Karthikeyan Periyasamy <quic_periyasa@xxxxxxxxxxx> wrote: > Currently, data path Rx descriptor placed in the CMEM memory respective > to the Rx offset. This Rx descriptor CMEM placement is not meeting the > requirements to support inter device MLO. In inter device MLO, multiple > devices participate in a group. The device specific Rx descriptor buffers > transmit to multiple device REO rings. To distinguish between device > specific Rx descriptor buffers, the CMEM setup configuration need to > choose a different placement based on the unique identifier (device index). > > Below are the CMEM configuration placement representation: > > Intra-Device MLO scenario: > > Device 0 Device 1 > > +-------------+ +-------------+ > | | | | > | Tx | | Tx | > | | | | > +-------------+ +-------------+ > | | | | > | Rx | | Rx | > | | | | > +-------------+ +-------------+ > > Inter-Device MLO scenario: > > Device 0 Device 1 > > +-------------+ +-------------+ > | | | | > | Tx | | Tx | > | | | | > +-------------+ +-------------+ > | | | | > | Rx | | Reserved | > | Device 0 | | | > | | | | > +-------------+ +-------------+ > | | | Rx | > | Reserved | | Device 1 | > | | | | > +-------------+ +-------------+ > > Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-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: Karthikeyan Periyasamy <quic_periyasa@xxxxxxxxxxx> > Acked-by: Jeff Johnson <quic_jjohnson@xxxxxxxxxxx> > Signed-off-by: Kalle Valo <quic_kvalo@xxxxxxxxxxx> 2 patches applied to ath-next branch of ath.git, thanks. 4f82a8d5c277 wifi: ath12k: refactor rx descriptor CMEM configuration 35864b62fa12 wifi: ath12k: improve the rx descriptor error information -- https://patchwork.kernel.org/project/linux-wireless/patch/20240516000807.1704913-2-quic_periyasa@xxxxxxxxxxx/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
