void pnic2_lnk_change(/*RTnet*/struct rtnet_device *rtdev, int csr5)
{
struct net_device *dev = rtdev->dev;
struct tulip_private *tp = (struct tulip_private *)dev->priv;
long ioaddr = dev->base_addr;
int csr14;
/* read the staus register to find out what is up */
int csr12 = inl(ioaddr + CSR12);
if (tulip_debug > 1)
/*RTnet*/rt_printk(KERN_INFO"%s: PNIC2 link status interrupt %8.8x, "
" CSR5 %x, %8.8x.\n", dev->name, csr12,
csr5, inl(ioaddr + CSR14));
/* If NWay finished and we have a negotiated partner capability.
* check bits 14:12 for bit pattern 101 - all is good
*/
if (tp->nway && !tp->nwayset) {
/* we did an auto negotiation */
if ((csr12 & 0x7000) == 0x5000) {
/* negotiation ended successfully */
/* get the link partners reply and mask out all but
* bits 24-21 which show the partners capabilites
* and match those to what we advertised
*
* then begin to interpret the results of the negotiation.
* Always go in this order : (we are ignoring T4 for now)
* 100baseTx-FD, 100baseTx-HD, 10baseT-FD, 10baseT-HD
*/
int negotiated = ((csr12 >> 16) & 0x01E0) & tp->sym_advertise;
tp->lpar = (csr12 >> 16);
tp->nwayset = 1;
if (negotiated & 0x0100) dev->if_port = 5;
else if (negotiated & 0x0080) dev->if_port = 3;
else if (negotiated & 0x0040) dev->if_port = 4;
else if (negotiated & 0x0020) dev->if_port = 0;
else {
if (tulip_debug > 1)
/*RTnet*/rt_printk(KERN_INFO "%s: funny autonegotiate result "
"csr12 %8.8x advertising %4.4x\n",
dev->name, csr12, tp->sym_advertise);
tp->nwayset = 0;
/* so check if 100baseTx link state is okay */
if ((csr12 & 2) == 0 && (tp->sym_advertise & 0x0180))
dev->if_port = 3;
}
/* now record the duplex that was negotiated */
tp->full_duplex = 0;
if ((dev->if_port == 4) || (dev->if_port == 5))
tp->full_duplex = 1;
if (tulip_debug > 1) {
if (tp->nwayset)
/*RTnet*/rt_printk(KERN_INFO "%s: Switching to %s based on link "
"negotiation %4.4x & %4.4x = %4.4x.\n",
dev->name, medianame[dev->if_port],
tp->sym_advertise, tp->lpar, negotiated);
}
/* remember to turn off bit 7 - autonegotiate
* enable so we can properly end nway mode and
* set duplex (ie. use csr6<9> again)
*/
csr14 = (inl(ioaddr + CSR14) & 0xffffff7f);
outl(csr14,ioaddr + CSR14);
/* now set the data port and operating mode
* (see the Data Port Selection comments at
* the top of the file
*/
/* get current csr6 and mask off bits not to touch */
/* see comment at top of file */
tp->csr6 = (inl(ioaddr + CSR6) & 0xfe3bd1fd);
/* so if using if_port 3 or 5 then select the 100baseT
* port else select the 10baseT port.
* See the Data Port Selection table at the top
* of the file which was taken from the PNIC_II.PDF
* datasheet
*/
if (dev->if_port & 1) tp->csr6 |= 0x01840000;
else tp->csr6 |= 0x00400000;
/* now set the full duplex bit appropriately */
if (tp->full_duplex) tp->csr6 |= 0x00000200;
outl(1, ioaddr + CSR13);
if (tulip_debug > 2)
/*RTnet*/rt_printk(KERN_DEBUG "%s: Setting CSR6 %8.8x/%x CSR12 "
"%8.8x.\n", dev->name, tp->csr6,
inl(ioaddr + CSR6), inl(ioaddr + CSR12));
/* now the following actually writes out the
* new csr6 values
*/
tulip_start_rxtx(tp);
return;
} else {
void t21142_lnk_change(struct net_device *dev, int csr5)
{
struct tulip_private *tp = netdev_priv(dev);
void __iomem *ioaddr = tp->base_addr;
int csr12 = ioread32(ioaddr + CSR12);
int csr14 = ioread32(ioaddr + CSR14);
/* CSR12[LS10,LS100] are not reliable during autonegotiation */
if ((csr14 & 0x80) && (csr12 & 0x7000) != 0x5000)
csr12 |= 6;
if (tulip_debug > 1)
dev_info(&dev->dev,
"21143 link status interrupt %08x, CSR5 %x, %08x\n",
csr12, csr5, csr14);
/* If NWay finished and we have a negotiated partner capability. */
if (tp->nway && !tp->nwayset && (csr12 & 0x7000) == 0x5000) {
int setup_done = 0;
int negotiated = tp->sym_advertise & (csr12 >> 16);
tp->lpar = csr12 >> 16;
tp->nwayset = 1;
/* If partner cannot negotiate, it is 10Mbps Half Duplex */
if (!(csr12 & 0x8000)) dev->if_port = 0;
else if (negotiated & 0x0100) dev->if_port = 5;
else if (negotiated & 0x0080) dev->if_port = 3;
else if (negotiated & 0x0040) dev->if_port = 4;
else if (negotiated & 0x0020) dev->if_port = 0;
else {
tp->nwayset = 0;
if ((csr12 & 2) == 0 && (tp->sym_advertise & 0x0180))
dev->if_port = 3;
}
tp->full_duplex = (tulip_media_cap[dev->if_port] & MediaAlwaysFD) ? 1:0;
if (tulip_debug > 1) {
if (tp->nwayset)
dev_info(&dev->dev,
"Switching to %s based on link negotiation %04x & %04x = %04x\n",
medianame[dev->if_port],
tp->sym_advertise, tp->lpar,
negotiated);
else
dev_info(&dev->dev,
"Autonegotiation failed, using %s, link beat status %04x\n",
medianame[dev->if_port], csr12);
}
if (tp->mtable) {
int i;
for (i = 0; i < tp->mtable->leafcount; i++)
if (tp->mtable->mleaf[i].media == dev->if_port) {
int startup = ! ((tp->chip_id == DC21143 && (tp->revision == 48 || tp->revision == 65)));
tp->cur_index = i;
tulip_select_media(dev, startup);
setup_done = 1;
break;
}
}
if ( ! setup_done) {
tp->csr6 = (dev->if_port & 1 ? 0x838E0000 : 0x82420000) | (tp->csr6 & 0x20ff);
if (tp->full_duplex)
tp->csr6 |= 0x0200;
iowrite32(1, ioaddr + CSR13);
}
#if 0 /* Restart shouldn't be needed. */
iowrite32(tp->csr6 | RxOn, ioaddr + CSR6);
if (tulip_debug > 2)
netdev_dbg(dev, " Restarting Tx and Rx, CSR5 is %08x\n",
ioread32(ioaddr + CSR5));
#endif
tulip_start_rxtx(tp);
if (tulip_debug > 2)
netdev_dbg(dev, " Setting CSR6 %08x/%x CSR12 %08x\n",
tp->csr6, ioread32(ioaddr + CSR6),
ioread32(ioaddr + CSR12));
} else if ((tp->nwayset && (csr5 & 0x08000000) &&
static int tulip_rx(/*RTnet*/struct rtnet_device *rtdev, nanosecs_t *time_stamp)
{
struct tulip_private *tp = (struct tulip_private *)rtdev->priv;
int entry = tp->cur_rx % RX_RING_SIZE;
int rx_work_limit = tp->dirty_rx + RX_RING_SIZE - tp->cur_rx;
int received = 0;
if (tulip_debug > 4)
/*RTnet*/rtdm_printk(KERN_DEBUG " In tulip_rx(), entry %d %8.8x.\n", entry,
tp->rx_ring[entry].status);
/* If we own the next entry, it is a new packet. Send it up. */
while ( ! (tp->rx_ring[entry].status & cpu_to_le32(DescOwned))) {
s32 status = le32_to_cpu(tp->rx_ring[entry].status);
if (tulip_debug > 5)
/*RTnet*/rtdm_printk(KERN_DEBUG "%s: In tulip_rx(), entry %d %8.8x.\n",
rtdev->name, entry, status);
if (--rx_work_limit < 0)
break;
if ((status & 0x38008300) != 0x0300) {
if ((status & 0x38000300) != 0x0300) {
/* Ingore earlier buffers. */
if ((status & 0xffff) != 0x7fff) {
if (tulip_debug > 1)
/*RTnet*/rtdm_printk(KERN_WARNING "%s: Oversized Ethernet frame "
"spanned multiple buffers, status %8.8x!\n",
rtdev->name, status);
tp->stats.rx_length_errors++;
}
} else if (status & RxDescFatalErr) {
/* There was a fatal error. */
if (tulip_debug > 2)
/*RTnet*/rtdm_printk(KERN_DEBUG "%s: Receive error, Rx status %8.8x.\n",
rtdev->name, status);
tp->stats.rx_errors++; /* end of a packet.*/
if (status & 0x0890) tp->stats.rx_length_errors++;
if (status & 0x0004) tp->stats.rx_frame_errors++;
if (status & 0x0002) tp->stats.rx_crc_errors++;
if (status & 0x0001) tp->stats.rx_fifo_errors++;
}
} else {
/* Omit the four octet CRC from the length. */
short pkt_len = ((status >> 16) & 0x7ff) - 4;
struct /*RTnet*/rtskb *skb;
#ifndef final_version
if (pkt_len > 1518) {
/*RTnet*/rtdm_printk(KERN_WARNING "%s: Bogus packet size of %d (%#x).\n",
rtdev->name, pkt_len, pkt_len);
pkt_len = 1518;
tp->stats.rx_length_errors++;
}
#endif
#if 0 /*RTnet*/
/* Check if the packet is long enough to accept without copying
to a minimally-sized skbuff. */
if (pkt_len < tulip_rx_copybreak
&& (skb = /*RTnet*/dev_alloc_rtskb(pkt_len + 2)) != NULL) {
skb->rtdev = rtdev;
/*RTnet*/rtskb_reserve(skb, 2); /* 16 byte align the IP header */
pci_dma_sync_single(tp->pdev,
tp->rx_buffers[entry].mapping,
pkt_len, PCI_DMA_FROMDEVICE);
#if ! defined(__alpha__)
//eth_copy_and_sum(skb, tp->rx_buffers[entry].skb->tail,
// pkt_len, 0);
memcpy(rtskb_put(skb, pkt_len),
tp->rx_buffers[entry].skb->tail,
pkt_len);
#else
memcpy(/*RTnet*/rtskb_put(skb, pkt_len),
tp->rx_buffers[entry].skb->tail,
pkt_len);
#endif
} else { /* Pass up the skb already on the Rx ring. */
#endif /*RTnet*/
{
char *temp = /*RTnet*/rtskb_put(skb = tp->rx_buffers[entry].skb,
pkt_len);
#ifndef final_version
if (tp->rx_buffers[entry].mapping !=
le32_to_cpu(tp->rx_ring[entry].buffer1)) {
/*RTnet*/rtdm_printk(KERN_ERR "%s: Internal fault: The skbuff addresses "
"do not match in tulip_rx: %08x vs. %08x ? / %p.\n",
rtdev->name,
le32_to_cpu(tp->rx_ring[entry].buffer1),
tp->rx_buffers[entry].mapping,
temp);/*RTnet*/
}
#endif
pci_unmap_single(tp->pdev, tp->rx_buffers[entry].mapping,
PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
tp->rx_buffers[entry].skb = NULL;
tp->rx_buffers[entry].mapping = 0;
}
skb->protocol = /*RTnet*/rt_eth_type_trans(skb, rtdev);
skb->time_stamp = *time_stamp;
/*RTnet*/rtnetif_rx(skb);
tp->stats.rx_packets++;
tp->stats.rx_bytes += pkt_len;
}
received++;
entry = (++tp->cur_rx) % RX_RING_SIZE;
}
return received;
}
/* The interrupt handler does all of the Rx thread work and cleans up
after the Tx thread. */
int tulip_interrupt(rtdm_irq_t *irq_handle)
{
nanosecs_t time_stamp = rtdm_clock_read();/*RTnet*/
struct rtnet_device *rtdev =
rtdm_irq_get_arg(irq_handle, struct rtnet_device);/*RTnet*/
struct tulip_private *tp = (struct tulip_private *)rtdev->priv;
long ioaddr = rtdev->base_addr;
unsigned int csr5;
int entry;
int missed;
int rx = 0;
int tx = 0;
int oi = 0;
int maxrx = RX_RING_SIZE;
int maxtx = TX_RING_SIZE;
int maxoi = TX_RING_SIZE;
unsigned int work_count = tulip_max_interrupt_work;
/* Let's see whether the interrupt really is for us */
csr5 = inl(ioaddr + CSR5);
if ((csr5 & (NormalIntr|AbnormalIntr)) == 0) {
rtdm_printk("%s: unexpected IRQ!\n",rtdev->name);
return 0;
}
tp->nir++;
do {
/* Acknowledge all of the current interrupt sources ASAP. */
outl(csr5 & 0x0001ffff, ioaddr + CSR5);
if (tulip_debug > 4)
/*RTnet*/rtdm_printk(KERN_DEBUG "%s: interrupt csr5=%#8.8x new csr5=%#8.8x.\n",
rtdev->name, csr5, inl(rtdev->base_addr + CSR5));
if (csr5 & (RxIntr | RxNoBuf)) {
rx += tulip_rx(rtdev, &time_stamp);
tulip_refill_rx(rtdev);
}
if (csr5 & (TxNoBuf | TxDied | TxIntr | TimerInt)) {
unsigned int dirty_tx;
rtdm_lock_get(&tp->lock);
for (dirty_tx = tp->dirty_tx; tp->cur_tx - dirty_tx > 0;
dirty_tx++) {
int entry = dirty_tx % TX_RING_SIZE;
int status = le32_to_cpu(tp->tx_ring[entry].status);
if (status < 0)
break; /* It still has not been Txed */
/* Check for Rx filter setup frames. */
if (tp->tx_buffers[entry].skb == NULL) {
/* test because dummy frames not mapped */
if (tp->tx_buffers[entry].mapping)
pci_unmap_single(tp->pdev,
tp->tx_buffers[entry].mapping,
sizeof(tp->setup_frame),
PCI_DMA_TODEVICE);
continue;
}
if (status & 0x8000) {
/* There was an major error, log it. */
#ifndef final_version
if (tulip_debug > 1)
/*RTnet*/rtdm_printk(KERN_DEBUG "%s: Transmit error, Tx status %8.8x.\n",
rtdev->name, status);
#endif
tp->stats.tx_errors++;
if (status & 0x4104) tp->stats.tx_aborted_errors++;
if (status & 0x0C00) tp->stats.tx_carrier_errors++;
if (status & 0x0200) tp->stats.tx_window_errors++;
if (status & 0x0002) tp->stats.tx_fifo_errors++;
if ((status & 0x0080) && tp->full_duplex == 0)
tp->stats.tx_heartbeat_errors++;
} else {
tp->stats.tx_bytes +=
tp->tx_buffers[entry].skb->len;
tp->stats.collisions += (status >> 3) & 15;
tp->stats.tx_packets++;
}
pci_unmap_single(tp->pdev, tp->tx_buffers[entry].mapping,
tp->tx_buffers[entry].skb->len,
PCI_DMA_TODEVICE);
/* Free the original skb. */
/*RTnet*/dev_kfree_rtskb(tp->tx_buffers[entry].skb);
tp->tx_buffers[entry].skb = NULL;
tp->tx_buffers[entry].mapping = 0;
tx++;
rtnetif_tx(rtdev);
}
#ifndef final_version
if (tp->cur_tx - dirty_tx > TX_RING_SIZE) {
/*RTnet*/rtdm_printk(KERN_ERR "%s: Out-of-sync dirty pointer, %d vs. %d.\n",
rtdev->name, dirty_tx, tp->cur_tx);
dirty_tx += TX_RING_SIZE;
}
#endif
if (tp->cur_tx - dirty_tx < TX_RING_SIZE - 2)
/*RTnet*/rtnetif_wake_queue(rtdev);
tp->dirty_tx = dirty_tx;
if (csr5 & TxDied) {
if (tulip_debug > 2)
/*RTnet*/rtdm_printk(KERN_WARNING "%s: The transmitter stopped."
" CSR5 is %x, CSR6 %x, new CSR6 %x.\n",
rtdev->name, csr5, inl(ioaddr + CSR6), tp->csr6);
tulip_restart_rxtx(tp);
}
rtdm_lock_put(&tp->lock);
}
/* Log errors. */
if (csr5 & AbnormalIntr) { /* Abnormal error summary bit. */
if (csr5 == 0xffffffff)
break;
#if 0 /*RTnet*/
if (csr5 & TxJabber) tp->stats.tx_errors++;
if (csr5 & TxFIFOUnderflow) {
if ((tp->csr6 & 0xC000) != 0xC000)
tp->csr6 += 0x4000; /* Bump up the Tx threshold */
else
tp->csr6 |= 0x00200000; /* Store-n-forward. */
/* Restart the transmit process. */
tulip_restart_rxtx(tp);
outl(0, ioaddr + CSR1);
}
if (csr5 & (RxDied | RxNoBuf)) {
if (tp->flags & COMET_MAC_ADDR) {
outl(tp->mc_filter[0], ioaddr + 0xAC);
outl(tp->mc_filter[1], ioaddr + 0xB0);
}
}
if (csr5 & RxDied) { /* Missed a Rx frame. */
tp->stats.rx_missed_errors += inl(ioaddr + CSR8) & 0xffff;
tp->stats.rx_errors++;
tulip_start_rxtx(tp);
}
/*
* NB: t21142_lnk_change() does a del_timer_sync(), so be careful if this
* call is ever done under the spinlock
*/
if (csr5 & (TPLnkPass | TPLnkFail | 0x08000000)) {
if (tp->link_change)
(tp->link_change)(rtdev, csr5);
}
if (csr5 & SytemError) {
int error = (csr5 >> 23) & 7;
/* oops, we hit a PCI error. The code produced corresponds
* to the reason:
* 0 - parity error
* 1 - master abort
* 2 - target abort
* Note that on parity error, we should do a software reset
* of the chip to get it back into a sane state (according
* to the 21142/3 docs that is).
* -- rmk
*/
/*RTnet*/rtdm_printk(KERN_ERR "%s: (%lu) System Error occured (%d)\n",
rtdev->name, tp->nir, error);
}
#endif /*RTnet*/
/*RTnet*/rtdm_printk(KERN_ERR "%s: Error detected, "
"device may not work any more (csr5=%08x)!\n", rtdev->name, csr5);
/* Clear all error sources, included undocumented ones! */
outl(0x0800f7ba, ioaddr + CSR5);
oi++;
}
void t21142_lnk_change(struct net_device *dev, int csr5)
{
struct tulip_private *tp = (struct tulip_private *)dev->priv;
long ioaddr = dev->base_addr;
int csr12 = inl(ioaddr + CSR12);
if (tulip_debug > 1)
printk(KERN_INFO"%s: 21143 link status interrupt %8.8x, CSR5 %x, "
"%8.8x.\n", dev->name, csr12, csr5, inl(ioaddr + CSR14));
/* If NWay finished and we have a negotiated partner capability. */
if (tp->nway && !tp->nwayset && (csr12 & 0x7000) == 0x5000) {
int setup_done = 0;
int negotiated = tp->sym_advertise & (csr12 >> 16);
tp->lpar = csr12 >> 16;
tp->nwayset = 1;
if (negotiated & 0x0100) dev->if_port = 5;
else if (negotiated & 0x0080) dev->if_port = 3;
else if (negotiated & 0x0040) dev->if_port = 4;
else if (negotiated & 0x0020) dev->if_port = 0;
else {
tp->nwayset = 0;
if ((csr12 & 2) == 0 && (tp->sym_advertise & 0x0180))
dev->if_port = 3;
}
tp->full_duplex = (tulip_media_cap[dev->if_port] & MediaAlwaysFD) ? 1:0;
if (tulip_debug > 1) {
if (tp->nwayset)
printk(KERN_INFO "%s: Switching to %s based on link "
"negotiation %4.4x & %4.4x = %4.4x.\n",
dev->name, medianame[dev->if_port], tp->sym_advertise,
tp->lpar, negotiated);
else
printk(KERN_INFO "%s: Autonegotiation failed, using %s,"
" link beat status %4.4x.\n",
dev->name, medianame[dev->if_port], csr12);
}
if (tp->mtable) {
int i;
for (i = 0; i < tp->mtable->leafcount; i++)
if (tp->mtable->mleaf[i].media == dev->if_port) {
int startup = ! ((tp->chip_id == DC21143 && tp->revision == 65));
tp->cur_index = i;
tulip_select_media(dev, startup);
setup_done = 1;
break;
}
}
if ( ! setup_done) {
tp->csr6 = (dev->if_port & 1 ? 0x838E0000 : 0x82420000) | (tp->csr6 & 0x20ff);
if (tp->full_duplex)
tp->csr6 |= 0x0200;
outl(1, ioaddr + CSR13);
}
#if 0 /* Restart shouldn't be needed. */
outl(tp->csr6 | RxOn, ioaddr + CSR6);
if (tulip_debug > 2)
printk(KERN_DEBUG "%s: Restarting Tx and Rx, CSR5 is %8.8x.\n",
dev->name, inl(ioaddr + CSR5));
#endif
tulip_start_rxtx(tp);
if (tulip_debug > 2)
printk(KERN_DEBUG "%s: Setting CSR6 %8.8x/%x CSR12 %8.8x.\n",
dev->name, tp->csr6, inl(ioaddr + CSR6),
inl(ioaddr + CSR12));
} else if ((tp->nwayset && (csr5 & 0x08000000)
/* The interrupt handler does all of the Rx thread work and cleans up
after the Tx thread. */
irqreturn_t tulip_interrupt(int irq, void *dev_instance, struct pt_regs *regs)
{
struct net_device *dev = (struct net_device *)dev_instance;
struct tulip_private *tp = netdev_priv(dev);
void __iomem *ioaddr = tp->base_addr;
int csr5;
int missed;
int rx = 0;
int tx = 0;
int oi = 0;
int maxrx = RX_RING_SIZE;
int maxtx = TX_RING_SIZE;
int maxoi = TX_RING_SIZE;
#ifdef CONFIG_TULIP_NAPI
int rxd = 0;
#else
int entry;
#endif
unsigned int work_count = tulip_max_interrupt_work;
unsigned int handled = 0;
/* Let's see whether the interrupt really is for us */
csr5 = ioread32(ioaddr + CSR5);
if (tp->flags & HAS_PHY_IRQ)
handled = phy_interrupt (dev);
if ((csr5 & (NormalIntr|AbnormalIntr)) == 0)
return IRQ_RETVAL(handled);
tp->nir++;
do {
#ifdef CONFIG_TULIP_NAPI
if (!rxd && (csr5 & (RxIntr | RxNoBuf))) {
rxd++;
/* Mask RX intrs and add the device to poll list. */
iowrite32(tulip_tbl[tp->chip_id].valid_intrs&~RxPollInt, ioaddr + CSR7);
netif_rx_schedule(dev);
if (!(csr5&~(AbnormalIntr|NormalIntr|RxPollInt|TPLnkPass)))
break;
}
/* Acknowledge the interrupt sources we handle here ASAP
the poll function does Rx and RxNoBuf acking */
iowrite32(csr5 & 0x0001ff3f, ioaddr + CSR5);
#else
/* Acknowledge all of the current interrupt sources ASAP. */
iowrite32(csr5 & 0x0001ffff, ioaddr + CSR5);
if (csr5 & (RxIntr | RxNoBuf)) {
rx += tulip_rx(dev);
tulip_refill_rx(dev);
}
#endif /* CONFIG_TULIP_NAPI */
if (tulip_debug > 4)
printk(KERN_DEBUG "%s: interrupt csr5=%#8.8x new csr5=%#8.8x.\n",
dev->name, csr5, ioread32(ioaddr + CSR5));
if (csr5 & (TxNoBuf | TxDied | TxIntr | TimerInt)) {
unsigned int dirty_tx;
spin_lock(&tp->lock);
for (dirty_tx = tp->dirty_tx; tp->cur_tx - dirty_tx > 0;
dirty_tx++) {
int entry = dirty_tx % TX_RING_SIZE;
int status = le32_to_cpu(tp->tx_ring[entry].status);
if (status < 0)
break; /* It still has not been Txed */
/* Check for Rx filter setup frames. */
if (tp->tx_buffers[entry].skb == NULL) {
/* test because dummy frames not mapped */
if (tp->tx_buffers[entry].mapping)
pci_unmap_single(tp->pdev,
tp->tx_buffers[entry].mapping,
sizeof(tp->setup_frame),
PCI_DMA_TODEVICE);
continue;
}
if (status & 0x8000) {
/* There was an major error, log it. */
#ifndef final_version
if (tulip_debug > 1)
printk(KERN_DEBUG "%s: Transmit error, Tx status %8.8x.\n",
dev->name, status);
#endif
tp->stats.tx_errors++;
if (status & 0x4104) tp->stats.tx_aborted_errors++;
if (status & 0x0C00) tp->stats.tx_carrier_errors++;
if (status & 0x0200) tp->stats.tx_window_errors++;
if (status & 0x0002) tp->stats.tx_fifo_errors++;
if ((status & 0x0080) && tp->full_duplex == 0)
tp->stats.tx_heartbeat_errors++;
} else {
tp->stats.tx_bytes +=
tp->tx_buffers[entry].skb->len;
tp->stats.collisions += (status >> 3) & 15;
tp->stats.tx_packets++;
}
pci_unmap_single(tp->pdev, tp->tx_buffers[entry].mapping,
tp->tx_buffers[entry].skb->len,
PCI_DMA_TODEVICE);
/* Free the original skb. */
dev_kfree_skb_irq(tp->tx_buffers[entry].skb);
tp->tx_buffers[entry].skb = NULL;
tp->tx_buffers[entry].mapping = 0;
tx++;
}
#ifndef final_version
if (tp->cur_tx - dirty_tx > TX_RING_SIZE) {
printk(KERN_ERR "%s: Out-of-sync dirty pointer, %d vs. %d.\n",
dev->name, dirty_tx, tp->cur_tx);
dirty_tx += TX_RING_SIZE;
}
#endif
if (tp->cur_tx - dirty_tx < TX_RING_SIZE - 2)
netif_wake_queue(dev);
tp->dirty_tx = dirty_tx;
if (csr5 & TxDied) {
if (tulip_debug > 2)
printk(KERN_WARNING "%s: The transmitter stopped."
" CSR5 is %x, CSR6 %x, new CSR6 %x.\n",
dev->name, csr5, ioread32(ioaddr + CSR6), tp->csr6);
tulip_restart_rxtx(tp);
}
spin_unlock(&tp->lock);
}
/* Log errors. */
if (csr5 & AbnormalIntr) { /* Abnormal error summary bit. */
if (csr5 == 0xffffffff)
break;
if (csr5 & TxJabber) tp->stats.tx_errors++;
if (csr5 & TxFIFOUnderflow) {
if ((tp->csr6 & 0xC000) != 0xC000)
tp->csr6 += 0x4000; /* Bump up the Tx threshold */
else
tp->csr6 |= 0x00200000; /* Store-n-forward. */
/* Restart the transmit process. */
tulip_restart_rxtx(tp);
iowrite32(0, ioaddr + CSR1);
}
if (csr5 & (RxDied | RxNoBuf)) {
if (tp->flags & COMET_MAC_ADDR) {
iowrite32(tp->mc_filter[0], ioaddr + 0xAC);
iowrite32(tp->mc_filter[1], ioaddr + 0xB0);
}
}
if (csr5 & RxDied) { /* Missed a Rx frame. */
tp->stats.rx_missed_errors += ioread32(ioaddr + CSR8) & 0xffff;
tp->stats.rx_errors++;
tulip_start_rxtx(tp);
}
/*
* NB: t21142_lnk_change() does a del_timer_sync(), so be careful if this
* call is ever done under the spinlock
*/
if (csr5 & (TPLnkPass | TPLnkFail | 0x08000000)) {
if (tp->link_change)
(tp->link_change)(dev, csr5);
}
if (csr5 & SytemError) {
int error = (csr5 >> 23) & 7;
/* oops, we hit a PCI error. The code produced corresponds
* to the reason:
* 0 - parity error
* 1 - master abort
* 2 - target abort
* Note that on parity error, we should do a software reset
* of the chip to get it back into a sane state (according
* to the 21142/3 docs that is).
* -- rmk
*/
printk(KERN_ERR "%s: (%lu) System Error occurred (%d)\n",
dev->name, tp->nir, error);
}
/* Clear all error sources, included undocumented ones! */
iowrite32(0x0800f7ba, ioaddr + CSR5);
oi++;
}
static void tulip_up(/*RTnet*/struct rtnet_device *rtdev)
{
struct tulip_private *tp = (struct tulip_private *)rtdev->priv;
long ioaddr = rtdev->base_addr;
int i;
/* Wake the chip from sleep/snooze mode. */
tulip_set_power_state (tp, 0, 0);
/* On some chip revs we must set the MII/SYM port before the reset!? */
if (tp->mii_cnt || (tp->mtable && tp->mtable->has_mii))
outl(0x00040000, ioaddr + CSR6);
/* Reset the chip, holding bit 0 set at least 50 PCI cycles. */
outl(0x00000001, ioaddr + CSR0);
udelay(100);
/* Deassert reset.
Wait the specified 50 PCI cycles after a reset by initializing
Tx and Rx queues and the address filter list. */
outl(tp->csr0, ioaddr + CSR0);
udelay(100);
if (tulip_debug > 1)
printk(KERN_DEBUG "%s: tulip_up(), irq==%d.\n", rtdev->name, rtdev->irq);
outl(tp->rx_ring_dma, ioaddr + CSR3);
outl(tp->tx_ring_dma, ioaddr + CSR4);
tp->cur_rx = tp->cur_tx = 0;
tp->dirty_rx = tp->dirty_tx = 0;
if (tp->flags & MC_HASH_ONLY) {
u32 addr_low = cpu_to_le32(get_unaligned((u32 *)rtdev->dev_addr));
u32 addr_high = cpu_to_le32(get_unaligned((u16 *)(rtdev->dev_addr+4)));
if (tp->chip_id == AX88140) {
outl(0, ioaddr + CSR13);
outl(addr_low, ioaddr + CSR14);
outl(1, ioaddr + CSR13);
outl(addr_high, ioaddr + CSR14);
} else if (tp->flags & COMET_MAC_ADDR) {
outl(addr_low, ioaddr + 0xA4);
outl(addr_high, ioaddr + 0xA8);
outl(0, ioaddr + 0xAC);
outl(0, ioaddr + 0xB0);
}
} else {
/* This is set_rx_mode(), but without starting the transmitter. */
u16 *eaddrs = (u16 *)rtdev->dev_addr;
u16 *setup_frm = &tp->setup_frame[15*6];
dma_addr_t mapping;
/* 21140 bug: you must add the broadcast address. */
memset(tp->setup_frame, 0xff, sizeof(tp->setup_frame));
/* Fill the final entry of the table with our physical address. */
*setup_frm++ = eaddrs[0]; *setup_frm++ = eaddrs[0];
*setup_frm++ = eaddrs[1]; *setup_frm++ = eaddrs[1];
*setup_frm++ = eaddrs[2]; *setup_frm++ = eaddrs[2];
mapping = pci_map_single(tp->pdev, tp->setup_frame,
sizeof(tp->setup_frame),
PCI_DMA_TODEVICE);
tp->tx_buffers[tp->cur_tx].skb = NULL;
tp->tx_buffers[tp->cur_tx].mapping = mapping;
/* Put the setup frame on the Tx list. */
tp->tx_ring[tp->cur_tx].length = cpu_to_le32(0x08000000 | 192);
tp->tx_ring[tp->cur_tx].buffer1 = cpu_to_le32(mapping);
tp->tx_ring[tp->cur_tx].status = cpu_to_le32(DescOwned);
tp->cur_tx++;
}
tp->saved_if_port = rtdev->if_port;
if (rtdev->if_port == 0)
rtdev->if_port = tp->default_port;
/* Allow selecting a default media. */
i = 0;
if (tp->mtable == NULL)
goto media_picked;
if (rtdev->if_port) {
int looking_for = tulip_media_cap[rtdev->if_port] & MediaIsMII ? 11 :
(rtdev->if_port == 12 ? 0 : rtdev->if_port);
for (i = 0; i < tp->mtable->leafcount; i++)
if (tp->mtable->mleaf[i].media == looking_for) {
printk(KERN_INFO "%s: Using user-specified media %s.\n",
rtdev->name, medianame[rtdev->if_port]);
goto media_picked;
}
}
if ((tp->mtable->defaultmedia & 0x0800) == 0) {
int looking_for = tp->mtable->defaultmedia & MEDIA_MASK;
for (i = 0; i < tp->mtable->leafcount; i++)
if (tp->mtable->mleaf[i].media == looking_for) {
printk(KERN_INFO "%s: Using EEPROM-set media %s.\n",
rtdev->name, medianame[looking_for]);
goto media_picked;
}
}
/* Start sensing first non-full-duplex media. */
for (i = tp->mtable->leafcount - 1;
(tulip_media_cap[tp->mtable->mleaf[i].media] & MediaAlwaysFD) && i > 0; i--)
;
media_picked:
tp->csr6 = 0;
tp->cur_index = i;
tp->nwayset = 0;
if (rtdev->if_port) {
if (tp->chip_id == DC21143 &&
(tulip_media_cap[rtdev->if_port] & MediaIsMII)) {
/* We must reset the media CSRs when we force-select MII mode. */
outl(0x0000, ioaddr + CSR13);
outl(0x0000, ioaddr + CSR14);
outl(0x0008, ioaddr + CSR15);
}
tulip_select_media(rtdev, 1);
} else if (tp->chip_id == DC21041) {
rtdev->if_port = 0;
tp->nway = tp->mediasense = 1;
tp->nwayset = tp->lpar = 0;
outl(0x00000000, ioaddr + CSR13);
outl(0xFFFFFFFF, ioaddr + CSR14);
outl(0x00000008, ioaddr + CSR15); /* Listen on AUI also. */
tp->csr6 = 0x80020000;
if (tp->sym_advertise & 0x0040)
tp->csr6 |= FullDuplex;
outl(tp->csr6, ioaddr + CSR6);
outl(0x0000EF01, ioaddr + CSR13);
} else if (tp->chip_id == DC21142) {
if (tp->mii_cnt) {
tulip_select_media(rtdev, 1);
if (tulip_debug > 1)
printk(KERN_INFO "%s: Using MII transceiver %d, status %4.4x.\n",
rtdev->name, tp->phys[0], tulip_mdio_read(rtdev, tp->phys[0], 1));
outl(csr6_mask_defstate, ioaddr + CSR6);
tp->csr6 = csr6_mask_hdcap;
rtdev->if_port = 11;
outl(0x0000, ioaddr + CSR13);
outl(0x0000, ioaddr + CSR14);
} else
t21142_start_nway(rtdev);
} else if (tp->chip_id == PNIC2) {
/* for initial startup advertise 10/100 Full and Half */
tp->sym_advertise = 0x01E0;
/* enable autonegotiate end interrupt */
outl(inl(ioaddr+CSR5)| 0x00008010, ioaddr + CSR5);
outl(inl(ioaddr+CSR7)| 0x00008010, ioaddr + CSR7);
pnic2_start_nway(rtdev);
} else if (tp->chip_id == LC82C168 && ! tp->medialock) {
if (tp->mii_cnt) {
rtdev->if_port = 11;
tp->csr6 = 0x814C0000 | (tp->full_duplex ? 0x0200 : 0);
outl(0x0001, ioaddr + CSR15);
} else if (inl(ioaddr + CSR5) & TPLnkPass)
pnic_do_nway(rtdev);
else {
/* Start with 10mbps to do autonegotiation. */
outl(0x32, ioaddr + CSR12);
tp->csr6 = 0x00420000;
outl(0x0001B078, ioaddr + 0xB8);
outl(0x0201B078, ioaddr + 0xB8);
}
} else if ((tp->chip_id == MX98713 || tp->chip_id == COMPEX9881)
&& ! tp->medialock) {
rtdev->if_port = 0;
tp->csr6 = 0x01880000 | (tp->full_duplex ? 0x0200 : 0);
outl(0x0f370000 | inw(ioaddr + 0x80), ioaddr + 0x80);
} else if (tp->chip_id == MX98715 || tp->chip_id == MX98725) {
/* Provided by BOLO, Macronix - 12/10/1998. */
rtdev->if_port = 0;
tp->csr6 = 0x01a80200;
outl(0x0f370000 | inw(ioaddr + 0x80), ioaddr + 0x80);
outl(0x11000 | inw(ioaddr + 0xa0), ioaddr + 0xa0);
} else if (tp->chip_id == COMET) {
/* Enable automatic Tx underrun recovery. */
outl(inl(ioaddr + 0x88) | 1, ioaddr + 0x88);
rtdev->if_port = tp->mii_cnt ? 11 : 0;
tp->csr6 = 0x00040000;
} else if (tp->chip_id == AX88140) {
tp->csr6 = tp->mii_cnt ? 0x00040100 : 0x00000100;
} else
tulip_select_media(rtdev, 1);
/* Start the chip's Tx to process setup frame. */
tulip_stop_rxtx(tp);
barrier();
udelay(5);
outl(tp->csr6 | TxOn, ioaddr + CSR6);
/* Enable interrupts by setting the interrupt mask. */
outl(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR5);
outl(tulip_tbl[tp->chip_id].valid_intrs, ioaddr + CSR7);
tulip_start_rxtx(tp);
outl(0, ioaddr + CSR2); /* Rx poll demand */
if (tulip_debug > 2) {
printk(KERN_DEBUG "%s: Done tulip_up(), CSR0 %8.8x, CSR5 %8.8x CSR6 %8.8x.\n",
rtdev->name, inl(ioaddr + CSR0), inl(ioaddr + CSR5),
inl(ioaddr + CSR6));
}
}
