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datapath: Convert kernel priority actions into match/set.

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Following patch adds skb-priority to flow key. So userspace will know
what was priority when packet arrived and we can remove the pop/reset
priority action. It's no longer necessary to have a special action for
pop that is based on the kernel remembering original skb->priority.
Userspace can just emit a set priority action with the original value.

Since the priority field is a match field with just a normal set action,
we can convert it into the new model for actions that are based on
matches.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>

Bug #7715
This commit is contained in:
Pravin B Shelar
2011-11-01 10:13:16 -07:00
parent 7f4ae491b0
commit abff858b5a
22 changed files with 159 additions and 114 deletions
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6
lib/dpif.c
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@@ -1129,9 +1129,9 @@ dpif_get_netflow_ids(const struct dpif *dpif,
}
/* Translates OpenFlow queue ID 'queue_id' (in host byte order) into a priority
* value for use in the OVS_ACTION_ATTR_SET_PRIORITY action. On success,
* returns 0 and stores the priority into '*priority'. On failure, returns a
* positive errno value and stores 0 into '*priority'. */
* value used for setting packet priority.
* On success, returns 0 and stores the priority into '*priority'.
* On failure, returns a positive errno value and stores 0 into '*priority'. */
int
dpif_queue_to_priority(const struct dpif *dpif, uint32_t queue_id,
uint32_t *priority)