From c6e26ea8c893687a83c9feda7ab4f89205e19726 Mon Sep 17 00:00:00 2001 From: Madalin Bucur Date: Mon, 16 Oct 2017 21:36:07 +0300 Subject: [PATCH] dpaa_eth: change device used Change device used for DMA mapping to the MAC device that is an of_device, with proper DMA ops. Using this device for the netdevice should also address the issue with DSA scenarios that need the netdevice to be backed by an of_device. Signed-off-by: Madalin Bucur Signed-off-by: David S. Miller --- .../net/ethernet/freescale/dpaa/dpaa_eth.c | 42 ++++++------------- drivers/net/ethernet/freescale/fman/mac.c | 37 +++++++--------- drivers/net/ethernet/freescale/fman/mac.h | 1 - 3 files changed, 27 insertions(+), 53 deletions(-) diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c index 7cf61d62ad5e..823aa6597e56 100644 --- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c @@ -385,34 +385,19 @@ static int dpaa_setup_tc(struct net_device *net_dev, enum tc_setup_type type, static struct mac_device *dpaa_mac_dev_get(struct platform_device *pdev) { - struct platform_device *of_dev; struct dpaa_eth_data *eth_data; - struct device *dpaa_dev, *dev; - struct device_node *mac_node; + struct device *dpaa_dev; struct mac_device *mac_dev; dpaa_dev = &pdev->dev; eth_data = dpaa_dev->platform_data; - if (!eth_data) + if (!eth_data) { + dev_err(dpaa_dev, "eth_data missing\n"); return ERR_PTR(-ENODEV); - - mac_node = eth_data->mac_node; - - of_dev = of_find_device_by_node(mac_node); - if (!of_dev) { - dev_err(dpaa_dev, "of_find_device_by_node(%pOF) failed\n", - mac_node); - of_node_put(mac_node); - return ERR_PTR(-EINVAL); } - of_node_put(mac_node); - - dev = &of_dev->dev; - - mac_dev = dev_get_drvdata(dev); + mac_dev = eth_data->mac_dev; if (!mac_dev) { - dev_err(dpaa_dev, "dev_get_drvdata(%s) failed\n", - dev_name(dev)); + dev_err(dpaa_dev, "mac_dev missing\n"); return ERR_PTR(-EINVAL); } @@ -2696,7 +2681,13 @@ static int dpaa_eth_probe(struct platform_device *pdev) int err = 0, i, channel; struct device *dev; - dev = &pdev->dev; + /* device used for DMA mapping */ + dev = pdev->dev.parent; + err = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(40)); + if (err) { + dev_err(dev, "dma_coerce_mask_and_coherent() failed\n"); + return err; + } /* Allocate this early, so we can store relevant information in * the private area @@ -2738,14 +2729,6 @@ static int dpaa_eth_probe(struct platform_device *pdev) priv->buf_layout[RX].priv_data_size = DPAA_RX_PRIV_DATA_SIZE; /* Rx */ priv->buf_layout[TX].priv_data_size = DPAA_TX_PRIV_DATA_SIZE; /* Tx */ - /* device used for DMA mapping */ - set_dma_ops(dev, get_dma_ops(&pdev->dev)); - err = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(40)); - if (err) { - dev_err(dev, "dma_coerce_mask_and_coherent() failed\n"); - goto dev_mask_failed; - } - /* bp init */ for (i = 0; i < DPAA_BPS_NUM; i++) { int err; @@ -2879,7 +2862,6 @@ static int dpaa_eth_probe(struct platform_device *pdev) dpaa_bps_free(priv); bp_create_failed: fq_probe_failed: -dev_mask_failed: mac_probe_failed: dev_set_drvdata(dev, NULL); free_netdev(net_dev); diff --git a/drivers/net/ethernet/freescale/fman/mac.c b/drivers/net/ethernet/freescale/fman/mac.c index a0a3107c1f45..1d6da1ea7bfb 100644 --- a/drivers/net/ethernet/freescale/fman/mac.c +++ b/drivers/net/ethernet/freescale/fman/mac.c @@ -542,8 +542,7 @@ static const u16 phy2speed[] = { }; static struct platform_device *dpaa_eth_add_device(int fman_id, - struct mac_device *mac_dev, - struct device_node *node) + struct mac_device *mac_dev) { struct platform_device *pdev; struct dpaa_eth_data data; @@ -556,10 +555,8 @@ static struct platform_device *dpaa_eth_add_device(int fman_id, data.mac_dev = mac_dev; data.mac_hw_id = priv->cell_index; data.fman_hw_id = fman_id; - data.mac_node = node; mutex_lock(ð_lock); - pdev = platform_device_alloc("dpaa-ethernet", dpaa_eth_dev_cnt); if (!pdev) { ret = -ENOMEM; @@ -648,9 +645,6 @@ static int mac_probe(struct platform_device *_of_dev) goto _return; } - /* Register mac_dev */ - dev_set_drvdata(dev, mac_dev); - INIT_LIST_HEAD(&priv->mc_addr_list); /* Get the FM node */ @@ -659,7 +653,7 @@ static int mac_probe(struct platform_device *_of_dev) dev_err(dev, "of_get_parent(%pOF) failed\n", mac_node); err = -EINVAL; - goto _return_dev_set_drvdata; + goto _return_of_get_parent; } of_dev = of_find_device_by_node(dev_node); @@ -693,7 +687,7 @@ static int mac_probe(struct platform_device *_of_dev) if (err < 0) { dev_err(dev, "of_address_to_resource(%pOF) = %d\n", mac_node, err); - goto _return_dev_set_drvdata; + goto _return_of_get_parent; } mac_dev->res = __devm_request_region(dev, @@ -703,7 +697,7 @@ static int mac_probe(struct platform_device *_of_dev) if (!mac_dev->res) { dev_err(dev, "__devm_request_mem_region(mac) failed\n"); err = -EBUSY; - goto _return_dev_set_drvdata; + goto _return_of_get_parent; } priv->vaddr = devm_ioremap(dev, mac_dev->res->start, @@ -711,7 +705,7 @@ static int mac_probe(struct platform_device *_of_dev) if (!priv->vaddr) { dev_err(dev, "devm_ioremap() failed\n"); err = -EIO; - goto _return_dev_set_drvdata; + goto _return_of_get_parent; } if (!of_device_is_available(mac_node)) { @@ -728,7 +722,7 @@ static int mac_probe(struct platform_device *_of_dev) if (err) { dev_err(dev, "failed to read cell-index for %pOF\n", mac_node); err = -EINVAL; - goto _return_dev_set_drvdata; + goto _return_of_get_parent; } priv->cell_index = (u8)val; @@ -737,7 +731,7 @@ static int mac_probe(struct platform_device *_of_dev) if (!mac_addr) { dev_err(dev, "of_get_mac_address(%pOF) failed\n", mac_node); err = -EINVAL; - goto _return_dev_set_drvdata; + goto _return_of_get_parent; } memcpy(mac_dev->addr, mac_addr, sizeof(mac_dev->addr)); @@ -747,14 +741,14 @@ static int mac_probe(struct platform_device *_of_dev) dev_err(dev, "of_count_phandle_with_args(%pOF, fsl,fman-ports) failed\n", mac_node); err = nph; - goto _return_dev_set_drvdata; + goto _return_of_get_parent; } if (nph != ARRAY_SIZE(mac_dev->port)) { dev_err(dev, "Not supported number of fman-ports handles of mac node %pOF from device tree\n", mac_node); err = -EINVAL; - goto _return_dev_set_drvdata; + goto _return_of_get_parent; } for (i = 0; i < ARRAY_SIZE(mac_dev->port); i++) { @@ -818,20 +812,20 @@ static int mac_probe(struct platform_device *_of_dev) err = of_phy_register_fixed_link(mac_node); if (err) - goto _return_dev_set_drvdata; + goto _return_of_get_parent; priv->fixed_link = kzalloc(sizeof(*priv->fixed_link), GFP_KERNEL); if (!priv->fixed_link) { err = -ENOMEM; - goto _return_dev_set_drvdata; + goto _return_of_get_parent; } mac_dev->phy_node = of_node_get(mac_node); phy = of_phy_find_device(mac_dev->phy_node); if (!phy) { err = -EINVAL; - goto _return_dev_set_drvdata; + goto _return_of_get_parent; } priv->fixed_link->link = phy->link; @@ -847,7 +841,7 @@ static int mac_probe(struct platform_device *_of_dev) if (err < 0) { dev_err(dev, "mac_dev->init() = %d\n", err); of_node_put(mac_dev->phy_node); - goto _return_dev_set_drvdata; + goto _return_of_get_parent; } /* pause frame autonegotiation enabled */ @@ -868,7 +862,7 @@ static int mac_probe(struct platform_device *_of_dev) mac_dev->addr[0], mac_dev->addr[1], mac_dev->addr[2], mac_dev->addr[3], mac_dev->addr[4], mac_dev->addr[5]); - priv->eth_dev = dpaa_eth_add_device(fman_id, mac_dev, mac_node); + priv->eth_dev = dpaa_eth_add_device(fman_id, mac_dev); if (IS_ERR(priv->eth_dev)) { dev_err(dev, "failed to add Ethernet platform device for MAC %d\n", priv->cell_index); @@ -879,9 +873,8 @@ static int mac_probe(struct platform_device *_of_dev) _return_of_node_put: of_node_put(dev_node); -_return_dev_set_drvdata: +_return_of_get_parent: kfree(priv->fixed_link); - dev_set_drvdata(dev, NULL); _return: return err; } diff --git a/drivers/net/ethernet/freescale/fman/mac.h b/drivers/net/ethernet/freescale/fman/mac.h index 1ca85a18ab38..eefb3357e304 100644 --- a/drivers/net/ethernet/freescale/fman/mac.h +++ b/drivers/net/ethernet/freescale/fman/mac.h @@ -83,7 +83,6 @@ struct mac_device { }; struct dpaa_eth_data { - struct device_node *mac_node; struct mac_device *mac_dev; int mac_hw_id; int fman_hw_id; -- GitLab