forked from Minki/linux
Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[IPV4]: Remove IPVS icmp hack from route.c for now.
[IPV4]: Correct rp_filter help text.
[TCP]: TCP_CONG_YEAH requires TCP_CONG_VEGAS
[TCP] slow start: Make comments and code logic clearer.
[BLUETOOTH]: Fix locking in hci_sock_dev_event().
[NET]: Fix BMSR_100{HALF,FULL}2 defines in linux/mii.h
[NET]: lockdep classes in register_netdevice
This commit is contained in:
Linus Torvalds
commit
bfea13d4a1
@ -56,8 +56,8 @@
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#define BMSR_ANEGCOMPLETE 0x0020 /* Auto-negotiation complete */
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#define BMSR_RESV 0x00c0 /* Unused... */
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#define BMSR_ESTATEN 0x0100 /* Extended Status in R15 */
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#define BMSR_100FULL2 0x0200 /* Can do 100BASE-T2 HDX */
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#define BMSR_100HALF2 0x0400 /* Can do 100BASE-T2 FDX */
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#define BMSR_100HALF2 0x0200 /* Can do 100BASE-T2 HDX */
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#define BMSR_100FULL2 0x0400 /* Can do 100BASE-T2 FDX */
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#define BMSR_10HALF 0x0800 /* Can do 10mbps, half-duplex */
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#define BMSR_10FULL 0x1000 /* Can do 10mbps, full-duplex */
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#define BMSR_100HALF 0x2000 /* Can do 100mbps, half-duplex */
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@ -665,7 +665,8 @@ static int hci_sock_dev_event(struct notifier_block *this, unsigned long event,
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/* Detach sockets from device */
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read_lock(&hci_sk_list.lock);
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sk_for_each(sk, node, &hci_sk_list.head) {
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lock_sock(sk);
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local_bh_disable();
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bh_lock_sock_nested(sk);
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if (hci_pi(sk)->hdev == hdev) {
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hci_pi(sk)->hdev = NULL;
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sk->sk_err = EPIPE;
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@ -674,7 +675,8 @@ static int hci_sock_dev_event(struct notifier_block *this, unsigned long event,
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hci_dev_put(hdev);
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}
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release_sock(sk);
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bh_unlock_sock(sk);
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local_bh_enable();
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}
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read_unlock(&hci_sk_list.lock);
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}
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@ -116,6 +116,7 @@
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#include <linux/dmaengine.h>
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#include <linux/err.h>
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#include <linux/ctype.h>
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#include <linux/if_arp.h>
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/*
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* The list of packet types we will receive (as opposed to discard)
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@ -217,6 +218,73 @@ extern void netdev_unregister_sysfs(struct net_device *);
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#define netdev_unregister_sysfs(dev) do { } while(0)
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#endif
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#ifdef CONFIG_DEBUG_LOCK_ALLOC
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/*
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* register_netdevice() inits dev->_xmit_lock and sets lockdep class
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* according to dev->type
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*/
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static const unsigned short netdev_lock_type[] =
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{ARPHRD_NETROM, ARPHRD_ETHER, ARPHRD_EETHER, ARPHRD_AX25,
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ARPHRD_PRONET, ARPHRD_CHAOS, ARPHRD_IEEE802, ARPHRD_ARCNET,
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ARPHRD_APPLETLK, ARPHRD_DLCI, ARPHRD_ATM, ARPHRD_METRICOM,
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ARPHRD_IEEE1394, ARPHRD_EUI64, ARPHRD_INFINIBAND, ARPHRD_SLIP,
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ARPHRD_CSLIP, ARPHRD_SLIP6, ARPHRD_CSLIP6, ARPHRD_RSRVD,
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ARPHRD_ADAPT, ARPHRD_ROSE, ARPHRD_X25, ARPHRD_HWX25,
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ARPHRD_PPP, ARPHRD_CISCO, ARPHRD_LAPB, ARPHRD_DDCMP,
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ARPHRD_RAWHDLC, ARPHRD_TUNNEL, ARPHRD_TUNNEL6, ARPHRD_FRAD,
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ARPHRD_SKIP, ARPHRD_LOOPBACK, ARPHRD_LOCALTLK, ARPHRD_FDDI,
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ARPHRD_BIF, ARPHRD_SIT, ARPHRD_IPDDP, ARPHRD_IPGRE,
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ARPHRD_PIMREG, ARPHRD_HIPPI, ARPHRD_ASH, ARPHRD_ECONET,
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ARPHRD_IRDA, ARPHRD_FCPP, ARPHRD_FCAL, ARPHRD_FCPL,
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ARPHRD_FCFABRIC, ARPHRD_IEEE802_TR, ARPHRD_IEEE80211,
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ARPHRD_IEEE80211_PRISM, ARPHRD_IEEE80211_RADIOTAP, ARPHRD_VOID,
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ARPHRD_NONE};
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static const char *netdev_lock_name[] =
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{"_xmit_NETROM", "_xmit_ETHER", "_xmit_EETHER", "_xmit_AX25",
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"_xmit_PRONET", "_xmit_CHAOS", "_xmit_IEEE802", "_xmit_ARCNET",
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"_xmit_APPLETLK", "_xmit_DLCI", "_xmit_ATM", "_xmit_METRICOM",
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"_xmit_IEEE1394", "_xmit_EUI64", "_xmit_INFINIBAND", "_xmit_SLIP",
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"_xmit_CSLIP", "_xmit_SLIP6", "_xmit_CSLIP6", "_xmit_RSRVD",
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"_xmit_ADAPT", "_xmit_ROSE", "_xmit_X25", "_xmit_HWX25",
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"_xmit_PPP", "_xmit_CISCO", "_xmit_LAPB", "_xmit_DDCMP",
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"_xmit_RAWHDLC", "_xmit_TUNNEL", "_xmit_TUNNEL6", "_xmit_FRAD",
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"_xmit_SKIP", "_xmit_LOOPBACK", "_xmit_LOCALTLK", "_xmit_FDDI",
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"_xmit_BIF", "_xmit_SIT", "_xmit_IPDDP", "_xmit_IPGRE",
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"_xmit_PIMREG", "_xmit_HIPPI", "_xmit_ASH", "_xmit_ECONET",
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"_xmit_IRDA", "_xmit_FCPP", "_xmit_FCAL", "_xmit_FCPL",
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"_xmit_FCFABRIC", "_xmit_IEEE802_TR", "_xmit_IEEE80211",
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"_xmit_IEEE80211_PRISM", "_xmit_IEEE80211_RADIOTAP", "_xmit_VOID",
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"_xmit_NONE"};
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static struct lock_class_key netdev_xmit_lock_key[ARRAY_SIZE(netdev_lock_type)];
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static inline unsigned short netdev_lock_pos(unsigned short dev_type)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(netdev_lock_type); i++)
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if (netdev_lock_type[i] == dev_type)
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return i;
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/* the last key is used by default */
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return ARRAY_SIZE(netdev_lock_type) - 1;
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}
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static inline void netdev_set_lockdep_class(spinlock_t *lock,
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unsigned short dev_type)
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{
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int i;
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i = netdev_lock_pos(dev_type);
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lockdep_set_class_and_name(lock, &netdev_xmit_lock_key[i],
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netdev_lock_name[i]);
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}
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#else
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static inline void netdev_set_lockdep_class(spinlock_t *lock,
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unsigned short dev_type)
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{
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}
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#endif
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/*******************************************************************************
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@ -3001,6 +3069,7 @@ int register_netdevice(struct net_device *dev)
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spin_lock_init(&dev->queue_lock);
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spin_lock_init(&dev->_xmit_lock);
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netdev_set_lockdep_class(&dev->_xmit_lock, dev->type);
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dev->xmit_lock_owner = -1;
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spin_lock_init(&dev->ingress_lock);
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@ -43,11 +43,11 @@ config IP_ADVANCED_ROUTER
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asymmetric routing (packets from you to a host take a different path
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than packets from that host to you) or if you operate a non-routing
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host which has several IP addresses on different interfaces. To turn
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rp_filter off use:
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rp_filter on use:
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echo 0 > /proc/sys/net/ipv4/conf/<device>/rp_filter
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echo 1 > /proc/sys/net/ipv4/conf/<device>/rp_filter
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or
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echo 0 > /proc/sys/net/ipv4/conf/all/rp_filter
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echo 1 > /proc/sys/net/ipv4/conf/all/rp_filter
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If unsure, say N here.
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@ -577,6 +577,7 @@ config TCP_CONG_VENO
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config TCP_CONG_YEAH
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tristate "YeAH TCP"
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depends on EXPERIMENTAL
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select TCP_CONG_VEGAS
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default n
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---help---
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YeAH-TCP is a sender-side high-speed enabled TCP congestion control
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@ -2396,7 +2396,7 @@ static int ip_route_output_slow(struct rtable **rp, const struct flowi *oldflp)
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/* It is equivalent to inet_addr_type(saddr) == RTN_LOCAL */
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dev_out = ip_dev_find(oldflp->fl4_src);
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if ((dev_out == NULL) && !(sysctl_ip_nonlocal_bind))
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if (dev_out == NULL)
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goto out;
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/* I removed check for oif == dev_out->oif here.
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@ -2407,7 +2407,7 @@ static int ip_route_output_slow(struct rtable **rp, const struct flowi *oldflp)
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of another iface. --ANK
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*/
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if (dev_out && oldflp->oif == 0
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if (oldflp->oif == 0
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&& (MULTICAST(oldflp->fl4_dst) || oldflp->fl4_dst == htonl(0xFFFFFFFF))) {
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/* Special hack: user can direct multicasts
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and limited broadcast via necessary interface
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@ -276,30 +276,34 @@ int tcp_set_congestion_control(struct sock *sk, const char *name)
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/*
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* Slow start (exponential increase) with
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* RFC3742 Limited Slow Start (fast linear increase) support.
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* Slow start is used when congestion window is less than slow start
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* threshold. This version implements the basic RFC2581 version
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* and optionally supports:
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* RFC3742 Limited Slow Start - growth limited to max_ssthresh
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* RFC3465 Appropriate Byte Counting - growth limited by bytes acknowledged
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*/
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void tcp_slow_start(struct tcp_sock *tp)
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{
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int cnt = 0;
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int cnt; /* increase in packets */
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if (sysctl_tcp_abc) {
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/* RFC3465: Slow Start
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* TCP sender SHOULD increase cwnd by the number of
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* previously unacknowledged bytes ACKed by each incoming
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* acknowledgment, provided the increase is not more than L
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*/
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if (tp->bytes_acked < tp->mss_cache)
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return;
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}
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/* RFC3465: ABC Slow start
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* Increase only after a full MSS of bytes is acked
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*
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* TCP sender SHOULD increase cwnd by the number of
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* previously unacknowledged bytes ACKed by each incoming
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* acknowledgment, provided the increase is not more than L
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*/
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if (sysctl_tcp_abc && tp->bytes_acked < tp->mss_cache)
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return;
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if (sysctl_tcp_max_ssthresh > 0 &&
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tp->snd_cwnd > sysctl_tcp_max_ssthresh)
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cnt += sysctl_tcp_max_ssthresh>>1;
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if (sysctl_tcp_max_ssthresh > 0 && tp->snd_cwnd > sysctl_tcp_max_ssthresh)
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cnt = sysctl_tcp_max_ssthresh >> 1; /* limited slow start */
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else
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cnt += tp->snd_cwnd;
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cnt = tp->snd_cwnd; /* exponential increase */
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/* RFC3465: We MAY increase by 2 if discovered delayed ack */
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/* RFC3465: ABC
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* We MAY increase by 2 if discovered delayed ack
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*/
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if (sysctl_tcp_abc > 1 && tp->bytes_acked >= 2*tp->mss_cache)
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cnt <<= 1;
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tp->bytes_acked = 0;
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