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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 2007-05-18 08:25:14 -07:00
parent 32f9306b16 f6c5d736af
commit bfea13d4a1
6 changed files with 102 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
include/linux/mii.h
View File

@ -56,8 +56,8 @@
#define BMSR_ANEGCOMPLETE 0x0020 /* Auto-negotiation complete */
#define BMSR_RESV 0x00c0 /* Unused... */
#define BMSR_ESTATEN 0x0100 /* Extended Status in R15 */
#define BMSR_100FULL2 0x0200 /* Can do 100BASE-T2 HDX */
#define BMSR_100HALF2 0x0400 /* Can do 100BASE-T2 FDX */
#define BMSR_100HALF2 0x0200 /* Can do 100BASE-T2 HDX */
#define BMSR_100FULL2 0x0400 /* Can do 100BASE-T2 FDX */
#define BMSR_10HALF 0x0800 /* Can do 10mbps, half-duplex */
#define BMSR_10FULL 0x1000 /* Can do 10mbps, full-duplex */
#define BMSR_100HALF 0x2000 /* Can do 100mbps, half-duplex */

6
net/bluetooth/hci_sock.c
View File

@ -665,7 +665,8 @@ static int hci_sock_dev_event(struct notifier_block *this, unsigned long event,
/* Detach sockets from device */
read_lock(&hci_sk_list.lock);
sk_for_each(sk, node, &hci_sk_list.head) {
lock_sock(sk);
local_bh_disable();
bh_lock_sock_nested(sk);
if (hci_pi(sk)->hdev == hdev) {
hci_pi(sk)->hdev = NULL;
sk->sk_err = EPIPE;
@ -674,7 +675,8 @@ static int hci_sock_dev_event(struct notifier_block *this, unsigned long event,
hci_dev_put(hdev);
}
release_sock(sk);
bh_unlock_sock(sk);
local_bh_enable();
}
read_unlock(&hci_sk_list.lock);
}

69
net/core/dev.c
View File

@ -116,6 +116,7 @@
#include <linux/dmaengine.h>
#include <linux/err.h>
#include <linux/ctype.h>
#include <linux/if_arp.h>
/*
* The list of packet types we will receive (as opposed to discard)
@ -217,6 +218,73 @@ extern void netdev_unregister_sysfs(struct net_device *);
#define netdev_unregister_sysfs(dev) do { } while(0)
#endif
#ifdef CONFIG_DEBUG_LOCK_ALLOC
/*
* register_netdevice() inits dev->_xmit_lock and sets lockdep class
* according to dev->type
*/
static const unsigned short netdev_lock_type[] =
{ARPHRD_NETROM, ARPHRD_ETHER, ARPHRD_EETHER, ARPHRD_AX25,
ARPHRD_PRONET, ARPHRD_CHAOS, ARPHRD_IEEE802, ARPHRD_ARCNET,
ARPHRD_APPLETLK, ARPHRD_DLCI, ARPHRD_ATM, ARPHRD_METRICOM,
ARPHRD_IEEE1394, ARPHRD_EUI64, ARPHRD_INFINIBAND, ARPHRD_SLIP,
ARPHRD_CSLIP, ARPHRD_SLIP6, ARPHRD_CSLIP6, ARPHRD_RSRVD,
ARPHRD_ADAPT, ARPHRD_ROSE, ARPHRD_X25, ARPHRD_HWX25,
ARPHRD_PPP, ARPHRD_CISCO, ARPHRD_LAPB, ARPHRD_DDCMP,
ARPHRD_RAWHDLC, ARPHRD_TUNNEL, ARPHRD_TUNNEL6, ARPHRD_FRAD,
ARPHRD_SKIP, ARPHRD_LOOPBACK, ARPHRD_LOCALTLK, ARPHRD_FDDI,
ARPHRD_BIF, ARPHRD_SIT, ARPHRD_IPDDP, ARPHRD_IPGRE,
ARPHRD_PIMREG, ARPHRD_HIPPI, ARPHRD_ASH, ARPHRD_ECONET,
ARPHRD_IRDA, ARPHRD_FCPP, ARPHRD_FCAL, ARPHRD_FCPL,
ARPHRD_FCFABRIC, ARPHRD_IEEE802_TR, ARPHRD_IEEE80211,
ARPHRD_IEEE80211_PRISM, ARPHRD_IEEE80211_RADIOTAP, ARPHRD_VOID,
ARPHRD_NONE};
static const char *netdev_lock_name[] =
{"_xmit_NETROM", "_xmit_ETHER", "_xmit_EETHER", "_xmit_AX25",
"_xmit_PRONET", "_xmit_CHAOS", "_xmit_IEEE802", "_xmit_ARCNET",
"_xmit_APPLETLK", "_xmit_DLCI", "_xmit_ATM", "_xmit_METRICOM",
"_xmit_IEEE1394", "_xmit_EUI64", "_xmit_INFINIBAND", "_xmit_SLIP",
"_xmit_CSLIP", "_xmit_SLIP6", "_xmit_CSLIP6", "_xmit_RSRVD",
"_xmit_ADAPT", "_xmit_ROSE", "_xmit_X25", "_xmit_HWX25",
"_xmit_PPP", "_xmit_CISCO", "_xmit_LAPB", "_xmit_DDCMP",
"_xmit_RAWHDLC", "_xmit_TUNNEL", "_xmit_TUNNEL6", "_xmit_FRAD",
"_xmit_SKIP", "_xmit_LOOPBACK", "_xmit_LOCALTLK", "_xmit_FDDI",
"_xmit_BIF", "_xmit_SIT", "_xmit_IPDDP", "_xmit_IPGRE",
"_xmit_PIMREG", "_xmit_HIPPI", "_xmit_ASH", "_xmit_ECONET",
"_xmit_IRDA", "_xmit_FCPP", "_xmit_FCAL", "_xmit_FCPL",
"_xmit_FCFABRIC", "_xmit_IEEE802_TR", "_xmit_IEEE80211",
"_xmit_IEEE80211_PRISM", "_xmit_IEEE80211_RADIOTAP", "_xmit_VOID",
"_xmit_NONE"};
static struct lock_class_key netdev_xmit_lock_key[ARRAY_SIZE(netdev_lock_type)];
static inline unsigned short netdev_lock_pos(unsigned short dev_type)
{
int i;
for (i = 0; i < ARRAY_SIZE(netdev_lock_type); i++)
if (netdev_lock_type[i] == dev_type)
return i;
/* the last key is used by default */
return ARRAY_SIZE(netdev_lock_type) - 1;
}
static inline void netdev_set_lockdep_class(spinlock_t *lock,
unsigned short dev_type)
{
int i;
i = netdev_lock_pos(dev_type);
lockdep_set_class_and_name(lock, &netdev_xmit_lock_key[i],
netdev_lock_name[i]);
}
#else
static inline void netdev_set_lockdep_class(spinlock_t *lock,
unsigned short dev_type)
{
}
#endif
/*******************************************************************************
@ -3001,6 +3069,7 @@ int register_netdevice(struct net_device *dev)
spin_lock_init(&dev->queue_lock);
spin_lock_init(&dev->_xmit_lock);
netdev_set_lockdep_class(&dev->_xmit_lock, dev->type);
dev->xmit_lock_owner = -1;
spin_lock_init(&dev->ingress_lock);

7
net/ipv4/Kconfig
View File

@ -43,11 +43,11 @@ config IP_ADVANCED_ROUTER
asymmetric routing (packets from you to a host take a different path
than packets from that host to you) or if you operate a non-routing
host which has several IP addresses on different interfaces. To turn
rp_filter off use:
rp_filter on use:
echo 0 > /proc/sys/net/ipv4/conf/<device>/rp_filter
echo 1 > /proc/sys/net/ipv4/conf/<device>/rp_filter
or
echo 0 > /proc/sys/net/ipv4/conf/all/rp_filter
echo 1 > /proc/sys/net/ipv4/conf/all/rp_filter
If unsure, say N here.
@ -577,6 +577,7 @@ config TCP_CONG_VENO
config TCP_CONG_YEAH
tristate "YeAH TCP"
depends on EXPERIMENTAL
select TCP_CONG_VEGAS
default n
---help---
YeAH-TCP is a sender-side high-speed enabled TCP congestion control

4
net/ipv4/route.c
View File

@ -2396,7 +2396,7 @@ static int ip_route_output_slow(struct rtable **rp, const struct flowi *oldflp)
/* It is equivalent to inet_addr_type(saddr) == RTN_LOCAL */
dev_out = ip_dev_find(oldflp->fl4_src);
if ((dev_out == NULL) && !(sysctl_ip_nonlocal_bind))
if (dev_out == NULL)
goto out;
/* I removed check for oif == dev_out->oif here.
@ -2407,7 +2407,7 @@ static int ip_route_output_slow(struct rtable **rp, const struct flowi *oldflp)
of another iface. --ANK
*/
if (dev_out && oldflp->oif == 0
if (oldflp->oif == 0
&& (MULTICAST(oldflp->fl4_dst) || oldflp->fl4_dst == htonl(0xFFFFFFFF))) {
/* Special hack: user can direct multicasts
and limited broadcast via necessary interface

38
net/ipv4/tcp_cong.c
View File

@ -276,30 +276,34 @@ int tcp_set_congestion_control(struct sock *sk, const char *name)
/*
* Slow start (exponential increase) with
* RFC3742 Limited Slow Start (fast linear increase) support.
* Slow start is used when congestion window is less than slow start
* threshold. This version implements the basic RFC2581 version
* and optionally supports:
* RFC3742 Limited Slow Start - growth limited to max_ssthresh
* RFC3465 Appropriate Byte Counting - growth limited by bytes acknowledged
*/
void tcp_slow_start(struct tcp_sock *tp)
{
int cnt = 0;
int cnt; /* increase in packets */
if (sysctl_tcp_abc) {
/* RFC3465: Slow Start
* TCP sender SHOULD increase cwnd by the number of
* previously unacknowledged bytes ACKed by each incoming
* acknowledgment, provided the increase is not more than L
*/
if (tp->bytes_acked < tp->mss_cache)
return;
}
/* RFC3465: ABC Slow start
* Increase only after a full MSS of bytes is acked
*
* TCP sender SHOULD increase cwnd by the number of
* previously unacknowledged bytes ACKed by each incoming
* acknowledgment, provided the increase is not more than L
*/
if (sysctl_tcp_abc && tp->bytes_acked < tp->mss_cache)
return;
if (sysctl_tcp_max_ssthresh > 0 &&
tp->snd_cwnd > sysctl_tcp_max_ssthresh)
cnt += sysctl_tcp_max_ssthresh>>1;
if (sysctl_tcp_max_ssthresh > 0 && tp->snd_cwnd > sysctl_tcp_max_ssthresh)
cnt = sysctl_tcp_max_ssthresh >> 1; /* limited slow start */
else
cnt += tp->snd_cwnd;
cnt = tp->snd_cwnd; /* exponential increase */
/* RFC3465: We MAY increase by 2 if discovered delayed ack */
/* RFC3465: ABC
* We MAY increase by 2 if discovered delayed ack
*/
if (sysctl_tcp_abc > 1 && tp->bytes_acked >= 2*tp->mss_cache)
cnt <<= 1;
tp->bytes_acked = 0;