49 static int	iavf_isc_txd_encap(void *arg, if_pkt_info_t pi);
116  * @pi: packet information
130 iavf_tso_detect_sparse(bus_dma_segment_t *segs, int nsegs, if_pkt_info_t pi)  in iavf_tso_detect_sparse()  argument
136 	segsz = pi->ipi_tso_segsz;  in iavf_tso_detect_sparse()
139 	hlen = pi->ipi_ehdrlen + pi->ipi_ip_hlen + pi->ipi_tcp_hlen;  in iavf_tso_detect_sparse()
140 	tsolen = pi->ipi_len - hlen;  in iavf_tso_detect_sparse()
160 		segsz = pi->ipi_tso_segsz;  in iavf_tso_detect_sparse()
187  * @pi: Tx packet info
196     if_pkt_info_t pi, u32 *cmd, u32 *off)  in iavf_tx_setup_offload()  argument
198 	switch (pi->ipi_etype) {  in iavf_tx_setup_offload()
201 			if (pi->ipi_csum_flags & IAVF_CSUM_IPV4)  in iavf_tx_setup_offload()
216 	*off |= (pi->ipi_ehdrlen >> 1) << IAVF_TX_DESC_LENGTH_MACLEN_SHIFT;  in iavf_tx_setup_offload()
217 	*off |= (pi->ipi_ip_hlen >> 2) << IAVF_TX_DESC_LENGTH_IPLEN_SHIFT;  in iavf_tx_setup_offload()
219 	switch (pi->ipi_ipproto) {  in iavf_tx_setup_offload()
221 			if (pi->ipi_csum_flags & IAVF_CSUM_TCP) {  in iavf_tx_setup_offload()
223 				*off |= (pi->ipi_tcp_hlen >> 2) <<  in iavf_tx_setup_offload()
226 				MPASS(pi->ipi_tcp_hlen != 0);  in iavf_tx_setup_offload()
230 			if (pi->ipi_csum_flags & IAVF_CSUM_UDP) {  in iavf_tx_setup_offload()
237 			if (pi->ipi_csum_flags & IAVF_CSUM_SCTP) {  in iavf_tx_setup_offload()
251  * @pi: packet info structure
259 iavf_tso_setup(struct tx_ring *txr, if_pkt_info_t pi)  in iavf_tso_setup()  argument
267 	idx = pi->ipi_pidx;  in iavf_tso_setup()
269 	total_hdr_len = pi->ipi_ehdrlen + pi->ipi_ip_hlen + pi->ipi_tcp_hlen;  in iavf_tso_setup()
270 	tsolen = pi->ipi_len - total_hdr_len;  in iavf_tso_setup()
279 	if (pi->ipi_tso_segsz < IAVF_MIN_TSO_MSS) {  in iavf_tso_setup()
281 		pi->ipi_tso_segsz = IAVF_MIN_TSO_MSS;  in iavf_tso_setup()
283 	mss = pi->ipi_tso_segsz;  in iavf_tso_setup()
288 	MPASS(pi->ipi_ehdrlen != 0);  in iavf_tso_setup()
289 	MPASS(pi->ipi_ip_hlen != 0);  in iavf_tso_setup()
312  * @pi: packet info to encapsulate
320 iavf_isc_txd_encap(void *arg, if_pkt_info_t pi)  in iavf_isc_txd_encap()  argument
324 	struct iavf_tx_queue	*que = &vsi->tx_queues[pi->ipi_qsidx];  in iavf_isc_txd_encap()
326 	int			nsegs = pi->ipi_nsegs;  in iavf_isc_txd_encap()
327 	bus_dma_segment_t *segs = pi->ipi_segs;  in iavf_isc_txd_encap()
332 	if (__predict_false(pi->ipi_len < IAVF_MIN_FRAME)) {  in iavf_isc_txd_encap()
338 	i = pi->ipi_pidx;  in iavf_isc_txd_encap()
340 	tx_intr = (pi->ipi_flags & IPI_TX_INTR);  in iavf_isc_txd_encap()
343 	if (pi->ipi_csum_flags & CSUM_OFFLOAD) {  in iavf_isc_txd_encap()
345 		if (pi->ipi_csum_flags & CSUM_TSO) {  in iavf_isc_txd_encap()
347 			if (iavf_tso_detect_sparse(segs, nsegs, pi))  in iavf_isc_txd_encap()
349 			i = iavf_tso_setup(txr, pi);  in iavf_isc_txd_encap()
351 		iavf_tx_setup_offload(que, pi, &cmd, &off);  in iavf_isc_txd_encap()
353 	if (pi->ipi_mflags & M_VLANTAG)  in iavf_isc_txd_encap()
359 	MPASS(pi->ipi_len >= IAVF_MIN_FRAME);  in iavf_isc_txd_encap()
361 	if (!(pi->ipi_csum_flags & CSUM_TSO))  in iavf_isc_txd_encap()
362 		MPASS(pi->ipi_len <= IAVF_MAX_FRAME);  in iavf_isc_txd_encap()
379 	            | ((u64)htole16(pi->ipi_vtag) << IAVF_TXD_QW1_L2TAG1_SHIFT));  in iavf_isc_txd_encap()
394 	pi->ipi_new_pidx = i;  in iavf_isc_txd_encap()