Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 252 insertions, 0 deletions

diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
new file mode 100644
index 00000000000..8c325308489
--- /dev/null
+++ b/drivers/net/bonding/bonding.h
@@ -0,0 +1,252 @@
+/*
+ * Bond several ethernet interfaces into a Cisco, running 'Etherchannel'.
+ *
+ * Portions are (c) Copyright 1995 Simon "Guru Aleph-Null" Janes
+ * NCM: Network and Communications Management, Inc.
+ *
+ * BUT, I'm the one who modified it for ethernet, so:
+ * (c) Copyright 1999, Thomas Davis, tadavis@lbl.gov
+ *
+ *	This software may be used and distributed according to the terms
+ *	of the GNU Public License, incorporated herein by reference.
+ *
+ *
+ * 2003/03/18 - Amir Noam <amir.noam at intel dot com>,
+ *		Tsippy Mendelson <tsippy.mendelson at intel dot com> and
+ *		Shmulik Hen <shmulik.hen at intel dot com>
+ *	- Added support for IEEE 802.3ad Dynamic link aggregation mode.
+ *
+ * 2003/05/01 - Tsippy Mendelson <tsippy.mendelson at intel dot com> and
+ *		Amir Noam <amir.noam at intel dot com>
+ *	- Code beautification and style changes (mainly in comments).
+ *
+ * 2003/05/01 - Shmulik Hen <shmulik.hen at intel dot com>
+ *	- Added support for Transmit load balancing mode.
+ *
+ * 2003/12/01 - Shmulik Hen <shmulik.hen at intel dot com>
+ *	- Code cleanup and style changes
+ */
+
+#ifndef _LINUX_BONDING_H
+#define _LINUX_BONDING_H
+
+#include <linux/timer.h>
+#include <linux/proc_fs.h>
+#include <linux/if_bonding.h>
+#include "bond_3ad.h"
+#include "bond_alb.h"
+
+#define DRV_VERSION	"2.6.1"
+#define DRV_RELDATE	"October 29, 2004"
+#define DRV_NAME	"bonding"
+#define DRV_DESCRIPTION	"Ethernet Channel Bonding Driver"
+
+#define BOND_MAX_ARP_TARGETS	16
+
+#ifdef BONDING_DEBUG
+#define dprintk(fmt, args...) \
+	printk(KERN_DEBUG     \
+	       DRV_NAME ": %s() %d: " fmt, __FUNCTION__, __LINE__ , ## args )
+#else
+#define dprintk(fmt, args...)
+#endif /* BONDING_DEBUG */
+
+#define IS_UP(dev)					   \
+	      ((((dev)->flags & IFF_UP) == IFF_UP)	&& \
+	       netif_running(dev)			&& \
+	       netif_carrier_ok(dev))
+
+/*
+ * Checks whether bond is ready for transmit.
+ *
+ * Caller must hold bond->lock
+ */
+#define BOND_IS_OK(bond)			     \
+		   (((bond)->dev->flags & IFF_UP) && \
+		    netif_running((bond)->dev)	  && \
+		    ((bond)->slave_cnt > 0))
+
+/*
+ * Checks whether slave is ready for transmit.
+ */
+#define SLAVE_IS_OK(slave)			        \
+		    (((slave)->dev->flags & IFF_UP)  && \
+		     netif_running((slave)->dev)     && \
+		     ((slave)->link == BOND_LINK_UP) && \
+		     ((slave)->state == BOND_STATE_ACTIVE))
+
+
+#define USES_PRIMARY(mode)				\
+		(((mode) == BOND_MODE_ACTIVEBACKUP) ||	\
+		 ((mode) == BOND_MODE_TLB)          ||	\
+		 ((mode) == BOND_MODE_ALB))
+
+/*
+ * Less bad way to call ioctl from within the kernel; this needs to be
+ * done some other way to get the call out of interrupt context.
+ * Needs "ioctl" variable to be supplied by calling context.
+ */
+#define IOCTL(dev, arg, cmd) ({		\
+	int res = 0;			\
+	mm_segment_t fs = get_fs();	\
+	set_fs(get_ds());		\
+	res = ioctl(dev, arg, cmd);	\
+	set_fs(fs);			\
+	res; })
+
+/**
+ * bond_for_each_slave_from - iterate the slaves list from a starting point
+ * @bond:	the bond holding this list.
+ * @pos:	current slave.
+ * @cnt:	counter for max number of moves
+ * @start:	starting point.
+ *
+ * Caller must hold bond->lock
+ */
+#define bond_for_each_slave_from(bond, pos, cnt, start)	\
+	for (cnt = 0, pos = start;				\
+	     cnt < (bond)->slave_cnt;				\
+             cnt++, pos = (pos)->next)
+
+/**
+ * bond_for_each_slave_from_to - iterate the slaves list from start point to stop point
+ * @bond:	the bond holding this list.
+ * @pos:	current slave.
+ * @cnt:	counter for number max of moves
+ * @start:	start point.
+ * @stop:	stop point.
+ *
+ * Caller must hold bond->lock
+ */
+#define bond_for_each_slave_from_to(bond, pos, cnt, start, stop)	\
+	for (cnt = 0, pos = start;					\
+	     ((cnt < (bond)->slave_cnt) && (pos != (stop)->next));	\
+             cnt++, pos = (pos)->next)
+
+/**
+ * bond_for_each_slave - iterate the slaves list from head
+ * @bond:	the bond holding this list.
+ * @pos:	current slave.
+ * @cnt:	counter for max number of moves
+ *
+ * Caller must hold bond->lock
+ */
+#define bond_for_each_slave(bond, pos, cnt)	\
+		bond_for_each_slave_from(bond, pos, cnt, (bond)->first_slave)
+
+
+struct bond_params {
+	int mode;
+	int miimon;
+	int arp_interval;
+	int use_carrier;
+	int updelay;
+	int downdelay;
+	int lacp_fast;
+	char primary[IFNAMSIZ];
+	u32 arp_targets[BOND_MAX_ARP_TARGETS];
+};
+
+struct vlan_entry {
+	struct list_head vlan_list;
+	unsigned short vlan_id;
+};
+
+struct slave {
+	struct net_device *dev; /* first - usefull for panic debug */
+	struct slave *next;
+	struct slave *prev;
+	s16    delay;
+	u32    jiffies;
+	s8     link;    /* one of BOND_LINK_XXXX */
+	s8     state;   /* one of BOND_STATE_XXXX */
+	u32    original_flags;
+	u32    link_failure_count;
+	u16    speed;
+	u8     duplex;
+	u8     perm_hwaddr[ETH_ALEN];
+	struct ad_slave_info ad_info; /* HUGE - better to dynamically alloc */
+	struct tlb_slave_info tlb_info;
+};
+
+/*
+ * Here are the locking policies for the two bonding locks:
+ *
+ * 1) Get bond->lock when reading/writing slave list.
+ * 2) Get bond->curr_slave_lock when reading/writing bond->curr_active_slave.
+ *    (It is unnecessary when the write-lock is put with bond->lock.)
+ * 3) When we lock with bond->curr_slave_lock, we must lock with bond->lock
+ *    beforehand.
+ */
+struct bonding {
+	struct   net_device *dev; /* first - usefull for panic debug */
+	struct   slave *first_slave;
+	struct   slave *curr_active_slave;
+	struct   slave *current_arp_slave;
+	struct   slave *primary_slave;
+	s32      slave_cnt; /* never change this value outside the attach/detach wrappers */
+	rwlock_t lock;
+	rwlock_t curr_slave_lock;
+	struct   timer_list mii_timer;
+	struct   timer_list arp_timer;
+	s8       kill_timers;
+	struct   net_device_stats stats;
+#ifdef CONFIG_PROC_FS
+	struct   proc_dir_entry *proc_entry;
+	char     proc_file_name[IFNAMSIZ];
+#endif /* CONFIG_PROC_FS */
+	struct   list_head bond_list;
+	struct   dev_mc_list *mc_list;
+	u16      flags;
+	struct   ad_bond_info ad_info;
+	struct   alb_bond_info alb_info;
+	struct   bond_params params;
+	struct   list_head vlan_list;
+	struct   vlan_group *vlgrp;
+};
+
+/**
+ * Returns NULL if the net_device does not belong to any of the bond's slaves
+ *
+ * Caller must hold bond lock for read
+ */
+extern inline struct slave *bond_get_slave_by_dev(struct bonding *bond, struct net_device *slave_dev)
+{
+	struct slave *slave = NULL;
+	int i;
+
+	bond_for_each_slave(bond, slave, i) {
+		if (slave->dev == slave_dev) {
+			break;
+		}
+	}
+
+	return slave;
+}
+
+extern inline struct bonding *bond_get_bond_by_slave(struct slave *slave)
+{
+	if (!slave || !slave->dev->master) {
+		return NULL;
+	}
+
+	return (struct bonding *)slave->dev->master->priv;
+}
+
+extern inline void bond_set_slave_inactive_flags(struct slave *slave)
+{
+	slave->state = BOND_STATE_BACKUP;
+	slave->dev->flags |= IFF_NOARP;
+}
+
+extern inline void bond_set_slave_active_flags(struct slave *slave)
+{
+	slave->state = BOND_STATE_ACTIVE;
+	slave->dev->flags &= ~IFF_NOARP;
+}
+
+struct vlan_entry *bond_next_vlan(struct bonding *bond, struct vlan_entry *curr);
+int bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev);
+
+#endif /* _LINUX_BONDING_H */
+