Date: Wed, 17 Jun 2015 12:48:45 +0300 From: Sergey Akhmatov <stell@genossen.ru> To: freebsd-net@freebsd.org Subject: oce(4) promiscous mode bug(?) Message-ID: <5581427D.9070007@genossen.ru>
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Hi, I’ve got problems with HP NC550SFP NIC (http://www.emulex.com/products/ethernet-networking-storage-connectivity/ethernet-networking-adapters/hp-branded/nc550sfp/overview/ ) Setup information: I’m intended to use this system for traffic monitoring: switchport configured for traffic mirroring to 10 Gbit port of NC550SFP adapter. Adapter is detected by oce(4) driver: $ dmesg … oce0: <Emulex CNA NIC function:///10.0.664.0///> mem 0xfbff0000-0xfbff3fff,0xfbfc0000-0xfbfdffff,0xfbfa0000-0xfbfbffff irq 32 at device 0.0 on pci4 oce0: Ethernet address: 10:60:4b:01:12:48 oce1: <Emulex CNA NIC function:///10.0.664.0///> mem 0xfbf90000-0xfbf93fff,0xfbf60000-0xfbf7ffff,0xfbf40000-0xfbf5ffff irq 42 at device 0.1 on pci4 oce1: Ethernet address: 10:60:4b:01:12:4c $ pciconf –vl oce0@pci0:4:0:0: class=0x020000 card=0x1747103c chip=0x070019a2 rev=0x02 hdr=0x00 vendor = 'Emulex Corporation' device = 'OneConnect 10Gb NIC' class = network subclass = ethernet oce1@pci0:4:0:1: class=0x020000 card=0x1747103c chip=0x070019a2 rev=0x02 hdr=0x00 vendor = 'Emulex Corporation' device = 'OneConnect 10Gb NIC' class = network subclass = Ethernet sysctl info: dev.oce.0.sfp_vpd_dump: 0 dev.oce.0.aic_enable: 0 dev.oce.0.fw_upgrade: dev.oce.0.loop_back: 0 dev.oce.0.speed: 10000 dev.oce.0.max_rsp_handled: 64 dev.oce.0.firmware_version: 4.9.416.2 dev.oce.0.component_revision: ///10.0.664.0/// dev.oce.0.%parent: pci4 dev.oce.0.%pnpinfo: vendor=0x19a2 device=0x0700 subvendor=0x103c subdevice=0x1747 class=0x020000 dev.oce.0.%location: pci0:4:0:0 handle=\_SB_.PCI0.PT09.PES1 dev.oce.0.%driver: oce dev.oce.0.%desc: Emulex CNA NIC function:///10.0.664.0/// Problem: It is switched to promiscuous mode: $ ifconfig oce0 oce0: flags=68143<UP,BROADCAST,RUNNING,PROMISC,MULTICAST,PPROMISC,MONITOR> metric 0 mtu 1500 options=407bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWFILTER,VLAN_HWTSO> ether 10:60:4b:01:12:48 nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> media: Ethernet autoselect (10Gbase-SR <full-duplex>) status: active Via tcpdump I see only broadcast frames. Via sysctl I see constantly increasing error counter: dev.oce.0.stats.rx.err.address_match_errors: 124171960 It seems that all unicast frames not addressed to adapter's MAC-address are dropped at hardware, which means that promiscuous mode is not working as intended. Behavior is similar under 10.1 RELEASE, and 11.0-CURRENT (FreeBSD 11.0-CURRENT #0 r284443). GENERIK kernel. The same box works fine under Linux with be2net driver, so It’s definitely not a hardware problem and seems like a problem with FreeBSD oce(4) driver Any suggestions? Thanks in advance. Best regards, Sergey Akhmatov
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