On Wed, Oct 19, 2022 at 05:31:48AM +0000, Eli Cohen wrote: > > From: Si-Wei Liu <si-wei.liu@xxxxxxxxxx> > > Sent: Tuesday, 18 October 2022 22:21 > > To: Eli Cohen <elic@xxxxxxxxxx>; mst@xxxxxxxxxx; jasowang@xxxxxxxxxx; > > linux-kernel@xxxxxxxxxxxxxxx; virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx > > Cc: eperezma@xxxxxxxxxx; lulu@xxxxxxxxxx > > Subject: Re: [PATCH 1/4] vdpa/mlx5: Fix rule forwarding VLAN to TIR > > > > Hi Eli, > > > > It's not for this patch but something related, so just a friendly > > heads-up. I haven't validated the VLAN tagging behavior yet for mlx5 > > vdpa, but from my quick read of the code it doesn't seem it > > differentiates the case with and without VIRTIO_NET_F_CTRL_VLAN, to be > > compatible/compliant with what's been implemented in QEMU software (a > > spec addendum was filed as requested by Michael): > > > > https://github.com/oasis-tcs/virtio-spec/issues/147 > > > > - when VIRTIO_NET_F_CTRL_VLAN is negotiated, the device starts with > > all VLANs filtered (meaning only untagged traffic can be received, > > and traffic with VLAN tag will be dropped). > > > > - when VIRTIO_NET_F_CTRL_VLAN is not negotiated, all traffic including > > untagged and tagged can be received. > > > > Can you please help check if we need further fix in terms of VLAN tagging? > > > > Sure. It's broken today. I will fix this to conform to the above requirements and send V1. Did you mean v2? > > Thanks, > > -Siwei > > > > > > On 10/18/2022 4:12 AM, Eli Cohen wrote: > > > Set the VLAN id to the header values field instead of overwriting the > > > headers criteria field. > > > > > > Before this fix, VLAN filtering would not really work and tagged packets > > > would be forwarded unfiltered to the TIR. > > > > > > Fixes: baf2ad3f6a98 ("vdpa/mlx5: Add RX MAC VLAN filter support") > > > > > > Signed-off-by: Eli Cohen <elic@xxxxxxxxxx> > > Reviewed-by: Si-Wei Liu <si-wei.liu@xxxxxxxxxx> > > > > > --- > > > drivers/vdpa/mlx5/net/mlx5_vnet.c | 2 +- > > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > > > diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c > > b/drivers/vdpa/mlx5/net/mlx5_vnet.c > > > index 90913365def4..dd29fdfc24ed 100644 > > > --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c > > > +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c > > > @@ -1472,7 +1472,7 @@ static int mlx5_vdpa_add_mac_vlan_rules(struct > > mlx5_vdpa_net *ndev, u8 *mac, > > > if (tagged) { > > > MLX5_SET(fte_match_set_lyr_2_4, headers_v, cvlan_tag, 1); > > > MLX5_SET_TO_ONES(fte_match_set_lyr_2_4, headers_c, > > first_vid); > > > - MLX5_SET(fte_match_set_lyr_2_4, headers_c, first_vid, vid); > > > + MLX5_SET(fte_match_set_lyr_2_4, headers_v, first_vid, vid); > > > } > > > flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; > > > dest.type = MLX5_FLOW_DESTINATION_TYPE_TIR; > _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
