diff options
author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
---|---|---|
committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/include/linux/etherdevice.h | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/include/linux/etherdevice.h')
-rw-r--r-- | ANDROID_3.4.5/include/linux/etherdevice.h | 280 |
1 files changed, 0 insertions, 280 deletions
diff --git a/ANDROID_3.4.5/include/linux/etherdevice.h b/ANDROID_3.4.5/include/linux/etherdevice.h deleted file mode 100644 index fe5136d8..00000000 --- a/ANDROID_3.4.5/include/linux/etherdevice.h +++ /dev/null @@ -1,280 +0,0 @@ -/* - * INET An implementation of the TCP/IP protocol suite for the LINUX - * operating system. NET is implemented using the BSD Socket - * interface as the means of communication with the user level. - * - * Definitions for the Ethernet handlers. - * - * Version: @(#)eth.h 1.0.4 05/13/93 - * - * Authors: Ross Biro - * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> - * - * Relocated to include/linux where it belongs by Alan Cox - * <gw4pts@gw4pts.ampr.org> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - * WARNING: This move may well be temporary. This file will get merged with others RSN. - * - */ -#ifndef _LINUX_ETHERDEVICE_H -#define _LINUX_ETHERDEVICE_H - -#include <linux/if_ether.h> -#include <linux/netdevice.h> -#include <linux/random.h> -#include <asm/unaligned.h> - -#ifdef __KERNEL__ -extern __be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev); -extern const struct header_ops eth_header_ops; - -extern int eth_header(struct sk_buff *skb, struct net_device *dev, - unsigned short type, - const void *daddr, const void *saddr, unsigned len); -extern int eth_rebuild_header(struct sk_buff *skb); -extern int eth_header_parse(const struct sk_buff *skb, unsigned char *haddr); -extern int eth_header_cache(const struct neighbour *neigh, struct hh_cache *hh, __be16 type); -extern void eth_header_cache_update(struct hh_cache *hh, - const struct net_device *dev, - const unsigned char *haddr); -extern int eth_mac_addr(struct net_device *dev, void *p); -extern int eth_change_mtu(struct net_device *dev, int new_mtu); -extern int eth_validate_addr(struct net_device *dev); - - - -extern struct net_device *alloc_etherdev_mqs(int sizeof_priv, unsigned int txqs, - unsigned int rxqs); -#define alloc_etherdev(sizeof_priv) alloc_etherdev_mq(sizeof_priv, 1) -#define alloc_etherdev_mq(sizeof_priv, count) alloc_etherdev_mqs(sizeof_priv, count, count) - -/** - * is_zero_ether_addr - Determine if give Ethernet address is all zeros. - * @addr: Pointer to a six-byte array containing the Ethernet address - * - * Return true if the address is all zeroes. - */ -static inline int is_zero_ether_addr(const u8 *addr) -{ - return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]); -} - -/** - * is_multicast_ether_addr - Determine if the Ethernet address is a multicast. - * @addr: Pointer to a six-byte array containing the Ethernet address - * - * Return true if the address is a multicast address. - * By definition the broadcast address is also a multicast address. - */ -static inline int is_multicast_ether_addr(const u8 *addr) -{ - return 0x01 & addr[0]; -} - -/** - * is_local_ether_addr - Determine if the Ethernet address is locally-assigned one (IEEE 802). - * @addr: Pointer to a six-byte array containing the Ethernet address - * - * Return true if the address is a local address. - */ -static inline int is_local_ether_addr(const u8 *addr) -{ - return 0x02 & addr[0]; -} - -/** - * is_broadcast_ether_addr - Determine if the Ethernet address is broadcast - * @addr: Pointer to a six-byte array containing the Ethernet address - * - * Return true if the address is the broadcast address. - */ -static inline int is_broadcast_ether_addr(const u8 *addr) -{ - return (addr[0] & addr[1] & addr[2] & addr[3] & addr[4] & addr[5]) == 0xff; -} - -/** - * is_unicast_ether_addr - Determine if the Ethernet address is unicast - * @addr: Pointer to a six-byte array containing the Ethernet address - * - * Return true if the address is a unicast address. - */ -static inline int is_unicast_ether_addr(const u8 *addr) -{ - return !is_multicast_ether_addr(addr); -} - -/** - * is_valid_ether_addr - Determine if the given Ethernet address is valid - * @addr: Pointer to a six-byte array containing the Ethernet address - * - * Check that the Ethernet address (MAC) is not 00:00:00:00:00:00, is not - * a multicast address, and is not FF:FF:FF:FF:FF:FF. - * - * Return true if the address is valid. - */ -static inline int is_valid_ether_addr(const u8 *addr) -{ - /* FF:FF:FF:FF:FF:FF is a multicast address so we don't need to - * explicitly check for it here. */ - return !is_multicast_ether_addr(addr) && !is_zero_ether_addr(addr); -} - -/** - * random_ether_addr - Generate software assigned random Ethernet address - * @addr: Pointer to a six-byte array containing the Ethernet address - * - * Generate a random Ethernet address (MAC) that is not multicast - * and has the local assigned bit set. - */ -static inline void random_ether_addr(u8 *addr) -{ - get_random_bytes (addr, ETH_ALEN); - addr [0] &= 0xfe; /* clear multicast bit */ - addr [0] |= 0x02; /* set local assignment bit (IEEE802) */ -} - -/** - * eth_hw_addr_random - Generate software assigned random Ethernet and - * set device flag - * @dev: pointer to net_device structure - * - * Generate a random Ethernet address (MAC) to be used by a net device - * and set addr_assign_type so the state can be read by sysfs and be - * used by userspace. - */ -static inline void eth_hw_addr_random(struct net_device *dev) -{ - dev->addr_assign_type |= NET_ADDR_RANDOM; - random_ether_addr(dev->dev_addr); -} - -/** - * compare_ether_addr - Compare two Ethernet addresses - * @addr1: Pointer to a six-byte array containing the Ethernet address - * @addr2: Pointer other six-byte array containing the Ethernet address - * - * Compare two ethernet addresses, returns 0 if equal, non-zero otherwise. - * Unlike memcmp(), it doesn't return a value suitable for sorting. - */ -static inline unsigned compare_ether_addr(const u8 *addr1, const u8 *addr2) -{ - const u16 *a = (const u16 *) addr1; - const u16 *b = (const u16 *) addr2; - - BUILD_BUG_ON(ETH_ALEN != 6); - return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2])) != 0; -} - -static inline unsigned long zap_last_2bytes(unsigned long value) -{ -#ifdef __BIG_ENDIAN - return value >> 16; -#else - return value << 16; -#endif -} - -/** - * compare_ether_addr_64bits - Compare two Ethernet addresses - * @addr1: Pointer to an array of 8 bytes - * @addr2: Pointer to an other array of 8 bytes - * - * Compare two ethernet addresses, returns 0 if equal, non-zero otherwise. - * Unlike memcmp(), it doesn't return a value suitable for sorting. - * The function doesn't need any conditional branches and possibly uses - * word memory accesses on CPU allowing cheap unaligned memory reads. - * arrays = { byte1, byte2, byte3, byte4, byte6, byte7, pad1, pad2} - * - * Please note that alignment of addr1 & addr2 is only guaranted to be 16 bits. - */ - -static inline unsigned compare_ether_addr_64bits(const u8 addr1[6+2], - const u8 addr2[6+2]) -{ -#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS - unsigned long fold = ((*(unsigned long *)addr1) ^ - (*(unsigned long *)addr2)); - - if (sizeof(fold) == 8) - return zap_last_2bytes(fold) != 0; - - fold |= zap_last_2bytes((*(unsigned long *)(addr1 + 4)) ^ - (*(unsigned long *)(addr2 + 4))); - return fold != 0; -#else - return compare_ether_addr(addr1, addr2); -#endif -} - -/** - * is_etherdev_addr - Tell if given Ethernet address belongs to the device. - * @dev: Pointer to a device structure - * @addr: Pointer to a six-byte array containing the Ethernet address - * - * Compare passed address with all addresses of the device. Return true if the - * address if one of the device addresses. - * - * Note that this function calls compare_ether_addr_64bits() so take care of - * the right padding. - */ -static inline bool is_etherdev_addr(const struct net_device *dev, - const u8 addr[6 + 2]) -{ - struct netdev_hw_addr *ha; - int res = 1; - - rcu_read_lock(); - for_each_dev_addr(dev, ha) { - res = compare_ether_addr_64bits(addr, ha->addr); - if (!res) - break; - } - rcu_read_unlock(); - return !res; -} -#endif /* __KERNEL__ */ - -/** - * compare_ether_header - Compare two Ethernet headers - * @a: Pointer to Ethernet header - * @b: Pointer to Ethernet header - * - * Compare two ethernet headers, returns 0 if equal. - * This assumes that the network header (i.e., IP header) is 4-byte - * aligned OR the platform can handle unaligned access. This is the - * case for all packets coming into netif_receive_skb or similar - * entry points. - */ - -static inline unsigned long compare_ether_header(const void *a, const void *b) -{ -#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64 - unsigned long fold; - - /* - * We want to compare 14 bytes: - * [a0 ... a13] ^ [b0 ... b13] - * Use two long XOR, ORed together, with an overlap of two bytes. - * [a0 a1 a2 a3 a4 a5 a6 a7 ] ^ [b0 b1 b2 b3 b4 b5 b6 b7 ] | - * [a6 a7 a8 a9 a10 a11 a12 a13] ^ [b6 b7 b8 b9 b10 b11 b12 b13] - * This means the [a6 a7] ^ [b6 b7] part is done two times. - */ - fold = *(unsigned long *)a ^ *(unsigned long *)b; - fold |= *(unsigned long *)(a + 6) ^ *(unsigned long *)(b + 6); - return fold; -#else - u32 *a32 = (u32 *)((u8 *)a + 2); - u32 *b32 = (u32 *)((u8 *)b + 2); - - return (*(u16 *)a ^ *(u16 *)b) | (a32[0] ^ b32[0]) | - (a32[1] ^ b32[1]) | (a32[2] ^ b32[2]); -#endif -} - -#endif /* _LINUX_ETHERDEVICE_H */ |