On Wed, Jun 21, 2017 at 01:30:29AM +0200, Gaetan Rivet wrote: > Following the evolutions announced in [1], here is the first part of > the rte_devargs rework planned for 17.08. The rationale has been partially > explained in [2]. > > This first part covers the introduction of the necessary facilities in > rte_bus to allow for generic device parsing. This API is implemented for > the virtual and PCI buses. Additionally, this rte_bus evolution is being > used within rte_devargs to characterize a device type by its bus. > This work is the first of two parts to reduce the dependency of the EAL > upon specific bus implementations. > > Two public functions are added to rte_bus to help bus recognition: > > - rte_bus_from_name > - rte_bus_from_dev > > These functions are made public because the bus handle within devargs > becomes the generic device type. Recognizing device types is useful for > buses and PMDs alike. > The modified rte_devargs parsing allows declaring on the EAL command line > explicit buses to handle a device. The format is as follow: > > --vdev="virtual:net_ring0" --vdev="net_tap0,iface=tap0" > -w PCI:00:02.0 -w 00:03.0 > > This explicit bus designation is optional; no evolution is currently > forced on users to migrate to this new format. The separating character is > arbitrary and can be any character illegal within a bus name. > Subsequently, what is allowed within a bus name has been formally > defined and is now enforced. > > [1]: http://dpdk.org/ml/archives/dev/2017-May/065634.html > [2]: http://dpdk.org/ml/archives/dev/2017-May/065670.html > > This patchset depends on: > > bus: attach / detach API > http://dpdk.org/ml/archives/dev/2017-May/066330.html > http://dpdk.org/dev/patchwork/patch/24489/ > Just to note there are some errors on apply with this set after applying the latest version of the dependent patches. Nothing that's hard to fix, mind - this set just needs a new version after the attach/detach API set is applied.
/Bruce
