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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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lib/learning-switch.c
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@@ -419,7 +419,7 @@ process_packet_in(struct lswitch *sw, struct rconn *rconn,
pkt_ofs = offsetof(struct ofp_packet_in, data);
pkt_len = ntohs(opi->header.length) - pkt_ofs;
ofpbuf_use_const(&pkt, opi->data, pkt_len);
flow_extract(&pkt, 0, in_port, &flow);
flow_extract(&pkt, 0, 0, in_port, &flow);
/* Choose output port. */
out_port = lswitch_choose_destination(sw, &flow);