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Date:      Tue, 03 Apr 2012 01:45:30 -0400
From:      enoch <ixew@hotmail.com>
To:        freebsd-net@freebsd.org
Subject:   Re: [nfe] DHCP failure on 8-stable
Message-ID:  <87obr95pxh.fsf@hotmail.com>
References:  <jl3lp1$lla$1@dough.gmane.org> <20120330233819.GC7325@michelle.cdnetworks.com> <4F75C5EC.6090303@hotmail.com> <20120402195215.GA3571@michelle.cdnetworks.com> <jlblna$ptp$1@dough.gmane.org> <20120403023225.GD3571@michelle.cdnetworks.com> <87ty11670b.fsf@hotmail.com> <20120403183521.GA7380@michelle.cdnetworks.com>

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YongHyeon PYUN <pyunyh@gmail.com> writes:

> On Mon, Apr 02, 2012 at 07:36:36PM -0400, enoch wrote:
>> YongHyeon PYUN <pyunyh@gmail.com> writes:
>> 
>> > On Mon, Apr 02, 2012 at 03:50:02AM -0400, enoch wrote:
>> >> On 04/02/2012 03:52 PM, YongHyeon PYUN wrote:
>> >> > On Fri, Mar 30, 2012 at 10:40:44AM -0400, enoch wrote:
>> >> >> On 03/30/2012 19:38, YongHyeon PYUN wrote:
>> >> >>> On Fri, Mar 30, 2012 at 03:01:52AM -0400, enoch wrote:
>> >> >>>> Recently it became extremely difficult to pass the DHCP discovery step
>> >> >>>> on boot. Now I am using the buggy [nve] instead.
>> >> >>>>
>> >> >>>> Can anyone help?
>> >> >>>>
>> >> >>>
>> >> >>> Did you set synchronous_dhclient option in rc.conf? 
>> >> >>>
>> >> >>
>> >> >> Yes: ifconfig_nfe0="SYNCDHCP"
>> >> >>
>> >> >> I guess [nfe] is undergoing gradual devel changes of some sort as before
>> >> >> it had some chance of reporting "empty headers" on initial ifconfig and
>> >> >> refusing to work. Sorry, I should have reported when encountering the
>> >> >> first problems rather than solve by reboot.
>> >> > 
>> >> > Would you show me the output of both dmesg(nfe(4) and its PHY only)
>> >> > and 'sysctl dev.nfe.0.stats'?
>> >> > It would be also helpful to know whether nfe(4) still sees
>> >> > incoming traffic.
>> >> > Does assigning static IP work?
>> >> > 
>> >> 
>> >> Static IP direct communication attempt from this desktop to another
>> >> laptop through a crossover cable fails as follows. Thanks.
>> >> 
>> >> nfe0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>> >>         options=82008<VLAN_MTU,WOL_MAGIC,LINKSTATE>
>> >>         ether 00:1f:bc:00:19:dc
>> >>         inet 192.168.0.1 netmask 0xffffff00 broadcast 192.168.0.255
>> >>         media: Ethernet autoselect (1000baseT
>> >> <full-duplex,flowcontrol,master,rxpause,txpause>)
>> >>         status: active
>> >> 
>> >> nfe0: link state changed to UP
>> >> nfe0: <NVIDIA nForce 430 MCP13 Networking Adapter> port 0xf200-0xf207
>> >> mem 0xefffb000-0xefffbfff irq 21 at device 20.0 on pci0
>> >> miibus1: <MII bus> on nfe0
>> >
>> > It seems you've omitted PHY driver here. What PHY driver was
>> > attached to nfe(4)?
>> >
>> 
>> miibus1: <MII bus> on nfe0
>> rgephy1: <RTL8169S/8110S/8211B media interface> PHY 1 on miibus1
>> 
>> >> nfe0: Ethernet address: 00:1f:bc:00:19:dc
>> >> nfe0: [FILTER]
>> >> nfe0: discard frame w/o leading ethernet header (len 0 pkt len 0)
>> >> nfe0: discard frame w/o leading ethernet header (len 0 pkt len 0)
>> >> nfe0: link state changed to UP
>> >> nfe0: discard frame w/o leading ethernet header (len 0 pkt len 0)
>> >> nfe0: discard frame w/o leading ethernet header (len 0 pkt len 0)
>> >> nfe0: discard frame w/o leading ethernet header (len 0 pkt len 0)
>> >> 
>> >> dev.nfe.0.stats.rx.frame_errors: 0
>> >> dev.nfe.0.stats.rx.extra_bytes: 0
>> >> dev.nfe.0.stats.rx.late_cols: 0
>> >> dev.nfe.0.stats.rx.runts: 0
>> >> dev.nfe.0.stats.rx.jumbos: 0
>> >> dev.nfe.0.stats.rx.fifo_overuns: 0
>> >> dev.nfe.0.stats.rx.crc_errors: 0
>> >> dev.nfe.0.stats.rx.fae: 0
>> >> dev.nfe.0.stats.rx.len_errors: 0
>> >> dev.nfe.0.stats.rx.unicast: 56
>> >> dev.nfe.0.stats.rx.multicast: 0
>> >> dev.nfe.0.stats.rx.broadcast: 280
>> >> dev.nfe.0.stats.tx.octets: 7517
>> >> dev.nfe.0.stats.tx.zero_rexmits: 51
>> >> dev.nfe.0.stats.tx.one_rexmits: 0
>> >> dev.nfe.0.stats.tx.multi_rexmits: 0
>> >> dev.nfe.0.stats.tx.late_cols: 0
>> >> dev.nfe.0.stats.tx.fifo_underuns: 0
>> >> dev.nfe.0.stats.tx.carrier_losts: 0
>> >> dev.nfe.0.stats.tx.excess_deferrals: 0
>> >> dev.nfe.0.stats.tx.retry_errors: 0
>> >> 
>> >
>> > Thanks. Would you show me the output of "pciconf -lcbv"?
>> >
>> 
>> nfe0@pci0:0:20:0:       class=0x068000 card=0x10003842 chip=0x026910de rev=0xa3 hdr=0x00
>>     vendor     = 'NVIDIA Corporation'
>>     device     = 'MCP51 Network Bus Enumerator'
>>     class      = bridge
>>     bar   [10] = type Memory, range 32, base 0xefffb000, size 4096, enabled
>>     bar   [14] = type I/O Port, range 32, base 0xf200, size  8, enabled
>>     cap 01[44] = powerspec 2  supports D0 D1 D2 D3  current D0
>> 
>> Interestingly, now that nfe0 is using a static IP it sometimes boots
>> up properly. Are you interested in its good working?
>
> Yes I am. Would you try attached patch and let me know whether the
> patch makes any difference on your box?

Sorry to report: The patch was applied (to 8-stable latest code) but out
of 3 boots only one succeeded. Same stream of "nfe0: discard frame w/o
leading ethernet header (len 0 pkt len 0)" messages.

> Index: sys/dev/nfe/if_nfe.c
> ===================================================================
> --- sys/dev/nfe/if_nfe.c	(revision 233767)
> +++ sys/dev/nfe/if_nfe.c	(working copy)
> @@ -836,12 +836,6 @@
>  
>  	if ((sc->nfe_flags & NFE_PWR_MGMT) == 0)
>  		return;
> -	NFE_WRITE(sc, NFE_RXTX_CTL, NFE_RXTX_RESET | NFE_RXTX_BIT2);
> -	NFE_WRITE(sc, NFE_MAC_RESET, NFE_MAC_RESET_MAGIC);
> -	DELAY(100);
> -	NFE_WRITE(sc, NFE_MAC_RESET, 0);
> -	DELAY(100);
> -	NFE_WRITE(sc, NFE_RXTX_CTL, NFE_RXTX_BIT2);
>  	pwr = NFE_READ(sc, NFE_PWR2_CTL);
>  	pwr &= ~NFE_PWR2_WAKEUP_MASK;
>  	if (sc->nfe_revid >= 0xa3 &&
> @@ -849,6 +843,12 @@
>  	    sc->nfe_devid == PCI_PRODUCT_NVIDIA_NFORCE430_LAN2))
>  		pwr |= NFE_PWR2_REVA3;
>  	NFE_WRITE(sc, NFE_PWR2_CTL, pwr);
> +	NFE_WRITE(sc, NFE_RXTX_CTL, NFE_RXTX_RESET | NFE_RXTX_BIT2);
> +	NFE_WRITE(sc, NFE_MAC_RESET, NFE_MAC_RESET_MAGIC);
> +	DELAY(100);
> +	NFE_WRITE(sc, NFE_MAC_RESET, 0);
> +	DELAY(100);
> +	NFE_WRITE(sc, NFE_RXTX_CTL, NFE_RXTX_BIT2);
>  }
>  
>  
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