[dpdk-stable] patch 'net/tap: fix some flow collision' has been queued to stable release 17.05.1

[Yuanhan Liu]

Hi,

FYI, your patch has been queued to stable release 17.05.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 06/22/17. So please
shout if anyone has objections.

Thanks.

	--yliu

---
>From 0bd27f8dd39ce19ea60a07eceea584f678b13bca Mon Sep 17 00:00:00 2001
From: Pascal Mazon <pascal.mazon at 6wind.com>
Date: Mon, 22 May 2017 13:19:53 +0200
Subject: [PATCH] net/tap: fix some flow collision

[ upstream commit f96fe1ab35b74b1e0914bc8a99aac633c5b15807 ]

The following two flow rules (testpmd syntax) should not collide:
flow create 0 priority 1 ingress pattern eth / ipv4 / end actions drop / end
flow create 0 priority 1 ingress pattern eth / ipv6 / end actions drop / end

But the eth_type in the associated TC rule was set to either "ip" or
"ipv6".  For TC, they could thus not have the same priority.

Use ETH_P_ALL only in the TC message to make sure those rules can
coexist.

Fixes: de96fe68ae95 ("net/tap: add basic flow API patterns and actions")

Signed-off-by: Pascal Mazon <pascal.mazon at 6wind.com>
---
 drivers/net/tap/tap_flow.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/net/tap/tap_flow.c b/drivers/net/tap/tap_flow.c
index cf1c8a2..a0dd504 100644
--- a/drivers/net/tap/tap_flow.c
+++ b/drivers/net/tap/tap_flow.c
@@ -401,9 +401,6 @@ tap_flow_create_eth(const struct rte_flow_item *item, void *data)
 	if (!flow)
 		return 0;
 	msg = &flow->msg;
-	if (spec->type & mask->type)
-		msg->t.tcm_info = TC_H_MAKE(msg->t.tcm_info,
-					    (spec->type & mask->type));
 	if (!is_zero_ether_addr(&spec->dst)) {
 		nlattr_add(&msg->nh, TCA_FLOWER_KEY_ETH_DST, ETHER_ADDR_LEN,
 			   &spec->dst.addr_bytes);
@@ -508,8 +505,6 @@ tap_flow_create_ipv4(const struct rte_flow_item *item, void *data)
 	msg = &flow->msg;
 	if (!info->eth_type)
 		info->eth_type = htons(ETH_P_IP);
-	if (!info->vlan)
-		msg->t.tcm_info = TC_H_MAKE(msg->t.tcm_info, htons(ETH_P_IP));
 	if (!spec)
 		return 0;
 	if (spec->hdr.dst_addr) {
@@ -566,8 +561,6 @@ tap_flow_create_ipv6(const struct rte_flow_item *item, void *data)
 	msg = &flow->msg;
 	if (!info->eth_type)
 		info->eth_type = htons(ETH_P_IPV6);
-	if (!info->vlan)
-		msg->t.tcm_info = TC_H_MAKE(msg->t.tcm_info, htons(ETH_P_IPV6));
 	if (!spec)
 		return 0;
 	if (memcmp(spec->hdr.dst_addr, empty_addr, 16)) {
-- 
2.7.4