13/04/2018 10:30, Jeff Guo: > About hot plug in dpdk, We already have proactive way to add/remove devices > through APIs (rte_eal_hotplug_add/remove), and also have fail-safe driver > to offload the fail-safe work from the app user. But there are still lack > of a general mechanism to monitor hotplug event for all driver, now the > hotplug interrupt event is diversity between each device and driver, such > as mlx4, pci driver and others. > > Use the hot removal event for example, pci drivers not all exposure the > remove interrupt, so in order to make user to easy use the hot plug > feature for pci driver, something must be done to detect the remove event > at the kernel level and offer a new line of interrupt to the user land. > > Base on the uevent of kobject mechanism in kernel, we could use it to > benefit for monitoring the hot plug status of the device which not only > uio/vfio of pci bus devices, but also other, such as cpu/usb/pci-express bus > devices. [...] > Jeff Guo (4): > eal: add device event handle in interrupt thread > eal: add device event monitor framework > eal/linux: uevent parse and process > app/testpmd: enable device hotplug monitoring
Applied, thanks
