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Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/networking/multiqueue.txt | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/Documentation/networking/multiqueue.txt b/Documentation/networking/multiqueue.txt index 00b60cce2224..ea5a42e8f79f 100644 --- a/Documentation/networking/multiqueue.txt +++ b/Documentation/networking/multiqueue.txt | |||
@@ -58,9 +58,13 @@ software, so it's a straight round-robin qdisc. It uses the same syntax and | |||
58 | classification priomap that sch_prio uses, so it should be intuitive to | 58 | classification priomap that sch_prio uses, so it should be intuitive to |
59 | configure for people who've used sch_prio. | 59 | configure for people who've used sch_prio. |
60 | 60 | ||
61 | The PRIO qdisc naturally plugs into a multiqueue device. If PRIO has been | 61 | In order to utilitize the multiqueue features of the qdiscs, the network |
62 | built with NET_SCH_PRIO_MQ, then upon load, it will make sure the number of | 62 | device layer needs to enable multiple queue support. This can be done by |
63 | bands requested is equal to the number of queues on the hardware. If they | 63 | selecting NETDEVICES_MULTIQUEUE under Drivers. |
64 | |||
65 | The PRIO qdisc naturally plugs into a multiqueue device. If | ||
66 | NETDEVICES_MULTIQUEUE is selected, then on qdisc load, the number of | ||
67 | bands requested is compared to the number of queues on the hardware. If they | ||
64 | are equal, it sets a one-to-one mapping up between the queues and bands. If | 68 | are equal, it sets a one-to-one mapping up between the queues and bands. If |
65 | they're not equal, it will not load the qdisc. This is the same behavior | 69 | they're not equal, it will not load the qdisc. This is the same behavior |
66 | for RR. Once the association is made, any skb that is classified will have | 70 | for RR. Once the association is made, any skb that is classified will have |