[PATCH v2 0/4] dma/cnxk: add CN20K (O20) DPI DMA and inter-process domain support

[Vamsi Krishna]

From: Vamsi Attunuru <vattunuru at marvell.com>

This series adds DMA support for Marvell CN20K (O20) DPI hardware to the
existing cnxk dmadev driver, building on the common ROC DPI layer used by
CN9K/CN10K.

CN20K DPI is LF and ring-based: commands are posted to per-LF hardware
queues rather than the legacy VF chunk-buffer model. The series introduces
the ROC infrastructure for LF attach/detach, ring configuration, channel
table management, and access-pair group mailbox operations, then wires the
dmadev PMD to expose copy, copy-SG, fill, and enqueue/dequeue on O20.

Patch 1 lays the common foundation. Patch 2 integrates O20 into the dmadev
fast and slow paths. Patch 3 adds inter-process domain DMA on top of the
O20 path using the dmadev access-pair group API.

Vamsi Attunuru (4):
  common/cnxk: add O20 DPI DMA support
  dma/cnxk: add O20 DPI DMA support
  dma/cnxk: enable inter process domain DMA support
  doc: update 26.11 release notes for cnxk dmadev
---
V2 changes:
* updated doc/guides/dmadevs/cnxk.rst
* updated cnxk base driver to use plt_ symbols
* changed rte_wmb() to rte_io_wmb()
* updated doc/guides/rel_notes/release_26_11.rst

 doc/guides/dmadevs/cnxk.rst                   | 138 +++-
 doc/guides/rel_notes/release_26_11.rst        |  17 +
 drivers/common/cnxk/hw/dpi.h                  |  72 +-
 drivers/common/cnxk/hw/rvu.h                  |   2 +
 drivers/common/cnxk/roc_constants.h           |   2 +
 drivers/common/cnxk/roc_dev.c                 |   1 +
 drivers/common/cnxk/roc_dpi.c                 | 683 +++++++++++++++++-
 drivers/common/cnxk/roc_dpi.h                 |  85 +++
 drivers/common/cnxk/roc_dpi_priv.h            |  34 +
 drivers/common/cnxk/roc_mbox.h                | 174 ++++-
 drivers/common/cnxk/roc_platform.h            |  10 +
 .../common/cnxk/roc_platform_base_symbols.c   |  17 +
 drivers/dma/cnxk/cnxk_dmadev.c                | 676 ++++++++++++++++-
 drivers/dma/cnxk/cnxk_dmadev.h                |  73 +-
 drivers/dma/cnxk/cnxk_dmadev_fp.c             | 232 +++++-
 15 files changed, 2166 insertions(+), 50 deletions(-)

-- 
2.34.1