Date: Sat, 12 Aug 2023 12:11:29 +0000 From: bugzilla-noreply@freebsd.org To: xen@FreeBSD.org Subject: [Bug 273046] xn: xen netfront does LRO even if packet forwarding is enabled Message-ID: <bug-273046-23905-6ucyXKCuKs@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-273046-23905@https.bugs.freebsd.org/bugzilla/> References: <bug-273046-23905@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=273046 --- Comment #3 from dfr@rabson.org --- Manually disabling LRO using something like 'ifconfig xn0 -lro' does solve the issue. I can see logic in sys/netinet/tcp_lro.c which checks for forwarding in tcp_lro_rx_common but I think that code is only active for software LRO. Iflib also checks before calling tcp_lro_rx but that seems also to be only effective for software LRO. So far I haven't been able to figure out how any other driver manages this. I'm not even 100% sure which drivers support hardware LRO where coalescing happens inside the NIC. -- You are receiving this mail because: You are the assignee for the bug.
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