idpf: add singleq start_xmit and napi poll

Add the start_xmit, TX and RX napi poll support for the single queue
model. Unlike split queue model, single queue uses same queue to post
buffer descriptors and completed descriptors.
Signed-off-by: Joshua Hay <joshua.a.hay@intel.com>
Co-developed-by: Alan Brady <alan.brady@intel.com>
Signed-off-by: Alan Brady <alan.brady@intel.com>
Co-developed-by: Madhu Chittim <madhu.chittim@intel.com>
Signed-off-by: Madhu Chittim <madhu.chittim@intel.com>
Co-developed-by: Phani Burra <phani.r.burra@intel.com>
Signed-off-by: Phani Burra <phani.r.burra@intel.com>
Reviewed-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Co-developed-by: Pavan Kumar Linga <pavan.kumar.linga@intel.com>
Signed-off-by: Pavan Kumar Linga <pavan.kumar.linga@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

drivers/net/ethernet/intel/idpf/idpf.h

@@ -14,6 +14,7 @@ struct idpf_vport_max_q;
 #include <linux/etherdevice.h>
 #include <linux/pci.h>
 #include <linux/bitfield.h>
+#include <linux/sctp.h>
 #include <net/gro.h>
 #include <linux/dim.h>
 
@@ -280,6 +281,7 @@ enum idpf_vport_flags {
  * @txq_grps: Array of TX queue groups
  * @txq_model: Split queue or single queue queuing model
  * @txqs: Used only in hotpath to get to the right queue very fast
+ * @crc_enable: Enable CRC insertion offload
  * @num_rxq: Number of allocated RX queues
  * @num_bufq: Number of allocated buffer queues
  * @rxq_desc_count: RX queue descriptor count. *MUST* have enough descriptors
@@ -326,6 +328,7 @@ struct idpf_vport {
 	struct idpf_txq_group *txq_grps;
 	u32 txq_model;
 	struct idpf_queue **txqs;
+	bool crc_enable;
 
 	u16 num_rxq;
 	u16 num_bufq;
@@ -534,6 +537,9 @@ struct idpf_vport_config {
  * @vc_state: Virtchnl message state
  * @vc_msg: Virtchnl message buffer
  * @dev_ops: See idpf_dev_ops
+ * @num_vfs: Number of allocated VFs through sysfs. PF does not directly talk
+ *	     to VFs but is used to initialize them
+ * @crc_enable: Enable CRC insertion offload
  * @req_tx_splitq: TX split or single queue model to request
  * @req_rx_splitq: RX split or single queue model to request
  * @vport_ctrl_lock: Lock to protect the vport control flow
@@ -587,6 +593,8 @@ struct idpf_adapter {
 	DECLARE_BITMAP(vc_state, IDPF_VC_NBITS);
 	char vc_msg[IDPF_CTLQ_MAX_BUF_LEN];
 	struct idpf_dev_ops dev_ops;
+	int num_vfs;
+	bool crc_enable;
 	bool req_tx_splitq;
 	bool req_rx_splitq;
 
@@ -848,5 +856,7 @@ int idpf_send_create_vport_msg(struct idpf_adapter *adapter,
 			       struct idpf_vport_max_q *max_q);
 int idpf_check_supported_desc_ids(struct idpf_vport *vport);
 int idpf_send_map_unmap_queue_vector_msg(struct idpf_vport *vport, bool map);
+int idpf_send_set_sriov_vfs_msg(struct idpf_adapter *adapter, u16 num_vfs);
+int idpf_sriov_configure(struct pci_dev *pdev, int num_vfs);
 
 #endif /* !_IDPF_H_ */

drivers/net/ethernet/intel/idpf/idpf_lan_txrx.h

@@ -64,6 +64,32 @@ enum idpf_rss_hash {
 #define IDPF_TXD_COMPLQ_QID_S		0
 #define IDPF_TXD_COMPLQ_QID_M		GENMASK_ULL(9, 0)
 
+/* For base mode TX descriptors */
+
+#define IDPF_TXD_CTX_QW0_TUNN_L4T_CS_S	23
+#define IDPF_TXD_CTX_QW0_TUNN_L4T_CS_M	BIT_ULL(IDPF_TXD_CTX_QW0_TUNN_L4T_CS_S)
+#define IDPF_TXD_CTX_QW0_TUNN_DECTTL_S	19
+#define IDPF_TXD_CTX_QW0_TUNN_DECTTL_M	\
+	(0xFULL << IDPF_TXD_CTX_QW0_TUNN_DECTTL_S)
+#define IDPF_TXD_CTX_QW0_TUNN_NATLEN_S	12
+#define IDPF_TXD_CTX_QW0_TUNN_NATLEN_M	\
+	(0X7FULL << IDPF_TXD_CTX_QW0_TUNN_NATLEN_S)
+#define IDPF_TXD_CTX_QW0_TUNN_EIP_NOINC_S	11
+#define IDPF_TXD_CTX_QW0_TUNN_EIP_NOINC_M    \
+	BIT_ULL(IDPF_TXD_CTX_QW0_TUNN_EIP_NOINC_S)
+#define IDPF_TXD_CTX_EIP_NOINC_IPID_CONST	\
+	IDPF_TXD_CTX_QW0_TUNN_EIP_NOINC_M
+#define IDPF_TXD_CTX_QW0_TUNN_NATT_S	        9
+#define IDPF_TXD_CTX_QW0_TUNN_NATT_M	(0x3ULL << IDPF_TXD_CTX_QW0_TUNN_NATT_S)
+#define IDPF_TXD_CTX_UDP_TUNNELING	BIT_ULL(IDPF_TXD_CTX_QW0_TUNN_NATT_S)
+#define IDPF_TXD_CTX_GRE_TUNNELING	(0x2ULL << IDPF_TXD_CTX_QW0_TUNN_NATT_S)
+#define IDPF_TXD_CTX_QW0_TUNN_EXT_IPLEN_S	2
+#define IDPF_TXD_CTX_QW0_TUNN_EXT_IPLEN_M	\
+	(0x3FULL << IDPF_TXD_CTX_QW0_TUNN_EXT_IPLEN_S)
+#define IDPF_TXD_CTX_QW0_TUNN_EXT_IP_S	0
+#define IDPF_TXD_CTX_QW0_TUNN_EXT_IP_M	\
+	(0x3ULL << IDPF_TXD_CTX_QW0_TUNN_EXT_IP_S)
+
 #define IDPF_TXD_CTX_QW1_MSS_S		50
 #define IDPF_TXD_CTX_QW1_MSS_M		GENMASK_ULL(63, 50)
 #define IDPF_TXD_CTX_QW1_TSO_LEN_S	30
@@ -112,6 +138,27 @@ enum idpf_tx_desc_dtype_value {
 	IDPF_TX_DESC_DTYPE_DESC_DONE			= 15,
 };
 
+enum idpf_tx_ctx_desc_cmd_bits {
+	IDPF_TX_CTX_DESC_TSO		= 0x01,
+	IDPF_TX_CTX_DESC_TSYN		= 0x02,
+	IDPF_TX_CTX_DESC_IL2TAG2	= 0x04,
+	IDPF_TX_CTX_DESC_RSVD		= 0x08,
+	IDPF_TX_CTX_DESC_SWTCH_NOTAG	= 0x00,
+	IDPF_TX_CTX_DESC_SWTCH_UPLINK	= 0x10,
+	IDPF_TX_CTX_DESC_SWTCH_LOCAL	= 0x20,
+	IDPF_TX_CTX_DESC_SWTCH_VSI	= 0x30,
+	IDPF_TX_CTX_DESC_FILT_AU_EN	= 0x40,
+	IDPF_TX_CTX_DESC_FILT_AU_EVICT	= 0x80,
+	IDPF_TX_CTX_DESC_RSVD1		= 0xF00
+};
+
+enum idpf_tx_desc_len_fields {
+	/* Note: These are predefined bit offsets */
+	IDPF_TX_DESC_LEN_MACLEN_S	= 0, /* 7 BITS */
+	IDPF_TX_DESC_LEN_IPLEN_S	= 7, /* 7 BITS */
+	IDPF_TX_DESC_LEN_L4_LEN_S	= 14 /* 4 BITS */
+};
+
 enum idpf_tx_base_desc_cmd_bits {
 	IDPF_TX_DESC_CMD_EOP			= BIT(0),
 	IDPF_TX_DESC_CMD_RS			= BIT(1),
@@ -148,6 +195,16 @@ struct idpf_splitq_tx_compl_desc {
 	u8 rsvd; /* Reserved */
 }; /* writeback used with completion queues */
 
+/* Context descriptors */
+struct idpf_base_tx_ctx_desc {
+	struct {
+		__le32 tunneling_params;
+		__le16 l2tag2;
+		__le16 rsvd1;
+	} qw0;
+	__le64 qw1; /* type_cmd_tlen_mss/rt_hint */
+};
+
 /* Common cmd field defines for all desc except Flex Flow Scheduler (0x0C) */
 enum idpf_tx_flex_desc_cmd_bits {
 	IDPF_TX_FLEX_DESC_CMD_EOP			= BIT(0),

drivers/net/ethernet/intel/idpf/idpf_lib.c

@@ -1565,4 +1565,5 @@ static const struct net_device_ops idpf_netdev_ops_splitq = {
 static const struct net_device_ops idpf_netdev_ops_singleq = {
 	.ndo_open = idpf_open,
 	.ndo_stop = idpf_stop,
+	.ndo_start_xmit = idpf_tx_singleq_start,
 };

drivers/net/ethernet/intel/idpf/idpf_main.c

@@ -133,6 +133,7 @@ static int idpf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		break;
 	case IDPF_DEV_ID_VF:
 		idpf_vf_dev_ops_init(adapter);
+		adapter->crc_enable = true;
 		break;
 	default:
 		err = -ENODEV;

drivers/net/ethernet/intel/idpf/idpf_txrx.c

@@ -1953,7 +1953,7 @@ void idpf_tx_splitq_build_flow_desc(union idpf_tx_flex_desc *desc,
  *
  * Returns 0 if stop is not needed
  */
-static int idpf_tx_maybe_stop_common(struct idpf_queue *tx_q, unsigned int size)
+int idpf_tx_maybe_stop_common(struct idpf_queue *tx_q, unsigned int size)
 {
 	struct netdev_queue *nq;
 
@@ -2017,8 +2017,8 @@ static int idpf_tx_maybe_stop_splitq(struct idpf_queue *tx_q,
  * to do a register write to update our queue status. We know this can only
  * mean tail here as HW should be owning head for TX.
  */
-static void idpf_tx_buf_hw_update(struct idpf_queue *tx_q, u32 val,
-				  bool xmit_more)
+void idpf_tx_buf_hw_update(struct idpf_queue *tx_q, u32 val,
+			   bool xmit_more)
 {
 	struct netdev_queue *nq;
 
@@ -2041,11 +2041,13 @@ static void idpf_tx_buf_hw_update(struct idpf_queue *tx_q, u32 val,
 
 /**
  * idpf_tx_desc_count_required - calculate number of Tx descriptors needed
+ * @txq: queue to send buffer on
  * @skb: send buffer
  *
  * Returns number of data descriptors needed for this skb.
  */
-static unsigned int idpf_tx_desc_count_required(struct sk_buff *skb)
+unsigned int idpf_tx_desc_count_required(struct idpf_queue *txq,
+					 struct sk_buff *skb)
 {
 	const struct skb_shared_info *shinfo;
 	unsigned int count = 0, i;
@@ -2071,6 +2073,16 @@ static unsigned int idpf_tx_desc_count_required(struct sk_buff *skb)
 			count++;
 	}
 
+	if (idpf_chk_linearize(skb, txq->tx_max_bufs, count)) {
+		if (__skb_linearize(skb))
+			return 0;
+
+		count = idpf_size_to_txd_count(skb->len);
+		u64_stats_update_begin(&txq->stats_sync);
+		u64_stats_inc(&txq->q_stats.tx.linearize);
+		u64_stats_update_end(&txq->stats_sync);
+	}
+
 	return count;
 }
 
@@ -2081,8 +2093,8 @@ static unsigned int idpf_tx_desc_count_required(struct sk_buff *skb)
  * @first: original first buffer info buffer for packet
  * @idx: starting point on ring to unwind
  */
-static void idpf_tx_dma_map_error(struct idpf_queue *txq, struct sk_buff *skb,
-				  struct idpf_tx_buf *first, u16 idx)
+void idpf_tx_dma_map_error(struct idpf_queue *txq, struct sk_buff *skb,
+			   struct idpf_tx_buf *first, u16 idx)
 {
 	u64_stats_update_begin(&txq->stats_sync);
 	u64_stats_inc(&txq->q_stats.tx.dma_map_errs);
@@ -2327,7 +2339,7 @@ static void idpf_tx_splitq_map(struct idpf_queue *tx_q,
  * Returns error (negative) if TSO was requested but cannot be applied to the
  * given skb, 0 if TSO does not apply to the given skb, or 1 otherwise.
  */
-static int idpf_tso(struct sk_buff *skb, struct idpf_tx_offload_params *off)
+int idpf_tso(struct sk_buff *skb, struct idpf_tx_offload_params *off)
 {
 	const struct skb_shared_info *shinfo = skb_shinfo(skb);
 	union {
@@ -2488,8 +2500,8 @@ static bool __idpf_chk_linearize(struct sk_buff *skb, unsigned int max_bufs)
  * E.g.: a packet with 7 fragments can require 9 DMA transactions; 1 for TSO
  * header, 1 for segment payload, and then 7 for the fragments.
  */
-static bool idpf_chk_linearize(struct sk_buff *skb, unsigned int max_bufs,
-			       unsigned int count)
+bool idpf_chk_linearize(struct sk_buff *skb, unsigned int max_bufs,
+			unsigned int count)
 {
 	if (likely(count < max_bufs))
 		return false;
@@ -2527,8 +2539,7 @@ idpf_tx_splitq_get_ctx_desc(struct idpf_queue *txq)
  * @tx_q: queue to send buffer on
  * @skb: pointer to skb
  */
-static netdev_tx_t idpf_tx_drop_skb(struct idpf_queue *tx_q,
-				    struct sk_buff *skb)
+netdev_tx_t idpf_tx_drop_skb(struct idpf_queue *tx_q, struct sk_buff *skb)
 {
 	u64_stats_update_begin(&tx_q->stats_sync);
 	u64_stats_inc(&tx_q->q_stats.tx.skb_drops);
@@ -2556,16 +2567,9 @@ static netdev_tx_t idpf_tx_splitq_frame(struct sk_buff *skb,
 	unsigned int count;
 	int tso;
 
-	count = idpf_tx_desc_count_required(skb);
-	if (idpf_chk_linearize(skb, tx_q->tx_max_bufs, count)) {
-		if (__skb_linearize(skb))
-			return idpf_tx_drop_skb(tx_q, skb);
-
-		count = idpf_size_to_txd_count(skb->len);
-		u64_stats_update_begin(&tx_q->stats_sync);
-		u64_stats_inc(&tx_q->q_stats.tx.linearize);
-		u64_stats_update_end(&tx_q->stats_sync);
-	}
+	count = idpf_tx_desc_count_required(tx_q, skb);
+	if (unlikely(!count))
+		return idpf_tx_drop_skb(tx_q, skb);
 
 	tso = idpf_tso(skb, &tx_params.offload);
 	if (unlikely(tso < 0))
@@ -2683,8 +2687,7 @@ netdev_tx_t idpf_tx_splitq_start(struct sk_buff *skb,
  * skb_set_hash based on PTYPE as parsed by HW Rx pipeline and is part of
  * Rx desc.
  */
-static enum pkt_hash_types
-idpf_ptype_to_htype(const struct idpf_rx_ptype_decoded *decoded)
+enum pkt_hash_types idpf_ptype_to_htype(const struct idpf_rx_ptype_decoded *decoded)
 {
 	if (!decoded->known)
 		return PKT_HASH_TYPE_NONE;
@@ -2944,8 +2947,8 @@ static int idpf_rx_process_skb_fields(struct idpf_queue *rxq,
  * It will just attach the page as a frag to the skb.
  * The function will then update the page offset.
  */
-static void idpf_rx_add_frag(struct idpf_rx_buf *rx_buf, struct sk_buff *skb,
-			     unsigned int size)
+void idpf_rx_add_frag(struct idpf_rx_buf *rx_buf, struct sk_buff *skb,
+		      unsigned int size)
 {
 	skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, rx_buf->page,
 			rx_buf->page_offset, size, rx_buf->truesize);
@@ -2963,9 +2966,9 @@ static void idpf_rx_add_frag(struct idpf_rx_buf *rx_buf, struct sk_buff *skb,
  * data from the current receive descriptor, taking care to set up the
  * skb correctly.
  */
-static struct sk_buff *idpf_rx_construct_skb(struct idpf_queue *rxq,
-					     struct idpf_rx_buf *rx_buf,
-					     unsigned int size)
+struct sk_buff *idpf_rx_construct_skb(struct idpf_queue *rxq,
+				      struct idpf_rx_buf *rx_buf,
+				      unsigned int size)
 {
 	unsigned int headlen;
 	struct sk_buff *skb;
@@ -3595,7 +3598,7 @@ static void idpf_net_dim(struct idpf_q_vector *q_vector)
  * Update the net_dim() algorithm and re-enable the interrupt associated with
  * this vector.
  */
-static void idpf_vport_intr_update_itr_ena_irq(struct idpf_q_vector *q_vector)
+void idpf_vport_intr_update_itr_ena_irq(struct idpf_q_vector *q_vector)
 {
 	u32 intval;
 

drivers/net/ethernet/intel/idpf/idpf_txrx.h

@@ -72,6 +72,12 @@ do {								\
 	}							\
 } while (0)
 
+#define IDPF_SINGLEQ_BUMP_RING_IDX(q, idx)			\
+do {								\
+	if (unlikely(++(idx) == (q)->desc_count))		\
+		idx = 0;					\
+} while (0)
+
 #define IDPF_RX_HDR_SIZE			256
 #define IDPF_RX_BUF_2048			2048
 #define IDPF_RX_BUF_4096			4096
@@ -101,6 +107,10 @@ do {								\
 	(&(((struct virtchnl2_splitq_rx_buf_desc *)((rxq)->desc_ring))[i]))
 #define IDPF_SPLITQ_RX_BI_DESC(rxq, i) ((((rxq)->ring))[i])
 
+#define IDPF_BASE_TX_DESC(txq, i)	\
+	(&(((struct idpf_base_tx_desc *)((txq)->desc_ring))[i]))
+#define IDPF_BASE_TX_CTX_DESC(txq, i) \
+	(&(((struct idpf_base_tx_ctx_desc *)((txq)->desc_ring))[i]))
 #define IDPF_SPLITQ_TX_COMPLQ_DESC(txcq, i)	\
 	(&(((struct idpf_splitq_tx_compl_desc *)((txcq)->desc_ring))[i]))
 
@@ -136,6 +146,9 @@ do {								\
 #define IDPF_TXD_LAST_DESC_CMD (IDPF_TX_DESC_CMD_EOP | IDPF_TX_DESC_CMD_RS)
 
 #define IDPF_TX_FLAGS_TSO		BIT(0)
+#define IDPF_TX_FLAGS_IPV4		BIT(1)
+#define IDPF_TX_FLAGS_IPV6		BIT(2)
+#define IDPF_TX_FLAGS_TUNNEL		BIT(3)
 
 union idpf_tx_flex_desc {
 	struct idpf_flex_tx_desc q; /* queue based scheduling */
@@ -199,6 +212,8 @@ struct idpf_buf_lifo {
 /**
  * struct idpf_tx_offload_params - Offload parameters for a given packet
  * @tx_flags: Feature flags enabled for this packet
+ * @hdr_offsets: Offset parameter for single queue model
+ * @cd_tunneling: Type of tunneling enabled for single queue model
  * @tso_len: Total length of payload to segment
  * @mss: Segment size
  * @tso_segs: Number of segments to be sent
@@ -208,6 +223,9 @@ struct idpf_buf_lifo {
 struct idpf_tx_offload_params {
 	u32 tx_flags;
 
+	u32 hdr_offsets;
+	u32 cd_tunneling;
+
 	u32 tso_len;
 	u16 mss;
 	u16 tso_segs;
@@ -235,6 +253,13 @@ struct idpf_tx_splitq_params {
 	struct idpf_tx_offload_params offload;
 };
 
+enum idpf_tx_ctx_desc_eipt_offload {
+	IDPF_TX_CTX_EXT_IP_NONE         = 0x0,
+	IDPF_TX_CTX_EXT_IP_IPV6         = 0x1,
+	IDPF_TX_CTX_EXT_IP_IPV4_NO_CSUM = 0x2,
+	IDPF_TX_CTX_EXT_IP_IPV4         = 0x3
+};
+
 /* Checksum offload bits decoded from the receive descriptor. */
 struct idpf_rx_csum_decoded {
 	u32 l3l4p : 1;
@@ -249,6 +274,11 @@ struct idpf_rx_csum_decoded {
 	u32 raw_csum : 16;
 };
 
+struct idpf_rx_extracted {
+	unsigned int size;
+	u16 rx_ptype;
+};
+
 #define IDPF_TX_COMPLQ_CLEAN_BUDGET	256
 #define IDPF_TX_MIN_PKT_LEN		17
 #define IDPF_TX_DESCS_FOR_SKB_DATA_PTR	1
@@ -832,6 +862,25 @@ static inline u32 idpf_size_to_txd_count(unsigned int size)
 	return DIV_ROUND_UP(size, IDPF_TX_MAX_DESC_DATA_ALIGNED);
 }
 
+/**
+ * idpf_tx_singleq_build_ctob - populate command tag offset and size
+ * @td_cmd: Command to be filled in desc
+ * @td_offset: Offset to be filled in desc
+ * @size: Size of the buffer
+ * @td_tag: td tag to be filled
+ *
+ * Returns the 64 bit value populated with the input parameters
+ */
+static inline __le64 idpf_tx_singleq_build_ctob(u64 td_cmd, u64 td_offset,
+						unsigned int size, u64 td_tag)
+{
+	return cpu_to_le64(IDPF_TX_DESC_DTYPE_DATA |
+			   (td_cmd << IDPF_TXD_QW1_CMD_S) |
+			   (td_offset << IDPF_TXD_QW1_OFFSET_S) |
+			   ((u64)size << IDPF_TXD_QW1_TX_BUF_SZ_S) |
+			   (td_tag << IDPF_TXD_QW1_L2TAG1_S));
+}
+
 void idpf_tx_splitq_build_ctb(union idpf_tx_flex_desc *desc,
 			      struct idpf_tx_splitq_params *params,
 			      u16 td_cmd, u16 size);
@@ -921,17 +970,38 @@ int idpf_vport_queues_alloc(struct idpf_vport *vport);
 void idpf_vport_queues_rel(struct idpf_vport *vport);
 void idpf_vport_intr_rel(struct idpf_vport *vport);
 int idpf_vport_intr_alloc(struct idpf_vport *vport);
+void idpf_vport_intr_update_itr_ena_irq(struct idpf_q_vector *q_vector);
 void idpf_vport_intr_deinit(struct idpf_vport *vport);
 int idpf_vport_intr_init(struct idpf_vport *vport);
+enum pkt_hash_types idpf_ptype_to_htype(const struct idpf_rx_ptype_decoded *decoded);
 int idpf_config_rss(struct idpf_vport *vport);
 int idpf_init_rss(struct idpf_vport *vport);
 void idpf_deinit_rss(struct idpf_vport *vport);
 int idpf_rx_bufs_init_all(struct idpf_vport *vport);
+void idpf_rx_add_frag(struct idpf_rx_buf *rx_buf, struct sk_buff *skb,
+		      unsigned int size);
+struct sk_buff *idpf_rx_construct_skb(struct idpf_queue *rxq,
+				      struct idpf_rx_buf *rx_buf,
+				      unsigned int size);
 bool idpf_init_rx_buf_hw_alloc(struct idpf_queue *rxq, struct idpf_rx_buf *buf);
 void idpf_rx_buf_hw_update(struct idpf_queue *rxq, u32 val);
+void idpf_tx_buf_hw_update(struct idpf_queue *tx_q, u32 val,
+			   bool xmit_more);
+unsigned int idpf_size_to_txd_count(unsigned int size);
+netdev_tx_t idpf_tx_drop_skb(struct idpf_queue *tx_q, struct sk_buff *skb);
+void idpf_tx_dma_map_error(struct idpf_queue *txq, struct sk_buff *skb,
+			   struct idpf_tx_buf *first, u16 ring_idx);
+unsigned int idpf_tx_desc_count_required(struct idpf_queue *txq,
+					 struct sk_buff *skb);
+bool idpf_chk_linearize(struct sk_buff *skb, unsigned int max_bufs,
+			unsigned int count);
+int idpf_tx_maybe_stop_common(struct idpf_queue *tx_q, unsigned int size);
 netdev_tx_t idpf_tx_splitq_start(struct sk_buff *skb,
 				 struct net_device *netdev);
+netdev_tx_t idpf_tx_singleq_start(struct sk_buff *skb,
+				  struct net_device *netdev);
 bool idpf_rx_singleq_buf_hw_alloc_all(struct idpf_queue *rxq,
 				      u16 cleaned_count);
+int idpf_tso(struct sk_buff *skb, struct idpf_tx_offload_params *off);
 
 #endif /* !_IDPF_TXRX_H_ */

drivers/net/ethernet/intel/idpf/idpf_virtchnl.c

@@ -2893,6 +2893,8 @@ void idpf_vport_init(struct idpf_vport *vport, struct idpf_vport_max_q *max_q)
 	idpf_vport_calc_num_q_desc(vport);
 	idpf_vport_calc_num_q_groups(vport);
 	idpf_vport_alloc_vec_indexes(vport);
+
+	vport->crc_enable = adapter->crc_enable;
 }
 
 /**