602fae856d
This allows for a new schedule to be specified during runtime, without
removing the current one.
For that, the semantics of the 'tc qdisc change' operation in the
context of taprio is that if "change" is called and there is a running
schedule, a new schedule is created and the base-time (let's call it
X) of this new schedule is used so at instant X, it becomes the
"current" schedule. So, in short, "change" doesn't change the current
schedule, it creates a new one and sets it up to it becomes the
current one at some point.
In IEEE 802.1Q terms, it means that we have support for the
"Oper" (current and read-only) and "Admin" (future and mutable)
schedules.
Example of creating the first schedule, then adding a new one:
(1)
tc qdisc add dev IFACE parent root handle 100 taprio \
num_tc 1 \
map 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 \
queues 1@0 \
sched-entry S 0x1 1000000 \
sched-entry S 0x0 2000000 \
sched-entry S 0x1 3000000 \
sched-entry S 0x0 4000000 \
base-time 100000000 \
clockid CLOCK_TAI
(2)
tc qdisc change dev IFACE parent root handle 100 taprio \
base-time 7500000000000 \
sched-entry S 0x0 5000000 \
sched-entry S 0x1 5000000 \
It was necessary to fix a bug, so the clockid doesn't need to be
specified when changing the schedule.
Most of the changes are related to make it easier to reuse the same
function for printing the "admin" and "oper" schedules.
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
|
||
|---|---|---|
| bash-completion | ||
| bridge | ||
| devlink | ||
| doc/actions | ||
| etc/iproute2 | ||
| examples | ||
| genl | ||
| include | ||
| ip | ||
| lib | ||
| man | ||
| misc | ||
| netem | ||
| rdma | ||
| schema | ||
| tc | ||
| testsuite | ||
| tipc | ||
| .clang-format | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| Makefile | ||
| README | ||
| README.devel | ||
| README.distribution | ||
| README.iproute2+tc | ||
| README.lnstat | ||
| configure | ||
README
This is a set of utilities for Linux networking.
Information:
https://wiki.linuxfoundation.org/networking/iproute2
Download:
http://www.kernel.org/pub/linux/utils/net/iproute2/
Stable version repository:
git://git.kernel.org/pub/scm/network/iproute2/iproute2.git
Development repository:
git://git.kernel.org/pub/scm/network/iproute2/iproute2-next.git
How to compile this.
--------------------
1. libdbm
arpd needs to have the berkeleydb development libraries. For Debian
users this is the package with a name like libdbX.X-dev.
DBM_INCLUDE points to the directory with db_185.h which
is the include file used by arpd to get to the old format Berkeley
database routines. Often this is in the db-devel package.
2. make
The makefile will automatically build a config.mk file which
contains definitions of libraries that may or may not be available
on the system such as: ATM, ELF, MNL, and SELINUX.
3. To make documentation, cd to doc/ directory , then
look at start of Makefile and set correct values for
PAGESIZE=a4 , ie: a4 , letter ... (string)
PAGESPERPAGE=2 , ie: 1 , 2 ... (numeric)
and make there. It assumes, that latex, dvips and psnup
are in your path.
4. This package includes matching sanitized kernel headers because
the build environment may not have up to date versions. See Makefile
if you have special requirements and need to point at different
kernel include files.
Stephen Hemminger
stephen@networkplumber.org
Alexey Kuznetsov
kuznet@ms2.inr.ac.ru