This patch fixes wrong error checking of rte_eal_parse_devargs_str().
Currently, a return value of strdup() is wrongly checked.
Fixes: 0fe11ec592b2 ("eal: add vdev init and uninit")
Signed-off-by: Tetsuya Mukawa <mukawa@igel.co.jp>
Acked-by: David Marchand <david.marchand@6wind.com>
'virtual' is a keyword and can't be used if the code is to compile with
C++ compilers.
If rte_devargs.h was included in C++ code, compilation with clang++
failed with an error. g++ did not fail, but only because of a bug
that treats it as an anonymous struct with a decl-specifier which it
ignores.
This simply renames the member to 'virt'.
Reported-by: Ming Zhao <mzhao@luminatewireless.com>
Signed-off-by: Christoph Gysin <christoph.gysin@gmail.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Acked-by: David Marchand <david.marchand@6wind.com>
This problem was discovered when passing invalid PCI id to the
blacklist API in devargs.
Any failures in rte_devargs_add would cause a core dump because
it would call rte_log() before the the EAL log environment was
initialized. Rather than try and log just remove the messages
and leave it up to the caller to check the return value.
Most of the other failure possibilities are when malloc() fails, and if
that happens any logging that used malloc() would also fail.
This failure was not caught by the standalone tests to devargs
because the tests are run after calling rte_eal_init (which is not
how devargs is intended to be used).
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
On failure devargs->args should not be accessed if devargs is NULL.
Fixes: c07691ae1089 ("devargs: remove limit on parameters length")
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Acked-by: David Marchand <david.marchand@6wind.com>
The patch adds following functions.
- rte_eal_vdev_init();
- rte_eal_vdev_uninit();
- rte_eal_parse_devargs_str().
These functions are used for driver initialization and finalization.
Signed-off-by: Tetsuya Mukawa <mukawa@igel.co.jp>
Following commit c07691ae1089, an implicit change has been done in the
devargs API.
This triggers problem in virtual pmds that did not check for parameters
validity as it was implicitely valid.
Fix this by restoring the empty argument as "" and add a note in the api.
Restore associated tests.
Fixes: c07691ae1089 ("devargs: remove limit on parameters length")
Reported-by: Tetsuya Mukawa <mukawa@igel.co.jp>
Signed-off-by: David Marchand <david.marchand@6wind.com>
Tested-by: Tetsuya Mukawa <mukawa@igel.co.jp>
As far as I know, there is no reason why we should have a limit on the length of
parameters that can be given for a device.
Remove this limit by using dynamic allocations.
Signed-off-by: David Marchand <david.marchand@6wind.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Prepare for next commit.
Fix some indent issues, refactor error code.
Signed-off-by: David Marchand <david.marchand@6wind.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
The DPDK dump functions are useful for remote debugging of an
applications. But when application runs as a daemon, stdout
is typically routed to /dev/null.
Instead change all these functions to take a stdio FILE * handle
instead. An application can then use open_memstream() to capture
the output.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
[Thomas: fix quota_watermark example]
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
This commit changes the API of --use-device command line argument.
It changes the separators from ';' to ','. Indeed, ';' is not the best
choice as this character is also used to separate shell commands,
forcing the user to surround arguments with quotes.
This commit impacts both devargs and kvargs as each of them define
a separator in --use-device argument:
- devargs defines the separator between the device name or pci_id and
its arguments
- kvargs defines the separator between each key/value pairs in
arguments for drivers using the kvargs API to parse their arguments
The modification of devargs and kvargs is done in one commit to keep
the coherency of --use-device.
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
This commit introduces a new API for storing device arguments given by
the user. It only adds the framework and the test. The modification of
EAL to use this new module is done in next commit.
The final goals:
- unify pci-blacklist, pci-whitelist, and virtual devices arguments
in one file
- allow to register a virtual device driver from a dpdk extension
provided as a shared library. For that we will require to remove
references to rte_pmd_ring and rte_pmd_pcap in argument parsing code
- clarify the API of eal_common_whitelist.c, and rework its code that is
often complex for no reason.
- support arguments for PCI devices and possibly future non-PCI devices
(other than virtual devices) without effort.
Test result:
echo 100 > /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages
echo 100 > /sys/devices/system/node/node1/hugepages/hugepages-2048kB/nr_hugepages
./app/test -c 0x15 -n 3 -m 64
RTE>>eal_flags_autotest
[...]
Test OK
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
