tg3 driver / BCM5722 dropping to 10Base-HD

tg3 driver / BCM5722 dropping to 10Base-HD

[marco gaddoni]

Hello,

i have a dell with a BCM5722 driven by the tg3 driver.

this pc is connected to an unmanaged switch by micronet;
the connection is at 1000MBs.

the system is normally stable;
sometimes the connection get dropped to 10Mbs/HD.

i can get te connection back up to 1000Mbps
with an ethtool -t eth0.

do you have any idea on what is the cause of this ?
is this the wrong adderess?

please cc: me as i am not subscibed to netdev.

thank you in advance,
 marco,

02:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5722
Gigabit Ethernet PCI Express
        Subsystem: Dell PowerEdge T300 Broadcom NetXtreme 57xx
        Flags: bus master, fast devsel, latency 0, IRQ 17
        Memory at dfef0000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: [48] Power Management version 3
        Capabilities: [50] Vital Product Data <?>
        Capabilities: [58] Vendor Specific Information <?>
        Capabilities: [e8] Message Signalled Interrupts: Mask- 64bit+
Count=1/1 Enable-
        Capabilities: [d0] Express Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
                UESta:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt-
UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSVoil-
                UEMsk:  DLP- SDES- TLP- FCP- CmpltTO+ CmpltAbrt+
UnxCmplt+ RxOF- MalfTLP- ECRC- UnsupReq+ ACSVoil-
                UESvrt: DLP+ SDES+ TLP+ FCP+ CmpltTO- CmpltAbrt-
UnxCmplt- RxOF+ MalfTLP+ ECRC+ UnsupReq- ACSVoil-
                CESta:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
                CESta:  RxErr+ BadTLP+ BadDLLP+ Rollover+ Timeout+ NonFatalErr+
                AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
        Capabilities: [13c] Virtual Channel <?>
        Capabilities: [160] Device Serial Number ba-79-2e-fe-ff-b9-26-00
        Capabilities: [16c] Power Budgeting <?>
        Kernel driver in use: tg3
        Kernel modules: tg3


srvlinux:~ # ethtool -S eth0
NIC statistics:
     rx_octets: 11858646
     rx_fragments: 0
     rx_ucast_packets: 126925
     rx_mcast_packets: 0
     rx_bcast_packets: 370
     rx_fcs_errors: 0
     rx_align_errors: 0
     rx_xon_pause_rcvd: 0
     rx_xoff_pause_rcvd: 851
     rx_mac_ctrl_rcvd: 0
     rx_xoff_entered: 424
     rx_frame_too_long_errors: 0
     rx_jabbers: 0
     rx_undersize_packets: 0
     rx_in_length_errors: 0
     rx_out_length_errors: 0
     rx_64_or_less_octet_packets: 0
     rx_65_to_127_octet_packets: 0
     rx_128_to_255_octet_packets: 0
     rx_256_to_511_octet_packets: 0
     rx_512_to_1023_octet_packets: 0
     rx_1024_to_1522_octet_packets: 0
     rx_1523_to_2047_octet_packets: 0
     rx_2048_to_4095_octet_packets: 0
     rx_4096_to_8191_octet_packets: 0
     rx_8192_to_9022_octet_packets: 0
     tx_octets: 156635560
     tx_collisions: 0
     tx_xon_sent: 0
     tx_xoff_sent: 0
     tx_flow_control: 0
     tx_mac_errors: 0
     tx_single_collisions: 0
     tx_mult_collisions: 0
     tx_deferred: 0
     tx_excessive_collisions: 0
     tx_late_collisions: 0
     tx_collide_2times: 0
     tx_collide_3times: 0
     tx_collide_4times: 0
     tx_collide_5times: 0
     tx_collide_6times: 0
     tx_collide_7times: 0
     tx_collide_8times: 0
     tx_collide_9times: 0
     tx_collide_10times: 0
     tx_collide_11times: 0
     tx_collide_12times: 0
     tx_collide_13times: 0
     tx_collide_14times: 0
     tx_collide_15times: 0
     tx_ucast_packets: 323623
     tx_mcast_packets: 0
     tx_bcast_packets: 37
     tx_carrier_sense_errors: 0
     tx_discards: 0
     tx_errors: 0
     dma_writeq_full: 0
     dma_write_prioq_full: 0
     rxbds_empty: 0
     rx_discards: 0
     rx_errors: 0
     rx_threshold_hit: 0
     dma_readq_full: 0
     dma_read_prioq_full: 0
     tx_comp_queue_full: 0
     ring_set_send_prod_index: 0
     ring_status_update: 0
     nic_irqs: 0
     nic_avoided_irqs: 0
     nic_tx_threshold_hit: 0

srvlinux:~ # uname -a
Linux srvlinux 2.6.27.39-0.3-default #1 SMP 2009-11-23 12:57:38 +0100
x86_64 x86_64 x86_64 GNU/Linux

-- 
"Reality continues to ruin my life." - Calvin.

Re: tg3 driver / BCM5722 dropping to 10Base-HD

[Matt Carlson]

On Mon, Jan 18, 2010 at 06:17:32AM -0800, marco gaddoni wrote:
> Hello,
> 
> i have a dell with a BCM5722 driven by the tg3 driver.
> 
> this pc is connected to an unmanaged switch by micronet;
> the connection is at 1000MBs.
> 
> the system is normally stable;
> sometimes the connection get dropped to 10Mbs/HD.
> 
> i can get te connection back up to 1000Mbps
> with an ethtool -t eth0.
> 
> do you have any idea on what is the cause of this ?
> is this the wrong adderess?
> 
> please cc: me as i am not subscibed to netdev.
> 
> thank you in advance,
>  marco,

Can you post the driver messages from the syslog and the output of
ethtool -i eth0?

Re: tg3 driver / BCM5722 dropping to 10Base-HD

[marco gaddoni]

On Wed, Jan 20, 2010 at 00:08, Matt Carlson <mcarlson@broadcom.com> wrote:
> On Mon, Jan 18, 2010 at 06:17:32AM -0800, marco gaddoni wrote:
>> Hello,
>>
>> i have a dell with a BCM5722 driven by the tg3 driver.
>>
>> this pc is connected to an unmanaged switch by micronet;
>> the connection is at 1000MBs.
>>
>> the system is normally stable;
>> sometimes the connection get dropped to 10Mbs/HD.
>>
>> i can get te connection back up to 1000Mbps
>> with an ethtool -t eth0.
>>
>> do you have any idea on what is the cause of this ?
>> is this the wrong adderess?
>>
>> please cc: me as i am not subscibed to netdev.
>>
>> thank you in advance,
>>  marco,
>
> Can you post the driver messages from the syslog and the output of
> ethtool -i eth0?
>
>

hello,

here they are:

tg3.c:v3.99d (May 26, 2009)
tg3 0000:01:00.0: setting latency timer to 64
eth0: Tigon3 [partno(BCM95722) rev a200] (PCI Express) MAC address
00:26:b9:2e:79:b9
eth0: attached PHY is 5722/5756 (10/100/1000Base-T Ethernet) (WireSpeed[1])
eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[1] TSOcap[1]
eth0: dma_rwctrl[76180000] dma_mask[64-bit]
tg3 0000:02:00.0: setting latency timer to 64
eth1: Tigon3 [partno(BCM95722) rev a200] (PCI Express) MAC address
00:26:b9:2e:79:ba
eth1: attached PHY is 5722/5756 (10/100/1000Base-T Ethernet) (WireSpeed[1])
eth1: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[1] TSOcap[1]
eth1: dma_rwctrl[76180000] dma_mask[64-bit]

...

tg3: eth0: Link is up at 1000 Mbps, full duplex.
tg3: eth0: Flow control is on for TX and on for RX.


srvlinux:~ # ethtool -i eth0
driver: tg3
version: 3.99d
firmware-version: 5722-v3.08, ASFIPMI v6.02
bus-info: 0000:01:00.0


-- 
"Reality continues to ruin my life." - Calvin.