[dpdk-dev] [PATCH v4 0/5] eal: enable global device syntax by default
Xueming Li
xuemingl at nvidia.com
Sat Apr 10 16:23:52 CEST 2021
The new Global Device Syntax [1] is used to identify a device with full
bus, class and driver description, example:
-a bus=pci,addr=82:00.0/class=eth/driver=mlx5,...
This patchset fixes bugs and enable global device syntax with
backward compatibility by:
- unify devargs memory buffer cleanup
- parse name from bus driver callback api
- try new global syntax parsing firstly and fallback to legacy parsing.
History:
V1:
- Inital version
V2:
- add devargs.src as complete source dev string
- change devargs.data to scratch buffer
- add rte_devargs_free() to release scratch memory
- change name policy to align with rte_eth_iterator_init()
- remove PCI bus fix as name already resolved in rte_devargs_parse().
V3:
- remove devargs.src
- rename rte_devargs_free() to rte_devargs_reset()
- add bus callback api to resolve devargs.
V4:
- add RTE_DEVARGS_KEY_BUS/CLASS/DIRVER macro
- parsing "name" by default if no bus devargs parsing callback
- Minor fixes suggested by Ray and Thomas
[1] Global Device Syntax:
https://www.dpdk.org/wp-content/uploads/sites/35/2018/10/am-07-DPDK-hotplug-20180905.pdf
[2] RFC:
http://patchwork.dpdk.org/project/dpdk/list/?series=14378
[3] V1:
http://patchwork.dpdk.org/project/dpdk/list/?series=14610
[4] V2:
http://patchwork.dpdk.org/project/dpdk/list/?series=14816
[5] V3:
http://patchwork.dpdk.org/project/dpdk/list/?series=15979
Xueming Li (5):
devargs: unify scratch buffer storage
devargs: fix memory leak on parsing error
kvargs: add get by key function
bus: add device arguments name parsing API
devargs: parse global device syntax
app/test-pmd/config.c | 3 +-
app/test-pmd/testpmd.c | 5 +-
doc/guides/rel_notes/release_21_05.rst | 6 ++
drivers/bus/pci/pci_common.c | 1 +
drivers/bus/pci/pci_params.c | 47 ++++++++++
drivers/bus/pci/private.h | 14 +++
drivers/bus/vdev/vdev.c | 9 +-
drivers/net/failsafe/failsafe_args.c | 3 +-
drivers/net/failsafe/failsafe_eal.c | 2 +-
examples/multi_process/hotplug_mp/commands.c | 6 +-
lib/librte_eal/common/eal_common_dev.c | 9 +-
lib/librte_eal/common/eal_common_devargs.c | 91 +++++++++++++++-----
lib/librte_eal/common/hotplug_mp.c | 6 +-
lib/librte_eal/include/rte_bus.h | 18 ++++
lib/librte_eal/include/rte_devargs.h | 22 ++++-
lib/librte_eal/rte_eal_exports.def | 1 +
lib/librte_eal/version.map | 1 +
lib/librte_ethdev/rte_ethdev.c | 9 +-
lib/librte_kvargs/rte_kvargs.c | 20 +++++
lib/librte_kvargs/rte_kvargs.h | 21 +++++
lib/librte_kvargs/version.map | 3 +
21 files changed, 245 insertions(+), 52 deletions(-)
--
2.25.1
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