On 6/30/20 4:14 AM, Petr Machata wrote: > To allow configuring user-defined actions as a result of inner workings of > a qdisc, a concept of qevents was recently introduced to the kernel. > Qevents are attach points for TC blocks, where filters can be put that are > executed as the packet hits well-defined points in the qdisc algorithms. > The attached blocks can be shared, in a manner similar to clsact ingress > and egress blocks, arbitrary classifiers with arbitrary actions can be put > on them, etc. > > For example: > > # tc qdisc add dev eth0 root handle 1: \ > red limit 500K avpkt 1K qevent early_drop block 10 > # tc filter add block 10 \ > matchall action mirred egress mirror dev eth1 > > This patch set introduces the corresponding iproute2 support. Patch #1 adds > the new netlink attribute enumerators. Patch #2 adds a set of helpers to > implement qevents, and #3 adds a generic documentation to tc.8. Patch #4 > then adds two new qevents to the RED qdisc: mark and early_drop. >
applied to iproute2-next. Thanks
