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* [NETEM]: report reorder percent correctly.Stephen Hemminger2007-04-26
| | | | | | | | | | If you setup netem to just delay packets; "tc qdisc ls" will report the reordering as 100%. Well it's a lie, reorder isn't used unless gap is set, so just set value to 0 so the output of utility is correct. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PKT_SCHED] act: Use rtnl registration interfaceThomas Graf2007-04-26
| | | | | Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PKT_SCHED] cls: Use rtnl registration interfaceThomas Graf2007-04-26
| | | | | Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PKT_SCHED] qdisc: Use rtnl registration interfaceThomas Graf2007-04-26
| | | | | Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETLINK]: Use nlmsg_trim() where appropriateArnaldo Carvalho de Melo2007-04-26
| | | | | Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SK_BUFF]: Convert skb->tail to sk_buff_data_tArnaldo Carvalho de Melo2007-04-26
| | | | | | | | | | | | | | | So that it is also an offset from skb->head, reduces its size from 8 to 4 bytes on 64bit architectures, allowing us to combine the 4 bytes hole left by the layer headers conversion, reducing struct sk_buff size to 256 bytes, i.e. 4 64byte cachelines, and since the sk_buff slab cache is SLAB_HWCACHE_ALIGN... :-) Many calculations that previously required that skb->{transport,network, mac}_header be first converted to a pointer now can be done directly, being meaningful as offsets or pointers. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: Fix warningPatrick McHardy2007-04-26
| | | | | | | | net/sched/sch_api.c: In function 'psched_show': net/sched/sch_api.c:1219: warning: format '%08x' expects type 'unsigned int', but argument 6 has type 's64' Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: sch_cbq: fix watchdog scheduled too latePatrick McHardy2007-04-26
| | | | | | | | | q->now is increased during dequeue and doesn't contain the current time afterwards, resulting in a too large timeout value for the qdisc watchdog. Use "now" instead, which still contains the current time. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: Export real timer resolution in /proc/net/pschedPatrick McHardy2007-04-26
| | | | | | | | | | | | | | | The timer resolution exported in /proc/net/psched is used by userspace to calculate HTB's burst values. Currently it is set to HZ, since we're now using hrtimers, use KTIME_MONOTONIC_RES, which makes HTB use smaller burst values. This patch also affects libnl, which incorrectly uses this value for the SFQ perturbation parameter, which is always in seconds, and some routing cache values, which are in USER_HZ, so both cases are broken anyway. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: kill jiffie conversion macrosPatrick McHardy2007-04-26
| | | | | | | | | | Now that all packet schedulers have been converted to hrtimers most users of PSCHED_JIFFIE2US and PSCHED_US2JIFFIE are gone. The remaining users use it to convert external time units to packet scheduler clock ticks, so use PSCHED_TICKS_PER_SEC instead. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: sch_htb: use hrtimer based watchdogPatrick McHardy2007-04-26
| | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: sch_cbq: use hrtimer for delay_timerPatrick McHardy2007-04-26
| | | | | | | | | | | | Switch delay_timer to hrtimer. The class penalty parameter is changed to use psched ticks as units. Since iproute never supported using this and the only existing user (libnl) incorrectly assumes psched ticks as units anyway, this shouldn't break anything. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: sch_cbq: fix cbq_undelay_prio for non-active prioritesPatrick McHardy2007-04-26
| | | | | | | | | | cbq_undelay_prio is supposed to return a time delta, but returns the current time for non-active priorities, causing cbq_undelay to mark the priority as active and schedule a timer for twice the current time. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: sch_cbq: use hrtimer based watchdogPatrick McHardy2007-04-26
| | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: sch_netem: use hrtimer based watchdogPatrick McHardy2007-04-26
| | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: sch_tbf: use hrtimer based watchdogPatrick McHardy2007-04-26
| | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: sch_hfsc: use hrtimer based watchdogPatrick McHardy2007-04-26
| | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: Add hrtimer based qdisc watchdogPatrick McHardy2007-04-26
| | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: Use ktime as clocksourcePatrick McHardy2007-04-26
| | | | | | | | | | | | | Get rid of the manual clock source selection mess and use ktime. Also use a scalar representation, which allows to clean up pkt_sched.h a bit more and results in less ktime_to_ns() calls in most cases. The PSCHED_US2JIFFIE/PSCHED_JIFFIE2US macros are implemented quite inefficient by this patch, following patches will convert all qdiscs to hrtimers and get rid of them entirely. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SK_BUFF]: Introduce ipv6_hdr(), remove skb->nh.ipv6hArnaldo Carvalho de Melo2007-04-26
| | | | | | | | | | Now the skb->nh union has just one member, .raw, i.e. it is just like the skb->mac union, strange, no? I'm just leaving it like that till the transport layer is done with, when we'll rename skb->mac.raw to skb->mac_header (or ->mac_header_offset?), ditto for ->{h,nh}. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iphArnaldo Carvalho de Melo2007-04-26
| | | | | Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SK_BUFF]: Introduce skb_network_header()Arnaldo Carvalho de Melo2007-04-26
| | | | | | | | | For the places where we need a pointer to the network header, it is still legal to touch skb->nh.raw directly if just adding to, subtracting from or setting it to another layer header. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SK_BUFF]: Introduce skb_network_offset()Arnaldo Carvalho de Melo2007-04-26
| | | | | | | For the quite common 'skb->nh.raw - skb->data' sequence. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET] SCHED: Use htons() where appropriate.YOSHIFUJI Hideaki2007-04-26
| | | | | Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: cls_tcindex: fix compatibility breakagePatrick McHardy2007-04-09
| | | | | | | | | | | Userspace uses an integer for TCA_TCINDEX_SHIFT, the kernel was changed to expect and use a u16 value in 2.6.11, which broke compatibility on big endian machines. Change back to use int. Reported by Ole Reinartz <ole.reinartz@gmx.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: cls_basic: fix memory leak in basic_destroyPatrick McHardy2007-04-02
| | | | | | | tp->root is not freed on destruction. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IFB]: Fix crash on input device removalPatrick McHardy2007-03-29
| | | | | | | | | | | | The input_device pointer is not refcounted, which means the device may disappear while packets are queued, causing a crash when ifb passes packets with a stale skb->dev pointer to netif_rx(). Fix by storing the interface index instead and do a lookup where neccessary. Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: sch_htb/sch_hfsc: fix oops in qlen_notifyPatrick McHardy2007-03-27
| | | | | | | | | | During both HTB and HFSC class deletion the class is removed from the class hash before calling qdisc_tree_decrease_qlen. This makes the ->get operation in qdisc_tree_decrease_qlen fail, so it passes a NULL pointer to ->qlen_notify, causing an oops. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Remove dead net/sched/Makefile entry for sch_hpfq.o.Robert P. J. Day2007-03-26
| | | | | | | | Remove the worthless net/sched/Makefile entry for the non-existent source file sch_hpfq.c. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: cls_basic: fix NULL pointer dereferencePatrick McHardy2007-03-25
| | | | | | | | | | | | cls_basic doesn't allocate tp->root before it is linked into the active classifier list, resulting in a NULL pointer dereference when packets hit the classifier before its ->change function is called. Reported by Chris Madden <chris@reflexsecurity.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: fix up misplaced inlines.Dave Jones2007-03-22
| | | | | | | | | Turning up the warnings on gcc makes it emit warnings about the placement of 'inline' in function declarations. Here's everything that was under net/ Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] remove many unneeded #includes of sched.hTim Schmielau2007-02-14
| | | | | | | | | | | | | | | | | | | | | | | | After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [NET_SCHED]: sch_hfsc: replace ASSERT macro by WARN_ONPatrick McHardy2007-02-13
| | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] mark struct file_operations const 8Arjan van de Ven2007-02-12
| | | | | | | | | | | Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [NET] SCHED: Fix whitespace errors.YOSHIFUJI Hideaki2007-02-11
| | | | | Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NETFILTER]: {ip,ip6}_tables: use struct xt_table instead of redefined ↵Jan Engelhardt2007-02-08
| | | | | | | | structure names Signed-off-by: Jan Engelhardt <jengelh@gmx.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: Add UDPLITE support in a few missing spotsPatrick McHardy2007-02-08
| | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET]: user of the jiffies rounding code: NetworkingArjan van de Ven2007-02-08
| | | | | | | | | | | | | | | | | | | | This patch introduces users of the round_jiffies() function in the networking code. These timers all were of the "about once a second" or "about once every X seconds" variety and several showed up in the "what wakes the cpu up" profiles that the tickless patches provide. Some timers are highly dynamic based on network load; but even on low activity systems they still show up so the rounding is done only in cases of low activity, allowing higher frequency timers in the high activity case. The various hardware watchdogs are an obvious case; they run every 2 seconds but aren't otherwise specific of exactly when they need to run. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED] sch_prio: class statistics printing enabledJarek Poplawski2007-02-08
| | | | | | | | | | This patch adds a dump_stats callback to enable printing of basic statistics of prio classes. (With help of Patrick McHardy). Signed-off-by: Jarek Poplawski <jarkao2@o2.pl> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: act_ipt: fix regression in ipt actionPatrick McHardy2007-02-02
| | | | | | | | | | | | | | The x_tables patch broke target module autoloading in the ipt action by replacing the ipt_find_target call (which does autoloading) by xt_find_target (which doesn't do autoloading). Additionally xt_find_target may return ERR_PTR values in case of an error, which are not handled. Use xt_request_find_target, which does both autoloading and ERR_PTR handling properly. Also don't forget to drop the target module reference again when xt_check_target fails. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED] sch_htb: turn intermediate classes into leavesJarek Poplawski2006-12-08
| | | | | | | | - turn intermediate classes into leaves again when their last child is deleted (struct htb_class changed) Signed-off-by: Jarek Poplawski <jarkao2@o2.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED] sch_cbq: deactivating when grafting, purging etc.Jarek Poplawski2006-12-08
| | | | | | | | | | | | | | - deactivating of active classes when q.qlen drops to zero (cbq_drop) - a redundant instruction removed from cbq_deactivate_class PS: probably htb_deactivate in htb_delete and cbq_deactivate_class in cbq_delete are also redundant now. Signed-off-by: Jarek Poplawski <jarkao2@o2.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: cls_fw: fix NULL pointer dereferencePatrick McHardy2006-12-06
| | | | | | | | | | | | | When the first fw classifier is initialized, there is a small window between the ->init() and ->change() calls, during which the classifier is active but not entirely set up and tp->root is still NULL (->init() does nothing). When a packet is queued during this window a NULL pointer dereference occurs in fw_classify() when trying to dereference head->mask; Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PKT_SCHED] act_gact: division by zeroKim Nordlund2006-12-03
| | | | | | | | Not returning -EINVAL, because someone might want to use the value zero in some future gact_prob algorithm? Signed-off-by: Kim Nordlund <kim.nordlund@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: policer: restore compatibility with old iproute binariesPatrick McHardy2006-12-03
| | | | | | | | | | | | | | The tc actions increased the size of struct tc_police, which broke compatibility with old iproute binaries since both the act_police and the old NET_CLS_POLICE code check for an exact size match. Since the new members are not even used, the simple fix is to also accept the size of the old structure. Dumping is not affected since old userspace will receive a bigger structure, which is handled fine. Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PKT_SCHED]: Remove unused exports.Adrian Bunk2006-12-03
| | | | | | | | | | | This patch removes the following unused EXPORT_SYMBOL's: - sch_api.c: qdisc_lookup - sch_generic.c: __netdev_watchdog_up - sch_generic.c: noop_qdisc_ops - sch_generic.c: qdisc_alloc Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: Fix endless loops (part 5): netem/tbf/hfsc ->requeue failuresPatrick McHardy2006-12-03
| | | | | | | | | | | | When peeking at the next packet in a child qdisc by calling dequeue/requeue, the upper qdisc qlen counter may get out of sync in case the requeue fails. The qdisc and the child qdisc both have their counter decremented, but since no packet is given to the upper qdisc it won't decrement its counter itself. requeue should not fail, so this is mostly for "correctness". Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: Fix endless loops (part 4): HTBPatrick McHardy2006-12-03
| | | | | | | | Convert HTB to use qdisc_tree_decrease_len() and add a callback for deactivating a class when its child queue becomes empty. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: Fix endless loops (part 3): HFSCPatrick McHardy2006-12-03
| | | | | | | | | | | | | Convert HFSC to use qdisc_tree_decrease_len() and add a callback for deactivating a class when its child queue becomes empty. All queue purging goes through hfsc_purge_queue(), which is used in three cases: grafting, class creation (when a leaf class is turned into an intermediate class by attaching a new class) and class deletion. In all cases qdisc_tree_decrease_len() is needed. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* [NET_SCHED]: Fix endless loops (part 2): "simple" qdiscsPatrick McHardy2006-12-03
| | | | | | | | | | | | Convert the "simple" qdiscs to use qdisc_tree_decrease_qlen() where necessary: - all graft operations - destruction of old child qdiscs in prio, red and tbf change operation - purging of queue in sfq change operation Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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