diff mbox series

[v2,1/7] bbdev: add FFT version member in driver info

Message ID 20230921204349.3285318-2-nicolas.chautru@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Maxime Coquelin
Headers
Series VRB2 bbdev PMD introduction |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Chautru, Nicolas Sept. 21, 2023, 8:43 p.m. UTC 
  This can be used to distinguish different version of the
flexible pointwise windowing applied to the FFT and expose
this platform configuration to the application.

The SRS processing chain
(https://doc.dpdk.org/guides/prog_guide/bbdev.html#bbdev-fft-operation)
includes a pointwise multiplication by time window whose degrees of
liberty cannot be exposed through a standard fixed API but through a hash
matching a version of such window definition (not HW IP specific)
defined as a long array of complex numbers.
Using that mechanism user application can retrieve information related
to what tables have been dynamically programmed on any bbdev device
supporting FFT windowing operation.

Signed-off-by: Nicolas Chautru <nicolas.chautru@intel.com>
---
 lib/bbdev/rte_bbdev.h | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/lib/bbdev/rte_bbdev.h b/lib/bbdev/rte_bbdev.h
index 2985c9f42b..e1ba038e0d 100644
--- a/lib/bbdev/rte_bbdev.h
+++ b/lib/bbdev/rte_bbdev.h
@@ -349,6 +349,8 @@  struct rte_bbdev_driver_info {
 	const struct rte_bbdev_op_cap *capabilities;
 	/** Device cpu_flag requirements */
 	const enum rte_cpu_flag_t *cpu_flag_reqs;
+	/** Versioning number for the FFT configured on the device. */
+	uint16_t fft_version;
 };
 
 /** Macro used at end of bbdev PMD list */