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2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d 
 kernel/drivers/net/ethernet/jme.c
....@@ -1,25 +1,12 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /*
23  * JMicron JMC2x0 series PCIe Ethernet Linux Device Driver
34  *
45  * Copyright 2008 JMicron Technology Corporation
5
- * http://www.jmicron.com/
6
+ * https://www.jmicron.com/
67  * Copyright (c) 2009 - 2010 Guo-Fu Tseng <cooldavid@cooldavid.org>
78  *
89  * Author: Guo-Fu Tseng <cooldavid@cooldavid.org>
9
- *
10
- * This program is free software; you can redistribute it and/or modify
11
- * it under the terms of the GNU General Public License as published by
12
- * the Free Software Foundation; either version 2 of the License.
13
- *
14
- * This program is distributed in the hope that it will be useful,
15
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
16
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
- * GNU General Public License for more details.
18
- *
19
- * You should have received a copy of the GNU General Public License
20
- * along with this program; if not, write to the Free Software
21
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22
- *
2310  */
2411 
2512 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
....@@ -27,7 +14,6 @@
2714 #include <linux/module.h>
2815 #include <linux/kernel.h>
2916 #include <linux/pci.h>
30
-#include <linux/pci-aspm.h>
3117 #include <linux/netdevice.h>
3218 #include <linux/etherdevice.h>
3319 #include <linux/ethtool.h>
....@@ -594,11 +580,6 @@
594580 						GFP_ATOMIC);
595581 	if (unlikely(!(txring->bufinf)))
596582 		goto err_free_txring;
597
-
598
-	/*
599
-	 * Initialize Transmit Descriptors
600
-	 */
601
-	memset(txring->alloc, 0, TX_RING_ALLOC_SIZE(jme->tx_ring_size));
602583 
603584 	return 0;
604585 
....@@ -1206,9 +1187,9 @@
12061187 }
12071188 
12081189 static void
1209
-jme_pcc_tasklet(unsigned long arg)
1190
+jme_pcc_tasklet(struct tasklet_struct *t)
12101191 {
1211
-	struct jme_adapter *jme = (struct jme_adapter *)arg;
1192
+	struct jme_adapter *jme = from_tasklet(jme, t, pcc_task);
12121193 	struct net_device *netdev = jme->dev;
12131194 
12141195 	if (unlikely(test_bit(JME_FLAG_SHUTDOWN, &jme->flags))) {
....@@ -1284,10 +1265,9 @@
12841265 	jwrite32f(jme, JME_APMC, apmc);
12851266 }
12861267 
1287
-static void
1288
-jme_link_change_tasklet(unsigned long arg)
1268
+static void jme_link_change_work(struct work_struct *work)
12891269 {
1290
-	struct jme_adapter *jme = (struct jme_adapter *)arg;
1270
+	struct jme_adapter *jme = container_of(work, struct jme_adapter, linkch_task);
12911271 	struct net_device *netdev = jme->dev;
12921272 	int rc;
12931273 
....@@ -1364,9 +1344,9 @@
13641344 }
13651345 
13661346 static void
1367
-jme_rx_clean_tasklet(unsigned long arg)
1347
+jme_rx_clean_tasklet(struct tasklet_struct *t)
13681348 {
1369
-	struct jme_adapter *jme = (struct jme_adapter *)arg;
1349
+	struct jme_adapter *jme = from_tasklet(jme, t, rxclean_task);
13701350 	struct dynpcc_info *dpi = &(jme->dpi);
13711351 
13721352 	jme_process_receive(jme, jme->rx_ring_size);
....@@ -1399,9 +1379,9 @@
13991379 }
14001380 
14011381 static void
1402
-jme_rx_empty_tasklet(unsigned long arg)
1382
+jme_rx_empty_tasklet(struct tasklet_struct *t)
14031383 {
1404
-	struct jme_adapter *jme = (struct jme_adapter *)arg;
1384
+	struct jme_adapter *jme = from_tasklet(jme, t, rxempty_task);
14051385 
14061386 	if (unlikely(atomic_read(&jme->link_changing) != 1))
14071387 		return;
....@@ -1411,7 +1391,7 @@
14111391 
14121392 	netif_info(jme, rx_status, jme->dev, "RX Queue Full!\n");
14131393 
1414
-	jme_rx_clean_tasklet(arg);
1394
+	jme_rx_clean_tasklet(&jme->rxclean_task);
14151395 
14161396 	while (atomic_read(&jme->rx_empty) > 0) {
14171397 		atomic_dec(&jme->rx_empty);
....@@ -1435,10 +1415,9 @@
14351415 
14361416 }
14371417 
1438
-static void
1439
-jme_tx_clean_tasklet(unsigned long arg)
1418
+static void jme_tx_clean_tasklet(struct tasklet_struct *t)
14401419 {
1441
-	struct jme_adapter *jme = (struct jme_adapter *)arg;
1420
+	struct jme_adapter *jme = from_tasklet(jme, t, txclean_task);
14421421 	struct jme_ring *txring = &(jme->txring[0]);
14431422 	struct txdesc *txdesc = txring->desc;
14441423 	struct jme_buffer_info *txbi = txring->bufinf, *ctxbi, *ttxbi;
....@@ -1531,7 +1510,7 @@
15311510 		 * all other events are ignored
15321511 		 */
15331512 		jwrite32(jme, JME_IEVE, intrstat);
1534
-		tasklet_schedule(&jme->linkch_task);
1513
+		schedule_work(&jme->linkch_task);
15351514 		goto out_reenable;
15361515 	}
15371516 
....@@ -1853,14 +1832,9 @@
18531832 	jme_clear_pm_disable_wol(jme);
18541833 	JME_NAPI_ENABLE(jme);
18551834 
1856
-	tasklet_init(&jme->linkch_task, jme_link_change_tasklet,
1857
-		     (unsigned long) jme);
1858
-	tasklet_init(&jme->txclean_task, jme_tx_clean_tasklet,
1859
-		     (unsigned long) jme);
1860
-	tasklet_init(&jme->rxclean_task, jme_rx_clean_tasklet,
1861
-		     (unsigned long) jme);
1862
-	tasklet_init(&jme->rxempty_task, jme_rx_empty_tasklet,
1863
-		     (unsigned long) jme);
1835
+	tasklet_setup(&jme->txclean_task, jme_tx_clean_tasklet);
1836
+	tasklet_setup(&jme->rxclean_task, jme_rx_clean_tasklet);
1837
+	tasklet_setup(&jme->rxempty_task, jme_rx_empty_tasklet);
18641838 
18651839 	rc = jme_request_irq(jme);
18661840 	if (rc)
....@@ -1945,7 +1919,7 @@
19451919 
19461920 	JME_NAPI_DISABLE(jme);
19471921 
1948
-	tasklet_kill(&jme->linkch_task);
1922
+	cancel_work_sync(&jme->linkch_task);
19491923 	tasklet_kill(&jme->txclean_task);
19501924 	tasklet_kill(&jme->rxclean_task);
19511925 	tasklet_kill(&jme->rxempty_task);
....@@ -2034,10 +2008,9 @@
20342008 				ctxbi->len,
20352009 				PCI_DMA_TODEVICE);
20362010 
2037
-				ctxbi->mapping = 0;
2038
-				ctxbi->len = 0;
2011
+		ctxbi->mapping = 0;
2012
+		ctxbi->len = 0;
20392013 	}
2040
-
20412014 }
20422015 
20432016 static int
....@@ -2049,23 +2022,22 @@
20492022 	bool hidma = jme->dev->features & NETIF_F_HIGHDMA;
20502023 	int i, nr_frags = skb_shinfo(skb)->nr_frags;
20512024 	int mask = jme->tx_ring_mask;
2052
-	const struct skb_frag_struct *frag;
20532025 	u32 len;
20542026 	int ret = 0;
20552027 
20562028 	for (i = 0 ; i < nr_frags ; ++i) {
2057
-		frag = &skb_shinfo(skb)->frags[i];
2029
+		const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
2030
+
20582031 		ctxdesc = txdesc + ((idx + i + 2) & (mask));
20592032 		ctxbi = txbi + ((idx + i + 2) & (mask));
20602033 
20612034 		ret = jme_fill_tx_map(jme->pdev, ctxdesc, ctxbi,
2062
-				skb_frag_page(frag),
2063
-				frag->page_offset, skb_frag_size(frag), hidma);
2035
+				      skb_frag_page(frag), skb_frag_off(frag),
2036
+				      skb_frag_size(frag), hidma);
20642037 		if (ret) {
20652038 			jme_drop_tx_map(jme, idx, i);
20662039 			goto out;
20672040 		}
2068
-
20692041 	}
20702042 
20712043 	len = skb_is_nonlinear(skb) ? skb_headlen(skb) : skb->len;
....@@ -2098,12 +2070,7 @@
20982070 								IPPROTO_TCP,
20992071 								0);
21002072 		} else {
2101
-			struct ipv6hdr *ip6h = ipv6_hdr(skb);
2102
-
2103
-			tcp_hdr(skb)->check = ~csum_ipv6_magic(&ip6h->saddr,
2104
-								&ip6h->daddr, 0,
2105
-								IPPROTO_TCP,
2106
-								0);
2073
+			tcp_v6_gso_csum_prep(skb);
21072074 		}
21082075 
21092076 		return 0;
....@@ -2358,7 +2325,7 @@
23582325 }
23592326 
23602327 static void
2361
-jme_tx_timeout(struct net_device *netdev)
2328
+jme_tx_timeout(struct net_device *netdev, unsigned int txqueue)
23622329 {
23632330 	struct jme_adapter *jme = netdev_priv(netdev);
23642331 
....@@ -2865,6 +2832,9 @@
28652832 }
28662833 
28672834 static const struct ethtool_ops jme_ethtool_ops = {
2835
+	.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
2836
+				     ETHTOOL_COALESCE_MAX_FRAMES |
2837
+				     ETHTOOL_COALESCE_USE_ADAPTIVE_RX,
28682838 	.get_drvinfo            = jme_get_drvinfo,
28692839 	.get_regs_len		= jme_get_regs_len,
28702840 	.get_regs		= jme_get_regs,
....@@ -3063,9 +3033,8 @@
30633033 	atomic_set(&jme->tx_cleaning, 1);
30643034 	atomic_set(&jme->rx_empty, 1);
30653035 
3066
-	tasklet_init(&jme->pcc_task,
3067
-		     jme_pcc_tasklet,
3068
-		     (unsigned long) jme);
3036
+	tasklet_setup(&jme->pcc_task, jme_pcc_tasklet);
3037
+	INIT_WORK(&jme->linkch_task, jme_link_change_work);
30693038 	jme->dpi.cur = PCC_P1;
30703039 
30713040 	jme->reg_ghc = 0;
....@@ -3212,8 +3181,7 @@
32123181 static int
32133182 jme_suspend(struct device *dev)
32143183 {
3215
-	struct pci_dev *pdev = to_pci_dev(dev);
3216
-	struct net_device *netdev = pci_get_drvdata(pdev);
3184
+	struct net_device *netdev = dev_get_drvdata(dev);
32173185 	struct jme_adapter *jme = netdev_priv(netdev);
32183186 
32193187 	if (!netif_running(netdev))
....@@ -3255,8 +3223,7 @@
32553223 static int
32563224 jme_resume(struct device *dev)
32573225 {
3258
-	struct pci_dev *pdev = to_pci_dev(dev);
3259
-	struct net_device *netdev = pci_get_drvdata(pdev);
3226
+	struct net_device *netdev = dev_get_drvdata(dev);
32603227 	struct jme_adapter *jme = netdev_priv(netdev);
32613228 
32623229 	if (!netif_running(netdev))