linux-toradex.git/net/sched/sch_multiq.c, branch v2.6.30 Linux kernel for Apalis and Colibri modules pkt_sched: sch_multiq: Change errno on non-multiqueue devices use. 2009-02-10T08:11:21+00:00 Jarek Poplawski jarkao2@gmail.com 2009-02-10T08:11:21+00:00 149490f131ab532a3b9e8806249a0e730994cdf6 Current "RTNETLINK answers: Invalid argument" warning, while trying to add multiq qdisc to non-multiqueue device, isn't very helpful and some of these devs can be changed btw., so let's use a better errno. With feedback from Stephen Hemminger <shemminger@vyatta.com> Reported-by: Badalian Vyacheslav <slavon@bigtelecom.ru> Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Current "RTNETLINK answers: Invalid argument" warning, while trying to
add multiq qdisc to non-multiqueue device, isn't very helpful and some
of these devs can be changed btw., so let's use a better errno.

With feedback from Stephen Hemminger <shemminger@vyatta.com>

Reported-by: Badalian Vyacheslav <slavon@bigtelecom.ru>
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
pkt_sched: remove unnecessary xchg() in packet schedulers 2008-11-20T12:11:36+00:00 Patrick McHardy kaber@trash.net 2008-11-20T12:11:36+00:00 b94c8afcba3ae6584653b98e315446ea83be6ea5 The use of xchg() hasn't been necessary since 2.2.something when proper locking was added to packet schedulers. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net> 
The use of xchg() hasn't been necessary since 2.2.something when proper
locking was added to packet schedulers.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
pkt_sched: Remove qdisc->ops->requeue() etc. 2008-11-14T06:56:30+00:00 Jarek Poplawski jarkao2@gmail.com 2008-11-14T06:56:30+00:00 f30ab418a1d3c5a8b83493e7d70d6876a74aa0ce After implementing qdisc->ops->peek() and changing sch_netem into classless qdisc there are no more qdisc->ops->requeue() users. This patch removes this method with its wrappers (qdisc_requeue()), and also unused qdisc->requeue structure. There are a few minor fixes of warnings (htb_enqueue()) and comments btw. The idea to kill ->requeue() and a similar patch were first developed by David S. Miller. Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
After implementing qdisc->ops->peek() and changing sch_netem into
classless qdisc there are no more qdisc->ops->requeue() users. This
patch removes this method with its wrappers (qdisc_requeue()), and
also unused qdisc->requeue structure. There are a few minor fixes of
warnings (htb_enqueue()) and comments btw.

The idea to kill ->requeue() and a similar patch were first developed
by David S. Miller.

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
pkt_sched: Add qdisc->ops->peek() implementation. 2008-10-31T07:45:55+00:00 Jarek Poplawski jarkao2@gmail.com 2008-10-31T07:45:55+00:00 8e3af97899db433111287e07d5105189f56fe191 Add qdisc->ops->peek() implementation for work-conserving qdiscs. With feedback from Patrick McHardy. Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Add qdisc->ops->peek() implementation for work-conserving qdiscs.
With feedback from Patrick McHardy.

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
multiq: requeue should rewind the current_band 2008-09-21T05:07:34+00:00 Alexander Duyck alexander.h.duyck@intel.com 2008-09-21T05:07:34+00:00 a574420ff46cff0245e6b0fce2e961aa2717743d Currently dequeueing a packet and requeueing the same packet will cause a different packet to be pulled on the next dequeue. This change forces requeue to rewind the current_band. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Currently dequeueing a packet and requeueing the same packet will cause a
different packet to be pulled on the next dequeue.  This change forces
requeue to rewind the current_band.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
multiq: Further multiqueue cleanup 2008-09-13T00:57:23+00:00 Alexander Duyck alexander.h.duyck@intel.com 2008-09-13T00:57:23+00:00 f07d1501292b3b0d3276ee0e537005526a45e242 This patch resolves a few issues found with multiq including wording suggestions and a problem seen in the allocation of queues. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
This patch resolves a few issues found with multiq including wording
suggestions and a problem seen in the allocation of queues.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
pkt_sched: Add multiqueue scheduler support 2008-09-12T23:29:34+00:00 Alexander Duyck alexander.h.duyck@intel.com 2008-09-12T23:29:34+00:00 92651940ab00dbe64722e908f70d816713d677b7 This patch is intended to add a qdisc to support the new tx multiqueue architecture by providing a band for each hardware queue. By doing this it is possible to support a different qdisc per physical hardware queue. This qdisc uses the skb->queue_mapping to select which band to place the traffic onto. It then uses a round robin w/ a check to see if the subqueue is stopped to determine which band to dequeue the packet from. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
This patch is intended to add a qdisc to support the new tx multiqueue
architecture by providing a band for each hardware queue.  By doing
this it is possible to support a different qdisc per physical hardware
queue.

This qdisc uses the skb->queue_mapping to select which band to place
the traffic onto.  It then uses a round robin w/ a check to see if the
subqueue is stopped to determine which band to dequeue the packet from.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>