forked from ~ljy/RK356X_SDK_RELEASE
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hc
2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c 
 kernel/drivers/net/vmxnet3/vmxnet3_drv.c
....@@ -1,7 +1,7 @@
11 /*
22  * Linux driver for VMware's vmxnet3 ethernet NIC.
33  *
4
- * Copyright (C) 2008-2016, VMware, Inc. All Rights Reserved.
4
+ * Copyright (C) 2008-2020, VMware, Inc. All Rights Reserved.
55  *
66  * This program is free software; you can redistribute it and/or modify it
77  * under the terms of the GNU General Public License as published by the
....@@ -535,8 +535,8 @@
535535 	}
536536 
537537 	sz = tq->tx_ring.size * sizeof(tq->buf_info[0]);
538
-	tq->buf_info = dma_zalloc_coherent(&adapter->pdev->dev, sz,
539
-					   &tq->buf_info_pa, GFP_KERNEL);
538
+	tq->buf_info = dma_alloc_coherent(&adapter->pdev->dev, sz,
539
+					  &tq->buf_info_pa, GFP_KERNEL);
540540 	if (!tq->buf_info)
541541 		goto err;
542542 
....@@ -595,6 +595,7 @@
595595 				if (dma_mapping_error(&adapter->pdev->dev,
596596 						      rbi->dma_addr)) {
597597 					dev_kfree_skb_any(rbi->skb);
598
+					rbi->skb = NULL;
598599 					rq->stats.rx_buf_alloc_failure++;
599600 					break;
600601 				}
....@@ -619,6 +620,7 @@
619620 				if (dma_mapping_error(&adapter->pdev->dev,
620621 						      rbi->dma_addr)) {
621622 					put_page(rbi->page);
623
+					rbi->page = NULL;
622624 					rq->stats.rx_buf_alloc_failure++;
623625 					break;
624626 				}
....@@ -657,13 +659,12 @@
657659 vmxnet3_append_frag(struct sk_buff *skb, struct Vmxnet3_RxCompDesc *rcd,
658660 		    struct vmxnet3_rx_buf_info *rbi)
659661 {
660
-	struct skb_frag_struct *frag = skb_shinfo(skb)->frags +
661
-		skb_shinfo(skb)->nr_frags;
662
+	skb_frag_t *frag = skb_shinfo(skb)->frags + skb_shinfo(skb)->nr_frags;
662663 
663664 	BUG_ON(skb_shinfo(skb)->nr_frags >= MAX_SKB_FRAGS);
664665 
665666 	__skb_frag_set_page(frag, rbi->page);
666
-	frag->page_offset = 0;
667
+	skb_frag_off_set(frag, 0);
667668 	skb_frag_size_set(frag, rcd->len);
668669 	skb->data_len += rcd->len;
669670 	skb->truesize += PAGE_SIZE;
....@@ -755,7 +756,7 @@
755756 	}
756757 
757758 	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
758
-		const struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i];
759
+		const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
759760 		u32 buf_size;
760761 
761762 		buf_offset = 0;
....@@ -843,26 +844,52 @@
843844 	u8 protocol = 0;
844845 
845846 	if (ctx->mss) {	/* TSO */
846
-		ctx->eth_ip_hdr_size = skb_transport_offset(skb);
847
-		ctx->l4_hdr_size = tcp_hdrlen(skb);
848
-		ctx->copy_size = ctx->eth_ip_hdr_size + ctx->l4_hdr_size;
847
+		if (VMXNET3_VERSION_GE_4(adapter) && skb->encapsulation) {
848
+			ctx->l4_offset = skb_inner_transport_offset(skb);
849
+			ctx->l4_hdr_size = inner_tcp_hdrlen(skb);
850
+			ctx->copy_size = ctx->l4_offset + ctx->l4_hdr_size;
851
+		} else {
852
+			ctx->l4_offset = skb_transport_offset(skb);
853
+			ctx->l4_hdr_size = tcp_hdrlen(skb);
854
+			ctx->copy_size = ctx->l4_offset + ctx->l4_hdr_size;
855
+		}
849856 	} else {
850857 		if (skb->ip_summed == CHECKSUM_PARTIAL) {
851
-			ctx->eth_ip_hdr_size = skb_checksum_start_offset(skb);
858
+			/* For encap packets, skb_checksum_start_offset refers
859
+			 * to inner L4 offset. Thus, below works for encap as
860
+			 * well as non-encap case
861
+			 */
862
+			ctx->l4_offset = skb_checksum_start_offset(skb);
852863 
853
-			if (ctx->ipv4) {
854
-				const struct iphdr *iph = ip_hdr(skb);
864
+			if (VMXNET3_VERSION_GE_4(adapter) &&
865
+			    skb->encapsulation) {
866
+				struct iphdr *iph = inner_ip_hdr(skb);
855867 
856
-				protocol = iph->protocol;
857
-			} else if (ctx->ipv6) {
858
-				const struct ipv6hdr *ipv6h = ipv6_hdr(skb);
868
+				if (iph->version == 4) {
869
+					protocol = iph->protocol;
870
+				} else {
871
+					const struct ipv6hdr *ipv6h;
859872 
860
-				protocol = ipv6h->nexthdr;
873
+					ipv6h = inner_ipv6_hdr(skb);
874
+					protocol = ipv6h->nexthdr;
875
+				}
876
+			} else {
877
+				if (ctx->ipv4) {
878
+					const struct iphdr *iph = ip_hdr(skb);
879
+
880
+					protocol = iph->protocol;
881
+				} else if (ctx->ipv6) {
882
+					const struct ipv6hdr *ipv6h;
883
+
884
+					ipv6h = ipv6_hdr(skb);
885
+					protocol = ipv6h->nexthdr;
886
+				}
861887 			}
862888 
863889 			switch (protocol) {
864890 			case IPPROTO_TCP:
865
-				ctx->l4_hdr_size = tcp_hdrlen(skb);
891
+				ctx->l4_hdr_size = skb->encapsulation ? inner_tcp_hdrlen(skb) :
892
+						   tcp_hdrlen(skb);
866893 				break;
867894 			case IPPROTO_UDP:
868895 				ctx->l4_hdr_size = sizeof(struct udphdr);
....@@ -872,10 +899,10 @@
872899 				break;
873900 			}
874901 
875
-			ctx->copy_size = min(ctx->eth_ip_hdr_size +
902
+			ctx->copy_size = min(ctx->l4_offset +
876903 					 ctx->l4_hdr_size, skb->len);
877904 		} else {
878
-			ctx->eth_ip_hdr_size = 0;
905
+			ctx->l4_offset = 0;
879906 			ctx->l4_hdr_size = 0;
880907 			/* copy as much as allowed */
881908 			ctx->copy_size = min_t(unsigned int,
....@@ -931,6 +958,25 @@
931958 
932959 
933960 static void
961
+vmxnet3_prepare_inner_tso(struct sk_buff *skb,
962
+			  struct vmxnet3_tx_ctx *ctx)
963
+{
964
+	struct tcphdr *tcph = inner_tcp_hdr(skb);
965
+	struct iphdr *iph = inner_ip_hdr(skb);
966
+
967
+	if (iph->version == 4) {
968
+		iph->check = 0;
969
+		tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr, 0,
970
+						 IPPROTO_TCP, 0);
971
+	} else {
972
+		struct ipv6hdr *iph = inner_ipv6_hdr(skb);
973
+
974
+		tcph->check = ~csum_ipv6_magic(&iph->saddr, &iph->daddr, 0,
975
+					       IPPROTO_TCP, 0);
976
+	}
977
+}
978
+
979
+static void
934980 vmxnet3_prepare_tso(struct sk_buff *skb,
935981 		    struct vmxnet3_tx_ctx *ctx)
936982 {
....@@ -943,10 +989,7 @@
943989 		tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr, 0,
944990 						 IPPROTO_TCP, 0);
945991 	} else if (ctx->ipv6) {
946
-		struct ipv6hdr *iph = ipv6_hdr(skb);
947
-
948
-		tcph->check = ~csum_ipv6_magic(&iph->saddr, &iph->daddr, 0,
949
-					       IPPROTO_TCP, 0);
992
+		tcp_v6_gso_csum_prep(skb);
950993 	}
951994 }
952995 
....@@ -956,7 +999,7 @@
956999 	int i;
9571000 
9581001 	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
959
-		const struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i];
1002
+		const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
9601003 
9611004 		count += VMXNET3_TXD_NEEDED(skb_frag_size(frag));
9621005 	}
....@@ -1007,7 +1050,11 @@
10071050 			}
10081051 			tq->stats.copy_skb_header++;
10091052 		}
1010
-		vmxnet3_prepare_tso(skb, &ctx);
1053
+		if (skb->encapsulation) {
1054
+			vmxnet3_prepare_inner_tso(skb, &ctx);
1055
+		} else {
1056
+			vmxnet3_prepare_tso(skb, &ctx);
1057
+		}
10111058 	} else {
10121059 		if (unlikely(count > VMXNET3_MAX_TXD_PER_PKT)) {
10131060 
....@@ -1030,14 +1077,14 @@
10301077 		BUG_ON(ret <= 0 && ctx.copy_size != 0);
10311078 		/* hdrs parsed, check against other limits */
10321079 		if (ctx.mss) {
1033
-			if (unlikely(ctx.eth_ip_hdr_size + ctx.l4_hdr_size >
1080
+			if (unlikely(ctx.l4_offset + ctx.l4_hdr_size >
10341081 				     VMXNET3_MAX_TX_BUF_SIZE)) {
10351082 				tq->stats.drop_oversized_hdr++;
10361083 				goto drop_pkt;
10371084 			}
10381085 		} else {
10391086 			if (skb->ip_summed == CHECKSUM_PARTIAL) {
1040
-				if (unlikely(ctx.eth_ip_hdr_size +
1087
+				if (unlikely(ctx.l4_offset +
10411088 					     skb->csum_offset >
10421089 					     VMXNET3_MAX_CSUM_OFFSET)) {
10431090 					tq->stats.drop_oversized_hdr++;
....@@ -1084,16 +1131,33 @@
10841131 #endif
10851132 	tx_num_deferred = le32_to_cpu(tq->shared->txNumDeferred);
10861133 	if (ctx.mss) {
1087
-		gdesc->txd.hlen = ctx.eth_ip_hdr_size + ctx.l4_hdr_size;
1088
-		gdesc->txd.om = VMXNET3_OM_TSO;
1089
-		gdesc->txd.msscof = ctx.mss;
1134
+		if (VMXNET3_VERSION_GE_4(adapter) && skb->encapsulation) {
1135
+			gdesc->txd.hlen = ctx.l4_offset + ctx.l4_hdr_size;
1136
+			gdesc->txd.om = VMXNET3_OM_ENCAP;
1137
+			gdesc->txd.msscof = ctx.mss;
1138
+
1139
+			if (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_TUNNEL_CSUM)
1140
+				gdesc->txd.oco = 1;
1141
+		} else {
1142
+			gdesc->txd.hlen = ctx.l4_offset + ctx.l4_hdr_size;
1143
+			gdesc->txd.om = VMXNET3_OM_TSO;
1144
+			gdesc->txd.msscof = ctx.mss;
1145
+		}
10901146 		num_pkts = (skb->len - gdesc->txd.hlen + ctx.mss - 1) / ctx.mss;
10911147 	} else {
10921148 		if (skb->ip_summed == CHECKSUM_PARTIAL) {
1093
-			gdesc->txd.hlen = ctx.eth_ip_hdr_size;
1094
-			gdesc->txd.om = VMXNET3_OM_CSUM;
1095
-			gdesc->txd.msscof = ctx.eth_ip_hdr_size +
1096
-					    skb->csum_offset;
1149
+			if (VMXNET3_VERSION_GE_4(adapter) &&
1150
+			    skb->encapsulation) {
1151
+				gdesc->txd.hlen = ctx.l4_offset +
1152
+						  ctx.l4_hdr_size;
1153
+				gdesc->txd.om = VMXNET3_OM_ENCAP;
1154
+				gdesc->txd.msscof = 0;		/* Reserved */
1155
+			} else {
1156
+				gdesc->txd.hlen = ctx.l4_offset;
1157
+				gdesc->txd.om = VMXNET3_OM_CSUM;
1158
+				gdesc->txd.msscof = ctx.l4_offset +
1159
+						    skb->csum_offset;
1160
+			}
10971161 		} else {
10981162 			gdesc->txd.om = 0;
10991163 			gdesc->txd.msscof = 0;
....@@ -1172,13 +1236,21 @@
11721236 		    (le32_to_cpu(gdesc->dword[3]) &
11731237 		     VMXNET3_RCD_CSUM_OK) == VMXNET3_RCD_CSUM_OK) {
11741238 			skb->ip_summed = CHECKSUM_UNNECESSARY;
1175
-			BUG_ON(!(gdesc->rcd.tcp || gdesc->rcd.udp));
1176
-			BUG_ON(gdesc->rcd.frg);
1239
+			WARN_ON_ONCE(!(gdesc->rcd.tcp || gdesc->rcd.udp) &&
1240
+				     !(le32_to_cpu(gdesc->dword[0]) &
1241
+				     (1UL << VMXNET3_RCD_HDR_INNER_SHIFT)));
1242
+			WARN_ON_ONCE(gdesc->rcd.frg &&
1243
+				     !(le32_to_cpu(gdesc->dword[0]) &
1244
+				     (1UL << VMXNET3_RCD_HDR_INNER_SHIFT)));
11771245 		} else if (gdesc->rcd.v6 && (le32_to_cpu(gdesc->dword[3]) &
11781246 					     (1 << VMXNET3_RCD_TUC_SHIFT))) {
11791247 			skb->ip_summed = CHECKSUM_UNNECESSARY;
1180
-			BUG_ON(!(gdesc->rcd.tcp || gdesc->rcd.udp));
1181
-			BUG_ON(gdesc->rcd.frg);
1248
+			WARN_ON_ONCE(!(gdesc->rcd.tcp || gdesc->rcd.udp) &&
1249
+				     !(le32_to_cpu(gdesc->dword[0]) &
1250
+				     (1UL << VMXNET3_RCD_HDR_INNER_SHIFT)));
1251
+			WARN_ON_ONCE(gdesc->rcd.frg &&
1252
+				     !(le32_to_cpu(gdesc->dword[0]) &
1253
+				     (1UL << VMXNET3_RCD_HDR_INNER_SHIFT)));
11821254 		} else {
11831255 			if (gdesc->rcd.csum) {
11841256 				skb->csum = htons(gdesc->rcd.csum);
....@@ -1284,6 +1356,7 @@
12841356 	};
12851357 	u32 num_pkts = 0;
12861358 	bool skip_page_frags = false;
1359
+	bool encap_lro = false;
12871360 	struct Vmxnet3_RxCompDesc *rcd;
12881361 	struct vmxnet3_rx_ctx *ctx = &rq->rx_ctx;
12891362 	u16 segCnt = 0, mss = 0;
....@@ -1424,13 +1497,18 @@
14241497 			if (VMXNET3_VERSION_GE_2(adapter) &&
14251498 			    rcd->type == VMXNET3_CDTYPE_RXCOMP_LRO) {
14261499 				struct Vmxnet3_RxCompDescExt *rcdlro;
1500
+				union Vmxnet3_GenericDesc *gdesc;
1501
+
14271502 				rcdlro = (struct Vmxnet3_RxCompDescExt *)rcd;
1503
+				gdesc = (union Vmxnet3_GenericDesc *)rcd;
14281504 
14291505 				segCnt = rcdlro->segCnt;
14301506 				WARN_ON_ONCE(segCnt == 0);
14311507 				mss = rcdlro->mss;
14321508 				if (unlikely(segCnt <= 1))
14331509 					segCnt = 0;
1510
+				encap_lro = (le32_to_cpu(gdesc->dword[0]) &
1511
+					(1UL << VMXNET3_RCD_HDR_INNER_SHIFT));
14341512 			} else {
14351513 				segCnt = 0;
14361514 			}
....@@ -1498,7 +1576,7 @@
14981576 			vmxnet3_rx_csum(adapter, skb,
14991577 					(union Vmxnet3_GenericDesc *)rcd);
15001578 			skb->protocol = eth_type_trans(skb, adapter->netdev);
1501
-			if (!rcd->tcp ||
1579
+			if ((!rcd->tcp && !encap_lro) ||
15021580 			    !(adapter->netdev->features & NETIF_F_LRO))
15031581 				goto not_lro;
15041582 
....@@ -1507,7 +1585,7 @@
15071585 					SKB_GSO_TCPV4 : SKB_GSO_TCPV6;
15081586 				skb_shinfo(skb)->gso_size = mss;
15091587 				skb_shinfo(skb)->gso_segs = segCnt;
1510
-			} else if (segCnt != 0 || skb->len > mtu) {
1588
+			} else if ((segCnt != 0 || skb->len > mtu) && !encap_lro) {
15111589 				u32 hlen;
15121590 
15131591 				hlen = vmxnet3_get_hdr_len(adapter, skb,
....@@ -1536,6 +1614,7 @@
15361614 				napi_gro_receive(&rq->napi, skb);
15371615 
15381616 			ctx->skb = NULL;
1617
+			encap_lro = false;
15391618 			num_pkts++;
15401619 		}
15411620 
....@@ -1583,6 +1662,10 @@
15831662 {
15841663 	u32 i, ring_idx;
15851664 	struct Vmxnet3_RxDesc *rxd;
1665
+
1666
+	/* ring has already been cleaned up */
1667
+	if (!rq->rx_ring[0].base)
1668
+		return;
15861669 
15871670 	for (ring_idx = 0; ring_idx < 2; ring_idx++) {
15881671 		for (i = 0; i < rq->rx_ring[ring_idx].size; i++) {
....@@ -1815,8 +1898,8 @@
18151898 
18161899 	sz = sizeof(struct vmxnet3_rx_buf_info) * (rq->rx_ring[0].size +
18171900 						   rq->rx_ring[1].size);
1818
-	bi = dma_zalloc_coherent(&adapter->pdev->dev, sz, &rq->buf_info_pa,
1819
-				 GFP_KERNEL);
1901
+	bi = dma_alloc_coherent(&adapter->pdev->dev, sz, &rq->buf_info_pa,
1902
+				GFP_KERNEL);
18201903 	if (!bi)
18211904 		goto err;
18221905 
....@@ -2433,6 +2516,10 @@
24332516 	if (adapter->netdev->features & NETIF_F_HW_VLAN_CTAG_RX)
24342517 		devRead->misc.uptFeatures |= UPT1_F_RXVLAN;
24352518 
2519
+	if (adapter->netdev->features & (NETIF_F_GSO_UDP_TUNNEL |
2520
+					 NETIF_F_GSO_UDP_TUNNEL_CSUM))
2521
+		devRead->misc.uptFeatures |= UPT1_F_RXINNEROFLD;
2522
+
24362523 	devRead->misc.mtu = cpu_to_le32(adapter->netdev->mtu);
24372524 	devRead->misc.queueDescPA = cpu_to_le64(adapter->queue_desc_pa);
24382525 	devRead->misc.queueDescLen = cpu_to_le32(
....@@ -2558,6 +2645,39 @@
25582645 	spin_unlock_irqrestore(&adapter->cmd_lock, flags);
25592646 }
25602647 
2648
+static void
2649
+vmxnet3_init_rssfields(struct vmxnet3_adapter *adapter)
2650
+{
2651
+	struct Vmxnet3_DriverShared *shared = adapter->shared;
2652
+	union Vmxnet3_CmdInfo *cmdInfo = &shared->cu.cmdInfo;
2653
+	unsigned long flags;
2654
+
2655
+	if (!VMXNET3_VERSION_GE_4(adapter))
2656
+		return;
2657
+
2658
+	spin_lock_irqsave(&adapter->cmd_lock, flags);
2659
+
2660
+	if (adapter->default_rss_fields) {
2661
+		VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
2662
+				       VMXNET3_CMD_GET_RSS_FIELDS);
2663
+		adapter->rss_fields =
2664
+			VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD);
2665
+	} else {
2666
+		cmdInfo->setRssFields = adapter->rss_fields;
2667
+		VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
2668
+				       VMXNET3_CMD_SET_RSS_FIELDS);
2669
+		/* Not all requested RSS may get applied, so get and
2670
+		 * cache what was actually applied.
2671
+		 */
2672
+		VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
2673
+				       VMXNET3_CMD_GET_RSS_FIELDS);
2674
+		adapter->rss_fields =
2675
+			VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD);
2676
+	}
2677
+
2678
+	spin_unlock_irqrestore(&adapter->cmd_lock, flags);
2679
+}
2680
+
25612681 int
25622682 vmxnet3_activate_dev(struct vmxnet3_adapter *adapter)
25632683 {
....@@ -2607,6 +2727,7 @@
26072727 	}
26082728 
26092729 	vmxnet3_init_coalesce(adapter);
2730
+	vmxnet3_init_rssfields(adapter);
26102731 
26112732 	for (i = 0; i < adapter->num_rx_queues; i++) {
26122733 		VMXNET3_WRITE_BAR0_REG(adapter,
....@@ -3043,6 +3164,18 @@
30433164 		NETIF_F_HW_CSUM | NETIF_F_HW_VLAN_CTAG_TX |
30443165 		NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_TSO | NETIF_F_TSO6 |
30453166 		NETIF_F_LRO;
3167
+
3168
+	if (VMXNET3_VERSION_GE_4(adapter)) {
3169
+		netdev->hw_features |= NETIF_F_GSO_UDP_TUNNEL |
3170
+				NETIF_F_GSO_UDP_TUNNEL_CSUM;
3171
+
3172
+		netdev->hw_enc_features = NETIF_F_SG | NETIF_F_RXCSUM |
3173
+			NETIF_F_HW_CSUM | NETIF_F_HW_VLAN_CTAG_TX |
3174
+			NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_TSO | NETIF_F_TSO6 |
3175
+			NETIF_F_LRO | NETIF_F_GSO_UDP_TUNNEL |
3176
+			NETIF_F_GSO_UDP_TUNNEL_CSUM;
3177
+	}
3178
+
30463179 	if (dma64)
30473180 		netdev->hw_features |= NETIF_F_HIGHDMA;
30483181 	netdev->vlan_features = netdev->hw_features &
....@@ -3199,7 +3332,7 @@
31993332 
32003333 
32013334 static void
3202
-vmxnet3_tx_timeout(struct net_device *netdev)
3335
+vmxnet3_tx_timeout(struct net_device *netdev, unsigned int txqueue)
32033336 {
32043337 	struct vmxnet3_adapter *adapter = netdev_priv(netdev);
32053338 	adapter->tx_timeout_count++;
....@@ -3247,7 +3380,9 @@
32473380 		.ndo_start_xmit = vmxnet3_xmit_frame,
32483381 		.ndo_set_mac_address = vmxnet3_set_mac_addr,
32493382 		.ndo_change_mtu = vmxnet3_change_mtu,
3383
+		.ndo_fix_features = vmxnet3_fix_features,
32503384 		.ndo_set_features = vmxnet3_set_features,
3385
+		.ndo_features_check = vmxnet3_features_check,
32513386 		.ndo_get_stats64 = vmxnet3_get_stats64,
32523387 		.ndo_tx_timeout = vmxnet3_tx_timeout,
32533388 		.ndo_set_rx_mode = vmxnet3_set_mc,
....@@ -3385,7 +3520,12 @@
33853520 		goto err_alloc_pci;
33863521 
33873522 	ver = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_VRRS);
3388
-	if (ver & (1 << VMXNET3_REV_3)) {
3523
+	if (ver & (1 << VMXNET3_REV_4)) {
3524
+		VMXNET3_WRITE_BAR1_REG(adapter,
3525
+				       VMXNET3_REG_VRRS,
3526
+				       1 << VMXNET3_REV_4);
3527
+		adapter->version = VMXNET3_REV_4 + 1;
3528
+	} else if (ver & (1 << VMXNET3_REV_3)) {
33893529 		VMXNET3_WRITE_BAR1_REG(adapter,
33903530 				       VMXNET3_REG_VRRS,
33913531 				       1 << VMXNET3_REV_3);
....@@ -3429,9 +3569,13 @@
34293569 			err = -ENOMEM;
34303570 			goto err_ver;
34313571 		}
3432
-		memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf));
34333572 		adapter->coal_conf->coalMode = VMXNET3_COALESCE_DISABLED;
34343573 		adapter->default_coal_mode = true;
3574
+	}
3575
+
3576
+	if (VMXNET3_VERSION_GE_4(adapter)) {
3577
+		adapter->default_rss_fields = true;
3578
+		adapter->rss_fields = VMXNET3_RSS_FIELDS_DEFAULT;
34353579 	}
34363580 
34373581 	SET_NETDEV_DEV(netdev, &pdev->dev);
....@@ -3650,13 +3794,19 @@
36503794 	}
36513795 
36523796 	if (adapter->wol & WAKE_ARP) {
3653
-		in_dev = in_dev_get(netdev);
3654
-		if (!in_dev)
3655
-			goto skip_arp;
3797
+		rcu_read_lock();
36563798 
3657
-		ifa = (struct in_ifaddr *)in_dev->ifa_list;
3658
-		if (!ifa)
3799
+		in_dev = __in_dev_get_rcu(netdev);
3800
+		if (!in_dev) {
3801
+			rcu_read_unlock();
36593802 			goto skip_arp;
3803
+		}
3804
+
3805
+		ifa = rcu_dereference(in_dev->ifa_list);
3806
+		if (!ifa) {
3807
+			rcu_read_unlock();
3808
+			goto skip_arp;
3809
+		}
36603810 
36613811 		pmConf->filters[i].patternSize = ETH_HLEN + /* Ethernet header*/
36623812 			sizeof(struct arphdr) +		/* ARP header */
....@@ -3676,7 +3826,9 @@
36763826 
36773827 		/* The Unicast IPv4 address in 'tip' field. */
36783828 		arpreq += 2 * ETH_ALEN + sizeof(u32);
3679
-		*(u32 *)arpreq = ifa->ifa_address;
3829
+		*(__be32 *)arpreq = ifa->ifa_address;
3830
+
3831
+		rcu_read_unlock();
36803832 
36813833 		/* The mask for the relevant bits. */
36823834 		pmConf->filters[i].mask[0] = 0x00;
....@@ -3685,7 +3837,6 @@
36853837 		pmConf->filters[i].mask[3] = 0x00;
36863838 		pmConf->filters[i].mask[4] = 0xC0; /* IPv4 TIP */
36873839 		pmConf->filters[i].mask[5] = 0x03; /* IPv4 TIP */
3688
-		in_dev_put(in_dev);
36893840 
36903841 		pmConf->wakeUpEvents |= VMXNET3_PM_WAKEUP_FILTER;
36913842 		i++;