forked from ~ljy/RK356X_SDK_RELEASE
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hc
2024-05-10 093a6c67005148ae32a5c9e4553491b9f5c2457b 
 kernel/drivers/net/ethernet/smsc/epic100.c
....@@ -280,6 +280,7 @@
280280 	signed char phys[4];				/* MII device addresses. */
281281 	u16 advertising;					/* NWay media advertisement */
282282 	int mii_phy_cnt;
283
+	u32 ethtool_ops_nesting;
283284 	struct mii_if_info mii;
284285 	unsigned int tx_full:1;				/* The Tx queue is full. */
285286 	unsigned int default_port:4;		/* Last dev->if_port value. */
....@@ -291,7 +292,7 @@
291292 static void mdio_write(struct net_device *dev, int phy_id, int loc, int val);
292293 static void epic_restart(struct net_device *dev);
293294 static void epic_timer(struct timer_list *t);
294
-static void epic_tx_timeout(struct net_device *dev);
295
+static void epic_tx_timeout(struct net_device *dev, unsigned int txqueue);
295296 static void epic_init_ring(struct net_device *dev);
296297 static netdev_tx_t epic_start_xmit(struct sk_buff *skb,
297298 				   struct net_device *dev);
....@@ -373,13 +374,15 @@
373374 	ep->mii.phy_id_mask = 0x1f;
374375 	ep->mii.reg_num_mask = 0x1f;
375376 
376
-	ring_space = pci_alloc_consistent(pdev, TX_TOTAL_SIZE, &ring_dma);
377
+	ring_space = dma_alloc_coherent(&pdev->dev, TX_TOTAL_SIZE, &ring_dma,
378
+					GFP_KERNEL);
377379 	if (!ring_space)
378380 		goto err_out_iounmap;
379381 	ep->tx_ring = ring_space;
380382 	ep->tx_ring_dma = ring_dma;
381383 
382
-	ring_space = pci_alloc_consistent(pdev, RX_TOTAL_SIZE, &ring_dma);
384
+	ring_space = dma_alloc_coherent(&pdev->dev, RX_TOTAL_SIZE, &ring_dma,
385
+					GFP_KERNEL);
383386 	if (!ring_space)
384387 		goto err_out_unmap_tx;
385388 	ep->rx_ring = ring_space;
....@@ -492,9 +495,11 @@
492495 	return ret;
493496 
494497 err_out_unmap_rx:
495
-	pci_free_consistent(pdev, RX_TOTAL_SIZE, ep->rx_ring, ep->rx_ring_dma);
498
+	dma_free_coherent(&pdev->dev, RX_TOTAL_SIZE, ep->rx_ring,
499
+			  ep->rx_ring_dma);
496500 err_out_unmap_tx:
497
-	pci_free_consistent(pdev, TX_TOTAL_SIZE, ep->tx_ring, ep->tx_ring_dma);
501
+	dma_free_coherent(&pdev->dev, TX_TOTAL_SIZE, ep->tx_ring,
502
+			  ep->tx_ring_dma);
498503 err_out_iounmap:
499504 	pci_iounmap(pdev, ioaddr);
500505 err_out_free_netdev:
....@@ -861,7 +866,7 @@
861866 	add_timer(&ep->timer);
862867 }
863868 
864
-static void epic_tx_timeout(struct net_device *dev)
869
+static void epic_tx_timeout(struct net_device *dev, unsigned int txqueue)
865870 {
866871 	struct epic_private *ep = netdev_priv(dev);
867872 	void __iomem *ioaddr = ep->ioaddr;
....@@ -917,8 +922,10 @@
917922 		if (skb == NULL)
918923 			break;
919924 		skb_reserve(skb, 2);	/* 16 byte align the IP header. */
920
-		ep->rx_ring[i].bufaddr = pci_map_single(ep->pci_dev,
921
-			skb->data, ep->rx_buf_sz, PCI_DMA_FROMDEVICE);
925
+		ep->rx_ring[i].bufaddr = dma_map_single(&ep->pci_dev->dev,
926
+							skb->data,
927
+							ep->rx_buf_sz,
928
+							DMA_FROM_DEVICE);
922929 		ep->rx_ring[i].rxstatus = DescOwn;
923930 	}
924931 	ep->dirty_rx = (unsigned int)(i - RX_RING_SIZE);
....@@ -954,8 +961,9 @@
954961 	entry = ep->cur_tx % TX_RING_SIZE;
955962 
956963 	ep->tx_skbuff[entry] = skb;
957
-	ep->tx_ring[entry].bufaddr = pci_map_single(ep->pci_dev, skb->data,
958
-		 			            skb->len, PCI_DMA_TODEVICE);
964
+	ep->tx_ring[entry].bufaddr = dma_map_single(&ep->pci_dev->dev,
965
+						    skb->data, skb->len,
966
+						    DMA_TO_DEVICE);
959967 	if (free_count < TX_QUEUE_LEN/2) {/* Typical path */
960968 		ctrl_word = 0x100000; /* No interrupt */
961969 	} else if (free_count == TX_QUEUE_LEN/2) {
....@@ -1035,9 +1043,10 @@
10351043 
10361044 		/* Free the original skb. */
10371045 		skb = ep->tx_skbuff[entry];
1038
-		pci_unmap_single(ep->pci_dev, ep->tx_ring[entry].bufaddr,
1039
-				 skb->len, PCI_DMA_TODEVICE);
1040
-		dev_kfree_skb_irq(skb);
1046
+		dma_unmap_single(&ep->pci_dev->dev,
1047
+				 ep->tx_ring[entry].bufaddr, skb->len,
1048
+				 DMA_TO_DEVICE);
1049
+		dev_consume_skb_irq(skb);
10411050 		ep->tx_skbuff[entry] = NULL;
10421051 	}
10431052 
....@@ -1177,20 +1186,21 @@
11771186 			if (pkt_len < rx_copybreak &&
11781187 			    (skb = netdev_alloc_skb(dev, pkt_len + 2)) != NULL) {
11791188 				skb_reserve(skb, 2);	/* 16 byte align the IP header */
1180
-				pci_dma_sync_single_for_cpu(ep->pci_dev,
1181
-							    ep->rx_ring[entry].bufaddr,
1182
-							    ep->rx_buf_sz,
1183
-							    PCI_DMA_FROMDEVICE);
1189
+				dma_sync_single_for_cpu(&ep->pci_dev->dev,
1190
+							ep->rx_ring[entry].bufaddr,
1191
+							ep->rx_buf_sz,
1192
+							DMA_FROM_DEVICE);
11841193 				skb_copy_to_linear_data(skb, ep->rx_skbuff[entry]->data, pkt_len);
11851194 				skb_put(skb, pkt_len);
1186
-				pci_dma_sync_single_for_device(ep->pci_dev,
1187
-							       ep->rx_ring[entry].bufaddr,
1188
-							       ep->rx_buf_sz,
1189
-							       PCI_DMA_FROMDEVICE);
1195
+				dma_sync_single_for_device(&ep->pci_dev->dev,
1196
+							   ep->rx_ring[entry].bufaddr,
1197
+							   ep->rx_buf_sz,
1198
+							   DMA_FROM_DEVICE);
11901199 			} else {
1191
-				pci_unmap_single(ep->pci_dev,
1192
-					ep->rx_ring[entry].bufaddr,
1193
-					ep->rx_buf_sz, PCI_DMA_FROMDEVICE);
1200
+				dma_unmap_single(&ep->pci_dev->dev,
1201
+						 ep->rx_ring[entry].bufaddr,
1202
+						 ep->rx_buf_sz,
1203
+						 DMA_FROM_DEVICE);
11941204 				skb_put(skb = ep->rx_skbuff[entry], pkt_len);
11951205 				ep->rx_skbuff[entry] = NULL;
11961206 			}
....@@ -1212,8 +1222,10 @@
12121222 			if (skb == NULL)
12131223 				break;
12141224 			skb_reserve(skb, 2);	/* Align IP on 16 byte boundaries */
1215
-			ep->rx_ring[entry].bufaddr = pci_map_single(ep->pci_dev,
1216
-				skb->data, ep->rx_buf_sz, PCI_DMA_FROMDEVICE);
1225
+			ep->rx_ring[entry].bufaddr = dma_map_single(&ep->pci_dev->dev,
1226
+								    skb->data,
1227
+								    ep->rx_buf_sz,
1228
+								    DMA_FROM_DEVICE);
12171229 			work_done++;
12181230 		}
12191231 		/* AV: shouldn't we add a barrier here? */
....@@ -1293,8 +1305,8 @@
12931305 		ep->rx_ring[i].rxstatus = 0;		/* Not owned by Epic chip. */
12941306 		ep->rx_ring[i].buflength = 0;
12951307 		if (skb) {
1296
-			pci_unmap_single(pdev, ep->rx_ring[i].bufaddr,
1297
-					 ep->rx_buf_sz, PCI_DMA_FROMDEVICE);
1308
+			dma_unmap_single(&pdev->dev, ep->rx_ring[i].bufaddr,
1309
+					 ep->rx_buf_sz, DMA_FROM_DEVICE);
12981310 			dev_kfree_skb(skb);
12991311 		}
13001312 		ep->rx_ring[i].bufaddr = 0xBADF00D0; /* An invalid address. */
....@@ -1304,8 +1316,8 @@
13041316 		ep->tx_skbuff[i] = NULL;
13051317 		if (!skb)
13061318 			continue;
1307
-		pci_unmap_single(pdev, ep->tx_ring[i].bufaddr, skb->len,
1308
-				 PCI_DMA_TODEVICE);
1319
+		dma_unmap_single(&pdev->dev, ep->tx_ring[i].bufaddr, skb->len,
1320
+				 DMA_TO_DEVICE);
13091321 		dev_kfree_skb(skb);
13101322 	}
13111323 
....@@ -1435,8 +1447,10 @@
14351447 	struct epic_private *ep = netdev_priv(dev);
14361448 	void __iomem *ioaddr = ep->ioaddr;
14371449 
1450
+	if (ep->ethtool_ops_nesting == U32_MAX)
1451
+		return -EBUSY;
14381452 	/* power-up, if interface is down */
1439
-	if (!netif_running(dev)) {
1453
+	if (!ep->ethtool_ops_nesting++ && !netif_running(dev)) {
14401454 		ew32(GENCTL, 0x0200);
14411455 		ew32(NVCTL, (er32(NVCTL) & ~0x003c) | 0x4800);
14421456 	}
....@@ -1449,7 +1463,7 @@
14491463 	void __iomem *ioaddr = ep->ioaddr;
14501464 
14511465 	/* power-down, if interface is down */
1452
-	if (!netif_running(dev)) {
1466
+	if (!--ep->ethtool_ops_nesting && !netif_running(dev)) {
14531467 		ew32(GENCTL, 0x0008);
14541468 		ew32(NVCTL, (er32(NVCTL) & ~0x483c) | 0x0000);
14551469 	}
....@@ -1499,22 +1513,21 @@
14991513 	struct net_device *dev = pci_get_drvdata(pdev);
15001514 	struct epic_private *ep = netdev_priv(dev);
15011515 
1502
-	pci_free_consistent(pdev, TX_TOTAL_SIZE, ep->tx_ring, ep->tx_ring_dma);
1503
-	pci_free_consistent(pdev, RX_TOTAL_SIZE, ep->rx_ring, ep->rx_ring_dma);
15041516 	unregister_netdev(dev);
1517
+	dma_free_coherent(&pdev->dev, TX_TOTAL_SIZE, ep->tx_ring,
1518
+			  ep->tx_ring_dma);
1519
+	dma_free_coherent(&pdev->dev, RX_TOTAL_SIZE, ep->rx_ring,
1520
+			  ep->rx_ring_dma);
15051521 	pci_iounmap(pdev, ep->ioaddr);
1506
-	pci_release_regions(pdev);
15071522 	free_netdev(dev);
1523
+	pci_release_regions(pdev);
15081524 	pci_disable_device(pdev);
15091525 	/* pci_power_off(pdev, -1); */
15101526 }
15111527 
1512
-
1513
-#ifdef CONFIG_PM
1514
-
1515
-static int epic_suspend (struct pci_dev *pdev, pm_message_t state)
1528
+static int __maybe_unused epic_suspend(struct device *dev_d)
15161529 {
1517
-	struct net_device *dev = pci_get_drvdata(pdev);
1530
+	struct net_device *dev = dev_get_drvdata(dev_d);
15181531 	struct epic_private *ep = netdev_priv(dev);
15191532 	void __iomem *ioaddr = ep->ioaddr;
15201533 
....@@ -1528,9 +1541,9 @@
15281541 }
15291542 
15301543 
1531
-static int epic_resume (struct pci_dev *pdev)
1544
+static int __maybe_unused epic_resume(struct device *dev_d)
15321545 {
1533
-	struct net_device *dev = pci_get_drvdata(pdev);
1546
+	struct net_device *dev = dev_get_drvdata(dev_d);
15341547 
15351548 	if (!netif_running(dev))
15361549 		return 0;
....@@ -1539,18 +1552,14 @@
15391552 	return 0;
15401553 }
15411554 
1542
-#endif /* CONFIG_PM */
1543
-
1555
+static SIMPLE_DEV_PM_OPS(epic_pm_ops, epic_suspend, epic_resume);
15441556 
15451557 static struct pci_driver epic_driver = {
15461558 	.name		= DRV_NAME,
15471559 	.id_table	= epic_pci_tbl,
15481560 	.probe		= epic_init_one,
15491561 	.remove		= epic_remove_one,
1550
-#ifdef CONFIG_PM
1551
-	.suspend	= epic_suspend,
1552
-	.resume		= epic_resume,
1553
-#endif /* CONFIG_PM */
1562
+	.driver.pm	= &epic_pm_ops,
15541563 };
15551564 
15561565