works. specifying "parent 9002:" in "tc filter show dev eth0" shows the filter. thanks Lee :) On Thu, Sep 03, 2015 at 08:51:16AM -0700, Lee Brown wrote (verbatim): > I tried replying to the list but it bounced, so simply: > > try adding root to the end of the command line, so something like: > > tc filter show dev eth0 root > > Depending on the type of device (NIC, VLAN, IFB, etc.) it appears to use a > different root handle (my vlan requires ffff: as root handle, while my > IFB's require 0) > > Hope that helps -- lee > > On Thu, Sep 3, 2015 at 6:46 AM, <alopumo@xxxxxxxxx> wrote: > > > > > I would like to use sfq in a htb class with a custom hashing (flow hash or > > flow map). > > > > SFQ with custom hasing works, > > > > > > 1. tc qdisc add dev eth0 root sfq perturb 10 > > > > 2. tc add filter dev eth0 handle 1 flow hash keys src perturb 10 > > divisor 1024 > > or > > 2. tc add filter dev eth0 handle 1 flow map key src and 0x000000ff > > > > When I add the sfq qdisc to an htb class and try to do 2. I get no error > > from tc (and the kernel) > > > > but the filter does not get added. There is no filter in tc -s filter show > > dev eth0 . > > > > The commands: > > > > tc qdisc add dev eth0 root handle 9001: htb default 20 > > tc class add dev eth0 parent 9001: classid 9001:1 htb rate 4mbit > > burst 15k > > tc class add dev eth0 parent 9001:1 classid 9001:10 htb rate 3mbit > > tc class add dev eth0 parent 9001:1 classid 9001:20 htb rate 1mbit > > tc qdisc add dev eth0 parent 9001:10 sfq perturb 10 > > > > tc filter add dev eth0 parent 9002: handle 1 flow map key src and > > 0x000000ff > > (where 9002: is the class of the sfq qdisc) > > > > I also tried with a basic filter (tc filter add .. parent 9002: basic ...) > > and same result. > > > > I added printk in cls_api.c, cls_flow.c, sch_api.c to see what was going > > on. Linux kernel version > > > > 3.13.0 (this is the version installed in the embedded system I am working > > on). > > > > No errors are generated. The class op ->change() returns with err = 0. > > > > > > Anyone ? > > > > > > P.S. adding "handle 1" in tc filter add ... flow ... is something that is > > not well documented. > > > > If tc filter add ... flow ... is run with handle 1 it returns with error > > but does not says anything. > > > > > > Thanks > > > > Andrea > > -- > > To unsubscribe from this list: send the line "unsubscribe lartc" in > > the body of a message to majordomo@xxxxxxxxxxxxxxx > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- -- To unsubscribe from this list: send the line "unsubscribe lartc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
