In 1997 Realtek made available the documentation for the second generation
RTL8012 chip, which has lead to several driver improvements.
- http://www.realtek.com.tw/cn/cn.html
+ http://www.realtek.com.tw/
Theory of Operation
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/in.h>
-#include <linux/slab.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/init.h>
struct net_local {
spinlock_t lock;
struct net_device *next_module;
- struct net_device_stats stats;
struct timer_list timer; /* Media selection timer. */
long last_rx_time; /* Last Rx, in jiffies, to handle Rx hang. */
int saved_tx_size;
static void hardware_init(struct net_device *dev);
static void write_packet(long ioaddr, int length, unsigned char *packet, int pad, int mode);
static void trigger_send(long ioaddr, int length);
-static int atp_send_packet(struct sk_buff *skb, struct net_device *dev);
+static netdev_tx_t atp_send_packet(struct sk_buff *skb,
+ struct net_device *dev);
static irqreturn_t atp_interrupt(int irq, void *dev_id);
static void net_rx(struct net_device *dev);
static void read_block(long ioaddr, int length, unsigned char *buffer, int data_mode);
static int net_close(struct net_device *dev);
-static struct net_device_stats *net_get_stats(struct net_device *dev);
-static void set_rx_mode_8002(struct net_device *dev);
-static void set_rx_mode_8012(struct net_device *dev);
+static void set_rx_mode(struct net_device *dev);
static void tx_timeout(struct net_device *dev);
return -ENODEV;
}
+static const struct net_device_ops atp_netdev_ops = {
+ .ndo_open = net_open,
+ .ndo_stop = net_close,
+ .ndo_start_xmit = atp_send_packet,
+ .ndo_set_multicast_list = set_rx_mode,
+ .ndo_tx_timeout = tx_timeout,
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
static int __init atp_probe1(long ioaddr)
{
struct net_device *dev = NULL;
dev = alloc_etherdev(sizeof(struct net_local));
if (!dev)
return -ENOMEM;
- SET_MODULE_OWNER(dev);
/* Find the IRQ used by triggering an interrupt. */
write_reg_byte(ioaddr, CMR2, 0x01); /* No accept mode, IRQ out. */
printk(KERN_INFO "%s", version);
#endif
- printk(KERN_NOTICE "%s: Pocket adapter found at %#3lx, IRQ %d, SAPROM "
- "%02X:%02X:%02X:%02X:%02X:%02X.\n", dev->name, dev->base_addr,
- dev->irq, dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
- dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
+ printk(KERN_NOTICE "%s: Pocket adapter found at %#3lx, IRQ %d, "
+ "SAPROM %pM.\n",
+ dev->name, dev->base_addr, dev->irq, dev->dev_addr);
/* Reset the ethernet hardware and activate the printer pass-through. */
write_reg_high(ioaddr, CMR1, CMR1h_RESET | CMR1h_MUX);
if (dev->mem_end & 0xf)
net_debug = dev->mem_end & 7;
- dev->open = net_open;
- dev->stop = net_close;
- dev->hard_start_xmit = atp_send_packet;
- dev->get_stats = net_get_stats;
- dev->set_multicast_list =
- lp->chip_type == RTL8002 ? &set_rx_mode_8002 : &set_rx_mode_8012;
- dev->tx_timeout = tx_timeout;
+ dev->netdev_ops = &atp_netdev_ops;
dev->watchdog_timeo = TX_TIMEOUT;
res = register_netdev(dev);
sa_offset = 15;
for (i = 0; i < 3; i++)
- ((u16 *)dev->dev_addr)[i] =
- be16_to_cpu(eeprom_op(ioaddr, EE_READ(sa_offset + i)));
+ ((__be16 *)dev->dev_addr)[i] =
+ cpu_to_be16(eeprom_op(ioaddr, EE_READ(sa_offset + i)));
write_reg(ioaddr, CMR2, CMR2_NULL);
}
registers that "should" only need to be set once at boot, so that
there is non-reboot way to recover if something goes wrong.
- This is an attachable device: if there is no dev->priv entry then it wasn't
+ This is an attachable device: if there is no private entry then it wasn't
probed for at boot-time, and we need to probe for it again.
*/
static int net_open(struct net_device *dev)
/* The interrupt line is turned off (tri-stated) when the device isn't in
use. That's especially important for "attached" interfaces where the
port or interrupt may be shared. */
- ret = request_irq(dev->irq, &atp_interrupt, 0, dev->name, dev);
+ ret = request_irq(dev->irq, atp_interrupt, 0, dev->name, dev);
if (ret)
return ret;
init_timer(&lp->timer);
lp->timer.expires = jiffies + TIMED_CHECKER;
lp->timer.data = (unsigned long)dev;
- lp->timer.function = &atp_timed_checker; /* timer handler */
+ lp->timer.function = atp_timed_checker; /* timer handler */
add_timer(&lp->timer);
netif_start_queue(dev);
static void tx_timeout(struct net_device *dev)
{
- struct net_local *np = netdev_priv(dev);
long ioaddr = dev->base_addr;
printk(KERN_WARNING "%s: Transmit timed out, %s?\n", dev->name,
inb(ioaddr + PAR_CONTROL) & 0x10 ? "network cable problem"
: "IRQ conflict");
- np->stats.tx_errors++;
+ dev->stats.tx_errors++;
/* Try to restart the adapter. */
hardware_init(dev);
- dev->trans_start = jiffies;
+ dev->trans_start = jiffies; /* prevent tx timeout */
netif_wake_queue(dev);
- np->stats.tx_errors++;
+ dev->stats.tx_errors++;
}
-static int atp_send_packet(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t atp_send_packet(struct sk_buff *skb,
+ struct net_device *dev)
{
struct net_local *lp = netdev_priv(dev);
long ioaddr = dev->base_addr;
write_reg(ioaddr, IMR, ISR_RxOK | ISR_TxErr | ISR_TxOK);
write_reg_high(ioaddr, IMR, ISRh_RxErr);
- dev->trans_start = jiffies;
dev_kfree_skb (skb);
- return 0;
+ return NETDEV_TX_OK;
}
/* We acknowledged the normal Rx interrupt, so if the interrupt
is still outstanding we must have a Rx error. */
if (read_status & (CMR1_IRQ << 3)) { /* Overrun. */
- lp->stats.rx_over_errors++;
+ dev->stats.rx_over_errors++;
/* Set to no-accept mode long enough to remove a packet. */
write_reg_high(ioaddr, CMR2, CMR2h_OFF);
net_rx(dev);
and reinitialize the adapter. */
write_reg(ioaddr, ISR, ISR_TxErr + ISR_TxOK);
if (status & (ISR_TxErr<<3)) {
- lp->stats.collisions++;
+ dev->stats.collisions++;
if (++lp->re_tx > 15) {
- lp->stats.tx_aborted_errors++;
+ dev->stats.tx_aborted_errors++;
hardware_init(dev);
break;
}
write_reg(ioaddr, CMR1, CMR1_ReXmit + CMR1_Xmit);
} else {
/* Finish up the transmit. */
- lp->stats.tx_packets++;
+ dev->stats.tx_packets++;
lp->pac_cnt_in_tx_buf--;
if ( lp->saved_tx_size) {
trigger_send(ioaddr, lp->saved_tx_size);
netif_wake_queue(dev); /* Inform upper layers. */
}
num_tx_since_rx++;
- } else if (num_tx_since_rx > 8
- && time_after(jiffies, dev->last_rx + HZ)) {
+ } else if (num_tx_since_rx > 8 &&
+ time_after(jiffies, dev->last_rx + HZ)) {
if (net_debug > 2)
printk(KERN_DEBUG "%s: Missed packet? No Rx after %d Tx and "
"%ld jiffies status %02x CMR1 %02x.\n", dev->name,
num_tx_since_rx, jiffies - dev->last_rx, status,
(read_nibble(ioaddr, CMR1) >> 3) & 15);
- lp->stats.rx_missed_errors++;
+ dev->stats.rx_missed_errors++;
hardware_init(dev);
num_tx_since_rx = 0;
break;
struct net_local *lp = netdev_priv(atp_timed_dev);
write_reg_byte(ioaddr, PAR0 + i, atp_timed_dev->dev_addr[i]);
if (i == 2)
- lp->stats.tx_errors++;
+ dev->stats.tx_errors++;
else if (i == 3)
- lp->stats.tx_dropped++;
+ dev->stats.tx_dropped++;
else if (i == 4)
- lp->stats.collisions++;
+ dev->stats.collisions++;
else
- lp->stats.rx_errors++;
+ dev->stats.rx_errors++;
}
#endif
}
printk(KERN_DEBUG " rx_count %04x %04x %04x %04x..", rx_head.pad,
rx_head.rx_count, rx_head.rx_status, rx_head.cur_addr);
if ((rx_head.rx_status & 0x77) != 0x01) {
- lp->stats.rx_errors++;
- if (rx_head.rx_status & 0x0004) lp->stats.rx_frame_errors++;
- else if (rx_head.rx_status & 0x0002) lp->stats.rx_crc_errors++;
+ dev->stats.rx_errors++;
+ if (rx_head.rx_status & 0x0004) dev->stats.rx_frame_errors++;
+ else if (rx_head.rx_status & 0x0002) dev->stats.rx_crc_errors++;
if (net_debug > 3)
printk(KERN_DEBUG "%s: Unknown ATP Rx error %04x.\n",
dev->name, rx_head.rx_status);
if (rx_head.rx_status & 0x0020) {
- lp->stats.rx_fifo_errors++;
+ dev->stats.rx_fifo_errors++;
write_reg_high(ioaddr, CMR1, CMR1h_TxENABLE);
write_reg_high(ioaddr, CMR1, CMR1h_RxENABLE | CMR1h_TxENABLE);
} else if (rx_head.rx_status & 0x0050)
if (skb == NULL) {
printk(KERN_ERR "%s: Memory squeeze, dropping packet.\n",
dev->name);
- lp->stats.rx_dropped++;
+ dev->stats.rx_dropped++;
goto done;
}
skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb);
dev->last_rx = jiffies;
- lp->stats.rx_packets++;
- lp->stats.rx_bytes += pkt_len;
+ dev->stats.rx_packets++;
+ dev->stats.rx_bytes += pkt_len;
}
done:
write_reg(ioaddr, CMR1, CMR1_NextPkt);
lp->last_rx_time = jiffies;
- return;
}
static void read_block(long ioaddr, int length, unsigned char *p, int data_mode)
{
-
if (data_mode <= 3) { /* Mode 0 or 1 */
outb(Ctrl_LNibRead, ioaddr + PAR_CONTROL);
outb(length == 8 ? RdAddr | HNib | MAR : RdAddr | MAR,
ioaddr + PAR_DATA);
if (data_mode <= 1) { /* Mode 0 or 1 */
- do *p++ = read_byte_mode0(ioaddr); while (--length > 0);
- } else /* Mode 2 or 3 */
- do *p++ = read_byte_mode2(ioaddr); while (--length > 0);
- } else if (data_mode <= 5)
- do *p++ = read_byte_mode4(ioaddr); while (--length > 0);
- else
- do *p++ = read_byte_mode6(ioaddr); while (--length > 0);
+ do { *p++ = read_byte_mode0(ioaddr); } while (--length > 0);
+ } else { /* Mode 2 or 3 */
+ do { *p++ = read_byte_mode2(ioaddr); } while (--length > 0);
+ }
+ } else if (data_mode <= 5) {
+ do { *p++ = read_byte_mode4(ioaddr); } while (--length > 0);
+ } else {
+ do { *p++ = read_byte_mode6(ioaddr); } while (--length > 0);
+ }
- outb(EOC+HNib+MAR, ioaddr + PAR_DATA);
+ outb(EOC+HNib+MAR, ioaddr + PAR_DATA);
outb(Ctrl_SelData, ioaddr + PAR_CONTROL);
}
return 0;
}
-/* Get the current statistics. This may be called with the card open or
- closed. */
-static struct net_device_stats *
-net_get_stats(struct net_device *dev)
-{
- struct net_local *lp = netdev_priv(dev);
- return &lp->stats;
-}
-
/*
* Set or clear the multicast filter for this adapter.
*/
struct net_local *lp = netdev_priv(dev);
long ioaddr = dev->base_addr;
- if ( dev->mc_count > 0 || (dev->flags & (IFF_ALLMULTI|IFF_PROMISC))) {
- /* We must make the kernel realise we had to move
- * into promisc mode or we start all out war on
- * the cable. - AC
- */
- dev->flags|=IFF_PROMISC;
+ if (!netdev_mc_empty(dev) || (dev->flags & (IFF_ALLMULTI|IFF_PROMISC)))
lp->addr_mode = CMR2h_PROMISC;
- } else
+ else
lp->addr_mode = CMR2h_Normal;
write_reg_high(ioaddr, CMR2, lp->addr_mode);
}
if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
new_mode = CMR2h_PROMISC;
- } else if ((dev->mc_count > 1000) || (dev->flags & IFF_ALLMULTI)) {
+ } else if ((netdev_mc_count(dev) > 1000) ||
+ (dev->flags & IFF_ALLMULTI)) {
/* Too many to filter perfectly -- accept all multicasts. */
memset(mc_filter, 0xff, sizeof(mc_filter));
new_mode = CMR2h_Normal;
} else {
- struct dev_mc_list *mclist;
+ struct netdev_hw_addr *ha;
memset(mc_filter, 0, sizeof(mc_filter));
- for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
- i++, mclist = mclist->next)
- {
- int filterbit = ether_crc_le(ETH_ALEN, mclist->dmi_addr) & 0x3f;
+ netdev_for_each_mc_addr(ha, dev) {
+ int filterbit = ether_crc_le(ETH_ALEN, ha->addr) & 0x3f;
mc_filter[filterbit >> 5] |= 1 << (filterbit & 31);
}
new_mode = CMR2h_Normal;
write_reg(ioaddr, CMR2, CMR2_IRQOUT); /* Switch back to page 0 */
}
+static void set_rx_mode(struct net_device *dev)
+{
+ struct net_local *lp = netdev_priv(dev);
+
+ if (lp->chip_type == RTL8002)
+ return set_rx_mode_8002(dev);
+ else
+ return set_rx_mode_8012(dev);
+}
+
+
static int __init atp_init_module(void) {
if (debug) /* Emit version even if no cards detected. */
printk(KERN_INFO "%s", version);
struct net_device *next_dev;
while (root_atp_dev) {
- next_dev = ((struct net_local *)root_atp_dev->priv)->next_module;
+ struct net_local *atp_local = netdev_priv(root_atp_dev);
+ next_dev = atp_local->next_module;
unregister_netdev(root_atp_dev);
/* No need to release_region(), since we never snarf it. */
free_netdev(root_atp_dev);
Code Review / linux-3.10.git / blobdiff