netdev - Re: cxgb4 mbox4 errors listening to multiple multicast addresses

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Message-ID: <20120510205749.GB4709@BohrerMBP.rgmadvisors.com>
Date:	Thu, 10 May 2012 15:57:49 -0500
From:	Shawn Bohrer <sbohrer@...advisors.com>
To:	Dimitris Michailidis <dm@...lsio.com>
Cc:	netdev@...r.kernel.org
Subject: Re: cxgb4 mbox4 errors listening to multiple multicast addresses

On Thu, May 10, 2012 at 01:46:57PM -0700, Dimitris Michailidis wrote:
> On 05/10/2012 01:14 PM, Shawn Bohrer wrote:
> >Is there any translation of those cryptic mbox 4 errors?
> 
> The mbox messages are dumps of mailbox commands that try to register
> MAC addresses and fail due to exhaustion of exact MAC filters.  It
> should fall back to ALL_MULTI mode and probably shouldn't be logging
> these as they are expected failure.  From your description it would
> appear it didn't fall back, I'll take a closer look.  Can you send
> me the output of ifconfig or ip link for the port in this state?

$ ifconfig eth6
eth6      Link encap:Ethernet  HWaddr 00:07:43:10:52:B0  
          inet6 addr: fe80::207:43ff:fe10:52b0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:7811818 errors:0 dropped:0 overruns:0 frame:0
          TX packets:9087 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1171756876 (1.0 GiB)  TX bytes:608182 (593.9 KiB)
          Interrupt:38 

$ ifconfig vlan824
vlan824   Link encap:Ethernet  HWaddr 00:07:43:10:52:B0  
          inet addr:10.8.24.40  Bcast:10.8.31.255  Mask:255.255.248.0
          inet6 addr: fe80::207:43ff:fe10:52b0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:7811450 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8895 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:999858056 (953.5 MiB)  TX bytes:409410 (399.8 KiB)

$ ip link show eth6
6: eth6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000
    link/ether 00:07:43:10:52:b0 brd ff:ff:ff:ff:ff:ff

$ ip link show vlan824
11: vlan824@...6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP 
    link/ether 00:07:43:10:52:b0 brd ff:ff:ff:ff:ff:ff


--
Shawn

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