Date: Wed, 02 Jan 2019 14:07:49 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 234570] em(4) regression in 12.0-STABLE Message-ID: <bug-234570-227@https.bugs.freebsd.org/bugzilla/>
next in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D234570 Bug ID: 234570 Summary: em(4) regression in 12.0-STABLE Product: Base System Version: 12.0-STABLE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: zarychtam@plan-b.pwste.edu.pl I have recently upgraded one box running 11.2-STABLE to 12.0-STABLE, but unexpectedly occurred some issues regarding em(4) NIC. Wake on LAN still works, but NIC is deaf after resume regardless the machine was woken up by NIC itself or ACPI button. After resume the switch reports = 1000 link, but when the port is cycled down/up the link doesn't bring up any mor= e. No problems are reported in the kernel message buffer. The second issue comes from constant number of TX/RX queues. Both loader tunables: hw.em.txd and hw.em.rxd are silently ignored and there are always "em0: netmap queues/slots: TX 1/1024, RX 1/1024" Also, the opportunity to enable "options EM_MULTIQUEUE" in the kernel config file has been depreciated which seems like planned degradation of performan= ce for this popular NIC. The affected computer has this network card: em0@pci0:0:25:0: class=3D0x020000 card=3D0x1905103c chip=3D0x153a808= 6 rev=3D0x05 hdr=3D0x00 vendor =3D 'Intel Corporation' device =3D 'Ethernet Connection I217-LM' class =3D network subclass =3D ethernet cap 01[c8] =3D powerspec 2 supports D0 D3 current D0 cap 05[d0] =3D MSI supports 1 message, 64 bit enabled with 1 message cap 13[e0] =3D PCI Advanced Features: FLR TP Suspend/resume and wake on LAN worked fine in 11.2-STABLE, not counting the fact that the machine was able to suspended only once. Suspending after res= ume worked, but workstation was waking up almost immediately (with "sysctl dev.em.0.wake=3D1" set). Next long lasting sleep state was possible only af= ter reboot. --=20 You are receiving this mail because: You are the assignee for the bug.=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-234570-227>