4 * Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * * Neither the name of Intel Corporation nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 #include <rte_ethdev.h>
36 #include <rte_malloc.h>
38 #include "base/i40e_prototype.h"
39 #include "base/i40e_type.h"
40 #include "i40e_ethdev.h"
41 #include "i40e_rxtx.h"
42 #include "i40e_rxtx_vec_common.h"
44 #include <tmmintrin.h>
46 #ifndef __INTEL_COMPILER
47 #pragma GCC diagnostic ignored "-Wcast-qual"
51 i40e_rxq_rearm(struct i40e_rx_queue *rxq)
55 volatile union i40e_rx_desc *rxdp;
56 struct i40e_rx_entry *rxep = &rxq->sw_ring[rxq->rxrearm_start];
57 struct rte_mbuf *mb0, *mb1;
58 __m128i hdr_room = _mm_set_epi64x(RTE_PKTMBUF_HEADROOM,
59 RTE_PKTMBUF_HEADROOM);
60 __m128i dma_addr0, dma_addr1;
62 rxdp = rxq->rx_ring + rxq->rxrearm_start;
64 /* Pull 'n' more MBUFs into the software ring */
65 if (rte_mempool_get_bulk(rxq->mp,
67 RTE_I40E_RXQ_REARM_THRESH) < 0) {
68 if (rxq->rxrearm_nb + RTE_I40E_RXQ_REARM_THRESH >=
70 dma_addr0 = _mm_setzero_si128();
71 for (i = 0; i < RTE_I40E_DESCS_PER_LOOP; i++) {
72 rxep[i].mbuf = &rxq->fake_mbuf;
73 _mm_store_si128((__m128i *)&rxdp[i].read,
77 rte_eth_devices[rxq->port_id].data->rx_mbuf_alloc_failed +=
78 RTE_I40E_RXQ_REARM_THRESH;
82 /* Initialize the mbufs in vector, process 2 mbufs in one loop */
83 for (i = 0; i < RTE_I40E_RXQ_REARM_THRESH; i += 2, rxep += 2) {
84 __m128i vaddr0, vaddr1;
90 /* Flush mbuf with pkt template.
91 * Data to be rearmed is 6 bytes long.
92 * Though, RX will overwrite ol_flags that are coming next
93 * anyway. So overwrite whole 8 bytes with one load:
94 * 6 bytes of rearm_data plus first 2 bytes of ol_flags.
96 p0 = (uintptr_t)&mb0->rearm_data;
97 *(uint64_t *)p0 = rxq->mbuf_initializer;
98 p1 = (uintptr_t)&mb1->rearm_data;
99 *(uint64_t *)p1 = rxq->mbuf_initializer;
101 /* load buf_addr(lo 64bit) and buf_physaddr(hi 64bit) */
102 vaddr0 = _mm_loadu_si128((__m128i *)&mb0->buf_addr);
103 vaddr1 = _mm_loadu_si128((__m128i *)&mb1->buf_addr);
105 /* convert pa to dma_addr hdr/data */
106 dma_addr0 = _mm_unpackhi_epi64(vaddr0, vaddr0);
107 dma_addr1 = _mm_unpackhi_epi64(vaddr1, vaddr1);
109 /* add headroom to pa values */
110 dma_addr0 = _mm_add_epi64(dma_addr0, hdr_room);
111 dma_addr1 = _mm_add_epi64(dma_addr1, hdr_room);
113 /* flush desc with pa dma_addr */
114 _mm_store_si128((__m128i *)&rxdp++->read, dma_addr0);
115 _mm_store_si128((__m128i *)&rxdp++->read, dma_addr1);
118 rxq->rxrearm_start += RTE_I40E_RXQ_REARM_THRESH;
119 if (rxq->rxrearm_start >= rxq->nb_rx_desc)
120 rxq->rxrearm_start = 0;
122 rxq->rxrearm_nb -= RTE_I40E_RXQ_REARM_THRESH;
124 rx_id = (uint16_t)((rxq->rxrearm_start == 0) ?
125 (rxq->nb_rx_desc - 1) : (rxq->rxrearm_start - 1));
127 /* Update the tail pointer on the NIC */
128 I40E_PCI_REG_WRITE(rxq->qrx_tail, rx_id);
131 /* Handling the offload flags (olflags) field takes computation
132 * time when receiving packets. Therefore we provide a flag to disable
133 * the processing of the olflags field when they are not needed. This
134 * gives improved performance, at the cost of losing the offload info
135 * in the received packet
137 #ifdef RTE_LIBRTE_I40E_RX_OLFLAGS_ENABLE
140 desc_to_olflags_v(__m128i descs[4], struct rte_mbuf **rx_pkts)
142 __m128i vlan0, vlan1, rss, l3_l4e;
144 /* mask everything except RSS, flow director and VLAN flags
145 * bit2 is for VLAN tag, bit11 for flow director indication
146 * bit13:12 for RSS indication.
148 const __m128i rss_vlan_msk = _mm_set_epi32(
149 0x1c03804, 0x1c03804, 0x1c03804, 0x1c03804);
151 const __m128i cksum_mask = _mm_set_epi32(
152 PKT_RX_IP_CKSUM_GOOD | PKT_RX_IP_CKSUM_BAD |
153 PKT_RX_L4_CKSUM_GOOD | PKT_RX_L4_CKSUM_BAD |
154 PKT_RX_EIP_CKSUM_BAD,
155 PKT_RX_IP_CKSUM_GOOD | PKT_RX_IP_CKSUM_BAD |
156 PKT_RX_L4_CKSUM_GOOD | PKT_RX_L4_CKSUM_BAD |
157 PKT_RX_EIP_CKSUM_BAD,
158 PKT_RX_IP_CKSUM_GOOD | PKT_RX_IP_CKSUM_BAD |
159 PKT_RX_L4_CKSUM_GOOD | PKT_RX_L4_CKSUM_BAD |
160 PKT_RX_EIP_CKSUM_BAD,
161 PKT_RX_IP_CKSUM_GOOD | PKT_RX_IP_CKSUM_BAD |
162 PKT_RX_L4_CKSUM_GOOD | PKT_RX_L4_CKSUM_BAD |
163 PKT_RX_EIP_CKSUM_BAD);
165 /* map rss and vlan type to rss hash and vlan flag */
166 const __m128i vlan_flags = _mm_set_epi8(0, 0, 0, 0,
168 0, 0, 0, PKT_RX_VLAN_PKT | PKT_RX_VLAN_STRIPPED,
171 const __m128i rss_flags = _mm_set_epi8(0, 0, 0, 0,
173 PKT_RX_RSS_HASH | PKT_RX_FDIR, PKT_RX_RSS_HASH, 0, 0,
174 0, 0, PKT_RX_FDIR, 0);
176 const __m128i l3_l4e_flags = _mm_set_epi8(0, 0, 0, 0, 0, 0, 0, 0,
177 /* shift right 1 bit to make sure it not exceed 255 */
178 (PKT_RX_EIP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD |
179 PKT_RX_IP_CKSUM_BAD) >> 1,
180 (PKT_RX_IP_CKSUM_GOOD | PKT_RX_EIP_CKSUM_BAD |
181 PKT_RX_L4_CKSUM_BAD) >> 1,
182 (PKT_RX_EIP_CKSUM_BAD | PKT_RX_IP_CKSUM_BAD) >> 1,
183 (PKT_RX_IP_CKSUM_GOOD | PKT_RX_EIP_CKSUM_BAD) >> 1,
184 (PKT_RX_L4_CKSUM_BAD | PKT_RX_IP_CKSUM_BAD) >> 1,
185 (PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_BAD) >> 1,
186 PKT_RX_IP_CKSUM_BAD >> 1,
187 (PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD) >> 1);
189 vlan0 = _mm_unpackhi_epi32(descs[0], descs[1]);
190 vlan1 = _mm_unpackhi_epi32(descs[2], descs[3]);
191 vlan0 = _mm_unpacklo_epi64(vlan0, vlan1);
193 vlan1 = _mm_and_si128(vlan0, rss_vlan_msk);
194 vlan0 = _mm_shuffle_epi8(vlan_flags, vlan1);
196 rss = _mm_srli_epi32(vlan1, 11);
197 rss = _mm_shuffle_epi8(rss_flags, rss);
199 l3_l4e = _mm_srli_epi32(vlan1, 22);
200 l3_l4e = _mm_shuffle_epi8(l3_l4e_flags, l3_l4e);
201 /* then we shift left 1 bit */
202 l3_l4e = _mm_slli_epi32(l3_l4e, 1);
203 /* we need to mask out the reduntant bits */
204 l3_l4e = _mm_and_si128(l3_l4e, cksum_mask);
206 vlan0 = _mm_or_si128(vlan0, rss);
207 vlan0 = _mm_or_si128(vlan0, l3_l4e);
209 rx_pkts[0]->ol_flags = _mm_extract_epi16(vlan0, 0);
210 rx_pkts[1]->ol_flags = _mm_extract_epi16(vlan0, 2);
211 rx_pkts[2]->ol_flags = _mm_extract_epi16(vlan0, 4);
212 rx_pkts[3]->ol_flags = _mm_extract_epi16(vlan0, 6);
215 #define desc_to_olflags_v(desc, rx_pkts) do {} while (0)
218 #define PKTLEN_SHIFT 10
221 desc_to_ptype_v(__m128i descs[4], struct rte_mbuf **rx_pkts)
223 __m128i ptype0 = _mm_unpackhi_epi64(descs[0], descs[1]);
224 __m128i ptype1 = _mm_unpackhi_epi64(descs[2], descs[3]);
226 ptype0 = _mm_srli_epi64(ptype0, 30);
227 ptype1 = _mm_srli_epi64(ptype1, 30);
229 rx_pkts[0]->packet_type = i40e_rxd_pkt_type_mapping(_mm_extract_epi8(ptype0, 0));
230 rx_pkts[1]->packet_type = i40e_rxd_pkt_type_mapping(_mm_extract_epi8(ptype0, 8));
231 rx_pkts[2]->packet_type = i40e_rxd_pkt_type_mapping(_mm_extract_epi8(ptype1, 0));
232 rx_pkts[3]->packet_type = i40e_rxd_pkt_type_mapping(_mm_extract_epi8(ptype1, 8));
237 * - nb_pkts < RTE_I40E_DESCS_PER_LOOP, just return no packet
238 * - nb_pkts > RTE_I40E_VPMD_RX_BURST, only scan RTE_I40E_VPMD_RX_BURST
241 static inline uint16_t
242 _recv_raw_pkts_vec(struct i40e_rx_queue *rxq, struct rte_mbuf **rx_pkts,
243 uint16_t nb_pkts, uint8_t *split_packet)
245 volatile union i40e_rx_desc *rxdp;
246 struct i40e_rx_entry *sw_ring;
247 uint16_t nb_pkts_recd;
252 __m128i crc_adjust = _mm_set_epi16(
253 0, 0, 0, /* ignore non-length fields */
254 -rxq->crc_len, /* sub crc on data_len */
255 0, /* ignore high-16bits of pkt_len */
256 -rxq->crc_len, /* sub crc on pkt_len */
257 0, 0 /* ignore pkt_type field */
259 __m128i dd_check, eop_check;
261 /* nb_pkts shall be less equal than RTE_I40E_MAX_RX_BURST */
262 nb_pkts = RTE_MIN(nb_pkts, RTE_I40E_MAX_RX_BURST);
264 /* nb_pkts has to be floor-aligned to RTE_I40E_DESCS_PER_LOOP */
265 nb_pkts = RTE_ALIGN_FLOOR(nb_pkts, RTE_I40E_DESCS_PER_LOOP);
267 /* Just the act of getting into the function from the application is
268 * going to cost about 7 cycles
270 rxdp = rxq->rx_ring + rxq->rx_tail;
274 /* See if we need to rearm the RX queue - gives the prefetch a bit
277 if (rxq->rxrearm_nb > RTE_I40E_RXQ_REARM_THRESH)
280 /* Before we start moving massive data around, check to see if
281 * there is actually a packet available
283 if (!(rxdp->wb.qword1.status_error_len &
284 rte_cpu_to_le_32(1 << I40E_RX_DESC_STATUS_DD_SHIFT)))
287 /* 4 packets DD mask */
288 dd_check = _mm_set_epi64x(0x0000000100000001LL, 0x0000000100000001LL);
290 /* 4 packets EOP mask */
291 eop_check = _mm_set_epi64x(0x0000000200000002LL, 0x0000000200000002LL);
293 /* mask to shuffle from desc. to mbuf */
294 shuf_msk = _mm_set_epi8(
295 7, 6, 5, 4, /* octet 4~7, 32bits rss */
296 3, 2, /* octet 2~3, low 16 bits vlan_macip */
297 15, 14, /* octet 15~14, 16 bits data_len */
298 0xFF, 0xFF, /* skip high 16 bits pkt_len, zero out */
299 15, 14, /* octet 15~14, low 16 bits pkt_len */
300 0xFF, 0xFF, /* pkt_type set as unknown */
301 0xFF, 0xFF /*pkt_type set as unknown */
304 /* Cache is empty -> need to scan the buffer rings, but first move
305 * the next 'n' mbufs into the cache
307 sw_ring = &rxq->sw_ring[rxq->rx_tail];
309 /* A. load 4 packet in one loop
310 * [A*. mask out 4 unused dirty field in desc]
311 * B. copy 4 mbuf point from swring to rx_pkts
312 * C. calc the number of DD bits among the 4 packets
313 * [C*. extract the end-of-packet bit, if requested]
314 * D. fill info. from desc to mbuf
317 for (pos = 0, nb_pkts_recd = 0; pos < nb_pkts;
318 pos += RTE_I40E_DESCS_PER_LOOP,
319 rxdp += RTE_I40E_DESCS_PER_LOOP) {
320 __m128i descs[RTE_I40E_DESCS_PER_LOOP];
321 __m128i pkt_mb1, pkt_mb2, pkt_mb3, pkt_mb4;
322 __m128i zero, staterr, sterr_tmp1, sterr_tmp2;
323 __m128i mbp1, mbp2; /* two mbuf pointer in one XMM reg. */
325 /* B.1 load 1 mbuf point */
326 mbp1 = _mm_loadu_si128((__m128i *)&sw_ring[pos]);
327 /* Read desc statuses backwards to avoid race condition */
328 /* A.1 load 4 pkts desc */
329 descs[3] = _mm_loadu_si128((__m128i *)(rxdp + 3));
330 rte_compiler_barrier();
332 /* B.2 copy 2 mbuf point into rx_pkts */
333 _mm_storeu_si128((__m128i *)&rx_pkts[pos], mbp1);
335 /* B.1 load 1 mbuf point */
336 mbp2 = _mm_loadu_si128((__m128i *)&sw_ring[pos+2]);
338 descs[2] = _mm_loadu_si128((__m128i *)(rxdp + 2));
339 rte_compiler_barrier();
340 /* B.1 load 2 mbuf point */
341 descs[1] = _mm_loadu_si128((__m128i *)(rxdp + 1));
342 rte_compiler_barrier();
343 descs[0] = _mm_loadu_si128((__m128i *)(rxdp));
345 /* B.2 copy 2 mbuf point into rx_pkts */
346 _mm_storeu_si128((__m128i *)&rx_pkts[pos+2], mbp2);
349 rte_mbuf_prefetch_part2(rx_pkts[pos]);
350 rte_mbuf_prefetch_part2(rx_pkts[pos + 1]);
351 rte_mbuf_prefetch_part2(rx_pkts[pos + 2]);
352 rte_mbuf_prefetch_part2(rx_pkts[pos + 3]);
355 /* avoid compiler reorder optimization */
356 rte_compiler_barrier();
358 /* pkt 3,4 shift the pktlen field to be 16-bit aligned*/
359 const __m128i len3 = _mm_slli_epi32(descs[3], PKTLEN_SHIFT);
360 const __m128i len2 = _mm_slli_epi32(descs[2], PKTLEN_SHIFT);
362 /* merge the now-aligned packet length fields back in */
363 descs[3] = _mm_blend_epi16(descs[3], len3, 0x80);
364 descs[2] = _mm_blend_epi16(descs[2], len2, 0x80);
366 /* D.1 pkt 3,4 convert format from desc to pktmbuf */
367 pkt_mb4 = _mm_shuffle_epi8(descs[3], shuf_msk);
368 pkt_mb3 = _mm_shuffle_epi8(descs[2], shuf_msk);
370 /* C.1 4=>2 filter staterr info only */
371 sterr_tmp2 = _mm_unpackhi_epi32(descs[3], descs[2]);
372 /* C.1 4=>2 filter staterr info only */
373 sterr_tmp1 = _mm_unpackhi_epi32(descs[1], descs[0]);
375 desc_to_olflags_v(descs, &rx_pkts[pos]);
377 /* D.2 pkt 3,4 set in_port/nb_seg and remove crc */
378 pkt_mb4 = _mm_add_epi16(pkt_mb4, crc_adjust);
379 pkt_mb3 = _mm_add_epi16(pkt_mb3, crc_adjust);
381 /* pkt 1,2 shift the pktlen field to be 16-bit aligned*/
382 const __m128i len1 = _mm_slli_epi32(descs[1], PKTLEN_SHIFT);
383 const __m128i len0 = _mm_slli_epi32(descs[0], PKTLEN_SHIFT);
385 /* merge the now-aligned packet length fields back in */
386 descs[1] = _mm_blend_epi16(descs[1], len1, 0x80);
387 descs[0] = _mm_blend_epi16(descs[0], len0, 0x80);
389 /* D.1 pkt 1,2 convert format from desc to pktmbuf */
390 pkt_mb2 = _mm_shuffle_epi8(descs[1], shuf_msk);
391 pkt_mb1 = _mm_shuffle_epi8(descs[0], shuf_msk);
393 /* C.2 get 4 pkts staterr value */
394 zero = _mm_xor_si128(dd_check, dd_check);
395 staterr = _mm_unpacklo_epi32(sterr_tmp1, sterr_tmp2);
397 /* D.3 copy final 3,4 data to rx_pkts */
398 _mm_storeu_si128((void *)&rx_pkts[pos+3]->rx_descriptor_fields1,
400 _mm_storeu_si128((void *)&rx_pkts[pos+2]->rx_descriptor_fields1,
403 /* D.2 pkt 1,2 set in_port/nb_seg and remove crc */
404 pkt_mb2 = _mm_add_epi16(pkt_mb2, crc_adjust);
405 pkt_mb1 = _mm_add_epi16(pkt_mb1, crc_adjust);
407 /* C* extract and record EOP bit */
409 __m128i eop_shuf_mask = _mm_set_epi8(
410 0xFF, 0xFF, 0xFF, 0xFF,
411 0xFF, 0xFF, 0xFF, 0xFF,
412 0xFF, 0xFF, 0xFF, 0xFF,
413 0x04, 0x0C, 0x00, 0x08
416 /* and with mask to extract bits, flipping 1-0 */
417 __m128i eop_bits = _mm_andnot_si128(staterr, eop_check);
418 /* the staterr values are not in order, as the count
419 * count of dd bits doesn't care. However, for end of
420 * packet tracking, we do care, so shuffle. This also
421 * compresses the 32-bit values to 8-bit
423 eop_bits = _mm_shuffle_epi8(eop_bits, eop_shuf_mask);
424 /* store the resulting 32-bit value */
425 *(int *)split_packet = _mm_cvtsi128_si32(eop_bits);
426 split_packet += RTE_I40E_DESCS_PER_LOOP;
428 /* zero-out next pointers */
429 rx_pkts[pos]->next = NULL;
430 rx_pkts[pos + 1]->next = NULL;
431 rx_pkts[pos + 2]->next = NULL;
432 rx_pkts[pos + 3]->next = NULL;
435 /* C.3 calc available number of desc */
436 staterr = _mm_and_si128(staterr, dd_check);
437 staterr = _mm_packs_epi32(staterr, zero);
439 /* D.3 copy final 1,2 data to rx_pkts */
440 _mm_storeu_si128((void *)&rx_pkts[pos+1]->rx_descriptor_fields1,
442 _mm_storeu_si128((void *)&rx_pkts[pos]->rx_descriptor_fields1,
444 desc_to_ptype_v(descs, &rx_pkts[pos]);
445 /* C.4 calc avaialbe number of desc */
446 var = __builtin_popcountll(_mm_cvtsi128_si64(staterr));
448 if (likely(var != RTE_I40E_DESCS_PER_LOOP))
452 /* Update our internal tail pointer */
453 rxq->rx_tail = (uint16_t)(rxq->rx_tail + nb_pkts_recd);
454 rxq->rx_tail = (uint16_t)(rxq->rx_tail & (rxq->nb_rx_desc - 1));
455 rxq->rxrearm_nb = (uint16_t)(rxq->rxrearm_nb + nb_pkts_recd);
462 * - nb_pkts < RTE_I40E_DESCS_PER_LOOP, just return no packet
463 * - nb_pkts > RTE_I40E_VPMD_RX_BURST, only scan RTE_I40E_VPMD_RX_BURST
467 i40e_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
470 return _recv_raw_pkts_vec(rx_queue, rx_pkts, nb_pkts, NULL);
473 /* vPMD receive routine that reassembles scattered packets
475 * - nb_pkts < RTE_I40E_DESCS_PER_LOOP, just return no packet
476 * - nb_pkts > RTE_I40E_VPMD_RX_BURST, only scan RTE_I40E_VPMD_RX_BURST
480 i40e_recv_scattered_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
484 struct i40e_rx_queue *rxq = rx_queue;
485 uint8_t split_flags[RTE_I40E_VPMD_RX_BURST] = {0};
487 /* get some new buffers */
488 uint16_t nb_bufs = _recv_raw_pkts_vec(rxq, rx_pkts, nb_pkts,
493 /* happy day case, full burst + no packets to be joined */
494 const uint64_t *split_fl64 = (uint64_t *)split_flags;
496 if (rxq->pkt_first_seg == NULL &&
497 split_fl64[0] == 0 && split_fl64[1] == 0 &&
498 split_fl64[2] == 0 && split_fl64[3] == 0)
501 /* reassemble any packets that need reassembly*/
504 if (rxq->pkt_first_seg == NULL) {
505 /* find the first split flag, and only reassemble then*/
506 while (i < nb_bufs && !split_flags[i])
511 return i + reassemble_packets(rxq, &rx_pkts[i], nb_bufs - i,
516 vtx1(volatile struct i40e_tx_desc *txdp,
517 struct rte_mbuf *pkt, uint64_t flags)
519 uint64_t high_qw = (I40E_TX_DESC_DTYPE_DATA |
520 ((uint64_t)flags << I40E_TXD_QW1_CMD_SHIFT) |
521 ((uint64_t)pkt->data_len << I40E_TXD_QW1_TX_BUF_SZ_SHIFT));
523 __m128i descriptor = _mm_set_epi64x(high_qw,
524 pkt->buf_physaddr + pkt->data_off);
525 _mm_store_si128((__m128i *)txdp, descriptor);
529 vtx(volatile struct i40e_tx_desc *txdp,
530 struct rte_mbuf **pkt, uint16_t nb_pkts, uint64_t flags)
534 for (i = 0; i < nb_pkts; ++i, ++txdp, ++pkt)
535 vtx1(txdp, *pkt, flags);
539 i40e_xmit_fixed_burst_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
542 struct i40e_tx_queue *txq = (struct i40e_tx_queue *)tx_queue;
543 volatile struct i40e_tx_desc *txdp;
544 struct i40e_tx_entry *txep;
545 uint16_t n, nb_commit, tx_id;
546 uint64_t flags = I40E_TD_CMD;
547 uint64_t rs = I40E_TX_DESC_CMD_RS | I40E_TD_CMD;
550 /* cross rx_thresh boundary is not allowed */
551 nb_pkts = RTE_MIN(nb_pkts, txq->tx_rs_thresh);
553 if (txq->nb_tx_free < txq->tx_free_thresh)
554 i40e_tx_free_bufs(txq);
556 nb_commit = nb_pkts = (uint16_t)RTE_MIN(txq->nb_tx_free, nb_pkts);
557 if (unlikely(nb_pkts == 0))
560 tx_id = txq->tx_tail;
561 txdp = &txq->tx_ring[tx_id];
562 txep = &txq->sw_ring[tx_id];
564 txq->nb_tx_free = (uint16_t)(txq->nb_tx_free - nb_pkts);
566 n = (uint16_t)(txq->nb_tx_desc - tx_id);
567 if (nb_commit >= n) {
568 tx_backlog_entry(txep, tx_pkts, n);
570 for (i = 0; i < n - 1; ++i, ++tx_pkts, ++txdp)
571 vtx1(txdp, *tx_pkts, flags);
573 vtx1(txdp, *tx_pkts++, rs);
575 nb_commit = (uint16_t)(nb_commit - n);
578 txq->tx_next_rs = (uint16_t)(txq->tx_rs_thresh - 1);
580 /* avoid reach the end of ring */
581 txdp = &txq->tx_ring[tx_id];
582 txep = &txq->sw_ring[tx_id];
585 tx_backlog_entry(txep, tx_pkts, nb_commit);
587 vtx(txdp, tx_pkts, nb_commit, flags);
589 tx_id = (uint16_t)(tx_id + nb_commit);
590 if (tx_id > txq->tx_next_rs) {
591 txq->tx_ring[txq->tx_next_rs].cmd_type_offset_bsz |=
592 rte_cpu_to_le_64(((uint64_t)I40E_TX_DESC_CMD_RS) <<
593 I40E_TXD_QW1_CMD_SHIFT);
595 (uint16_t)(txq->tx_next_rs + txq->tx_rs_thresh);
598 txq->tx_tail = tx_id;
600 I40E_PCI_REG_WRITE(txq->qtx_tail, txq->tx_tail);
605 void __attribute__((cold))
606 i40e_rx_queue_release_mbufs_vec(struct i40e_rx_queue *rxq)
608 _i40e_rx_queue_release_mbufs_vec(rxq);
611 int __attribute__((cold))
612 i40e_rxq_vec_setup(struct i40e_rx_queue *rxq)
614 return i40e_rxq_vec_setup_default(rxq);
617 int __attribute__((cold))
618 i40e_txq_vec_setup(struct i40e_tx_queue __rte_unused *txq)
623 int __attribute__((cold))
624 i40e_rx_vec_dev_conf_condition_check(struct rte_eth_dev *dev)
626 #ifndef RTE_LIBRTE_IEEE1588
627 /* need SSE4.1 support */
628 if (!rte_cpu_get_flag_enabled(RTE_CPUFLAG_SSE4_1))
632 return i40e_rx_vec_dev_conf_condition_check_default(dev);