[PATCH V3 2/4] bond mode 4: do not ignore multicast
From: Eric Kinzie <hidden>
Date: 2016-03-01 17:32:24
Subsystem:
bonding driver, networking drivers, the rest · Maintainers:
Jay Vosburgh, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Eric Kinzie <redacted>
The bonding PMD in mode 4 puts all enslaved interfaces into promiscuous
mode in order to receive LACPDUs and must filter unwanted packets
after the traffic has been "collected". Allow broadcast and multicast
through so that ARP and IPv6 neighbor discovery continue to work.
Fixes: 46fb43683679 ("bond: add mode 4")
Signed-off-by: Eric Kinzie <redacted>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Declan Doherty <redacted>
---
app/test/test_link_bonding_mode4.c | 7 +++++--
drivers/net/bonding/rte_eth_bond_pmd.c | 1 +
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/app/test/test_link_bonding_mode4.c b/app/test/test_link_bonding_mode4.c
index 713368d..31640cd 100644
--- a/app/test/test_link_bonding_mode4.c
+++ b/app/test/test_link_bonding_mode4.c@@ -747,8 +747,11 @@ test_mode4_rx(void) rte_eth_macaddr_get(test_params.bonded_port_id, &bonded_mac); ether_addr_copy(&bonded_mac, &dst_mac); - /* Assert that dst address is not bonding address */ - dst_mac.addr_bytes[0]++; + /* Assert that dst address is not bonding address. Do not set the + * least significant bit of the zero byte as this would create a + * multicast address. + */ + dst_mac.addr_bytes[0] += 2; /* First try with promiscuous mode enabled. * Add 2 packets to each slave. First with bonding MAC address, second with
diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c
index b63c886..011150a 100644
--- a/drivers/net/bonding/rte_eth_bond_pmd.c
+++ b/drivers/net/bonding/rte_eth_bond_pmd.c@@ -171,6 +171,7 @@ bond_ethdev_rx_burst_8023ad(void *queue, struct rte_mbuf **bufs, * mode and packet address does not match. */ if (unlikely(hdr->ether_type == ether_type_slow_be || !collecting || (!promisc && + !is_multicast_ether_addr(&hdr->d_addr) && !is_same_ether_addr(&bond_mac, &hdr->d_addr)))) { if (hdr->ether_type == ether_type_slow_be) {
--
2.1.4