Date: Thu, 14 Apr 2016 15:35:09 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 208803] ixgbe(4) reports wrong IPv4 checksum when txcsum is enabled Message-ID: <bug-208803-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D208803 Bug ID: 208803 Summary: ixgbe(4) reports wrong IPv4 checksum when txcsum is enabled Product: Base System Version: 10.3-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: n+freebsd@nirf.de CC: freebsd-amd64@FreeBSD.org CC: freebsd-amd64@FreeBSD.org I've got Silicom 10G Ethernet cards, which use the ixgbe(4) driver. When tx= csum is enabled, outgoing IPv4 packets show up in tcpdump on the sending host as having a wrong checksum. However the packets appear to be sent with the cor= rect checksum. On the receiving host, no checksum errors are detected. I've tested this with multiple different cards (single port and dual port) = on different machines. pciconf shows them as: ix0@pci0:12:0:0: class=3D0x020000 card=3D0xa05f8086 chip=3D0x10c7808= 6 rev=3D0x01 hdr=3D0x00 vendor =3D 'Intel Corporation' device =3D '82598EB 10-Gigabit AF Network Connection' class =3D network subclass =3D ethernet --=20 You are receiving this mail because: You are the assignee for the bug.=
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