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dpif: Pass flow parameter to dpif_execute().

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All the callers of the function already have a copy of the extracted
flow in their stack (or a few frames before).

This is useful for different resons:
* It forces the callers to also call flow_extract() on the packet, which
  is necessary to initialize the l2,l3,l4 pointers.
* It will be used in the userspace datapath to generate the RSS hash by
  a following commit
* It can be used by the userspace connection tracker to avoid extracting
  the l3 type again.

Signed-off-by: Daniele Di Proietto <diproiettod@vmware.com>
Acked-by: Ben Pfaff <blp@ovn.org>
This commit is contained in:
Daniele Di Proietto
2016-05-17 18:26:02 -07:00
parent 362ad4ba31
commit 1cceb31bc1
4 changed files with 15 additions and 1 deletions
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4
lib/dpif.c
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@@ -1079,6 +1079,7 @@ dpif_flow_dump_next(struct dpif_flow_dump_thread *thread,
struct dpif_execute_helper_aux {
struct dpif *dpif;
const struct flow *flow;
int error;
};
@@ -1124,6 +1125,7 @@ dpif_execute_helper_cb(void *aux_, struct dp_packet_batch *packets_,
}
execute.packet = packet;
execute.flow = aux->flow;
execute.needs_help = false;
execute.probe = false;
execute.mtu = 0;
@@ -1158,7 +1160,7 @@ dpif_execute_helper_cb(void *aux_, struct dp_packet_batch *packets_,
static int
dpif_execute_with_help(struct dpif *dpif, struct dpif_execute *execute)
{
struct dpif_execute_helper_aux aux = {dpif, 0};
struct dpif_execute_helper_aux aux = {dpif, execute->flow, 0};
struct dp_packet_batch pb;
COVERAGE_INC(dpif_execute_with_help);