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Date:      Thu, 13 Nov 2014 13:52:32 -0500
From:      FF <fusionfoto@gmail.com>
To:        "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org>
Subject:   em0 tx_dma_fail incrementing
Message-ID:  <CAD=tpeenpYqsqgAo-4TkWVEB1g64xg0Mb31wQBC4gEANHk7L7A@mail.gmail.com>

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What knob do I need to turn to address this?

This em0 is in an LACP bundle with an igb0 that isn't showing this problem.

dev.em.0.%desc: Intel(R) PRO/1000 Network Connection 7.3.8
dev.em.0.%driver: em
dev.em.0.%location: slot=25 function=0 handle=\_SB_.PCI0.GLAN
dev.em.0.%pnpinfo: vendor=0x8086 device=0x153b subvendor=0x15d9
subdevice=0x153b class=0x020000
dev.em.0.%parent: pci0
dev.em.0.nvm: -1
dev.em.0.debug: -1
dev.em.0.fc: 3
dev.em.0.rx_int_delay: 0
dev.em.0.tx_int_delay: 66
dev.em.0.rx_abs_int_delay: 66
dev.em.0.tx_abs_int_delay: 66
dev.em.0.itr: 488
dev.em.0.rx_processing_limit: 100
dev.em.0.eee_control: 1
dev.em.0.link_irq: 0
dev.em.0.mbuf_alloc_fail: 52
dev.em.0.cluster_alloc_fail: 0
dev.em.0.dropped: 0
**
dev.em.0.tx_dma_fail: 1834648
dev.em.0.rx_overruns: 3109
**
dev.em.0.watchdog_timeouts: 0
dev.em.0.device_control: 1209532992
dev.em.0.rx_control: 67141634
dev.em.0.fc_high_water: 23584
dev.em.0.fc_low_water: 20552
dev.em.0.queue0.txd_head: 577
dev.em.0.queue0.txd_tail: 577
dev.em.0.queue0.tx_irq: 0
dev.em.0.queue0.no_desc_avail: 0
dev.em.0.queue0.rxd_head: 967
dev.em.0.queue0.rxd_tail: 966
dev.em.0.queue0.rx_irq: 0
dev.em.0.mac_stats.excess_coll: 0
dev.em.0.mac_stats.single_coll: 0
dev.em.0.mac_stats.multiple_coll: 0
dev.em.0.mac_stats.late_coll: 0
dev.em.0.mac_stats.collision_count: 0
dev.em.0.mac_stats.symbol_errors: 0
dev.em.0.mac_stats.sequence_errors: 0
dev.em.0.mac_stats.defer_count: 0
dev.em.0.mac_stats.missed_packets: 61094
dev.em.0.mac_stats.recv_no_buff: 60008
dev.em.0.mac_stats.recv_undersize: 0
dev.em.0.mac_stats.recv_fragmented: 0
dev.em.0.mac_stats.recv_oversize: 0
dev.em.0.mac_stats.recv_jabber: 0
dev.em.0.mac_stats.recv_errs: 0
dev.em.0.mac_stats.crc_errs: 0
dev.em.0.mac_stats.alignment_errs: 0
dev.em.0.mac_stats.coll_ext_errs: 0
dev.em.0.mac_stats.xon_recvd: 40226659
dev.em.0.mac_stats.xon_txd: 2132
dev.em.0.mac_stats.xoff_recvd: 40241216
dev.em.0.mac_stats.xoff_txd: 2073563
dev.em.0.mac_stats.total_pkts_recvd: 3219537541
dev.em.0.mac_stats.good_pkts_recvd: 3139008594
dev.em.0.mac_stats.bcast_pkts_recvd: 3953817
dev.em.0.mac_stats.mcast_pkts_recvd: 607157
dev.em.0.mac_stats.rx_frames_64: 0
dev.em.0.mac_stats.rx_frames_65_127: 0
dev.em.0.mac_stats.rx_frames_128_255: 0
dev.em.0.mac_stats.rx_frames_256_511: 0
dev.em.0.mac_stats.rx_frames_512_1023: 0
dev.em.0.mac_stats.rx_frames_1024_1522: 0
dev.em.0.mac_stats.good_octets_recvd: 3527296369841
dev.em.0.mac_stats.good_octets_txd: 14348531993101
dev.em.0.mac_stats.total_pkts_txd: 10735190291
dev.em.0.mac_stats.good_pkts_txd: 10733114595
dev.em.0.mac_stats.bcast_pkts_txd: 14
dev.em.0.mac_stats.mcast_pkts_txd: 54334
dev.em.0.mac_stats.tx_frames_64: 0
dev.em.0.mac_stats.tx_frames_65_127: 0
dev.em.0.mac_stats.tx_frames_128_255: 0
dev.em.0.mac_stats.tx_frames_256_511: 0
dev.em.0.mac_stats.tx_frames_512_1023: 0
dev.em.0.mac_stats.tx_frames_1024_1522: 0
dev.em.0.mac_stats.tso_txd: 902605586
dev.em.0.mac_stats.tso_ctx_fail: 0
dev.em.0.interrupts.asserts: 1392541431
dev.em.0.interrupts.rx_pkt_timer: 0
dev.em.0.interrupts.rx_abs_timer: 0
dev.em.0.interrupts.tx_pkt_timer: 0
dev.em.0.interrupts.tx_abs_timer: 0
dev.em.0.interrupts.tx_queue_empty: 0
dev.em.0.interrupts.tx_queue_min_thresh: 0
dev.em.0.interrupts.rx_desc_min_thresh: 0
dev.em.0.interrupts.rx_overrun: 0
dev.em.0.wake: 0

dev.igb.0.%desc: Intel(R) PRO/1000 Network Connection version - 2.3.10
dev.igb.0.%driver: igb
dev.igb.0.%location: slot=0 function=0 handle=\_SB_.PCI0.RP04.PXSX
dev.igb.0.%pnpinfo: vendor=0x8086 device=0x1533 subvendor=0x15d9
subdevice=0x1533 class=0x020000
dev.igb.0.%parent: pci5
dev.igb.0.nvm: -1
dev.igb.0.enable_aim: 1
dev.igb.0.fc: 3
dev.igb.0.rx_processing_limit: 100
dev.igb.0.dmac: 0
dev.igb.0.eee_disabled: 0
dev.igb.0.link_irq: 33
dev.igb.0.dropped: 0
dev.igb.0.tx_dma_fail: 0
dev.igb.0.rx_overruns: 0
dev.igb.0.watchdog_timeouts: 0
dev.igb.0.device_control: 1209795137
dev.igb.0.rx_control: 71335938
dev.igb.0.interrupt_mask: 4
dev.igb.0.extended_int_mask: 2147483679
dev.igb.0.tx_buf_alloc: 0
dev.igb.0.rx_buf_alloc: 0
dev.igb.0.fc_high_water: 31328
dev.igb.0.fc_low_water: 31312
dev.igb.0.queue0.no_desc_avail: 0
dev.igb.0.queue0.tx_packets: 62464141
dev.igb.0.queue0.rx_packets: 73012939
dev.igb.0.queue0.rx_bytes: 22529663814
dev.igb.0.queue0.lro_queued: 0
dev.igb.0.queue0.lro_flushed: 0
dev.igb.0.queue1.no_desc_avail: 0
dev.igb.0.queue1.tx_packets: 404298046
dev.igb.0.queue1.rx_packets: 307675818
dev.igb.0.queue1.rx_bytes: 185919902229
dev.igb.0.queue1.lro_queued: 0
dev.igb.0.queue1.lro_flushed: 0
dev.igb.0.queue2.no_desc_avail: 0
dev.igb.0.queue2.tx_packets: 3441053015
dev.igb.0.queue2.rx_packets: 5511826751
dev.igb.0.queue2.rx_bytes: 3054219311510
dev.igb.0.queue2.lro_queued: 0
dev.igb.0.queue2.lro_flushed: 0
dev.igb.0.queue3.no_desc_avail: 0
dev.igb.0.queue3.tx_packets: 1047838830
dev.igb.0.queue3.rx_packets: 1987495318
dev.igb.0.queue3.rx_bytes: 2696179247028
dev.igb.0.queue3.lro_queued: 0
dev.igb.0.queue3.lro_flushed: 0
dev.igb.0.mac_stats.excess_coll: 0
dev.igb.0.mac_stats.single_coll: 0
dev.igb.0.mac_stats.multiple_coll: 0
dev.igb.0.mac_stats.late_coll: 0
dev.igb.0.mac_stats.collision_count: 0
dev.igb.0.mac_stats.symbol_errors: 0
dev.igb.0.mac_stats.sequence_errors: 0
dev.igb.0.mac_stats.defer_count: 283811
dev.igb.0.mac_stats.missed_packets: 9449
dev.igb.0.mac_stats.recv_no_buff: 340
dev.igb.0.mac_stats.recv_undersize: 0
dev.igb.0.mac_stats.recv_fragmented: 0
dev.igb.0.mac_stats.recv_oversize: 0
dev.igb.0.mac_stats.recv_jabber: 0
dev.igb.0.mac_stats.recv_errs: 0
dev.igb.0.mac_stats.crc_errs: 0
dev.igb.0.mac_stats.alignment_errs: 0
dev.igb.0.mac_stats.coll_ext_errs: 0
dev.igb.0.mac_stats.xon_recvd: 46255557
dev.igb.0.mac_stats.xon_txd: 261
dev.igb.0.mac_stats.xoff_recvd: 46255994
dev.igb.0.mac_stats.xoff_txd: 7027
dev.igb.0.mac_stats.total_pkts_recvd: 7975033582
dev.igb.0.mac_stats.good_pkts_recvd: 7880001465
dev.igb.0.mac_stats.bcast_pkts_recvd: 5783868
dev.igb.0.mac_stats.mcast_pkts_recvd: 563315
dev.igb.0.mac_stats.rx_frames_64: 28412906
dev.igb.0.mac_stats.rx_frames_65_127: 3310187919
dev.igb.0.mac_stats.rx_frames_128_255: 784920450
dev.igb.0.mac_stats.rx_frames_256_511: 17225962
dev.igb.0.mac_stats.rx_frames_512_1023: 73415350
dev.igb.0.mac_stats.rx_frames_1024_1522: 3665838878
dev.igb.0.mac_stats.good_octets_recvd: 5990356613544
dev.igb.0.mac_stats.good_octets_txd: 46326753008181
dev.igb.0.mac_stats.total_pkts_txd: 33016014138
dev.igb.0.mac_stats.good_pkts_txd: 33016006850
dev.igb.0.mac_stats.bcast_pkts_txd: 834
dev.igb.0.mac_stats.mcast_pkts_txd: 54331
dev.igb.0.mac_stats.tx_frames_64: 30741691
dev.igb.0.mac_stats.tx_frames_65_127: 2174824217
dev.igb.0.mac_stats.tx_frames_128_255: 139804927
dev.igb.0.mac_stats.tx_frames_256_511: 59190261
dev.igb.0.mac_stats.tx_frames_512_1023: 386886648
dev.igb.0.mac_stats.tx_frames_1024_1522: 30224559106
dev.igb.0.mac_stats.tso_txd: 2384636909
dev.igb.0.mac_stats.tso_ctx_fail: 0
dev.igb.0.interrupts.asserts: 4556119857
dev.igb.0.interrupts.rx_pkt_timer: 7879778770
dev.igb.0.interrupts.rx_abs_timer: 0
dev.igb.0.interrupts.tx_pkt_timer: 0
dev.igb.0.interrupts.tx_abs_timer: 0
dev.igb.0.interrupts.tx_queue_empty: 33015268817
dev.igb.0.interrupts.tx_queue_min_thresh: 7880001470
dev.igb.0.interrupts.rx_desc_min_thresh: 0
dev.igb.0.interrupts.rx_overrun: 0
dev.igb.0.host.breaker_tx_pkt: 0
dev.igb.0.host.host_tx_pkt_discard: 0
dev.igb.0.host.rx_pkt: 222702
dev.igb.0.host.breaker_rx_pkts: 0
dev.igb.0.host.breaker_rx_pkt_drop: 0
dev.igb.0.host.tx_good_pkt: 738033
dev.igb.0.host.breaker_tx_pkt_drop: 0
dev.igb.0.host.rx_good_bytes: 5990357073320
dev.igb.0.host.tx_good_bytes: 46326753008181
dev.igb.0.host.length_errors: 0
dev.igb.0.host.serdes_violation_pkt: 0
dev.igb.0.host.header_redir_missed: 0
dev.igb.0.wake: 0


hw.em.eee_setting: 1
hw.em.rx_process_limit: 100
hw.em.enable_msix: 1
hw.em.sbp: 0
hw.em.smart_pwr_down: 0
hw.em.txd: 1024
hw.em.rxd: 1024
hw.em.rx_abs_int_delay: 66
hw.em.tx_abs_int_delay: 66
hw.em.rx_int_delay: 0
hw.em.tx_int_delay: 66

hw.igb.rx_process_limit: 100
hw.igb.num_queues: 0
hw.igb.header_split: 0
hw.igb.buf_ring_size: 4096
hw.igb.max_interrupt_rate: 8000
hw.igb.enable_msix: 1
hw.igb.enable_aim: 1
hw.igb.txd: 1024
hw.igb.rxd: 1024

FreeBSD systemname.com 9.2-RELEASE-p10 FreeBSD 9.2-RELEASE-p10 #0 r270148M:
Mon Aug 18 23:14:36 EDT 2014     root@peta108:/usr/obj/usr/src/sys/CUSTOM10
amd64

em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500

options=4019b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,VLAN_HWTSO>
        ether 00:25:90:f2:2d:24
        inet6 fe80::225:90ff:fef2:2d24%em0 prefixlen 64 scopeid 0x2
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active
igb0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500

options=401bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,VLAN_HWTSO>
        ether 00:25:90:f2:2d:24
        inet6 fe80::225:90ff:fef2:2d25%igb0 prefixlen 64 scopeid 0x4
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
        options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
        inet6 ::1 prefixlen 128
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x7
        inet 127.0.0.1 netmask 0xff000000
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
lagg0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500

options=4019b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,VLAN_HWTSO>
        ether 00:25:90:f2:2d:24
        inet 192.168.0.108 netmask 0xffffff00 broadcast 192.168.0.255
        inet6 fe80::225:90ff:fef2:2d24%lagg0 prefixlen 64 scopeid 0x8
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: Ethernet autoselect
        status: active
        laggproto lacp lagghash l2,l3,l4
        laggport: igb0 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING>
        laggport: em0 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING>

Thanks in advance!

-- 
FF



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