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Move the Data Path (DP)-specific fields from ath12k_vif into a new structure ath12k_dp_vif, embedded within ath12k_vif. This new structure contains an array of per-link DP fields represented by ath12k_dp_link_vif. Since dp_link_vif is small and frequently accessed from ahvif during Tx, it is stored as an array of structs rather than an array of pointers to avoid additional indirections and improve cache efficiency. However, this design comes with a trade-off: because the array is not pointer-based, it increases memory usage. Per packet data path makes use of ath12k_dp_vif and ath12k_dp_link_vif. Add pdev_idx and lmac_id in ath12k_dp_link_vif to avoid accessing ar in dp tx. Diagrammatic view of the new structure is below: +--------------------------------+ | struct ath12k_vif | | | | +--------------------------+ | | | struct ath12k_dp_vif | | | | | | | | +--------------------+ | | | | | ath12k_dp_link_vif | | | | | +--------------------+ | | | | | | | | +--------------------+ | | | | | ath12k_dp_link_vif | | | | | +--------------------+ | | | | | | | | +--------------------+ | | | | | ath12k_dp_link_vif | | | | | +--------------------+ | | | | | | | +--------------------------+ | | | +--------------------------------+ Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3 Signed-off-by: Harsh Kumar Bijlani <quic_hbijlani@quicinc.com> Signed-off-by: Ripan Deuri <quic_rdeuri@quicinc.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Reviewed-by: Baochen Qiang <baochen.qiang@oss.qualcomm.com> Link: https://patch.msgid.link/20250930131005.2884253-7-quic_rdeuri@quicinc.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.