP_ATOMIC | GFP_DMA, get_order(size)); - + if (ret != NULL) { dma_cache_inv((unsigned long)ret, size); if (dma_handle != NULL) @@ -194,7 +194,7 @@ parse_mac_addr(struct net_device *dev, char* macstr) { int i, j; unsigned char result, value; - + for (i=0; i<6; i++) { result = 0; if (i != 5 && *(macstr+2) != '.') { @@ -202,10 +202,10 @@ parse_mac_addr(struct net_device *dev, char* macstr) i, *(macstr+2)); return -EINVAL; } - + for (j=0; j<2; j++) { if (isxdigit(*macstr) && - (value = isdigit(*macstr) ? *macstr-'0' : + (value = isdigit(*macstr) ? *macstr-'0' : toupper(*macstr)-'A'+10) < 16) { result = result*16 + value; macstr++; @@ -241,7 +241,7 @@ read_MII(int phy_addr, u32 reg) return -ENODEV; } } - + GT96100_WRITE(GT96100_ETH_SMI_REG, smir); timedout = 20; @@ -249,7 +249,7 @@ read_MII(int phy_addr, u32 reg) while (!((smir = GT96100_READ(GT96100_ETH_SMI_REG)) & smirReadValid)) { // snooze for 1 msec and check again gt96100_delay(1); - + if (--timedout == 0) { printk(KERN_ERR "%s: timeout!!\n", __FUNCTION__); return -ENODEV; @@ -301,7 +301,7 @@ write_MII(int phy_addr, u32 reg, u16 data) while (GT96100_READ(GT96100_ETH_SMI_REG) & smirBusy) { // snooze for 1 msec and check again gt96100_delay(1); - + if (--timedout == 0) { printk(KERN_ERR "%s: busy timeout!!\n", __FUNCTION__); return -1; @@ -317,7 +317,7 @@ dump_MII(int dbg_lvl, struct net_device *dev) { int i, val; struct gt96100_private *gp = netdev_priv(dev); - + if (dbg_lvl <= GT96100_DEBUG) { for (i=0; i<7; i++) { if ((val = read_MII(gp->phy_addr, i)) >= 0) @@ -336,7 +336,7 @@ dump_hw_addr(int dbg_lvl, struct net_device *dev, const char* pfx, { int i; char buf[100], octet[5]; - + if (dbg_lvl <= GT96100_DEBUG) { sprintf(buf, pfx, func); for (i = 0; i < 6; i++) { @@ -354,13 +354,13 @@ dump_skb(int dbg_lvl, struct net_device *dev, struct sk_buff *skb) { int i; unsigned char* skbdata; - + if (dbg_lvl <= GT96100_DEBUG) { dbg(dbg_lvl, "%s: skb=%p, skb->data=%p, skb->len=%d\n", __FUNCTION__, skb, skb->data, skb->len); skbdata = (unsigned char*)KSEG1ADDR(skb->data); - + for (i=0; i<skb->len; i++) { if (!(i % 16)) printk(KERN_DEBUG "\n %3.3x: %2.2x,", @@ -406,7 +406,7 @@ gt96100_add_hash_entry(struct net_device *dev, unsigned char* addr) } dump_hw_addr(3, dev, "%s: nib swap/invt addr=", __FUNCTION__, hash_ea); - + if (gp->hash_mode == 0) { hashResult = ((u16)hash_ea[0] & 0xfc) << 7; stmp = ((u16)hash_ea[0] & 0x03) | @@ -423,7 +423,7 @@ gt96100_add_hash_entry(struct net_device *dev, unsigned char* addr) tblEntryAddr = (u32 *)(&gp->hash_table[((u32)hashResult & 0x7ff) << 3]); - + dbg(3, "%s: tblEntryAddr=%p\n", tblEntryAddr, __FUNCTION__); for (i=0; i<HASH_HOP_NUMBER; i++) { @@ -431,7 +431,7 @@ gt96100_add_hash_entry(struct net_device *dev, unsigned char* addr) !(*tblEntryAddr & hteSkip)) { // This entry is already occupied, go to next entry tblEntryAddr += 2; - dbg(3, "%s: skipping to %p\n", __FUNCTION__, + dbg(3, "%s: skipping to %p\n", __FUNCTION__, tblEntryAddr); } else { memset(tblEntryAddr, 0, 8); @@ -455,7 +455,7 @@ gt96100_add_hash_entry(struct net_device *dev, unsigned char* addr) } #endif - + return 0; } @@ -465,7 +465,7 @@ read_mib_counters(struct gt96100_private *gp) { u32* mib_regs = (u32*)&gp->mib; int i; - + for (i=0; i<sizeof(mib_counters_t)/sizeof(u32); i++) mib_regs[i] = GT96100ETH_READ(gp, GT96100_ETH_MIB_COUNT_BASE + i*sizeof(u32)); @@ -477,9 +477,9 @@ update_stats(struct gt96100_private *gp) { mib_counters_t *mib = &gp->mib; struct net_device_stats *stats = &gp->stats; - + read_mib_counters(gp); - + stats->rx_packets = mib->totalFramesReceived; stats->tx_packets = mib->framesSent; stats->rx_bytes = mib->totalByteReceived; @@ -512,7 +512,7 @@ abort(struct net_device *dev, u32 abort_bits) // make sure only the Rx/Tx abort bits are set abort_bits &= (sdcmrAR | sdcmrAT); - + spin_lock(&gp->lock); // abort any Rx/Tx DMA immediately @@ -525,7 +525,7 @@ abort(struct net_device *dev, u32 abort_bits) while (GT96100ETH_READ(gp, GT96100_ETH_SDMA_COMM) & abort_bits) { // snooze for 1 msec and check again gt96100_delay(1); - + if (--timedout == 0) { err("%s: timeout!!\n", __FUNCTION__); break; @@ -563,7 +563,7 @@ enable_ether_irq(struct net_device *dev) */ int intr_mask_reg = (gp->port_num == 0) ? GT96100_SERINT0_MASK : GT96100_INT0_HIGH_MASK; - + if (gp->chip_rev >= REV_GT96100A_1) { intMask = icrTxBufferLow | icrTxEndLow | icrTxErrorLow | icrRxOVR | icrTxUdr | @@ -576,10 +576,10 @@ enable_ether_irq(struct net_device *dev) icrRxBuffer | icrRxError | icrMIIPhySTC | icrEtherIntSum; } - + // unmask interrupts GT96100ETH_WRITE(gp, GT96100_ETH_INT_MASK, intMask); - + intMask = GT96100_READ(intr_mask_reg); intMask |= 1<<gp->port_num; GT96100_WRITE(intr_mask_reg, intMask); @@ -596,7 +596,7 @@ disable_ether_irq(struct net_device *dev) intMask = GT96100_READ(intr_mask_reg); intMask &= ~(1<<gp->port_num); GT96100_WRITE(intr_mask_reg, intMask); - + GT96100ETH_WRITE(gp, GT96100_ETH_INT_MASK, 0); } @@ -643,13 +643,13 @@ static int __init gt96100_probe1(struct pci_dev *pci, int port_num) int retval; unsigned char chip_rev; struct net_device *dev = NULL; - + if (gtif->irq < 0) { printk(KERN_ERR "%s: irq unknown - probing not supported\n", __FUNCTION__); return -ENODEV; } - + pci_read_config_byte(pci, PCI_REVISION_ID, &chip_rev); if (chip_rev >= REV_GT96100A_1) { @@ -665,14 +665,14 @@ static int __init gt96100_probe1(struct pci_dev *pci, int port_num) phyAD |= phy_addr << (port_num*5); GT96100_WRITE(GT96100_ETH_PHY_ADDR_REG, phyAD); } - + // probe for the external PHY if ((phy_id1 = read_MII(phy_addr, 2)) <= 0 || (phy_id2 = read_MII(phy_addr, 3)) <= 0) { printk(KERN_ERR "%s: no PHY found on MII%d\n", __FUNCTION__, port_num); return -ENODEV; } - + if (!request_region(gtif->iobase, GT96100_ETH_IO_SIZE, "GT96100ETH")) { printk(KERN_ERR "%s: request_region failed\n", __FUNCTION__); return -EBUSY; @@ -682,7 +682,7 @@ static int __init gt96100_probe1(struct pci_dev *pci, int port_num) if (!dev) goto out; gtif->dev = dev; - + /* private struct aligned and zeroed by alloc_etherdev */ /* Fill in the 'dev' fields. */ dev->base_addr = gtif->iobase; @@ -720,12 +720,12 @@ static int __init gt96100_probe1(struct pci_dev *pci, int port_num) retval = -ENOMEM; goto out1; } - + gp->tx_ring = (gt96100_td_t *)(gp->rx_ring + RX_RING_SIZE); gp->tx_ring_dma = gp->rx_ring_dma + sizeof(gt96100_rd_t) * RX_RING_SIZE; } - + // Allocate the Rx Data Buffers if (gp->rx_buff == NULL) { gp->rx_buff = dmaalloc(PKT_BUF_SZ*RX_RING_SIZE, @@ -735,7 +735,7 @@ static int __init gt96100_probe1(struct pci_dev *pci, int port_num) goto out2; } } - + dbg(3, "%s: rx_ring=%p, tx_ring=%p\n", __FUNCTION__, gp->rx_ring, gp->tx_ring); @@ -748,11 +748,11 @@ static int __init gt96100_probe1(struct pci_dev *pci, int port_num) goto out3; } } - + dbg(3, "%s: hash=%p\n", __FUNCTION__, gp->hash_table); spin_lock_init(&gp->lock); - + dev->open = gt96100_open; dev->hard_start_xmit = gt96100_tx; dev->stop = gt96100_close; @@ -812,7 +812,7 @@ reset_tx(struct net_device *dev) } /* Wrap the ring. */ gp->tx_ring[i-1].next = cpu_to_dma32(gp->tx_ring_dma); - + // setup only the lowest priority TxCDP reg GT96100ETH_WRITE(gp, GT96100_ETH_CURR_TX_DESC_PTR0, gp->tx_ring_dma); GT96100ETH_WRITE(gp, GT96100_ETH_CURR_TX_DESC_PTR1, 0); @@ -830,7 +830,7 @@ reset_rx(struct net_device *dev) int i; abort(dev, sdcmrAR); - + for (i=0; i<RX_RING_SIZE; i++) { gp->rx_ring[i].next = cpu_to_dma32(gp->rx_ring_dma + @@ -876,7 +876,7 @@ gt96100_check_tx_consistent(struct gt96100_private *gp) diff = diff<0 ? TX_RING_SIZE + diff : diff; diff = gp->tx_count == TX_RING_SIZE ? diff + TX_RING_SIZE : diff; - + return (diff != gp->tx_count); } @@ -886,16 +886,16 @@ gt96100_init(struct net_device *dev) struct gt96100_private *gp = netdev_priv(dev); u32 tmp; u16 mii_reg; - + dbg(3, "%s: dev=%p\n", __FUNCTION__, dev); - dbg(3, "%s: scs10_lo=%4x, scs10_hi=%4x\n", __FUNCTION__, + dbg(3, "%s: scs10_lo=%4x, scs10_hi=%4x\n", __FUNCTION__, GT96100_READ(0x8), GT96100_READ(0x10)); dbg(3, "%s: scs32_lo=%4x, scs32_hi=%4x\n", __FUNCTION__, GT96100_READ(0x18), GT96100_READ(0x20)); - + // Stop and disable Port hard_stop(dev); - + // Setup CIU Arbiter tmp = GT96100_READ(GT96100_CIU_ARBITER_CONFIG); tmp |= (0x0c << (gp->port_num*2)); // set Ether DMA req priority to hi @@ -905,7 +905,7 @@ gt96100_init(struct net_device *dev) tmp |= (1<<31); #endif GT96100_WRITE(GT96100_CIU_ARBITER_CONFIG, tmp); - dbg(3, "%s: CIU Config=%x/%x\n", __FUNCTION__, + dbg(3, "%s: CIU Config=%x/%x\n", __FUNCTION__, tmp, GT96100_READ(GT96100_CIU_ARBITER_CONFIG)); // Set routing. @@ -917,7 +917,7 @@ gt96100_init(struct net_device *dev) tmp = GT96100_READ(GT96100_GPP_CONFIG2); tmp |= 0x7fff << (gp->port_num*16); GT96100_WRITE(GT96100_GPP_CONFIG2, tmp); - + /* Set up MII port pin directions */ tmp = GT96100_READ(GT96100_GPP_IO2); tmp |= 0x003d << (gp->port_num*16); @@ -953,7 +953,7 @@ gt96100_init(struct net_device *dev) mii_reg = read_MII(gp->phy_addr, 0x11); /* int enable register */ mii_reg |= 2; /* enable mii interrupt */ write_MII(gp->phy_addr, 0x11, mii_reg); - + dbg(3, "%s: PhyAD=%x\n", __FUNCTION__, GT96100_READ(GT96100_ETH_PHY_ADDR_REG)); @@ -976,12 +976,12 @@ gt96100_init(struct net_device *dev) GT96100ETH_WRITE(gp, GT96100_ETH_SDMA_COMM, sdcmrERD); dbg(3, "%s: SDMA Comm=%x\n", __FUNCTION__, GT96100ETH_READ(gp, GT96100_ETH_SDMA_COMM)); - + // enable this port (set hash size to 1/2K) GT96100ETH_WRITE(gp, GT96100_ETH_PORT_CONFIG, pcrEN | pcrHS); dbg(3, "%s: Port Config=%x\n", __FUNCTION__, GT96100ETH_READ(gp, GT96100_ETH_PORT_CONFIG)); - + /* * Disable all Type-of-Service queueing. All Rx packets will be * treated normally and will be sent to the lowest priority @@ -998,7 +998,7 @@ gt96100_init(struct net_device *dev) GT96100ETH_WRITE(gp, GT96100_ETH_PORT_CONFIG_EXT, pcxrFCTL | pcxrFCTLen | pcxrFLP | pcxrPRIOrxOverride | pcxrMIBclrMode); - + dbg(3, "%s: Port Config Ext=%x\n", __FUNCTION__, GT96100ETH_READ(gp, GT96100_ETH_PORT_CONFIG_EXT)); @@ -1018,7 +1018,7 @@ static int gt96100_open(struct net_device *dev) { int retval; - + dbg(2, "%s: dev=%p\n", __FUNCTION__, dev); // Initialize and startup the GT-96100 ethernet port @@ -1033,7 +1033,7 @@ gt96100_open(struct net_device *dev) err("unable to get IRQ %d\n", dev->irq); return retval; } - + dbg(2, "%s: Initialization done.\n", __FUNCTION__); return 0; @@ -1051,7 +1051,7 @@ gt96100_close(struct net_device *dev) } free_irq(dev->irq, dev); - + return 0; } @@ -1068,21 +1068,21 @@ gt96100_tx(struct sk_buff *skb, struct net_device *dev) nextIn = gp->tx_next_in; dbg(3, "%s: nextIn=%d\n", __FUNCTION__, nextIn); - + if (gp->tx_count >= TX_RING_SIZE) { warn("Tx Ring full, pkt dropped.\n"); gp->stats.tx_dropped++; spin_unlock_irqrestore(&gp->lock, flags); return 1; } - + if (!(gp->last_psr & psrLink)) { err("%s: Link down, pkt dropped.\n", __FUNCTION__); gp->stats.tx_dropped++; spin_unlock_irqrestore(&gp->lock, flags); return 1; } - + if (dma32_to_cpu(gp->tx_ring[nextIn].cmdstat) & txOwn) { err("%s: device owns descriptor, pkt dropped.\n", __FUNCTION__); gp->stats.tx_dropped++; @@ -1091,7 +1091,7 @@ gt96100_tx(struct sk_buff *skb, struct net_device *dev) spin_unlock_irqrestore(&gp->lock, flags); return 1; } - + // Prepare the Descriptor at tx_next_in gp->tx_skbuff[nextIn] = skb; gp->tx_ring[nextIn].byte_cnt = cpu_to_dma16(skb->len); @@ -1103,7 +1103,7 @@ gt96100_tx(struct sk_buff *skb, struct net_device *dev) gp->tx_ring[nextIn].cmdstat = cpu_to_dma32((u32)(txOwn | txGenCRC | txEI | txPad | txFirst | txLast)); - + dump_tx_desc(4, dev, nextIn); dump_skb(4, dev, skb); @@ -1120,7 +1120,7 @@ gt96100_tx(struct sk_buff *skb, struct net_device *dev) netif_stop_queue(dev); dbg(2, "Tx Ring now full, queue stopped.\n"); } - + dev->trans_start = jiffies; spin_unlock_irqrestore(&gp->lock, flags); @@ -1136,7 +1136,7 @@ gt96100_rx(struct net_device *dev, u32 status) int pkt_len, nextOut, cdp; gt96100_rd_t *rd; u32 cmdstat; - + dbg(3, "%s: dev=%p, status=%x\n", __FUNCTION__, dev, status); cdp = (GT96100ETH_READ(gp, GT96100_ETH_1ST_RX_DESC_PTR0) @@ -1145,13 +1145,13 @@ gt96100_rx(struct net_device *dev, u32 status) // Continue until we reach 1st descriptor pointer for (nextOut = gp->rx_next_out; nextOut != cdp; nextOut = (nextOut + 1) % RX_RING_SIZE) { - + if (--gp->intr_work_done == 0) break; rd = &gp->rx_ring[nextOut]; cmdstat = dma32_to_cpu(rd->cmdstat); - + dbg(4, "%s: Rx desc cmdstat=%x, nextOut=%d\n", __FUNCTION__, cmdstat, nextOut); @@ -1202,9 +1202,9 @@ gt96100_rx(struct net_device *dev, u32 status) // continue to drop every descriptor of this packet continue; } - + pkt_len = dma16_to_cpu(rd->byte_cnt); - + /* Create new skb. */ skb = dev_alloc_skb(pkt_len+2); if (skb == NULL) { @@ -1220,7 +1220,7 @@ gt96100_rx(struct net_device *dev, u32 status) &gp->rx_buff[nextOut*PKT_BUF_SZ], pkt_len); skb->protocol = eth_type_trans(skb, dev); dump_skb(4, dev, skb); - + netif_rx(skb); /* pass the packet to upper layers */ dev->last_rx = jiffies; @@ -1228,7 +1228,7 @@ gt96100_rx(struct net_device *dev, u32 status) cmdstat |= (u32)rxOwn; rd->cmdstat = cpu_to_dma32(cmdstat); } - + if (nextOut == gp->rx_next_out) dbg(3, "%s: RxCDP did not increment?\n", __FUNCTION__); @@ -1247,20 +1247,20 @@ gt96100_tx_complete(struct net_device *dev, u32 status) cdp = (GT96100ETH_READ(gp, GT96100_ETH_CURR_TX_DESC_PTR0) - gp->tx_ring_dma) / sizeof(gt96100_td_t); - + // Continue until we reach the current descriptor pointer for (nextOut = gp->tx_next_out; nextOut != cdp; nextOut = (nextOut + 1) % TX_RING_SIZE) { - + if (--gp->intr_work_done == 0) break; td = &gp->tx_ring[nextOut]; cmdstat = dma32_to_cpu(td->cmdstat); - + dbg(3, "%s: Tx desc cmdstat=%x, nextOut=%d\n", __FUNCTION__, cmdstat, nextOut); - + if (cmdstat & (u32)txOwn) { /* * DMA is not finished writing descriptor??? @@ -1269,7 +1269,7 @@ gt96100_tx_complete(struct net_device *dev, u32 status) */ break; } - + // increment Tx error stats if (cmdstat & (u32)txErrorSummary) { dbg(2, "%s: Tx error, cmdstat = %x\n", __FUNCTION__, @@ -1282,7 +1282,7 @@ gt96100_tx_complete(struct net_device *dev, u32 status) if (cmdstat & (u32)txLateCollision) gp->stats.tx_window_errors++; } - + if (cmdstat & (u32)txCollision) gp->stats.collisions += (u32)((cmdstat & txReTxCntMask) >> @@ -1297,10 +1297,10 @@ gt96100_tx_complete(struct net_device *dev, u32 status) __FUNCTION__); } } - + // decrement tx ring buffer count if (gp->tx_count) gp->tx_count--; - + // free the skb if (gp->tx_skbuff[nextOut]) { dbg(3, "%s: good Tx, skb=%p\n", __FUNCTION__, @@ -1317,7 +1317,7 @@ gt96100_tx_complete(struct net_device *dev, u32 status) if (gt96100_check_tx_consistent(gp)) { err("%s: Tx queue inconsistent!\n", __FUNCTION__); } - + if ((status & icrTxEndLow) && gp->tx_count != 0) { // we must restart the DMA dbg(3, "%s: Restarting Tx DMA\n", __FUNCTION__); @@ -1374,7 +1374,7 @@ gt96100_interrupt(int irq, void *dev_id, struct pt_regs *regs) psr & psrTxLow ? "running":"stopped", psr & psrTxHigh ? "running":"stopped", psr & psrTxInProg ? "on":"off"); - + if ((psr & psrLink) && !gp->tx_full && netif_queue_stopped(dev)) { dbg(0, "%s: Link up, waking queue.\n", @@ -1393,21 +1393,21 @@ gt96100_interrupt(int irq, void *dev_id, struct pt_regs *regs) if (--gp->intr_work_done == 0) break; } - + if (status & (icrTxBufferLow | icrTxEndLow)) gt96100_tx_complete(dev, status); if (status & (icrRxBuffer | icrRxError)) { gt96100_rx(dev, status); } - + // Now check TX errors (RX errors were handled in gt96100_rx) if (status & icrTxErrorLow) { err("%s: Tx resource error\n", __FUNCTION__); if (--gp->intr_work_done == 0) break; } - + if (status & icrTxUdr) { err("%s: Tx underrun error\n", __FUNCTION__); if (--gp->intr_work_done == 0) @@ -1420,7 +1420,7 @@ gt96100_interrupt(int irq, void *dev_id, struct pt_regs *regs) GT96100ETH_WRITE(gp, GT96100_ETH_INT_CAUSE, 0); dbg(3, "%s: hit max work\n", __FUNCTION__); } - + dbg(3, "%s: exit, icr=%x\n", __FUNCTION__, GT96100ETH_READ(gp, GT96100_ETH_INT_CAUSE)); @@ -1434,9 +1434,9 @@ gt96100_tx_timeout(struct net_device *dev) { struct gt96100_private *gp = netdev_priv(dev); unsigned long flags; - + spin_lock_irqsave(&gp->lock, flags); - + if (!(gp->last_psr & psrLink)) { err("tx_timeout: link down.\n"); spin_unlock_irqrestore(&gp->lock, flags); @@ -1448,7 +1448,7 @@ gt96100_tx_timeout(struct net_device *dev) spin_unlock_irqrestore(&gp->lock, flags); reset_tx(dev); enable_ether_irq(dev); - + netif_wake_queue(dev); } } @@ -1460,7 +1460,7 @@ gt96100_set_rx_mode(struct net_device *dev) struct gt96100_private *gp = netdev_priv(dev); unsigned long flags; //struct dev_mc_list *mcptr; - + dbg(3, "%s: dev=%p, flags=%x\n", __FUNCTION__, dev, dev->flags); // stop the Receiver DMA @@ -1491,7 +1491,7 @@ gt96100_set_rx_mode(struct net_device *dev) } } #endif - + // restart Rx DMA GT96100ETH_WRITE(gp, GT96100_ETH_SDMA_COMM, sdcmrERD); |