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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/drivers/net/ethernet/dlink/dl2k.c
..
..
@@ -1,18 +1,12 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
1
2
 /*  D-Link DL2000-based Gigabit Ethernet Adapter Linux driver */
2
3
 /*
3
4
     Copyright (c) 2001, 2002 by D-Link Corporation
4
5
     Written by Edward Peng.<edward_peng@dlink.com.tw>
5
6
     Created 03-May-2001, base on Linux' sundance.c.
6
7
 
7
-    This program is free software; you can redistribute it and/or modify
8
-    it under the terms of the GNU General Public License as published by
9
-    the Free Software Foundation; either version 2 of the License, or
10
-    (at your option) any later version.
11
8
 */
12
9
 
13
-#define DRV_NAME	"DL2000/TC902x-based linux driver"
14
-#define DRV_VERSION	"v1.19"
15
-#define DRV_RELDATE	"2007/08/12"
16
10
 #include "dl2k.h"
17
11
 #include <linux/dma-mapping.h>
18
12
 
..
..
@@ -23,8 +17,6 @@
23
17
 #define dr16(reg)	ioread16(ioaddr + (reg))
24
18
 #define dr8(reg)	ioread8(ioaddr + (reg))
25
19
 
26
-static char version[] =
27
-      KERN_INFO DRV_NAME " " DRV_VERSION " " DRV_RELDATE "\n";
28
20
 #define MAX_UNITS 8
29
21
 static int mtu[MAX_UNITS];
30
22
 static int vlan[MAX_UNITS];
..
..
@@ -69,7 +61,7 @@
69
61
 
70
62
 static int rio_open (struct net_device *dev);
71
63
 static void rio_timer (struct timer_list *t);
72
-static void rio_tx_timeout (struct net_device *dev);
64
+static void rio_tx_timeout (struct net_device *dev, unsigned int txqueue);
73
65
 static netdev_tx_t start_xmit (struct sk_buff *skb, struct net_device *dev);
74
66
 static irqreturn_t rio_interrupt (int irq, void *dev_instance);
75
67
 static void rio_free_tx (struct net_device *dev, int irq);
..
..
@@ -116,12 +108,8 @@
116
108
 	int chip_idx = ent->driver_data;
117
109
 	int err, irq;
118
110
 	void __iomem *ioaddr;
119
-	static int version_printed;
120
111
 	void *ring_space;
121
112
 	dma_addr_t ring_dma;
122
-
123
-	if (!version_printed++)
124
-		printk ("%s", version);
125
113
 
126
114
 	err = pci_enable_device (pdev);
127
115
 	if (err)
..
..
@@ -234,13 +222,15 @@
234
222
 
235
223
 	pci_set_drvdata (pdev, dev);
236
224
 
237
-	ring_space = pci_alloc_consistent (pdev, TX_TOTAL_SIZE, &ring_dma);
225
+	ring_space = dma_alloc_coherent(&pdev->dev, TX_TOTAL_SIZE, &ring_dma,
226
+					GFP_KERNEL);
238
227
 	if (!ring_space)
239
228
 		goto err_out_iounmap;
240
229
 	np->tx_ring = ring_space;
241
230
 	np->tx_ring_dma = ring_dma;
242
231
 
243
-	ring_space = pci_alloc_consistent (pdev, RX_TOTAL_SIZE, &ring_dma);
232
+	ring_space = dma_alloc_coherent(&pdev->dev, RX_TOTAL_SIZE, &ring_dma,
233
+					GFP_KERNEL);
244
234
 	if (!ring_space)
245
235
 		goto err_out_unmap_tx;
246
236
 	np->rx_ring = ring_space;
..
..
@@ -291,9 +281,11 @@
291
281
 	return 0;
292
282
 
293
283
 err_out_unmap_rx:
294
-	pci_free_consistent (pdev, RX_TOTAL_SIZE, np->rx_ring, np->rx_ring_dma);
284
+	dma_free_coherent(&pdev->dev, RX_TOTAL_SIZE, np->rx_ring,
285
+			  np->rx_ring_dma);
295
286
 err_out_unmap_tx:
296
-	pci_free_consistent (pdev, TX_TOTAL_SIZE, np->tx_ring, np->tx_ring_dma);
287
+	dma_free_coherent(&pdev->dev, TX_TOTAL_SIZE, np->tx_ring,
288
+			  np->tx_ring_dma);
297
289
 err_out_iounmap:
298
290
 #ifdef MEM_MAPPING
299
291
 	pci_iounmap(pdev, np->ioaddr);
..
..
@@ -447,8 +439,9 @@
447
439
 	for (i = 0; i < RX_RING_SIZE; i++) {
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440
 		skb = np->rx_skbuff[i];
449
441
 		if (skb) {
450
-			pci_unmap_single(np->pdev, desc_to_dma(&np->rx_ring[i]),
451
-					 skb->len, PCI_DMA_FROMDEVICE);
442
+			dma_unmap_single(&np->pdev->dev,
443
+					 desc_to_dma(&np->rx_ring[i]),
444
+					 skb->len, DMA_FROM_DEVICE);
452
445
 			dev_kfree_skb(skb);
453
446
 			np->rx_skbuff[i] = NULL;
454
447
 		}
..
..
@@ -458,8 +451,9 @@
458
451
 	for (i = 0; i < TX_RING_SIZE; i++) {
459
452
 		skb = np->tx_skbuff[i];
460
453
 		if (skb) {
461
-			pci_unmap_single(np->pdev, desc_to_dma(&np->tx_ring[i]),
462
-					 skb->len, PCI_DMA_TODEVICE);
454
+			dma_unmap_single(&np->pdev->dev,
455
+					 desc_to_dma(&np->tx_ring[i]),
456
+					 skb->len, DMA_TO_DEVICE);
463
457
 			dev_kfree_skb(skb);
464
458
 			np->tx_skbuff[i] = NULL;
465
459
 		}
..
..
@@ -516,9 +510,8 @@
516
510
 						sizeof(struct netdev_desc));
517
511
 		/* Rubicon now supports 40 bits of addressing space. */
518
512
 		np->rx_ring[i].fraginfo =
519
-		    cpu_to_le64(pci_map_single(
520
-				  np->pdev, skb->data, np->rx_buf_sz,
521
-				  PCI_DMA_FROMDEVICE));
513
+		    cpu_to_le64(dma_map_single(&np->pdev->dev, skb->data,
514
+					       np->rx_buf_sz, DMA_FROM_DEVICE));
522
515
 		np->rx_ring[i].fraginfo |= cpu_to_le64((u64)np->rx_buf_sz << 48);
523
516
 	}
524
517
 
..
..
@@ -684,9 +677,8 @@
684
677
 				}
685
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 				np->rx_skbuff[entry] = skb;
686
679
 				np->rx_ring[entry].fraginfo =
687
-				    cpu_to_le64 (pci_map_single
688
-					 (np->pdev, skb->data, np->rx_buf_sz,
689
-					  PCI_DMA_FROMDEVICE));
680
+				    cpu_to_le64 (dma_map_single(&np->pdev->dev, skb->data,
681
+								np->rx_buf_sz, DMA_FROM_DEVICE));
690
682
 			}
691
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 			np->rx_ring[entry].fraginfo |=
692
684
 			    cpu_to_le64((u64)np->rx_buf_sz << 48);
..
..
@@ -699,7 +691,7 @@
699
691
 }
700
692
 
701
693
 static void
702
-rio_tx_timeout (struct net_device *dev)
694
+rio_tx_timeout (struct net_device *dev, unsigned int txqueue)
703
695
 {
704
696
 	struct netdev_private *np = netdev_priv(dev);
705
697
 	void __iomem *ioaddr = np->ioaddr;
..
..
@@ -740,9 +732,8 @@
740
732
 		    ((u64)np->vlan << 32) |
741
733
 		    ((u64)skb->priority << 45);
742
734
 	}
743
-	txdesc->fraginfo = cpu_to_le64 (pci_map_single (np->pdev, skb->data,
744
-							skb->len,
745
-							PCI_DMA_TODEVICE));
735
+	txdesc->fraginfo = cpu_to_le64 (dma_map_single(&np->pdev->dev, skb->data,
736
+						       skb->len, DMA_TO_DEVICE));
746
737
 	txdesc->fraginfo |= cpu_to_le64((u64)skb->len << 48);
747
738
 
748
739
 	/* DL2K bug: DMA fails to get next descriptor ptr in 10Mbps mode
..
..
@@ -839,13 +830,13 @@
839
830
 		if (!(np->tx_ring[entry].status & cpu_to_le64(TFDDone)))
840
831
 			break;
841
832
 		skb = np->tx_skbuff[entry];
842
-		pci_unmap_single (np->pdev,
843
-				  desc_to_dma(&np->tx_ring[entry]),
844
-				  skb->len, PCI_DMA_TODEVICE);
833
+		dma_unmap_single(&np->pdev->dev,
834
+				 desc_to_dma(&np->tx_ring[entry]), skb->len,
835
+				 DMA_TO_DEVICE);
845
836
 		if (irq)
846
-			dev_kfree_skb_irq (skb);
837
+			dev_consume_skb_irq(skb);
847
838
 		else
848
-			dev_kfree_skb (skb);
839
+			dev_kfree_skb(skb);
849
840
 
850
841
 		np->tx_skbuff[entry] = NULL;
851
842
 		entry = (entry + 1) % TX_RING_SIZE;
..
..
@@ -961,25 +952,25 @@
961
952
 
962
953
 			/* Small skbuffs for short packets */
963
954
 			if (pkt_len > copy_thresh) {
964
-				pci_unmap_single (np->pdev,
965
-						  desc_to_dma(desc),
966
-						  np->rx_buf_sz,
967
-						  PCI_DMA_FROMDEVICE);
955
+				dma_unmap_single(&np->pdev->dev,
956
+						 desc_to_dma(desc),
957
+						 np->rx_buf_sz,
958
+						 DMA_FROM_DEVICE);
968
959
 				skb_put (skb = np->rx_skbuff[entry], pkt_len);
969
960
 				np->rx_skbuff[entry] = NULL;
970
961
 			} else if ((skb = netdev_alloc_skb_ip_align(dev, pkt_len))) {
971
-				pci_dma_sync_single_for_cpu(np->pdev,
972
-							    desc_to_dma(desc),
973
-							    np->rx_buf_sz,
974
-							    PCI_DMA_FROMDEVICE);
962
+				dma_sync_single_for_cpu(&np->pdev->dev,
963
+							desc_to_dma(desc),
964
+							np->rx_buf_sz,
965
+							DMA_FROM_DEVICE);
975
966
 				skb_copy_to_linear_data (skb,
976
967
 						  np->rx_skbuff[entry]->data,
977
968
 						  pkt_len);
978
969
 				skb_put (skb, pkt_len);
979
-				pci_dma_sync_single_for_device(np->pdev,
980
-							       desc_to_dma(desc),
981
-							       np->rx_buf_sz,
982
-							       PCI_DMA_FROMDEVICE);
970
+				dma_sync_single_for_device(&np->pdev->dev,
971
+							   desc_to_dma(desc),
972
+							   np->rx_buf_sz,
973
+							   DMA_FROM_DEVICE);
983
974
 			}
984
975
 			skb->protocol = eth_type_trans (skb, dev);
985
976
 #if 0
..
..
@@ -1012,9 +1003,8 @@
1012
1003
 			}
1013
1004
 			np->rx_skbuff[entry] = skb;
1014
1005
 			np->rx_ring[entry].fraginfo =
1015
-			    cpu_to_le64 (pci_map_single
1016
-					 (np->pdev, skb->data, np->rx_buf_sz,
1017
-					  PCI_DMA_FROMDEVICE));
1006
+			    cpu_to_le64(dma_map_single(&np->pdev->dev, skb->data,
1007
+						       np->rx_buf_sz, DMA_FROM_DEVICE));
1018
1008
 		}
1019
1009
 		np->rx_ring[entry].fraginfo |=
1020
1010
 		    cpu_to_le64((u64)np->rx_buf_sz << 48);
..
..
@@ -1247,7 +1237,6 @@
1247
1237
 	struct netdev_private *np = netdev_priv(dev);
1248
1238
 
1249
1239
 	strlcpy(info->driver, "dl2k", sizeof(info->driver));
1250
-	strlcpy(info->version, DRV_VERSION, sizeof(info->version));
1251
1240
 	strlcpy(info->bus_info, pci_name(np->pdev), sizeof(info->bus_info));
1252
1241
 }
1253
1242
 
..
..
@@ -1809,10 +1798,10 @@
1809
1798
 		struct netdev_private *np = netdev_priv(dev);
1810
1799
 
1811
1800
 		unregister_netdev (dev);
1812
-		pci_free_consistent (pdev, RX_TOTAL_SIZE, np->rx_ring,
1813
-				     np->rx_ring_dma);
1814
-		pci_free_consistent (pdev, TX_TOTAL_SIZE, np->tx_ring,
1815
-				     np->tx_ring_dma);
1801
+		dma_free_coherent(&pdev->dev, RX_TOTAL_SIZE, np->rx_ring,
1802
+				  np->rx_ring_dma);
1803
+		dma_free_coherent(&pdev->dev, TX_TOTAL_SIZE, np->tx_ring,
1804
+				  np->tx_ring_dma);
1816
1805
 #ifdef MEM_MAPPING
1817
1806
 		pci_iounmap(pdev, np->ioaddr);
1818
1807
 #endif
..
..
@@ -1875,13 +1864,5 @@
1875
1864
 };
1876
1865
 
1877
1866
 module_pci_driver(rio_driver);
1878
-/*
1879
1867
 
1880
-Compile command:
1881
-
1882
-gcc -D__KERNEL__ -DMODULE -I/usr/src/linux/include -Wall -Wstrict-prototypes -O2 -c dl2k.c
1883
-
1884
-Read Documentation/networking/dl2k.txt for details.
1885
-
1886
-*/
1887
-
1868
+/* Read Documentation/networking/device_drivers/ethernet/dlink/dl2k.rst. */