The return value of the get link function call was not checked, and
could return a negative value indicating a failure. This meant the
link_status of the link being checked is invalid, because the link was
not filled with data. The return value is now checked, and if the return
value is not 0 for success, the loop continues with the next port.
To avoid confusion between variable names, the existing retval variable
is renamed to link_status, to better represent its use.
Coverity issue: 350348
Fixes: c8e6ceeceb ("examples/ioat: add new sample app for ioat driver")
Cc: stable@dpdk.org
Signed-off-by: Ciara Power <ciara.power@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
The nb_dq return value from the ioat dequeue is negative in failure
cases, however the variable was an unsigned int, causing the condition
where nb_dq <= 0 to never be true. This is now cast to a signed int,
which will successfully reflect the -1 value to be used in this
conditional check.
Coverity issue: 350342
Coverity issue: 350349
Fixes: 92c981637f ("examples/ioat: handle failure case for ioat dequeue")
Cc: stable@dpdk.org
Signed-off-by: Ciara Power <ciara.power@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
patch checks the return value of function rte_eth_dev_info_get,
if return value is negative error message printed on the console.
Coverity issue: 350361
Fixes: c8e6ceeceb ("examples/ioat: add new sample app for ioat driver")
Cc: stable@dpdk.org
Signed-off-by: Praveen Shetty <praveen.shetty@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
When searching for raw devices with the correct type, we check the driver
name using strcmp, without first checking that the call to info get
succeeded and assigned a value to that pointer.
If the call to get the device info fails, we can treat it as if the device
didn't match, and continue the loop, so the easiest fix is just to skip the
strcmp if the driver_name is null. [A non-null value from a previous failed
match is ok as it too causes the same behaviour of another loop iteration].
Coverity issue: 350353
Fixes: 2328542ed8 ("examples/ioat: add rawdev copy mode")
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
To get the amount of memory needed for stats, we call the xstats_get_names
function with a NULL parameter, which can return -1 on error. This negative
value was not previously handled correctly, so we adjust things to quit the
stats printing routine if this basic call fails.
Coverity issue: 350346
Fixes: 632bcd9b5d ("examples/ioat: print statistics")
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
On a failure with the ioat dequeue, -1 is returned, which was not properly
handled. This could lead to out-of-bounds reads on a later loop which
assumed a positive return value. Fix this by treating an error as though a
dequeue of 0 had been encountered.
Coverity issue: 350342
Coverity issue: 350349
Fixes: 2328542ed8 ("examples/ioat: add rawdev copy mode")
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Some versions of pkg-config don't support the --path flag, which is not a
fatal error when building the apps. Without the flag, the makefile just
cannot track the .pc file of DPDK as a dependency of the build. Therefore,
we can ignore the error and suppress it by redirecting to /dev/null the
stderr from that call to pkg-config.
Fixes: 22119c4591 ("examples: use pkg-config in makefiles")
Cc: stable@dpdk.org
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Tested-by: Ferruh Yigit <ferruh.yigit@intel.com>
Not all versions of pkg-config in distros have support for the
--define-prefix flag [1], causing errors when building examples manually or
with test-meson-builds.sh script [2].
For the former case, we need to remove the hard-coded use of the flag in
the Makefiles.
For the latter case, the flag is necessary for builds to succeed, so we
skip the tests when it's not present, passing it as part of the pkg-config
command if it is supported.
[1]
CentOS Linux release 7.7.1908 (Core)
pkg-config version 0.27.1
[2]
## Building cmdline
Unknown option --define-prefix
gmake: Entering directory
`...ild-x86-default/install-root/usr/local/share/dpdk/examples/cmdline'
rm -f build/cmdline build/cmdline-static build/cmdline-shared
test -d build && rmdir -p build || true
Unknown option --define-prefix
Unknown option --define-prefix
gcc -O3 main.c commands.c parse_obj_list.c -o build/cmdline-shared
main.c:14:28: fatal error: cmdline_rdline.h: No such file or directory
Fixes: ca9268529d ("examples: support relocated DPDK install")
Fixes: 7f80a2102b ("devtools: test pkg-config file")
Cc: stable@dpdk.org
Reported-by: Ferruh Yigit <ferruh.yigit@intel.com>
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Tested-by: Ferruh Yigit <ferruh.yigit@intel.com>
Added printing stats of ports each second. The stats printing is done
using master core. The information provided informs about packets
received, dropped and send as well as statistics of rawdev devices.
Signed-off-by: Marcin Baran <marcinx.baran@intel.com>
Signed-off-by: Pawel Modrak <pawelx.modrak@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Added possibility to use two lcores: first for packet receiving and
copying, second for packets sending.
Signed-off-by: Pawel Modrak <pawelx.modrak@intel.com>
Signed-off-by: Marcin Baran <marcinx.baran@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Added support for copying packets using rawdev device. Each port's Rx queue
is assigned DMA channel for copy.
Signed-off-by: Marcin Baran <marcinx.baran@intel.com>
Signed-off-by: Pawel Modrak <pawelx.modrak@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Added support for copying packets using software copy mode and MAC address
changing. The copies are processed using one lcore.
Signed-off-by: Marcin Baran <marcinx.baran@intel.com>
Signed-off-by: Pawel Modrak <pawelx.modrak@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
A new sample app demonstrating use of driver for CBDMA. The app receives
packets, performs software or hardware copy, changes packets' MAC addresses
(if enabled) and forwards them. The change covers ports initialization,
closing connection and argument parsing.
Signed-off-by: Pawel Modrak <pawelx.modrak@intel.com>
Signed-off-by: Marcin Baran <marcinx.baran@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
