add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/net/ethernet/lantiq_etop.c
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@@ -1,15 +1,5 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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- *   This program is free software; you can redistribute it and/or modify it
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- *   under the terms of the GNU General Public License version 2 as published
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- *   by the Free Software Foundation.
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- *
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- *   This program is distributed in the hope that it will be useful,
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- *   but WITHOUT ANY WARRANTY; without even the implied warranty of
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- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- *   GNU General Public License for more details.
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- *
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- *   You should have received a copy of the GNU General Public License
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- *   along with this program; if not, see <http://www.gnu.org/licenses/>.
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  *
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  *   Copyright (C) 2011 John Crispin <blogic@openwrt.org>
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  */
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@@ -112,10 +102,12 @@
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 static int
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 ltq_etop_alloc_skb(struct ltq_etop_chan *ch)
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 {
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+	struct ltq_etop_priv *priv = netdev_priv(ch->netdev);
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+
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 	ch->skb[ch->dma.desc] = netdev_alloc_skb(ch->netdev, MAX_DMA_DATA_LEN);
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 	if (!ch->skb[ch->dma.desc])
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 		return -ENOMEM;
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-	ch->dma.desc_base[ch->dma.desc].addr = dma_map_single(NULL,
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+	ch->dma.desc_base[ch->dma.desc].addr = dma_map_single(&priv->pdev->dev,
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 		ch->skb[ch->dma.desc]->data, MAX_DMA_DATA_LEN,
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 		DMA_FROM_DEVICE);
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 	ch->dma.desc_base[ch->dma.desc].addr =
..
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@@ -365,15 +357,8 @@
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 		return PTR_ERR(phydev);
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 	}
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-	phydev->supported &= (SUPPORTED_10baseT_Half
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-			      | SUPPORTED_10baseT_Full
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-			      | SUPPORTED_100baseT_Half
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-			      | SUPPORTED_100baseT_Full
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-			      | SUPPORTED_Autoneg
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-			      | SUPPORTED_MII
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-			      | SUPPORTED_TP);
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+	phy_set_max_speed(phydev, SPEED_100);
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-	phydev->advertising = phydev->supported;
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 	phy_attached_info(phydev);
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 	return 0;
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@@ -439,6 +424,7 @@
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 		if (!IS_TX(i) && (!IS_RX(i)))
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 			continue;
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 		ltq_dma_open(&ch->dma);
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+		ltq_dma_enable_irq(&ch->dma);
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 		napi_enable(&ch->napi);
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 	}
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 	phy_start(dev->phydev);
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@@ -480,7 +466,6 @@
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 	len = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len;
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 	if ((desc->ctl & (LTQ_DMA_OWN | LTQ_DMA_C)) || ch->skb[ch->dma.desc]) {
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-		dev_kfree_skb_any(skb);
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 		netdev_err(dev, "tx ring full\n");
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 		netif_tx_stop_queue(txq);
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 		return NETDEV_TX_BUSY;
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@@ -493,7 +478,7 @@
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 	netif_trans_update(dev);
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 	spin_lock_irqsave(&priv->lock, flags);
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-	desc->addr = ((unsigned int) dma_map_single(NULL, skb->data, len,
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+	desc->addr = ((unsigned int) dma_map_single(&priv->pdev->dev, skb->data, len,
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 						DMA_TO_DEVICE)) - byte_offset;
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 	wmb();
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 	desc->ctl = LTQ_DMA_OWN | LTQ_DMA_SOP | LTQ_DMA_EOP |
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@@ -521,13 +506,6 @@
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 	spin_unlock_irqrestore(&priv->lock, flags);
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 	return 0;
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-}
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-
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-static int
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-ltq_etop_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
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-{
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-	/* TODO: mii-toll reports "No MII transceiver present!." ?!*/
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-	return phy_mii_ioctl(dev->phydev, rq, cmd);
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 }
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 static int
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@@ -608,7 +586,7 @@
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 }
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 static void
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-ltq_etop_tx_timeout(struct net_device *dev)
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+ltq_etop_tx_timeout(struct net_device *dev, unsigned int txqueue)
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 {
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 	int err;
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@@ -630,7 +608,7 @@
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 	.ndo_stop = ltq_etop_stop,
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 	.ndo_start_xmit = ltq_etop_tx,
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 	.ndo_change_mtu = ltq_etop_change_mtu,
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-	.ndo_do_ioctl = ltq_etop_ioctl,
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+	.ndo_do_ioctl = phy_do_ioctl,
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 	.ndo_set_mac_address = ltq_etop_set_mac_address,
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 	.ndo_validate_addr = eth_validate_addr,
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 	.ndo_set_rx_mode = ltq_etop_set_multicast_list,
..
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@@ -663,7 +641,7 @@
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 		goto err_out;
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 	}
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-	ltq_etop_membase = devm_ioremap_nocache(&pdev->dev,
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+	ltq_etop_membase = devm_ioremap(&pdev->dev,
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 		res->start, resource_size(res));
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 	if (!ltq_etop_membase) {
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 		dev_err(&pdev->dev, "failed to remap etop engine %d\n",