netdev - [net-next PATCH 0/3] qdisc bulk dequeuing and utilizing delayed tailptr updates

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Message-ID: <20140902143254.1918.8419.stgit@dragon>
Date:	Tue, 02 Sep 2014 16:35:19 +0200
From:	Jesper Dangaard Brouer <brouer@...hat.com>
To:	Jesper Dangaard Brouer <brouer@...hat.com>,
	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Cc:	Florian Westphal <fw@...len.de>,
	Hannes Frederic Sowa <hannes@...essinduktion.org>,
	Daniel Borkmann <dborkman@...hat.com>
Subject: [net-next PATCH 0/3] qdisc bulk dequeuing and utilizing delayed
	tailptr updates

This patchset uses DaveM's recent API changes to dev_hard_start_xmit(),
from the qdisc layer, to implement dequeue bulking.

Open questions:

- For now set bulk limit to 8 packets, don't want to stress the driver
  avail ring_buffer space.

- We are not doing proper accounting for weight_p/quota in __qdisc_run(). Do we care?

- Is the (!skb->next) check in dequeue necessary?

- Do we need some checks in dev_requeue_skb() as we could be requeuing a SKB list?

 - Should we rename dequeue_skb() to dequeue_skb_list() ?


Based on top of:
 commit 364a9e93243d ("sock: deduplicate errqueue dequeue")

---

Jesper Dangaard Brouer (3):
      qdisc: sysctl to adjust bulk dequeue limit
      qdisc: bulk dequeue support for qdiscs with TCQ_F_ONETXQUEUE
      qdisc: adjustments for API allowing skb list xmits


 include/net/sch_generic.h  |    2 ++
 net/core/sysctl_net_core.c |    9 +++++++++
 net/sched/sch_generic.c    |   33 ++++++++++++++++++++++++++++-----
 3 files changed, 39 insertions(+), 5 deletions(-)

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