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2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc 
 kernel/drivers/net/hyperv/hyperv_net.h
....@@ -1,24 +1,12 @@
1
+/* SPDX-License-Identifier: GPL-2.0-only */
12 /*
23  *
34  * Copyright (c) 2011, Microsoft Corporation.
4
- *
5
- * This program is free software; you can redistribute it and/or modify it
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- * under the terms and conditions of the GNU General Public License,
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- * version 2, as published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope it will be useful, but WITHOUT
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- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
12
- * more details.
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- *
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- * You should have received a copy of the GNU General Public License along with
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- * this program; if not, see <http://www.gnu.org/licenses/>.
165  *
176  * Authors:
187  *   Haiyang Zhang <haiyangz@microsoft.com>
198  *   Hank Janssen  <hjanssen@microsoft.com>
209  *   K. Y. Srinivasan <kys@microsoft.com>
21
- *
2210  */
2311 
2412 #ifndef _HYPERV_NET_H
....@@ -154,6 +142,8 @@
154142 	u32  send_section_size;
155143 	u32  recv_section_size;
156144 
145
+	struct bpf_prog *bprog;
146
+
157147 	u8 rss_key[NETVSC_HASH_KEYLEN];
158148 };
159149 
....@@ -186,7 +176,9 @@
186176 
187177 /* Interface */
188178 struct rndis_message;
179
+struct ndis_offload_params;
189180 struct netvsc_device;
181
+struct netvsc_channel;
190182 struct net_device_context;
191183 
192184 extern u32 netvsc_ring_bytes;
....@@ -199,17 +191,25 @@
199191 		struct hv_netvsc_packet *packet,
200192 		struct rndis_message *rndis_msg,
201193 		struct hv_page_buffer *page_buffer,
202
-		struct sk_buff *skb);
194
+		struct sk_buff *skb,
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+		bool xdp_tx);
203196 void netvsc_linkstatus_callback(struct net_device *net,
204197 				struct rndis_message *resp);
205198 int netvsc_recv_callback(struct net_device *net,
206199 			 struct netvsc_device *nvdev,
207
-			 struct vmbus_channel *channel,
208
-			 void  *data, u32 len,
209
-			 const struct ndis_tcp_ip_checksum_info *csum_info,
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-			 const struct ndis_pkt_8021q_info *vlan);
200
+			 struct netvsc_channel *nvchan);
211201 void netvsc_channel_cb(void *context);
212202 int netvsc_poll(struct napi_struct *napi, int budget);
203
+
204
+u32 netvsc_run_xdp(struct net_device *ndev, struct netvsc_channel *nvchan,
205
+		   struct xdp_buff *xdp);
206
+unsigned int netvsc_xdp_fraglen(unsigned int len);
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+struct bpf_prog *netvsc_xdp_get(struct netvsc_device *nvdev);
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+int netvsc_xdp_set(struct net_device *dev, struct bpf_prog *prog,
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+		   struct netlink_ext_ack *extack,
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+		   struct netvsc_device *nvdev);
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+int netvsc_vf_setxdp(struct net_device *vf_netdev, struct bpf_prog *prog);
212
+int netvsc_bpf(struct net_device *dev, struct netdev_bpf *bpf);
213213 
214214 int rndis_set_subchannel(struct net_device *ndev,
215215 			 struct netvsc_device *nvdev,
....@@ -223,9 +223,12 @@
223223 				struct netvsc_device *nvdev);
224224 int rndis_filter_set_rss_param(struct rndis_device *rdev,
225225 			       const u8 *key);
226
+int rndis_filter_set_offload_params(struct net_device *ndev,
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+				    struct netvsc_device *nvdev,
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+				    struct ndis_offload_params *req_offloads);
226229 int rndis_filter_receive(struct net_device *ndev,
227230 			 struct netvsc_device *net_dev,
228
-			 struct vmbus_channel *channel,
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+			 struct netvsc_channel *nvchan,
229232 			 void *data, u32 buflen);
230233 
231234 int rndis_filter_set_device_mac(struct netvsc_device *ndev,
....@@ -527,6 +530,8 @@
527530 			u64 ieee8021q:1;
528531 			u64 correlation_id:1;
529532 			u64 teaming:1;
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+			u64 vsubnetid:1;
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+			u64 rsc:1;
530535 		};
531536 	};
532537 } __packed;
....@@ -830,7 +835,8 @@
830835 
831836 #define NETVSC_SUPPORTED_HW_FEATURES (NETIF_F_RXCSUM | NETIF_F_IP_CSUM | \
832837 				      NETIF_F_TSO | NETIF_F_IPV6_CSUM | \
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-				      NETIF_F_TSO6)
838
+				      NETIF_F_TSO6 | NETIF_F_LRO | \
839
+				      NETIF_F_SG | NETIF_F_RXHASH)
834840 
835841 #define VRSS_SEND_TAB_SIZE 16  /* must be power of 2 */
836842 #define VRSS_CHANNEL_MAX 64
....@@ -838,6 +844,12 @@
838844 
839845 #define RNDIS_MAX_PKT_DEFAULT 8
840846 #define RNDIS_PKT_ALIGN_DEFAULT 8
847
+
848
+#define NETVSC_XDP_HDRM 256
849
+
850
+#define NETVSC_XFER_HEADER_SIZE(rng_cnt) \
851
+		(offsetof(struct vmtransfer_page_packet_header, ranges) + \
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+		(rng_cnt) * sizeof(struct vmtransfer_page_range))
841853 
842854 struct multi_send_data {
843855 	struct sk_buff *skb; /* skb containing the pkt */
....@@ -856,11 +868,25 @@
856868 	u32 next;	/* next entry for writing */
857869 };
858870 
871
+#define NVSP_RSC_MAX 562 /* Max #RSC frags in a vmbus xfer page pkt */
872
+
873
+struct nvsc_rsc {
874
+	const struct ndis_pkt_8021q_info *vlan;
875
+	const struct ndis_tcp_ip_checksum_info *csum_info;
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+	const u32 *hash_info;
877
+	u8 is_last; /* last RNDIS msg in a vmtransfer_page */
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+	u32 cnt; /* #fragments in an RSC packet */
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+	u32 pktlen; /* Full packet length */
880
+	void *data[NVSP_RSC_MAX];
881
+	u32 len[NVSP_RSC_MAX];
882
+};
883
+
859884 struct netvsc_stats {
860885 	u64 packets;
861886 	u64 bytes;
862887 	u64 broadcast;
863888 	u64 multicast;
889
+	u64 xdp_drop;
864890 	struct u64_stats_sync syncp;
865891 };
866892 
....@@ -875,6 +901,7 @@
875901 	unsigned long rx_no_memory;
876902 	unsigned long stop_queue;
877903 	unsigned long wake_queue;
904
+	unsigned long vlan_error;
878905 };
879906 
880907 struct netvsc_ethtool_pcpu_stats {
....@@ -950,6 +977,13 @@
950977 	u32 vf_alloc;
951978 	/* Serial number of the VF to team with */
952979 	u32 vf_serial;
980
+	/* completion variable to confirm vf association */
981
+	struct completion vf_add;
982
+	/* Is the current data path through the VF NIC? */
983
+	bool  data_path_is_vf;
984
+
985
+	/* Used to temporarily save the config info across hibernation */
986
+	struct netvsc_device_info *saved_netvsc_dev_info;
953987 };
954988 
955989 /* Per channel data */
....@@ -961,6 +995,10 @@
961995 	struct multi_send_data msd;
962996 	struct multi_recv_comp mrc;
963997 	atomic_t queue_sends;
998
+	struct nvsc_rsc rsc;
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+
1000
+	struct bpf_prog __rcu *bpf_prog;
1001
+	struct xdp_rxq_info xdp_rxq;
9641002 
9651003 	struct netvsc_stats tx_stats;
9661004 	struct netvsc_stats rx_stats;
....@@ -1143,7 +1181,8 @@
11431181 /* Packet extension field contents associated with a Data message. */
11441182 struct rndis_per_packet_info {
11451183 	u32 size;
1146
-	u32 type;
1184
+	u32 type:31;
1185
+	u32 internal:1;
11471186 	u32 ppi_offset;
11481187 };
11491188 
....@@ -1164,6 +1203,25 @@
11641203 	MAX_PER_PKT_INFO
11651204 };
11661205 
1206
+enum rndis_per_pkt_info_interal_type {
1207
+	RNDIS_PKTINFO_ID = 1,
1208
+	/* Add more members here */
1209
+
1210
+	RNDIS_PKTINFO_MAX
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+};
1212
+
1213
+#define RNDIS_PKTINFO_SUBALLOC BIT(0)
1214
+#define RNDIS_PKTINFO_1ST_FRAG BIT(1)
1215
+#define RNDIS_PKTINFO_LAST_FRAG BIT(2)
1216
+
1217
+#define RNDIS_PKTINFO_ID_V1 1
1218
+
1219
+struct rndis_pktinfo_id {
1220
+	u8 ver;
1221
+	u8 flag;
1222
+	u16 pkt_id;
1223
+};
1224
+
11671225 struct ndis_pkt_8021q_info {
11681226 	union {
11691227 		struct {