[PATCH v1 0/2] doc: bbdev clarifications

[PATCH v1 0/2] doc: bbdev clarifications

[Nicolas Chautru]

Hi, 
Some minor clarifications to document based on 
feedback from users.
Thanks
Nic

Nicolas Chautru (2):
  doc: clarify CB vs TB level device support
  doc: clarify the window index usage in bbdev

 doc/guides/bbdevs/acc100.rst        | 1 +
 doc/guides/bbdevs/fpga_5gnr_fec.rst | 1 +
 doc/guides/bbdevs/fpga_lte_fec.rst  | 1 +
 doc/guides/bbdevs/vrb1.rst          | 1 +
 doc/guides/bbdevs/vrb2.rst          | 2 ++
 doc/guides/prog_guide/bbdev.rst     | 7 +++++--
 6 files changed, 11 insertions(+), 2 deletions(-)

-- 
2.34.1

[PATCH v1 1/2] doc: clarify CB vs TB level device support

[Nicolas Chautru]

Clarify the support for different bbdev devices with regards
to code block vs transport block level processing which was
not explicit enough.

Signed-off-by: Nicolas Chautru <nicolas.chautru@intel.com>
---
 doc/guides/bbdevs/acc100.rst        | 1 +
 doc/guides/bbdevs/fpga_5gnr_fec.rst | 1 +
 doc/guides/bbdevs/fpga_lte_fec.rst  | 1 +
 doc/guides/bbdevs/vrb1.rst          | 1 +
 doc/guides/bbdevs/vrb2.rst          | 2 ++
 5 files changed, 6 insertions(+)

diff --git a/doc/guides/bbdevs/acc100.rst b/doc/guides/bbdevs/acc100.rst
index 6843e38c55..1621cc782f 100644
--- a/doc/guides/bbdevs/acc100.rst
+++ b/doc/guides/bbdevs/acc100.rst
@@ -17,6 +17,7 @@ ACC100 5G/4G FEC PMDs support the following features:
 - LDPC Decode in the UL (5GNR)
 - Turbo Encode in the DL (4G)
 - Turbo Decode in the UL (4G)
+- Support for code block level processing
 - 16 VFs per PF (physical device)
 - Maximum of 128 queues per VF
 - PCIe Gen-3 x16 Interface
diff --git a/doc/guides/bbdevs/fpga_5gnr_fec.rst b/doc/guides/bbdevs/fpga_5gnr_fec.rst
index 58d19ffbd2..b181527c45 100644
--- a/doc/guides/bbdevs/fpga_5gnr_fec.rst
+++ b/doc/guides/bbdevs/fpga_5gnr_fec.rst
@@ -16,6 +16,7 @@ FPGA 5GNR FEC PMD supports the following BBDEV capabilities:
 
 - LDPC Encode in the DL
 - LDPC Decode in the UL
+- Support for code block level processing
 - 8 VFs per PF (physical device)
 - Maximum of 32 UL queues per VF
 - Maximum of 32 DL queues per VF
diff --git a/doc/guides/bbdevs/fpga_lte_fec.rst b/doc/guides/bbdevs/fpga_lte_fec.rst
index 7e3748222c..990eeb087b 100644
--- a/doc/guides/bbdevs/fpga_lte_fec.rst
+++ b/doc/guides/bbdevs/fpga_lte_fec.rst
@@ -15,6 +15,7 @@ FPGA LTE FEC PMD supports the following features:
 
 - Turbo Encode in the DL with total throughput of 4.5 Gbits/s
 - Turbo Decode in the UL with total throughput of 1.5 Gbits/s assuming 8 decoder iterations
+- Support for code block level processing
 - 8 VFs per PF (physical device)
 - Maximum of 32 UL queues per VF
 - Maximum of 32 DL queues per VF
diff --git a/doc/guides/bbdevs/vrb1.rst b/doc/guides/bbdevs/vrb1.rst
index 255c4ea040..134dc246e7 100644
--- a/doc/guides/bbdevs/vrb1.rst
+++ b/doc/guides/bbdevs/vrb1.rst
@@ -30,6 +30,7 @@ These hardware blocks provide the following features exposed by the PMD:
 - LDPC Decode in the Uplink (5GNR)
 - Turbo Encode in the Downlink (4G)
 - Turbo Decode in the Uplink (4G)
+- Support for code block level processing
 - FFT processing
 - Single Root I/O Virtualization (SR-IOV) with 16 Virtual Functions (VFs) per Physical Function (PF)
 - Maximum of 256 queues per VF
diff --git a/doc/guides/bbdevs/vrb2.rst b/doc/guides/bbdevs/vrb2.rst
index 45c83e875f..ad67cc36a4 100644
--- a/doc/guides/bbdevs/vrb2.rst
+++ b/doc/guides/bbdevs/vrb2.rst
@@ -29,6 +29,8 @@ These hardware blocks provide the following features exposed by the PMD:
 - LDPC Decode in the Uplink (5GNR)
 - Turbo Encode in the Downlink (4G)
 - Turbo Decode in the Uplink (4G)
+- Support for code block level processing
+- Support for TB level processing for the LDPC Encode processing including CB concatenation.
 - FFT processing
 - MLD-TS processing
 - Single Root I/O Virtualization (SR-IOV) with 16 Virtual Functions (VFs) per Physical Function (PF)
-- 
2.34.1

[PATCH v1 2/2] doc: clarify the window index usage in bbdev

[Nicolas Chautru]

Clarify the usage, range and mapping for the set of window
indexes of each cyclic shift for the FFT processing pipeline.

Signed-off-by: Nicolas Chautru <nicolas.chautru@intel.com>
---
 doc/guides/prog_guide/bbdev.rst | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/doc/guides/prog_guide/bbdev.rst b/doc/guides/prog_guide/bbdev.rst
index 6f1f3f65fb..064c2b1fe6 100644
--- a/doc/guides/prog_guide/bbdev.rst
+++ b/doc/guides/prog_guide/bbdev.rst
@@ -296,8 +296,11 @@ Capabilities details for FFT function
 
 The total number of distinct time windows supported
 for the post-FFT point-wise multiplication is exposed as ``fft_windows_num``.
-The ``window_index`` provided for each cyclic shift
-in each ``rte_bbdev_op_fft`` operation is expected to be limited to that size.
+The ``window_index`` provided for each cyclic shift in each ``rte_bbdev_op_fft`` operation is
+expected to be within the range (0 to ``fft_windows_num`` - 1).
+These indexes for up to 12 cyclic shifts are mapped consecutively into an array of 6 bytes
+(ie. the first index is the first 4 most significant bits of the first byte, etc...):
+``uint8_t window_index[RTE_BBDEV_MAX_CS_2]``.
 
 The information related to the width of each of these pre-configured window
 is also exposed using the ``fft_window_width`` array.
-- 
2.34.1

Re: [PATCH v1 0/2] doc: bbdev clarifications

[Hemant Agrawal]

Series-

Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>

On 27-08-2025 01:13, Nicolas Chautru wrote:
> Hi,
> Some minor clarifications to document based on
> feedback from users.
> Thanks
> Nic
>
> Nicolas Chautru (2):
>    doc: clarify CB vs TB level device support
>    doc: clarify the window index usage in bbdev
>
>   doc/guides/bbdevs/acc100.rst        | 1 +
>   doc/guides/bbdevs/fpga_5gnr_fec.rst | 1 +
>   doc/guides/bbdevs/fpga_lte_fec.rst  | 1 +
>   doc/guides/bbdevs/vrb1.rst          | 1 +
>   doc/guides/bbdevs/vrb2.rst          | 2 ++
>   doc/guides/prog_guide/bbdev.rst     | 7 +++++--
>   6 files changed, 11 insertions(+), 2 deletions(-)
>