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| Filename | Latest commit message | Latest commit date |
|---|---|---|
0de94de180
Roman Mashak says:
====================
Fix batched event generation for skbedit action
When adding or deleting a batch of entries, the kernel sends up to
TCA_ACT_MAX_PRIO (defined to 32 in kernel) entries in an event to user
space. However it does not consider that the action sizes may vary and
require different skb sizes.
For example, consider the following script adding 32 entries with all
supported skbedit parameters and cookie (in order to maximize netlink
messages size):
% cat tc-batch.sh
TC="sudo /mnt/iproute2.git/tc/tc"
$TC actions flush action skbedit
for i in `seq 1 $1`;
do
cmd="action skbedit queue_mapping 2 priority 10 mark 7/0xaabbccdd \
ptype host inheritdsfield \
index $i cookie aabbccddeeff112233445566778800a1 "
args=$args$cmd
done
$TC actions add $args
%
% ./tc-batch.sh 32
Error: Failed to fill netlink attributes while adding TC action.
We have an error talking to the kernel
%
patch 1 adds callback in tc_action_ops of skbedit action, which calculates
the action size, and passes size to tcf_add_notify()/tcf_del_notify().
patch 2 updates the TDC test suite with relevant skbedit test cases.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.