[PATCH 2/2] netdrvr/ibmlana: move away from legacy MCA API

Jeff Garzik
2007-10-29T19:34:07Z

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---
drivers/net/ibmlana.c | 119 +++++++++++++++++++++----------------------------
1 files changed, 51 insertions(+), 68 deletions(-)

diff --git a/drivers/net/ibmlana.c b/drivers/net/ibmlana.c
index 006d0d7..188c0a9 100644
--- a/drivers/net/ibmlana.c
+++ b/drivers/net/ibmlana.c
@@ -83,7 +83,7 @@ History:
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/time.h>
-#include <linux/mca-legacy.h>
+#include <linux/mca.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
@@ -161,13 +161,13 @@ static void PrTime(void)

/* deduce resources out of POS registers */

-static void getaddrs(int slot, int *base, int *memlen, int *iobase,
- int *irq, ibmlana_medium * medium)
+static void getaddrs(struct mca_device *mdev, int *base, int *memlen,
+ int *iobase, int *irq, ibmlana_medium *medium)
{
u_char pos0, pos1;

- pos0 = mca_read_stored_pos(slot, 2);
- pos1 = mca_read_stored_pos(slot, 3);
+ pos0 = mca_device_read_stored_pos(mdev, 2);
+ pos1 = mca_device_read_stored_pos(mdev, 3);

*base = 0xc0000 + ((pos1 & 0xf0) << 9);
*memlen = (pos1 & 0x01) ? 0x8000 : 0x4000;
@@ -744,6 +744,7 @@ static irqreturn_t irq_handler(int irq, void *device)

/* MCA info */

+#if 0 /* info available elsewhere, but this is kept for reference */
static int ibmlana_getinfo(char *buf, int slot, void *d)
{
int len = 0, i;
@@ -771,6 +772,7 @@ static int ibmlana_getinfo(char *buf, int slot, void *d)

return len;
}
+#endif

/* open driver. Means also initialization and start of LANCE */

@@ -894,19 +896,26 @@ static int ibmlana_irq;
static int ibmlana_io;
static int startslot; /* counts through slots when probing multiple devices */

-static int ibmlana_probe(struct net_device **dev_out)
+static short ibmlana_adapter_ids[] __initdata = {
+ IBM_LANA_ID,
+ 0x0000
+};
+
+static char *ibmlana_adapter_names[] __initdata = {
+ "IBM LAN Adapter/A",
+ NULL
+};
+
+static int ibmlana_init_one(struct device *kdev)
{
+ struct mca_device *mdev = to_mca_device(kdev);
struct net_device *dev;
- int slot, z, rc;
+ int slot = mdev->slot, z, rc;
int base = 0, irq = 0, iobase = 0, memlen = 0;
ibmlana_priv *priv;
ibmlana_medium medium;
DECLARE_MAC_BUF(mac);

- /* can't work without an MCA bus ;-) */
- if (MCA_bus == 0)
- return -ENODEV;
-
dev = alloc_etherdev(sizeof(ibmlana_priv));
if (!dev)
return -ENOMEM;
@@ -917,25 +926,16 @@ static int ibmlana_probe(struct net_device **dev_out)
base = dev->mem_start;
irq = dev->irq;

- for (slot = startslot; (slot = mca_find_adapter(IBM_LANA_ID, slot)) != -1; slot++) {
- /* deduce card addresses */
- getaddrs(slot, &base, &memlen, &iobase, &irq, &medium);
-
- /* slot already in use ? */
- if (mca_is_adapter_used(slot))
- continue;
- /* were we looking for something different ? */
- if (dev->irq && dev->irq != irq)
- continue;
- if (dev->mem_start && dev->mem_start != base)
- continue;
- /* found something that matches */
- break;
- }
+ /* deduce card addresses */
+ getaddrs(mdev, &base, &memlen, &iobase, &irq, &medium);

- /* nothing found ? */
- if (slot == -1) {
- rc = (base != 0 || irq != 0) ? -ENXIO : -ENODEV;
+ /* were we looking for something different ? */
+ if (dev->irq && dev->irq != irq) {
+ rc = -ENODEV;
+ goto err_out;
+ }
+ if (dev->mem_start && dev->mem_start != base) {
+ rc = -ENODEV;
goto err_out;
}

@@ -952,11 +952,10 @@ static int ibmlana_probe(struct net_device **dev_out)

priv = netdev_priv(dev);
priv->slot = slot;
- priv->realirq = irq;
+ priv->realirq = mca_device_transform_irq(mdev, irq);
priv->medium = medium;
spin_lock_init(&priv->lock);

-
/* set base + irq for this device (irq not allocated so far) */

dev->irq = 0;
@@ -972,18 +971,14 @@ static int ibmlana_probe(struct net_device **dev_out)
goto err_out_reg;
}

- /* make procfs entries */
- mca_set_adapter_name(slot, "IBM LAN Adapter/A");
- mca_set_adapter_procfn(slot, (MCA_ProcFn) ibmlana_getinfo, dev);
-
- mca_mark_as_used(slot);
+ mca_device_set_name(mdev, ibmlana_adapter_names[mdev->index]);
+ mca_device_set_claim(mdev, 1);

/* set methods */

dev->open = ibmlana_open;
dev->stop = ibmlana_close;
dev->hard_start_xmit = ibmlana_tx;
- dev->do_ioctl = NULL;
dev->set_multicast_list = ibmlana_set_multicast_list;
dev->flags |= IFF_MULTICAST;

@@ -1013,13 +1008,11 @@ static int ibmlana_probe(struct net_device **dev_out)
if (rc)
goto err_out_claimed;

- *dev_out = dev;
+ dev_set_drvdata(kdev, dev);
return 0;

err_out_claimed:
- mca_mark_as_unused(priv->slot);
- mca_set_adapter_name(priv->slot, "");
- mca_set_adapter_procfn(priv->slot, NULL, NULL);
+ mca_device_set_claim(mdev, 0);
iounmap(priv->base);
err_out_reg:
release_region(iobase, IBM_LANA_IORANGE);
@@ -1028,59 +1021,49 @@ err_out:
return rc;
}

-static void ibmlana_remove_one(struct net_device *_dev)
+static int ibmlana_remove_one(struct device *kdev)
{
- struct net_device *dev = _dev;
+ struct mca_device *mdev = to_mca_device(kdev);
+ struct net_device *dev = dev_get_drvdata(kdev);
ibmlana_priv *priv = netdev_priv(dev);

unregister_netdev(dev);
/*DeinitBoard(dev); */
release_region(dev->base_addr, IBM_LANA_IORANGE);
- mca_mark_as_unused(priv->slot);
- mca_set_adapter_name(priv->slot, "");
- mca_set_adapter_procfn(priv->slot, NULL, NULL);
+ mca_device_set_claim(mdev, 0);
iounmap(priv->base);
free_netdev(dev);
+ return 0;
}

/* ------------------------------------------------------------------------
* modularization support
* ------------------------------------------------------------------------ */

-#define DEVMAX 5
-
-static struct net_device *moddevs[DEVMAX];
-
module_param_named(irq, ibmlana_irq, int, 0);
module_param_named(io, ibmlana_io, int, 0);
MODULE_PARM_DESC(irq, "IBM LAN/A IRQ number");
MODULE_PARM_DESC(io, "IBM LAN/A I/O base address");
MODULE_LICENSE("GPL");

+static struct mca_driver ibmlana_driver = {
+ .id_table = ibmlana_adapter_ids,
+ .driver = {
+ .name = "ibmlana",
+ .bus = &mca_bus_type,
+ .probe = ibmlana_init_one,
+ .remove = ibmlana_remove_one,
+ },
+};
+
static int __init ibmlana_init_module(void)
{
- int z;
-
- startslot = 0;
- for (z = 0; z < DEVMAX; z++) {
- struct net_device *dev = NULL;
-
- if (ibmlana_probe(&dev))
- break;
-
- moddevs[z] = dev;
- }
- return (z > 0) ? 0 : -EIO;
+ return mca_register_driver(&ibmlana_driver);
}

static void __exit ibmlana_cleanup_module(void)
{
- int z;
- for (z = 0; z < DEVMAX; z++) {
- struct net_device *dev = moddevs[z];
- if (dev)
- ibmlana_remove_one(dev);
- }
+ mca_unregister_driver(&ibmlana_driver);
}

module_init(ibmlana_init_module);
--
1.5.2.4