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.
93 p0 = (uintptr_t)&mb0->rearm_data;
94 *(uint64_t *)p0 = rxq->mbuf_initializer;
95 p1 = (uintptr_t)&mb1->rearm_data;
96 *(uint64_t *)p1 = rxq->mbuf_initializer;
98 /* load buf_addr(lo 64bit) and buf_physaddr(hi 64bit) */
99 vaddr0 = _mm_loadu_si128((__m128i *)&mb0->buf_addr);
100 vaddr1 = _mm_loadu_si128((__m128i *)&mb1->buf_addr);
102 /* convert pa to dma_addr hdr/data */
103 dma_addr0 = _mm_unpackhi_epi64(vaddr0, vaddr0);
104 dma_addr1 = _mm_unpackhi_epi64(vaddr1, vaddr1);
106 /* add headroom to pa values */
107 dma_addr0 = _mm_add_epi64(dma_addr0, hdr_room);
108 dma_addr1 = _mm_add_epi64(dma_addr1, hdr_room);
110 /* flush desc with pa dma_addr */
111 _mm_store_si128((__m128i *)&rxdp++->read, dma_addr0);
112 _mm_store_si128((__m128i *)&rxdp++->read, dma_addr1);
115 rxq->rxrearm_start += RTE_I40E_RXQ_REARM_THRESH;
116 if (rxq->rxrearm_start >= rxq->nb_rx_desc)
117 rxq->rxrearm_start = 0;
119 rxq->rxrearm_nb -= RTE_I40E_RXQ_REARM_THRESH;
121 rx_id = (uint16_t)((rxq->rxrearm_start == 0) ?
122 (rxq->nb_rx_desc - 1) : (rxq->rxrearm_start - 1));
124 /* Update the tail pointer on the NIC */
125 I40E_PCI_REG_WRITE(rxq->qrx_tail, rx_id);
128 /* Handling the offload flags (olflags) field takes computation
129 * time when receiving packets. Therefore we provide a flag to disable
130 * the processing of the olflags field when they are not needed. This
131 * gives improved performance, at the cost of losing the offload info
132 * in the received packet
134 #ifdef RTE_LIBRTE_I40E_RX_OLFLAGS_ENABLE
137 desc_to_olflags_v(__m128i descs[4], struct rte_mbuf **rx_pkts)
139 __m128i vlan0, vlan1, rss, l3_l4e;
141 /* mask everything except RSS, flow director and VLAN flags
142 * bit2 is for VLAN tag, bit11 for flow director indication
143 * bit13:12 for RSS indication.
145 const __m128i rss_vlan_msk = _mm_set_epi32(
146 0x1c03804, 0x1c03804, 0x1c03804, 0x1c03804);
148 const __m128i cksum_mask = _mm_set_epi32(
149 PKT_RX_IP_CKSUM_GOOD | PKT_RX_IP_CKSUM_BAD |
150 PKT_RX_L4_CKSUM_GOOD | PKT_RX_L4_CKSUM_BAD |
151 PKT_RX_EIP_CKSUM_BAD,
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);
162 /* map rss and vlan type to rss hash and vlan flag */
163 const __m128i vlan_flags = _mm_set_epi8(0, 0, 0, 0,
165 0, 0, 0, PKT_RX_VLAN_PKT | PKT_RX_VLAN_STRIPPED,
168 const __m128i rss_flags = _mm_set_epi8(0, 0, 0, 0,
170 PKT_RX_RSS_HASH | PKT_RX_FDIR, PKT_RX_RSS_HASH, 0, 0,
171 0, 0, PKT_RX_FDIR, 0);
173 const __m128i l3_l4e_flags = _mm_set_epi8(0, 0, 0, 0, 0, 0, 0, 0,
174 /* shift right 1 bit to make sure it not exceed 255 */
175 (PKT_RX_EIP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD |
176 PKT_RX_IP_CKSUM_BAD) >> 1,
177 (PKT_RX_IP_CKSUM_GOOD | PKT_RX_EIP_CKSUM_BAD |
178 PKT_RX_L4_CKSUM_BAD) >> 1,
179 (PKT_RX_EIP_CKSUM_BAD | PKT_RX_IP_CKSUM_BAD) >> 1,
180 (PKT_RX_IP_CKSUM_GOOD | PKT_RX_EIP_CKSUM_BAD) >> 1,
181 (PKT_RX_L4_CKSUM_BAD | PKT_RX_IP_CKSUM_BAD) >> 1,
182 (PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_BAD) >> 1,
183 PKT_RX_IP_CKSUM_BAD >> 1,
184 (PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD) >> 1);
186 vlan0 = _mm_unpackhi_epi32(descs[0], descs[1]);
187 vlan1 = _mm_unpackhi_epi32(descs[2], descs[3]);
188 vlan0 = _mm_unpacklo_epi64(vlan0, vlan1);
190 vlan1 = _mm_and_si128(vlan0, rss_vlan_msk);
191 vlan0 = _mm_shuffle_epi8(vlan_flags, vlan1);
193 rss = _mm_srli_epi32(vlan1, 11);
194 rss = _mm_shuffle_epi8(rss_flags, rss);
196 l3_l4e = _mm_srli_epi32(vlan1, 22);
197 l3_l4e = _mm_shuffle_epi8(l3_l4e_flags, l3_l4e);
198 /* then we shift left 1 bit */
199 l3_l4e = _mm_slli_epi32(l3_l4e, 1);
200 /* we need to mask out the reduntant bits */
201 l3_l4e = _mm_and_si128(l3_l4e, cksum_mask);
203 vlan0 = _mm_or_si128(vlan0, rss);
204 vlan0 = _mm_or_si128(vlan0, l3_l4e);
206 rx_pkts[0]->ol_flags = _mm_extract_epi16(vlan0, 0);
207 rx_pkts[1]->ol_flags = _mm_extract_epi16(vlan0, 2);
208 rx_pkts[2]->ol_flags = _mm_extract_epi16(vlan0, 4);
209 rx_pkts[3]->ol_flags = _mm_extract_epi16(vlan0, 6);
212 #define desc_to_olflags_v(desc, rx_pkts) do {} while (0)
215 #define PKTLEN_SHIFT 10
218 desc_to_ptype_v(__m128i descs[4], struct rte_mbuf **rx_pkts)
220 __m128i ptype0 = _mm_unpackhi_epi64(descs[0], descs[1]);
221 __m128i ptype1 = _mm_unpackhi_epi64(descs[2], descs[3]);
223 ptype0 = _mm_srli_epi64(ptype0, 30);
224 ptype1 = _mm_srli_epi64(ptype1, 30);
226 rx_pkts[0]->packet_type = i40e_rxd_pkt_type_mapping(_mm_extract_epi8(ptype0, 0));
227 rx_pkts[1]->packet_type = i40e_rxd_pkt_type_mapping(_mm_extract_epi8(ptype0, 8));
228 rx_pkts[2]->packet_type = i40e_rxd_pkt_type_mapping(_mm_extract_epi8(ptype1, 0));
229 rx_pkts[3]->packet_type = i40e_rxd_pkt_type_mapping(_mm_extract_epi8(ptype1, 8));
234 * - nb_pkts < RTE_I40E_DESCS_PER_LOOP, just return no packet
235 * - nb_pkts > RTE_I40E_VPMD_RX_BURST, only scan RTE_I40E_VPMD_RX_BURST
238 static inline uint16_t
239 _recv_raw_pkts_vec(struct i40e_rx_queue *rxq, struct rte_mbuf **rx_pkts,
240 uint16_t nb_pkts, uint8_t *split_packet)
242 volatile union i40e_rx_desc *rxdp;
243 struct i40e_rx_entry *sw_ring;
244 uint16_t nb_pkts_recd;
249 __m128i crc_adjust = _mm_set_epi16(
250 0, 0, 0, /* ignore non-length fields */
251 -rxq->crc_len, /* sub crc on data_len */
252 0, /* ignore high-16bits of pkt_len */
253 -rxq->crc_len, /* sub crc on pkt_len */
254 0, 0 /* ignore pkt_type field */
256 __m128i dd_check, eop_check;
258 /* nb_pkts shall be less equal than RTE_I40E_MAX_RX_BURST */
259 nb_pkts = RTE_MIN(nb_pkts, RTE_I40E_MAX_RX_BURST);
261 /* nb_pkts has to be floor-aligned to RTE_I40E_DESCS_PER_LOOP */
262 nb_pkts = RTE_ALIGN_FLOOR(nb_pkts, RTE_I40E_DESCS_PER_LOOP);
264 /* Just the act of getting into the function from the application is
265 * going to cost about 7 cycles
267 rxdp = rxq->rx_ring + rxq->rx_tail;
271 /* See if we need to rearm the RX queue - gives the prefetch a bit
274 if (rxq->rxrearm_nb > RTE_I40E_RXQ_REARM_THRESH)
277 /* Before we start moving massive data around, check to see if
278 * there is actually a packet available
280 if (!(rxdp->wb.qword1.status_error_len &
281 rte_cpu_to_le_32(1 << I40E_RX_DESC_STATUS_DD_SHIFT)))
284 /* 4 packets DD mask */
285 dd_check = _mm_set_epi64x(0x0000000100000001LL, 0x0000000100000001LL);
287 /* 4 packets EOP mask */
288 eop_check = _mm_set_epi64x(0x0000000200000002LL, 0x0000000200000002LL);
290 /* mask to shuffle from desc. to mbuf */
291 shuf_msk = _mm_set_epi8(
292 7, 6, 5, 4, /* octet 4~7, 32bits rss */
293 3, 2, /* octet 2~3, low 16 bits vlan_macip */
294 15, 14, /* octet 15~14, 16 bits data_len */
295 0xFF, 0xFF, /* skip high 16 bits pkt_len, zero out */
296 15, 14, /* octet 15~14, low 16 bits pkt_len */
297 0xFF, 0xFF, /* pkt_type set as unknown */
298 0xFF, 0xFF /*pkt_type set as unknown */
301 /* Cache is empty -> need to scan the buffer rings, but first move
302 * the next 'n' mbufs into the cache
304 sw_ring = &rxq->sw_ring[rxq->rx_tail];
306 /* A. load 4 packet in one loop
307 * [A*. mask out 4 unused dirty field in desc]
308 * B. copy 4 mbuf point from swring to rx_pkts
309 * C. calc the number of DD bits among the 4 packets
310 * [C*. extract the end-of-packet bit, if requested]
311 * D. fill info. from desc to mbuf
314 for (pos = 0, nb_pkts_recd = 0; pos < nb_pkts;
315 pos += RTE_I40E_DESCS_PER_LOOP,
316 rxdp += RTE_I40E_DESCS_PER_LOOP) {
317 __m128i descs[RTE_I40E_DESCS_PER_LOOP];
318 __m128i pkt_mb1, pkt_mb2, pkt_mb3, pkt_mb4;
319 __m128i zero, staterr, sterr_tmp1, sterr_tmp2;
320 __m128i mbp1, mbp2; /* two mbuf pointer in one XMM reg. */
322 /* B.1 load 1 mbuf point */
323 mbp1 = _mm_loadu_si128((__m128i *)&sw_ring[pos]);
324 /* Read desc statuses backwards to avoid race condition */
325 /* A.1 load 4 pkts desc */
326 descs[3] = _mm_loadu_si128((__m128i *)(rxdp + 3));
327 rte_compiler_barrier();
329 /* B.2 copy 2 mbuf point into rx_pkts */
330 _mm_storeu_si128((__m128i *)&rx_pkts[pos], mbp1);
332 /* B.1 load 1 mbuf point */
333 mbp2 = _mm_loadu_si128((__m128i *)&sw_ring[pos+2]);
335 descs[2] = _mm_loadu_si128((__m128i *)(rxdp + 2));
336 rte_compiler_barrier();
337 /* B.1 load 2 mbuf point */
338 descs[1] = _mm_loadu_si128((__m128i *)(rxdp + 1));
339 rte_compiler_barrier();
340 descs[0] = _mm_loadu_si128((__m128i *)(rxdp));
342 /* B.2 copy 2 mbuf point into rx_pkts */
343 _mm_storeu_si128((__m128i *)&rx_pkts[pos+2], mbp2);
346 rte_mbuf_prefetch_part2(rx_pkts[pos]);
347 rte_mbuf_prefetch_part2(rx_pkts[pos + 1]);
348 rte_mbuf_prefetch_part2(rx_pkts[pos + 2]);
349 rte_mbuf_prefetch_part2(rx_pkts[pos + 3]);
352 /* avoid compiler reorder optimization */
353 rte_compiler_barrier();
355 /* pkt 3,4 shift the pktlen field to be 16-bit aligned*/
356 const __m128i len3 = _mm_slli_epi32(descs[3], PKTLEN_SHIFT);
357 const __m128i len2 = _mm_slli_epi32(descs[2], PKTLEN_SHIFT);
359 /* merge the now-aligned packet length fields back in */
360 descs[3] = _mm_blend_epi16(descs[3], len3, 0x80);
361 descs[2] = _mm_blend_epi16(descs[2], len2, 0x80);
363 /* D.1 pkt 3,4 convert format from desc to pktmbuf */
364 pkt_mb4 = _mm_shuffle_epi8(descs[3], shuf_msk);
365 pkt_mb3 = _mm_shuffle_epi8(descs[2], shuf_msk);
367 /* C.1 4=>2 filter staterr info only */
368 sterr_tmp2 = _mm_unpackhi_epi32(descs[3], descs[2]);
369 /* C.1 4=>2 filter staterr info only */
370 sterr_tmp1 = _mm_unpackhi_epi32(descs[1], descs[0]);
372 desc_to_olflags_v(descs, &rx_pkts[pos]);
374 /* D.2 pkt 3,4 set in_port/nb_seg and remove crc */
375 pkt_mb4 = _mm_add_epi16(pkt_mb4, crc_adjust);
376 pkt_mb3 = _mm_add_epi16(pkt_mb3, crc_adjust);
378 /* pkt 1,2 shift the pktlen field to be 16-bit aligned*/
379 const __m128i len1 = _mm_slli_epi32(descs[1], PKTLEN_SHIFT);
380 const __m128i len0 = _mm_slli_epi32(descs[0], PKTLEN_SHIFT);
382 /* merge the now-aligned packet length fields back in */
383 descs[1] = _mm_blend_epi16(descs[1], len1, 0x80);
384 descs[0] = _mm_blend_epi16(descs[0], len0, 0x80);
386 /* D.1 pkt 1,2 convert format from desc to pktmbuf */
387 pkt_mb2 = _mm_shuffle_epi8(descs[1], shuf_msk);
388 pkt_mb1 = _mm_shuffle_epi8(descs[0], shuf_msk);
390 /* C.2 get 4 pkts staterr value */
391 zero = _mm_xor_si128(dd_check, dd_check);
392 staterr = _mm_unpacklo_epi32(sterr_tmp1, sterr_tmp2);
394 /* D.3 copy final 3,4 data to rx_pkts */
395 _mm_storeu_si128((void *)&rx_pkts[pos+3]->rx_descriptor_fields1,
397 _mm_storeu_si128((void *)&rx_pkts[pos+2]->rx_descriptor_fields1,
400 /* D.2 pkt 1,2 set in_port/nb_seg and remove crc */
401 pkt_mb2 = _mm_add_epi16(pkt_mb2, crc_adjust);
402 pkt_mb1 = _mm_add_epi16(pkt_mb1, crc_adjust);
404 /* C* extract and record EOP bit */
406 __m128i eop_shuf_mask = _mm_set_epi8(
407 0xFF, 0xFF, 0xFF, 0xFF,
408 0xFF, 0xFF, 0xFF, 0xFF,
409 0xFF, 0xFF, 0xFF, 0xFF,
410 0x04, 0x0C, 0x00, 0x08
413 /* and with mask to extract bits, flipping 1-0 */
414 __m128i eop_bits = _mm_andnot_si128(staterr, eop_check);
415 /* the staterr values are not in order, as the count
416 * count of dd bits doesn't care. However, for end of
417 * packet tracking, we do care, so shuffle. This also
418 * compresses the 32-bit values to 8-bit
420 eop_bits = _mm_shuffle_epi8(eop_bits, eop_shuf_mask);
421 /* store the resulting 32-bit value */
422 *(int *)split_packet = _mm_cvtsi128_si32(eop_bits);
423 split_packet += RTE_I40E_DESCS_PER_LOOP;
426 /* C.3 calc available number of desc */
427 staterr = _mm_and_si128(staterr, dd_check);
428 staterr = _mm_packs_epi32(staterr, zero);
430 /* D.3 copy final 1,2 data to rx_pkts */
431 _mm_storeu_si128((void *)&rx_pkts[pos+1]->rx_descriptor_fields1,
433 _mm_storeu_si128((void *)&rx_pkts[pos]->rx_descriptor_fields1,
435 desc_to_ptype_v(descs, &rx_pkts[pos]);
436 /* C.4 calc avaialbe number of desc */
437 var = __builtin_popcountll(_mm_cvtsi128_si64(staterr));
439 if (likely(var != RTE_I40E_DESCS_PER_LOOP))
443 /* Update our internal tail pointer */
444 rxq->rx_tail = (uint16_t)(rxq->rx_tail + nb_pkts_recd);
445 rxq->rx_tail = (uint16_t)(rxq->rx_tail & (rxq->nb_rx_desc - 1));
446 rxq->rxrearm_nb = (uint16_t)(rxq->rxrearm_nb + nb_pkts_recd);
453 * - nb_pkts < RTE_I40E_DESCS_PER_LOOP, just return no packet
454 * - nb_pkts > RTE_I40E_VPMD_RX_BURST, only scan RTE_I40E_VPMD_RX_BURST
458 i40e_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
461 return _recv_raw_pkts_vec(rx_queue, rx_pkts, nb_pkts, NULL);
464 /* vPMD receive routine that reassembles scattered packets
466 * - nb_pkts < RTE_I40E_DESCS_PER_LOOP, just return no packet
467 * - nb_pkts > RTE_I40E_VPMD_RX_BURST, only scan RTE_I40E_VPMD_RX_BURST
471 i40e_recv_scattered_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
475 struct i40e_rx_queue *rxq = rx_queue;
476 uint8_t split_flags[RTE_I40E_VPMD_RX_BURST] = {0};
478 /* get some new buffers */
479 uint16_t nb_bufs = _recv_raw_pkts_vec(rxq, rx_pkts, nb_pkts,
484 /* happy day case, full burst + no packets to be joined */
485 const uint64_t *split_fl64 = (uint64_t *)split_flags;
487 if (rxq->pkt_first_seg == NULL &&
488 split_fl64[0] == 0 && split_fl64[1] == 0 &&
489 split_fl64[2] == 0 && split_fl64[3] == 0)
492 /* reassemble any packets that need reassembly*/
495 if (rxq->pkt_first_seg == NULL) {
496 /* find the first split flag, and only reassemble then*/
497 while (i < nb_bufs && !split_flags[i])
502 return i + reassemble_packets(rxq, &rx_pkts[i], nb_bufs - i,
507 vtx1(volatile struct i40e_tx_desc *txdp,
508 struct rte_mbuf *pkt, uint64_t flags)
510 uint64_t high_qw = (I40E_TX_DESC_DTYPE_DATA |
511 ((uint64_t)flags << I40E_TXD_QW1_CMD_SHIFT) |
512 ((uint64_t)pkt->data_len << I40E_TXD_QW1_TX_BUF_SZ_SHIFT));
514 __m128i descriptor = _mm_set_epi64x(high_qw,
515 pkt->buf_physaddr + pkt->data_off);
516 _mm_store_si128((__m128i *)txdp, descriptor);
520 vtx(volatile struct i40e_tx_desc *txdp,
521 struct rte_mbuf **pkt, uint16_t nb_pkts, uint64_t flags)
525 for (i = 0; i < nb_pkts; ++i, ++txdp, ++pkt)
526 vtx1(txdp, *pkt, flags);
530 i40e_xmit_fixed_burst_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
533 struct i40e_tx_queue *txq = (struct i40e_tx_queue *)tx_queue;
534 volatile struct i40e_tx_desc *txdp;
535 struct i40e_tx_entry *txep;
536 uint16_t n, nb_commit, tx_id;
537 uint64_t flags = I40E_TD_CMD;
538 uint64_t rs = I40E_TX_DESC_CMD_RS | I40E_TD_CMD;
541 /* cross rx_thresh boundary is not allowed */
542 nb_pkts = RTE_MIN(nb_pkts, txq->tx_rs_thresh);
544 if (txq->nb_tx_free < txq->tx_free_thresh)
545 i40e_tx_free_bufs(txq);
547 nb_commit = nb_pkts = (uint16_t)RTE_MIN(txq->nb_tx_free, nb_pkts);
548 if (unlikely(nb_pkts == 0))
551 tx_id = txq->tx_tail;
552 txdp = &txq->tx_ring[tx_id];
553 txep = &txq->sw_ring[tx_id];
555 txq->nb_tx_free = (uint16_t)(txq->nb_tx_free - nb_pkts);
557 n = (uint16_t)(txq->nb_tx_desc - tx_id);
558 if (nb_commit >= n) {
559 tx_backlog_entry(txep, tx_pkts, n);
561 for (i = 0; i < n - 1; ++i, ++tx_pkts, ++txdp)
562 vtx1(txdp, *tx_pkts, flags);
564 vtx1(txdp, *tx_pkts++, rs);
566 nb_commit = (uint16_t)(nb_commit - n);
569 txq->tx_next_rs = (uint16_t)(txq->tx_rs_thresh - 1);
571 /* avoid reach the end of ring */
572 txdp = &txq->tx_ring[tx_id];
573 txep = &txq->sw_ring[tx_id];
576 tx_backlog_entry(txep, tx_pkts, nb_commit);
578 vtx(txdp, tx_pkts, nb_commit, flags);
580 tx_id = (uint16_t)(tx_id + nb_commit);
581 if (tx_id > txq->tx_next_rs) {
582 txq->tx_ring[txq->tx_next_rs].cmd_type_offset_bsz |=
583 rte_cpu_to_le_64(((uint64_t)I40E_TX_DESC_CMD_RS) <<
584 I40E_TXD_QW1_CMD_SHIFT);
586 (uint16_t)(txq->tx_next_rs + txq->tx_rs_thresh);
589 txq->tx_tail = tx_id;
591 I40E_PCI_REG_WRITE(txq->qtx_tail, txq->tx_tail);
596 void __attribute__((cold))
597 i40e_rx_queue_release_mbufs_vec(struct i40e_rx_queue *rxq)
599 _i40e_rx_queue_release_mbufs_vec(rxq);
602 int __attribute__((cold))
603 i40e_rxq_vec_setup(struct i40e_rx_queue *rxq)
605 return i40e_rxq_vec_setup_default(rxq);
608 int __attribute__((cold))
609 i40e_txq_vec_setup(struct i40e_tx_queue __rte_unused *txq)
614 int __attribute__((cold))
615 i40e_rx_vec_dev_conf_condition_check(struct rte_eth_dev *dev)
617 #ifndef RTE_LIBRTE_IEEE1588
618 /* need SSE4.1 support */
619 if (!rte_cpu_get_flag_enabled(RTE_CPUFLAG_SSE4_1))
623 return i40e_rx_vec_dev_conf_condition_check_default(dev);