Re: [dpdk-dev] [PATCH v4] net/ixgbe: fix filter parser error in L2 tunnel

["Peng, Yuan" <yuan.peng@intel.com>]

Tested-by: Peng Yuan <yuan.peng@intel.com>

- Tested Branch: dpdk-master
- Tested Commit: commit 6fb00f8baefa03b9cfd1b2dfc1787258b8459601
- OS: 4.8.6-300.fc25.x86_64
- GCC: gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1)
- CPU: Intel(R) Xeon(R) CPU D-1541 @ 2.10GHz
- NIC: X552/X557-AT 10GBASE-T [8086:15ad]
- Default x86_64-native-linuxapp-gcc configuration
- Prerequisites:
- Total 1 cases, 1 passed, 0 failed

Hardware:
dut: 10.240.176.192
 tester: 10.240.176.191
 X552/X557-AT 10g*2

Test steps:

Bind pf to igb_uio:
./usertools/dpdk-devbind.py -b igb_uio 03:00.0

add two vfs on dpdk pf, then bind the vfs to vfio-pci:
 echo 2 >/sys/bus/pci/devices/0000:03:00.0/max_vfs
 ./usertools/dpdk-devbind.py -b vfio-pci 03:10.0 03:10.2

Start testpmd:
./x86_64-native-linuxapp-gcc/app/testpmd -c 1f -n 4 -m 1024 -w 03:00.0 --file-prefix=pf - -i --rxq=4 --txq=4 
testpmd> set fwd rxonly
testpmd> set verbose 1
testpmd> start
testpmd> port config 0 l2-tunnel E-tag enable
testpmd> E-tag set forwarding on port 0

./x86_64-native-linuxapp-gcc/app/testpmd -c 0xf0 -n 4 -w 03:10.0 --file-prefix=vf0 -m 1024 - -i --rxq=4 --txq=4 --disable-rss 
testpmd> set fwd rxonly
testpmd> set verbose 1
testpmd> start
./x86_64-native-linuxapp-gcc/app/testpmd -c 0xf00 -n 4 -w 03:10.2 --file-prefix=vf1 -m 1024 - -i --rxq=4 --txq=4 --disable-rss  
testpmd> set fwd rxonly
testpmd> set verbose 1
testpmd> start

1. create filter rules,
testpmd> flow create 0 ingress pattern e_tag grp_ecid_b is 0x1309 / end actions vf id 0 / end  
Flow rule #0 created  
testpmd> flow create 0 ingress pattern e_tag grp_ecid_b is 0x1308 / end actions vf id 1 / end  
Flow rule #1 created
testpmd> flow create 0 ingress pattern e_tag grp_ecid_b is 0x1307 / end actions pf / end
Flow rule #2 created

2. send packets:
pkt1 = Ether(dst="00:11:22:33:44:55")/Dot1BR(GRP=0x1, ECIDbase=0x309)/Raw('x' * 20)
pkt2 = Ether(dst="00:11:22:33:44:55")/Dot1BR(GRP=0x1, ECIDbase=0x308)/Raw('x' * 20)
pkt3 = Ether(dst="00:11:22:33:44:55")/Dot1BR(GRP=0x1, ECIDbase=0x307)/Raw('x' * 20)
pkt4 = Ether(dst="00:11:22:33:44:55")/Dot1BR(GRP=0x2, ECIDbase=0x309)/Raw('x' * 20)

verify pkt1 to vf0 queue0, pkt2 to vf1 queue0, pkt3 to pf queue 0, pkt4 can't received by pf and vfs.

-----Original Message-----
From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Wei Zhao
Sent: Friday, November 3, 2017 3:39 PM
To: dev@dpdk.org
Cc: Zhao1, Wei <wei.zhao1@intel.com>
Subject: [dpdk-dev] [PATCH v4] net/ixgbe: fix filter parser error in L2 tunnel

The action for L2 tunnel should be VF or PF, not QUEUE.

Fixes: 99e7003831c ("net/ixgbe: parse L2 tunnel filter")

Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
Acked-by: Wei Dai <wei.dai@intel.com>

---

v2:
-add vf id check.

v3:
-add action support for PF.

v4:
-fix action type check error
---
 drivers/net/ixgbe/ixgbe_flow.c | 29 ++++++++++++++++++++---------
 1 file changed, 20 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ixgbe/ixgbe_flow.c b/drivers/net/ixgbe/ixgbe_flow.c index 82fc705..8bbc8b9 100644
--- a/drivers/net/ixgbe/ixgbe_flow.c
+++ b/drivers/net/ixgbe/ixgbe_flow.c
@@ -1095,7 +1095,7 @@ ixgbe_parse_syn_filter(struct rte_eth_dev *dev,
  * The first not void item can be E_TAG.
  * The next not void item must be END.
  * action:
- * The first not void action should be QUEUE.
+ * The first not void action should be VF or PF.
  * The next not void action should be END.
  * pattern example:
  * ITEM		Spec			Mask
@@ -1106,7 +1106,8 @@ ixgbe_parse_syn_filter(struct rte_eth_dev *dev,
  * item->last should be NULL.
  */
 static int
-cons_parse_l2_tn_filter(const struct rte_flow_attr *attr,
+cons_parse_l2_tn_filter(struct rte_eth_dev *dev,
+			const struct rte_flow_attr *attr,
 			const struct rte_flow_item pattern[],
 			const struct rte_flow_action actions[],
 			struct rte_eth_l2_tunnel_conf *filter, @@ -1116,7 +1117,8 @@ cons_parse_l2_tn_filter(const struct rte_flow_attr *attr,
 	const struct rte_flow_item_e_tag *e_tag_spec;
 	const struct rte_flow_item_e_tag *e_tag_mask;
 	const struct rte_flow_action *act;
-	const struct rte_flow_action_queue *act_q;
+	const struct rte_flow_action_vf *act_vf;
+	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 
 	if (!pattern) {
 		rte_flow_error_set(error, EINVAL,
@@ -1224,9 +1226,10 @@ cons_parse_l2_tn_filter(const struct rte_flow_attr *attr,
 		return -rte_errno;
 	}
 
-	/* check if the first not void action is QUEUE. */
+	/* check if the first not void action is VF or PF. */
 	act = next_no_void_action(actions, NULL);
-	if (act->type != RTE_FLOW_ACTION_TYPE_QUEUE) {
+	if (act->type != RTE_FLOW_ACTION_TYPE_VF &&
+			act->type != RTE_FLOW_ACTION_TYPE_PF) {
 		memset(filter, 0, sizeof(struct rte_eth_l2_tunnel_conf));
 		rte_flow_error_set(error, EINVAL,
 			RTE_FLOW_ERROR_TYPE_ACTION,
@@ -1234,8 +1237,12 @@ cons_parse_l2_tn_filter(const struct rte_flow_attr *attr,
 		return -rte_errno;
 	}
 
-	act_q = (const struct rte_flow_action_queue *)act->conf;
-	filter->pool = act_q->index;
+	if (act->type == RTE_FLOW_ACTION_TYPE_VF) {
+		act_vf = (const struct rte_flow_action_vf *)act->conf;
+		filter->pool = act_vf->id;
+	} else {
+		filter->pool = pci_dev->max_vfs;
+	}
 
 	/* check if the next not void item is END */
 	act = next_no_void_action(actions, act); @@ -1260,8 +1267,10 @@ ixgbe_parse_l2_tn_filter(struct rte_eth_dev *dev,  {
 	int ret = 0;
 	struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
+	uint16_t vf_num;
 
-	ret = cons_parse_l2_tn_filter(attr, pattern,
+	ret = cons_parse_l2_tn_filter(dev, attr, pattern,
 				actions, l2_tn_filter, error);
 
 	if (hw->mac.type != ixgbe_mac_X550 &&
@@ -1274,7 +1283,9 @@ ixgbe_parse_l2_tn_filter(struct rte_eth_dev *dev,
 		return -rte_errno;
 	}
 
-	if (l2_tn_filter->pool >= dev->data->nb_rx_queues)
+	vf_num = pci_dev->max_vfs;
+
+	if (l2_tn_filter->pool > vf_num)
 		return -rte_errno;
 
 	return ret;
--
2.7.4