| Message ID | 20240416082330.82564-1-nbd@nbd.name (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [net] net: ethernet: mtk_eth_soc: fix WED + wifi reset | expand |
Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski <kuba@kernel.org>: On Tue, 16 Apr 2024 10:23:29 +0200 you wrote: > The WLAN + WED reset sequence relies on being able to receive interrupts from > the card, in order to synchronize individual steps with the firmware. > When WED is stopped, leave interrupts running and rely on the driver turning > off unwanted ones. > WED DMA also needs to be disabled before resetting. > > Fixes: f78cd9c783e0 ("net: ethernet: mtk_wed: update mtk_wed_stop") > Signed-off-by: Felix Fietkau <nbd@nbd.name> > > [...] Here is the summary with links: - [net] net: ethernet: mtk_eth_soc: fix WED + wifi reset https://git.kernel.org/netdev/net/c/94667949ec3b You are awesome, thank you!
diff --git a/drivers/net/ethernet/mediatek/mtk_wed.c b/drivers/net/ethernet/mediatek/mtk_wed.c index c895e265ae0e..61334a71058c 100644 --- a/drivers/net/ethernet/mediatek/mtk_wed.c +++ b/drivers/net/ethernet/mediatek/mtk_wed.c @@ -1074,13 +1074,13 @@ mtk_wed_dma_disable(struct mtk_wed_device *dev) static void mtk_wed_stop(struct mtk_wed_device *dev) { + mtk_wed_dma_disable(dev); mtk_wed_set_ext_int(dev, false); wed_w32(dev, MTK_WED_WPDMA_INT_TRIGGER, 0); wed_w32(dev, MTK_WED_WDMA_INT_TRIGGER, 0); wdma_w32(dev, MTK_WDMA_INT_MASK, 0); wdma_w32(dev, MTK_WDMA_INT_GRP2, 0); - wed_w32(dev, MTK_WED_WPDMA_INT_MASK, 0); if (!mtk_wed_get_rx_capa(dev)) return; @@ -1093,7 +1093,6 @@ static void mtk_wed_deinit(struct mtk_wed_device *dev) { mtk_wed_stop(dev); - mtk_wed_dma_disable(dev); wed_clr(dev, MTK_WED_CTRL, MTK_WED_CTRL_WDMA_INT_AGENT_EN | @@ -2605,9 +2604,6 @@ mtk_wed_irq_get(struct mtk_wed_device *dev, u32 mask) static void mtk_wed_irq_set_mask(struct mtk_wed_device *dev, u32 mask) { - if (!dev->running) - return; - mtk_wed_set_ext_int(dev, !!mask); wed_w32(dev, MTK_WED_INT_MASK, mask); }
The WLAN + WED reset sequence relies on being able to receive interrupts from the card, in order to synchronize individual steps with the firmware. When WED is stopped, leave interrupts running and rely on the driver turning off unwanted ones. WED DMA also needs to be disabled before resetting. Fixes: f78cd9c783e0 ("net: ethernet: mtk_wed: update mtk_wed_stop") Signed-off-by: Felix Fietkau <nbd@nbd.name> --- drivers/net/ethernet/mediatek/mtk_wed.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)