Hi, > -----Original Message----- > From: dev <dev-boun...@dpdk.org> On Behalf Of Viacheslav Ovsiienko > Sent: Tuesday, July 30, 2019 12:20 PM > To: dev@dpdk.org > Cc: Yongseok Koh <ys...@mellanox.com>; Shahaf Shuler > <shah...@mellanox.com> > Subject: [dpdk-dev] [PATCH v3] net/mlx5: add workaround for VLAN in > virtual machine > > On some virtual setups (particularly on ESXi) when we have SR-IOV and > E-Switch enabled there is the problem to receive VLAN traffic on VF > interfaces. The NIC driver in ESXi hypervisor does not setup E-Switch > vport setting correctly and VLAN traffic targeted to VF is dropped. > > The patch provides the temporary workaround - if the rule > containing the VLAN pattern is being installed for VF the VLAN > network interface over VF is created, like the command does: > > ip link add link vf.if name mlx5.wa.1.100 type vlan id 100 > > The PMD in DPDK maintains the database of created VLAN interfaces > for each existing VF and requested VLAN tags. When all of the RTE > Flows using the given VLAN tag are removed the created VLAN interface > with this VLAN tag is deleted. > > The name of created VLAN interface follows the format: > > evmlx.d1.d2, where d1 is VF interface ifindex, d2 - VLAN ifindex > > Implementation limitations: > > - mask in rules is ignored, rule must specify VLAN tags exactly, > no wildcards (which are implemented by the masks) are allowed > > - virtual environment is detected via rte_hypervisor() call, > and the type of hypervisor is checked. Currently we engage > the workaround for ESXi and unrecognized hypervisors (which > always happen on platforms other than x86 - it means workaround > applied for the Flow over PCI VF). There are no confirmed data > the other hypervisors (HyperV, Qemu) need this workaround, > we are trying to reduce the list of configurations on those > workaround should be applied. > > Signed-off-by: Viacheslav Ovsiienko <viachesl...@mellanox.com> > Acked-by: Matan Azrad <ma...@mellanox.com> > > --- > v3: - address the comments, workaround engaged on ESXi and > unrecognized hypervisors only. > v2: - > https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fpatch > es.dpdk.org%2Fpatch%2F57257%2F&data=02%7C01%7Crasland%40mell > anox.com%7C08938c4de2d04258577408d714cf2ed5%7Ca652971c7d2e4d9ba6 > a4d149256f461b%7C0%7C0%7C637000752398914593&sdata=af8Rd126wr > zuOLQ3UMDbArZwDQbdGq1PwpOtHbBM3Cc%3D&reserved=0 > - rebase > v1: - > https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fpatch > es.dpdk.org%2Fpatch%2F56450%2F&data=02%7C01%7Crasland%40mell > anox.com%7C08938c4de2d04258577408d714cf2ed5%7Ca652971c7d2e4d9ba6 > a4d149256f461b%7C0%7C0%7C637000752398914593&sdata=ppBPLBrdw > O442I4xyrZOqqdqNirHlg%2FpeOn4lqjH4hc%3D&reserved=0 > --- > drivers/net/mlx5/mlx5.c | 6 + > drivers/net/mlx5/mlx5.h | 33 +++++ > drivers/net/mlx5/mlx5_flow.c | 22 +++ > drivers/net/mlx5/mlx5_flow.h | 5 + > drivers/net/mlx5/mlx5_flow_dv.c | 33 ++++- > drivers/net/mlx5/mlx5_flow_verbs.c | 25 +++- > drivers/net/mlx5/mlx5_nl.c | 294 > +++++++++++++++++++++++++++++++++++++ > 7 files changed, 414 insertions(+), 4 deletions(-) >
Patch applied to next-net-mlx, Kindest regards, Raslan Darawsheh
