Date: Wed, 29 Apr 2009 20:04:26 +0400 From: pluknet <pluknet@gmail.com> To: Niki Denev <ndenev@gmail.com> Cc: freebsd-net@freebsd.org Subject: Re: bce(4) sees all incoming frames as 2026 bytes in length Message-ID: <a31046fc0904290904x796a7d44ne66514f777d2237f@mail.gmail.com> In-Reply-To: <2e77fc10904290733m4858172ayd96654f3a9a3a8a@mail.gmail.com> References: <5E915E92-2B82-4331-9493-739568CC6E8C@gmail.com> <a31046fc0904290659h3c831abcy14318b73c1462068@mail.gmail.com> <2e77fc10904290733m4858172ayd96654f3a9a3a8a@mail.gmail.com>
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2009/4/29 Niki Denev <ndenev@gmail.com>: > bce1: <Broadcom NetXtreme II BCM5708 1000Base-T (B2)> mem > 0xf8000000-0xf9ffffff irq 16 at device 0.0 on pci3 > bce1: Ethernet address: 00:22:19:xx:xx:xx > bce1: [ITHREAD] > bce1: ASIC (0x57081020); Rev (B2); Bus (PCI-X, 64-bit, 133MHz); B/C > (0x04040105); Flags( MFW MSI ) > > bce1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 > options=1bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4> > ether 00:22:19:xx:xx:xx > inet 10.18.2.1 netmask 0xffffff00 broadcast 10.18.2.255 > media: Ethernet autoselect (1000baseTX <full-duplex>) > status: active > > And here is a tcpdump that shows the problem : > > 16:27:32.593808 00:22:19:yy:yy:yy > 00:22:19:xx:xx:xx, ethertype IPv4 > (0x0800), length 2026: (tos 0x0, ttl 64, id 45347, offset 0, flags > [none], proto ICMP (1), length 84) 10.18.2.2 > 10.18.2.1: ICMP echo > request, id 13578, seq 36, length 64 > 16:27:32.593817 00:22:19:xx:xx:xx > 00:22:19:yy:yy:yy, ethertype IPv4 > (0x0800), length 98: (tos 0x0, ttl 64, id 18415, offset 0, flags > [none], proto ICMP (1), length 84) 10.18.2.1 > 10.18.2.2: ICMP echo > reply, id 13578, seq 36, length 64 Ok, now I see. A link level length is 2026 for me too for some sort of packets (in opposite to proto's len where all is ok). Mine nic is <Broadcom NetXtreme II BCM5708 1000Base-T (B2)> (same as yours). Looks like a regression. I just also tested 7.1-R and it shows expected LL-length. -- wbr, pluknet
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