Bus control framework
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- v1 Latest8 patches 8 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/8 | bus: rename scan policy as probe policydrivers/ lib/ lib/ | +10 | 0 replies | |
| 2/8 | bus: introduce opaque control frameworklib/ lib/ | +55 | 5 replies | |
| 3/8 | bus: remove probe mode configuration structuredrivers/ lib/ lib/ | +1 | 0 replies | |
| 4/8 | bus: add probe mode setterlib/ lib/ lib/ | +44 | 2 replies | |
| 5/8 | bus/pci: implement ctrl operatordrivers/ drivers/ | +52 | 0 replies | |
| 6/8 | bus: add IOVA mode as a ctrl operationlib/ lib/ lib/ +1 more | +35 | 0 replies | |
| 7/8 | bus/pci: implement IOVA mode getterdrivers/ drivers/ drivers/ +2 more | +35 | 0 replies | |
| 8/8 | bus: remove redundant IOVA mode getterlib/ | +9 | 0 replies |
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Cover letter [PATCH v1 0/8] Bus control framework
Probing policy was introduced in the previous release as a configuration item. It was thus added to the generic bus structure, breaking its ABI.
In this release, the IOVA mode can be read from a bus to configure the EAL. This new configuration element also broke the bus ABI when it was added.
As new operators had to be implemented for the probe policy item, these patches were developed to help mitigate this issue.
This control framework allows to expand the rte_bus API without breaking its ABI. It is meant to be used with configuration elements that may only be valid for a few buses, while the others would remain untouched and unaware of the evolution.
A central control operator is used, similarly to the working of rte_flow API in the ether layer. Each driver thus chooses to expose a set of operators relevant to its implementation. The caller is then free to use those if they are available.
Both Probe mode and IOVA mode operators are implemented for the PCI bus.
This patchset depends on:
Move PCI away from the EAL
http://dpdk.org/ml/archives/dev/2017-August/073512.html
Gaetan Rivet (8):
bus: rename scan policy as probe policy
bus: introduce opaque control framework
bus: remove probe mode configuration structure
bus: add probe mode setter
bus/pci: implement ctrl operator
bus: add IOVA mode as a ctrl operation
bus/pci: implement IOVA mode getter
bus: remove redundant IOVA mode getter
drivers/bus/pci/bsd/pci.c | 9 +- drivers/bus/pci/include/rte_bus_pci.h | 12 +-- drivers/bus/pci/linux/pci.c | 20 ++-- drivers/bus/pci/pci_common.c | 53 +++++++++- drivers/bus/pci/private.h | 13 +++ lib/librte_eal/bsdapp/eal/rte_eal_version.map | 1 - lib/librte_eal/common/eal_common_bus.c | 57 +++++++++-- lib/librte_eal/common/eal_common_devargs.c | 8 -- lib/librte_eal/common/eal_common_options.c | 17 +--- lib/librte_eal/common/include/rte_bus.h | 127 ++++++++++++++++-------- lib/librte_eal/linuxapp/eal/rte_eal_version.map | 1 - 11 files changed, 222 insertions(+), 96 deletions(-)
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2.1.4