[NET] sunhme: Convert to new SBUS driver framework.

And make it a real PCI driver too.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 187 insertions, 173 deletions

diff --git a/drivers/net/sunhme.c b/drivers/net/sunhme.c
index 9f4367e2aa0d..ec51f397e1ed 100644
--- a/drivers/net/sunhme.c
+++ b/drivers/net/sunhme.c
@@ -1,9 +1,9 @@
-/* $Id: sunhme.c,v 1.124 2002/01/15 06:25:51 davem Exp $
- * sunhme.c: Sparc HME/BigMac 10/100baseT half/full duplex auto switching,
+/* sunhme.c: Sparc HME/BigMac 10/100baseT half/full duplex auto switching,
  *           auto carrier detecting ethernet driver.  Also known as the
  *           "Happy Meal Ethernet" found on SunSwift SBUS cards.
  *
- * Copyright (C) 1996, 1998, 1999, 2002, 2003 David S. Miller (davem@redhat.com)
+ * Copyright (C) 1996, 1998, 1999, 2002, 2003,
+                 2006 David S. Miller (davem@davemloft.net)
  *
  * Changes :
  * 2000/11/11 Willy Tarreau <willy AT meta-x.org>
@@ -47,9 +47,6 @@
 #include <asm/oplib.h>
 #include <asm/prom.h>
 #include <asm/auxio.h>
-#ifndef CONFIG_SPARC64
-#include <asm/io-unit.h>
-#endif
 #endif
 #include <asm/uaccess.h>
 
@@ -66,9 +63,9 @@
 #include "sunhme.h"
 
 #define DRV_NAME        "sunhme"
-#define DRV_VERSION     "2.02"
-#define DRV_RELDATE     "8/24/03"
-#define DRV_AUTHOR      "David S. Miller (davem@redhat.com)"
+#define DRV_VERSION     "3.00"
+#define DRV_RELDATE     "June 23, 2006"
+#define DRV_AUTHOR      "David S. Miller (davem@davemloft.net)"
 
 static char version[] =
         DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " " DRV_AUTHOR "\n";
@@ -84,8 +81,6 @@ static int macaddr[6];
 module_param_array(macaddr, int, NULL, 0);
 MODULE_PARM_DESC(macaddr, "Happy Meal MAC address to set");
 
-static struct happy_meal *root_happy_dev;
-
 #ifdef CONFIG_SBUS
 static struct quattro *qfe_sbus_list;
 #endif
@@ -182,26 +177,6 @@ static __inline__ void tx_dump_ring(struct happy_meal *hp)
 #define DEFAULT_IPG2       4 /* For all modes */
 #define DEFAULT_JAMSIZE    4 /* Toe jam */
 
-#if defined(CONFIG_PCI) && defined(MODULE)
-/* This happy_pci_ids is declared __initdata because it is only used
-   as an advisory to depmod.  If this is ported to the new PCI interface
-   where it could be referenced at any time due to hot plugging,
-   the __initdata reference should be removed. */
-
-static struct pci_device_id happymeal_pci_ids[] = {
-        {
-          .vendor       = PCI_VENDOR_ID_SUN,
-          .device       = PCI_DEVICE_ID_SUN_HAPPYMEAL,
-          .subvendor    = PCI_ANY_ID,
-          .subdevice    = PCI_ANY_ID,
-        },
-        { }                     /* Terminating entry */
-};
-
-MODULE_DEVICE_TABLE(pci, happymeal_pci_ids);
-
-#endif
-
 /* NOTE: In the descriptor writes one _must_ write the address
  *       member _first_.  The card must not be allowed to see
  *       the updated descriptor flags until the address is
@@ -2656,6 +2631,17 @@ static void __init quattro_sbus_register_irqs(void)
                 }
         }
 }
+
+static void __devexit quattro_sbus_free_irqs(void)
+{
+        struct quattro *qp;
+
+        for (qp = qfe_sbus_list; qp != NULL; qp = qp->next) {
+                struct sbus_dev *sdev = qp->quattro_dev;
+
+                free_irq(sdev->irqs[0], qp);
+        }
+}
 #endif /* CONFIG_SBUS */
 
 #ifdef CONFIG_PCI
@@ -2690,8 +2676,9 @@ static struct quattro * __init quattro_pci_find(struct pci_dev *pdev)
 #endif /* CONFIG_PCI */
 
 #ifdef CONFIG_SBUS
-static int __init happy_meal_sbus_init(struct sbus_dev *sdev, int is_qfe)
+static int __init happy_meal_sbus_probe_one(struct sbus_dev *sdev, int is_qfe)
 {
+        struct device_node *dp = sdev->ofdev.node;
         struct quattro *qp = NULL;
         struct happy_meal *hp;
         struct net_device *dev;
@@ -2714,6 +2701,7 @@ static int __init happy_meal_sbus_init(struct sbus_dev *sdev, int is_qfe)
         if (!dev)
                 goto err_out;
         SET_MODULE_OWNER(dev);
+        SET_NETDEV_DEV(dev, &sdev->ofdev.dev);
 
         if (hme_version_printed++ == 0)
                 printk(KERN_INFO "%s", version);
@@ -2729,13 +2717,16 @@ static int __init happy_meal_sbus_init(struct sbus_dev *sdev, int is_qfe)
                 for (i = 0; i < 6; i++)
                         dev->dev_addr[i] = macaddr[i];
                 macaddr[5]++;
-        } else if (qfe_slot != -1 &&
-                   prom_getproplen(sdev->prom_node,
-                                   "local-mac-address") == 6) {
-                prom_getproperty(sdev->prom_node, "local-mac-address",
-                                 dev->dev_addr, 6);
         } else {
-                memcpy(dev->dev_addr, idprom->id_ethaddr, 6);
+                unsigned char *addr;
+                int len;
+
+                addr = of_get_property(dp, "local-mac-address", &len);
+
+                if (qfe_slot != -1 && addr && len == 6)
+                        memcpy(dev->dev_addr, addr, 6);
+                else
+                        memcpy(dev->dev_addr, idprom->id_ethaddr, 6);
         }
 
         hp = dev->priv;
@@ -2746,9 +2737,8 @@ static int __init happy_meal_sbus_init(struct sbus_dev *sdev, int is_qfe)
 
         err = -ENODEV;
         if (sdev->num_registers != 5) {
-                printk(KERN_ERR "happymeal: Device does not have 5 regs, it has %d.\n",
+                printk(KERN_ERR "happymeal: Device needs 5 regs, has %d.\n",
                        sdev->num_registers);
-                printk(KERN_ERR "happymeal: Would you like that for here or to go?\n");
                 goto err_out_free_netdev;
         }
 
@@ -2762,39 +2752,39 @@ static int __init happy_meal_sbus_init(struct sbus_dev *sdev, int is_qfe)
         hp->gregs = sbus_ioremap(&sdev->resource[0], 0,
                                  GREG_REG_SIZE, "HME Global Regs");
         if (!hp->gregs) {
-                printk(KERN_ERR "happymeal: Cannot map Happy Meal global registers.\n");
+                printk(KERN_ERR "happymeal: Cannot map global registers.\n");
                 goto err_out_free_netdev;
         }
 
         hp->etxregs = sbus_ioremap(&sdev->resource[1], 0,
                                    ETX_REG_SIZE, "HME TX Regs");
         if (!hp->etxregs) {
-                printk(KERN_ERR "happymeal: Cannot map Happy Meal MAC Transmit registers.\n");
+                printk(KERN_ERR "happymeal: Cannot map MAC TX registers.\n");
                 goto err_out_iounmap;
         }
 
         hp->erxregs = sbus_ioremap(&sdev->resource[2], 0,
                                    ERX_REG_SIZE, "HME RX Regs");
         if (!hp->erxregs) {
-                printk(KERN_ERR "happymeal: Cannot map Happy Meal MAC Receive registers.\n");
+                printk(KERN_ERR "happymeal: Cannot map MAC RX registers.\n");
                 goto err_out_iounmap;
         }
 
         hp->bigmacregs = sbus_ioremap(&sdev->resource[3], 0,
                                       BMAC_REG_SIZE, "HME BIGMAC Regs");
         if (!hp->bigmacregs) {
-                printk(KERN_ERR "happymeal: Cannot map Happy Meal BIGMAC registers.\n");
+                printk(KERN_ERR "happymeal: Cannot map BIGMAC registers.\n");
                 goto err_out_iounmap;
         }
 
         hp->tcvregs = sbus_ioremap(&sdev->resource[4], 0,
                                    TCVR_REG_SIZE, "HME Tranceiver Regs");
         if (!hp->tcvregs) {
-                printk(KERN_ERR "happymeal: Cannot map Happy Meal Tranceiver registers.\n");
+                printk(KERN_ERR "happymeal: Cannot map TCVR registers.\n");
                 goto err_out_iounmap;
         }
 
-        hp->hm_revision = prom_getintdefault(sdev->prom_node, "hm-rev", 0xff);
+        hp->hm_revision = of_getintprop_default(dp, "hm-rev", 0xff);
         if (hp->hm_revision == 0xff)
                 hp->hm_revision = 0xa0;
 
@@ -2808,8 +2798,8 @@ static int __init happy_meal_sbus_init(struct sbus_dev *sdev, int is_qfe)
                 hp->happy_flags |= HFLAG_QUATTRO;
 
         /* Get the supported DVMA burst sizes from our Happy SBUS. */
-        hp->happy_bursts = prom_getintdefault(sdev->bus->prom_node,
-                                              "burst-sizes", 0x00);
+        hp->happy_bursts = of_getintprop_default(sdev->bus->ofdev.node,
+                                                 "burst-sizes", 0x00);
 
         hp->happy_block = sbus_alloc_consistent(hp->happy_dev,
                                                 PAGE_SIZE,
@@ -2872,6 +2862,8 @@ static int __init happy_meal_sbus_init(struct sbus_dev *sdev, int is_qfe)
                 goto err_out_free_consistent;
         }
 
+        dev_set_drvdata(&sdev->ofdev.dev, hp);
+
         if (qfe_slot != -1)
                 printk(KERN_INFO "%s: Quattro HME slot %d (SBUS) 10/100baseT Ethernet ",
                        dev->name, qfe_slot);
@@ -2884,12 +2876,6 @@ static int __init happy_meal_sbus_init(struct sbus_dev *sdev, int is_qfe)
                        dev->dev_addr[i], i == 5 ? ' ' : ':');
         printk("\n");
 
-        /* We are home free at this point, link us in to the happy
-         * device list.
-         */
-        hp->next_module = root_happy_dev;
-        root_happy_dev = hp;
-
         return 0;
 
 err_out_free_consistent:
@@ -3009,7 +2995,8 @@ static void get_hme_mac_nonsparc(struct pci_dev *pdev, unsigned char *dev_addr)
 }
 #endif /* !(CONFIG_SPARC) */
 
-static int __init happy_meal_pci_init(struct pci_dev *pdev)
+static int __devinit happy_meal_pci_probe(struct pci_dev *pdev,
+                                          const struct pci_device_id *ent)
 {
         struct quattro *qp = NULL;
 #ifdef CONFIG_SPARC
@@ -3214,6 +3201,8 @@ static int __init happy_meal_pci_init(struct pci_dev *pdev)
                 goto err_out_iounmap;
         }
 
+        dev_set_drvdata(&pdev->dev, hp);
+
         if (!qfe_slot) {
                 struct pci_dev *qpdev = qp->quattro_dev;
 
@@ -3243,12 +3232,6 @@ static int __init happy_meal_pci_init(struct pci_dev *pdev)
 
         printk("\n");
 
-        /* We are home free at this point, link us in to the happy
-         * device list.
-         */
-        hp->next_module = root_happy_dev;
-        root_happy_dev = hp;
-
         return 0;
 
 err_out_iounmap:
@@ -3266,136 +3249,146 @@ err_out_clear_quattro:
 err_out:
         return err;
 }
-#endif
 
-#ifdef CONFIG_SBUS
-static int __init happy_meal_sbus_probe(void)
+static void __devexit happy_meal_pci_remove(struct pci_dev *pdev)
 {
-        struct sbus_bus *sbus;
-        struct sbus_dev *sdev;
-        int cards = 0;
-        char model[128];
+        struct happy_meal *hp = dev_get_drvdata(&pdev->dev);
+        struct net_device *net_dev = hp->dev;
 
-        for_each_sbus(sbus) {
-                for_each_sbusdev(sdev, sbus) {
-                        char *name = sdev->prom_name;
-
-                        if (!strcmp(name, "SUNW,hme")) {
-                                cards++;
-                                prom_getstring(sdev->prom_node, "model",
-                                               model, sizeof(model));
-                                if (!strcmp(model, "SUNW,sbus-qfe"))
-                                        happy_meal_sbus_init(sdev, 1);
-                                else
-                                        happy_meal_sbus_init(sdev, 0);
-                        } else if (!strcmp(name, "qfe") ||
-                                   !strcmp(name, "SUNW,qfe")) {
-                                cards++;
-                                happy_meal_sbus_init(sdev, 1);
-                        }
-                }
-        }
-        if (cards != 0)
-                quattro_sbus_register_irqs();
-        return cards;
+        unregister_netdev(net_dev);
+
+        pci_free_consistent(hp->happy_dev,
+                            PAGE_SIZE,
+                            hp->happy_block,
+                            hp->hblock_dvma);
+        iounmap(hp->gregs);
+        pci_release_regions(hp->happy_dev);
+
+        free_netdev(net_dev);
+
+        dev_set_drvdata(&pdev->dev, NULL);
 }
-#endif
 
-#ifdef CONFIG_PCI
-static int __init happy_meal_pci_probe(void)
+static struct pci_device_id happymeal_pci_ids[] = {
+        {
+          .vendor       = PCI_VENDOR_ID_SUN,
+          .device       = PCI_DEVICE_ID_SUN_HAPPYMEAL,
+          .subvendor    = PCI_ANY_ID,
+          .subdevice    = PCI_ANY_ID,
+        },
+        { }                     /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(pci, happymeal_pci_ids);
+
+static struct pci_driver hme_pci_driver = {
+        .name           = "hme",
+        .id_table       = happymeal_pci_ids,
+        .probe          = happy_meal_pci_probe,
+        .remove         = __devexit_p(happy_meal_pci_remove),
+};
+
+static int __init happy_meal_pci_init(void)
 {
-        struct pci_dev *pdev = NULL;
-        int cards = 0;
+        return pci_module_init(&hme_pci_driver);
+}
 
-        while ((pdev = pci_find_device(PCI_VENDOR_ID_SUN,
-                                       PCI_DEVICE_ID_SUN_HAPPYMEAL, pdev)) != NULL) {
-                if (pci_enable_device(pdev))
-                        continue;
-                pci_set_master(pdev);
-                cards++;
-                happy_meal_pci_init(pdev);
+static void happy_meal_pci_exit(void)
+{
+        pci_unregister_driver(&hme_pci_driver);
+
+        while (qfe_pci_list) {
+                struct quattro *qfe = qfe_pci_list;
+                struct quattro *next = qfe->next;
+
+                kfree(qfe);
+
+                qfe_pci_list = next;
         }
-        return cards;
 }
+
 #endif
 
-static int __init happy_meal_probe(void)
+#ifdef CONFIG_SBUS
+static int __devinit hme_sbus_probe(struct of_device *dev, const struct of_device_id *match)
 {
-        static int called = 0;
-        int cards;
+        struct sbus_dev *sdev = to_sbus_device(&dev->dev);
+        struct device_node *dp = dev->node;
+        char *model = of_get_property(dp, "model", NULL);
+        int is_qfe = (match->data != NULL);
 
-        root_happy_dev = NULL;
+        if (!is_qfe && model && !strcmp(model, "SUNW,sbus-qfe"))
+                is_qfe = 1;
 
-        if (called)
-                return -ENODEV;
-        called++;
+        return happy_meal_sbus_probe_one(sdev, is_qfe);
+}
+
+static int __devexit hme_sbus_remove(struct of_device *dev)
+{
+        struct happy_meal *hp = dev_get_drvdata(&dev->dev);
+        struct net_device *net_dev = hp->dev;
+
+        unregister_netdevice(net_dev);
+
+        /* XXX qfe parent interrupt... */
+
+        sbus_iounmap(hp->gregs, GREG_REG_SIZE);
+        sbus_iounmap(hp->etxregs, ETX_REG_SIZE);
+        sbus_iounmap(hp->erxregs, ERX_REG_SIZE);
+        sbus_iounmap(hp->bigmacregs, BMAC_REG_SIZE);
+        sbus_iounmap(hp->tcvregs, TCVR_REG_SIZE);
+        sbus_free_consistent(hp->happy_dev,
+                             PAGE_SIZE,
+                             hp->happy_block,
+                             hp->hblock_dvma);
+
+        free_netdev(net_dev);
+
+        dev_set_drvdata(&dev->dev, NULL);
 
-        cards = 0;
-#ifdef CONFIG_SBUS
-        cards += happy_meal_sbus_probe();
-#endif
-#ifdef CONFIG_PCI
-        cards += happy_meal_pci_probe();
-#endif
-        if (!cards)
-                return -ENODEV;
         return 0;
 }
 
+static struct of_device_id hme_sbus_match[] = {
+        {
+                .name = "SUNW,hme",
+        },
+        {
+                .name = "SUNW,qfe",
+                .data = (void *) 1,
+        },
+        {
+                .name = "qfe",
+                .data = (void *) 1,
+        },
+        {},
+};
 
-static void __exit happy_meal_cleanup_module(void)
-{
-#ifdef CONFIG_SBUS
-        struct quattro *last_seen_qfe = NULL;
-#endif
+MODULE_DEVICE_TABLE(of, hme_sbus_match);
 
-        while (root_happy_dev) {
-                struct happy_meal *hp = root_happy_dev;
-                struct happy_meal *next = root_happy_dev->next_module;
-                struct net_device *dev = hp->dev;
+static struct of_platform_driver hme_sbus_driver = {
+        .name           = "hme",
+        .match_table    = hme_sbus_match,
+        .probe          = hme_sbus_probe,
+        .remove         = __devexit_p(hme_sbus_remove),
+};
 
-                /* Unregister netdev before unmapping registers as this
-                 * call can end up trying to access those registers.
-                 */
-                unregister_netdev(dev);
+static int __init happy_meal_sbus_init(void)
+{
+        int err;
 
-#ifdef CONFIG_SBUS
-                if (!(hp->happy_flags & HFLAG_PCI)) {
-                        if (hp->happy_flags & HFLAG_QUATTRO) {
-                                if (hp->qfe_parent != last_seen_qfe) {
-                                        free_irq(dev->irq, hp->qfe_parent);
-                                        last_seen_qfe = hp->qfe_parent;
-                                }
-                        }
+        err = of_register_driver(&hme_sbus_driver, &sbus_bus_type);
+        if (!err)
+                quattro_sbus_register_irqs();
 
-                        sbus_iounmap(hp->gregs, GREG_REG_SIZE);
-                        sbus_iounmap(hp->etxregs, ETX_REG_SIZE);
-                        sbus_iounmap(hp->erxregs, ERX_REG_SIZE);
-                        sbus_iounmap(hp->bigmacregs, BMAC_REG_SIZE);
-                        sbus_iounmap(hp->tcvregs, TCVR_REG_SIZE);
-                        sbus_free_consistent(hp->happy_dev,
-                                             PAGE_SIZE,
-                                             hp->happy_block,
-                                             hp->hblock_dvma);
-                }
-#endif
-#ifdef CONFIG_PCI
-                if ((hp->happy_flags & HFLAG_PCI)) {
-                        pci_free_consistent(hp->happy_dev,
-                                            PAGE_SIZE,
-                                            hp->happy_block,
-                                            hp->hblock_dvma);
-                        iounmap(hp->gregs);
-                        pci_release_regions(hp->happy_dev);
-                }
-#endif
-                free_netdev(dev);
+        return err;
+}
 
-                root_happy_dev = next;
-        }
+static void happy_meal_sbus_exit(void)
+{
+        of_unregister_driver(&hme_sbus_driver);
+        quattro_sbus_free_irqs();
 
-        /* Now cleanup the quattro lists. */
-#ifdef CONFIG_SBUS
         while (qfe_sbus_list) {
                 struct quattro *qfe = qfe_sbus_list;
                 struct quattro *next = qfe->next;
@@ -3404,18 +3397,39 @@ static void __exit happy_meal_cleanup_module(void)
 
                 qfe_sbus_list = next;
         }
+}
 #endif
-#ifdef CONFIG_PCI
-        while (qfe_pci_list) {
-                struct quattro *qfe = qfe_pci_list;
-                struct quattro *next = qfe->next;
 
-                kfree(qfe);
+static int __init happy_meal_probe(void)
+{
+        int err = 0;
 
-                qfe_pci_list = next;
+#ifdef CONFIG_SBUS
+        err = happy_meal_sbus_init();
+#endif
+#ifdef CONFIG_PCI
+        if (!err) {
+                err = happy_meal_pci_init();
+#ifdef CONFIG_SBUS
+                if (err)
+                        happy_meal_sbus_exit();
+#endif
         }
 #endif
+
+        return err;
+}
+
+
+static void __exit happy_meal_exit(void)
+{
+#ifdef CONFIG_SBUS
+        happy_meal_sbus_exit();
+#endif
+#ifdef CONFIG_PCI
+        happy_meal_pci_exit();
+#endif
 }
 
 module_init(happy_meal_probe);
-module_exit(happy_meal_cleanup_module);
+module_exit(happy_meal_exit);