net: ethernet: microchip: lan743x: Fix dma allocation failure by usin…

…g dma_set_mask_and_coherent

stable inclusion
from stable-5.10.77
commit c2af2092c9bbb33c0131a8aca5b8f6db7c223d08
bugzilla: 185677 https://gitee.com/openeuler/kernel/issues/I4IAP7

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=c2af2092c9bbb33c0131a8aca5b8f6db7c223d08

--------------------------------

commit 95a359c upstream.

The dma failure was reported in the raspberry pi github (issue #4117).
raspberrypi/linux#4117
The use of dma_set_mask_and_coherent fixes the issue.
Tested on 32/64-bit raspberry pi CM4 and 64-bit ubuntu x86 PC with EVB-LAN7430.

Fixes: 23f0703 ("lan743x: Add main source files for new lan743x driver")
Signed-off-by: Yuiko Oshino <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Chen Jun <[email protected]>
Acked-by: Weilong Chen <[email protected]>

Signed-off-by: Chen Jun <[email protected]>
Signed-off-by: Zheng Zengkai <[email protected]>

drivers/net/ethernet/microchip/lan743x_main.c

@@ -1770,6 +1770,16 @@ static int lan743x_tx_ring_init(struct lan743x_tx *tx)
 		ret = -EINVAL;
 		goto cleanup;
 	}
+	if (dma_set_mask_and_coherent(&tx->adapter->pdev->dev,
+				      DMA_BIT_MASK(64))) {
+		if (dma_set_mask_and_coherent(&tx->adapter->pdev->dev,
+					      DMA_BIT_MASK(32))) {
+			dev_warn(&tx->adapter->pdev->dev,
+				 "lan743x_: No suitable DMA available\n");
+			ret = -ENOMEM;
+			goto cleanup;
+		}
+	}
 	ring_allocation_size = ALIGN(tx->ring_size *
 				     sizeof(struct lan743x_tx_descriptor),
 				     PAGE_SIZE);
@@ -2318,6 +2328,16 @@ static int lan743x_rx_ring_init(struct lan743x_rx *rx)
 		ret = -EINVAL;
 		goto cleanup;
 	}
+	if (dma_set_mask_and_coherent(&rx->adapter->pdev->dev,
+				      DMA_BIT_MASK(64))) {
+		if (dma_set_mask_and_coherent(&rx->adapter->pdev->dev,
+					      DMA_BIT_MASK(32))) {
+			dev_warn(&rx->adapter->pdev->dev,
+				 "lan743x_: No suitable DMA available\n");
+			ret = -ENOMEM;
+			goto cleanup;
+		}
+	}
 	ring_allocation_size = ALIGN(rx->ring_size *
 				     sizeof(struct lan743x_rx_descriptor),
 				     PAGE_SIZE);