1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2015 Intel Corporation.
3 * Copyright(c) 2016-2018, Linaro Limited.
7 #include <ethdev_driver.h>
8 #include <rte_malloc.h>
11 #include "base/i40e_prototype.h"
12 #include "base/i40e_type.h"
13 #include "i40e_ethdev.h"
14 #include "i40e_rxtx.h"
15 #include "i40e_rxtx_vec_common.h"
18 #pragma GCC diagnostic ignored "-Wcast-qual"
21 i40e_rxq_rearm(struct i40e_rx_queue *rxq)
25 volatile union i40e_rx_desc *rxdp;
26 struct i40e_rx_entry *rxep = &rxq->sw_ring[rxq->rxrearm_start];
27 struct rte_mbuf *mb0, *mb1;
28 uint64x2_t dma_addr0, dma_addr1;
29 uint64x2_t zero = vdupq_n_u64(0);
32 rxdp = rxq->rx_ring + rxq->rxrearm_start;
34 /* Pull 'n' more MBUFs into the software ring */
35 if (unlikely(rte_mempool_get_bulk(rxq->mp,
37 RTE_I40E_RXQ_REARM_THRESH) < 0)) {
38 if (rxq->rxrearm_nb + RTE_I40E_RXQ_REARM_THRESH >=
40 for (i = 0; i < RTE_I40E_DESCS_PER_LOOP; i++) {
41 rxep[i].mbuf = &rxq->fake_mbuf;
42 vst1q_u64((uint64_t *)&rxdp[i].read, zero);
45 rte_eth_devices[rxq->port_id].data->rx_mbuf_alloc_failed +=
46 RTE_I40E_RXQ_REARM_THRESH;
50 /* Initialize the mbufs in vector, process 2 mbufs in one loop */
51 for (i = 0; i < RTE_I40E_RXQ_REARM_THRESH; i += 2, rxep += 2) {
55 paddr = mb0->buf_iova + RTE_PKTMBUF_HEADROOM;
56 dma_addr0 = vdupq_n_u64(paddr);
58 /* flush desc with pa dma_addr */
59 vst1q_u64((uint64_t *)&rxdp++->read, dma_addr0);
61 paddr = mb1->buf_iova + RTE_PKTMBUF_HEADROOM;
62 dma_addr1 = vdupq_n_u64(paddr);
63 vst1q_u64((uint64_t *)&rxdp++->read, dma_addr1);
66 rxq->rxrearm_start += RTE_I40E_RXQ_REARM_THRESH;
67 if (rxq->rxrearm_start >= rxq->nb_rx_desc)
68 rxq->rxrearm_start = 0;
70 rxq->rxrearm_nb -= RTE_I40E_RXQ_REARM_THRESH;
72 rx_id = (uint16_t)((rxq->rxrearm_start == 0) ?
73 (rxq->nb_rx_desc - 1) : (rxq->rxrearm_start - 1));
76 /* Update the tail pointer on the NIC */
77 I40E_PCI_REG_WRITE_RELAXED(rxq->qrx_tail, rx_id);
81 desc_to_olflags_v(struct i40e_rx_queue *rxq, uint64x2_t descs[4],
82 struct rte_mbuf **rx_pkts)
84 uint32x4_t vlan0, vlan1, rss, l3_l4e;
85 const uint64x2_t mbuf_init = {rxq->mbuf_initializer, 0};
86 uint64x2_t rearm0, rearm1, rearm2, rearm3;
88 /* mask everything except RSS, flow director and VLAN flags
89 * bit2 is for VLAN tag, bit11 for flow director indication
90 * bit13:12 for RSS indication.
92 const uint32x4_t rss_vlan_msk = {
93 0x1c03804, 0x1c03804, 0x1c03804, 0x1c03804};
95 const uint32x4_t cksum_mask = {
96 PKT_RX_IP_CKSUM_GOOD | PKT_RX_IP_CKSUM_BAD |
97 PKT_RX_L4_CKSUM_GOOD | PKT_RX_L4_CKSUM_BAD |
98 PKT_RX_OUTER_IP_CKSUM_BAD,
99 PKT_RX_IP_CKSUM_GOOD | PKT_RX_IP_CKSUM_BAD |
100 PKT_RX_L4_CKSUM_GOOD | PKT_RX_L4_CKSUM_BAD |
101 PKT_RX_OUTER_IP_CKSUM_BAD,
102 PKT_RX_IP_CKSUM_GOOD | PKT_RX_IP_CKSUM_BAD |
103 PKT_RX_L4_CKSUM_GOOD | PKT_RX_L4_CKSUM_BAD |
104 PKT_RX_OUTER_IP_CKSUM_BAD,
105 PKT_RX_IP_CKSUM_GOOD | PKT_RX_IP_CKSUM_BAD |
106 PKT_RX_L4_CKSUM_GOOD | PKT_RX_L4_CKSUM_BAD |
107 PKT_RX_OUTER_IP_CKSUM_BAD};
109 /* map rss and vlan type to rss hash and vlan flag */
110 const uint8x16_t vlan_flags = {
112 PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED, 0, 0, 0,
116 const uint8x16_t rss_flags = {
117 0, PKT_RX_FDIR, 0, 0,
118 0, 0, PKT_RX_RSS_HASH, PKT_RX_RSS_HASH | PKT_RX_FDIR,
122 const uint8x16_t l3_l4e_flags = {
123 (PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD) >> 1,
124 PKT_RX_IP_CKSUM_BAD >> 1,
125 (PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_BAD) >> 1,
126 (PKT_RX_L4_CKSUM_BAD | PKT_RX_IP_CKSUM_BAD) >> 1,
127 (PKT_RX_IP_CKSUM_GOOD | PKT_RX_OUTER_IP_CKSUM_BAD) >> 1,
128 (PKT_RX_OUTER_IP_CKSUM_BAD | PKT_RX_IP_CKSUM_BAD) >> 1,
129 (PKT_RX_IP_CKSUM_GOOD | PKT_RX_OUTER_IP_CKSUM_BAD |
130 PKT_RX_L4_CKSUM_BAD) >> 1,
131 (PKT_RX_OUTER_IP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD |
132 PKT_RX_IP_CKSUM_BAD) >> 1,
133 0, 0, 0, 0, 0, 0, 0, 0};
135 vlan0 = vzipq_u32(vreinterpretq_u32_u64(descs[0]),
136 vreinterpretq_u32_u64(descs[2])).val[1];
137 vlan1 = vzipq_u32(vreinterpretq_u32_u64(descs[1]),
138 vreinterpretq_u32_u64(descs[3])).val[1];
139 vlan0 = vzipq_u32(vlan0, vlan1).val[0];
141 vlan1 = vandq_u32(vlan0, rss_vlan_msk);
142 vlan0 = vreinterpretq_u32_u8(vqtbl1q_u8(vlan_flags,
143 vreinterpretq_u8_u32(vlan1)));
145 rss = vshrq_n_u32(vlan1, 11);
146 rss = vreinterpretq_u32_u8(vqtbl1q_u8(rss_flags,
147 vreinterpretq_u8_u32(rss)));
149 l3_l4e = vshrq_n_u32(vlan1, 22);
150 l3_l4e = vreinterpretq_u32_u8(vqtbl1q_u8(l3_l4e_flags,
151 vreinterpretq_u8_u32(l3_l4e)));
152 /* then we shift left 1 bit */
153 l3_l4e = vshlq_n_u32(l3_l4e, 1);
154 /* we need to mask out the reduntant bits */
155 l3_l4e = vandq_u32(l3_l4e, cksum_mask);
157 vlan0 = vorrq_u32(vlan0, rss);
158 vlan0 = vorrq_u32(vlan0, l3_l4e);
160 rearm0 = vsetq_lane_u64(vgetq_lane_u32(vlan0, 0), mbuf_init, 1);
161 rearm1 = vsetq_lane_u64(vgetq_lane_u32(vlan0, 1), mbuf_init, 1);
162 rearm2 = vsetq_lane_u64(vgetq_lane_u32(vlan0, 2), mbuf_init, 1);
163 rearm3 = vsetq_lane_u64(vgetq_lane_u32(vlan0, 3), mbuf_init, 1);
165 vst1q_u64((uint64_t *)&rx_pkts[0]->rearm_data, rearm0);
166 vst1q_u64((uint64_t *)&rx_pkts[1]->rearm_data, rearm1);
167 vst1q_u64((uint64_t *)&rx_pkts[2]->rearm_data, rearm2);
168 vst1q_u64((uint64_t *)&rx_pkts[3]->rearm_data, rearm3);
171 #define PKTLEN_SHIFT 10
172 #define I40E_UINT16_BIT (CHAR_BIT * sizeof(uint16_t))
175 desc_to_ptype_v(uint64x2_t descs[4], struct rte_mbuf **__rte_restrict rx_pkts,
176 uint32_t *__rte_restrict ptype_tbl)
182 for (i = 0; i < 4; i++) {
183 tmp = vreinterpretq_u8_u64(vshrq_n_u64(descs[i], 30));
184 ptype = vgetq_lane_u8(tmp, 8);
185 rx_pkts[i]->packet_type = ptype_tbl[ptype];
191 * vPMD raw receive routine, only accept(nb_pkts >= RTE_I40E_DESCS_PER_LOOP)
194 * - nb_pkts < RTE_I40E_DESCS_PER_LOOP, just return no packet
195 * - floor align nb_pkts to a RTE_I40E_DESCS_PER_LOOP power-of-two
197 static inline uint16_t
198 _recv_raw_pkts_vec(struct i40e_rx_queue *__rte_restrict rxq,
199 struct rte_mbuf **__rte_restrict rx_pkts,
200 uint16_t nb_pkts, uint8_t *split_packet)
202 volatile union i40e_rx_desc *rxdp;
203 struct i40e_rx_entry *sw_ring;
204 uint16_t nb_pkts_recd;
206 uint32_t *ptype_tbl = rxq->vsi->adapter->ptype_tbl;
208 /* mask to shuffle from desc. to mbuf */
209 uint8x16_t shuf_msk = {
210 0xFF, 0xFF, /* pkt_type set as unknown */
211 0xFF, 0xFF, /* pkt_type set as unknown */
212 14, 15, /* octet 15~14, low 16 bits pkt_len */
213 0xFF, 0xFF, /* skip high 16 bits pkt_len, zero out */
214 14, 15, /* octet 15~14, 16 bits data_len */
215 2, 3, /* octet 2~3, low 16 bits vlan_macip */
216 4, 5, 6, 7 /* octet 4~7, 32bits rss */
219 uint8x16_t eop_check = {
220 0x02, 0x00, 0x02, 0x00,
221 0x02, 0x00, 0x02, 0x00,
222 0x00, 0x00, 0x00, 0x00,
223 0x00, 0x00, 0x00, 0x00
226 uint16x8_t crc_adjust = {
227 0, 0, /* ignore pkt_type field */
228 rxq->crc_len, /* sub crc on pkt_len */
229 0, /* ignore high-16bits of pkt_len */
230 rxq->crc_len, /* sub crc on data_len */
231 0, 0, 0 /* ignore non-length fields */
234 /* nb_pkts has to be floor-aligned to RTE_I40E_DESCS_PER_LOOP */
235 nb_pkts = RTE_ALIGN_FLOOR(nb_pkts, RTE_I40E_DESCS_PER_LOOP);
237 /* Just the act of getting into the function from the application is
238 * going to cost about 7 cycles
240 rxdp = rxq->rx_ring + rxq->rx_tail;
242 rte_prefetch_non_temporal(rxdp);
244 /* See if we need to rearm the RX queue - gives the prefetch a bit
247 if (rxq->rxrearm_nb > RTE_I40E_RXQ_REARM_THRESH)
250 /* Before we start moving massive data around, check to see if
251 * there is actually a packet available
253 if (!(rxdp->wb.qword1.status_error_len &
254 rte_cpu_to_le_32(1 << I40E_RX_DESC_STATUS_DD_SHIFT)))
257 /* Cache is empty -> need to scan the buffer rings, but first move
258 * the next 'n' mbufs into the cache
260 sw_ring = &rxq->sw_ring[rxq->rx_tail];
262 /* A. load 4 packet in one loop
263 * [A*. mask out 4 unused dirty field in desc]
264 * B. copy 4 mbuf point from swring to rx_pkts
265 * C. calc the number of DD bits among the 4 packets
266 * [C*. extract the end-of-packet bit, if requested]
267 * D. fill info. from desc to mbuf
270 for (pos = 0, nb_pkts_recd = 0; pos < nb_pkts;
271 pos += RTE_I40E_DESCS_PER_LOOP,
272 rxdp += RTE_I40E_DESCS_PER_LOOP) {
273 uint64x2_t descs[RTE_I40E_DESCS_PER_LOOP];
274 uint8x16_t pkt_mb1, pkt_mb2, pkt_mb3, pkt_mb4;
275 uint16x8x2_t sterr_tmp1, sterr_tmp2;
276 uint64x2_t mbp1, mbp2;
281 int32x4_t len_shl = {0, 0, 0, PKTLEN_SHIFT};
283 /* B.1 load 2 mbuf point */
284 mbp1 = vld1q_u64((uint64_t *)&sw_ring[pos]);
285 /* Read desc statuses backwards to avoid race condition */
286 /* A.1 load desc[3] */
287 descs[3] = vld1q_u64((uint64_t *)(rxdp + 3));
289 /* B.2 copy 2 mbuf point into rx_pkts */
290 vst1q_u64((uint64_t *)&rx_pkts[pos], mbp1);
292 /* B.1 load 2 mbuf point */
293 mbp2 = vld1q_u64((uint64_t *)&sw_ring[pos + 2]);
295 /* A.1 load desc[2-0] */
296 descs[2] = vld1q_u64((uint64_t *)(rxdp + 2));
297 descs[1] = vld1q_u64((uint64_t *)(rxdp + 1));
298 descs[0] = vld1q_u64((uint64_t *)(rxdp));
300 /* B.2 copy 2 mbuf point into rx_pkts */
301 vst1q_u64((uint64_t *)&rx_pkts[pos + 2], mbp2);
304 rte_mbuf_prefetch_part2(rx_pkts[pos]);
305 rte_mbuf_prefetch_part2(rx_pkts[pos + 1]);
306 rte_mbuf_prefetch_part2(rx_pkts[pos + 2]);
307 rte_mbuf_prefetch_part2(rx_pkts[pos + 3]);
310 /* pkt 3,4 shift the pktlen field to be 16-bit aligned*/
311 uint32x4_t len3 = vshlq_u32(vreinterpretq_u32_u64(descs[3]),
313 descs[3] = vreinterpretq_u64_u16(vsetq_lane_u16
314 (vgetq_lane_u16(vreinterpretq_u16_u32(len3), 7),
315 vreinterpretq_u16_u64(descs[3]),
317 uint32x4_t len2 = vshlq_u32(vreinterpretq_u32_u64(descs[2]),
319 descs[2] = vreinterpretq_u64_u16(vsetq_lane_u16
320 (vgetq_lane_u16(vreinterpretq_u16_u32(len2), 7),
321 vreinterpretq_u16_u64(descs[2]),
324 /* D.1 pkt 3,4 convert format from desc to pktmbuf */
325 pkt_mb4 = vqtbl1q_u8(vreinterpretq_u8_u64(descs[3]), shuf_msk);
326 pkt_mb3 = vqtbl1q_u8(vreinterpretq_u8_u64(descs[2]), shuf_msk);
328 /* C.1 4=>2 filter staterr info only */
329 sterr_tmp2 = vzipq_u16(vreinterpretq_u16_u64(descs[1]),
330 vreinterpretq_u16_u64(descs[3]));
331 /* C.1 4=>2 filter staterr info only */
332 sterr_tmp1 = vzipq_u16(vreinterpretq_u16_u64(descs[0]),
333 vreinterpretq_u16_u64(descs[2]));
335 /* C.2 get 4 pkts staterr value */
336 staterr = vzipq_u16(sterr_tmp1.val[1],
337 sterr_tmp2.val[1]).val[0];
339 desc_to_olflags_v(rxq, descs, &rx_pkts[pos]);
341 /* D.2 pkt 3,4 set in_port/nb_seg and remove crc */
342 tmp = vsubq_u16(vreinterpretq_u16_u8(pkt_mb4), crc_adjust);
343 pkt_mb4 = vreinterpretq_u8_u16(tmp);
344 tmp = vsubq_u16(vreinterpretq_u16_u8(pkt_mb3), crc_adjust);
345 pkt_mb3 = vreinterpretq_u8_u16(tmp);
347 /* pkt 1,2 shift the pktlen field to be 16-bit aligned*/
348 uint32x4_t len1 = vshlq_u32(vreinterpretq_u32_u64(descs[1]),
350 descs[1] = vreinterpretq_u64_u16(vsetq_lane_u16
351 (vgetq_lane_u16(vreinterpretq_u16_u32(len1), 7),
352 vreinterpretq_u16_u64(descs[1]),
354 uint32x4_t len0 = vshlq_u32(vreinterpretq_u32_u64(descs[0]),
356 descs[0] = vreinterpretq_u64_u16(vsetq_lane_u16
357 (vgetq_lane_u16(vreinterpretq_u16_u32(len0), 7),
358 vreinterpretq_u16_u64(descs[0]),
361 /* D.1 pkt 1,2 convert format from desc to pktmbuf */
362 pkt_mb2 = vqtbl1q_u8(vreinterpretq_u8_u64(descs[1]), shuf_msk);
363 pkt_mb1 = vqtbl1q_u8(vreinterpretq_u8_u64(descs[0]), shuf_msk);
365 /* D.3 copy final 3,4 data to rx_pkts */
366 vst1q_u8((void *)&rx_pkts[pos + 3]->rx_descriptor_fields1,
368 vst1q_u8((void *)&rx_pkts[pos + 2]->rx_descriptor_fields1,
371 /* D.2 pkt 1,2 set in_port/nb_seg and remove crc */
372 tmp = vsubq_u16(vreinterpretq_u16_u8(pkt_mb2), crc_adjust);
373 pkt_mb2 = vreinterpretq_u8_u16(tmp);
374 tmp = vsubq_u16(vreinterpretq_u16_u8(pkt_mb1), crc_adjust);
375 pkt_mb1 = vreinterpretq_u8_u16(tmp);
377 /* C* extract and record EOP bit */
379 uint8x16_t eop_shuf_mask = {
380 0x00, 0x02, 0x04, 0x06,
381 0xFF, 0xFF, 0xFF, 0xFF,
382 0xFF, 0xFF, 0xFF, 0xFF,
383 0xFF, 0xFF, 0xFF, 0xFF};
386 /* and with mask to extract bits, flipping 1-0 */
387 eop_bits = vmvnq_u8(vreinterpretq_u8_u16(staterr));
388 eop_bits = vandq_u8(eop_bits, eop_check);
389 /* the staterr values are not in order, as the count
390 * of dd bits doesn't care. However, for end of
391 * packet tracking, we do care, so shuffle. This also
392 * compresses the 32-bit values to 8-bit
394 eop_bits = vqtbl1q_u8(eop_bits, eop_shuf_mask);
396 /* store the resulting 32-bit value */
397 vst1q_lane_u32((uint32_t *)split_packet,
398 vreinterpretq_u32_u8(eop_bits), 0);
399 split_packet += RTE_I40E_DESCS_PER_LOOP;
401 /* zero-out next pointers */
402 rx_pkts[pos]->next = NULL;
403 rx_pkts[pos + 1]->next = NULL;
404 rx_pkts[pos + 2]->next = NULL;
405 rx_pkts[pos + 3]->next = NULL;
408 staterr = vshlq_n_u16(staterr, I40E_UINT16_BIT - 1);
409 staterr = vreinterpretq_u16_s16(
410 vshrq_n_s16(vreinterpretq_s16_u16(staterr),
411 I40E_UINT16_BIT - 1));
412 stat = ~vgetq_lane_u64(vreinterpretq_u64_u16(staterr), 0);
414 rte_prefetch_non_temporal(rxdp + RTE_I40E_DESCS_PER_LOOP);
416 /* D.3 copy final 1,2 data to rx_pkts */
417 vst1q_u8((void *)&rx_pkts[pos + 1]->rx_descriptor_fields1,
419 vst1q_u8((void *)&rx_pkts[pos]->rx_descriptor_fields1,
421 desc_to_ptype_v(descs, &rx_pkts[pos], ptype_tbl);
422 /* C.4 calc avaialbe number of desc */
423 if (unlikely(stat == 0)) {
424 nb_pkts_recd += RTE_I40E_DESCS_PER_LOOP;
426 nb_pkts_recd += __builtin_ctzl(stat) / I40E_UINT16_BIT;
431 /* Update our internal tail pointer */
432 rxq->rx_tail = (uint16_t)(rxq->rx_tail + nb_pkts_recd);
433 rxq->rx_tail = (uint16_t)(rxq->rx_tail & (rxq->nb_rx_desc - 1));
434 rxq->rxrearm_nb = (uint16_t)(rxq->rxrearm_nb + nb_pkts_recd);
441 * - nb_pkts < RTE_I40E_DESCS_PER_LOOP, just return no packet
442 * - nb_pkts > RTE_I40E_VPMD_RX_BURST, only scan RTE_I40E_VPMD_RX_BURST
446 i40e_recv_pkts_vec(void *__rte_restrict rx_queue,
447 struct rte_mbuf **__rte_restrict rx_pkts, uint16_t nb_pkts)
449 return _recv_raw_pkts_vec(rx_queue, rx_pkts, nb_pkts, NULL);
453 * vPMD receive routine that reassembles single burst of 32 scattered packets
456 * - nb_pkts < RTE_I40E_DESCS_PER_LOOP, just return no packet
459 i40e_recv_scattered_burst_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
463 struct i40e_rx_queue *rxq = rx_queue;
464 uint8_t split_flags[RTE_I40E_VPMD_RX_BURST] = {0};
466 /* get some new buffers */
467 uint16_t nb_bufs = _recv_raw_pkts_vec(rxq, rx_pkts, nb_pkts,
472 /* happy day case, full burst + no packets to be joined */
473 const uint64_t *split_fl64 = (uint64_t *)split_flags;
475 if (rxq->pkt_first_seg == NULL &&
476 split_fl64[0] == 0 && split_fl64[1] == 0 &&
477 split_fl64[2] == 0 && split_fl64[3] == 0)
480 /* reassemble any packets that need reassembly*/
483 if (rxq->pkt_first_seg == NULL) {
484 /* find the first split flag, and only reassemble then*/
485 while (i < nb_bufs && !split_flags[i])
489 rxq->pkt_first_seg = rx_pkts[i];
491 return i + reassemble_packets(rxq, &rx_pkts[i], nb_bufs - i,
496 * vPMD receive routine that reassembles scattered packets.
499 i40e_recv_scattered_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
504 while (nb_pkts > RTE_I40E_VPMD_RX_BURST) {
507 burst = i40e_recv_scattered_burst_vec(rx_queue,
509 RTE_I40E_VPMD_RX_BURST);
512 if (burst < RTE_I40E_VPMD_RX_BURST)
516 return retval + i40e_recv_scattered_burst_vec(rx_queue,
522 vtx1(volatile struct i40e_tx_desc *txdp,
523 struct rte_mbuf *pkt, uint64_t flags)
525 uint64_t high_qw = (I40E_TX_DESC_DTYPE_DATA |
526 ((uint64_t)flags << I40E_TXD_QW1_CMD_SHIFT) |
527 ((uint64_t)pkt->data_len << I40E_TXD_QW1_TX_BUF_SZ_SHIFT));
529 uint64x2_t descriptor = {pkt->buf_iova + pkt->data_off, high_qw};
530 vst1q_u64((uint64_t *)txdp, descriptor);
534 vtx(volatile struct i40e_tx_desc *txdp, struct rte_mbuf **pkt,
535 uint16_t nb_pkts, uint64_t flags)
539 for (i = 0; i < nb_pkts; ++i, ++txdp, ++pkt)
540 vtx1(txdp, *pkt, flags);
544 i40e_xmit_fixed_burst_vec(void *__rte_restrict tx_queue,
545 struct rte_mbuf **__rte_restrict tx_pkts, uint16_t nb_pkts)
547 struct i40e_tx_queue *txq = (struct i40e_tx_queue *)tx_queue;
548 volatile struct i40e_tx_desc *txdp;
549 struct i40e_tx_entry *txep;
550 uint16_t n, nb_commit, tx_id;
551 uint64_t flags = I40E_TD_CMD;
552 uint64_t rs = I40E_TX_DESC_CMD_RS | I40E_TD_CMD;
555 /* cross rx_thresh boundary is not allowed */
556 nb_pkts = RTE_MIN(nb_pkts, txq->tx_rs_thresh);
558 if (txq->nb_tx_free < txq->tx_free_thresh)
559 i40e_tx_free_bufs(txq);
561 nb_commit = nb_pkts = (uint16_t)RTE_MIN(txq->nb_tx_free, nb_pkts);
562 if (unlikely(nb_pkts == 0))
565 tx_id = txq->tx_tail;
566 txdp = &txq->tx_ring[tx_id];
567 txep = &txq->sw_ring[tx_id];
569 txq->nb_tx_free = (uint16_t)(txq->nb_tx_free - nb_pkts);
571 n = (uint16_t)(txq->nb_tx_desc - tx_id);
572 if (nb_commit >= n) {
573 tx_backlog_entry(txep, tx_pkts, n);
575 for (i = 0; i < n - 1; ++i, ++tx_pkts, ++txdp)
576 vtx1(txdp, *tx_pkts, flags);
578 vtx1(txdp, *tx_pkts++, rs);
580 nb_commit = (uint16_t)(nb_commit - n);
583 txq->tx_next_rs = (uint16_t)(txq->tx_rs_thresh - 1);
585 /* avoid reach the end of ring */
586 txdp = &txq->tx_ring[tx_id];
587 txep = &txq->sw_ring[tx_id];
590 tx_backlog_entry(txep, tx_pkts, nb_commit);
592 vtx(txdp, tx_pkts, nb_commit, flags);
594 tx_id = (uint16_t)(tx_id + nb_commit);
595 if (tx_id > txq->tx_next_rs) {
596 txq->tx_ring[txq->tx_next_rs].cmd_type_offset_bsz |=
597 rte_cpu_to_le_64(((uint64_t)I40E_TX_DESC_CMD_RS) <<
598 I40E_TXD_QW1_CMD_SHIFT);
600 (uint16_t)(txq->tx_next_rs + txq->tx_rs_thresh);
603 txq->tx_tail = tx_id;
606 I40E_PCI_REG_WRITE_RELAXED(txq->qtx_tail, tx_id);
612 i40e_rx_queue_release_mbufs_vec(struct i40e_rx_queue *rxq)
614 _i40e_rx_queue_release_mbufs_vec(rxq);
618 i40e_rxq_vec_setup(struct i40e_rx_queue *rxq)
620 return i40e_rxq_vec_setup_default(rxq);
624 i40e_txq_vec_setup(struct i40e_tx_queue __rte_unused *txq)
630 i40e_rx_vec_dev_conf_condition_check(struct rte_eth_dev *dev)
632 return i40e_rx_vec_dev_conf_condition_check_default(dev);