[dpdk-stable] [PATCH v2] net/bonding: fix lacp negotiation failed

[dpdk-stable] [PATCH v2] net/bonding: fix lacp negotiation failed

[Liang Zhang]

When monitor(port-mirroring) traffic from other lacp port-channel,
rx_machine_update may recieving other lacp negotiation packets.
Thus bond mode 4 will negotiation failed.

Fixes: 112891cd27e5 ("net/bonding: add dedicated HW queues for LACP control")
Cc: stable@dpdk.org

Signed-off-by: Liang Zhang <zhangliang@bigo.sg>
---
 drivers/net/bonding/rte_eth_bond_8023ad.c         | 12 ++++++++++--
 drivers/net/bonding/rte_eth_bond_8023ad_private.h |  1 +
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/net/bonding/rte_eth_bond_8023ad.c b/drivers/net/bonding/rte_eth_bond_8023ad.c
index dd847c6..dac23ac 100644
--- a/drivers/net/bonding/rte_eth_bond_8023ad.c
+++ b/drivers/net/bonding/rte_eth_bond_8023ad.c
@@ -784,13 +784,20 @@ static void
 rx_machine_update(struct bond_dev_private *internals, uint8_t slave_id,
 		struct rte_mbuf *lacp_pkt) {
 	struct lacpdu_header *lacp;
+	struct lacpdu_actor_partner_params *partner;
 
 	if (lacp_pkt != NULL) {
 		lacp = rte_pktmbuf_mtod(lacp_pkt, struct lacpdu_header *);
 		RTE_ASSERT(lacp->lacpdu.subtype == SLOW_SUBTYPE_LACP);
 
-		/* This is LACP frame so pass it to rx_machine */
-		rx_machine(internals, slave_id, &lacp->lacpdu);
+		partner = &lacp->lacpdu.partner;
+		if (is_same_ether_addr(&partner->port_params.system,
+			&internals->mode4.mac_addr)) {
+			/* This LACP frame is sending to the bonding port
+			 * so pass it to rx_machine.
+			 */
+			rx_machine(internals, slave_id, &lacp->lacpdu);
+		}
 		rte_pktmbuf_free(lacp_pkt);
 	} else
 		rx_machine(internals, slave_id, NULL);
@@ -1165,6 +1172,7 @@ bond_mode_8023ad_start(struct rte_eth_dev *bond_dev)
 	struct mode8023ad_private *mode4 = &internals->mode4;
 	static const uint64_t us = BOND_MODE_8023AX_UPDATE_TIMEOUT_MS * 1000;
 
+	rte_eth_macaddr_get(internals->port_id, &mode4->mac_addr);
 	if (mode4->slowrx_cb)
 		return rte_eal_alarm_set(us, &bond_mode_8023ad_ext_periodic_cb,
 					 bond_dev);
diff --git a/drivers/net/bonding/rte_eth_bond_8023ad_private.h b/drivers/net/bonding/rte_eth_bond_8023ad_private.h
index c51426b..f91902e 100644
--- a/drivers/net/bonding/rte_eth_bond_8023ad_private.h
+++ b/drivers/net/bonding/rte_eth_bond_8023ad_private.h
@@ -150,6 +150,7 @@ struct mode8023ad_private {
 	uint64_t update_timeout_us;
 	rte_eth_bond_8023ad_ext_slowrx_fn slowrx_cb;
 	uint8_t external_sm;
+	struct ether_addr mac_addr;
 
 	struct rte_eth_link slave_link;
 	/***< slave link properties */
-- 
2.7.4

Re: [dpdk-stable] [dpdk-dev] [PATCH v2] net/bonding: fix lacp negotiation failed

[Ferruh Yigit]

On 3/21/2019 10:22 AM, Liang Zhang wrote:
> When monitor(port-mirroring) traffic from other lacp port-channel,
> rx_machine_update may recieving other lacp negotiation packets.
> Thus bond mode 4 will negotiation failed.
> 
> Fixes: 112891cd27e5 ("net/bonding: add dedicated HW queues for LACP control")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Liang Zhang <zhangliang@bigo.sg>

Carrying the ack from previous version:

Acked-by: Chas Williams <chas3@att.com>

Applied to dpdk-next-net/master, thanks.

Re: [dpdk-stable] [dpdk-dev] [PATCH V2] net/bonding: fix lacp negotiation failed

[Ferruh Yigit]

On 7/11/2020 2:20 AM, Wei Hu (Xavier) wrote:

> 
> On 2020/7/10 11:29, luyicai wrote:
>> From: Yicai Lu <luyicai@huawei.com>
>>
>> When two host is connected directly without any devices like switch,
>> rx_machine_update would recieving partner lacp negotiation packets,
>> and partner's port mac is filled with zeros in this packet,
>> which is different with internal's mode4 mac. So in this situation,
>> it would never go rx_machine branch and then execute mac swap for negotiation!
>> Thus bond mode 4 will negotiation failed.
>>
>> Fixes: 56cbc0817399 ("net/bonding: fix LACP negotiation")
>> Cc: stable@dpdk.org
>>
>> Signed-off-by: luyicai <luyicai@huawei.com>
>
> Reviewed-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
> 
Applied to dpdk-next-net/master, thanks.