2 * Copyright (c) 2015-2016, Mellanox Technologies. All rights reserved.
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
33 #include <linux/tcp.h>
34 #include <linux/if_vlan.h>
35 #include <net/geneve.h>
36 #include <net/dsfield.h>
38 #include "ipoib/ipoib.h"
39 #include "en_accel/en_accel.h"
40 #include "lib/clock.h"
42 #define MLX5E_SQ_NOPS_ROOM MLX5_SEND_WQE_MAX_WQEBBS
44 #ifndef CONFIG_MLX5_EN_TLS
45 #define MLX5E_SQ_STOP_ROOM (MLX5_SEND_WQE_MAX_WQEBBS +\
48 /* TLS offload requires MLX5E_SQ_STOP_ROOM to have
49 * enough room for a resync SKB, a normal SKB and a NOP
51 #define MLX5E_SQ_STOP_ROOM (2 * MLX5_SEND_WQE_MAX_WQEBBS +\
55 static inline void mlx5e_tx_dma_unmap(struct device *pdev,
56 struct mlx5e_sq_dma *dma)
59 case MLX5E_DMA_MAP_SINGLE:
60 dma_unmap_single(pdev, dma->addr, dma->size, DMA_TO_DEVICE);
62 case MLX5E_DMA_MAP_PAGE:
63 dma_unmap_page(pdev, dma->addr, dma->size, DMA_TO_DEVICE);
66 WARN_ONCE(true, "mlx5e_tx_dma_unmap unknown DMA type!\n");
70 static inline struct mlx5e_sq_dma *mlx5e_dma_get(struct mlx5e_txqsq *sq, u32 i)
72 return &sq->db.dma_fifo[i & sq->dma_fifo_mask];
75 static inline void mlx5e_dma_push(struct mlx5e_txqsq *sq,
78 enum mlx5e_dma_map_type map_type)
80 struct mlx5e_sq_dma *dma = mlx5e_dma_get(sq, sq->dma_fifo_pc++);
87 static void mlx5e_dma_unmap_wqe_err(struct mlx5e_txqsq *sq, u8 num_dma)
91 for (i = 0; i < num_dma; i++) {
92 struct mlx5e_sq_dma *last_pushed_dma =
93 mlx5e_dma_get(sq, --sq->dma_fifo_pc);
95 mlx5e_tx_dma_unmap(sq->pdev, last_pushed_dma);
99 #ifdef CONFIG_MLX5_CORE_EN_DCB
100 static inline int mlx5e_get_dscp_up(struct mlx5e_priv *priv, struct sk_buff *skb)
104 if (skb->protocol == htons(ETH_P_IP))
105 dscp_cp = ipv4_get_dsfield(ip_hdr(skb)) >> 2;
106 else if (skb->protocol == htons(ETH_P_IPV6))
107 dscp_cp = ipv6_get_dsfield(ipv6_hdr(skb)) >> 2;
109 return priv->dcbx_dp.dscp2prio[dscp_cp];
113 u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb,
114 struct net_device *sb_dev)
116 int txq_ix = netdev_pick_tx(dev, skb, NULL);
117 struct mlx5e_priv *priv = netdev_priv(dev);
121 if (!netdev_get_num_tc(dev))
124 #ifdef CONFIG_MLX5_CORE_EN_DCB
125 if (priv->dcbx_dp.trust_state == MLX5_QPTS_TRUST_DSCP)
126 up = mlx5e_get_dscp_up(priv, skb);
129 if (skb_vlan_tag_present(skb))
130 up = skb_vlan_tag_get_prio(skb);
132 /* txq_ix can be larger than num_channels since
133 * dev->num_real_tx_queues = num_channels * num_tc
135 num_channels = priv->channels.params.num_channels;
136 if (txq_ix >= num_channels)
137 txq_ix = priv->txq2sq[txq_ix]->ch_ix;
139 return priv->channel_tc2txq[txq_ix][up];
142 static inline int mlx5e_skb_l2_header_offset(struct sk_buff *skb)
144 #define MLX5E_MIN_INLINE (ETH_HLEN + VLAN_HLEN)
146 return max(skb_network_offset(skb), MLX5E_MIN_INLINE);
149 static inline int mlx5e_skb_l3_header_offset(struct sk_buff *skb)
151 if (skb_transport_header_was_set(skb))
152 return skb_transport_offset(skb);
154 return mlx5e_skb_l2_header_offset(skb);
157 static inline u16 mlx5e_calc_min_inline(enum mlx5_inline_modes mode,
163 case MLX5_INLINE_MODE_NONE:
165 case MLX5_INLINE_MODE_TCP_UDP:
166 hlen = eth_get_headlen(skb->dev, skb->data, skb_headlen(skb));
167 if (hlen == ETH_HLEN && !skb_vlan_tag_present(skb))
170 case MLX5_INLINE_MODE_IP:
171 hlen = mlx5e_skb_l3_header_offset(skb);
173 case MLX5_INLINE_MODE_L2:
175 hlen = mlx5e_skb_l2_header_offset(skb);
177 return min_t(u16, hlen, skb_headlen(skb));
180 static inline void mlx5e_insert_vlan(void *start, struct sk_buff *skb, u16 ihs)
182 struct vlan_ethhdr *vhdr = (struct vlan_ethhdr *)start;
183 int cpy1_sz = 2 * ETH_ALEN;
184 int cpy2_sz = ihs - cpy1_sz;
186 memcpy(vhdr, skb->data, cpy1_sz);
187 vhdr->h_vlan_proto = skb->vlan_proto;
188 vhdr->h_vlan_TCI = cpu_to_be16(skb_vlan_tag_get(skb));
189 memcpy(&vhdr->h_vlan_encapsulated_proto, skb->data + cpy1_sz, cpy2_sz);
193 mlx5e_txwqe_build_eseg_csum(struct mlx5e_txqsq *sq, struct sk_buff *skb, struct mlx5_wqe_eth_seg *eseg)
195 if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) {
196 eseg->cs_flags = MLX5_ETH_WQE_L3_CSUM;
197 if (skb->encapsulation) {
198 eseg->cs_flags |= MLX5_ETH_WQE_L3_INNER_CSUM |
199 MLX5_ETH_WQE_L4_INNER_CSUM;
200 sq->stats->csum_partial_inner++;
202 eseg->cs_flags |= MLX5_ETH_WQE_L4_CSUM;
203 sq->stats->csum_partial++;
206 sq->stats->csum_none++;
210 mlx5e_tx_get_gso_ihs(struct mlx5e_txqsq *sq, struct sk_buff *skb)
212 struct mlx5e_sq_stats *stats = sq->stats;
215 if (skb->encapsulation) {
216 ihs = skb_inner_transport_offset(skb) + inner_tcp_hdrlen(skb);
217 stats->tso_inner_packets++;
218 stats->tso_inner_bytes += skb->len - ihs;
220 if (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4)
221 ihs = skb_transport_offset(skb) + sizeof(struct udphdr);
223 ihs = skb_transport_offset(skb) + tcp_hdrlen(skb);
224 stats->tso_packets++;
225 stats->tso_bytes += skb->len - ihs;
232 mlx5e_txwqe_build_dsegs(struct mlx5e_txqsq *sq, struct sk_buff *skb,
233 unsigned char *skb_data, u16 headlen,
234 struct mlx5_wqe_data_seg *dseg)
236 dma_addr_t dma_addr = 0;
241 dma_addr = dma_map_single(sq->pdev, skb_data, headlen,
243 if (unlikely(dma_mapping_error(sq->pdev, dma_addr)))
244 goto dma_unmap_wqe_err;
246 dseg->addr = cpu_to_be64(dma_addr);
247 dseg->lkey = sq->mkey_be;
248 dseg->byte_count = cpu_to_be32(headlen);
250 mlx5e_dma_push(sq, dma_addr, headlen, MLX5E_DMA_MAP_SINGLE);
255 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
256 struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i];
257 int fsz = skb_frag_size(frag);
259 dma_addr = skb_frag_dma_map(sq->pdev, frag, 0, fsz,
261 if (unlikely(dma_mapping_error(sq->pdev, dma_addr)))
262 goto dma_unmap_wqe_err;
264 dseg->addr = cpu_to_be64(dma_addr);
265 dseg->lkey = sq->mkey_be;
266 dseg->byte_count = cpu_to_be32(fsz);
268 mlx5e_dma_push(sq, dma_addr, fsz, MLX5E_DMA_MAP_PAGE);
276 mlx5e_dma_unmap_wqe_err(sq, num_dma);
280 static inline void mlx5e_fill_sq_frag_edge(struct mlx5e_txqsq *sq,
281 struct mlx5_wq_cyc *wq,
284 struct mlx5e_tx_wqe_info *edge_wi, *wi = &sq->db.wqe_info[pi];
286 edge_wi = wi + nnops;
288 /* fill sq frag edge with nops to avoid wqe wrapping two pages */
289 for (; wi < edge_wi; wi++) {
292 mlx5e_post_nop(wq, sq->sqn, &sq->pc);
294 sq->stats->nop += nnops;
298 mlx5e_txwqe_complete(struct mlx5e_txqsq *sq, struct sk_buff *skb,
299 u8 opcode, u16 ds_cnt, u8 num_wqebbs, u32 num_bytes, u8 num_dma,
300 struct mlx5e_tx_wqe_info *wi, struct mlx5_wqe_ctrl_seg *cseg,
303 struct mlx5_wq_cyc *wq = &sq->wq;
305 wi->num_bytes = num_bytes;
306 wi->num_dma = num_dma;
307 wi->num_wqebbs = num_wqebbs;
310 cseg->opmod_idx_opcode = cpu_to_be32((sq->pc << 8) | opcode);
311 cseg->qpn_ds = cpu_to_be32((sq->sqn << 8) | ds_cnt);
313 netdev_tx_sent_queue(sq->txq, num_bytes);
315 if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP))
316 skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
318 sq->pc += wi->num_wqebbs;
319 if (unlikely(!mlx5e_wqc_has_room_for(wq, sq->cc, sq->pc, MLX5E_SQ_STOP_ROOM))) {
320 netif_tx_stop_queue(sq->txq);
321 sq->stats->stopped++;
324 if (!xmit_more || netif_xmit_stopped(sq->txq))
325 mlx5e_notify_hw(wq, sq->pc, sq->uar_map, cseg);
328 #define INL_HDR_START_SZ (sizeof(((struct mlx5_wqe_eth_seg *)NULL)->inline_hdr.start))
330 netdev_tx_t mlx5e_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb,
331 struct mlx5e_tx_wqe *wqe, u16 pi, bool xmit_more)
333 struct mlx5_wq_cyc *wq = &sq->wq;
334 struct mlx5_wqe_ctrl_seg *cseg;
335 struct mlx5_wqe_eth_seg *eseg;
336 struct mlx5_wqe_data_seg *dseg;
337 struct mlx5e_tx_wqe_info *wi;
339 struct mlx5e_sq_stats *stats = sq->stats;
340 u16 headlen, ihs, contig_wqebbs_room;
341 u16 ds_cnt, ds_cnt_inl = 0;
342 u8 num_wqebbs, opcode;
347 /* Calc ihs and ds cnt, no writes to wqe yet */
348 ds_cnt = sizeof(*wqe) / MLX5_SEND_WQE_DS;
349 if (skb_is_gso(skb)) {
350 opcode = MLX5_OPCODE_LSO;
351 mss = cpu_to_be16(skb_shinfo(skb)->gso_size);
352 ihs = mlx5e_tx_get_gso_ihs(sq, skb);
353 num_bytes = skb->len + (skb_shinfo(skb)->gso_segs - 1) * ihs;
354 stats->packets += skb_shinfo(skb)->gso_segs;
356 opcode = MLX5_OPCODE_SEND;
358 ihs = mlx5e_calc_min_inline(sq->min_inline_mode, skb);
359 num_bytes = max_t(unsigned int, skb->len, ETH_ZLEN);
363 stats->bytes += num_bytes;
364 stats->xmit_more += xmit_more;
366 headlen = skb->len - ihs - skb->data_len;
368 ds_cnt += skb_shinfo(skb)->nr_frags;
371 ihs += !!skb_vlan_tag_present(skb) * VLAN_HLEN;
373 ds_cnt_inl = DIV_ROUND_UP(ihs - INL_HDR_START_SZ, MLX5_SEND_WQE_DS);
374 ds_cnt += ds_cnt_inl;
377 num_wqebbs = DIV_ROUND_UP(ds_cnt, MLX5_SEND_WQEBB_NUM_DS);
378 contig_wqebbs_room = mlx5_wq_cyc_get_contig_wqebbs(wq, pi);
379 if (unlikely(contig_wqebbs_room < num_wqebbs)) {
380 #ifdef CONFIG_MLX5_EN_IPSEC
381 struct mlx5_wqe_eth_seg cur_eth = wqe->eth;
383 mlx5e_fill_sq_frag_edge(sq, wq, pi, contig_wqebbs_room);
384 mlx5e_sq_fetch_wqe(sq, &wqe, &pi);
385 #ifdef CONFIG_MLX5_EN_IPSEC
391 wi = &sq->db.wqe_info[pi];
396 #if IS_ENABLED(CONFIG_GENEVE)
397 if (skb->encapsulation)
398 mlx5e_tx_tunnel_accel(skb, eseg);
400 mlx5e_txwqe_build_eseg_csum(sq, skb, eseg);
405 eseg->inline_hdr.sz = cpu_to_be16(ihs);
406 if (skb_vlan_tag_present(skb)) {
408 mlx5e_insert_vlan(eseg->inline_hdr.start, skb, ihs);
409 stats->added_vlan_packets++;
411 memcpy(eseg->inline_hdr.start, skb->data, ihs);
414 } else if (skb_vlan_tag_present(skb)) {
415 eseg->insert.type = cpu_to_be16(MLX5_ETH_WQE_INSERT_VLAN);
416 if (skb->vlan_proto == cpu_to_be16(ETH_P_8021AD))
417 eseg->insert.type |= cpu_to_be16(MLX5_ETH_WQE_SVLAN);
418 eseg->insert.vlan_tci = cpu_to_be16(skb_vlan_tag_get(skb));
419 stats->added_vlan_packets++;
422 num_dma = mlx5e_txwqe_build_dsegs(sq, skb, skb->data + ihs, headlen, dseg);
423 if (unlikely(num_dma < 0))
426 mlx5e_txwqe_complete(sq, skb, opcode, ds_cnt, num_wqebbs, num_bytes,
427 num_dma, wi, cseg, xmit_more);
433 dev_kfree_skb_any(skb);
438 netdev_tx_t mlx5e_xmit(struct sk_buff *skb, struct net_device *dev)
440 struct mlx5e_priv *priv = netdev_priv(dev);
441 struct mlx5e_tx_wqe *wqe;
442 struct mlx5e_txqsq *sq;
445 sq = priv->txq2sq[skb_get_queue_mapping(skb)];
446 mlx5e_sq_fetch_wqe(sq, &wqe, &pi);
448 /* might send skbs and update wqe and pi */
449 skb = mlx5e_accel_handle_tx(skb, sq, dev, &wqe, &pi);
453 return mlx5e_sq_xmit(sq, skb, wqe, pi, netdev_xmit_more());
456 static void mlx5e_dump_error_cqe(struct mlx5e_txqsq *sq,
457 struct mlx5_err_cqe *err_cqe)
459 u32 ci = mlx5_cqwq_get_ci(&sq->cq.wq);
461 netdev_err(sq->channel->netdev,
462 "Error cqe on cqn 0x%x, ci 0x%x, sqn 0x%x, opcode 0x%x, syndrome 0x%x, vendor syndrome 0x%x\n",
463 sq->cq.mcq.cqn, ci, sq->sqn,
464 get_cqe_opcode((struct mlx5_cqe64 *)err_cqe),
465 err_cqe->syndrome, err_cqe->vendor_err_synd);
466 mlx5_dump_err_cqe(sq->cq.mdev, err_cqe);
469 bool mlx5e_poll_tx_cq(struct mlx5e_cq *cq, int napi_budget)
471 struct mlx5e_sq_stats *stats;
472 struct mlx5e_txqsq *sq;
473 struct mlx5_cqe64 *cqe;
480 sq = container_of(cq, struct mlx5e_txqsq, cq);
482 if (unlikely(!test_bit(MLX5E_SQ_STATE_ENABLED, &sq->state)))
485 cqe = mlx5_cqwq_get_cqe(&cq->wq);
494 /* sq->cc must be updated only after mlx5_cqwq_update_db_record(),
495 * otherwise a cq overrun may occur
499 /* avoid dirtying sq cache line every cqe */
500 dma_fifo_cc = sq->dma_fifo_cc;
507 mlx5_cqwq_pop(&cq->wq);
509 wqe_counter = be16_to_cpu(cqe->wqe_counter);
511 if (unlikely(get_cqe_opcode(cqe) == MLX5_CQE_REQ_ERR)) {
512 if (!test_and_set_bit(MLX5E_SQ_STATE_RECOVERING,
514 mlx5e_dump_error_cqe(sq,
515 (struct mlx5_err_cqe *)cqe);
516 queue_work(cq->channel->priv->wq,
523 struct mlx5e_tx_wqe_info *wi;
528 last_wqe = (sqcc == wqe_counter);
530 ci = mlx5_wq_cyc_ctr2ix(&sq->wq, sqcc);
531 wi = &sq->db.wqe_info[ci];
534 if (unlikely(!skb)) { /* nop */
539 if (unlikely(skb_shinfo(skb)->tx_flags &
541 struct skb_shared_hwtstamps hwts = {};
544 mlx5_timecounter_cyc2time(sq->clock,
546 skb_tstamp_tx(skb, &hwts);
549 for (j = 0; j < wi->num_dma; j++) {
550 struct mlx5e_sq_dma *dma =
551 mlx5e_dma_get(sq, dma_fifo_cc++);
553 mlx5e_tx_dma_unmap(sq->pdev, dma);
557 nbytes += wi->num_bytes;
558 sqcc += wi->num_wqebbs;
559 napi_consume_skb(skb, napi_budget);
562 } while ((++i < MLX5E_TX_CQ_POLL_BUDGET) && (cqe = mlx5_cqwq_get_cqe(&cq->wq)));
566 mlx5_cqwq_update_db_record(&cq->wq);
568 /* ensure cq space is freed before enabling more cqes */
571 sq->dma_fifo_cc = dma_fifo_cc;
574 netdev_tx_completed_queue(sq->txq, npkts, nbytes);
576 if (netif_tx_queue_stopped(sq->txq) &&
577 mlx5e_wqc_has_room_for(&sq->wq, sq->cc, sq->pc,
578 MLX5E_SQ_STOP_ROOM) &&
579 !test_bit(MLX5E_SQ_STATE_RECOVERING, &sq->state)) {
580 netif_tx_wake_queue(sq->txq);
584 return (i == MLX5E_TX_CQ_POLL_BUDGET);
587 void mlx5e_free_txqsq_descs(struct mlx5e_txqsq *sq)
589 struct mlx5e_tx_wqe_info *wi;
594 while (sq->cc != sq->pc) {
595 ci = mlx5_wq_cyc_ctr2ix(&sq->wq, sq->cc);
596 wi = &sq->db.wqe_info[ci];
599 if (!skb) { /* nop */
604 for (i = 0; i < wi->num_dma; i++) {
605 struct mlx5e_sq_dma *dma =
606 mlx5e_dma_get(sq, sq->dma_fifo_cc++);
608 mlx5e_tx_dma_unmap(sq->pdev, dma);
611 dev_kfree_skb_any(skb);
612 sq->cc += wi->num_wqebbs;
616 #ifdef CONFIG_MLX5_CORE_IPOIB
618 mlx5i_txwqe_build_datagram(struct mlx5_av *av, u32 dqpn, u32 dqkey,
619 struct mlx5_wqe_datagram_seg *dseg)
621 memcpy(&dseg->av, av, sizeof(struct mlx5_av));
622 dseg->av.dqp_dct = cpu_to_be32(dqpn | MLX5_EXTENDED_UD_AV);
623 dseg->av.key.qkey.qkey = cpu_to_be32(dqkey);
626 netdev_tx_t mlx5i_sq_xmit(struct mlx5e_txqsq *sq, struct sk_buff *skb,
627 struct mlx5_av *av, u32 dqpn, u32 dqkey,
630 struct mlx5_wq_cyc *wq = &sq->wq;
631 struct mlx5i_tx_wqe *wqe;
633 struct mlx5_wqe_datagram_seg *datagram;
634 struct mlx5_wqe_ctrl_seg *cseg;
635 struct mlx5_wqe_eth_seg *eseg;
636 struct mlx5_wqe_data_seg *dseg;
637 struct mlx5e_tx_wqe_info *wi;
639 struct mlx5e_sq_stats *stats = sq->stats;
640 u16 headlen, ihs, pi, contig_wqebbs_room;
641 u16 ds_cnt, ds_cnt_inl = 0;
642 u8 num_wqebbs, opcode;
647 /* Calc ihs and ds cnt, no writes to wqe yet */
648 ds_cnt = sizeof(*wqe) / MLX5_SEND_WQE_DS;
649 if (skb_is_gso(skb)) {
650 opcode = MLX5_OPCODE_LSO;
651 mss = cpu_to_be16(skb_shinfo(skb)->gso_size);
652 ihs = mlx5e_tx_get_gso_ihs(sq, skb);
653 num_bytes = skb->len + (skb_shinfo(skb)->gso_segs - 1) * ihs;
654 stats->packets += skb_shinfo(skb)->gso_segs;
656 opcode = MLX5_OPCODE_SEND;
658 ihs = mlx5e_calc_min_inline(sq->min_inline_mode, skb);
659 num_bytes = max_t(unsigned int, skb->len, ETH_ZLEN);
663 stats->bytes += num_bytes;
664 stats->xmit_more += xmit_more;
666 headlen = skb->len - ihs - skb->data_len;
668 ds_cnt += skb_shinfo(skb)->nr_frags;
671 ds_cnt_inl = DIV_ROUND_UP(ihs - INL_HDR_START_SZ, MLX5_SEND_WQE_DS);
672 ds_cnt += ds_cnt_inl;
675 num_wqebbs = DIV_ROUND_UP(ds_cnt, MLX5_SEND_WQEBB_NUM_DS);
676 pi = mlx5_wq_cyc_ctr2ix(wq, sq->pc);
677 contig_wqebbs_room = mlx5_wq_cyc_get_contig_wqebbs(wq, pi);
678 if (unlikely(contig_wqebbs_room < num_wqebbs)) {
679 mlx5e_fill_sq_frag_edge(sq, wq, pi, contig_wqebbs_room);
680 pi = mlx5_wq_cyc_ctr2ix(wq, sq->pc);
683 mlx5i_sq_fetch_wqe(sq, &wqe, pi);
686 wi = &sq->db.wqe_info[pi];
688 datagram = &wqe->datagram;
692 mlx5i_txwqe_build_datagram(av, dqpn, dqkey, datagram);
694 mlx5e_txwqe_build_eseg_csum(sq, skb, eseg);
699 memcpy(eseg->inline_hdr.start, skb->data, ihs);
700 eseg->inline_hdr.sz = cpu_to_be16(ihs);
704 num_dma = mlx5e_txwqe_build_dsegs(sq, skb, skb->data + ihs, headlen, dseg);
705 if (unlikely(num_dma < 0))
708 mlx5e_txwqe_complete(sq, skb, opcode, ds_cnt, num_wqebbs, num_bytes,
709 num_dma, wi, cseg, xmit_more);
715 dev_kfree_skb_any(skb);