Thursday, March 21, 2019 10:11 AM, Viacheslav Ovsiienko: > Subject: [PATCH 00/14] net/mlx5: add support for multiport IB devices > > The Mellanox NICs support SR-IOV and have E-Switch feature. > When SR-IOV is set up in switchdev mode and E-Switch is enabled we have > so called VF representors in the system. All representors belonging to the > same E-Switch are created on the basis of the single PCI function and with > current implementation each representor has its own dedicated Infiniband > device and operates within its own Infiniband context. It is proposed to > provide representors as ports of the single Infiniband device and operate on > the shared Infiniband context. > > mlx5_pci_probe() routine is planned to be extended to probe the ports of > found Infiniband devices. All active ports, belonging to the same Infiniband > device will use the signle shared Infiniband context of that device: > - QP are created within shared context, with assigning to > specified port > - Verb flows are also created with specifying port index > - Protection Domain is shared by all representors > - Global Memory Regions Cache is shared by all representors, > local ones are not (not in this patchset) > - Shared Asynchronous Event Handler distributes events > among the device ports (not in this patchset) > - UAR mapping to user space is also shared (not in patchset) > > Each representor has its own attach network interface device, interface > name and index can be retrieved via IB device and port index, so the link > control is performed via Netlink in the same way as in existing > implementation.
Nice Work Slava, Please see my comments. Also - where is the support for sharing of the memory regions? > > This patchset also superseedes http://patches.dpdk.org/patch/50486/ > > Signed-off-by: Viacheslav Ovsiienko <viachesl...@mellanox.com> > > Viacheslav Ovsiienko (14): > net/mlx5: add representor recognition on kernels 5.x > net/mlx5: introduce multiport IB device shared structure > net/mlx5: modify get ifindex routine for multiport IB > net/mlx5: add getting IB ports number for multiport IB > net/mlx5: add multiport IB device support to probing > net/mlx5: add IB shared context alloc/free functions > net/mlx5: switch to the names in the shared IB context > net/mlx5: switch to the shared Protection Domain > net/mlx5: switch to the shared context IB attributes > net/mlx5: switch to the shared IB device context > net/mlx5: provide IB port for the object being created > net/mlx5: update install/uninstall int handler routines > net/mlx5: update event handler for multiport IB devices > net/mlx5: add source vport match to the ingress rules > > drivers/net/mlx5/Makefile | 10 + > drivers/net/mlx5/meson.build | 4 + > drivers/net/mlx5/mlx5.c | 549 +++++++++++++++++++++++++++------ > ---- > drivers/net/mlx5/mlx5.h | 38 ++- > drivers/net/mlx5/mlx5_ethdev.c | 241 ++++++++++------ > drivers/net/mlx5/mlx5_flow.c | 2 + > drivers/net/mlx5/mlx5_flow_dv.c | 47 +++- > drivers/net/mlx5/mlx5_flow_verbs.c | 7 +- > drivers/net/mlx5/mlx5_mr.c | 4 +- > drivers/net/mlx5/mlx5_nl.c | 101 ++++++- > drivers/net/mlx5/mlx5_rxq.c | 41 +-- > drivers/net/mlx5/mlx5_socket.c | 4 +- > drivers/net/mlx5/mlx5_stats.c | 22 +- > drivers/net/mlx5/mlx5_trigger.c | 2 +- > drivers/net/mlx5/mlx5_txq.c | 24 +- > 15 files changed, 795 insertions(+), 301 deletions(-) > > -- > 1.8.3.1
