Hello Steffen, On 28.11.23 17:29, Steffen Trumtrar wrote: > + writel(ctrl, &macb->tx_ring[tx_head].ctrl); > + writel((ulong)packet, &macb->tx_ring[tx_head].addr); > dma_sync_single_for_device(macb->dev, (unsigned long)packet, length, > DMA_TO_DEVICE);
For this buffer dma_map_single is missing. I just sent out a series to implement CONFIG_DMA_API_DEBUG by the way that should catch this (as well as the original issue in the Rx path). > - macb->gem_q1_descs[0].addr = 0; > - macb->gem_q1_descs[0].ctrl = MACB_BIT(TX_WRAP) | > - MACB_BIT(TX_LAST) | MACB_BIT(TX_USED); > + writel(0, &macb->gem_q1_descs[0].addr); > + setbits_le32(&macb->gem_q1_descs[0].ctrl, > + MACB_BIT(TX_WRAP) | MACB_BIT(TX_LAST) | MACB_BIT(TX_USED)); Should be writel to maintain previous semantics. > - macb->tx_ring[TX_RING_SIZE - 1].addr |= MACB_BIT(TX_WRAP); > + writel(MACB_BIT(TX_WRAP), &macb->tx_ring[TX_RING_SIZE - 1].addr); Should be a setbits_le32 to maintain previous semantics. > /* Disable the second priority rx queue */ > - macb->gem_q1_descs[1].addr = MACB_BIT(RX_USED) | > - MACB_BIT(RX_WRAP); > - macb->gem_q1_descs[1].ctrl = 0; > + setbits_le32(&macb->gem_q1_descs[1].addr, > + MACB_BIT(RX_USED) | MACB_BIT(RX_WRAP)); Should be a writel to maintain previous semantics. > + writel(0, &macb->gem_q1_descs[1].ctrl); > > gem_writel(macb, RQ1, (ulong)&macb->gem_q1_descs[1]); > } > Cheers, Ahmad -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
