Grygorii, Mugunthan, On Tue, Apr 5, 2016 at 8:11 AM, Mugunthan V N <mugunthanvnm@xxxxxx> wrote: > On Friday 01 April 2016 05:39 PM, Grygorii Strashko wrote: >> On 03/31/2016 10:52 AM, Yegor Yefremov wrote: >>> On Thu, Mar 31, 2016 at 8:37 AM, Mugunthan V N <mugunthanvnm@xxxxxx> wrote: >>>> On Thursday 31 March 2016 01:17 AM, Peter Korsgaard wrote: >>>>>>>>>> "Mugunthan" == Mugunthan V N <mugunthanvnm@xxxxxx> writes: >>>>> >>>>> Hi, >>>>> >>>>> > You had received these packets as tcpdump will enable promiscuous mode >>>>> > so that you receive all the packets from the wire. >>>>> >>>>> FYI, you can use the -p option to tcpdump to not put the interface into >>>>> promiscuous mode. >>>>> >>>> >>>> Thanks for the information Peter Korsgaard. >>>> >>>> Yegor, can you provide tcpdump using -p as well in Grygorii commands. >>> >>> Before VLAN configuration: >>> >>> # switch-config -d >>> cpsw hw version 1.12 (0) >>> 0 : type: vlan , vid = 1, untag_force = 0x3, reg_mcast = 0x3, >>> unreg_mcast = 0x0, member_list = 0x3 >>> 1 : type: mcast, vid = 1, addr = ff:ff:ff:ff:ff:ff, mcast_state = f, >>> no super, port_mask = 0x3 >>> 2 : type: ucast, vid = 1, addr = 74:6a:8f:00:16:12, ucast_type = >>> persistant, port_num = 0x0, Secure >>> 3 : type: vlan , vid = 0, untag_force = 0x7, reg_mcast = 0x0, >>> unreg_mcast = 0x0, member_list = 0x7 >>> 4 : type: mcast, vid = 1, addr = 01:00:5e:00:00:01, mcast_state = f, >>> no super, port_mask = 0x3 >>> 5 : type: vlan , vid = 2, untag_force = 0x5, reg_mcast = 0x5, >>> unreg_mcast = 0x0, member_list = 0x5 >>> 6 : type: mcast, vid = 2, addr = ff:ff:ff:ff:ff:ff, mcast_state = f, >>> no super, port_mask = 0x5 >>> 7 : type: ucast, vid = 2, addr = 74:6a:8f:00:16:13, ucast_type = >>> persistant, port_num = 0x0, Secure >>> 8 : type: mcast, vid = 2, addr = 01:00:5e:00:00:01, mcast_state = f, >>> no super, port_mask = 0x5 >>> >>> After VLAN configuration: >>> >>> # switch-config -d >>> cpsw hw version 1.12 (0) >>> 0 : type: vlan , vid = 1, untag_force = 0x3, reg_mcast = 0x3, >>> unreg_mcast = 0x0, member_list = 0x3 >>> 1 : type: mcast, vid = 1, addr = ff:ff:ff:ff:ff:ff, mcast_state = f, >>> no super, port_mask = 0x3 >>> 2 : type: ucast, vid = 1, addr = 74:6a:8f:00:16:12, ucast_type = >>> persistant, port_num = 0x0, Secure >>> 3 : type: vlan , vid = 0, untag_force = 0x7, reg_mcast = 0x0, >>> unreg_mcast = 0x0, member_list = 0x7 >>> 4 : type: mcast, vid = 1, addr = 01:00:5e:00:00:01, mcast_state = f, >>> no super, port_mask = 0x3 >>> 5 : type: vlan , vid = 2, untag_force = 0x5, reg_mcast = 0x5, >>> unreg_mcast = 0x0, member_list = 0x5 >>> 6 : type: mcast, vid = 2, addr = ff:ff:ff:ff:ff:ff, mcast_state = f, >>> no super, port_mask = 0x5 >>> 7 : type: ucast, vid = 2, addr = 74:6a:8f:00:16:13, ucast_type = >>> persistant, port_num = 0x0, Secure >>> 8 : type: mcast, vid = 2, addr = 01:00:5e:00:00:01, mcast_state = f, >>> no super, port_mask = 0x5 >>> 9 : type: vlan , vid = 100, untag_force = 0x0, reg_mcast = 0x5, >>> unreg_mcast = 0x0, member_list = 0x5 >>> 10 : type: ucast, vid = 100, addr = 74:6a:8f:00:16:13, ucast_type = >>> persistant, port_num = 0x0 >>> 11 : type: mcast, vid = 100, addr = ff:ff:ff:ff:ff:ff, mcast_state = >>> f, no super, port_mask = 0x5 >>> 12 : type: mcast, vid = 2, addr = 01:80:c2:00:00:21, mcast_state = f, >>> no super, port_mask = 0x5 >>> >>> During mulitcast receive: >>> >>> # switch-config -d >>> cpsw hw version 1.12 (0) >>> 0 : type: vlan , vid = 1, untag_force = 0x3, reg_mcast = 0x3, unreg_mcast = 0x0, member_list = 0x3 >>> 1 : type: mcast, vid = 1, addr = ff:ff:ff:ff:ff:ff, mcast_state = f, no super, port_mask = 0x3 >>> 2 : type: ucast, vid = 1, addr = 74:6a:8f:00:16:12, ucast_type = persistant, port_num = 0x0, Secure >>> 3 : type: vlan , vid = 0, untag_force = 0x7, reg_mcast = 0x0, unreg_mcast = 0x0, member_list = 0x7 >> >> unreg_mcast = 0x0 means unregistered multicast packets will be dropped >> >>> 4 : type: mcast, vid = 1, addr = 01:00:5e:00:00:01, mcast_state = f, no super, port_mask = 0x3 >>> 5 : type: vlan , vid = 2, untag_force = 0x5, reg_mcast = 0x5, unreg_mcast = 0x0, member_list = 0x5 >> >> unreg_mcast = 0x0 >> >>> 6 : type: mcast, vid = 2, addr = ff:ff:ff:ff:ff:ff, mcast_state = f, no super, port_mask = 0x5 >>> 7 : type: ucast, vid = 2, addr = 74:6a:8f:00:16:13, ucast_type = persistant, port_num = 0x0, Secure >>> 8 : type: mcast, vid = 2, addr = 01:00:5e:00:00:01, mcast_state = f, no super, port_mask = 0x5 >>> 9 : type: vlan , vid = 100, untag_force = 0x0, reg_mcast = 0x5, unreg_mcast = 0x0, member_list = 0x5 >> >> unreg_mcast = 0x0 >> >>> 10 : type: ucast, vid = 100, addr = 74:6a:8f:00:16:13, ucast_type = persistant, port_num = 0x0 >>> 11 : type: mcast, vid = 100, addr = ff:ff:ff:ff:ff:ff, mcast_state = f, no super, port_mask = 0x5 >>> 12 : type: mcast, vid = 2, addr = 01:80:c2:00:00:21, mcast_state = f, no super, port_mask = 0x5 >>> 13 : type: mcast, vid = 2, addr = 01:00:5e:03:1d:47, mcast_state = f, no super, port_mask = 0x5 >> >> This is requested mcast address, but it's registered for vid=2 (propagated through .ndo_set_rx_mode()) >> >>> 14 : type: ucast, vid = 100, addr = 66:22:04:bc:90:26, ucast_type = untouched , port_num = 0x2 >> >> [...] >>> >>> Both tcpdumps with -p option showed no packets. If I execute ping, I >>> can see related ICMP packets. addr = 66:22:04:bc:90:26 is PandaBoards >>> MAC. >>> >>> Btw I've attached my test scripts (mcastr.py - multicast receiver and >>> mcastt.py - multicast transmitter). Could you reproduce my setup? >>> >> >> I was able to reproduce an issue with your script. As I understand, when cpsw receive the >> mcast packet with dst_address=01:00:5e:03:1d:47 and vid=100 it hits >> the case: >> "if (Multicast packet) # destination address not found >> then portmask is the logical “AND” of unreg_mcast_flood_mask and vlan_member_list >> then goto Egress process" >> >> and as result packet is dropped (you can check eth1 statistic # ethtool -S eth1). >> >> Unfortunately, I was no able to configure mcast address properly in dual mac mode :(, >> but probably Mugunthan can comment here - mcast addressess are offloaded to cpsw from > > I was able to add mcast address for eth0/eth1, but not finding a way to > add mcast entries to eth1.100 interface. I gone through Linux network > stack and didn't find a way where stack asks the driver to add mcast > address for vlan interfaces. *_Network Experts_* can help us here. > >> Net core through .ndo_set_rx_mode() and struct netdev_hw_addr doesn't contain any >> information about vlan and cpsw uses default port vlan, which is vid=2 for eth1 in >> dual mac mode. >> >> >> >> As W/A the allmulti flag can be used: >> >> # ifconfig eth1.100 allmulti > > For now this is the only possible option that can be used. Thanks for working on this issue and finding this workaround. I've attached an USB-to-Ethernet adapter (pagasus driver) to the same system and could successfully send/receive multicasts over VLAN interface (eth2.100). Yegor -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
