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-rw-r--r--drivers/net/Space.c259
1 files changed, 259 insertions, 0 deletions
diff --git a/drivers/net/Space.c b/drivers/net/Space.c
new file mode 100644
index 000000000..83214e2e7
--- /dev/null
+++ b/drivers/net/Space.c
@@ -0,0 +1,259 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * INET An implementation of the TCP/IP protocol suite for the LINUX
+ * operating system. INET is implemented using the BSD Socket
+ * interface as the means of communication with the user level.
+ *
+ * Holds initial configuration information for devices.
+ *
+ * Version: @(#)Space.c 1.0.7 08/12/93
+ *
+ * Authors: Ross Biro
+ * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
+ * Donald J. Becker, <becker@scyld.com>
+ *
+ * Changelog:
+ * Stephen Hemminger (09/2003)
+ * - get rid of pre-linked dev list, dynamic device allocation
+ * Paul Gortmaker (03/2002)
+ * - struct init cleanup, enable multiple ISA autoprobes.
+ * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 09/1999
+ * - fix sbni: s/device/net_device/
+ * Paul Gortmaker (06/98):
+ * - sort probes in a sane way, make sure all (safe) probes
+ * get run once & failed autoprobes don't autoprobe again.
+ */
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/netlink.h>
+#include <net/Space.h>
+
+/*
+ * This structure holds boot-time configured netdevice settings. They
+ * are then used in the device probing.
+ */
+struct netdev_boot_setup {
+ char name[IFNAMSIZ];
+ struct ifmap map;
+};
+#define NETDEV_BOOT_SETUP_MAX 8
+
+
+/******************************************************************************
+ *
+ * Device Boot-time Settings Routines
+ *
+ ******************************************************************************/
+
+/* Boot time configuration table */
+static struct netdev_boot_setup dev_boot_setup[NETDEV_BOOT_SETUP_MAX];
+
+/**
+ * netdev_boot_setup_add - add new setup entry
+ * @name: name of the device
+ * @map: configured settings for the device
+ *
+ * Adds new setup entry to the dev_boot_setup list. The function
+ * returns 0 on error and 1 on success. This is a generic routine to
+ * all netdevices.
+ */
+static int netdev_boot_setup_add(char *name, struct ifmap *map)
+{
+ struct netdev_boot_setup *s;
+ int i;
+
+ s = dev_boot_setup;
+ for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++) {
+ if (s[i].name[0] == '\0' || s[i].name[0] == ' ') {
+ memset(s[i].name, 0, sizeof(s[i].name));
+ strscpy(s[i].name, name, IFNAMSIZ);
+ memcpy(&s[i].map, map, sizeof(s[i].map));
+ break;
+ }
+ }
+
+ return i >= NETDEV_BOOT_SETUP_MAX ? 0 : 1;
+}
+
+/**
+ * netdev_boot_setup_check - check boot time settings
+ * @dev: the netdevice
+ *
+ * Check boot time settings for the device.
+ * The found settings are set for the device to be used
+ * later in the device probing.
+ * Returns 0 if no settings found, 1 if they are.
+ */
+int netdev_boot_setup_check(struct net_device *dev)
+{
+ struct netdev_boot_setup *s = dev_boot_setup;
+ int i;
+
+ for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++) {
+ if (s[i].name[0] != '\0' && s[i].name[0] != ' ' &&
+ !strcmp(dev->name, s[i].name)) {
+ dev->irq = s[i].map.irq;
+ dev->base_addr = s[i].map.base_addr;
+ dev->mem_start = s[i].map.mem_start;
+ dev->mem_end = s[i].map.mem_end;
+ return 1;
+ }
+ }
+ return 0;
+}
+EXPORT_SYMBOL(netdev_boot_setup_check);
+
+/**
+ * netdev_boot_base - get address from boot time settings
+ * @prefix: prefix for network device
+ * @unit: id for network device
+ *
+ * Check boot time settings for the base address of device.
+ * The found settings are set for the device to be used
+ * later in the device probing.
+ * Returns 0 if no settings found.
+ */
+static unsigned long netdev_boot_base(const char *prefix, int unit)
+{
+ const struct netdev_boot_setup *s = dev_boot_setup;
+ char name[IFNAMSIZ];
+ int i;
+
+ sprintf(name, "%s%d", prefix, unit);
+
+ /*
+ * If device already registered then return base of 1
+ * to indicate not to probe for this interface
+ */
+ if (__dev_get_by_name(&init_net, name))
+ return 1;
+
+ for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++)
+ if (!strcmp(name, s[i].name))
+ return s[i].map.base_addr;
+ return 0;
+}
+
+/*
+ * Saves at boot time configured settings for any netdevice.
+ */
+static int __init netdev_boot_setup(char *str)
+{
+ int ints[5];
+ struct ifmap map;
+
+ str = get_options(str, ARRAY_SIZE(ints), ints);
+ if (!str || !*str)
+ return 0;
+
+ /* Save settings */
+ memset(&map, 0, sizeof(map));
+ if (ints[0] > 0)
+ map.irq = ints[1];
+ if (ints[0] > 1)
+ map.base_addr = ints[2];
+ if (ints[0] > 2)
+ map.mem_start = ints[3];
+ if (ints[0] > 3)
+ map.mem_end = ints[4];
+
+ /* Add new entry to the list */
+ return netdev_boot_setup_add(str, &map);
+}
+
+__setup("netdev=", netdev_boot_setup);
+
+static int __init ether_boot_setup(char *str)
+{
+ return netdev_boot_setup(str);
+}
+__setup("ether=", ether_boot_setup);
+
+
+/* A unified ethernet device probe. This is the easiest way to have every
+ * ethernet adaptor have the name "eth[0123...]".
+ */
+
+struct devprobe2 {
+ struct net_device *(*probe)(int unit);
+ int status; /* non-zero if autoprobe has failed */
+};
+
+static int __init probe_list2(int unit, struct devprobe2 *p, int autoprobe)
+{
+ struct net_device *dev;
+
+ for (; p->probe; p++) {
+ if (autoprobe && p->status)
+ continue;
+ dev = p->probe(unit);
+ if (!IS_ERR(dev))
+ return 0;
+ if (autoprobe)
+ p->status = PTR_ERR(dev);
+ }
+ return -ENODEV;
+}
+
+/* ISA probes that touch addresses < 0x400 (including those that also
+ * look for EISA/PCI cards in addition to ISA cards).
+ */
+static struct devprobe2 isa_probes[] __initdata = {
+#ifdef CONFIG_3C515
+ {tc515_probe, 0},
+#endif
+#ifdef CONFIG_ULTRA
+ {ultra_probe, 0},
+#endif
+#ifdef CONFIG_WD80x3
+ {wd_probe, 0},
+#endif
+#if defined(CONFIG_NE2000) /* ISA (use ne2k-pci for PCI cards) */
+ {ne_probe, 0},
+#endif
+#ifdef CONFIG_LANCE /* ISA/VLB (use pcnet32 for PCI cards) */
+ {lance_probe, 0},
+#endif
+#ifdef CONFIG_SMC9194
+ {smc_init, 0},
+#endif
+#ifdef CONFIG_CS89x0_ISA
+ {cs89x0_probe, 0},
+#endif
+ {NULL, 0},
+};
+
+/* Unified ethernet device probe, segmented per architecture and
+ * per bus interface. This drives the legacy devices only for now.
+ */
+
+static void __init ethif_probe2(int unit)
+{
+ unsigned long base_addr = netdev_boot_base("eth", unit);
+
+ if (base_addr == 1)
+ return;
+
+ probe_list2(unit, isa_probes, base_addr == 0);
+}
+
+/* Statically configured drivers -- order matters here. */
+static int __init net_olddevs_init(void)
+{
+ int num;
+
+ for (num = 0; num < 8; ++num)
+ ethif_probe2(num);
+
+#ifdef CONFIG_COPS
+ cops_probe(0);
+ cops_probe(1);
+ cops_probe(2);
+#endif
+
+ return 0;
+}
+
+device_initcall(net_olddevs_init);
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