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2024-05-11 297b60346df8beafee954a0fd7c2d64f33f3b9bc 
 kernel/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
....@@ -1,29 +1,14 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  * Copyright(c) 2008 - 2009 Atheros Corporation. All rights reserved.
34  *
45  * Derived from Intel e1000 driver
56  * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
6
- *
7
- * This program is free software; you can redistribute it and/or modify it
8
- * under the terms of the GNU General Public License as published by the Free
9
- * Software Foundation; either version 2 of the License, or (at your option)
10
- * any later version.
11
- *
12
- * This program is distributed in the hope that it will be useful, but WITHOUT
13
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
15
- * more details.
16
- *
17
- * You should have received a copy of the GNU General Public License along with
18
- * this program; if not, write to the Free Software Foundation, Inc., 59
19
- * Temple Place - Suite 330, Boston, MA  02111-1307, USA.
207  */
218 
229 #include "atl1c.h"
2310 
24
-#define ATL1C_DRV_VERSION "1.0.1.1-NAPI"
2511 char atl1c_driver_name[] = "atl1c";
26
-char atl1c_driver_version[] = ATL1C_DRV_VERSION;
2712 
2813 /*
2914  * atl1c_pci_tbl - PCI Device ID Table
....@@ -50,7 +35,6 @@
5035 MODULE_AUTHOR("Qualcomm Atheros Inc., <nic-devel@qualcomm.com>");
5136 MODULE_DESCRIPTION("Qualcomm Atheros 100/1000M Ethernet Network Driver");
5237 MODULE_LICENSE("GPL");
53
-MODULE_VERSION(ATL1C_DRV_VERSION);
5438 
5539 static int atl1c_stop_mac(struct atl1c_hw *hw);
5640 static void atl1c_disable_l0s_l1(struct atl1c_hw *hw);
....@@ -220,7 +204,7 @@
220204 
221205 /**
222206  * atl1c_phy_config - Timer Call-back
223
- * @data: pointer to netdev cast into an unsigned long
207
+ * @t: timer list containing pointer to netdev cast into an unsigned long
224208  */
225209 static void atl1c_phy_config(struct timer_list *t)
226210 {
....@@ -236,7 +220,6 @@
236220 
237221 void atl1c_reinit_locked(struct atl1c_adapter *adapter)
238222 {
239
-	WARN_ON(in_interrupt());
240223 	atl1c_down(adapter);
241224 	atl1c_up(adapter);
242225 	clear_bit(__AT_RESETTING, &adapter->flags);
....@@ -362,8 +345,9 @@
362345 /**
363346  * atl1c_tx_timeout - Respond to a Tx Hang
364347  * @netdev: network interface device structure
348
+ * @txqueue: index of hanging tx queue
365349  */
366
-static void atl1c_tx_timeout(struct net_device *netdev)
350
+static void atl1c_tx_timeout(struct net_device *netdev, unsigned int txqueue)
367351 {
368352 	struct atl1c_adapter *adapter = netdev_priv(netdev);
369353 
....@@ -842,16 +826,16 @@
842826 		return;
843827 	if (buffer_info->dma) {
844828 		if (buffer_info->flags & ATL1C_PCIMAP_FROMDEVICE)
845
-			pci_driection = PCI_DMA_FROMDEVICE;
829
+			pci_driection = DMA_FROM_DEVICE;
846830 		else
847
-			pci_driection = PCI_DMA_TODEVICE;
831
+			pci_driection = DMA_TO_DEVICE;
848832 
849833 		if (buffer_info->flags & ATL1C_PCIMAP_SINGLE)
850
-			pci_unmap_single(pdev, buffer_info->dma,
851
-					buffer_info->length, pci_driection);
834
+			dma_unmap_single(&pdev->dev, buffer_info->dma,
835
+					 buffer_info->length, pci_driection);
852836 		else if (buffer_info->flags & ATL1C_PCIMAP_PAGE)
853
-			pci_unmap_page(pdev, buffer_info->dma,
854
-					buffer_info->length, pci_driection);
837
+			dma_unmap_page(&pdev->dev, buffer_info->dma,
838
+				       buffer_info->length, pci_driection);
855839 	}
856840 	if (buffer_info->skb)
857841 		dev_consume_skb_any(buffer_info->skb);
....@@ -862,6 +846,7 @@
862846 /**
863847  * atl1c_clean_tx_ring - Free Tx-skb
864848  * @adapter: board private structure
849
+ * @type: type of transmit queue
865850  */
866851 static void atl1c_clean_tx_ring(struct atl1c_adapter *adapter,
867852 				enum atl1c_trans_queue type)
....@@ -949,9 +934,8 @@
949934 {
950935 	struct pci_dev *pdev = adapter->pdev;
951936 
952
-	pci_free_consistent(pdev, adapter->ring_header.size,
953
-					adapter->ring_header.desc,
954
-					adapter->ring_header.dma);
937
+	dma_free_coherent(&pdev->dev, adapter->ring_header.size,
938
+			  adapter->ring_header.desc, adapter->ring_header.dma);
955939 	adapter->ring_header.desc = NULL;
956940 
957941 	/* Note: just free tdp_ring.buffer_info,
....@@ -1019,8 +1003,8 @@
10191003 		sizeof(struct atl1c_recv_ret_status) * rx_desc_count +
10201004 		8 * 4;
10211005 
1022
-	ring_header->desc = dma_zalloc_coherent(&pdev->dev, ring_header->size,
1023
-						&ring_header->dma, GFP_KERNEL);
1006
+	ring_header->desc = dma_alloc_coherent(&pdev->dev, ring_header->size,
1007
+					       &ring_header->dma, GFP_KERNEL);
10241008 	if (unlikely(!ring_header->desc)) {
10251009 		dev_err(&pdev->dev, "could not get memory for DMA buffer\n");
10261010 		goto err_nomem;
....@@ -1202,7 +1186,7 @@
12021186 	struct atl1c_hw *hw = &adapter->hw;
12031187 	u32 mac, txq, rxq;
12041188 
1205
-	hw->mac_duplex = adapter->link_duplex == FULL_DUPLEX ? true : false;
1189
+	hw->mac_duplex = adapter->link_duplex == FULL_DUPLEX;
12061190 	hw->mac_speed = adapter->link_speed == SPEED_1000 ?
12071191 		atl1c_mac_speed_1000 : atl1c_mac_speed_10_100;
12081192 
....@@ -1733,10 +1717,9 @@
17331717 		ATL1C_SET_BUFFER_STATE(buffer_info, ATL1C_BUFFER_BUSY);
17341718 		buffer_info->skb = skb;
17351719 		buffer_info->length = adapter->rx_buffer_len;
1736
-		mapping = pci_map_single(pdev, vir_addr,
1737
-						buffer_info->length,
1738
-						PCI_DMA_FROMDEVICE);
1739
-		if (unlikely(pci_dma_mapping_error(pdev, mapping))) {
1720
+		mapping = dma_map_single(&pdev->dev, vir_addr,
1721
+					 buffer_info->length, DMA_FROM_DEVICE);
1722
+		if (unlikely(dma_mapping_error(&pdev->dev, mapping))) {
17401723 			dev_kfree_skb(skb);
17411724 			buffer_info->skb = NULL;
17421725 			buffer_info->length = 0;
....@@ -1833,10 +1816,10 @@
18331816 		atl1c_clean_rrd(rrd_ring, rrs, rfd_num);
18341817 		if (rrs->word3 & (RRS_RX_ERR_SUM | RRS_802_3_LEN_ERR)) {
18351818 			atl1c_clean_rfd(rfd_ring, rrs, rfd_num);
1836
-				if (netif_msg_rx_err(adapter))
1837
-					dev_warn(&pdev->dev,
1838
-						"wrong packet! rrs word3 is %x\n",
1839
-						rrs->word3);
1819
+			if (netif_msg_rx_err(adapter))
1820
+				dev_warn(&pdev->dev,
1821
+					 "wrong packet! rrs word3 is %x\n",
1822
+					 rrs->word3);
18401823 			continue;
18411824 		}
18421825 
....@@ -1847,8 +1830,8 @@
18471830 			rfd_index = (rrs->word0 >> RRS_RX_RFD_INDEX_SHIFT) &
18481831 					RRS_RX_RFD_INDEX_MASK;
18491832 			buffer_info = &rfd_ring->buffer_info[rfd_index];
1850
-			pci_unmap_single(pdev, buffer_info->dma,
1851
-				buffer_info->length, PCI_DMA_FROMDEVICE);
1833
+			dma_unmap_single(&pdev->dev, buffer_info->dma,
1834
+					 buffer_info->length, DMA_FROM_DEVICE);
18521835 			skb = buffer_info->skb;
18531836 		} else {
18541837 			/* TODO */
....@@ -1879,6 +1862,8 @@
18791862 
18801863 /**
18811864  * atl1c_clean - NAPI Rx polling callback
1865
+ * @napi: napi info
1866
+ * @budget: limit of packets to clean
18821867  */
18831868 static int atl1c_clean(struct napi_struct *napi, int budget)
18841869 {
....@@ -2002,8 +1987,11 @@
20021987 			real_len = (((unsigned char *)ip_hdr(skb) - skb->data)
20031988 					+ ntohs(ip_hdr(skb)->tot_len));
20041989 
2005
-			if (real_len < skb->len)
2006
-				pskb_trim(skb, real_len);
1990
+			if (real_len < skb->len) {
1991
+				err = pskb_trim(skb, real_len);
1992
+				if (err)
1993
+					return err;
1994
+			}
20071995 
20081996 			hdr_len = (skb_transport_offset(skb) + tcp_hdrlen(skb));
20091997 			if (unlikely(skb->len == hdr_len)) {
....@@ -2038,10 +2026,8 @@
20382026 						"IPV6 tso with zero data??\n");
20392027 				goto check_sum;
20402028 			} else
2041
-				tcp_hdr(skb)->check = ~csum_ipv6_magic(
2042
-						&ipv6_hdr(skb)->saddr,
2043
-						&ipv6_hdr(skb)->daddr,
2044
-						0, IPPROTO_TCP, 0);
2029
+				tcp_v6_gso_csum_prep(skb);
2030
+
20452031 			etpd->word1 |= 1 << TPD_LSO_EN_SHIFT;
20462032 			etpd->word1 |= 1 << TPD_LSO_VER_SHIFT;
20472033 			etpd->pkt_len = cpu_to_le32(skb->len);
....@@ -2124,10 +2110,10 @@
21242110 
21252111 		buffer_info = atl1c_get_tx_buffer(adapter, use_tpd);
21262112 		buffer_info->length = map_len;
2127
-		buffer_info->dma = pci_map_single(adapter->pdev,
2128
-					skb->data, hdr_len, PCI_DMA_TODEVICE);
2129
-		if (unlikely(pci_dma_mapping_error(adapter->pdev,
2130
-						   buffer_info->dma)))
2113
+		buffer_info->dma = dma_map_single(&adapter->pdev->dev,
2114
+						  skb->data, hdr_len,
2115
+						  DMA_TO_DEVICE);
2116
+		if (unlikely(dma_mapping_error(&adapter->pdev->dev, buffer_info->dma)))
21312117 			goto err_dma;
21322118 		ATL1C_SET_BUFFER_STATE(buffer_info, ATL1C_BUFFER_BUSY);
21332119 		ATL1C_SET_PCIMAP_TYPE(buffer_info, ATL1C_PCIMAP_SINGLE,
....@@ -2149,10 +2135,10 @@
21492135 		buffer_info = atl1c_get_tx_buffer(adapter, use_tpd);
21502136 		buffer_info->length = buf_len - mapped_len;
21512137 		buffer_info->dma =
2152
-			pci_map_single(adapter->pdev, skb->data + mapped_len,
2153
-					buffer_info->length, PCI_DMA_TODEVICE);
2154
-		if (unlikely(pci_dma_mapping_error(adapter->pdev,
2155
-						   buffer_info->dma)))
2138
+			dma_map_single(&adapter->pdev->dev,
2139
+				       skb->data + mapped_len,
2140
+				       buffer_info->length, DMA_TO_DEVICE);
2141
+		if (unlikely(dma_mapping_error(&adapter->pdev->dev, buffer_info->dma)))
21562142 			goto err_dma;
21572143 
21582144 		ATL1C_SET_BUFFER_STATE(buffer_info, ATL1C_BUFFER_BUSY);
....@@ -2163,9 +2149,7 @@
21632149 	}
21642150 
21652151 	for (f = 0; f < nr_frags; f++) {
2166
-		struct skb_frag_struct *frag;
2167
-
2168
-		frag = &skb_shinfo(skb)->frags[f];
2152
+		skb_frag_t *frag = &skb_shinfo(skb)->frags[f];
21692153 
21702154 		use_tpd = atl1c_get_tpd(adapter, type);
21712155 		memcpy(use_tpd, tpd, sizeof(struct atl1c_tpd_desc));
....@@ -2214,7 +2198,7 @@
22142198 					  struct net_device *netdev)
22152199 {
22162200 	struct atl1c_adapter *adapter = netdev_priv(netdev);
2217
-	u16 tpd_req = 1;
2201
+	u16 tpd_req;
22182202 	struct atl1c_tpd_desc *tpd;
22192203 	enum atl1c_trans_queue type = atl1c_trans_normal;
22202204 
....@@ -2435,8 +2419,7 @@
24352419 
24362420 static int atl1c_suspend(struct device *dev)
24372421 {
2438
-	struct pci_dev *pdev = to_pci_dev(dev);
2439
-	struct net_device *netdev = pci_get_drvdata(pdev);
2422
+	struct net_device *netdev = dev_get_drvdata(dev);
24402423 	struct atl1c_adapter *adapter = netdev_priv(netdev);
24412424 	struct atl1c_hw *hw = &adapter->hw;
24422425 	u32 wufc = adapter->wol;
....@@ -2450,7 +2433,7 @@
24502433 
24512434 	if (wufc)
24522435 		if (atl1c_phy_to_ps_link(hw) != 0)
2453
-			dev_dbg(&pdev->dev, "phy power saving failed");
2436
+			dev_dbg(dev, "phy power saving failed");
24542437 
24552438 	atl1c_power_saving(hw, wufc);
24562439 
....@@ -2460,8 +2443,7 @@
24602443 #ifdef CONFIG_PM_SLEEP
24612444 static int atl1c_resume(struct device *dev)
24622445 {
2463
-	struct pci_dev *pdev = to_pci_dev(dev);
2464
-	struct net_device *netdev = pci_get_drvdata(pdev);
2446
+	struct net_device *netdev = dev_get_drvdata(dev);
24652447 	struct atl1c_adapter *adapter = netdev_priv(netdev);
24662448 
24672449 	AT_WRITE_REG(&adapter->hw, REG_WOL_CTRL, 0);
....@@ -2470,12 +2452,6 @@
24702452 	atl1c_phy_reset(&adapter->hw);
24712453 	atl1c_reset_mac(&adapter->hw);
24722454 	atl1c_phy_init(&adapter->hw);
2473
-
2474
-#if 0
2475
-	AT_READ_REG(&adapter->hw, REG_PM_CTRLSTAT, &pm_data);
2476
-	pm_data &= ~PM_CTRLSTAT_PME_EN;
2477
-	AT_WRITE_REG(&adapter->hw, REG_PM_CTRLSTAT, pm_data);
2478
-#endif
24792455 
24802456 	netif_device_attach(netdev);
24812457 	if (netif_running(netdev))
....@@ -2570,8 +2546,8 @@
25702546 	 * various kernel subsystems to support the mechanics required by a
25712547 	 * fixed-high-32-bit system.
25722548 	 */
2573
-	if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0) ||
2574
-	    (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)) {
2549
+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
2550
+	if (err) {
25752551 		dev_err(&pdev->dev, "No usable DMA configuration,aborting\n");
25762552 		goto err_dma;
25772553 	}
....@@ -2661,8 +2637,6 @@
26612637 		goto err_register;
26622638 	}
26632639 
2664
-	if (netif_msg_probe(adapter))
2665
-		dev_info(&pdev->dev, "version %s\n", ATL1C_DRV_VERSION);
26662640 	cards_found++;
26672641 	return 0;
26682642