55 static int	ixl_isc_txd_encap(void *arg, if_pkt_info_t pi);
156 ixl_tso_detect_sparse(bus_dma_segment_t *segs, int nsegs, if_pkt_info_t pi)  in ixl_tso_detect_sparse()  argument
162 	segsz = pi->ipi_tso_segsz;  in ixl_tso_detect_sparse()
165 	hlen = pi->ipi_ehdrlen + pi->ipi_ip_hlen + pi->ipi_tcp_hlen;  in ixl_tso_detect_sparse()
166 	tsolen = pi->ipi_len - hlen;  in ixl_tso_detect_sparse()
187 		segsz = pi->ipi_tso_segsz;  in ixl_tso_detect_sparse()
222     if_pkt_info_t pi, u32 *cmd, u32 *off)  in ixl_tx_setup_offload()  argument
224 	switch (pi->ipi_etype) {  in ixl_tx_setup_offload()
227 			if (pi->ipi_csum_flags & IXL_CSUM_IPV4)  in ixl_tx_setup_offload()
242 	*off |= (pi->ipi_ehdrlen >> 1) << I40E_TX_DESC_LENGTH_MACLEN_SHIFT;  in ixl_tx_setup_offload()
243 	*off |= (pi->ipi_ip_hlen >> 2) << I40E_TX_DESC_LENGTH_IPLEN_SHIFT;  in ixl_tx_setup_offload()
245 	switch (pi->ipi_ipproto) {  in ixl_tx_setup_offload()
247 			if (pi->ipi_csum_flags & IXL_CSUM_TCP) {  in ixl_tx_setup_offload()
249 				*off |= (pi->ipi_tcp_hlen >> 2) <<  in ixl_tx_setup_offload()
252 				MPASS(pi->ipi_tcp_hlen != 0);  in ixl_tx_setup_offload()
256 			if (pi->ipi_csum_flags & IXL_CSUM_UDP) {  in ixl_tx_setup_offload()
263 			if (pi->ipi_csum_flags & IXL_CSUM_SCTP) {  in ixl_tx_setup_offload()
280 ixl_tso_setup(struct tx_ring *txr, if_pkt_info_t pi)  in ixl_tso_setup()  argument
288 	idx = pi->ipi_pidx;  in ixl_tso_setup()
290 	total_hdr_len = pi->ipi_ehdrlen + pi->ipi_ip_hlen + pi->ipi_tcp_hlen;  in ixl_tso_setup()
291 	tsolen = pi->ipi_len - total_hdr_len;  in ixl_tso_setup()
300 	if (pi->ipi_tso_segsz < IXL_MIN_TSO_MSS) {  in ixl_tso_setup()
302 		pi->ipi_tso_segsz = IXL_MIN_TSO_MSS;  in ixl_tso_setup()
304 	mss = pi->ipi_tso_segsz;  in ixl_tso_setup()
309 	MPASS(pi->ipi_ehdrlen != 0);  in ixl_tso_setup()
310 	MPASS(pi->ipi_ip_hlen != 0);  in ixl_tso_setup()
338 ixl_isc_txd_encap(void *arg, if_pkt_info_t pi)  in ixl_isc_txd_encap()  argument
342 	struct ixl_tx_queue	*que = &vsi->tx_queues[pi->ipi_qsidx];  in ixl_isc_txd_encap()
344 	int			nsegs = pi->ipi_nsegs;  in ixl_isc_txd_encap()
345 	bus_dma_segment_t *segs = pi->ipi_segs;  in ixl_isc_txd_encap()
351 	i = pi->ipi_pidx;  in ixl_isc_txd_encap()
353 	tx_intr = (pi->ipi_flags & IPI_TX_INTR);  in ixl_isc_txd_encap()
356 	if (pi->ipi_csum_flags & CSUM_OFFLOAD) {  in ixl_isc_txd_encap()
358 		if (pi->ipi_csum_flags & CSUM_TSO) {  in ixl_isc_txd_encap()
360 			if (ixl_tso_detect_sparse(segs, nsegs, pi))  in ixl_isc_txd_encap()
362 			i = ixl_tso_setup(txr, pi);  in ixl_isc_txd_encap()
364 		ixl_tx_setup_offload(que, pi, &cmd, &off);  in ixl_isc_txd_encap()
366 	if (pi->ipi_mflags & M_VLANTAG)  in ixl_isc_txd_encap()
372 	MPASS(pi->ipi_len >= IXL_MIN_FRAME);  in ixl_isc_txd_encap()
374 	if (!(pi->ipi_csum_flags & CSUM_TSO))  in ixl_isc_txd_encap()
375 		MPASS(pi->ipi_len <= IXL_MAX_FRAME);  in ixl_isc_txd_encap()
392 	            | ((u64)htole16(pi->ipi_vtag) << I40E_TXD_QW1_L2TAG1_SHIFT));  in ixl_isc_txd_encap()
407 	pi->ipi_new_pidx = i;  in ixl_isc_txd_encap()