#include <linux/string.h>
#include <linux/delay.h>
#include <linux/netdevice.h>
+#include <linux/platform_device.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <asm/sgi/hpc3.h>
#include <asm/sgi/ip22.h>
+#include <asm/sgi/seeq.h>
#include "sgiseeq.h"
struct sgiseeq_private {
struct sgiseeq_init_block *srings;
+ dma_addr_t srings_dma;
/* Ptrs to the descriptors in uncached space. */
struct sgiseeq_rx_desc *rx_desc;
unsigned char control;
unsigned char mode;
- struct net_device_stats stats;
-
- struct net_device *next_module;
spinlock_t tx_lock;
};
-/* A list of all installed seeq devices, for removing the driver module. */
-static struct net_device *root_sgiseeq_dev;
-
static inline void hpc3_eth_reset(struct hpc3_ethregs *hregs)
{
hregs->reset = HPC3_ERST_CRESET | HPC3_ERST_CLRIRQ;
return 0;
}
-static inline void record_rx_errors(struct sgiseeq_private *sp,
- unsigned char status)
+static void record_rx_errors(struct net_device *dev, unsigned char status)
{
if (status & SEEQ_RSTAT_OVERF ||
status & SEEQ_RSTAT_SFRAME)
- sp->stats.rx_over_errors++;
+ dev->stats.rx_over_errors++;
if (status & SEEQ_RSTAT_CERROR)
- sp->stats.rx_crc_errors++;
+ dev->stats.rx_crc_errors++;
if (status & SEEQ_RSTAT_DERROR)
- sp->stats.rx_frame_errors++;
+ dev->stats.rx_frame_errors++;
if (status & SEEQ_RSTAT_REOF)
- sp->stats.rx_errors++;
+ dev->stats.rx_errors++;
}
static inline void rx_maybe_restart(struct sgiseeq_private *sp,
skb_put(skb, len);
/* Copy out of kseg1 to avoid silly cache flush. */
- eth_copy_and_sum(skb, pkt_pointer + 2, len, 0);
+ skb_copy_to_linear_data(skb, pkt_pointer + 2, len);
skb->protocol = eth_type_trans(skb, dev);
/* We don't want to receive our own packets */
if (memcmp(eth_hdr(skb)->h_source, dev->dev_addr, ETH_ALEN)) {
netif_rx(skb);
dev->last_rx = jiffies;
- sp->stats.rx_packets++;
- sp->stats.rx_bytes += len;
+ dev->stats.rx_packets++;
+ dev->stats.rx_bytes += len;
} else {
/* Silently drop my own packets */
dev_kfree_skb_irq(skb);
} else {
printk (KERN_NOTICE "%s: Memory squeeze, deferring packet.\n",
dev->name);
- sp->stats.rx_dropped++;
+ dev->stats.rx_dropped++;
}
} else {
- record_rx_errors(sp, pkt_status);
+ record_rx_errors(dev, pkt_status);
}
/* Return the entry to the ring pool. */
if (!(status & (HPC3_ETXCTRL_ACTIVE | SEEQ_TSTAT_PTRANS))) {
/* Oops, HPC detected some sort of error. */
if (status & SEEQ_TSTAT_R16)
- sp->stats.tx_aborted_errors++;
+ dev->stats.tx_aborted_errors++;
if (status & SEEQ_TSTAT_UFLOW)
- sp->stats.tx_fifo_errors++;
+ dev->stats.tx_fifo_errors++;
if (status & SEEQ_TSTAT_LCLS)
- sp->stats.collisions++;
+ dev->stats.collisions++;
}
/* Ack 'em... */
}
break;
}
- sp->stats.tx_packets++;
+ dev->stats.tx_packets++;
sp->tx_old = NEXT_TX(sp->tx_old);
td->tdma.cntinfo &= ~(HPCDMA_XIU | HPCDMA_XIE);
td->tdma.cntinfo |= HPCDMA_EOX;
/* Setup... */
skblen = skb->len;
len = (skblen <= ETH_ZLEN) ? ETH_ZLEN : skblen;
- sp->stats.tx_bytes += len;
+ dev->stats.tx_bytes += len;
entry = sp->tx_new;
td = &sp->tx_desc[entry];
netif_wake_queue(dev);
}
-static struct net_device_stats *sgiseeq_get_stats(struct net_device *dev)
-{
- struct sgiseeq_private *sp = netdev_priv(dev);
-
- return &sp->stats;
-}
-
static void sgiseeq_set_multicast(struct net_device *dev)
{
struct sgiseeq_private *sp = (struct sgiseeq_private *) dev->priv;
#define ALIGNED(x) ((((unsigned long)(x)) + 0xf) & ~(0xf))
-static int sgiseeq_init(struct hpc3_regs* hpcregs, int irq, int has_eeprom)
+static int __init sgiseeq_probe(struct platform_device *pdev)
{
+ struct sgiseeq_platform_data *pd = pdev->dev.platform_data;
+ struct hpc3_regs *hpcregs = pd->hpc;
struct sgiseeq_init_block *sr;
+ unsigned int irq = pd->irq;
struct sgiseeq_private *sp;
struct net_device *dev;
int err, i;
err = -ENOMEM;
goto err_out;
}
+
+ platform_set_drvdata(pdev, dev);
sp = netdev_priv(dev);
/* Make private data page aligned */
- sr = (struct sgiseeq_init_block *) get_zeroed_page(GFP_KERNEL);
+ sr = dma_alloc_coherent(&pdev->dev, sizeof(*sp->srings),
+ &sp->srings_dma, GFP_KERNEL);
if (!sr) {
printk(KERN_ERR "Sgiseeq: Page alloc failed, aborting.\n");
err = -ENOMEM;
goto err_out_free_dev;
}
sp->srings = sr;
+ sp->rx_desc = sp->srings->rxvector;
+ sp->tx_desc = sp->srings->txvector;
-#define EADDR_NVOFS 250
- for (i = 0; i < 3; i++) {
- unsigned short tmp = has_eeprom ?
- ip22_eeprom_read(&hpcregs->eeprom, EADDR_NVOFS / 2+i) :
- ip22_nvram_read(EADDR_NVOFS / 2+i);
+ /* A couple calculations now, saves many cycles later. */
+ setup_rx_ring(sp->rx_desc, SEEQ_RX_BUFFERS);
+ setup_tx_ring(sp->tx_desc, SEEQ_TX_BUFFERS);
- dev->dev_addr[2 * i] = tmp >> 8;
- dev->dev_addr[2 * i + 1] = tmp & 0xff;
- }
+ memcpy(dev->dev_addr, pd->mac, ETH_ALEN);
#ifdef DEBUG
gpriv = sp;
sp->name = sgiseeqstr;
sp->mode = SEEQ_RCMD_RBCAST;
- sp->rx_desc = (struct sgiseeq_rx_desc *)
- CKSEG1ADDR(ALIGNED(&sp->srings->rxvector[0]));
- dma_cache_wback_inv((unsigned long)&sp->srings->rxvector,
- sizeof(sp->srings->rxvector));
- sp->tx_desc = (struct sgiseeq_tx_desc *)
- CKSEG1ADDR(ALIGNED(&sp->srings->txvector[0]));
- dma_cache_wback_inv((unsigned long)&sp->srings->txvector,
- sizeof(sp->srings->txvector));
-
- /* A couple calculations now, saves many cycles later. */
- setup_rx_ring(sp->rx_desc, SEEQ_RX_BUFFERS);
- setup_tx_ring(sp->tx_desc, SEEQ_TX_BUFFERS);
-
/* Setup PIO and DMA transfer timing */
sp->hregs->pconfig = 0x161;
sp->hregs->dconfig = HPC3_EDCFG_FIRQ | HPC3_EDCFG_FEOP |
dev->hard_start_xmit = sgiseeq_start_xmit;
dev->tx_timeout = timeout;
dev->watchdog_timeo = (200 * HZ) / 1000;
- dev->get_stats = sgiseeq_get_stats;
dev->set_multicast_list = sgiseeq_set_multicast;
dev->set_mac_address = sgiseeq_set_mac_address;
dev->irq = irq;
for (i = 0; i < 6; i++)
printk("%2.2x%c", dev->dev_addr[i], i == 5 ? '\n' : ':');
- sp->next_module = root_sgiseeq_dev;
- root_sgiseeq_dev = dev;
-
return 0;
err_out_free_page:
return err;
}
-static int __init sgiseeq_probe(void)
+static int __exit sgiseeq_remove(struct platform_device *pdev)
{
- unsigned int tmp, ret1, ret2 = 0;
-
- /* On board adapter on 1st HPC is always present */
- ret1 = sgiseeq_init(hpc3c0, SGI_ENET_IRQ, 0);
- /* Let's see if second HPC is there */
- if (!(ip22_is_fullhouse()) &&
- get_dbe(tmp, (unsigned int *)&hpc3c1->pbdma[1]) == 0) {
- sgimc->giopar |= SGIMC_GIOPAR_MASTEREXP1 |
- SGIMC_GIOPAR_EXP164 |
- SGIMC_GIOPAR_HPC264;
- hpc3c1->pbus_piocfg[0][0] = 0x3ffff;
- /* interrupt/config register on Challenge S Mezz board */
- hpc3c1->pbus_extregs[0][0] = 0x30;
- ret2 = sgiseeq_init(hpc3c1, SGI_GIO_0_IRQ, 1);
- }
+ struct net_device *dev = platform_get_drvdata(pdev);
+ struct sgiseeq_private *sp = netdev_priv(dev);
- return (ret1 & ret2) ? ret1 : 0;
+ unregister_netdev(dev);
+ dma_free_coherent(&pdev->dev, sizeof(*sp->srings), sp->srings,
+ sp->srings_dma);
+ free_netdev(dev);
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
}
-static void __exit sgiseeq_exit(void)
-{
- struct net_device *next, *dev;
- struct sgiseeq_private *sp;
+static struct platform_driver sgiseeq_driver = {
+ .probe = sgiseeq_probe,
+ .remove = __devexit_p(sgiseeq_remove),
+ .driver = {
+ .name = "sgiseeq"
+ }
+};
- for (dev = root_sgiseeq_dev; dev; dev = next) {
- sp = (struct sgiseeq_private *) netdev_priv(dev);
- next = sp->next_module;
- unregister_netdev(dev);
- free_page((unsigned long) sp->srings);
- free_netdev(dev);
+static int __init sgiseeq_module_init(void)
+{
+ if (platform_driver_register(&sgiseeq_driver)) {
+ printk(KERN_ERR "Driver registration failed\n");
+ return -ENODEV;
}
+
+ return 0;
+}
+
+static void __exit sgiseeq_module_exit(void)
+{
+ platform_driver_unregister(&sgiseeq_driver);
}
-module_init(sgiseeq_probe);
-module_exit(sgiseeq_exit);
+module_init(sgiseeq_module_init);
+module_exit(sgiseeq_module_exit);
MODULE_DESCRIPTION("SGI Seeq 8003 driver");
MODULE_AUTHOR("Linux/MIPS Mailing List <linux-mips@linux-mips.org>");