linux-toradex.git/include/net/pkt_sched.h, branch v2.6.20.7

[PKT_SCHED]: Fix regression in PSCHED_TADD{,2}.

2006-07-24T19:44:23+00:00

In PSCHED_TADD and PSCHED_TADD2, if delta is less than tv.tv_usec (so,
less than USEC_PER_SEC too) then tv_res will be smaller than tv. The
affectation "(tv_res).tv_usec = __delta;" is wrong.  The fix is to
revert to the original code before
4ee303dfeac6451b402e3d8512723d3a0f861857 and change the 'if' in
'while'.

[Shuya MAEDA: "while (__delta >= USEC_PER_SEC){ ... }" instead of
"while (__delta > USEC_PER_SEC){ ... }"]

Signed-off-by: Guillaume Chazarain 
Signed-off-by: David S. Miller

[PKT_SCHED]: PSCHED_TADD() and PSCHED_TADD2() can result,tv_usec >= 1000000

2006-06-29T23:58:01+00:00

Signed-off-by: Shuya MAEDA 
Signed-off-by: David S. Miller

[NET]: Prevent multiple qdisc runs

2006-06-20T06:57:59+00:00

Having two or more qdisc_run's contend against each other is bad because
it can induce packet reordering if the packets have to be requeued.  It
appears that this is an unintended consequence of relinquinshing the queue
lock while transmitting.  That in turn is needed for devices that spend a
lot of time in their transmit routine.

There are no advantages to be had as devices with queues are inherently
single-threaded (the loopback device is not but then it doesn't have a
queue).

Even if you were to add a queue to a parallel virtual device (e.g., bolt
a tbf filter in front of an ipip tunnel device), you would still want to
process the queue in sequence to ensure that the packets are ordered
correctly.

The solution here is to steal a bit from net_device to prevent this.

BTW, as qdisc_restart is no longer used by anyone as a module inside the
kernel (IIRC it used to with netif_wake_queue), I have not exported the
new __qdisc_run function.

Signed-off-by: Herbert Xu 
Signed-off-by: David S. Miller

[PKT_SCHED]: Use USEC_PER_SEC

2006-01-09T22:16:05+00:00

Signed-off-by: Patrick McHardy 
Signed-off-by: David S. Miller

[PKT_SCHED]: Cleanup qdisc creation and alignment macros

2005-07-05T21:15:09+00:00

Adds qdisc_alloc() to share code between qdisc_create()
and qdisc_create_dflt(). Hides the qdisc alignment behind
macros and makes use of them.

Signed-off-by: Thomas Graf 
Signed-off-by: David S. Miller

[PKT_SCHED]: Move sch_generic.c prototypes to correct header file

2005-07-05T21:14:30+00:00

Signed-off-by: Thomas Graf 
Signed-off-by: David S. Miller

[PKT_SCHED]: Fix range in PSCHED_TDIFF_SAFE to 0..bound

2005-05-03T21:41:18+00:00

Signed-off-by: Patrick McHardy 
Signed-off-by: David S. Miller

[PKT_SCHED]: Fix range in psched_tod_diff() to 0..bound

2005-04-28T19:14:37+00:00

Signed-off-by: Nicolas Dichtel 
Signed-off-by: Thomas Graf 
Signed-off-by: David S. Miller

Linux-2.6.12-rc2

2005-04-16T22:20:36+00:00

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!