linux-kernel - Re: cpsw without dual_emac drops multicast in promisc mode

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20140925154239.GC13319@csclub.uwaterloo.ca>
Date:	Thu, 25 Sep 2014 11:42:39 -0400
From:	"Lennart Sorensen" <lsorense@...lub.uwaterloo.ca>
To:	linux-kernel@...r.kernel.org
Cc:	Len Sorensen <lsorense@...lub.uwaterloo.ca>,
	Mugunthan V N <mugunthanvnm@...com>
Subject: Re: cpsw without dual_emac drops multicast in promisc mode

On Thu, Sep 25, 2014 at 11:19:06AM -0400, Lennart Sorensen wrote:
> It seems that running tcpdump (and hence enabling promisc mode), causes
> all multicast packets to dropped with the cpsw driver.  We are not using
> the dual_emac feature, we are just using one port.  This is on the DRA7XX.
> 
> I see that in dual_emac mode, it is set to ALE_BYPASS (no idea if this
> works, I haven't tried dual_emac mode).  In non dual_emac mode it uses
> ALE_P0_UNI_FLOOD after flushing the multicast entries.  Maybe that's
> not good enough.

I forgot to CC the appropriate people.

-- 
Len Sorensen
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/