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net/tap: fix some flow collision

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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")
Cc: stable@dpdk.org

Signed-off-by: Pascal Mazon <pascal.mazon@6wind.com>
This commit is contained in:
Pascal Mazon 2017-05-22 13:19:53 +02:00 committed by Ferruh Yigit
parent fd0c3f136d
commit f96fe1ab35
1 changed files with 0 additions and 7 deletions
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7
drivers/net/tap/tap_flow.c
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@ -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)) {