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Diffstat (limited to 'linux/src/drivers/net/kern_compat.h')
| -rw-r--r-- | linux/src/drivers/net/kern_compat.h | 285 |
1 files changed, 285 insertions, 0 deletions
diff --git a/linux/src/drivers/net/kern_compat.h b/linux/src/drivers/net/kern_compat.h new file mode 100644 index 0000000..75c34b0 --- /dev/null +++ b/linux/src/drivers/net/kern_compat.h @@ -0,0 +1,285 @@ +#ifndef _KERN_COMPAT_H +#define _KERN_COMPAT_H +/* kern_compat.h: Linux PCI network adapter backward compatibility code. */ +/* + $Revision: 1.1.2.1 $ $Date: 2006/01/22 15:54:41 $ + + Kernel compatibility defines. + This file provides macros to mask the difference between kernel versions. + It is designed primarily to allow device drivers to be written so that + they work with a range of kernel versions. + + Written 1999-2003 Donald Becker, Scyld Computing Corporation + This software may be used and distributed according to the terms + of the GNU General Public License (GPL), incorporated herein by + reference. Drivers interacting with these functions are derivative + works and thus are covered the GPL. They must include an explicit + GPL notice. + + This code also provides inline scan and activate functions for PCI network + interfaces. It has an interface identical to pci-scan.c, but is + intended as an include file to simplify using updated drivers with older + kernel versions. + This code version matches pci-scan.c:v0.05 9/16/99 + + The author may be reached as becker@scyld.com, or + Donald Becker + Penguin Computing Corporation + 914 Bay Ridge Road, Suite 220 + Annapolis MD 21403 + + Other contributers: + <none> +*/ + +/* We try to use defined values to decide when an interface has changed or + added features, but we must have the kernel version number for a few. */ +#if ! defined(LINUX_VERSION_CODE) || (LINUX_VERSION_CODE < 0x10000) +#include <linux/version.h> +#endif +/* Older kernel versions didn't include modversions automatically. */ +#if LINUX_VERSION_CODE < 0x20300 && defined(MODVERSIONS) +#include <linux/modversions.h> +#endif + +/* There was no support for PCI address space mapping in 2.0, but the + Alpha needed it. See the 2.2 documentation. */ +#if LINUX_VERSION_CODE < 0x20100 && ! defined(__alpha__) +#define ioremap(a,b)\ + (((unsigned long)(a) >= 0x100000) ? vremap(a,b) : (void*)(a)) +#define iounmap(v)\ + do { if ((unsigned long)(v) >= 0x100000) vfree(v);} while (0) +#endif + +/* Support for adding info about the purpose of and parameters for kernel + modules was added in 2.1. */ +#if LINUX_VERSION_CODE < 0x20115 +#define MODULE_AUTHOR(name) extern int nonesuch +#define MODULE_DESCRIPTION(string) extern int nonesuch +#define MODULE_PARM(varname, typestring) extern int nonesuch +#define MODULE_PARM_DESC(var,desc) extern int nonesuch +#endif +#if !defined(MODULE_LICENSE) +#define MODULE_LICENSE(license) \ +static const char __module_license[] __attribute__((section(".modinfo"))) = \ +"license=" license +#endif +#if !defined(MODULE_PARM_DESC) +#define MODULE_PARM_DESC(var,desc) \ +const char __module_parm_desc_##var[] \ +__attribute__((section(".modinfo"))) = \ +"parm_desc_" __MODULE_STRING(var) "=" desc +#endif + +/* SMP and better multiarchitecture support were added. + Using an older kernel means we assume a little-endian uniprocessor. +*/ +#if LINUX_VERSION_CODE < 0x20123 +#define hard_smp_processor_id() smp_processor_id() +#define test_and_set_bit(val, addr) set_bit(val, addr) +#define cpu_to_le16(val) (val) +#define cpu_to_le32(val) (val) +#define le16_to_cpu(val) (val) +#define le16_to_cpus(val) /* In-place conversion. */ +#define le32_to_cpu(val) (val) +#define cpu_to_be16(val) ((((val) & 0xff) << 8) + (((val) >> 8) & 0xff)) +#define cpu_to_be32(val) ((cpu_to_be16(val) << 16) + cpu_to_be16((val) >> 16)) +typedef long spinlock_t; +#define SPIN_LOCK_UNLOCKED 0 +#define spin_lock(lock) +#define spin_unlock(lock) +#define spin_lock_irqsave(lock, flags) do {save_flags(flags); cli();} while(0) +#define spin_unlock_irqrestore(lock, flags) restore_flags(flags) +#endif + +#if LINUX_VERSION_CODE <= 0x20139 +#define net_device_stats enet_statistics +#else +#define NETSTATS_VER2 +#endif + +/* These are used by the netdrivers to report values from the + MII (Media Indpendent Interface) management registers. +*/ +#ifndef SIOCGMIIPHY +#define SIOCGMIIPHY (SIOCDEVPRIVATE) /* Get the PHY in use. */ +#define SIOCGMIIREG (SIOCDEVPRIVATE+1) /* Read a PHY register. */ +#define SIOCSMIIREG (SIOCDEVPRIVATE+2) /* Write a PHY register. */ +#endif +#ifndef SIOCGPARAMS +#define SIOCGPARAMS (SIOCDEVPRIVATE+3) /* Read operational parameters. */ +#define SIOCSPARAMS (SIOCDEVPRIVATE+4) /* Set operational parameters. */ +#endif + +#if !defined(HAVE_NETIF_MSG) +enum { + NETIF_MSG_DRV = 0x0001, + NETIF_MSG_PROBE = 0x0002, + NETIF_MSG_LINK = 0x0004, + NETIF_MSG_TIMER = 0x0008, + NETIF_MSG_IFDOWN = 0x0010, + NETIF_MSG_IFUP = 0x0020, + NETIF_MSG_RX_ERR = 0x0040, + NETIF_MSG_TX_ERR = 0x0080, + NETIF_MSG_TX_QUEUED = 0x0100, + NETIF_MSG_INTR = 0x0200, + NETIF_MSG_TX_DONE = 0x0400, + NETIF_MSG_RX_STATUS = 0x0800, + NETIF_MSG_PKTDATA = 0x1000, + /* 2000 is reserved. */ + NETIF_MSG_WOL = 0x4000, + NETIF_MSG_MISC = 0x8000, + NETIF_MSG_RXFILTER = 0x10000, +}; +#define NETIF_MSG_MAX 0x10000 +#endif + +#if !defined(NETIF_MSG_MAX) || NETIF_MSG_MAX < 0x8000 +#define NETIF_MSG_MISC 0x8000 +#endif +#if !defined(NETIF_MSG_MAX) || NETIF_MSG_MAX < 0x10000 +#define NETIF_MSG_RXFILTER 0x10000 +#endif + +#if LINUX_VERSION_CODE < 0x20155 +#include <linux/bios32.h> +#define PCI_SUPPORT_VER1 +/* A minimal version of the 2.2.* PCI support that handles configuration + space access. + Drivers that actually use pci_dev fields must do explicit compatibility. + Note that the struct pci_dev * "pointer" is actually a byte mapped integer! +*/ +#if LINUX_VERSION_CODE < 0x20014 +struct pci_dev { int not_used; }; +#endif + +#define pci_find_slot(bus, devfn) (struct pci_dev*)((bus<<8) | devfn | 0xf0000) +#define bus_number(pci_dev) ((((int)(pci_dev))>>8) & 0xff) +#define devfn_number(pci_dev) (((int)(pci_dev)) & 0xff) +#define pci_bus_number(pci_dev) ((((int)(pci_dev))>>8) & 0xff) +#define pci_devfn(pci_dev) (((int)(pci_dev)) & 0xff) + +#ifndef CONFIG_PCI +extern inline int pci_present(void) { return 0; } +#else +#define pci_present pcibios_present +#endif + +#define pci_read_config_byte(pdev, where, valp)\ + pcibios_read_config_byte(bus_number(pdev), devfn_number(pdev), where, valp) +#define pci_read_config_word(pdev, where, valp)\ + pcibios_read_config_word(bus_number(pdev), devfn_number(pdev), where, valp) +#define pci_read_config_dword(pdev, where, valp)\ + pcibios_read_config_dword(bus_number(pdev), devfn_number(pdev), where, valp) +#define pci_write_config_byte(pdev, where, val)\ + pcibios_write_config_byte(bus_number(pdev), devfn_number(pdev), where, val) +#define pci_write_config_word(pdev, where, val)\ + pcibios_write_config_word(bus_number(pdev), devfn_number(pdev), where, val) +#define pci_write_config_dword(pdev, where, val)\ + pcibios_write_config_dword(bus_number(pdev), devfn_number(pdev), where, val) +#else +#define PCI_SUPPORT_VER2 +#define pci_bus_number(pci_dev) ((pci_dev)->bus->number) +#define pci_devfn(pci_dev) ((pci_dev)->devfn) +#endif + +/* The arg count changed, but function name did not. + We cover that bad choice by defining a new name. +*/ +#if LINUX_VERSION_CODE < 0x20159 +#define dev_free_skb(skb) dev_kfree_skb(skb, FREE_WRITE) +#define dev_free_skb_irq(skb) dev_kfree_skb(skb, FREE_WRITE) +#elif LINUX_VERSION_CODE < 0x20400 +#define dev_free_skb(skb) dev_kfree_skb(skb) +#define dev_free_skb_irq(skb) dev_kfree_skb(skb) +#else +#define dev_free_skb(skb) dev_kfree_skb(skb) +#define dev_free_skb_irq(skb) dev_kfree_skb_irq(skb) +#endif + +/* Added at the suggestion of Jes Sorensen. */ +#if LINUX_VERSION_CODE > 0x20153 +#include <linux/init.h> +#else +#define __init +#define __initdata +#define __initfunc(__arginit) __arginit +#endif + +/* The old 'struct device' used a too-generic name. */ +#if LINUX_VERSION_CODE < 0x2030d +#define net_device device +#endif + +/* More changes for the 2.4 kernel, some in the zillion 2.3.99 releases. */ +#if LINUX_VERSION_CODE < 0x20363 +#define DECLARE_MUTEX(name) struct semaphore (name) = MUTEX; +#define down_write(semaphore_p) down(semaphore_p) +#define down_read(semaphore_p) down(semaphore_p) +#define up_write(semaphore_p) up(semaphore_p) +#define up_read(semaphore_p) up(semaphore_p) +/* Note that the kernel version has a broken time_before()! */ +#define time_after(a,b) ((long)(b) - (long)(a) < 0) +#define time_before(a,b) ((long)(a) - (long)(b) < 0) +#else +#define get_free_page get_zeroed_page +#endif + +/* The 2.2 kernels added the start of capability-based security for operations + that formerally could only be done by root. +*/ +#if ! defined(CAP_NET_ADMIN) +#define capable(CAP_XXX) (suser()) +#endif + +#if ! defined(HAVE_NETIF_QUEUE) +#define netif_wake_queue(dev) do { clear_bit( 0, (void*)&(dev)->tbusy); mark_bh(NET_BH); } while (0) +#define netif_start_tx_queue(dev) do { (dev)->tbusy = 0; dev->start = 1; } while (0) +#define netif_stop_tx_queue(dev) do { (dev)->tbusy = 1; dev->start = 0; } while (0) +#define netif_queue_paused(dev) ((dev)->tbusy != 0) +/* Splitting these lines exposes a bug in some preprocessors. */ +#define netif_pause_tx_queue(dev) (test_and_set_bit( 0, (void*)&(dev)->tbusy)) +#define netif_unpause_tx_queue(dev) do { clear_bit( 0, (void*)&(dev)->tbusy); } while (0) +#define netif_resume_tx_queue(dev) do { clear_bit( 0, (void*)&(dev)->tbusy); mark_bh(NET_BH); } while (0) + +#define netif_running(dev) ((dev)->start != 0) +#define netif_device_attach(dev) do {; } while (0) +#define netif_device_detach(dev) do {; } while (0) +#define netif_device_present(dev) (1) +#define netif_set_tx_timeout(dev, func, deltajiffs) do {; } while (0) +#define netif_link_down(dev) (dev)->flags &= ~IFF_RUNNING +#define netif_link_up(dev) (dev)->flags |= IFF_RUNNING + +#else + +#define netif_start_tx_queue(dev) netif_start_queue(dev) +#define netif_stop_tx_queue(dev) netif_stop_queue(dev) +#define netif_queue_paused(dev) netif_queue_stopped(dev) +#define netif_resume_tx_queue(dev) netif_wake_queue(dev) +/* Only used in transmit path. No function in 2.4. */ +#define netif_pause_tx_queue(dev) 0 +#define netif_unpause_tx_queue(dev) do {; } while (0) + +#ifdef __LINK_STATE_NOCARRIER +#define netif_link_down(dev) netif_carrier_off(dev) +#define netif_link_up(dev) netif_carrier_on(dev) +#else +#define netif_link_down(dev) (dev)->flags &= ~IFF_RUNNING +#define netif_link_up(dev) (dev)->flags |= IFF_RUNNING +#endif + +#endif +#ifndef PCI_DMA_BUS_IS_PHYS +#define pci_dma_sync_single(pci_dev, base_addr, extent, tofrom) do {; } while (0) +#define pci_map_single(pci_dev, base_addr, extent, dir) virt_to_bus(base_addr) +#define pci_unmap_single(pci_dev, base_addr, extent, dir) do {; } while (0) +#endif + +#endif +/* + * Local variables: + * c-indent-level: 4 + * c-basic-offset: 4 + * tab-width: 4 + * End: + */ |