Hi. On 24.10.2019 00:23, Lorenzo Bianconi wrote:
Various mt76x2e issues have been reported on U7612E mini-pcie card [1]. On U7612E-H1 PCIE_ASPM causes continuous mcu hangs and instability and so patch 1/2 disable it by default. Moreover mt76 does not properly unmap dma buffers for non-linear skbs. This issue may result in hw hangs if the system relies on IOMMU. Patch 2/2 fix the problem properly unmapping data fragments on non-linear skbs. [1]: https://lore.kernel.org/netdev/deaafa7a3e9ea2111ebb5106430849c6@xxxxxxxxxxxxxx/ Lorenzo Bianconi (2): mt76: mt76x2e: disable pcie_aspm by default mt76: dma: fix buffer unmap with non-linear skbs drivers/net/wireless/mediatek/mt76/dma.c | 10 ++-- drivers/net/wireless/mediatek/mt76/mmio.c | 47 +++++++++++++++++++ drivers/net/wireless/mediatek/mt76/mt76.h | 1 + .../net/wireless/mediatek/mt76/mt76x2/pci.c | 2 + 4 files changed, 57 insertions(+), 3 deletions(-)
Feel free to add my Reported-by: Oleksandr Natalenko <oleksandr@xxxxxxxxxxxxxx> Tested-by: Oleksandr Natalenko <oleksandr@xxxxxxxxxxxxxx> and thanks for the submission. -- Oleksandr Natalenko (post-factum)
