Date: Mon, 31 Jul 2017 15:44:11 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-virtualization@FreeBSD.org Subject: [Bug 215737] [bhyve] utilizing virtio-net truncates jumbo frames at 4084 bytes length Message-ID: <bug-215737-27103-JkHPVsW2aD@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-215737-27103@https.bugs.freebsd.org/bugzilla/> References: <bug-215737-27103@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D215737 Peter Grehan <grehan@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |grehan@FreeBSD.org --- Comment #4 from Peter Grehan <grehan@FreeBSD.org> --- (In reply to Harald Schmalzbauer from comment #3) Yes, it is a bug in bhyve's virtio-net code, where the 'merged rx-buffer' feature isn't implemented to spec. It only uses a single guest buffer, whic= h is usually 2K or 4K. The virtio-net code needs some restructuring to request t= he virtio common code to look for enough buffers to cover the size of the inco= ming packet, and to be able to return the length used in each of these back to t= he common code. Also as you mentioned, the e1000 emulation doesn't currently work with netm= ap. There have been patches supplied to fix this - they just need to be tested/integrated. --=20 You are receiving this mail because: You are the assignee for the bug.=
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