linux-toradex.git/include/net/sch_generic.h, branch v3.3.5

net: Make qdisc_skb_cb upper size bound explicit.

2012-02-09T18:50:34+00:00

Just like skb->cb[], so that qdisc_skb_cb can be encapsulated inside
of other data structures.

This is intended to be used by IPoIB so that it can remember
addressing information stored at hard_header_ops->create() time that
it can fetch when the packet gets to the transmit routine.

Signed-off-by: David S. Miller

net: sch_generic remove redundant use of

2011-10-31T23:32:25+00:00

This file has modular references, but they are limited to
those which are covered by the simple "struct module;"
declaration used in dozens of other places.  In fact that
declaration is already there (just outside of the context
of this commit) so simply remove the include line.

Signed-off-by: Paul Gortmaker

net: constify skbuff and Qdisc elements

2011-10-20T21:45:43+00:00

Preliminary patch before tcp constification

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

net: sched: constify tcf_proto and tc_action

2011-07-06T09:52:16+00:00

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

net_sched: fix THROTTLED/RUNNING race

2011-03-24T07:13:14+00:00

commit fd245a4adb52 (net_sched: move TCQ_F_THROTTLED flag)
added a race.

qdisc_watchdog() is run from softirq, so special care should be taken or
we can lose one state transition (THROTTLED/RUNNING)

Prior to fd245a4adb52, we were manipulating q->flags (qdisc->flags &=
~TCQ_F_THROTTLED;) and this manipulation could only race with
qdisc_warn_nonwc().

Since we want to avoid atomic ops in qdisc fast path - it was the
meaning of commit 371121057607e (QDISC_STATE_RUNNING dont need atomic
bit ops) - fix is to move THROTTLE bit into 'state' field, this one
being manipulated with SMP and IRQ safe operations.

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

2011-03-04T05:27:42+00:00

Conflicts:
	drivers/net/bnx2x/bnx2x.h

net_sched: reduce fifo qdisc size

2011-03-03T19:10:02+00:00

Because of various alignements [SLUB / qdisc], we use 512 bytes of
memory for one {p|b}fifo qdisc, instead of 256 bytes on 64bit arches and
192 bytes on 32bit ones.

Move the "u32 limit" inside "struct Qdisc" (no impact on other qdiscs)

Change qdisc_alloc(), first trying a regular allocation before an
oversized one.

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

net_sched: long word align struct qdisc_skb_cb data

2011-02-23T22:17:02+00:00

netem_skb_cb() does :

return (struct netem_skb_cb *)qdisc_skb_cb(skb)->data;

Unfortunatly struct qdisc_skb_cb data is not long word aligned, so
access to psched_time_t time_to_send uses a non aligned access.

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

2011-01-24T22:09:35+00:00

Conflicts:
	net/sched/sch_hfsc.c
	net/sched/sch_htb.c
	net/sched/sch_tbf.c

net_sched: accurate bytes/packets stats/rates

2011-01-21T07:31:33+00:00

In commit 44b8288308ac9d (net_sched: pfifo_head_drop problem), we fixed
a problem with pfifo_head drops that incorrectly decreased
sch->bstats.bytes and sch->bstats.packets

Several qdiscs (CHOKe, SFQ, pfifo_head, ...) are able to drop a
previously enqueued packet, and bstats cannot be changed, so
bstats/rates are not accurate (over estimated)

This patch changes the qdisc_bstats updates to be done at dequeue() time
instead of enqueue() time. bstats counters no longer account for dropped
frames, and rates are more correct, since enqueue() bursts dont have
effect on dequeue() rate.

Signed-off-by: Eric Dumazet 
Acked-by: Stephen Hemminger 
Signed-off-by: David S. Miller