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path: root/drivers/net/ethernet/natsemi/macsonic.c
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Diffstat (limited to 'drivers/net/ethernet/natsemi/macsonic.c')
-rw-r--r--drivers/net/ethernet/natsemi/macsonic.c93
1 files changed, 36 insertions, 57 deletions
diff --git a/drivers/net/ethernet/natsemi/macsonic.c b/drivers/net/ethernet/natsemi/macsonic.c
index 0937fc2a928e..b16f7c830f9b 100644
--- a/drivers/net/ethernet/natsemi/macsonic.c
+++ b/drivers/net/ethernet/natsemi/macsonic.c
@@ -51,8 +51,8 @@
#include <linux/dma-mapping.h>
#include <linux/bitrev.h>
#include <linux/slab.h>
+#include <linux/pgtable.h>
-#include <asm/pgtable.h>
#include <asm/io.h>
#include <asm/hwtest.h>
#include <asm/dma.h>
@@ -114,17 +114,6 @@ static inline void bit_reverse_addr(unsigned char addr[6])
addr[i] = bitrev8(addr[i]);
}
-static irqreturn_t macsonic_interrupt(int irq, void *dev_id)
-{
- irqreturn_t result;
- unsigned long flags;
-
- local_irq_save(flags);
- result = sonic_interrupt(irq, dev_id);
- local_irq_restore(flags);
- return result;
-}
-
static int macsonic_open(struct net_device* dev)
{
int retval;
@@ -135,12 +124,12 @@ static int macsonic_open(struct net_device* dev)
dev->name, dev->irq);
goto err;
}
- /* Under the A/UX interrupt scheme, the onboard SONIC interrupt comes
- * in at priority level 3. However, we sometimes get the level 2 inter-
- * rupt as well, which must prevent re-entrance of the sonic handler.
+ /* Under the A/UX interrupt scheme, the onboard SONIC interrupt gets
+ * moved from level 2 to level 3. Unfortunately we still get some
+ * level 2 interrupts so register the handler for both.
*/
if (dev->irq == IRQ_AUTO_3) {
- retval = request_irq(IRQ_NUBUS_9, macsonic_interrupt, 0,
+ retval = request_irq(IRQ_NUBUS_9, sonic_interrupt, 0,
"sonic", dev);
if (retval) {
printk(KERN_ERR "%s: unable to get IRQ %d.\n",
@@ -186,33 +175,10 @@ static const struct net_device_ops macsonic_netdev_ops = {
static int macsonic_init(struct net_device *dev)
{
struct sonic_local* lp = netdev_priv(dev);
+ int err = sonic_alloc_descriptors(dev);
- /* Allocate the entire chunk of memory for the descriptors.
- Note that this cannot cross a 64K boundary. */
- lp->descriptors = dma_alloc_coherent(lp->device,
- SIZEOF_SONIC_DESC *
- SONIC_BUS_SCALE(lp->dma_bitmode),
- &lp->descriptors_laddr,
- GFP_KERNEL);
- if (lp->descriptors == NULL)
- return -ENOMEM;
-
- /* Now set up the pointers to point to the appropriate places */
- lp->cda = lp->descriptors;
- lp->tda = lp->cda + (SIZEOF_SONIC_CDA
- * SONIC_BUS_SCALE(lp->dma_bitmode));
- lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
- * SONIC_BUS_SCALE(lp->dma_bitmode));
- lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
- * SONIC_BUS_SCALE(lp->dma_bitmode));
-
- lp->cda_laddr = lp->descriptors_laddr;
- lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA
- * SONIC_BUS_SCALE(lp->dma_bitmode));
- lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
- * SONIC_BUS_SCALE(lp->dma_bitmode));
- lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
- * SONIC_BUS_SCALE(lp->dma_bitmode));
+ if (err)
+ return err;
dev->netdev_ops = &macsonic_netdev_ops;
dev->watchdog_timeo = TX_TIMEOUT;
@@ -237,6 +203,7 @@ static void mac_onboard_sonic_ethernet_addr(struct net_device *dev)
struct sonic_local *lp = netdev_priv(dev);
const int prom_addr = ONBOARD_SONIC_PROM_BASE;
unsigned short val;
+ u8 addr[ETH_ALEN];
/*
* On NuBus boards we can sometimes look in the ROM resources.
@@ -247,7 +214,8 @@ static void mac_onboard_sonic_ethernet_addr(struct net_device *dev)
int i;
for (i = 0; i < 6; i++)
- dev->dev_addr[i] = SONIC_READ_PROM(i);
+ addr[i] = SONIC_READ_PROM(i);
+ eth_hw_addr_set(dev, addr);
if (!INVALID_MAC(dev->dev_addr))
return;
@@ -256,7 +224,8 @@ static void mac_onboard_sonic_ethernet_addr(struct net_device *dev)
* source has a rather long and detailed historical account of
* why this is so.
*/
- bit_reverse_addr(dev->dev_addr);
+ bit_reverse_addr(addr);
+ eth_hw_addr_set(dev, addr);
if (!INVALID_MAC(dev->dev_addr))
return;
@@ -277,14 +246,15 @@ static void mac_onboard_sonic_ethernet_addr(struct net_device *dev)
SONIC_WRITE(SONIC_CEP, 15);
val = SONIC_READ(SONIC_CAP2);
- dev->dev_addr[5] = val >> 8;
- dev->dev_addr[4] = val & 0xff;
+ addr[5] = val >> 8;
+ addr[4] = val & 0xff;
val = SONIC_READ(SONIC_CAP1);
- dev->dev_addr[3] = val >> 8;
- dev->dev_addr[2] = val & 0xff;
+ addr[3] = val >> 8;
+ addr[2] = val & 0xff;
val = SONIC_READ(SONIC_CAP0);
- dev->dev_addr[1] = val >> 8;
- dev->dev_addr[0] = val & 0xff;
+ addr[1] = val >> 8;
+ addr[0] = val & 0xff;
+ eth_hw_addr_set(dev, addr);
if (!INVALID_MAC(dev->dev_addr))
return;
@@ -389,13 +359,16 @@ static int mac_onboard_sonic_probe(struct net_device *dev)
static int mac_sonic_nubus_ethernet_addr(struct net_device *dev,
unsigned long prom_addr, int id)
{
+ u8 addr[ETH_ALEN];
int i;
+
for(i = 0; i < 6; i++)
- dev->dev_addr[i] = SONIC_READ_PROM(i);
+ addr[i] = SONIC_READ_PROM(i);
/* Some of the addresses are bit-reversed */
if (id != MACSONIC_DAYNA)
- bit_reverse_addr(dev->dev_addr);
+ bit_reverse_addr(addr);
+ eth_hw_addr_set(dev, addr);
return 0;
}
@@ -540,10 +513,14 @@ static int mac_sonic_platform_probe(struct platform_device *pdev)
err = register_netdev(dev);
if (err)
- goto out;
+ goto undo_probe;
return 0;
+undo_probe:
+ dma_free_coherent(lp->device,
+ SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
+ lp->descriptors, lp->descriptors_laddr);
out:
free_netdev(dev);
@@ -618,18 +595,22 @@ static int mac_sonic_nubus_probe(struct nubus_board *board)
err = register_netdev(ndev);
if (err)
- goto out;
+ goto undo_probe;
nubus_set_drvdata(board, ndev);
return 0;
+undo_probe:
+ dma_free_coherent(lp->device,
+ SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
+ lp->descriptors, lp->descriptors_laddr);
out:
free_netdev(ndev);
return err;
}
-static int mac_sonic_nubus_remove(struct nubus_board *board)
+static void mac_sonic_nubus_remove(struct nubus_board *board)
{
struct net_device *ndev = nubus_get_drvdata(board);
struct sonic_local *lp = netdev_priv(ndev);
@@ -639,8 +620,6 @@ static int mac_sonic_nubus_remove(struct nubus_board *board)
SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
lp->descriptors, lp->descriptors_laddr);
free_netdev(ndev);
-
- return 0;
}
static struct nubus_driver mac_sonic_nubus_driver = {
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.