On 2/14/21 6:21 AM, Xueming Li wrote: > The NIC can have multiple PCIe links and can be attached to the multiple > hosts, for example the same single NIC can be shared for multiple server > units in the rack. On each PCIe link NIC can provide multiple PFs and > VFs/SFs based on these ones. To provide the unambiguous identification > of the PCIe function the controller index is added. The full representor > identifier consists of three indices - controller index, PF index, and > VF or SF index (if any). > > This patch introduces controller index to ethdev representor syntax, > examples: > > [[c#]pf#]vf#: VF port representor/s, example: pf0vf1 > [[c#]pf#]sf#: SF port representor/s, example: c1pf1sf[0-3] > > c# is controller(host) ID/range in case of multi-host, optional. > > For user application (e.g. OVS), PMD is responsible to interpret and > locate representor device based on controller ID, PF ID and VF/SF ID in > representor syntax. > > Signed-off-by: Xueming Li <xuemi...@nvidia.com> > Acked-by: Viacheslav Ovsiienko <viachesl...@nvidia.com> > Acked-by: Thomas Monjalon <tho...@monjalon.net>
Acked-by: Andrew Rybchenko <andrew.rybche...@oktetlabs.ru>
