This patch series addresses issues related to DMA buffer allocation in the driver, specifically targeting systems without IOMMU that use SWIOTLB. The current implementation leads to "swiotlb buffer is full" errors and driver initialization failures. The patches aim to resolve these issues by replacing the flawed buffer allocation mechanism with the appropriate DMA API. Note: This issue was reported on the ath11k public mailing list (Re: ath11k swiotlb buffer is full on IMX8M with 4GiB DRAM). Although I couldn't get a local setup with swiotlb configuration similar to the reporter's, I have validated the ring setup and peer TID setup where these changes are present. P Praneesh (2): wifi: ath11k: Fix DMA buffer allocation to resolve SWIOTLB issues wifi: ath11k: Use dma_alloc_noncoherent for rx_tid buffer allocation drivers/net/wireless/ath/ath11k/dp.c | 35 +++---- drivers/net/wireless/ath/ath11k/dp.h | 6 +- drivers/net/wireless/ath/ath11k/dp_rx.c | 117 +++++++++++------------- 3 files changed, 69 insertions(+), 89 deletions(-) base-commit: 6a5fe6aaedcfadf8e32dd703ec20b1460523c22d -- 2.34.1
