forked from ~ljy/RK356X_SDK_RELEASE
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hc
2023-12-11 072de836f53be56a70cecf70b43ae43b7ce17376 
 kernel/drivers/net/ethernet/sun/cassini.c
....@@ -237,12 +237,6 @@
237237 		spin_lock_nested(&cp->tx_lock[i], i);
238238 }
239239 
240
-static inline void cas_lock_all(struct cas *cp)
241
-{
242
-	spin_lock_irq(&cp->lock);
243
-	cas_lock_tx(cp);
244
-}
245
-
246240 /* WTZ: QA was finding deadlock problems with the previous
247241  * versions after long test runs with multiple cards per machine.
248242  * See if replacing cas_lock_all with safer versions helps. The
....@@ -264,12 +258,6 @@
264258 
265259 	for (i = N_TX_RINGS; i > 0; i--)
266260 		spin_unlock(&cp->tx_lock[i - 1]);
267
-}
268
-
269
-static inline void cas_unlock_all(struct cas *cp)
270
-{
271
-	cas_unlock_tx(cp);
272
-	spin_unlock_irq(&cp->lock);
273261 }
274262 
275263 #define cas_unlock_all_restore(cp, flags) \
....@@ -455,8 +443,8 @@
455443 /* cp->lock held. note: the last put_page will free the buffer */
456444 static int cas_page_free(struct cas *cp, cas_page_t *page)
457445 {
458
-	pci_unmap_page(cp->pdev, page->dma_addr, cp->page_size,
459
-		       PCI_DMA_FROMDEVICE);
446
+	dma_unmap_page(&cp->pdev->dev, page->dma_addr, cp->page_size,
447
+		       DMA_FROM_DEVICE);
460448 	__free_pages(page->buffer, cp->page_order);
461449 	kfree(page);
462450 	return 0;
....@@ -466,8 +454,8 @@
466454 #define RX_USED_ADD(x, y)       ((x)->used += (y))
467455 #define RX_USED_SET(x, y)       ((x)->used  = (y))
468456 #else
469
-#define RX_USED_ADD(x, y)
470
-#define RX_USED_SET(x, y)
457
+#define RX_USED_ADD(x, y) do { } while(0)
458
+#define RX_USED_SET(x, y) do { } while(0)
471459 #endif
472460 
473461 /* local page allocation routines for the receive buffers. jumbo pages
....@@ -486,8 +474,8 @@
486474 	page->buffer = alloc_pages(flags, cp->page_order);
487475 	if (!page->buffer)
488476 		goto page_err;
489
-	page->dma_addr = pci_map_page(cp->pdev, page->buffer, 0,
490
-				      cp->page_size, PCI_DMA_FROMDEVICE);
477
+	page->dma_addr = dma_map_page(&cp->pdev->dev, page->buffer, 0,
478
+				      cp->page_size, DMA_FROM_DEVICE);
491479 	return page;
492480 
493481 page_err:
....@@ -1716,34 +1704,26 @@
17161704 	pr_cont("\n");
17171705 
17181706 	if (stat & PCI_ERR_OTHER) {
1719
-		u16 cfg;
1707
+		int pci_errs;
17201708 
17211709 		/* Interrogate PCI config space for the
17221710 		 * true cause.
17231711 		 */
1724
-		pci_read_config_word(cp->pdev, PCI_STATUS, &cfg);
1725
-		netdev_err(dev, "Read PCI cfg space status [%04x]\n", cfg);
1726
-		if (cfg & PCI_STATUS_PARITY)
1727
-			netdev_err(dev, "PCI parity error detected\n");
1728
-		if (cfg & PCI_STATUS_SIG_TARGET_ABORT)
1729
-			netdev_err(dev, "PCI target abort\n");
1730
-		if (cfg & PCI_STATUS_REC_TARGET_ABORT)
1731
-			netdev_err(dev, "PCI master acks target abort\n");
1732
-		if (cfg & PCI_STATUS_REC_MASTER_ABORT)
1733
-			netdev_err(dev, "PCI master abort\n");
1734
-		if (cfg & PCI_STATUS_SIG_SYSTEM_ERROR)
1735
-			netdev_err(dev, "PCI system error SERR#\n");
1736
-		if (cfg & PCI_STATUS_DETECTED_PARITY)
1737
-			netdev_err(dev, "PCI parity error\n");
1712
+		pci_errs = pci_status_get_and_clear_errors(cp->pdev);
17381713 
1739
-		/* Write the error bits back to clear them. */
1740
-		cfg &= (PCI_STATUS_PARITY |
1741
-			PCI_STATUS_SIG_TARGET_ABORT |
1742
-			PCI_STATUS_REC_TARGET_ABORT |
1743
-			PCI_STATUS_REC_MASTER_ABORT |
1744
-			PCI_STATUS_SIG_SYSTEM_ERROR |
1745
-			PCI_STATUS_DETECTED_PARITY);
1746
-		pci_write_config_word(cp->pdev, PCI_STATUS, cfg);
1714
+		netdev_err(dev, "PCI status errors[%04x]\n", pci_errs);
1715
+		if (pci_errs & PCI_STATUS_PARITY)
1716
+			netdev_err(dev, "PCI parity error detected\n");
1717
+		if (pci_errs & PCI_STATUS_SIG_TARGET_ABORT)
1718
+			netdev_err(dev, "PCI target abort\n");
1719
+		if (pci_errs & PCI_STATUS_REC_TARGET_ABORT)
1720
+			netdev_err(dev, "PCI master acks target abort\n");
1721
+		if (pci_errs & PCI_STATUS_REC_MASTER_ABORT)
1722
+			netdev_err(dev, "PCI master abort\n");
1723
+		if (pci_errs & PCI_STATUS_SIG_SYSTEM_ERROR)
1724
+			netdev_err(dev, "PCI system error SERR#\n");
1725
+		if (pci_errs & PCI_STATUS_DETECTED_PARITY)
1726
+			netdev_err(dev, "PCI parity error\n");
17471727 	}
17481728 
17491729 	/* For all PCI errors, we should reset the chip. */
....@@ -1883,8 +1863,8 @@
18831863 			daddr = le64_to_cpu(txd->buffer);
18841864 			dlen = CAS_VAL(TX_DESC_BUFLEN,
18851865 				       le64_to_cpu(txd->control));
1886
-			pci_unmap_page(cp->pdev, daddr, dlen,
1887
-				       PCI_DMA_TODEVICE);
1866
+			dma_unmap_page(&cp->pdev->dev, daddr, dlen,
1867
+				       DMA_TO_DEVICE);
18881868 			entry = TX_DESC_NEXT(ring, entry);
18891869 
18901870 			/* tiny buffer may follow */
....@@ -1898,7 +1878,7 @@
18981878 		cp->net_stats[ring].tx_packets++;
18991879 		cp->net_stats[ring].tx_bytes += skb->len;
19001880 		spin_unlock(&cp->stat_lock[ring]);
1901
-		dev_kfree_skb_irq(skb);
1881
+		dev_consume_skb_irq(skb);
19021882 	}
19031883 	cp->tx_old[ring] = entry;
19041884 
....@@ -1977,12 +1957,13 @@
19771957 		i = hlen;
19781958 		if (!dlen) /* attach FCS */
19791959 			i += cp->crc_size;
1980
-		pci_dma_sync_single_for_cpu(cp->pdev, page->dma_addr + off, i,
1981
-				    PCI_DMA_FROMDEVICE);
1960
+		dma_sync_single_for_cpu(&cp->pdev->dev, page->dma_addr + off,
1961
+					i, DMA_FROM_DEVICE);
19821962 		addr = cas_page_map(page->buffer);
19831963 		memcpy(p, addr + off, i);
1984
-		pci_dma_sync_single_for_device(cp->pdev, page->dma_addr + off, i,
1985
-				    PCI_DMA_FROMDEVICE);
1964
+		dma_sync_single_for_device(&cp->pdev->dev,
1965
+					   page->dma_addr + off, i,
1966
+					   DMA_FROM_DEVICE);
19861967 		cas_page_unmap(addr);
19871968 		RX_USED_ADD(page, 0x100);
19881969 		p += hlen;
....@@ -2008,16 +1989,17 @@
20081989 		i = hlen;
20091990 		if (i == dlen)  /* attach FCS */
20101991 			i += cp->crc_size;
2011
-		pci_dma_sync_single_for_cpu(cp->pdev, page->dma_addr + off, i,
2012
-				    PCI_DMA_FROMDEVICE);
1992
+		dma_sync_single_for_cpu(&cp->pdev->dev, page->dma_addr + off,
1993
+					i, DMA_FROM_DEVICE);
20131994 
20141995 		/* make sure we always copy a header */
20151996 		swivel = 0;
20161997 		if (p == (char *) skb->data) { /* not split */
20171998 			addr = cas_page_map(page->buffer);
20181999 			memcpy(p, addr + off, RX_COPY_MIN);
2019
-			pci_dma_sync_single_for_device(cp->pdev, page->dma_addr + off, i,
2020
-					PCI_DMA_FROMDEVICE);
2000
+			dma_sync_single_for_device(&cp->pdev->dev,
2001
+						   page->dma_addr + off, i,
2002
+						   DMA_FROM_DEVICE);
20212003 			cas_page_unmap(addr);
20222004 			off += RX_COPY_MIN;
20232005 			swivel = RX_COPY_MIN;
....@@ -2034,7 +2016,7 @@
20342016 
20352017 		__skb_frag_set_page(frag, page->buffer);
20362018 		__skb_frag_ref(frag);
2037
-		frag->page_offset = off;
2019
+		skb_frag_off_set(frag, off);
20382020 		skb_frag_size_set(frag, hlen - swivel);
20392021 
20402022 		/* any more data? */
....@@ -2044,12 +2026,14 @@
20442026 
20452027 			i = CAS_VAL(RX_COMP2_NEXT_INDEX, words[1]);
20462028 			page = cp->rx_pages[CAS_VAL(RX_INDEX_RING, i)][CAS_VAL(RX_INDEX_NUM, i)];
2047
-			pci_dma_sync_single_for_cpu(cp->pdev, page->dma_addr,
2048
-					    hlen + cp->crc_size,
2049
-					    PCI_DMA_FROMDEVICE);
2050
-			pci_dma_sync_single_for_device(cp->pdev, page->dma_addr,
2051
-					    hlen + cp->crc_size,
2052
-					    PCI_DMA_FROMDEVICE);
2029
+			dma_sync_single_for_cpu(&cp->pdev->dev,
2030
+						page->dma_addr,
2031
+						hlen + cp->crc_size,
2032
+						DMA_FROM_DEVICE);
2033
+			dma_sync_single_for_device(&cp->pdev->dev,
2034
+						   page->dma_addr,
2035
+						   hlen + cp->crc_size,
2036
+						   DMA_FROM_DEVICE);
20532037 
20542038 			skb_shinfo(skb)->nr_frags++;
20552039 			skb->data_len += hlen;
....@@ -2058,7 +2042,7 @@
20582042 
20592043 			__skb_frag_set_page(frag, page->buffer);
20602044 			__skb_frag_ref(frag);
2061
-			frag->page_offset = 0;
2045
+			skb_frag_off_set(frag, 0);
20622046 			skb_frag_size_set(frag, hlen);
20632047 			RX_USED_ADD(page, hlen + cp->crc_size);
20642048 		}
....@@ -2086,12 +2070,13 @@
20862070 		i = hlen;
20872071 		if (i == dlen) /* attach FCS */
20882072 			i += cp->crc_size;
2089
-		pci_dma_sync_single_for_cpu(cp->pdev, page->dma_addr + off, i,
2090
-				    PCI_DMA_FROMDEVICE);
2073
+		dma_sync_single_for_cpu(&cp->pdev->dev, page->dma_addr + off,
2074
+					i, DMA_FROM_DEVICE);
20912075 		addr = cas_page_map(page->buffer);
20922076 		memcpy(p, addr + off, i);
2093
-		pci_dma_sync_single_for_device(cp->pdev, page->dma_addr + off, i,
2094
-				    PCI_DMA_FROMDEVICE);
2077
+		dma_sync_single_for_device(&cp->pdev->dev,
2078
+					   page->dma_addr + off, i,
2079
+					   DMA_FROM_DEVICE);
20952080 		cas_page_unmap(addr);
20962081 		if (p == (char *) skb->data) /* not split */
20972082 			RX_USED_ADD(page, cp->mtu_stride);
....@@ -2103,14 +2088,16 @@
21032088 			p += hlen;
21042089 			i = CAS_VAL(RX_COMP2_NEXT_INDEX, words[1]);
21052090 			page = cp->rx_pages[CAS_VAL(RX_INDEX_RING, i)][CAS_VAL(RX_INDEX_NUM, i)];
2106
-			pci_dma_sync_single_for_cpu(cp->pdev, page->dma_addr,
2107
-					    dlen + cp->crc_size,
2108
-					    PCI_DMA_FROMDEVICE);
2091
+			dma_sync_single_for_cpu(&cp->pdev->dev,
2092
+						page->dma_addr,
2093
+						dlen + cp->crc_size,
2094
+						DMA_FROM_DEVICE);
21092095 			addr = cas_page_map(page->buffer);
21102096 			memcpy(p, addr, dlen + cp->crc_size);
2111
-			pci_dma_sync_single_for_device(cp->pdev, page->dma_addr,
2112
-					    dlen + cp->crc_size,
2113
-					    PCI_DMA_FROMDEVICE);
2097
+			dma_sync_single_for_device(&cp->pdev->dev,
2098
+						   page->dma_addr,
2099
+						   dlen + cp->crc_size,
2100
+						   DMA_FROM_DEVICE);
21142101 			cas_page_unmap(addr);
21152102 			RX_USED_ADD(page, dlen + cp->crc_size);
21162103 		}
....@@ -2291,7 +2278,7 @@
22912278 	drops = 0;
22922279 	while (1) {
22932280 		struct cas_rx_comp *rxc = rxcs + entry;
2294
-		struct sk_buff *uninitialized_var(skb);
2281
+		struct sk_buff *skb;
22952282 		int type, len;
22962283 		u64 words[4];
22972284 		int i, dring;
....@@ -2666,7 +2653,7 @@
26662653 }
26672654 #endif
26682655 
2669
-static void cas_tx_timeout(struct net_device *dev)
2656
+static void cas_tx_timeout(struct net_device *dev, unsigned int txqueue)
26702657 {
26712658 	struct cas *cp = netdev_priv(dev);
26722659 
....@@ -2786,9 +2773,8 @@
27862773 
27872774 	nr_frags = skb_shinfo(skb)->nr_frags;
27882775 	len = skb_headlen(skb);
2789
-	mapping = pci_map_page(cp->pdev, virt_to_page(skb->data),
2790
-			       offset_in_page(skb->data), len,
2791
-			       PCI_DMA_TODEVICE);
2776
+	mapping = dma_map_page(&cp->pdev->dev, virt_to_page(skb->data),
2777
+			       offset_in_page(skb->data), len, DMA_TO_DEVICE);
27922778 
27932779 	tentry = entry;
27942780 	tabort = cas_calc_tabort(cp, (unsigned long) skb->data, len);
....@@ -2816,7 +2802,7 @@
28162802 		mapping = skb_frag_dma_map(&cp->pdev->dev, fragp, 0, len,
28172803 					   DMA_TO_DEVICE);
28182804 
2819
-		tabort = cas_calc_tabort(cp, fragp->page_offset, len);
2805
+		tabort = cas_calc_tabort(cp, skb_frag_off(fragp), len);
28202806 		if (unlikely(tabort)) {
28212807 			void *addr;
28222808 
....@@ -2827,7 +2813,7 @@
28272813 
28282814 			addr = cas_page_map(skb_frag_page(fragp));
28292815 			memcpy(tx_tiny_buf(cp, ring, entry),
2830
-			       addr + fragp->page_offset + len - tabort,
2816
+			       addr + skb_frag_off(fragp) + len - tabort,
28312817 			       tabort);
28322818 			cas_page_unmap(addr);
28332819 			mapping = tx_tiny_map(cp, ring, entry, tentry);
....@@ -3902,8 +3888,8 @@
39023888 			daddr = le64_to_cpu(txd[ent].buffer);
39033889 			dlen  =  CAS_VAL(TX_DESC_BUFLEN,
39043890 					 le64_to_cpu(txd[ent].control));
3905
-			pci_unmap_page(cp->pdev, daddr, dlen,
3906
-				       PCI_DMA_TODEVICE);
3891
+			dma_unmap_page(&cp->pdev->dev, daddr, dlen,
3892
+				       DMA_TO_DEVICE);
39073893 
39083894 			if (frag != skb_shinfo(skb)->nr_frags) {
39093895 				i++;
....@@ -4201,9 +4187,8 @@
42014187 		if (!cp->tx_tiny_bufs[i])
42024188 			continue;
42034189 
4204
-		pci_free_consistent(pdev, TX_TINY_BUF_BLOCK,
4205
-				    cp->tx_tiny_bufs[i],
4206
-				    cp->tx_tiny_dvma[i]);
4190
+		dma_free_coherent(&pdev->dev, TX_TINY_BUF_BLOCK,
4191
+				  cp->tx_tiny_bufs[i], cp->tx_tiny_dvma[i]);
42074192 		cp->tx_tiny_bufs[i] = NULL;
42084193 	}
42094194 }
....@@ -4215,8 +4200,8 @@
42154200 
42164201 	for (i = 0; i < N_TX_RINGS; i++) {
42174202 		cp->tx_tiny_bufs[i] =
4218
-			pci_alloc_consistent(pdev, TX_TINY_BUF_BLOCK,
4219
-					     &cp->tx_tiny_dvma[i]);
4203
+			dma_alloc_coherent(&pdev->dev, TX_TINY_BUF_BLOCK,
4204
+					   &cp->tx_tiny_dvma[i], GFP_KERNEL);
42204205 		if (!cp->tx_tiny_bufs[i]) {
42214206 			cas_tx_tiny_free(cp);
42224207 			return -1;
....@@ -4774,7 +4759,7 @@
47744759 	switch (cmd) {
47754760 	case SIOCGMIIPHY:		/* Get address of MII PHY in use. */
47764761 		data->phy_id = cp->phy_addr;
4777
-		/* Fallthrough... */
4762
+		fallthrough;
47784763 
47794764 	case SIOCGMIIREG:		/* Read MII PHY register. */
47804765 		spin_lock_irqsave(&cp->lock, flags);
....@@ -4978,10 +4963,9 @@
49784963 
49794964 
49804965 	/* Configure DMA attributes. */
4981
-	if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
4966
+	if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
49824967 		pci_using_dac = 1;
4983
-		err = pci_set_consistent_dma_mask(pdev,
4984
-						  DMA_BIT_MASK(64));
4968
+		err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
49854969 		if (err < 0) {
49864970 			dev_err(&pdev->dev, "Unable to obtain 64-bit DMA "
49874971 			       "for consistent allocations\n");
....@@ -4989,7 +4973,7 @@
49894973 		}
49904974 
49914975 	} else {
4992
-		err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
4976
+		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
49934977 		if (err) {
49944978 			dev_err(&pdev->dev, "No usable DMA configuration, "
49954979 			       "aborting\n");
....@@ -5067,9 +5051,9 @@
50675051 	if (cp->cas_flags & CAS_FLAG_SATURN)
50685052 		cas_saturn_firmware_init(cp);
50695053 
5070
-	cp->init_block = (struct cas_init_block *)
5071
-		pci_alloc_consistent(pdev, sizeof(struct cas_init_block),
5072
-				     &cp->block_dvma);
5054
+	cp->init_block =
5055
+		dma_alloc_coherent(&pdev->dev, sizeof(struct cas_init_block),
5056
+				   &cp->block_dvma, GFP_KERNEL);
50735057 	if (!cp->init_block) {
50745058 		dev_err(&pdev->dev, "Cannot allocate init block, aborting\n");
50755059 		goto err_out_iounmap;
....@@ -5129,8 +5113,8 @@
51295113 	return 0;
51305114 
51315115 err_out_free_consistent:
5132
-	pci_free_consistent(pdev, sizeof(struct cas_init_block),
5133
-			    cp->init_block, cp->block_dvma);
5116
+	dma_free_coherent(&pdev->dev, sizeof(struct cas_init_block),
5117
+			  cp->init_block, cp->block_dvma);
51345118 
51355119 err_out_iounmap:
51365120 	mutex_lock(&cp->pm_mutex);
....@@ -5184,18 +5168,17 @@
51845168 				      cp->orig_cacheline_size);
51855169 	}
51865170 #endif
5187
-	pci_free_consistent(pdev, sizeof(struct cas_init_block),
5188
-			    cp->init_block, cp->block_dvma);
5171
+	dma_free_coherent(&pdev->dev, sizeof(struct cas_init_block),
5172
+			  cp->init_block, cp->block_dvma);
51895173 	pci_iounmap(pdev, cp->regs);
51905174 	free_netdev(dev);
51915175 	pci_release_regions(pdev);
51925176 	pci_disable_device(pdev);
51935177 }
51945178 
5195
-#ifdef CONFIG_PM
5196
-static int cas_suspend(struct pci_dev *pdev, pm_message_t state)
5179
+static int __maybe_unused cas_suspend(struct device *dev_d)
51975180 {
5198
-	struct net_device *dev = pci_get_drvdata(pdev);
5181
+	struct net_device *dev = dev_get_drvdata(dev_d);
51995182 	struct cas *cp = netdev_priv(dev);
52005183 	unsigned long flags;
52015184 
....@@ -5224,9 +5207,9 @@
52245207 	return 0;
52255208 }
52265209 
5227
-static int cas_resume(struct pci_dev *pdev)
5210
+static int __maybe_unused cas_resume(struct device *dev_d)
52285211 {
5229
-	struct net_device *dev = pci_get_drvdata(pdev);
5212
+	struct net_device *dev = dev_get_drvdata(dev_d);
52305213 	struct cas *cp = netdev_priv(dev);
52315214 
52325215 	netdev_info(dev, "resuming\n");
....@@ -5247,17 +5230,15 @@
52475230 	mutex_unlock(&cp->pm_mutex);
52485231 	return 0;
52495232 }
5250
-#endif /* CONFIG_PM */
5233
+
5234
+static SIMPLE_DEV_PM_OPS(cas_pm_ops, cas_suspend, cas_resume);
52515235 
52525236 static struct pci_driver cas_driver = {
52535237 	.name		= DRV_MODULE_NAME,
52545238 	.id_table	= cas_pci_tbl,
52555239 	.probe		= cas_init_one,
52565240 	.remove		= cas_remove_one,
5257
-#ifdef CONFIG_PM
5258
-	.suspend	= cas_suspend,
5259
-	.resume		= cas_resume
5260
-#endif
5241
+	.driver.pm	= &cas_pm_ops,
52615242 };
52625243 
52635244 static int __init cas_init(void)