netmap(4) on OPNsense 20.7 / status as of kernel version 12.1-p7

	A	B	C	D	E	F
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2	Driver	Description	/wout VLANs	/w VLANs - Parent	/w VLANs - Child	Additional Comments
3	em	Intel E1000 (Also found in QEMU/Proxmox/Vmware guests)	PASS	Fixed in kernel 20.7.2-netmap	PASS	ifconfig does not honor -vlanhwcsum for em(4) https://github.com/luigirizzo/netmap/issues/703 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236584 Fix Commit: https://github.com/freebsd/freebsd/commit/f9a43faa3cf1daffe3b24a0ee710e5c127004769
4	vtnet	Virtio Ethernet (Google Cloud, QEMU, Proxmox)	Fixed in kernel 20.7.2-netmap	Fixed in kernel 20.7.2-netmap	PASS	Kernel crash during netmap close/open while traffic is flowing https://github.com/luigirizzo/netmap/issues/706 Fix Commit: https://github.com/freebsd/freebsd/commit/1bfa9afa85c45adefc74dc3058e3ede6e8cddf2e MFC: https://github.com/freebsd/freebsd/commit/cec7fc20cf4a2e2450e8c3d2b9a2a67b694f10d3#diff-6de0e4ebca455a146e92e51127f52bef
5	igb	Intel 1GbE	PASS	PASS	PASS
6	ixgbe	Intel 1 GbE
7	ix	Intel 10 GbE	Fixed in kernel 20.7.2-netmap	Fixed in kernel 20.7.2-netmap	Fixed in kernel 20.7.2-netmap	Thanks Michael Muenz for the test
8	ixl	Intel 10/25/40 GbE	Fixed in kernel 20.7.2-netmap	Fixed in kernel 20.7.2-netmap	Fixed in kernel 20.7.2-netmap	Received Problem Reports (Kernel crash)
9	mlx4en	Mellenox ConnectX-3 10/40 GbE	PASS	FAIL	PASS	Thanks Michael Muenz for the test
10	re	Realtek 1 Gbps	PASS
11	cxgbe	Chelsio Adapters (1/10/25/40 GbE)
12	bce	Broadcom 1 Gbps	PASS	PASS	PASS
13	xn	Amazon Cloud
14	hn	Microsoft Hyper V (Also found in Azure Cloud)	PASS
15	vmx	VMware	Fixed in kernel 20.7.2-netmap	NEEDS TESTING	NEEDS TESTING	https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=247647 Fix Commit: https://github.com/freebsd/freebsd/commit/4bc07440bf742e7c6dc7cef38cd4282728d25be8
16	tun	tun(4) Point2Point SW If (Used by VPNs and PPPoE)	Implemented in kernel 20.7.2-netmap	N/A	N/A	Development IN PROGRESS
17	bridge	bridge(4) interfaces	FAIL	FAIL	NEEDS TESTING
18	lagg	lagg(4) interfaces	Implemented in kernel 20.7.2-netmap	NEEDS TESTING	PASS
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20	HOW DO I TEST? 1. You need to run latest OPNsense 20.7.2-netmap kernel 2. Your kernel version should read 12.2-p9 or later To test netmap, use one of the following methods: 1. Install Sensei and see if you have any issues: pkg install os-sunnyvalley-devel pkg install os-sensei or 2. Deploy Suricata in "IPS mode". Note that IDS mode does not use netmap and it is irrelevant to this project. or use the small nmbridge application to simulate Suricata/Sensei netmap use: 3. Steps (Assuming em0 is your interface) fetch https://updates.sunnyvalley.io/nmbridge/nmbridge chmod 750 nmbridge ifconfig em0 -vlanhwtso -vlanhwfilter -vlanhwtag -vlanhwcsum -txcsum -rxcsum -tso4 -tso6 -lro -txcsum6 -rxcsum6 ./nmbridge -i netmap:em0 -i netmap:em0^ See if you have any connectivity issues. Try to stop / start the nmbridge application several times while you're passing some traffic over the interface (i.e. while scp'ing a large file)
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