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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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81c7288b17
Currently, when the rule is not to be exclusively executed by the hardware, extack is not passed along and offloading failures don't get logged. The idea was that hardware failures are okay because the rule will get executed in software then and this way it doesn't confuse unware users. But this is not helpful in case one needs to understand why a certain rule failed to get offloaded. Considering it may have been a temporary failure, like resources exceeded or so, reproducing it later and knowing that it is triggering the same reason may be challenging. The ultimate goal is to improve Open vSwitch debuggability when using flower offloading. This patch adds a new flag to enable verbose logging. With the flag set, extack will be passed to the driver, which will be able to log the error. As the operation itself probably won't fail (not because of this, at least), current iproute will already log it as a Warning. The flag is generic, so it can be reused later. No need to restrict it just for HW offloading. The command line will follow the syntax that tc-ebpf already uses, tc ... [ verbose ] ... , and extend its meaning. For example: # ./tc qdisc add dev p7p1 ingress # ./tc filter add dev p7p1 parent ffff: protocol ip prio 1 \ flower verbose \ src_mac ed:13:db:00:00:00 dst_mac 01:80:c2:00:00:d0 \ src_ip 56.0.0.0 dst_ip 55.0.0.0 action drop Warning: TC offload is disabled on net device. # echo $? 0 # ./tc filter add dev p7p1 parent ffff: protocol ip prio 1 \ flower \ src_mac ff:13:db:00:00:00 dst_mac 01:80:c2:00:00:d0 \ src_ip 56.0.0.0 dst_ip 55.0.0.0 action drop # echo $? 0 Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| Documentation | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
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| MAINTAINERS | ||
| Makefile | ||
| README | ||
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.