Date: Mon, 12 Feb 2024 08:30:37 +0000 From: Benoit Chesneau <benoitc@enki-multimedia.eu> To: Konstantin Belousov <kostikbel@gmail.com> Cc: "freebsd-net@FreeBSD.org" <freebsd-net@freebsd.org> Subject: Re: mlx5en issue with SR-IOV when using in the bridge Message-ID: <VHVL58KsFi0lfUvo1Jz8Vfd2TuGQfzAEDOH8Zh-hDLIbqIpJv45Fh0wuKVaIVOtkC36WZq_QRWqTbUy4NszEgg871l07fG08N7BXRSqV1RI=@enki-multimedia.eu> In-Reply-To: <ZchEDCj66kNE_nKD@kib.kiev.ua> References: <7L4ctsvv8st_6uOSAw8Li1SvAPsNYXPWjv3rRepGpwcRdl900YajxFSLe3frQl4hUE28PKU5lf98gRpN7WlZG7u2FWgOf3BImZu4spzI3Sg=@enki-multimedia.eu> <ZchEDCj66kNE_nKD@kib.kiev.ua>
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Hi Konstantin, indeed the port is plugged to a switch. The port is enabled. So yes that pr= obably is. Is this a firmware issue or can it be solved in the driver? Beno=C3=AEt On Sunday, February 11th, 2024 at 04:50, Konstantin Belousov <kostikbel@gma= il.com> wrote: > On Sat, Feb 10, 2024 at 09:23:36AM +0000, Benoit Chesneau wrote: >=20 > > I have tested the following scenario: > >=20 > > Setup the mellanox driver with SRIOV: > >=20 > > ``` > > $ sudo more /etc/iov/mce0.conf > > PF { > > device: "mlx5_core0"; > > num_vfs: 8; > > } > >=20 > > DEFAULT { > > passthrough: true; > > } > >=20 > > VF-0 { > > mac-addr: "02:01:02:02:01:00"; > > } > >=20 > > VF-1 { > > mac-addr: "02:01:02:02:01:01"; > > } > >=20 > > VF-2 { > > passthrough: false;} > >=20 > > ``` > >=20 > > With one VF in the vm answering to a specific vlan, and one jail on the= host using vnet with the PF in a bridge and a epair interface added to thi= s bridge. > >=20 > > When I am pinging from the jail to the VF in the vm , the vm receive th= e ping or arp requests. But the jail doesn't receive the response. In a sam= e manner , when I ping from the VM to the jail, the host is not found. brid= ge arp doesn't return the vm mac address. > >=20 > > All the hosts has the PF interface set in promiscuous mode but this doe= sn't seem to be enough to allows the bridge to learn other mac ids. When I = directly add the IP to PF, Ping works from the vm to the PF, the reverse is= also true. > >=20 > > Do I miss a setting? Is this expected with mellanox cards? What shoudl = I look for? >=20 >=20 > Do you have the port plugged into a switch and the port enabled? > I suspect VFs do not have enough hairpin code to do proper loopback > communications, and I certain that multicast loopback does not work.
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