path: root/include/net/pkt_sched.h
diff options
authorDavid S. Miller <davem@davemloft.net>2008-07-17 01:56:23 -0700
committerDavid S. Miller <davem@davemloft.net>2008-07-17 19:21:07 -0700
commitfd2ea0a79faad824258af5dcec1927aa24d81c16 (patch)
tree644fd4ce92227cc319c7a54c63ea07a96b8c6b8d /include/net/pkt_sched.h
parent24344d2600108b9b79a60c0e4c43b3c499856d14 (diff)
net: Use queue aware tests throughout.
This effectively "flips the switch" by making the core networking and multiqueue-aware drivers use the new TX multiqueue structures. Non-multiqueue drivers need no changes. The interfaces they use such as netif_stop_queue() degenerate into an operation on TX queue zero. So everything "just works" for them. Code that really wants to do "X" to all TX queues now invokes a routine that does so, such as netif_tx_wake_all_queues(), netif_tx_stop_all_queues(), etc. pktgen and netpoll required a little bit more surgery than the others. In particular the pktgen changes, whilst functional, could be largely improved. The initial check in pktgen_xmit() will sometimes check the wrong queue, which is mostly harmless. The thing to do is probably to invoke fill_packet() earlier. The bulk of the netpoll changes is to make the code operate solely on the TX queue indicated by by the SKB queue mapping. Setting of the SKB queue mapping is entirely confined inside of net/core/dev.c:dev_pick_tx(). If we end up needing any kind of special semantics (drops, for example) it will be implemented here. Finally, we now have a "real_num_tx_queues" which is where the driver indicates how many TX queues are actually active. With IGB changes from Jeff Kirsher. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/pkt_sched.h')
1 files changed, 1 insertions, 3 deletions
diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index d58c1a5eb84..cb952781560 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -88,9 +88,7 @@ extern void __qdisc_run(struct netdev_queue *txq);
static inline void qdisc_run(struct netdev_queue *txq)
- struct net_device *dev = txq->dev;
- if (!netif_queue_stopped(dev) &&
+ if (!netif_tx_queue_stopped(txq) &&
!test_and_set_bit(__QUEUE_STATE_QDISC_RUNNING, &txq->state))