This set of patches is an extension of the proposed patch to handle netlink uevent socket overrun reported by Randy Tice. Mostly impacts users of Azure VF events (MLX5 and MANA).
DPDK uses netlink uevent to track hotplug events reported by the kernel. Since this is a one-way non-blocking channel there is no fool proof way to prevent missing events if DPDK interrupt thread does not keep up. What this series does is: - use netlink group to only receive events from kernel - increase socket buffer to have more headroom - report the problem more clearly in log - document requirement for control threads Stephen Hemminger (4): eal/linux: filter uevent Netlink in kernel eal/linux: increase uevent socket buffer eal/linux: report uevent socket overrun doc: add warning about control threads .mailmap | 1 + .../prog_guide/env_abstraction_layer.rst | 14 +++++ lib/eal/linux/eal_dev.c | 56 ++++++++++++++++--- 3 files changed, 62 insertions(+), 9 deletions(-) -- 2.53.0
