This patchset introduce a mechanism for running dpdk application with parameters
provided by configuration file.
A new API for EAL takes a config file data type - either loaded from file,
or built up programmatically in the application - and extracts DPDK parameters
from it to be used when eal init is called. This allows apps to have
an alternative method to configure EAL, other than via command-line parameters.
Testpmd application is used to the demonstrate the new eal API.
If a --cfgfile-path <path> option is passed into command line non EAL section,
then the file is loaded and used by app. If a file called config.ini
is present in current working directory, and no --cfgfile-path option is
passed in, config.ini file will be loaded and used by app.
Last patch demonstrates the usage of JSON file format insted of config.ini
JSON file can be called the same way as above, thru --cfgfile-path <path>
---
v3:
split one patchset into two distinct patchsets:
1. cfgfile library and TEST app changes
2. EAL changes and examples (this patchset depends on cfgfile)
v2:
lib eal:
Rework of rte_eal_configure(struct rte_cfgfile *cfg, char *prgname).
Now this function load data from cfg structure and did initial
initialization of EAL arguments. Vdev argument are stored in different
subsections eg. DPDK.vdev0, DPDK.vdev1 etc. After execution of this
function it is necessary to call rte_eal_init to complete EAL
initialization. There is no more merging arguments from different
sources (cfg file and command line).
Added non_eal_configure to testpmd application.
Function maintain the same functionality as rte_eal_configure but
for non-eal arguments.
Added config JSON feature to testpmd last patch from patchset contain
example showing use of .json configuration files.
lib cfgfile:
Rework of add_section(), add_entry() new implementation
New members allocated_entries/sections, free_entries/sections
in rte_cfgfile structure, change in array of pointers
**sections, **entries instead of *sections[], *entries[]
Add set_entry() to update/overwrite already existing entry in cfgfile
struct
Add save() function to save on disc cfgfile structure in INI format
Rework of existing load() function simplifying the code
Add unit test realloc_sections() in TEST app for testing realloc/malloc
of new API functions, add test for save() function
Kuba Kozak (3):
eal: add functions parsing EAL arguments
app/testpmd: changed example to parse options from cfg file
app/testpmd: add parse arguments from JSON config file
app/test-pmd/Makefile | 6 +
app/test-pmd/config.ini | 24 +
app/test-pmd/config.json | 33 +
app/test-pmd/parameters.c | 1193 +++++++++++++----------
app/test-pmd/testpmd.c | 159 ++-
app/test-pmd/testpmd.h | 3 +-
config/common_base | 6 +
lib/Makefile | 6 +-
lib/librte_eal/bsdapp/eal/Makefile | 4 +
lib/librte_eal/bsdapp/eal/eal.c | 249 ++++-
lib/librte_eal/bsdapp/eal/rte_eal_version.map | 4 +
lib/librte_eal/common/eal_common_cpuflags.c | 14 +-
lib/librte_eal/common/eal_common_lcore.c | 11 +-
lib/librte_eal/common/eal_common_options.c | 5 +
lib/librte_eal/common/include/rte_eal.h | 21 +
lib/librte_eal/linuxapp/eal/Makefile | 3 +
lib/librte_eal/linuxapp/eal/eal.c | 353 +++++--
lib/librte_eal/linuxapp/eal/rte_eal_version.map | 4 +
mk/rte.app.mk | 2 +-
19 files changed, 1469 insertions(+), 631 deletions(-)
create mode 100644 app/test-pmd/config.ini
create mode 100644 app/test-pmd/config.json
--
2.7.4
