From: Vamsi Attunuru <vattun...@marvell.com> Modern DMA hardware supports data transfer between multiple DMA devices, enabling data communication across isolated domains or containers. To facilitate this, the ``dmadev`` library requires changes to allow devices to register with or unregisters from DMA groups for inter-device communication. This feature is planned for inclusion in DPDK 25.11.
Signed-off-by: Vamsi Attunuru <vattun...@marvell.com> --- doc/guides/rel_notes/deprecation.rst | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst index e2d4125308..46836244dd 100644 --- a/doc/guides/rel_notes/deprecation.rst +++ b/doc/guides/rel_notes/deprecation.rst @@ -152,3 +152,10 @@ Deprecation Notices * bus/vmbus: Starting DPDK 25.11, all the vmbus API defined in ``drivers/bus/vmbus/rte_bus_vmbus.h`` will become internal to DPDK. Those API functions are used internally by DPDK core and netvsc PMD. + +* dmadev: a new capability flag ``RTE_DMA_CAPA_INTER_DEV`` will be added + to advertise DMA device's inter-device DMA copy capability. To enable + this functionality, a few dmadev APIs will be added to configure the DMA + access groups, facilitating coordinated data communication between devices. + A new ``dev_idx`` field will be added to the ``struct rte_dma_vchan_conf`` + structure to configure a vchan for data transfers between any two DMA devices. -- 2.34.1
