diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0092-dpaa_eth-base-dma-mappings-on-the-fman-rx-port.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/701-net-0092-dpaa_eth-base-dma-mappings-on-the-fman-rx-port.patch | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0092-dpaa_eth-base-dma-mappings-on-the-fman-rx-port.patch b/target/linux/layerscape/patches-5.4/701-net-0092-dpaa_eth-base-dma-mappings-on-the-fman-rx-port.patch new file mode 100644 index 0000000000..01cb5ed62b --- /dev/null +++ b/target/linux/layerscape/patches-5.4/701-net-0092-dpaa_eth-base-dma-mappings-on-the-fman-rx-port.patch @@ -0,0 +1,60 @@ +From 13296e938da191216395952cf49ddda96e67359c Mon Sep 17 00:00:00 2001 +From: Laurentiu Tudor <laurentiu.tudor@nxp.com> +Date: Thu, 5 Apr 2018 12:37:57 +0300 +Subject: [PATCH] dpaa_eth: base dma mappings on the fman rx port + +The dma transactions initiator is the rx fman port so that's the device +that the dma mappings should be done. Previously the mappings were done +through the MAC device which makes no sense because it's neither dma-able +nor connected in any way to smmu. + +Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> +Acked-by: Madalin Bucur <madalin.bucur@nxp.com> +--- + drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 18 +++++++++--------- + 1 file changed, 9 insertions(+), 9 deletions(-) + +--- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c ++++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c +@@ -2978,8 +2978,15 @@ static int dpaa_eth_probe(struct platfor + return -ENODEV; + } + ++ mac_dev = dpaa_mac_dev_get(pdev); ++ if (IS_ERR(mac_dev)) { ++ dev_err(&pdev->dev, "dpaa_mac_dev_get() failed\n"); ++ err = PTR_ERR(mac_dev); ++ goto probe_err; ++ } ++ + /* device used for DMA mapping */ +- dev = pdev->dev.parent; ++ dev = fman_port_get_device(mac_dev->port[RX]); + err = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(40)); + if (err) { + dev_err(dev, "dma_coerce_mask_and_coherent() failed\n"); +@@ -3004,13 +3011,6 @@ static int dpaa_eth_probe(struct platfor + + priv->msg_enable = netif_msg_init(debug, DPAA_MSG_DEFAULT); + +- mac_dev = dpaa_mac_dev_get(pdev); +- if (IS_ERR(mac_dev)) { +- dev_err(dev, "dpaa_mac_dev_get() failed\n"); +- err = PTR_ERR(mac_dev); +- goto free_netdev; +- } +- + /* If fsl_fm_max_frm is set to a higher value than the all-common 1500, + * we choose conservatively and let the user explicitly set a higher + * MTU via ifconfig. Otherwise, the user may end up with different MTUs +@@ -3146,9 +3146,9 @@ delete_egress_cgr: + qman_release_cgrid(priv->cgr_data.cgr.cgrid); + free_dpaa_bps: + dpaa_bps_free(priv); +-free_netdev: + dev_set_drvdata(dev, NULL); + free_netdev(net_dev); ++probe_err: + + return err; + } |