From: "Matt Carlson" <mcarlson@broadcom•com>
To: "Thomas Habets" <thomas@habets•pp.se>
Cc: "Eric Dumazet" <eric.dumazet@gmail•com>,
"linux-kernel@vger•kernel.org" <linux-kernel@vger•kernel.org>,
netdev <netdev@vger•kernel.org>,
"Matthew Carlson" <mcarlson@broadcom•com>,
"Michael Chan" <mchan@broadcom•com>
Subject: Re: BUG: IPv6 stops working after a while, needs ip ne del command to reset
Date: Tue, 17 Aug 2010 10:11:15 -0700 [thread overview]
Message-ID: <20100817171115.GA4134@mcarlson.broadcom.com> (raw)
In-Reply-To: <alpine.DEB.1.10.1008171737260.21857@red.crap.retrofitta.se>
On Tue, Aug 17, 2010 at 08:58:26AM -0700, Thomas Habets wrote:
> On Tue, 17 Aug 2010, Eric Dumazet wrote:
> > Try following patch to check tg3 receives correct multicast list (its OK
> > for me, seen on dmesg output)
> >
> > [17162.120238] add mc_addr(ha->addr=33:33:00:00:00:01)
> > [17162.120270] add mc_addr(ha->addr=01:00:5e:00:00:01)
> > [17162.120298] add mc_addr(ha->addr=33:33:ff:87:96:ce)
> > [17162.120326] add mc_addr(ha->addr=33:33:ff:5c:00:02)
> > [17162.120355] filters=80000001 00000000 00400000 40000000
>
> Right after boot:
>
> $ dmesg | egrep 'eth0|^add mc|^filters='
> tg3 0000:03:04.0: eth0: Tigon3 [partno(N/A) rev 9003] (PCIX:133MHz:64-bit)
> MAC address 00:24:81:a3:44:24
> tg3 0000:03:04.0: eth0: attached PHY is 5714 (10/100/1000Base-T Ethernet)
> (WireSpeed[1])
> tg3 0000:03:04.0: eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[1] TSOcap[1]
> tg3 0000:03:04.0: eth0: dma_rwctrl[76148000] dma_mask[40-bit]
> add mc_addr(ha->addr=33:33:00:00:00:01)
> filters=80000000 00000000 00000000 00000000
> add mc_addr(ha->addr=33:33:00:00:00:01)
> filters=80000000 00000000 00000000 00000000
> add mc_addr(ha->addr=33:33:00:00:00:01)
> filters=80000000 00000000 00000000 00000000
> add mc_addr(ha->addr=33:33:00:00:00:01)
> add mc_addr(ha->addr=01:00:5e:00:00:01)
> filters=80000000 00000000 00000000 40000000
> ADDRCONF(NETDEV_UP): eth0: link is not ready
> add mc_addr(ha->addr=33:33:00:00:00:01)
> add mc_addr(ha->addr=01:00:5e:00:00:01)
> filters=80000000 00000000 00000000 40000000
> add mc_addr(ha->addr=33:33:00:00:00:01)
> add mc_addr(ha->addr=01:00:5e:00:00:01)
> filters=80000000 00000000 00000000 40000000
> add mc_addr(ha->addr=33:33:00:00:00:01)
> add mc_addr(ha->addr=01:00:5e:00:00:01)
> add mc_addr(ha->addr=33:33:ff:5c:00:02)
> filters=80000001 00000000 00000000 40000000
> tg3 0000:03:04.0: eth0: Link is up at 1000 Mbps, full duplex
> tg3 0000:03:04.0: eth0: Flow control is off for TX and off for RX
> ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
> add mc_addr(ha->addr=33:33:00:00:00:01)
> add mc_addr(ha->addr=01:00:5e:00:00:01)
> add mc_addr(ha->addr=33:33:ff:5c:00:02)
> add mc_addr(ha->addr=33:33:ff:a3:44:24)
> filters=80020001 00000000 00000000 40000000
> eth0: no IPv6 routers present
>
> [ ifconfig eth0 allmulti
> (ip l and ifconfig say ALLMULTI is on)
> ]
>
> add mc_addr(ha->addr=33:33:00:00:00:01)
> add mc_addr(ha->addr=01:00:5e:00:00:01)
> add mc_addr(ha->addr=33:33:ff:5c:00:02)
> add mc_addr(ha->addr=33:33:ff:a3:44:24)
> filters=80020001 00000000 00000000 40000000
>
> [
> $ sudo ifconfig eth0 -allmulti
> Warning: Interface eth0 still in ALLMULTI mode.
> (ip l and ifconfig say ALLMULTI is now off)
> ]
>
> add mc_addr(ha->addr=33:33:00:00:00:01)
> add mc_addr(ha->addr=01:00:5e:00:00:01)
> add mc_addr(ha->addr=33:33:ff:5c:00:02)
> add mc_addr(ha->addr=33:33:ff:a3:44:24)
> filters=80020001 00000000 00000000 40000000
>
> [ ifconfig eth0 allmulti
> (same effect)
> ]
>
> add mc_addr(ha->addr=33:33:00:00:00:01)
> add mc_addr(ha->addr=01:00:5e:00:00:01)
> add mc_addr(ha->addr=33:33:ff:5c:00:02)
> add mc_addr(ha->addr=33:33:ff:a3:44:24)
> filters=80020001 00000000 00000000 40000000
>
> [
> $ sudo ifconfig eth0 -allmulti
> Warning: Interface eth0 still in ALLMULTI mode.
> (same effect)
> ]
>
> add mc_addr(ha->addr=33:33:00:00:00:01)
> add mc_addr(ha->addr=01:00:5e:00:00:01)
> add mc_addr(ha->addr=33:33:ff:5c:00:02)
> add mc_addr(ha->addr=33:33:ff:a3:44:24)
> filters=80020001 00000000 00000000 40000000
>
>
> > But if problem remains even with "ifconfig eth0 allmulti" I suspect a
> > NIC firmware problem. (allmulti set to 1 all the 128 bits of filters)
I suspect Eric is right.
Thomas, can you give me the output of 'ethtool -i eth0'?
> If you expected more bits set in "filters" with allmulti than without it,
> that doesn't seem to be the case.
"allmulti" has the effect of enabling all 128 bits of the multicast hash
filters. It doesn't explicitly enable them all though.
> Applied your patch to v2.6.35.
>
> ---------
> typedef struct me_s {
> char name[] = { "Thomas Habets" };
> char email[] = { "thomas@habets•pp.se" };
> char kernel[] = { "Linux" };
> char *pgpKey[] = { "http://www.habets.pp.se/pubkey.txt" };
> char pgp[] = { "A8A3 D1DD 4AE0 8467 7FDE 0945 286A E90A AD48 E854" };
> char coolcmd[] = { "echo '. ./_&. ./_'>_;. ./_" };
> } me_t;
>
next prev parent reply other threads:[~2010-08-17 17:11 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <alpine.DEB.1.10.1008131952470.19570@red.crap.retrofitta.se>
2010-08-16 10:19 ` BUG: IPv6 stops working after a while, needs ip ne del command to reset Eric Dumazet
2010-08-16 10:59 ` Thomas Habets
2010-08-17 5:35 ` Thomas Habets
2010-08-17 6:00 ` Eric Dumazet
2010-08-17 11:08 ` Thomas Habets
2010-08-17 13:15 ` Eric Dumazet
2010-08-17 14:09 ` Thomas Habets
2010-08-17 14:34 ` Eric Dumazet
2010-08-17 15:58 ` Thomas Habets
2010-08-17 17:11 ` Matt Carlson [this message]
2010-08-17 17:29 ` Thomas Habets
2010-08-17 18:31 ` Matt Carlson
2010-08-17 18:52 ` Thomas Habets
2010-08-18 1:23 ` Matt Carlson
2010-08-18 7:02 ` Thomas Habets
2010-09-01 9:21 ` Thomas Habets
2010-09-01 13:19 ` Eric Dumazet
2010-09-01 14:40 ` Brian Haley
2010-09-14 19:56 ` Thomas Habets
2010-09-15 17:37 ` Brian Haley
2010-08-17 17:13 ` Eric Dumazet
2010-08-17 16:14 ` Thomas Habets
2010-08-06 8:25 Thomas Habets
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20100817171115.GA4134@mcarlson.broadcom.com \
--to=mcarlson@broadcom$(echo .)com \
--cc=eric.dumazet@gmail$(echo .)com \
--cc=linux-kernel@vger$(echo .)kernel.org \
--cc=mchan@broadcom$(echo .)com \
--cc=netdev@vger$(echo .)kernel.org \
--cc=thomas@habets$(echo .)pp.se \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox