#define DEBUG
struct sgiseeq_rx_desc {
- volatile struct hpc_dma_desc rdma;
- volatile signed int buf_vaddr;
+ struct hpc_dma_desc rdma;
+ signed int buf_vaddr;
};
struct sgiseeq_tx_desc {
- volatile struct hpc_dma_desc tdma;
- volatile signed int buf_vaddr;
+ struct hpc_dma_desc tdma;
+ signed int buf_vaddr;
};
/*
* some care.
*/
struct sgiseeq_init_block { /* Note the name ;-) */
+ /* Ptrs to the descriptors in KSEG1 uncached space. */
+ struct sgiseeq_rx_desc *rx_desc;
+ struct sgiseeq_tx_desc *tx_desc;
+ unsigned int _padding[30]; /* Pad out to largest cache line size. */
+
struct sgiseeq_rx_desc rxvector[SEEQ_RX_BUFFERS];
struct sgiseeq_tx_desc txvector[SEEQ_TX_BUFFERS];
};
struct sgiseeq_private {
- struct sgiseeq_init_block *srings;
-
- /* Ptrs to the descriptors in uncached space. */
- struct sgiseeq_rx_desc *rx_desc;
- struct sgiseeq_tx_desc *tx_desc;
-
+ volatile struct sgiseeq_init_block srings;
char *name;
struct hpc3_ethregs *hregs;
struct sgiseeq_regs *sregs;
static int seeq_init_ring(struct net_device *dev)
{
- struct sgiseeq_private *sp = netdev_priv(dev);
+ struct sgiseeq_private *sp = dev->priv;
+ volatile struct sgiseeq_init_block *ib = &sp->srings;
int i;
netif_stop_queue(dev);
/* Setup tx ring. */
for(i = 0; i < SEEQ_TX_BUFFERS; i++) {
- if (!sp->tx_desc[i].tdma.pbuf) {
+ if (!ib->tx_desc[i].tdma.pbuf) {
unsigned long buffer;
buffer = (unsigned long) kmalloc(PKT_BUF_SZ, GFP_KERNEL);
if (!buffer)
return -ENOMEM;
- sp->tx_desc[i].buf_vaddr = KSEG1ADDR(buffer);
- sp->tx_desc[i].tdma.pbuf = CPHYSADDR(buffer);
+ ib->tx_desc[i].buf_vaddr = KSEG1ADDR(buffer);
+ ib->tx_desc[i].tdma.pbuf = CPHYSADDR(buffer);
}
- sp->tx_desc[i].tdma.cntinfo = TCNTINFO_INIT;
+ ib->tx_desc[i].tdma.cntinfo = TCNTINFO_INIT;
}
/* And now the rx ring. */
for (i = 0; i < SEEQ_RX_BUFFERS; i++) {
- if (!sp->rx_desc[i].rdma.pbuf) {
+ if (!ib->rx_desc[i].rdma.pbuf) {
unsigned long buffer;
buffer = (unsigned long) kmalloc(PKT_BUF_SZ, GFP_KERNEL);
if (!buffer)
return -ENOMEM;
- sp->rx_desc[i].buf_vaddr = KSEG1ADDR(buffer);
- sp->rx_desc[i].rdma.pbuf = CPHYSADDR(buffer);
+ ib->rx_desc[i].buf_vaddr = KSEG1ADDR(buffer);
+ ib->rx_desc[i].rdma.pbuf = CPHYSADDR(buffer);
}
- sp->rx_desc[i].rdma.cntinfo = RCNTINFO_INIT;
+ ib->rx_desc[i].rdma.cntinfo = RCNTINFO_INIT;
}
- sp->rx_desc[i - 1].rdma.cntinfo |= HPCDMA_EOR;
+ ib->rx_desc[i - 1].rdma.cntinfo |= HPCDMA_EOR;
return 0;
}
void sgiseeq_dump_rings(void)
{
static int once;
- struct sgiseeq_rx_desc *r = gpriv->rx_desc;
- struct sgiseeq_tx_desc *t = gpriv->tx_desc;
+ struct sgiseeq_rx_desc *r = gpriv->srings.rx_desc;
+ struct sgiseeq_tx_desc *t = gpriv->srings.tx_desc;
struct hpc3_ethregs *hregs = gpriv->hregs;
int i;
hregs->rx_dconfig |= RDMACFG_INIT;
- hregs->rx_ndptr = CPHYSADDR(sp->rx_desc);
- hregs->tx_ndptr = CPHYSADDR(sp->tx_desc);
+ hregs->rx_ndptr = CPHYSADDR(sp->srings.rx_desc);
+ hregs->tx_ndptr = CPHYSADDR(sp->srings.tx_desc);
seeq_go(sp, hregs, sregs);
return 0;
struct sgiseeq_regs *sregs)
{
if (!(hregs->rx_ctrl & HPC3_ERXCTRL_ACTIVE)) {
- hregs->rx_ndptr = CPHYSADDR(sp->rx_desc + sp->rx_new);
+ hregs->rx_ndptr = CPHYSADDR(sp->srings.rx_desc + sp->rx_new);
seeq_go(sp, hregs, sregs);
}
}
-#define for_each_rx(rd, sp) for((rd) = &(sp)->rx_desc[(sp)->rx_new]; \
+#define for_each_rx(rd, sp) for((rd) = &(sp)->srings.rx_desc[(sp)->rx_new]; \
!((rd)->rdma.cntinfo & HPCDMA_OWN); \
- (rd) = &(sp)->rx_desc[(sp)->rx_new])
+ (rd) = &(sp)->srings.rx_desc[(sp)->rx_new])
static inline void sgiseeq_rx(struct net_device *dev, struct sgiseeq_private *sp,
struct hpc3_ethregs *hregs,
rd->rdma.cntinfo = RCNTINFO_INIT;
sp->rx_new = NEXT_RX(sp->rx_new);
}
- sp->rx_desc[orig_end].rdma.cntinfo &= ~(HPCDMA_EOR);
- sp->rx_desc[PREV_RX(sp->rx_new)].rdma.cntinfo |= HPCDMA_EOR;
+ sp->srings.rx_desc[orig_end].rdma.cntinfo &= ~(HPCDMA_EOR);
+ sp->srings.rx_desc[PREV_RX(sp->rx_new)].rdma.cntinfo |= HPCDMA_EOR;
rx_maybe_restart(sp, hregs, sregs);
}
/* Ack 'em... */
for (j = sp->tx_old; j != sp->tx_new; j = NEXT_TX(j)) {
- td = &sp->tx_desc[j];
+ td = &sp->srings.tx_desc[j];
if (!(td->tdma.cntinfo & (HPCDMA_XIU)))
break;
static irqreturn_t sgiseeq_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
struct net_device *dev = (struct net_device *) dev_id;
- struct sgiseeq_private *sp = netdev_priv(dev);
+ struct sgiseeq_private *sp = dev->priv;
struct hpc3_ethregs *hregs = sp->hregs;
struct sgiseeq_regs *sregs = sp->sregs;
static int sgiseeq_open(struct net_device *dev)
{
- struct sgiseeq_private *sp = netdev_priv(dev);
+ struct sgiseeq_private *sp = dev->priv;
struct sgiseeq_regs *sregs = sp->sregs;
- unsigned int irq = dev->irq;
- int err;
- if (request_irq(irq, sgiseeq_interrupt, 0, sgiseeqstr, dev)) {
- printk(KERN_ERR "Seeq8003: Can't get irq %d\n", dev->irq);
- err = -EAGAIN;
- }
-
- err = init_seeq(dev, sp, sregs);
+ int err = init_seeq(dev, sp, sregs);
if (err)
- goto out_free_irq;
+ return err;
netif_start_queue(dev);
return 0;
-
-out_free_irq:
- free_irq(irq, dev);
-
- return err;
}
static int sgiseeq_close(struct net_device *dev)
{
- struct sgiseeq_private *sp = netdev_priv(dev);
+ struct sgiseeq_private *sp = dev->priv;
struct sgiseeq_regs *sregs = sp->sregs;
netif_stop_queue(dev);
static inline int sgiseeq_reset(struct net_device *dev)
{
- struct sgiseeq_private *sp = netdev_priv(dev);
+ struct sgiseeq_private *sp = dev->priv;
struct sgiseeq_regs *sregs = sp->sregs;
int err;
static int sgiseeq_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
- struct sgiseeq_private *sp = netdev_priv(dev);
+ struct sgiseeq_private *sp = dev->priv;
struct hpc3_ethregs *hregs = sp->hregs;
unsigned long flags;
struct sgiseeq_tx_desc *td;
len = (skblen <= ETH_ZLEN) ? ETH_ZLEN : skblen;
sp->stats.tx_bytes += len;
entry = sp->tx_new;
- td = &sp->tx_desc[entry];
+ td = &sp->srings.tx_desc[entry];
/* Create entry. There are so many races with adding a new
* descriptor to the chain:
if (sp->tx_old != sp->tx_new) {
struct sgiseeq_tx_desc *backend;
- backend = &sp->tx_desc[PREV_TX(sp->tx_new)];
+ backend = &sp->srings.tx_desc[PREV_TX(sp->tx_new)];
backend->tdma.cntinfo &= ~HPCDMA_EOX;
}
sp->tx_new = NEXT_TX(sp->tx_new); /* Advance. */
/* Maybe kick the HPC back into motion. */
if (!(hregs->tx_ctrl & HPC3_ETXCTRL_ACTIVE))
- kick_tx(&sp->tx_desc[sp->tx_old], hregs);
+ kick_tx(&sp->srings.tx_desc[sp->tx_old], hregs);
dev->trans_start = jiffies;
dev_kfree_skb(skb);
static struct net_device_stats *sgiseeq_get_stats(struct net_device *dev)
{
- struct sgiseeq_private *sp = netdev_priv(dev);
+ struct sgiseeq_private *sp = dev->priv;
return &sp->stats;
}
#define ALIGNED(x) ((((unsigned long)(x)) + 0xf) & ~(0xf))
-static int sgiseeq_init(struct hpc3_regs* regs, int irq)
+int sgiseeq_init(struct hpc3_regs* regs, int irq)
{
- struct sgiseeq_init_block *sr;
- struct sgiseeq_private *sp;
struct net_device *dev;
+ struct sgiseeq_private *sp;
int err, i;
- dev = alloc_etherdev(sizeof (struct sgiseeq_private));
+ dev = alloc_etherdev(0);
if (!dev) {
printk(KERN_ERR "Sgiseeq: Etherdev alloc failed, aborting.\n");
err = -ENOMEM;
goto err_out;
}
- sp = netdev_priv(dev);
-
/* Make private data page aligned */
- sr = (struct sgiseeq_init_block *) get_zeroed_page(GFP_KERNEL);
- if (!sr) {
+ sp = (struct sgiseeq_private *) get_zeroed_page(GFP_KERNEL);
+ if (!sp) {
printk(KERN_ERR "Sgiseeq: Page alloc failed, aborting.\n");
err = -ENOMEM;
goto err_out_free_dev;
}
- sp->srings = sr;
+
+ if (request_irq(irq, sgiseeq_interrupt, 0, sgiseeqstr, dev)) {
+ printk(KERN_ERR "Seeq8003: Can't get irq %d\n", dev->irq);
+ err = -EAGAIN;
+ goto err_out_free_page;
+ }
#define EADDR_NVOFS 250
for (i = 0; i < 3; i++) {
sp->hregs = &hpc3c0->ethregs;
sp->name = sgiseeqstr;
- sp->rx_desc = (struct sgiseeq_rx_desc *)
- KSEG1ADDR(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 *)
- KSEG1ADDR(ALIGNED(&sp->srings->txvector[0]));
- dma_cache_wback_inv((unsigned long)&sp->srings->txvector,
- sizeof(sp->srings->txvector));
+ sp->srings.rx_desc = (struct sgiseeq_rx_desc *)
+ KSEG1ADDR(ALIGNED(&sp->srings.rxvector[0]));
+ dma_cache_wback_inv((unsigned long)&sp->srings.rxvector,
+ sizeof(sp->srings.rxvector));
+ sp->srings.tx_desc = (struct sgiseeq_tx_desc *)
+ KSEG1ADDR(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_rx_ring(sp->srings.rx_desc, SEEQ_RX_BUFFERS);
+ setup_tx_ring(sp->srings.tx_desc, SEEQ_TX_BUFFERS);
/* Reset the chip. */
hpc3_eth_reset(sp->hregs);
dev->get_stats = sgiseeq_get_stats;
dev->set_multicast_list = sgiseeq_set_multicast;
dev->irq = irq;
+ dev->dma = 0;
+ dev->priv = sp;
if (register_netdev(dev)) {
printk(KERN_ERR "Sgiseeq: Cannot register net device, "
"aborting.\n");
err = -ENODEV;
- goto err_out_free_page;
+ goto err_out_free_irq;
}
printk(KERN_INFO "%s: SGI Seeq8003 ", dev->name);
return 0;
+err_out_free_irq:
+ free_irq(irq, dev);
err_out_free_page:
free_page((unsigned long) sp);
err_out_free_dev:
int irq;
for (dev = root_sgiseeq_dev; dev; dev = next) {
- sp = (struct sgiseeq_private *) netdev_priv(dev);
+ sp = (struct sgiseeq_private *) dev->priv;
next = sp->next_module;
irq = dev->irq;
unregister_netdev(dev);
free_irq(irq, dev);
- free_page((unsigned long) sp);
+ free_page((unsigned long) dev->priv);
free_netdev(dev);
}
}
git://git.onelab.eu / linux-2.6.git / blobdiff