ET131x Driver / Discussion / Help: Speed drops significantly after some traffic

I use this machine: http://www.linitx.com/viewproduct.php?prodid=11714

I installed the latest et131x driver on a debian etch 2.6.18 kernel (I also tried 2.6.24, which gives the same result). At first, everything looks quite nice - iperf states that bandwidth is about 800 MBit/s, which I could propably live with.

Then I just make some more traffic and the speed significantly drops to about 15 MBit/s (according to iperf). scp shows about 600kb/s.

This is what I see in the logs:

lr3:/var/log# tail -f syslog
Mar 26 20:14:04 lr3 kernel: et131x.ko:WARNING:et131x_ioctl Unhandled IOCTL Code: 0x89f0
Mar 26 20:14:04 lr3 kernel: et131x.ko:WARNING:et131x_ioctl Unhandled IOCTL Code: 0x89f0
Mar 26 20:14:10 lr3 kernel: et131x.ko:WARNING:et131x_isr_handler RXDMA_FB_RING0_LOW or RXDMA_FB_RING1_LOW interrupt
Mar 26 20:14:10 lr3 kernel: et131x.ko:WARNING:et131x_isr_handler RXDMA_FB_RING0_LOW or RXDMA_FB_RING1_LOW interrupt
Mar 26 20:14:34 lr3 kernel: et131x.ko:WARNING:et131x_ioctl Unhandled IOCTL Code: 0x89f0
Mar 26 20:15:04 lr3 last message repeated 3 times
Mar 26 20:15:19 lr3 kernel: et131x.ko:WARNING:et131x_send_packet Can't obtain a TCB
Mar 26 20:15:19 lr3 kernel: et131x.ko:WARNING:et131x_send_packets Resources problem, Queue tx packet
Mar 26 20:15:19 lr3 kernel: et131x.ko:WARNING:et131x_send_packet Can't obtain a TCB
Mar 26 20:15:19 lr3 kernel: et131x.ko:WARNING:et131x_send_packets Resources problem, Queue tx packet
Mar 26 20:15:21 lr3 kernel: et131x.ko:WARNING:et131x_send_packet Can't obtain a TCB
Mar 26 20:15:21 lr3 kernel: et131x.ko:WARNING:et131x_send_packets Resources problem, Queue tx packet
Mar 26 20:15:21 lr3 kernel: et131x.ko:WARNING:et131x_send_packet Can't obtain a TCB
Mar 26 20:15:21 lr3 kernel: et131x.ko:WARNING:et131x_send_packets Resources problem, Queue tx packet
Mar 26 20:15:22 lr3 kernel: et131x.ko:WARNING:et131x_send_packet Can't obtain a TCB
Mar 26 20:15:22 lr3 kernel: et131x.ko:WARNING:et131x_send_packets Resources problem, Queue tx packet
Mar 26 20:15:22 lr3 kernel: et131x.ko:WARNING:et131x_send_packet Can't obtain a TCB
Mar 26 20:15:22 lr3 kernel: et131x.ko:WARNING:et131x_send_packets Resources problem, Queue tx packet
Mar 26 20:15:24 lr3 kernel: et131x.ko:WARNING:et131x_send_packet Can't obtain a TCB
Mar 26 20:15:24 lr3 kernel: et131x.ko:WARNING:et131x_send_packets Resources problem, Queue tx packet
Mar 26 20:15:24 lr3 kernel: et131x.ko:WARNING:et131x_send_packet Can't obtain a TCB
Mar 26 20:15:24 lr3 kernel: et131x.ko:WARNING:et131x_send_packets Resources problem, Queue tx packet
Mar 26 20:15:25 lr3 kernel: et131x.ko:WARNING:et131x_send_packet Can't obtain a TCB
Mar 26 20:15:25 lr3 kernel: et131x.ko:WARNING:et131x_send_packets Resources problem, Queue tx packet
Mar 26 20:15:25 lr3 kernel: et131x.ko:WARNING:et131x_send_packet Can't obtain a TCB
Mar 26 20:15:25 lr3 kernel: et131x.ko:WARNING:et131x_send_packets Resources problem, Queue tx packet
Mar 26 20:15:28 lr3 kernel: et131x.ko:WARNING:et131x_send_packet Can't obtain a TCB
Mar 26 20:15:28 lr3 kernel: et131x.ko:WARNING:et131x_send_packets Resources problem, Queue tx packet
Mar 26 20:15:28 lr3 kernel: et131x.ko:WARNING:et131x_send_packet Can't obtain a TCB
Mar 26 20:15:28 lr3 kernel: et131x.ko:WARNING:et131x_send_packets Resources problem, Queue tx packet
Mar 26 20:15:34 lr3 kernel: et131x.ko:WARNING:et131x_ioctl Unhandled IOCTL Code: 0x89f0
Mar 26 20:16:04 lr3 last message repeated 3 times
Mar 26 20:16:32 lr3 kernel: et131x.ko:ERROR:nic_rx_pkts NICRxPkts PSR Entry 641 indicates length of 11051 and/or bad bi(739)
Mar 26 20:16:32 lr3 kernel: et131x.ko:ERROR:nic_rx_pkts NICRxPkts PSR Entry 642 indicates length of 31941 and/or bad bi(826)
Mar 26 20:16:34 lr3 kernel: et131x.ko:WARNING:et131x_ioctl Unhandled IOCTL Code: 0x89f0
Mar 26 20:16:34 lr3 kernel: et131x.ko:WARNING:et131x_ioctl Unhandled IOCTL Code: 0x89f0
Mar 26 20:17:01 lr3 /USR/SBIN/CRON[1874]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly)
Mar 26 20:17:04 lr3 kernel: et131x.ko:WARNING:et131x_ioctl Unhandled IOCTL Code: 0x89f0
Mar 26 20:17:04 lr3 kernel: et131x.ko:WARNING:et131x_ioctl Unhandled IOCTL Code: 0x89f0
Mar 26 20:17:20 lr3 kernel: et131x.ko:ERROR:nic_rx_pkts NICRxPkts PSR Entry 953 indicates length of 26426 and/or bad bi(842)
Mar 26 20:17:20 lr3 kernel: et131x.ko:ERROR:nic_rx_pkts NICRxPkts PSR Entry 289 indicates length of 5537 and/or bad bi(622)
Mar 26 20:17:20 lr3 kernel: et131x.ko:ERROR:nic_rx_pkts NICRxPkts PSR Entry 290 indicates length of 34829 and/or bad bi(856)
Mar 26 20:17:20 lr3 kernel: et131x.ko:ERROR:nic_rx_pkts NICRxPkts PSR Entry 955 indicates length of 3981 and/or bad bi(117)
Mar 26 20:17:20 lr3 kernel: et131x.ko:ERROR:nic_rx_pkts NICRxPkts PSR Entry 291 indicates length of 36375 and/or bad bi(886)
Mar 26 20:17:20 lr3 kernel: et131x.ko:ERROR:nic_rx_pkts NICRxPkts PSR Entry 292 indicates length of 56198 and/or bad bi(595)
Mar 26 20:17:34 lr3 kernel: et131x.ko:WARNING:et131x_ioctl Unhandled IOCTL Code: 0x89f0

Mar 26 20:18:04 lr3 last message repeated 3 times
Mar 26 20:18:16 lr3 kernel: et131x.ko:ERROR:nic_rx_pkts NICRxPkts PSR Entry 698 indicates length of 53940 and/or bad bi(710)
Mar 26 20:18:16 lr3 kernel: et131x.ko:ERROR:nic_rx_pkts NICRxPkts PSR Entry 699 indicates length of 55721 and/or bad bi(525)
Mar 26 20:18:16 lr3 kernel: et131x.ko:ERROR:nic_rx_pkts NICRxPkts PSR Entry 700 indicates length of 44141 and/or bad bi(204)
Mar 26 20:18:28 lr3 kernel: et131x.ko:ERROR:nic_rx_pkts NICRxPkts PSR Entry 155 indicates length of 61555 and/or bad bi(962)
Mar 26 20:18:34 lr3 kernel: et131x.ko:WARNING:et131x_ioctl Unhandled IOCTL Code: 0x89f0

Any help would be much appreciated.

Regards
Dominik

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Speed drops significantly after some traffic