Intel 82599 Driver issue
1. Background：
1) Linux 2.6.32
2) igbex-2.9.7
3) Linux box with 8-core CPU and with two Intel 82599 NIC;
2. Topology：
client-> [Switch A] -802.1q---[Linux BOX]--802.1q---[Switch B]--->Server
1) Both Intel 82599 NICs are installed on Linux BOX( Kernel Version
2.6.32), there is a 8-core CPUs on it.
2) Using brctl to creat a vlan and add both 10G NIC into vlan;
3) Using vconfig to add tag to support trunk in Linux box
4) Switch A and switch B with trunk(802.1q) enabled
3. Issue
when we send traffic from Client to Server, we found there is packet
loss issue.
I checked the status of 82599 NICs, I found that the tx_queue_7_packet
is always 0;
please see the date as following:
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Linux:~# ethtool -S eth13
NIC statistics:
rx_packets: 5505658
tx_packets: 4830304
rx_bytes: 2256659484
tx_bytes: 1826777635
rx_errors: 0
tx_errors: 0
rx_dropped: 0
tx_dropped: 0
multicast: 0
collisions: 0
rx_over_errors: 0
rx_crc_errors: 0
rx_frame_errors: 0
rx_fifo_errors: 0
rx_missed_errors: 0
tx_aborted_errors: 0
tx_carrier_errors: 0
tx_fifo_errors: 0
tx_heartbeat_errors: 0
rx_pkts_nic: 5505660
tx_pkts_nic: 4830306
rx_bytes_nic: 2293776305
tx_bytes_nic: 1868174364
lsc_int: 3
tx_busy: 0
non_eop_descs: 0
broadcast: 40
rx_no_buffer_count: 0
tx_timeout_count: 0
tx_restart_queue: 0
rx_long_length_errors: 0
rx_short_length_errors: 0
tx_flow_control_xon: 0
rx_flow_control_xon: 0
tx_flow_control_xoff: 0
rx_flow_control_xoff: 0
rx_csum_offload_errors: 0
alloc_rx_page_failed: 0
alloc_rx_buff_failed: 0
lro_aggregated: 0
lro_flushed: 0
rx_no_dma_resources: 0
hw_rsc_aggregated: 0
hw_rsc_flushed: 0
fdir_match: 47
fdir_miss: 5550448
fdir_overflow: 19
os2bmc_rx_by_bmc: 0
os2bmc_tx_by_bmc: 0
os2bmc_tx_by_host: 0
os2bmc_rx_by_host: 0
tx_queue_0_packets: 1210725
tx_queue_0_bytes: 445558545
tx_queue_1_packets: 576769
tx_queue_1_bytes: 224664767
tx_queue_2_packets: 609933
tx_queue_2_bytes: 236731490
tx_queue_3_packets: 614933
tx_queue_3_bytes: 234892246
tx_queue_4_packets: 594526
tx_queue_4_bytes: 215556014
tx_queue_5_packets: 613356
tx_queue_5_bytes: 233560194
tx_queue_6_packets: 610064
tx_queue_6_bytes: 235815879
tx_queue_7_packets: 0 <------------- It is zero!!!
tx_queue_7_bytes: 0
rx_queue_0_packets: 695195
rx_queue_0_bytes: 278977936
rx_queue_1_packets: 701734
rx_queue_1_bytes: 292600357
rx_queue_2_packets: 686360
rx_queue_2_bytes: 275718791
rx_queue_3_packets: 696852
rx_queue_3_bytes: 289093338
rx_queue_4_packets: 678927
rx_queue_4_bytes: 277568190
rx_queue_5_packets: 676590
rx_queue_5_bytes: 282294878
rx_queue_6_packets: 680791
rx_queue_6_bytes: 271963862
rx_queue_7_packets: 689211 <--------------It is NOT zeor!!!
rx_queue_7_bytes: 288442287
Linux:~# ethtool -S eth14
NIC statistics:
rx_packets: 6372704
tx_packets: 4650711
rx_bytes: 2483325372
tx_bytes: 1881251140
rx_errors: 0
tx_errors: 0
rx_dropped: 0
tx_dropped: 0
multicast: 36938
collisions: 0
rx_over_errors: 0
rx_crc_errors: 0
rx_frame_errors: 0
rx_fifo_errors: 0
rx_missed_errors: 0
tx_aborted_errors: 0
tx_carrier_errors: 0
tx_fifo_errors: 0
tx_heartbeat_errors: 0
rx_pkts_nic: 6372709
tx_pkts_nic: 4650714
rx_bytes_nic: 2534303747
tx_bytes_nic: 1921360904
lsc_int: 1
tx_busy: 0
non_eop_descs: 0
broadcast: 11009
rx_no_buffer_count: 0
tx_timeout_count: 0
tx_restart_queue: 0
rx_long_length_errors: 0
rx_short_length_errors: 0
tx_flow_control_xon: 0
rx_flow_control_xon: 0
tx_flow_control_xoff: 0
rx_flow_control_xoff: 0
rx_csum_offload_errors: 0
alloc_rx_page_failed: 0
alloc_rx_buff_failed: 0
lro_aggregated: 0
lro_flushed: 0
rx_no_dma_resources: 0
hw_rsc_aggregated: 0
hw_rsc_flushed: 0
fdir_match: 32
fdir_miss: 6485646
fdir_overflow: 46
os2bmc_rx_by_bmc: 0
os2bmc_tx_by_bmc: 0
os2bmc_tx_by_host: 0
os2bmc_rx_by_host: 0
tx_queue_0_packets: 1180153
tx_queue_0_bytes: 476955048
tx_queue_1_packets: 579879
tx_queue_1_bytes: 229890239
tx_queue_2_packets: 587840
tx_queue_2_bytes: 240345235
tx_queue_3_packets: 573652
tx_queue_3_bytes: 231200121
tx_queue_4_packets: 571382
tx_queue_4_bytes: 235358528
tx_queue_5_packets: 575149
tx_queue_5_bytes: 227035305
tx_queue_6_packets: 582659
tx_queue_6_bytes: 240468055
tx_queue_7_packets: 0 <--------------It is zeor!!!
tx_queue_7_bytes: 0
rx_queue_0_packets: 824893
rx_queue_0_bytes: 306518386
rx_queue_1_packets: 779150
rx_queue_1_bytes: 302348706
rx_queue_2_packets: 762524
rx_queue_2_bytes: 305554678
rx_queue_3_packets: 809460
rx_queue_3_bytes: 320845361
rx_queue_4_packets: 805899
rx_queue_4_bytes: 317410011
rx_queue_5_packets: 784274
rx_queue_5_bytes: 295367729
rx_queue_6_packets: 805542
rx_queue_6_bytes: 317140027
rx_queue_7_packets: 800967 <--------------It is NOT zeor!!!
rx_queue_7_bytes: 318146743
4. my question
1) can anyone tell me how to adjust the NIC?
2) I re-compiled the driver and disabled LRO per Intel website, the
issue is still alive.
3) I use the latest driver(ixgbe-3.11.33), the issue is still alive.
3) the fdir_miss is huge, is it related with 802.1q packet?
Appreciate your help.
Nexthop
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