*
* adopted from sunlance.c by Richard van den Berg
*
- * Copyright (C) 2002, 2003, 2005 Maciej W. Rozycki
+ * Copyright (C) 2002, 2003, 2005, 2006 Maciej W. Rozycki
*
* additional sources:
* - PMAD-AA TURBOchannel Ethernet Module Functional Specification,
* v0.010: Fixes for the PMAD mapping of the LANCE buffer and for the
* PMAX requirement to only use halfword accesses to the
* buffer. macro
+ *
+ * v0.011: Converted the PMAD to the driver model. macro
*/
#include <linux/crc32.h>
#include <linux/spinlock.h>
#include <linux/stddef.h>
#include <linux/string.h>
+#include <linux/tc.h>
#include <linux/types.h>
#include <asm/addrspace.h>
#include <asm/dec/kn01.h>
#include <asm/dec/machtype.h>
#include <asm/dec/system.h>
-#include <asm/dec/tc.h>
static char version[] __devinitdata =
-"declance.c: v0.010 by Linux MIPS DECstation task force\n";
+"declance.c: v0.011 by Linux MIPS DECstation task force\n";
MODULE_AUTHOR("Linux MIPS DECstation task force");
MODULE_DESCRIPTION("DEC LANCE (DECstation onboard, PMAD-xx) driver");
MODULE_LICENSE("GPL");
+#define __unused __attribute__ ((unused))
+
/*
* card types
*/
struct lance_private {
struct net_device *next;
int type;
- int slot;
int dma_irq;
volatile struct lance_regs *ll;
int rx_new, tx_new;
int rx_old, tx_old;
- struct net_device_stats stats;
-
unsigned short busmaster_regval;
struct timer_list multicast_timer;
int dec_lance_debug = 2;
+static struct tc_driver dec_lance_tc_driver;
static struct net_device *root_lance_dev;
static inline void writereg(volatile unsigned short *regptr, short value)
/* We got an incomplete frame? */
if ((bits & LE_R1_POK) != LE_R1_POK) {
- lp->stats.rx_over_errors++;
- lp->stats.rx_errors++;
+ dev->stats.rx_over_errors++;
+ dev->stats.rx_errors++;
} else if (bits & LE_R1_ERR) {
/* Count only the end frame as a rx error,
* not the beginning
*/
if (bits & LE_R1_BUF)
- lp->stats.rx_fifo_errors++;
+ dev->stats.rx_fifo_errors++;
if (bits & LE_R1_CRC)
- lp->stats.rx_crc_errors++;
+ dev->stats.rx_crc_errors++;
if (bits & LE_R1_OFL)
- lp->stats.rx_over_errors++;
+ dev->stats.rx_over_errors++;
if (bits & LE_R1_FRA)
- lp->stats.rx_frame_errors++;
+ dev->stats.rx_frame_errors++;
if (bits & LE_R1_EOP)
- lp->stats.rx_errors++;
+ dev->stats.rx_errors++;
} else {
len = (*rds_ptr(rd, mblength, lp->type) & 0xfff) - 4;
skb = dev_alloc_skb(len + 2);
if (skb == 0) {
printk("%s: Memory squeeze, deferring packet.\n",
dev->name);
- lp->stats.rx_dropped++;
+ dev->stats.rx_dropped++;
*rds_ptr(rd, mblength, lp->type) = 0;
*rds_ptr(rd, rmd1, lp->type) =
((lp->rx_buf_ptr_lnc[entry] >> 16) &
lp->rx_new = (entry + 1) & RX_RING_MOD_MASK;
return 0;
}
- lp->stats.rx_bytes += len;
+ dev->stats.rx_bytes += len;
- skb->dev = dev;
skb_reserve(skb, 2); /* 16 byte align */
skb_put(skb, len); /* make room */
skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb);
- dev->last_rx = jiffies;
- lp->stats.rx_packets++;
+ dev->stats.rx_packets++;
}
/* Return the packet to the pool */
if (*tds_ptr(td, tmd1, lp->type) & LE_T1_ERR) {
status = *tds_ptr(td, misc, lp->type);
- lp->stats.tx_errors++;
+ dev->stats.tx_errors++;
if (status & LE_T3_RTY)
- lp->stats.tx_aborted_errors++;
+ dev->stats.tx_aborted_errors++;
if (status & LE_T3_LCOL)
- lp->stats.tx_window_errors++;
+ dev->stats.tx_window_errors++;
if (status & LE_T3_CLOS) {
- lp->stats.tx_carrier_errors++;
+ dev->stats.tx_carrier_errors++;
printk("%s: Carrier Lost\n", dev->name);
/* Stop the lance */
writereg(&ll->rap, LE_CSR0);
* transmitter, restart the adapter.
*/
if (status & (LE_T3_BUF | LE_T3_UFL)) {
- lp->stats.tx_fifo_errors++;
+ dev->stats.tx_fifo_errors++;
printk("%s: Tx: ERR_BUF|ERR_UFL, restarting\n",
dev->name);
/* One collision before packet was sent. */
if (*tds_ptr(td, tmd1, lp->type) & LE_T1_EONE)
- lp->stats.collisions++;
+ dev->stats.collisions++;
/* More than one collision, be optimistic. */
if (*tds_ptr(td, tmd1, lp->type) & LE_T1_EMORE)
- lp->stats.collisions += 2;
+ dev->stats.collisions += 2;
- lp->stats.tx_packets++;
+ dev->stats.tx_packets++;
}
j = (j + 1) & TX_RING_MOD_MASK;
}
spin_unlock(&lp->lock);
}
-static irqreturn_t lance_dma_merr_int(const int irq, void *dev_id)
+static irqreturn_t lance_dma_merr_int(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
- printk("%s: DMA error\n", dev->name);
+ printk(KERN_ERR "%s: DMA error\n", dev->name);
return IRQ_HANDLED;
}
-static irqreturn_t lance_interrupt(const int irq, void *dev_id)
+static irqreturn_t lance_interrupt(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
struct lance_private *lp = netdev_priv(dev);
lance_tx(dev);
if (csr0 & LE_C0_BABL)
- lp->stats.tx_errors++;
+ dev->stats.tx_errors++;
if (csr0 & LE_C0_MISS)
- lp->stats.rx_errors++;
+ dev->stats.rx_errors++;
if (csr0 & LE_C0_MERR) {
printk("%s: Memory error, status %04x\n", dev->name, csr0);
return IRQ_HANDLED;
}
-struct net_device *last_dev = 0;
-
static int lance_open(struct net_device *dev)
{
volatile u16 *ib = (volatile u16 *)dev->mem_start;
volatile struct lance_regs *ll = lp->ll;
int status = 0;
- last_dev = dev;
-
/* Stop the Lance */
writereg(&ll->rap, LE_CSR0);
writereg(&ll->rdp, LE_C0_STOP);
netif_start_queue(dev);
/* Associate IRQ with lance_interrupt */
- if (request_irq(dev->irq, &lance_interrupt, 0, "lance", dev)) {
+ if (request_irq(dev->irq, lance_interrupt, 0, "lance", dev)) {
printk("%s: Can't get IRQ %d\n", dev->name, dev->irq);
return -EAGAIN;
}
if (lp->dma_irq >= 0) {
unsigned long flags;
- if (request_irq(lp->dma_irq, &lance_dma_merr_int, 0,
+ if (request_irq(lp->dma_irq, lance_dma_merr_int, 0,
"lance error", dev)) {
free_irq(dev->irq, dev);
printk("%s: Can't get DMA IRQ %d\n", dev->name,
lance_init_ring(dev);
load_csrs(lp);
- dev->trans_start = jiffies;
+ dev->trans_start = jiffies; /* prevent tx timeout */
status = init_restart_lance(lp);
return status;
}
struct lance_private *lp = netdev_priv(dev);
volatile struct lance_regs *ll = lp->ll;
volatile u16 *ib = (volatile u16 *)dev->mem_start;
+ unsigned long flags;
int entry, len;
len = skb->len;
if (len < ETH_ZLEN) {
if (skb_padto(skb, ETH_ZLEN))
- return 0;
+ return NETDEV_TX_OK;
len = ETH_ZLEN;
}
- lp->stats.tx_bytes += len;
+ dev->stats.tx_bytes += len;
+
+ spin_lock_irqsave(&lp->lock, flags);
entry = lp->tx_new;
*lib_ptr(ib, btx_ring[entry].length, lp->type) = (-len);
/* Kick the lance: transmit now */
writereg(&ll->rdp, LE_C0_INEA | LE_C0_TDMD);
- spin_unlock_irq(&lp->lock);
+ spin_unlock_irqrestore(&lp->lock, flags);
- dev->trans_start = jiffies;
dev_kfree_skb(skb);
- return 0;
-}
-
-static struct net_device_stats *lance_get_stats(struct net_device *dev)
-{
- struct lance_private *lp = netdev_priv(dev);
-
- return &lp->stats;
+ return NETDEV_TX_OK;
}
static void lance_load_multicast(struct net_device *dev)
{
struct lance_private *lp = netdev_priv(dev);
volatile u16 *ib = (volatile u16 *)dev->mem_start;
- struct dev_mc_list *dmi = dev->mc_list;
+ struct netdev_hw_addr *ha;
char *addrs;
- int i;
u32 crc;
/* set all multicast bits */
*lib_ptr(ib, filter[3], lp->type) = 0;
/* Add addresses */
- for (i = 0; i < dev->mc_count; i++) {
- addrs = dmi->dmi_addr;
- dmi = dmi->next;
+ netdev_for_each_mc_addr(ha, dev) {
+ addrs = ha->addr;
/* multicast address? */
if (!(*addrs & 1))
crc = crc >> 26;
*lib_ptr(ib, filter[crc >> 4], lp->type) |= 1 << (crc & 0xf);
}
- return;
}
static void lance_set_multicast(struct net_device *dev)
lance_set_multicast(dev);
}
-static int __init dec_lance_init(const int type, const int slot)
+static const struct net_device_ops lance_netdev_ops = {
+ .ndo_open = lance_open,
+ .ndo_stop = lance_close,
+ .ndo_start_xmit = lance_start_xmit,
+ .ndo_tx_timeout = lance_tx_timeout,
+ .ndo_set_multicast_list = lance_set_multicast,
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_mac_address = eth_mac_addr,
+};
+
+static int __init dec_lance_probe(struct device *bdev, const int type)
{
static unsigned version_printed;
static const char fmt[] = "declance%d";
struct net_device *dev;
struct lance_private *lp;
volatile struct lance_regs *ll;
+ resource_size_t start = 0, len = 0;
int i, ret;
unsigned long esar_base;
unsigned char *esar;
if (dec_lance_debug && version_printed++ == 0)
printk(version);
- i = 0;
- dev = root_lance_dev;
- while (dev) {
- i++;
- lp = (struct lance_private *)dev->priv;
- dev = lp->next;
+ if (bdev)
+ snprintf(name, sizeof(name), "%s", dev_name(bdev));
+ else {
+ i = 0;
+ dev = root_lance_dev;
+ while (dev) {
+ i++;
+ lp = netdev_priv(dev);
+ dev = lp->next;
+ }
+ snprintf(name, sizeof(name), fmt, i);
}
- snprintf(name, sizeof(name), fmt, i);
dev = alloc_etherdev(sizeof(struct lance_private));
if (!dev) {
spin_lock_init(&lp->lock);
lp->type = type;
- lp->slot = slot;
switch (type) {
case ASIC_LANCE:
dev->base_addr = CKSEG1ADDR(dec_kn_slot_base + IOASIC_LANCE);
break;
#ifdef CONFIG_TC
case PMAD_LANCE:
- claim_tc_card(slot);
+ dev_set_drvdata(bdev, dev);
+
+ start = to_tc_dev(bdev)->resource.start;
+ len = to_tc_dev(bdev)->resource.end - start + 1;
+ if (!request_mem_region(start, len, dev_name(bdev))) {
+ printk(KERN_ERR
+ "%s: Unable to reserve MMIO resource\n",
+ dev_name(bdev));
+ ret = -EBUSY;
+ goto err_out_dev;
+ }
- dev->mem_start = CKSEG1ADDR(get_tc_base_addr(slot));
+ dev->mem_start = CKSEG1ADDR(start);
dev->mem_end = dev->mem_start + 0x100000;
dev->base_addr = dev->mem_start + 0x100000;
- dev->irq = get_tc_irq_nr(slot);
+ dev->irq = to_tc_dev(bdev)->interrupt;
esar_base = dev->mem_start + 0x1c0002;
lp->dma_irq = -1;
printk(KERN_ERR "%s: declance_init called with unknown type\n",
name);
ret = -ENODEV;
- goto err_out_free_dev;
+ goto err_out_dev;
}
ll = (struct lance_regs *) dev->base_addr;
"%s: Ethernet station address prom not found!\n",
name);
ret = -ENODEV;
- goto err_out_free_dev;
+ goto err_out_resource;
}
/* Check the prom contents */
for (i = 0; i < 8; i++) {
printk(KERN_ERR "%s: Something is wrong with the "
"ethernet station address prom!\n", name);
ret = -ENODEV;
- goto err_out_free_dev;
+ goto err_out_resource;
}
}
*/
switch (type) {
case ASIC_LANCE:
- printk("%s: IOASIC onboard LANCE, addr = ", name);
+ printk("%s: IOASIC onboard LANCE", name);
break;
case PMAD_LANCE:
- printk("%s: PMAD-AA, addr = ", name);
+ printk("%s: PMAD-AA", name);
break;
case PMAX_LANCE:
- printk("%s: PMAX onboard LANCE, addr = ", name);
+ printk("%s: PMAX onboard LANCE", name);
break;
}
- for (i = 0; i < 6; i++) {
+ for (i = 0; i < 6; i++)
dev->dev_addr[i] = esar[i * 4];
- printk("%2.2x%c", dev->dev_addr[i], i == 5 ? ',' : ':');
- }
- printk(" irq = %d\n", dev->irq);
+ printk(", addr = %pM, irq = %d\n", dev->dev_addr, dev->irq);
- dev->open = &lance_open;
- dev->stop = &lance_close;
- dev->hard_start_xmit = &lance_start_xmit;
- dev->tx_timeout = &lance_tx_timeout;
+ dev->netdev_ops = &lance_netdev_ops;
dev->watchdog_timeo = 5*HZ;
- dev->get_stats = &lance_get_stats;
- dev->set_multicast_list = &lance_set_multicast;
/* lp->ll is the location of the registers for lance card */
lp->ll = ll;
if (ret) {
printk(KERN_ERR
"%s: Unable to register netdev, aborting.\n", name);
- goto err_out_free_dev;
+ goto err_out_resource;
}
- lp->next = root_lance_dev;
- root_lance_dev = dev;
+ if (!bdev) {
+ lp->next = root_lance_dev;
+ root_lance_dev = dev;
+ }
printk("%s: registered as %s.\n", name, dev->name);
return 0;
-err_out_free_dev:
+err_out_resource:
+ if (bdev)
+ release_mem_region(start, len);
+
+err_out_dev:
free_netdev(dev);
err_out:
return ret;
}
+static void __exit dec_lance_remove(struct device *bdev)
+{
+ struct net_device *dev = dev_get_drvdata(bdev);
+ resource_size_t start, len;
+
+ unregister_netdev(dev);
+ start = to_tc_dev(bdev)->resource.start;
+ len = to_tc_dev(bdev)->resource.end - start + 1;
+ release_mem_region(start, len);
+ free_netdev(dev);
+}
/* Find all the lance cards on the system and initialize them */
-static int __init dec_lance_probe(void)
+static int __init dec_lance_platform_probe(void)
{
int count = 0;
- /* Scan slots for PMAD-AA cards first. */
-#ifdef CONFIG_TC
- if (TURBOCHANNEL) {
- int slot;
-
- while ((slot = search_tc_card("PMAD-AA")) >= 0) {
- if (dec_lance_init(PMAD_LANCE, slot) < 0)
- break;
- count++;
- }
- }
-#endif
-
- /* Then handle onboard devices. */
if (dec_interrupt[DEC_IRQ_LANCE] >= 0) {
if (dec_interrupt[DEC_IRQ_LANCE_MERR] >= 0) {
- if (dec_lance_init(ASIC_LANCE, -1) >= 0)
+ if (dec_lance_probe(NULL, ASIC_LANCE) >= 0)
count++;
} else if (!TURBOCHANNEL) {
- if (dec_lance_init(PMAX_LANCE, -1) >= 0)
+ if (dec_lance_probe(NULL, PMAX_LANCE) >= 0)
count++;
}
}
return (count > 0) ? 0 : -ENODEV;
}
-static void __exit dec_lance_cleanup(void)
+static void __exit dec_lance_platform_remove(void)
{
while (root_lance_dev) {
struct net_device *dev = root_lance_dev;
struct lance_private *lp = netdev_priv(dev);
unregister_netdev(dev);
-#ifdef CONFIG_TC
- if (lp->slot >= 0)
- release_tc_card(lp->slot);
-#endif
root_lance_dev = lp->next;
free_netdev(dev);
}
}
-module_init(dec_lance_probe);
-module_exit(dec_lance_cleanup);
+#ifdef CONFIG_TC
+static int __init dec_lance_tc_probe(struct device *dev);
+static int __exit dec_lance_tc_remove(struct device *dev);
+
+static const struct tc_device_id dec_lance_tc_table[] = {
+ { "DEC ", "PMAD-AA " },
+ { }
+};
+MODULE_DEVICE_TABLE(tc, dec_lance_tc_table);
+
+static struct tc_driver dec_lance_tc_driver = {
+ .id_table = dec_lance_tc_table,
+ .driver = {
+ .name = "declance",
+ .bus = &tc_bus_type,
+ .probe = dec_lance_tc_probe,
+ .remove = __exit_p(dec_lance_tc_remove),
+ },
+};
+
+static int __init dec_lance_tc_probe(struct device *dev)
+{
+ int status = dec_lance_probe(dev, PMAD_LANCE);
+ if (!status)
+ get_device(dev);
+ return status;
+}
+
+static int __exit dec_lance_tc_remove(struct device *dev)
+{
+ put_device(dev);
+ dec_lance_remove(dev);
+ return 0;
+}
+#endif
+
+static int __init dec_lance_init(void)
+{
+ int status;
+
+ status = tc_register_driver(&dec_lance_tc_driver);
+ if (!status)
+ dec_lance_platform_probe();
+ return status;
+}
+
+static void __exit dec_lance_exit(void)
+{
+ dec_lance_platform_remove();
+ tc_unregister_driver(&dec_lance_tc_driver);
+}
+
+
+module_init(dec_lance_init);
+module_exit(dec_lance_exit);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff