Date: Fri, 05 Oct 2018 20:17:15 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 231416] dhcp / dhclient: bad udp checksums if running on a vlan on a Intel I211 / Broadcom interfaces Message-ID: <bug-231416-7501-kq8MnICIVu@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-231416-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-231416-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D231416 --- Comment #12 from commit-hook@freebsd.org --- A commit references this bug: Author: shurd Date: Fri Oct 5 20:16:20 UTC 2018 New revision: 339207 URL: https://svnweb.freebsd.org/changeset/base/339207 Log: Fix igb corrupting checksums with BPF and VLAN When using a vlan with igb and the vlanhwcsum option, any mbufs which already had the TCP, UDP, or SCTP checksum calculated and therefore don't have the CSUM_[IP|IP6]_[TCP|UDP|SCTP] bits set in the csum_flags field wo= uld have the L4 checksum corrupted by the hardware. This was caused by the driver setting E1000_TXD_POPTS_TXSM any time a checksum bit was set OR a vlan tag was present. The patched driver only sets E1000_TXD_POPTS_TXSM when an offload is requested. PR: 231416 Reported by: pi Approved by: re (gjb) Sponsored by: Limelight Networks Differential Revision: https://reviews.freebsd.org/D17404 Changes: head/sys/dev/e1000/igb_txrx.c --=20 You are receiving this mail because: You are the assignee for the bug.=
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