When we are sending a network pkt, do not tweak the original
packet but the cloned one. The original behavior is ok too, but
logically we should adjust the cloned packet only that is being
received by the stack. This also means that we avoid one extra
copy to tmp variable when sending the packet.
Signed-off-by: Jukka Rissanen <jukka.rissanen@nordicsemi.no>
A proper netmask should be set on the loopback interface, so that
source address selection work properly when there are multiple
interfaces in the system.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
If we are dropping packets, then drop then early without the clone, this
improves zperf performance.
Signed-off-by: Krishna T <krishna.t@nordicsemi.no>
When the loopback drops driver packets, the number of dropped
packets is counted and can be requested externally.
Signed-off-by: Sjors Hettinga <s.a.hettinga@gmail.com>
In order to bring consistency in-tree, migrate all drivers to the new
prefix <zephyr/...>. Note that the conversion has been scripted, refer
to #45388 for more details.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
To allow for high level robustness tests on protocols, add an interface
to control the packet drop rate. A rate of 0 means no packet dropped, a
rate of 1 means all packets being dropped.
Signed-off-by: Sjors Hettinga <s.a.hettinga@gmail.com>
net_pkt_alloc_buffer() will use the maximum packet length of
NET_IPV4_MTU in case the interface MTU is smaller than this. Because of
this, the using the loopback interface with smaller MTU leads to
additional fragmentation at the TCP layer, which impacts performace and
requires more network buffers for tests to execute.
Fix this by matching the loopback interface MTU with NET_IPV4_MTU.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Replace unpacked in6_addr structures with raw buffers in net_ipv6_hdr
struct, to prevent compiler warnings about unaligned access.
Remove __packed parameter from `struct net_6lo_context` since the
structure isn't really serialized.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Replace unpacked in_addr structures with raw buffers in net_ipv4_hdr
struct, to prevent compiler warnings about unaligned access.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Now that device_api attribute is unmodified at runtime, as well as all
the other attributes, it is possible to switch all device driver
instance to be constant.
A coccinelle rule is used for this:
@r_const_dev_1
disable optional_qualifier
@
@@
-struct device *
+const struct device *
@r_const_dev_2
disable optional_qualifier
@
@@
-struct device * const
+const struct device *
Fixes#27399
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
By changing the various *NET_DEVICE* macros. It is up to the device
drivers to either set a proper PM function or, if not supported or PM
disabled, to use device_pm_control_nop relevantly.
All existing macro calls are updated. Since no PM support was added so
far, device_pm_control_nop is used as the default everywhere.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Convert couple of MSEC() calls to K_MSEC() as the timeouts
when using MSEC() are just too long.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
We had a typo in the Kconfig symbol that was being used to try and set
SYS_LOG_LEVEL. It should be CONFIG_SYS_LOG_NET_LOOPBACK_LEVEL.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
If we could not send the packet, then do not release the net_pkt
as that will be released in net_if.c:net_if_tx() if driver send()
fails.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Instead of passing net_pkt as is to the receiving side of the
interface, clone the sent packet and drop the sent one.
This is needed mainly in TCP where passing the same packet from
sending to receiving side is causing havoc.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Loopback is a networking interface which doesn't actually transfer
any data via link layer externally, and instead just mirrors back
(i.e. any packet send to the loopback interface will be received from
it). This interface very useful for testing.
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
