Merge branch 'hns3-next'

Salil Mehta says:

====================
Adds support of RSS to HNS3 Driver for Rev 2(=0x21) H/W

This patch-set mainly adds new additions related to RSS for the new
hardware Revision 0x21. It also adds support to use RSS hash value
provided by the hardware along with descriptor.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/hisilicon/hns3/hnae3.h

@@ -479,6 +479,7 @@ struct hnae3_knic_private_info {
 	const struct hnae3_dcb_ops *dcb_ops;
 
 	u16 int_rl_setting;
+	enum pkt_hash_types rss_type;
 };
 
 struct hnae3_roce_private_info {

drivers/net/ethernet/hisilicon/hns3/hns3_enet.c

@@ -2230,6 +2230,21 @@ static bool hns3_parse_vlan_tag(struct hns3_enet_ring *ring,
 	}
 }
 
+static void hns3_set_rx_skb_rss_type(struct hns3_enet_ring *ring,
+				     struct sk_buff *skb)
+{
+	struct hns3_desc *desc = &ring->desc[ring->next_to_clean];
+	struct hnae3_handle *handle = ring->tqp->handle;
+	enum pkt_hash_types rss_type;
+
+	if (le32_to_cpu(desc->rx.rss_hash))
+		rss_type = handle->kinfo.rss_type;
+	else
+		rss_type = PKT_HASH_TYPE_NONE;
+
+	skb_set_hash(skb, le32_to_cpu(desc->rx.rss_hash), rss_type);
+}
+
 static int hns3_handle_rx_bd(struct hns3_enet_ring *ring,
 			     struct sk_buff **out_skb, int *out_bnum)
 {
@@ -2371,6 +2386,8 @@ static int hns3_handle_rx_bd(struct hns3_enet_ring *ring,
 	ring->tqp_vector->rx_group.total_bytes += skb->len;
 
 	hns3_rx_checksum(ring, skb, desc);
+	hns3_set_rx_skb_rss_type(ring, skb);
+
 	return 0;
 }
 

drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c

@@ -678,12 +678,13 @@ static int hns3_set_rss(struct net_device *netdev, const u32 *indir,
 	if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->set_rss)
 		return -EOPNOTSUPP;
 
-	/* currently we only support Toeplitz hash */
-	if ((hfunc != ETH_RSS_HASH_NO_CHANGE) && (hfunc != ETH_RSS_HASH_TOP)) {
-		netdev_err(netdev,
-			   "hash func not supported (only Toeplitz hash)\n");
+	if ((h->pdev->revision == 0x20 &&
+	     hfunc != ETH_RSS_HASH_TOP) || (hfunc != ETH_RSS_HASH_NO_CHANGE &&
+	     hfunc != ETH_RSS_HASH_TOP && hfunc != ETH_RSS_HASH_XOR)) {
+		netdev_err(netdev, "hash func not supported\n");
 		return -EOPNOTSUPP;
 	}
+
 	if (!indir) {
 		netdev_err(netdev,
 			   "set rss failed for indir is empty\n");
@@ -1077,6 +1078,7 @@ static const struct ethtool_ops hns3vf_ethtool_ops = {
 	.get_ethtool_stats = hns3_get_stats,
 	.get_sset_count = hns3_get_sset_count,
 	.get_rxnfc = hns3_get_rxnfc,
+	.set_rxnfc = hns3_set_rxnfc,
 	.get_rxfh_key_size = hns3_get_rss_key_size,
 	.get_rxfh_indir_size = hns3_get_rss_indir_size,
 	.get_rxfh = hns3_get_rss,

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c

@@ -2773,6 +2773,22 @@ static int hclge_set_rss_tc_mode(struct hclge_dev *hdev, u16 *tc_valid,
 	return ret;
 }
 
+static void hclge_get_rss_type(struct hclge_vport *vport)
+{
+	if (vport->rss_tuple_sets.ipv4_tcp_en ||
+	    vport->rss_tuple_sets.ipv4_udp_en ||
+	    vport->rss_tuple_sets.ipv4_sctp_en ||
+	    vport->rss_tuple_sets.ipv6_tcp_en ||
+	    vport->rss_tuple_sets.ipv6_udp_en ||
+	    vport->rss_tuple_sets.ipv6_sctp_en)
+		vport->nic.kinfo.rss_type = PKT_HASH_TYPE_L4;
+	else if (vport->rss_tuple_sets.ipv4_fragment_en ||
+		 vport->rss_tuple_sets.ipv6_fragment_en)
+		vport->nic.kinfo.rss_type = PKT_HASH_TYPE_L3;
+	else
+		vport->nic.kinfo.rss_type = PKT_HASH_TYPE_NONE;
+}
+
 static int hclge_set_rss_input_tuple(struct hclge_dev *hdev)
 {
 	struct hclge_rss_input_tuple_cmd *req;
@@ -2792,6 +2808,7 @@ static int hclge_set_rss_input_tuple(struct hclge_dev *hdev)
 	req->ipv6_udp_en = hdev->vport[0].rss_tuple_sets.ipv6_udp_en;
 	req->ipv6_sctp_en = hdev->vport[0].rss_tuple_sets.ipv6_sctp_en;
 	req->ipv6_fragment_en = hdev->vport[0].rss_tuple_sets.ipv6_fragment_en;
+	hclge_get_rss_type(&hdev->vport[0]);
 	ret = hclge_cmd_send(&hdev->hw, &desc, 1);
 	if (ret)
 		dev_err(&hdev->pdev->dev,
@@ -2806,8 +2823,19 @@ static int hclge_get_rss(struct hnae3_handle *handle, u32 *indir,
 	int i;
 
 	/* Get hash algorithm */
-	if (hfunc)
-		*hfunc = vport->rss_algo;
+	if (hfunc) {
+		switch (vport->rss_algo) {
+		case HCLGE_RSS_HASH_ALGO_TOEPLITZ:
+			*hfunc = ETH_RSS_HASH_TOP;
+			break;
+		case HCLGE_RSS_HASH_ALGO_SIMPLE:
+			*hfunc = ETH_RSS_HASH_XOR;
+			break;
+		default:
+			*hfunc = ETH_RSS_HASH_UNKNOWN;
+			break;
+		}
+	}
 
 	/* Get the RSS Key required by the user */
 	if (key)
@@ -2831,12 +2859,20 @@ static int hclge_set_rss(struct hnae3_handle *handle, const u32 *indir,
 
 	/* Set the RSS Hash Key if specififed by the user */
 	if (key) {
-
-		if (hfunc == ETH_RSS_HASH_TOP ||
-		    hfunc == ETH_RSS_HASH_NO_CHANGE)
+		switch (hfunc) {
+		case ETH_RSS_HASH_TOP:
 			hash_algo = HCLGE_RSS_HASH_ALGO_TOEPLITZ;
-		else
+			break;
+		case ETH_RSS_HASH_XOR:
+			hash_algo = HCLGE_RSS_HASH_ALGO_SIMPLE;
+			break;
+		case ETH_RSS_HASH_NO_CHANGE:
+			hash_algo = vport->rss_algo;
+			break;
+		default:
 			return -EINVAL;
+		}
+
 		ret = hclge_set_rss_algo_key(hdev, hash_algo, key);
 		if (ret)
 			return ret;
@@ -2954,6 +2990,7 @@ static int hclge_set_rss_tuple(struct hnae3_handle *handle,
 	vport->rss_tuple_sets.ipv6_udp_en = req->ipv6_udp_en;
 	vport->rss_tuple_sets.ipv6_sctp_en = req->ipv6_sctp_en;
 	vport->rss_tuple_sets.ipv6_fragment_en = req->ipv6_fragment_en;
+	hclge_get_rss_type(vport);
 	return 0;
 }
 

drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.h

@@ -89,6 +89,7 @@ enum hclgevf_opcode_type {
 	HCLGEVF_OPC_CFG_COM_TQP_QUEUE	= 0x0B20,
 	/* RSS cmd */
 	HCLGEVF_OPC_RSS_GENERIC_CONFIG	= 0x0D01,
+	HCLGEVF_OPC_RSS_INPUT_TUPLE     = 0x0D02,
 	HCLGEVF_OPC_RSS_INDIR_TABLE	= 0x0D07,
 	HCLGEVF_OPC_RSS_TC_MODE		= 0x0D08,
 	/* Mailbox cmd */
@@ -148,7 +149,8 @@ struct hclgevf_query_res_cmd {
 	__le16 rsv[7];
 };
 
-#define HCLGEVF_RSS_HASH_KEY_OFFSET	4
+#define HCLGEVF_RSS_DEFAULT_OUTPORT_B	4
+#define HCLGEVF_RSS_HASH_KEY_OFFSET_B	4
 #define HCLGEVF_RSS_HASH_KEY_NUM	16
 struct hclgevf_rss_config_cmd {
 	u8 hash_config;
@@ -159,11 +161,11 @@ struct hclgevf_rss_config_cmd {
 struct hclgevf_rss_input_tuple_cmd {
 	u8 ipv4_tcp_en;
 	u8 ipv4_udp_en;
-	u8 ipv4_stcp_en;
+	u8 ipv4_sctp_en;
 	u8 ipv4_fragment_en;
 	u8 ipv6_tcp_en;
 	u8 ipv6_udp_en;
-	u8 ipv6_stcp_en;
+	u8 ipv6_sctp_en;
 	u8 ipv6_fragment_en;
 	u8 rsv[16];
 };

drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h

@@ -46,6 +46,13 @@
 #define HCLGEVF_RSS_HASH_ALGO_MASK	0xf
 #define HCLGEVF_RSS_CFG_TBL_NUM \
 	(HCLGEVF_RSS_IND_TBL_SIZE / HCLGEVF_RSS_CFG_TBL_SIZE)
+#define HCLGEVF_RSS_INPUT_TUPLE_OTHER	GENMASK(3, 0)
+#define HCLGEVF_RSS_INPUT_TUPLE_SCTP	GENMASK(4, 0)
+#define HCLGEVF_D_PORT_BIT		BIT(0)
+#define HCLGEVF_S_PORT_BIT		BIT(1)
+#define HCLGEVF_D_IP_BIT		BIT(2)
+#define HCLGEVF_S_IP_BIT		BIT(3)
+#define HCLGEVF_V_TAG_BIT		BIT(4)
 
 /* states of hclgevf device & tasks */
 enum hclgevf_states {
@@ -106,12 +113,24 @@ struct hclgevf_cfg {
 	u32 numa_node_map;
 };
 
+struct hclgevf_rss_tuple_cfg {
+	u8 ipv4_tcp_en;
+	u8 ipv4_udp_en;
+	u8 ipv4_sctp_en;
+	u8 ipv4_fragment_en;
+	u8 ipv6_tcp_en;
+	u8 ipv6_udp_en;
+	u8 ipv6_sctp_en;
+	u8 ipv6_fragment_en;
+};
+
 struct hclgevf_rss_cfg {
 	u8  rss_hash_key[HCLGEVF_RSS_KEY_SIZE]; /* user configured hash keys */
 	u32 hash_algo;
 	u32 rss_size;
 	u8 hw_tc_map;
 	u8  rss_indirection_tbl[HCLGEVF_RSS_IND_TBL_SIZE]; /* shadow table */
+	struct hclgevf_rss_tuple_cfg rss_tuple_sets;
 };
 
 struct hclgevf_misc_vector {