1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2016 Intel Corporation
13 #include <sys/queue.h>
15 #include <rte_string_fns.h>
16 #include <rte_memzone.h>
18 #include <rte_malloc.h>
19 #include <rte_ether.h>
20 #include <rte_ethdev_driver.h>
27 #include "i40e_logs.h"
28 #include "base/i40e_prototype.h"
29 #include "base/i40e_type.h"
30 #include "i40e_ethdev.h"
31 #include "i40e_rxtx.h"
33 #define DEFAULT_TX_RS_THRESH 32
34 #define DEFAULT_TX_FREE_THRESH 32
36 #define I40E_TX_MAX_BURST 32
38 #define I40E_DMA_MEM_ALIGN 4096
40 /* Base address of the HW descriptor ring should be 128B aligned. */
41 #define I40E_RING_BASE_ALIGN 128
43 #define I40E_TXD_CMD (I40E_TX_DESC_CMD_EOP | I40E_TX_DESC_CMD_RS)
45 #ifdef RTE_LIBRTE_IEEE1588
46 #define I40E_TX_IEEE1588_TMST PKT_TX_IEEE1588_TMST
48 #define I40E_TX_IEEE1588_TMST 0
51 #define I40E_TX_CKSUM_OFFLOAD_MASK ( \
55 PKT_TX_OUTER_IP_CKSUM)
57 #define I40E_TX_OFFLOAD_MASK ( \
60 PKT_TX_OUTER_IP_CKSUM | \
64 PKT_TX_TUNNEL_MASK | \
65 I40E_TX_IEEE1588_TMST)
67 #define I40E_TX_OFFLOAD_NOTSUP_MASK \
68 (PKT_TX_OFFLOAD_MASK ^ I40E_TX_OFFLOAD_MASK)
71 i40e_rxd_to_vlan_tci(struct rte_mbuf *mb, volatile union i40e_rx_desc *rxdp)
73 if (rte_le_to_cpu_64(rxdp->wb.qword1.status_error_len) &
74 (1 << I40E_RX_DESC_STATUS_L2TAG1P_SHIFT)) {
75 mb->ol_flags |= PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED;
77 rte_le_to_cpu_16(rxdp->wb.qword0.lo_dword.l2tag1);
78 PMD_RX_LOG(DEBUG, "Descriptor l2tag1: %u",
79 rte_le_to_cpu_16(rxdp->wb.qword0.lo_dword.l2tag1));
83 #ifndef RTE_LIBRTE_I40E_16BYTE_RX_DESC
84 if (rte_le_to_cpu_16(rxdp->wb.qword2.ext_status) &
85 (1 << I40E_RX_DESC_EXT_STATUS_L2TAG2P_SHIFT)) {
86 mb->ol_flags |= PKT_RX_QINQ_STRIPPED;
87 mb->vlan_tci_outer = mb->vlan_tci;
88 mb->vlan_tci = rte_le_to_cpu_16(rxdp->wb.qword2.l2tag2_2);
89 PMD_RX_LOG(DEBUG, "Descriptor l2tag2_1: %u, l2tag2_2: %u",
90 rte_le_to_cpu_16(rxdp->wb.qword2.l2tag2_1),
91 rte_le_to_cpu_16(rxdp->wb.qword2.l2tag2_2));
93 mb->vlan_tci_outer = 0;
96 PMD_RX_LOG(DEBUG, "Mbuf vlan_tci: %u, vlan_tci_outer: %u",
97 mb->vlan_tci, mb->vlan_tci_outer);
100 /* Translate the rx descriptor status to pkt flags */
101 static inline uint64_t
102 i40e_rxd_status_to_pkt_flags(uint64_t qword)
106 /* Check if RSS_HASH */
107 flags = (((qword >> I40E_RX_DESC_STATUS_FLTSTAT_SHIFT) &
108 I40E_RX_DESC_FLTSTAT_RSS_HASH) ==
109 I40E_RX_DESC_FLTSTAT_RSS_HASH) ? PKT_RX_RSS_HASH : 0;
111 /* Check if FDIR Match */
112 flags |= (qword & (1 << I40E_RX_DESC_STATUS_FLM_SHIFT) ?
118 static inline uint64_t
119 i40e_rxd_error_to_pkt_flags(uint64_t qword)
122 uint64_t error_bits = (qword >> I40E_RXD_QW1_ERROR_SHIFT);
124 #define I40E_RX_ERR_BITS 0x3f
125 if (likely((error_bits & I40E_RX_ERR_BITS) == 0)) {
126 flags |= (PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD);
130 if (unlikely(error_bits & (1 << I40E_RX_DESC_ERROR_IPE_SHIFT)))
131 flags |= PKT_RX_IP_CKSUM_BAD;
133 flags |= PKT_RX_IP_CKSUM_GOOD;
135 if (unlikely(error_bits & (1 << I40E_RX_DESC_ERROR_L4E_SHIFT)))
136 flags |= PKT_RX_L4_CKSUM_BAD;
138 flags |= PKT_RX_L4_CKSUM_GOOD;
140 if (unlikely(error_bits & (1 << I40E_RX_DESC_ERROR_EIPE_SHIFT)))
141 flags |= PKT_RX_EIP_CKSUM_BAD;
146 /* Function to check and set the ieee1588 timesync index and get the
149 #ifdef RTE_LIBRTE_IEEE1588
150 static inline uint64_t
151 i40e_get_iee15888_flags(struct rte_mbuf *mb, uint64_t qword)
153 uint64_t pkt_flags = 0;
154 uint16_t tsyn = (qword & (I40E_RXD_QW1_STATUS_TSYNVALID_MASK
155 | I40E_RXD_QW1_STATUS_TSYNINDX_MASK))
156 >> I40E_RX_DESC_STATUS_TSYNINDX_SHIFT;
158 if ((mb->packet_type & RTE_PTYPE_L2_MASK)
159 == RTE_PTYPE_L2_ETHER_TIMESYNC)
160 pkt_flags = PKT_RX_IEEE1588_PTP;
162 pkt_flags |= PKT_RX_IEEE1588_TMST;
163 mb->timesync = tsyn & 0x03;
170 #define I40E_RX_DESC_EXT_STATUS_FLEXBH_MASK 0x03
171 #define I40E_RX_DESC_EXT_STATUS_FLEXBH_FD_ID 0x01
172 #define I40E_RX_DESC_EXT_STATUS_FLEXBH_FLEX 0x02
173 #define I40E_RX_DESC_EXT_STATUS_FLEXBL_MASK 0x03
174 #define I40E_RX_DESC_EXT_STATUS_FLEXBL_FLEX 0x01
176 static inline uint64_t
177 i40e_rxd_build_fdir(volatile union i40e_rx_desc *rxdp, struct rte_mbuf *mb)
180 #ifndef RTE_LIBRTE_I40E_16BYTE_RX_DESC
181 uint16_t flexbh, flexbl;
183 flexbh = (rte_le_to_cpu_32(rxdp->wb.qword2.ext_status) >>
184 I40E_RX_DESC_EXT_STATUS_FLEXBH_SHIFT) &
185 I40E_RX_DESC_EXT_STATUS_FLEXBH_MASK;
186 flexbl = (rte_le_to_cpu_32(rxdp->wb.qword2.ext_status) >>
187 I40E_RX_DESC_EXT_STATUS_FLEXBL_SHIFT) &
188 I40E_RX_DESC_EXT_STATUS_FLEXBL_MASK;
191 if (flexbh == I40E_RX_DESC_EXT_STATUS_FLEXBH_FD_ID) {
193 rte_le_to_cpu_32(rxdp->wb.qword3.hi_dword.fd_id);
194 flags |= PKT_RX_FDIR_ID;
195 } else if (flexbh == I40E_RX_DESC_EXT_STATUS_FLEXBH_FLEX) {
197 rte_le_to_cpu_32(rxdp->wb.qword3.hi_dword.flex_bytes_hi);
198 flags |= PKT_RX_FDIR_FLX;
200 if (flexbl == I40E_RX_DESC_EXT_STATUS_FLEXBL_FLEX) {
202 rte_le_to_cpu_32(rxdp->wb.qword3.lo_dword.flex_bytes_lo);
203 flags |= PKT_RX_FDIR_FLX;
207 rte_le_to_cpu_32(rxdp->wb.qword0.hi_dword.fd_id);
208 flags |= PKT_RX_FDIR_ID;
214 i40e_parse_tunneling_params(uint64_t ol_flags,
215 union i40e_tx_offload tx_offload,
216 uint32_t *cd_tunneling)
218 /* EIPT: External (outer) IP header type */
219 if (ol_flags & PKT_TX_OUTER_IP_CKSUM)
220 *cd_tunneling |= I40E_TX_CTX_EXT_IP_IPV4;
221 else if (ol_flags & PKT_TX_OUTER_IPV4)
222 *cd_tunneling |= I40E_TX_CTX_EXT_IP_IPV4_NO_CSUM;
223 else if (ol_flags & PKT_TX_OUTER_IPV6)
224 *cd_tunneling |= I40E_TX_CTX_EXT_IP_IPV6;
226 /* EIPLEN: External (outer) IP header length, in DWords */
227 *cd_tunneling |= (tx_offload.outer_l3_len >> 2) <<
228 I40E_TXD_CTX_QW0_EXT_IPLEN_SHIFT;
230 /* L4TUNT: L4 Tunneling Type */
231 switch (ol_flags & PKT_TX_TUNNEL_MASK) {
232 case PKT_TX_TUNNEL_IPIP:
233 /* for non UDP / GRE tunneling, set to 00b */
235 case PKT_TX_TUNNEL_VXLAN:
236 case PKT_TX_TUNNEL_GENEVE:
237 *cd_tunneling |= I40E_TXD_CTX_UDP_TUNNELING;
239 case PKT_TX_TUNNEL_GRE:
240 *cd_tunneling |= I40E_TXD_CTX_GRE_TUNNELING;
243 PMD_TX_LOG(ERR, "Tunnel type not supported");
247 /* L4TUNLEN: L4 Tunneling Length, in Words
249 * We depend on app to set rte_mbuf.l2_len correctly.
250 * For IP in GRE it should be set to the length of the GRE
252 * for MAC in GRE or MAC in UDP it should be set to the length
253 * of the GRE or UDP headers plus the inner MAC up to including
254 * its last Ethertype.
256 *cd_tunneling |= (tx_offload.l2_len >> 1) <<
257 I40E_TXD_CTX_QW0_NATLEN_SHIFT;
261 i40e_txd_enable_checksum(uint64_t ol_flags,
264 union i40e_tx_offload tx_offload)
267 if (ol_flags & PKT_TX_TUNNEL_MASK)
268 *td_offset |= (tx_offload.outer_l2_len >> 1)
269 << I40E_TX_DESC_LENGTH_MACLEN_SHIFT;
271 *td_offset |= (tx_offload.l2_len >> 1)
272 << I40E_TX_DESC_LENGTH_MACLEN_SHIFT;
274 /* Enable L3 checksum offloads */
275 if (ol_flags & PKT_TX_IP_CKSUM) {
276 *td_cmd |= I40E_TX_DESC_CMD_IIPT_IPV4_CSUM;
277 *td_offset |= (tx_offload.l3_len >> 2)
278 << I40E_TX_DESC_LENGTH_IPLEN_SHIFT;
279 } else if (ol_flags & PKT_TX_IPV4) {
280 *td_cmd |= I40E_TX_DESC_CMD_IIPT_IPV4;
281 *td_offset |= (tx_offload.l3_len >> 2)
282 << I40E_TX_DESC_LENGTH_IPLEN_SHIFT;
283 } else if (ol_flags & PKT_TX_IPV6) {
284 *td_cmd |= I40E_TX_DESC_CMD_IIPT_IPV6;
285 *td_offset |= (tx_offload.l3_len >> 2)
286 << I40E_TX_DESC_LENGTH_IPLEN_SHIFT;
289 if (ol_flags & PKT_TX_TCP_SEG) {
290 *td_cmd |= I40E_TX_DESC_CMD_L4T_EOFT_TCP;
291 *td_offset |= (tx_offload.l4_len >> 2)
292 << I40E_TX_DESC_LENGTH_L4_FC_LEN_SHIFT;
296 /* Enable L4 checksum offloads */
297 switch (ol_flags & PKT_TX_L4_MASK) {
298 case PKT_TX_TCP_CKSUM:
299 *td_cmd |= I40E_TX_DESC_CMD_L4T_EOFT_TCP;
300 *td_offset |= (sizeof(struct tcp_hdr) >> 2) <<
301 I40E_TX_DESC_LENGTH_L4_FC_LEN_SHIFT;
303 case PKT_TX_SCTP_CKSUM:
304 *td_cmd |= I40E_TX_DESC_CMD_L4T_EOFT_SCTP;
305 *td_offset |= (sizeof(struct sctp_hdr) >> 2) <<
306 I40E_TX_DESC_LENGTH_L4_FC_LEN_SHIFT;
308 case PKT_TX_UDP_CKSUM:
309 *td_cmd |= I40E_TX_DESC_CMD_L4T_EOFT_UDP;
310 *td_offset |= (sizeof(struct udp_hdr) >> 2) <<
311 I40E_TX_DESC_LENGTH_L4_FC_LEN_SHIFT;
318 /* Construct the tx flags */
319 static inline uint64_t
320 i40e_build_ctob(uint32_t td_cmd,
325 return rte_cpu_to_le_64(I40E_TX_DESC_DTYPE_DATA |
326 ((uint64_t)td_cmd << I40E_TXD_QW1_CMD_SHIFT) |
327 ((uint64_t)td_offset << I40E_TXD_QW1_OFFSET_SHIFT) |
328 ((uint64_t)size << I40E_TXD_QW1_TX_BUF_SZ_SHIFT) |
329 ((uint64_t)td_tag << I40E_TXD_QW1_L2TAG1_SHIFT));
333 i40e_xmit_cleanup(struct i40e_tx_queue *txq)
335 struct i40e_tx_entry *sw_ring = txq->sw_ring;
336 volatile struct i40e_tx_desc *txd = txq->tx_ring;
337 uint16_t last_desc_cleaned = txq->last_desc_cleaned;
338 uint16_t nb_tx_desc = txq->nb_tx_desc;
339 uint16_t desc_to_clean_to;
340 uint16_t nb_tx_to_clean;
342 desc_to_clean_to = (uint16_t)(last_desc_cleaned + txq->tx_rs_thresh);
343 if (desc_to_clean_to >= nb_tx_desc)
344 desc_to_clean_to = (uint16_t)(desc_to_clean_to - nb_tx_desc);
346 desc_to_clean_to = sw_ring[desc_to_clean_to].last_id;
347 if ((txd[desc_to_clean_to].cmd_type_offset_bsz &
348 rte_cpu_to_le_64(I40E_TXD_QW1_DTYPE_MASK)) !=
349 rte_cpu_to_le_64(I40E_TX_DESC_DTYPE_DESC_DONE)) {
350 PMD_TX_FREE_LOG(DEBUG, "TX descriptor %4u is not done "
351 "(port=%d queue=%d)", desc_to_clean_to,
352 txq->port_id, txq->queue_id);
356 if (last_desc_cleaned > desc_to_clean_to)
357 nb_tx_to_clean = (uint16_t)((nb_tx_desc - last_desc_cleaned) +
360 nb_tx_to_clean = (uint16_t)(desc_to_clean_to -
363 txd[desc_to_clean_to].cmd_type_offset_bsz = 0;
365 txq->last_desc_cleaned = desc_to_clean_to;
366 txq->nb_tx_free = (uint16_t)(txq->nb_tx_free + nb_tx_to_clean);
372 #ifdef RTE_LIBRTE_I40E_RX_ALLOW_BULK_ALLOC
373 check_rx_burst_bulk_alloc_preconditions(struct i40e_rx_queue *rxq)
375 check_rx_burst_bulk_alloc_preconditions(__rte_unused struct i40e_rx_queue *rxq)
380 #ifdef RTE_LIBRTE_I40E_RX_ALLOW_BULK_ALLOC
381 if (!(rxq->rx_free_thresh >= RTE_PMD_I40E_RX_MAX_BURST)) {
382 PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions: "
383 "rxq->rx_free_thresh=%d, "
384 "RTE_PMD_I40E_RX_MAX_BURST=%d",
385 rxq->rx_free_thresh, RTE_PMD_I40E_RX_MAX_BURST);
387 } else if (!(rxq->rx_free_thresh < rxq->nb_rx_desc)) {
388 PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions: "
389 "rxq->rx_free_thresh=%d, "
390 "rxq->nb_rx_desc=%d",
391 rxq->rx_free_thresh, rxq->nb_rx_desc);
393 } else if (rxq->nb_rx_desc % rxq->rx_free_thresh != 0) {
394 PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions: "
395 "rxq->nb_rx_desc=%d, "
396 "rxq->rx_free_thresh=%d",
397 rxq->nb_rx_desc, rxq->rx_free_thresh);
407 #ifdef RTE_LIBRTE_I40E_RX_ALLOW_BULK_ALLOC
408 #define I40E_LOOK_AHEAD 8
409 #if (I40E_LOOK_AHEAD != 8)
410 #error "PMD I40E: I40E_LOOK_AHEAD must be 8\n"
413 i40e_rx_scan_hw_ring(struct i40e_rx_queue *rxq)
415 volatile union i40e_rx_desc *rxdp;
416 struct i40e_rx_entry *rxep;
421 int32_t s[I40E_LOOK_AHEAD], nb_dd;
422 int32_t i, j, nb_rx = 0;
424 uint32_t *ptype_tbl = rxq->vsi->adapter->ptype_tbl;
426 rxdp = &rxq->rx_ring[rxq->rx_tail];
427 rxep = &rxq->sw_ring[rxq->rx_tail];
429 qword1 = rte_le_to_cpu_64(rxdp->wb.qword1.status_error_len);
430 rx_status = (qword1 & I40E_RXD_QW1_STATUS_MASK) >>
431 I40E_RXD_QW1_STATUS_SHIFT;
433 /* Make sure there is at least 1 packet to receive */
434 if (!(rx_status & (1 << I40E_RX_DESC_STATUS_DD_SHIFT)))
438 * Scan LOOK_AHEAD descriptors at a time to determine which
439 * descriptors reference packets that are ready to be received.
441 for (i = 0; i < RTE_PMD_I40E_RX_MAX_BURST; i+=I40E_LOOK_AHEAD,
442 rxdp += I40E_LOOK_AHEAD, rxep += I40E_LOOK_AHEAD) {
443 /* Read desc statuses backwards to avoid race condition */
444 for (j = I40E_LOOK_AHEAD - 1; j >= 0; j--) {
445 qword1 = rte_le_to_cpu_64(\
446 rxdp[j].wb.qword1.status_error_len);
447 s[j] = (qword1 & I40E_RXD_QW1_STATUS_MASK) >>
448 I40E_RXD_QW1_STATUS_SHIFT;
453 /* Compute how many status bits were set */
454 for (j = 0, nb_dd = 0; j < I40E_LOOK_AHEAD; j++)
455 nb_dd += s[j] & (1 << I40E_RX_DESC_STATUS_DD_SHIFT);
459 /* Translate descriptor info to mbuf parameters */
460 for (j = 0; j < nb_dd; j++) {
462 qword1 = rte_le_to_cpu_64(\
463 rxdp[j].wb.qword1.status_error_len);
464 pkt_len = ((qword1 & I40E_RXD_QW1_LENGTH_PBUF_MASK) >>
465 I40E_RXD_QW1_LENGTH_PBUF_SHIFT) - rxq->crc_len;
466 mb->data_len = pkt_len;
467 mb->pkt_len = pkt_len;
469 i40e_rxd_to_vlan_tci(mb, &rxdp[j]);
470 pkt_flags = i40e_rxd_status_to_pkt_flags(qword1);
471 pkt_flags |= i40e_rxd_error_to_pkt_flags(qword1);
473 ptype_tbl[(uint8_t)((qword1 &
474 I40E_RXD_QW1_PTYPE_MASK) >>
475 I40E_RXD_QW1_PTYPE_SHIFT)];
476 if (pkt_flags & PKT_RX_RSS_HASH)
477 mb->hash.rss = rte_le_to_cpu_32(\
478 rxdp[j].wb.qword0.hi_dword.rss);
479 if (pkt_flags & PKT_RX_FDIR)
480 pkt_flags |= i40e_rxd_build_fdir(&rxdp[j], mb);
482 #ifdef RTE_LIBRTE_IEEE1588
483 pkt_flags |= i40e_get_iee15888_flags(mb, qword1);
485 mb->ol_flags |= pkt_flags;
489 for (j = 0; j < I40E_LOOK_AHEAD; j++)
490 rxq->rx_stage[i + j] = rxep[j].mbuf;
492 if (nb_dd != I40E_LOOK_AHEAD)
496 /* Clear software ring entries */
497 for (i = 0; i < nb_rx; i++)
498 rxq->sw_ring[rxq->rx_tail + i].mbuf = NULL;
503 static inline uint16_t
504 i40e_rx_fill_from_stage(struct i40e_rx_queue *rxq,
505 struct rte_mbuf **rx_pkts,
509 struct rte_mbuf **stage = &rxq->rx_stage[rxq->rx_next_avail];
511 nb_pkts = (uint16_t)RTE_MIN(nb_pkts, rxq->rx_nb_avail);
513 for (i = 0; i < nb_pkts; i++)
514 rx_pkts[i] = stage[i];
516 rxq->rx_nb_avail = (uint16_t)(rxq->rx_nb_avail - nb_pkts);
517 rxq->rx_next_avail = (uint16_t)(rxq->rx_next_avail + nb_pkts);
523 i40e_rx_alloc_bufs(struct i40e_rx_queue *rxq)
525 volatile union i40e_rx_desc *rxdp;
526 struct i40e_rx_entry *rxep;
528 uint16_t alloc_idx, i;
532 /* Allocate buffers in bulk */
533 alloc_idx = (uint16_t)(rxq->rx_free_trigger -
534 (rxq->rx_free_thresh - 1));
535 rxep = &(rxq->sw_ring[alloc_idx]);
536 diag = rte_mempool_get_bulk(rxq->mp, (void *)rxep,
537 rxq->rx_free_thresh);
538 if (unlikely(diag != 0)) {
539 PMD_DRV_LOG(ERR, "Failed to get mbufs in bulk");
543 rxdp = &rxq->rx_ring[alloc_idx];
544 for (i = 0; i < rxq->rx_free_thresh; i++) {
545 if (likely(i < (rxq->rx_free_thresh - 1)))
546 /* Prefetch next mbuf */
547 rte_prefetch0(rxep[i + 1].mbuf);
550 rte_mbuf_refcnt_set(mb, 1);
552 mb->data_off = RTE_PKTMBUF_HEADROOM;
554 mb->port = rxq->port_id;
555 dma_addr = rte_cpu_to_le_64(\
556 rte_mbuf_data_iova_default(mb));
557 rxdp[i].read.hdr_addr = 0;
558 rxdp[i].read.pkt_addr = dma_addr;
561 /* Update rx tail regsiter */
563 I40E_PCI_REG_WRITE_RELAXED(rxq->qrx_tail, rxq->rx_free_trigger);
565 rxq->rx_free_trigger =
566 (uint16_t)(rxq->rx_free_trigger + rxq->rx_free_thresh);
567 if (rxq->rx_free_trigger >= rxq->nb_rx_desc)
568 rxq->rx_free_trigger = (uint16_t)(rxq->rx_free_thresh - 1);
573 static inline uint16_t
574 rx_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
576 struct i40e_rx_queue *rxq = (struct i40e_rx_queue *)rx_queue;
577 struct rte_eth_dev *dev;
583 if (rxq->rx_nb_avail)
584 return i40e_rx_fill_from_stage(rxq, rx_pkts, nb_pkts);
586 nb_rx = (uint16_t)i40e_rx_scan_hw_ring(rxq);
587 rxq->rx_next_avail = 0;
588 rxq->rx_nb_avail = nb_rx;
589 rxq->rx_tail = (uint16_t)(rxq->rx_tail + nb_rx);
591 if (rxq->rx_tail > rxq->rx_free_trigger) {
592 if (i40e_rx_alloc_bufs(rxq) != 0) {
595 dev = I40E_VSI_TO_ETH_DEV(rxq->vsi);
596 dev->data->rx_mbuf_alloc_failed +=
599 rxq->rx_nb_avail = 0;
600 rxq->rx_tail = (uint16_t)(rxq->rx_tail - nb_rx);
601 for (i = 0, j = rxq->rx_tail; i < nb_rx; i++, j++)
602 rxq->sw_ring[j].mbuf = rxq->rx_stage[i];
608 if (rxq->rx_tail >= rxq->nb_rx_desc)
611 if (rxq->rx_nb_avail)
612 return i40e_rx_fill_from_stage(rxq, rx_pkts, nb_pkts);
618 i40e_recv_pkts_bulk_alloc(void *rx_queue,
619 struct rte_mbuf **rx_pkts,
622 uint16_t nb_rx = 0, n, count;
624 if (unlikely(nb_pkts == 0))
627 if (likely(nb_pkts <= RTE_PMD_I40E_RX_MAX_BURST))
628 return rx_recv_pkts(rx_queue, rx_pkts, nb_pkts);
631 n = RTE_MIN(nb_pkts, RTE_PMD_I40E_RX_MAX_BURST);
632 count = rx_recv_pkts(rx_queue, &rx_pkts[nb_rx], n);
633 nb_rx = (uint16_t)(nb_rx + count);
634 nb_pkts = (uint16_t)(nb_pkts - count);
643 i40e_recv_pkts_bulk_alloc(void __rte_unused *rx_queue,
644 struct rte_mbuf __rte_unused **rx_pkts,
645 uint16_t __rte_unused nb_pkts)
649 #endif /* RTE_LIBRTE_I40E_RX_ALLOW_BULK_ALLOC */
652 i40e_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
654 struct i40e_rx_queue *rxq;
655 volatile union i40e_rx_desc *rx_ring;
656 volatile union i40e_rx_desc *rxdp;
657 union i40e_rx_desc rxd;
658 struct i40e_rx_entry *sw_ring;
659 struct i40e_rx_entry *rxe;
660 struct rte_eth_dev *dev;
661 struct rte_mbuf *rxm;
662 struct rte_mbuf *nmb;
666 uint16_t rx_packet_len;
667 uint16_t rx_id, nb_hold;
675 rx_id = rxq->rx_tail;
676 rx_ring = rxq->rx_ring;
677 sw_ring = rxq->sw_ring;
678 ptype_tbl = rxq->vsi->adapter->ptype_tbl;
680 while (nb_rx < nb_pkts) {
681 rxdp = &rx_ring[rx_id];
682 qword1 = rte_le_to_cpu_64(rxdp->wb.qword1.status_error_len);
683 rx_status = (qword1 & I40E_RXD_QW1_STATUS_MASK)
684 >> I40E_RXD_QW1_STATUS_SHIFT;
686 /* Check the DD bit first */
687 if (!(rx_status & (1 << I40E_RX_DESC_STATUS_DD_SHIFT)))
690 nmb = rte_mbuf_raw_alloc(rxq->mp);
691 if (unlikely(!nmb)) {
692 dev = I40E_VSI_TO_ETH_DEV(rxq->vsi);
693 dev->data->rx_mbuf_alloc_failed++;
699 rxe = &sw_ring[rx_id];
701 if (unlikely(rx_id == rxq->nb_rx_desc))
704 /* Prefetch next mbuf */
705 rte_prefetch0(sw_ring[rx_id].mbuf);
708 * When next RX descriptor is on a cache line boundary,
709 * prefetch the next 4 RX descriptors and next 8 pointers
712 if ((rx_id & 0x3) == 0) {
713 rte_prefetch0(&rx_ring[rx_id]);
714 rte_prefetch0(&sw_ring[rx_id]);
719 rte_cpu_to_le_64(rte_mbuf_data_iova_default(nmb));
720 rxdp->read.hdr_addr = 0;
721 rxdp->read.pkt_addr = dma_addr;
723 rx_packet_len = ((qword1 & I40E_RXD_QW1_LENGTH_PBUF_MASK) >>
724 I40E_RXD_QW1_LENGTH_PBUF_SHIFT) - rxq->crc_len;
726 rxm->data_off = RTE_PKTMBUF_HEADROOM;
727 rte_prefetch0(RTE_PTR_ADD(rxm->buf_addr, RTE_PKTMBUF_HEADROOM));
730 rxm->pkt_len = rx_packet_len;
731 rxm->data_len = rx_packet_len;
732 rxm->port = rxq->port_id;
734 i40e_rxd_to_vlan_tci(rxm, &rxd);
735 pkt_flags = i40e_rxd_status_to_pkt_flags(qword1);
736 pkt_flags |= i40e_rxd_error_to_pkt_flags(qword1);
738 ptype_tbl[(uint8_t)((qword1 &
739 I40E_RXD_QW1_PTYPE_MASK) >> I40E_RXD_QW1_PTYPE_SHIFT)];
740 if (pkt_flags & PKT_RX_RSS_HASH)
742 rte_le_to_cpu_32(rxd.wb.qword0.hi_dword.rss);
743 if (pkt_flags & PKT_RX_FDIR)
744 pkt_flags |= i40e_rxd_build_fdir(&rxd, rxm);
746 #ifdef RTE_LIBRTE_IEEE1588
747 pkt_flags |= i40e_get_iee15888_flags(rxm, qword1);
749 rxm->ol_flags |= pkt_flags;
751 rx_pkts[nb_rx++] = rxm;
753 rxq->rx_tail = rx_id;
756 * If the number of free RX descriptors is greater than the RX free
757 * threshold of the queue, advance the receive tail register of queue.
758 * Update that register with the value of the last processed RX
759 * descriptor minus 1.
761 nb_hold = (uint16_t)(nb_hold + rxq->nb_rx_hold);
762 if (nb_hold > rxq->rx_free_thresh) {
763 rx_id = (uint16_t) ((rx_id == 0) ?
764 (rxq->nb_rx_desc - 1) : (rx_id - 1));
765 I40E_PCI_REG_WRITE(rxq->qrx_tail, rx_id);
768 rxq->nb_rx_hold = nb_hold;
774 i40e_recv_scattered_pkts(void *rx_queue,
775 struct rte_mbuf **rx_pkts,
778 struct i40e_rx_queue *rxq = rx_queue;
779 volatile union i40e_rx_desc *rx_ring = rxq->rx_ring;
780 volatile union i40e_rx_desc *rxdp;
781 union i40e_rx_desc rxd;
782 struct i40e_rx_entry *sw_ring = rxq->sw_ring;
783 struct i40e_rx_entry *rxe;
784 struct rte_mbuf *first_seg = rxq->pkt_first_seg;
785 struct rte_mbuf *last_seg = rxq->pkt_last_seg;
786 struct rte_mbuf *nmb, *rxm;
787 uint16_t rx_id = rxq->rx_tail;
788 uint16_t nb_rx = 0, nb_hold = 0, rx_packet_len;
789 struct rte_eth_dev *dev;
794 uint32_t *ptype_tbl = rxq->vsi->adapter->ptype_tbl;
796 while (nb_rx < nb_pkts) {
797 rxdp = &rx_ring[rx_id];
798 qword1 = rte_le_to_cpu_64(rxdp->wb.qword1.status_error_len);
799 rx_status = (qword1 & I40E_RXD_QW1_STATUS_MASK) >>
800 I40E_RXD_QW1_STATUS_SHIFT;
802 /* Check the DD bit */
803 if (!(rx_status & (1 << I40E_RX_DESC_STATUS_DD_SHIFT)))
806 nmb = rte_mbuf_raw_alloc(rxq->mp);
807 if (unlikely(!nmb)) {
808 dev = I40E_VSI_TO_ETH_DEV(rxq->vsi);
809 dev->data->rx_mbuf_alloc_failed++;
815 rxe = &sw_ring[rx_id];
817 if (rx_id == rxq->nb_rx_desc)
820 /* Prefetch next mbuf */
821 rte_prefetch0(sw_ring[rx_id].mbuf);
824 * When next RX descriptor is on a cache line boundary,
825 * prefetch the next 4 RX descriptors and next 8 pointers
828 if ((rx_id & 0x3) == 0) {
829 rte_prefetch0(&rx_ring[rx_id]);
830 rte_prefetch0(&sw_ring[rx_id]);
836 rte_cpu_to_le_64(rte_mbuf_data_iova_default(nmb));
838 /* Set data buffer address and data length of the mbuf */
839 rxdp->read.hdr_addr = 0;
840 rxdp->read.pkt_addr = dma_addr;
841 rx_packet_len = (qword1 & I40E_RXD_QW1_LENGTH_PBUF_MASK) >>
842 I40E_RXD_QW1_LENGTH_PBUF_SHIFT;
843 rxm->data_len = rx_packet_len;
844 rxm->data_off = RTE_PKTMBUF_HEADROOM;
847 * If this is the first buffer of the received packet, set the
848 * pointer to the first mbuf of the packet and initialize its
849 * context. Otherwise, update the total length and the number
850 * of segments of the current scattered packet, and update the
851 * pointer to the last mbuf of the current packet.
855 first_seg->nb_segs = 1;
856 first_seg->pkt_len = rx_packet_len;
859 (uint16_t)(first_seg->pkt_len +
861 first_seg->nb_segs++;
862 last_seg->next = rxm;
866 * If this is not the last buffer of the received packet,
867 * update the pointer to the last mbuf of the current scattered
868 * packet and continue to parse the RX ring.
870 if (!(rx_status & (1 << I40E_RX_DESC_STATUS_EOF_SHIFT))) {
876 * This is the last buffer of the received packet. If the CRC
877 * is not stripped by the hardware:
878 * - Subtract the CRC length from the total packet length.
879 * - If the last buffer only contains the whole CRC or a part
880 * of it, free the mbuf associated to the last buffer. If part
881 * of the CRC is also contained in the previous mbuf, subtract
882 * the length of that CRC part from the data length of the
886 if (unlikely(rxq->crc_len > 0)) {
887 first_seg->pkt_len -= ETHER_CRC_LEN;
888 if (rx_packet_len <= ETHER_CRC_LEN) {
889 rte_pktmbuf_free_seg(rxm);
890 first_seg->nb_segs--;
892 (uint16_t)(last_seg->data_len -
893 (ETHER_CRC_LEN - rx_packet_len));
894 last_seg->next = NULL;
896 rxm->data_len = (uint16_t)(rx_packet_len -
900 first_seg->port = rxq->port_id;
901 first_seg->ol_flags = 0;
902 i40e_rxd_to_vlan_tci(first_seg, &rxd);
903 pkt_flags = i40e_rxd_status_to_pkt_flags(qword1);
904 pkt_flags |= i40e_rxd_error_to_pkt_flags(qword1);
905 first_seg->packet_type =
906 ptype_tbl[(uint8_t)((qword1 &
907 I40E_RXD_QW1_PTYPE_MASK) >> I40E_RXD_QW1_PTYPE_SHIFT)];
908 if (pkt_flags & PKT_RX_RSS_HASH)
909 first_seg->hash.rss =
910 rte_le_to_cpu_32(rxd.wb.qword0.hi_dword.rss);
911 if (pkt_flags & PKT_RX_FDIR)
912 pkt_flags |= i40e_rxd_build_fdir(&rxd, first_seg);
914 #ifdef RTE_LIBRTE_IEEE1588
915 pkt_flags |= i40e_get_iee15888_flags(first_seg, qword1);
917 first_seg->ol_flags |= pkt_flags;
919 /* Prefetch data of first segment, if configured to do so. */
920 rte_prefetch0(RTE_PTR_ADD(first_seg->buf_addr,
921 first_seg->data_off));
922 rx_pkts[nb_rx++] = first_seg;
926 /* Record index of the next RX descriptor to probe. */
927 rxq->rx_tail = rx_id;
928 rxq->pkt_first_seg = first_seg;
929 rxq->pkt_last_seg = last_seg;
932 * If the number of free RX descriptors is greater than the RX free
933 * threshold of the queue, advance the Receive Descriptor Tail (RDT)
934 * register. Update the RDT with the value of the last processed RX
935 * descriptor minus 1, to guarantee that the RDT register is never
936 * equal to the RDH register, which creates a "full" ring situtation
937 * from the hardware point of view.
939 nb_hold = (uint16_t)(nb_hold + rxq->nb_rx_hold);
940 if (nb_hold > rxq->rx_free_thresh) {
941 rx_id = (uint16_t)(rx_id == 0 ?
942 (rxq->nb_rx_desc - 1) : (rx_id - 1));
943 I40E_PCI_REG_WRITE(rxq->qrx_tail, rx_id);
946 rxq->nb_rx_hold = nb_hold;
951 /* Check if the context descriptor is needed for TX offloading */
952 static inline uint16_t
953 i40e_calc_context_desc(uint64_t flags)
955 static uint64_t mask = PKT_TX_OUTER_IP_CKSUM |
960 #ifdef RTE_LIBRTE_IEEE1588
961 mask |= PKT_TX_IEEE1588_TMST;
964 return (flags & mask) ? 1 : 0;
967 /* set i40e TSO context descriptor */
968 static inline uint64_t
969 i40e_set_tso_ctx(struct rte_mbuf *mbuf, union i40e_tx_offload tx_offload)
971 uint64_t ctx_desc = 0;
972 uint32_t cd_cmd, hdr_len, cd_tso_len;
974 if (!tx_offload.l4_len) {
975 PMD_DRV_LOG(DEBUG, "L4 length set to 0");
980 * in case of non tunneling packet, the outer_l2_len and
981 * outer_l3_len must be 0.
983 hdr_len = tx_offload.outer_l2_len +
984 tx_offload.outer_l3_len +
989 cd_cmd = I40E_TX_CTX_DESC_TSO;
990 cd_tso_len = mbuf->pkt_len - hdr_len;
991 ctx_desc |= ((uint64_t)cd_cmd << I40E_TXD_CTX_QW1_CMD_SHIFT) |
992 ((uint64_t)cd_tso_len <<
993 I40E_TXD_CTX_QW1_TSO_LEN_SHIFT) |
994 ((uint64_t)mbuf->tso_segsz <<
995 I40E_TXD_CTX_QW1_MSS_SHIFT);
1001 i40e_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
1003 struct i40e_tx_queue *txq;
1004 struct i40e_tx_entry *sw_ring;
1005 struct i40e_tx_entry *txe, *txn;
1006 volatile struct i40e_tx_desc *txd;
1007 volatile struct i40e_tx_desc *txr;
1008 struct rte_mbuf *tx_pkt;
1009 struct rte_mbuf *m_seg;
1010 uint32_t cd_tunneling_params;
1021 uint64_t buf_dma_addr;
1022 union i40e_tx_offload tx_offload = {0};
1025 sw_ring = txq->sw_ring;
1027 tx_id = txq->tx_tail;
1028 txe = &sw_ring[tx_id];
1030 /* Check if the descriptor ring needs to be cleaned. */
1031 if (txq->nb_tx_free < txq->tx_free_thresh)
1032 i40e_xmit_cleanup(txq);
1034 for (nb_tx = 0; nb_tx < nb_pkts; nb_tx++) {
1039 tx_pkt = *tx_pkts++;
1040 RTE_MBUF_PREFETCH_TO_FREE(txe->mbuf);
1042 ol_flags = tx_pkt->ol_flags;
1043 tx_offload.l2_len = tx_pkt->l2_len;
1044 tx_offload.l3_len = tx_pkt->l3_len;
1045 tx_offload.outer_l2_len = tx_pkt->outer_l2_len;
1046 tx_offload.outer_l3_len = tx_pkt->outer_l3_len;
1047 tx_offload.l4_len = tx_pkt->l4_len;
1048 tx_offload.tso_segsz = tx_pkt->tso_segsz;
1050 /* Calculate the number of context descriptors needed. */
1051 nb_ctx = i40e_calc_context_desc(ol_flags);
1054 * The number of descriptors that must be allocated for
1055 * a packet equals to the number of the segments of that
1056 * packet plus 1 context descriptor if needed.
1058 nb_used = (uint16_t)(tx_pkt->nb_segs + nb_ctx);
1059 tx_last = (uint16_t)(tx_id + nb_used - 1);
1062 if (tx_last >= txq->nb_tx_desc)
1063 tx_last = (uint16_t)(tx_last - txq->nb_tx_desc);
1065 if (nb_used > txq->nb_tx_free) {
1066 if (i40e_xmit_cleanup(txq) != 0) {
1071 if (unlikely(nb_used > txq->tx_rs_thresh)) {
1072 while (nb_used > txq->nb_tx_free) {
1073 if (i40e_xmit_cleanup(txq) != 0) {
1082 /* Descriptor based VLAN insertion */
1083 if (ol_flags & (PKT_TX_VLAN_PKT | PKT_TX_QINQ_PKT)) {
1084 td_cmd |= I40E_TX_DESC_CMD_IL2TAG1;
1085 td_tag = tx_pkt->vlan_tci;
1088 /* Always enable CRC offload insertion */
1089 td_cmd |= I40E_TX_DESC_CMD_ICRC;
1091 /* Fill in tunneling parameters if necessary */
1092 cd_tunneling_params = 0;
1093 if (ol_flags & PKT_TX_TUNNEL_MASK)
1094 i40e_parse_tunneling_params(ol_flags, tx_offload,
1095 &cd_tunneling_params);
1096 /* Enable checksum offloading */
1097 if (ol_flags & I40E_TX_CKSUM_OFFLOAD_MASK)
1098 i40e_txd_enable_checksum(ol_flags, &td_cmd,
1099 &td_offset, tx_offload);
1102 /* Setup TX context descriptor if required */
1103 volatile struct i40e_tx_context_desc *ctx_txd =
1104 (volatile struct i40e_tx_context_desc *)\
1106 uint16_t cd_l2tag2 = 0;
1107 uint64_t cd_type_cmd_tso_mss =
1108 I40E_TX_DESC_DTYPE_CONTEXT;
1110 txn = &sw_ring[txe->next_id];
1111 RTE_MBUF_PREFETCH_TO_FREE(txn->mbuf);
1112 if (txe->mbuf != NULL) {
1113 rte_pktmbuf_free_seg(txe->mbuf);
1117 /* TSO enabled means no timestamp */
1118 if (ol_flags & PKT_TX_TCP_SEG)
1119 cd_type_cmd_tso_mss |=
1120 i40e_set_tso_ctx(tx_pkt, tx_offload);
1122 #ifdef RTE_LIBRTE_IEEE1588
1123 if (ol_flags & PKT_TX_IEEE1588_TMST)
1124 cd_type_cmd_tso_mss |=
1125 ((uint64_t)I40E_TX_CTX_DESC_TSYN <<
1126 I40E_TXD_CTX_QW1_CMD_SHIFT);
1130 ctx_txd->tunneling_params =
1131 rte_cpu_to_le_32(cd_tunneling_params);
1132 if (ol_flags & PKT_TX_QINQ_PKT) {
1133 cd_l2tag2 = tx_pkt->vlan_tci_outer;
1134 cd_type_cmd_tso_mss |=
1135 ((uint64_t)I40E_TX_CTX_DESC_IL2TAG2 <<
1136 I40E_TXD_CTX_QW1_CMD_SHIFT);
1138 ctx_txd->l2tag2 = rte_cpu_to_le_16(cd_l2tag2);
1139 ctx_txd->type_cmd_tso_mss =
1140 rte_cpu_to_le_64(cd_type_cmd_tso_mss);
1142 PMD_TX_LOG(DEBUG, "mbuf: %p, TCD[%u]:\n"
1143 "tunneling_params: %#x;\n"
1146 "type_cmd_tso_mss: %#"PRIx64";\n",
1148 ctx_txd->tunneling_params,
1151 ctx_txd->type_cmd_tso_mss);
1153 txe->last_id = tx_last;
1154 tx_id = txe->next_id;
1161 txn = &sw_ring[txe->next_id];
1164 rte_pktmbuf_free_seg(txe->mbuf);
1167 /* Setup TX Descriptor */
1168 slen = m_seg->data_len;
1169 buf_dma_addr = rte_mbuf_data_iova(m_seg);
1171 PMD_TX_LOG(DEBUG, "mbuf: %p, TDD[%u]:\n"
1172 "buf_dma_addr: %#"PRIx64";\n"
1177 tx_pkt, tx_id, buf_dma_addr,
1178 td_cmd, td_offset, slen, td_tag);
1180 txd->buffer_addr = rte_cpu_to_le_64(buf_dma_addr);
1181 txd->cmd_type_offset_bsz = i40e_build_ctob(td_cmd,
1182 td_offset, slen, td_tag);
1183 txe->last_id = tx_last;
1184 tx_id = txe->next_id;
1186 m_seg = m_seg->next;
1187 } while (m_seg != NULL);
1189 /* The last packet data descriptor needs End Of Packet (EOP) */
1190 td_cmd |= I40E_TX_DESC_CMD_EOP;
1191 txq->nb_tx_used = (uint16_t)(txq->nb_tx_used + nb_used);
1192 txq->nb_tx_free = (uint16_t)(txq->nb_tx_free - nb_used);
1194 if (txq->nb_tx_used >= txq->tx_rs_thresh) {
1195 PMD_TX_FREE_LOG(DEBUG,
1196 "Setting RS bit on TXD id="
1197 "%4u (port=%d queue=%d)",
1198 tx_last, txq->port_id, txq->queue_id);
1200 td_cmd |= I40E_TX_DESC_CMD_RS;
1202 /* Update txq RS bit counters */
1203 txq->nb_tx_used = 0;
1206 txd->cmd_type_offset_bsz |=
1207 rte_cpu_to_le_64(((uint64_t)td_cmd) <<
1208 I40E_TXD_QW1_CMD_SHIFT);
1214 PMD_TX_LOG(DEBUG, "port_id=%u queue_id=%u tx_tail=%u nb_tx=%u",
1215 (unsigned) txq->port_id, (unsigned) txq->queue_id,
1216 (unsigned) tx_id, (unsigned) nb_tx);
1218 I40E_PCI_REG_WRITE_RELAXED(txq->qtx_tail, tx_id);
1219 txq->tx_tail = tx_id;
1224 static __rte_always_inline int
1225 i40e_tx_free_bufs(struct i40e_tx_queue *txq)
1227 struct i40e_tx_entry *txep;
1230 if ((txq->tx_ring[txq->tx_next_dd].cmd_type_offset_bsz &
1231 rte_cpu_to_le_64(I40E_TXD_QW1_DTYPE_MASK)) !=
1232 rte_cpu_to_le_64(I40E_TX_DESC_DTYPE_DESC_DONE))
1235 txep = &(txq->sw_ring[txq->tx_next_dd - (txq->tx_rs_thresh - 1)]);
1237 for (i = 0; i < txq->tx_rs_thresh; i++)
1238 rte_prefetch0((txep + i)->mbuf);
1240 if (txq->offloads & DEV_TX_OFFLOAD_MBUF_FAST_FREE) {
1241 for (i = 0; i < txq->tx_rs_thresh; ++i, ++txep) {
1242 rte_mempool_put(txep->mbuf->pool, txep->mbuf);
1246 for (i = 0; i < txq->tx_rs_thresh; ++i, ++txep) {
1247 rte_pktmbuf_free_seg(txep->mbuf);
1252 txq->nb_tx_free = (uint16_t)(txq->nb_tx_free + txq->tx_rs_thresh);
1253 txq->tx_next_dd = (uint16_t)(txq->tx_next_dd + txq->tx_rs_thresh);
1254 if (txq->tx_next_dd >= txq->nb_tx_desc)
1255 txq->tx_next_dd = (uint16_t)(txq->tx_rs_thresh - 1);
1257 return txq->tx_rs_thresh;
1260 /* Populate 4 descriptors with data from 4 mbufs */
1262 tx4(volatile struct i40e_tx_desc *txdp, struct rte_mbuf **pkts)
1267 for (i = 0; i < 4; i++, txdp++, pkts++) {
1268 dma_addr = rte_mbuf_data_iova(*pkts);
1269 txdp->buffer_addr = rte_cpu_to_le_64(dma_addr);
1270 txdp->cmd_type_offset_bsz =
1271 i40e_build_ctob((uint32_t)I40E_TD_CMD, 0,
1272 (*pkts)->data_len, 0);
1276 /* Populate 1 descriptor with data from 1 mbuf */
1278 tx1(volatile struct i40e_tx_desc *txdp, struct rte_mbuf **pkts)
1282 dma_addr = rte_mbuf_data_iova(*pkts);
1283 txdp->buffer_addr = rte_cpu_to_le_64(dma_addr);
1284 txdp->cmd_type_offset_bsz =
1285 i40e_build_ctob((uint32_t)I40E_TD_CMD, 0,
1286 (*pkts)->data_len, 0);
1289 /* Fill hardware descriptor ring with mbuf data */
1291 i40e_tx_fill_hw_ring(struct i40e_tx_queue *txq,
1292 struct rte_mbuf **pkts,
1295 volatile struct i40e_tx_desc *txdp = &(txq->tx_ring[txq->tx_tail]);
1296 struct i40e_tx_entry *txep = &(txq->sw_ring[txq->tx_tail]);
1297 const int N_PER_LOOP = 4;
1298 const int N_PER_LOOP_MASK = N_PER_LOOP - 1;
1299 int mainpart, leftover;
1302 mainpart = (nb_pkts & ((uint32_t) ~N_PER_LOOP_MASK));
1303 leftover = (nb_pkts & ((uint32_t) N_PER_LOOP_MASK));
1304 for (i = 0; i < mainpart; i += N_PER_LOOP) {
1305 for (j = 0; j < N_PER_LOOP; ++j) {
1306 (txep + i + j)->mbuf = *(pkts + i + j);
1308 tx4(txdp + i, pkts + i);
1310 if (unlikely(leftover > 0)) {
1311 for (i = 0; i < leftover; ++i) {
1312 (txep + mainpart + i)->mbuf = *(pkts + mainpart + i);
1313 tx1(txdp + mainpart + i, pkts + mainpart + i);
1318 static inline uint16_t
1319 tx_xmit_pkts(struct i40e_tx_queue *txq,
1320 struct rte_mbuf **tx_pkts,
1323 volatile struct i40e_tx_desc *txr = txq->tx_ring;
1327 * Begin scanning the H/W ring for done descriptors when the number
1328 * of available descriptors drops below tx_free_thresh. For each done
1329 * descriptor, free the associated buffer.
1331 if (txq->nb_tx_free < txq->tx_free_thresh)
1332 i40e_tx_free_bufs(txq);
1334 /* Use available descriptor only */
1335 nb_pkts = (uint16_t)RTE_MIN(txq->nb_tx_free, nb_pkts);
1336 if (unlikely(!nb_pkts))
1339 txq->nb_tx_free = (uint16_t)(txq->nb_tx_free - nb_pkts);
1340 if ((txq->tx_tail + nb_pkts) > txq->nb_tx_desc) {
1341 n = (uint16_t)(txq->nb_tx_desc - txq->tx_tail);
1342 i40e_tx_fill_hw_ring(txq, tx_pkts, n);
1343 txr[txq->tx_next_rs].cmd_type_offset_bsz |=
1344 rte_cpu_to_le_64(((uint64_t)I40E_TX_DESC_CMD_RS) <<
1345 I40E_TXD_QW1_CMD_SHIFT);
1346 txq->tx_next_rs = (uint16_t)(txq->tx_rs_thresh - 1);
1350 /* Fill hardware descriptor ring with mbuf data */
1351 i40e_tx_fill_hw_ring(txq, tx_pkts + n, (uint16_t)(nb_pkts - n));
1352 txq->tx_tail = (uint16_t)(txq->tx_tail + (nb_pkts - n));
1354 /* Determin if RS bit needs to be set */
1355 if (txq->tx_tail > txq->tx_next_rs) {
1356 txr[txq->tx_next_rs].cmd_type_offset_bsz |=
1357 rte_cpu_to_le_64(((uint64_t)I40E_TX_DESC_CMD_RS) <<
1358 I40E_TXD_QW1_CMD_SHIFT);
1360 (uint16_t)(txq->tx_next_rs + txq->tx_rs_thresh);
1361 if (txq->tx_next_rs >= txq->nb_tx_desc)
1362 txq->tx_next_rs = (uint16_t)(txq->tx_rs_thresh - 1);
1365 if (txq->tx_tail >= txq->nb_tx_desc)
1368 /* Update the tx tail register */
1370 I40E_PCI_REG_WRITE_RELAXED(txq->qtx_tail, txq->tx_tail);
1376 i40e_xmit_pkts_simple(void *tx_queue,
1377 struct rte_mbuf **tx_pkts,
1382 if (likely(nb_pkts <= I40E_TX_MAX_BURST))
1383 return tx_xmit_pkts((struct i40e_tx_queue *)tx_queue,
1387 uint16_t ret, num = (uint16_t)RTE_MIN(nb_pkts,
1390 ret = tx_xmit_pkts((struct i40e_tx_queue *)tx_queue,
1391 &tx_pkts[nb_tx], num);
1392 nb_tx = (uint16_t)(nb_tx + ret);
1393 nb_pkts = (uint16_t)(nb_pkts - ret);
1402 i40e_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
1406 struct i40e_tx_queue *txq = (struct i40e_tx_queue *)tx_queue;
1411 num = (uint16_t)RTE_MIN(nb_pkts, txq->tx_rs_thresh);
1412 ret = i40e_xmit_fixed_burst_vec(tx_queue, &tx_pkts[nb_tx],
1423 /*********************************************************************
1427 **********************************************************************/
1429 i40e_prep_pkts(__rte_unused void *tx_queue, struct rte_mbuf **tx_pkts,
1436 for (i = 0; i < nb_pkts; i++) {
1438 ol_flags = m->ol_flags;
1440 /* Check for m->nb_segs to not exceed the limits. */
1441 if (!(ol_flags & PKT_TX_TCP_SEG)) {
1442 if (m->nb_segs > I40E_TX_MAX_SEG ||
1443 m->nb_segs > I40E_TX_MAX_MTU_SEG) {
1444 rte_errno = -EINVAL;
1447 } else if ((m->tso_segsz < I40E_MIN_TSO_MSS) ||
1448 (m->tso_segsz > I40E_MAX_TSO_MSS)) {
1449 /* MSS outside the range (256B - 9674B) are considered
1452 rte_errno = -EINVAL;
1456 if (ol_flags & I40E_TX_OFFLOAD_NOTSUP_MASK) {
1457 rte_errno = -ENOTSUP;
1461 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
1462 ret = rte_validate_tx_offload(m);
1468 ret = rte_net_intel_cksum_prepare(m);
1478 * Find the VSI the queue belongs to. 'queue_idx' is the queue index
1479 * application used, which assume having sequential ones. But from driver's
1480 * perspective, it's different. For example, q0 belongs to FDIR VSI, q1-q64
1481 * to MAIN VSI, , q65-96 to SRIOV VSIs, q97-128 to VMDQ VSIs. For application
1482 * running on host, q1-64 and q97-128 can be used, total 96 queues. They can
1483 * use queue_idx from 0 to 95 to access queues, while real queue would be
1484 * different. This function will do a queue mapping to find VSI the queue
1487 static struct i40e_vsi*
1488 i40e_pf_get_vsi_by_qindex(struct i40e_pf *pf, uint16_t queue_idx)
1490 /* the queue in MAIN VSI range */
1491 if (queue_idx < pf->main_vsi->nb_qps)
1492 return pf->main_vsi;
1494 queue_idx -= pf->main_vsi->nb_qps;
1496 /* queue_idx is greater than VMDQ VSIs range */
1497 if (queue_idx > pf->nb_cfg_vmdq_vsi * pf->vmdq_nb_qps - 1) {
1498 PMD_INIT_LOG(ERR, "queue_idx out of range. VMDQ configured?");
1502 return pf->vmdq[queue_idx / pf->vmdq_nb_qps].vsi;
1506 i40e_get_queue_offset_by_qindex(struct i40e_pf *pf, uint16_t queue_idx)
1508 /* the queue in MAIN VSI range */
1509 if (queue_idx < pf->main_vsi->nb_qps)
1512 /* It's VMDQ queues */
1513 queue_idx -= pf->main_vsi->nb_qps;
1515 if (pf->nb_cfg_vmdq_vsi)
1516 return queue_idx % pf->vmdq_nb_qps;
1518 PMD_INIT_LOG(ERR, "Fail to get queue offset");
1519 return (uint16_t)(-1);
1524 i40e_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1526 struct i40e_rx_queue *rxq;
1528 struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1530 PMD_INIT_FUNC_TRACE();
1532 if (rx_queue_id < dev->data->nb_rx_queues) {
1533 rxq = dev->data->rx_queues[rx_queue_id];
1535 err = i40e_alloc_rx_queue_mbufs(rxq);
1537 PMD_DRV_LOG(ERR, "Failed to allocate RX queue mbuf");
1543 /* Init the RX tail regieter. */
1544 I40E_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
1546 err = i40e_switch_rx_queue(hw, rxq->reg_idx, TRUE);
1549 PMD_DRV_LOG(ERR, "Failed to switch RX queue %u on",
1552 i40e_rx_queue_release_mbufs(rxq);
1553 i40e_reset_rx_queue(rxq);
1555 dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
1562 i40e_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1564 struct i40e_rx_queue *rxq;
1566 struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1568 if (rx_queue_id < dev->data->nb_rx_queues) {
1569 rxq = dev->data->rx_queues[rx_queue_id];
1572 * rx_queue_id is queue id application refers to, while
1573 * rxq->reg_idx is the real queue index.
1575 err = i40e_switch_rx_queue(hw, rxq->reg_idx, FALSE);
1578 PMD_DRV_LOG(ERR, "Failed to switch RX queue %u off",
1582 i40e_rx_queue_release_mbufs(rxq);
1583 i40e_reset_rx_queue(rxq);
1584 dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
1591 i40e_dev_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1594 struct i40e_tx_queue *txq;
1595 struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1597 PMD_INIT_FUNC_TRACE();
1599 if (tx_queue_id < dev->data->nb_tx_queues) {
1600 txq = dev->data->tx_queues[tx_queue_id];
1603 * tx_queue_id is queue id application refers to, while
1604 * rxq->reg_idx is the real queue index.
1606 err = i40e_switch_tx_queue(hw, txq->reg_idx, TRUE);
1608 PMD_DRV_LOG(ERR, "Failed to switch TX queue %u on",
1611 dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
1618 i40e_dev_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1620 struct i40e_tx_queue *txq;
1622 struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1624 if (tx_queue_id < dev->data->nb_tx_queues) {
1625 txq = dev->data->tx_queues[tx_queue_id];
1628 * tx_queue_id is queue id application refers to, while
1629 * txq->reg_idx is the real queue index.
1631 err = i40e_switch_tx_queue(hw, txq->reg_idx, FALSE);
1634 PMD_DRV_LOG(ERR, "Failed to switch TX queue %u of",
1639 i40e_tx_queue_release_mbufs(txq);
1640 i40e_reset_tx_queue(txq);
1641 dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
1648 i40e_dev_supported_ptypes_get(struct rte_eth_dev *dev)
1650 static const uint32_t ptypes[] = {
1651 /* refers to i40e_rxd_pkt_type_mapping() */
1653 RTE_PTYPE_L2_ETHER_TIMESYNC,
1654 RTE_PTYPE_L2_ETHER_LLDP,
1655 RTE_PTYPE_L2_ETHER_ARP,
1656 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
1657 RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
1660 RTE_PTYPE_L4_NONFRAG,
1664 RTE_PTYPE_TUNNEL_GRENAT,
1665 RTE_PTYPE_TUNNEL_IP,
1666 RTE_PTYPE_INNER_L2_ETHER,
1667 RTE_PTYPE_INNER_L2_ETHER_VLAN,
1668 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN,
1669 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN,
1670 RTE_PTYPE_INNER_L4_FRAG,
1671 RTE_PTYPE_INNER_L4_ICMP,
1672 RTE_PTYPE_INNER_L4_NONFRAG,
1673 RTE_PTYPE_INNER_L4_SCTP,
1674 RTE_PTYPE_INNER_L4_TCP,
1675 RTE_PTYPE_INNER_L4_UDP,
1679 if (dev->rx_pkt_burst == i40e_recv_pkts ||
1680 #ifdef RTE_LIBRTE_I40E_RX_ALLOW_BULK_ALLOC
1681 dev->rx_pkt_burst == i40e_recv_pkts_bulk_alloc ||
1683 dev->rx_pkt_burst == i40e_recv_scattered_pkts ||
1684 dev->rx_pkt_burst == i40e_recv_scattered_pkts_vec ||
1685 dev->rx_pkt_burst == i40e_recv_pkts_vec ||
1686 dev->rx_pkt_burst == i40e_recv_scattered_pkts_vec_avx2 ||
1687 dev->rx_pkt_burst == i40e_recv_pkts_vec_avx2)
1693 i40e_dev_first_queue(uint16_t idx, void **queues, int num)
1697 for (i = 0; i < num; i++) {
1698 if (i != idx && queues[i])
1706 i40e_dev_rx_queue_setup_runtime(struct rte_eth_dev *dev,
1707 struct i40e_rx_queue *rxq)
1709 struct i40e_adapter *ad =
1710 I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
1711 int use_def_burst_func =
1712 check_rx_burst_bulk_alloc_preconditions(rxq);
1714 (uint16_t)(rte_pktmbuf_data_room_size(rxq->mp) -
1715 RTE_PKTMBUF_HEADROOM);
1716 int use_scattered_rx =
1717 ((rxq->max_pkt_len + 2 * I40E_VLAN_TAG_SIZE) > buf_size);
1719 if (i40e_rx_queue_init(rxq) != I40E_SUCCESS) {
1721 "Failed to do RX queue initialization");
1725 if (i40e_dev_first_queue(rxq->queue_id,
1726 dev->data->rx_queues,
1727 dev->data->nb_rx_queues)) {
1729 * If it is the first queue to setup,
1730 * set all flags to default and call
1731 * i40e_set_rx_function.
1733 ad->rx_bulk_alloc_allowed = true;
1734 ad->rx_vec_allowed = true;
1735 dev->data->scattered_rx = use_scattered_rx;
1736 if (use_def_burst_func)
1737 ad->rx_bulk_alloc_allowed = false;
1738 i40e_set_rx_function(dev);
1742 /* check bulk alloc conflict */
1743 if (ad->rx_bulk_alloc_allowed && use_def_burst_func) {
1744 PMD_DRV_LOG(ERR, "Can't use default burst.");
1747 /* check scatterred conflict */
1748 if (!dev->data->scattered_rx && use_scattered_rx) {
1749 PMD_DRV_LOG(ERR, "Scattered rx is required.");
1752 /* check vector conflict */
1753 if (ad->rx_vec_allowed && i40e_rxq_vec_setup(rxq)) {
1754 PMD_DRV_LOG(ERR, "Failed vector rx setup.");
1762 i40e_dev_rx_queue_setup(struct rte_eth_dev *dev,
1765 unsigned int socket_id,
1766 const struct rte_eth_rxconf *rx_conf,
1767 struct rte_mempool *mp)
1769 struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1770 struct i40e_adapter *ad =
1771 I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
1772 struct i40e_vsi *vsi;
1773 struct i40e_pf *pf = NULL;
1774 struct i40e_vf *vf = NULL;
1775 struct i40e_rx_queue *rxq;
1776 const struct rte_memzone *rz;
1779 uint16_t reg_idx, base, bsf, tc_mapping;
1780 int q_offset, use_def_burst_func = 1;
1783 offloads = rx_conf->offloads | dev->data->dev_conf.rxmode.offloads;
1785 if (hw->mac.type == I40E_MAC_VF || hw->mac.type == I40E_MAC_X722_VF) {
1786 vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
1790 reg_idx = queue_idx;
1792 pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
1793 vsi = i40e_pf_get_vsi_by_qindex(pf, queue_idx);
1796 q_offset = i40e_get_queue_offset_by_qindex(pf, queue_idx);
1799 reg_idx = vsi->base_queue + q_offset;
1802 if (nb_desc % I40E_ALIGN_RING_DESC != 0 ||
1803 (nb_desc > I40E_MAX_RING_DESC) ||
1804 (nb_desc < I40E_MIN_RING_DESC)) {
1805 PMD_DRV_LOG(ERR, "Number (%u) of receive descriptors is "
1806 "invalid", nb_desc);
1810 /* Free memory if needed */
1811 if (dev->data->rx_queues[queue_idx]) {
1812 i40e_dev_rx_queue_release(dev->data->rx_queues[queue_idx]);
1813 dev->data->rx_queues[queue_idx] = NULL;
1816 /* Allocate the rx queue data structure */
1817 rxq = rte_zmalloc_socket("i40e rx queue",
1818 sizeof(struct i40e_rx_queue),
1819 RTE_CACHE_LINE_SIZE,
1822 PMD_DRV_LOG(ERR, "Failed to allocate memory for "
1823 "rx queue data structure");
1827 rxq->nb_rx_desc = nb_desc;
1828 rxq->rx_free_thresh = rx_conf->rx_free_thresh;
1829 rxq->queue_id = queue_idx;
1830 rxq->reg_idx = reg_idx;
1831 rxq->port_id = dev->data->port_id;
1832 rxq->crc_len = (uint8_t)((dev->data->dev_conf.rxmode.offloads &
1833 DEV_RX_OFFLOAD_CRC_STRIP) ? 0 : ETHER_CRC_LEN);
1834 rxq->drop_en = rx_conf->rx_drop_en;
1836 rxq->rx_deferred_start = rx_conf->rx_deferred_start;
1837 rxq->offloads = offloads;
1839 /* Allocate the maximun number of RX ring hardware descriptor. */
1840 len = I40E_MAX_RING_DESC;
1843 * Allocating a little more memory because vectorized/bulk_alloc Rx
1844 * functions doesn't check boundaries each time.
1846 len += RTE_PMD_I40E_RX_MAX_BURST;
1848 ring_size = RTE_ALIGN(len * sizeof(union i40e_rx_desc),
1849 I40E_DMA_MEM_ALIGN);
1851 rz = rte_eth_dma_zone_reserve(dev, "rx_ring", queue_idx,
1852 ring_size, I40E_RING_BASE_ALIGN, socket_id);
1854 i40e_dev_rx_queue_release(rxq);
1855 PMD_DRV_LOG(ERR, "Failed to reserve DMA memory for RX");
1859 /* Zero all the descriptors in the ring. */
1860 memset(rz->addr, 0, ring_size);
1862 rxq->rx_ring_phys_addr = rz->iova;
1863 rxq->rx_ring = (union i40e_rx_desc *)rz->addr;
1865 len = (uint16_t)(nb_desc + RTE_PMD_I40E_RX_MAX_BURST);
1867 /* Allocate the software ring. */
1869 rte_zmalloc_socket("i40e rx sw ring",
1870 sizeof(struct i40e_rx_entry) * len,
1871 RTE_CACHE_LINE_SIZE,
1873 if (!rxq->sw_ring) {
1874 i40e_dev_rx_queue_release(rxq);
1875 PMD_DRV_LOG(ERR, "Failed to allocate memory for SW ring");
1879 i40e_reset_rx_queue(rxq);
1882 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1883 if (!(vsi->enabled_tc & (1 << i)))
1885 tc_mapping = rte_le_to_cpu_16(vsi->info.tc_mapping[i]);
1886 base = (tc_mapping & I40E_AQ_VSI_TC_QUE_OFFSET_MASK) >>
1887 I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT;
1888 bsf = (tc_mapping & I40E_AQ_VSI_TC_QUE_NUMBER_MASK) >>
1889 I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT;
1891 if (queue_idx >= base && queue_idx < (base + BIT(bsf)))
1895 if (dev->data->dev_started) {
1896 if (i40e_dev_rx_queue_setup_runtime(dev, rxq)) {
1897 i40e_dev_rx_queue_release(rxq);
1901 use_def_burst_func =
1902 check_rx_burst_bulk_alloc_preconditions(rxq);
1903 if (!use_def_burst_func) {
1904 #ifdef RTE_LIBRTE_I40E_RX_ALLOW_BULK_ALLOC
1906 "Rx Burst Bulk Alloc Preconditions are "
1907 "satisfied. Rx Burst Bulk Alloc function will be "
1908 "used on port=%d, queue=%d.",
1909 rxq->port_id, rxq->queue_id);
1910 #endif /* RTE_LIBRTE_I40E_RX_ALLOW_BULK_ALLOC */
1913 "Rx Burst Bulk Alloc Preconditions are "
1914 "not satisfied, Scattered Rx is requested, "
1915 "or RTE_LIBRTE_I40E_RX_ALLOW_BULK_ALLOC is "
1916 "not enabled on port=%d, queue=%d.",
1917 rxq->port_id, rxq->queue_id);
1918 ad->rx_bulk_alloc_allowed = false;
1922 dev->data->rx_queues[queue_idx] = rxq;
1927 i40e_dev_rx_queue_release(void *rxq)
1929 struct i40e_rx_queue *q = (struct i40e_rx_queue *)rxq;
1932 PMD_DRV_LOG(DEBUG, "Pointer to rxq is NULL");
1936 i40e_rx_queue_release_mbufs(q);
1937 rte_free(q->sw_ring);
1942 i40e_dev_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1944 #define I40E_RXQ_SCAN_INTERVAL 4
1945 volatile union i40e_rx_desc *rxdp;
1946 struct i40e_rx_queue *rxq;
1949 rxq = dev->data->rx_queues[rx_queue_id];
1950 rxdp = &(rxq->rx_ring[rxq->rx_tail]);
1951 while ((desc < rxq->nb_rx_desc) &&
1952 ((rte_le_to_cpu_64(rxdp->wb.qword1.status_error_len) &
1953 I40E_RXD_QW1_STATUS_MASK) >> I40E_RXD_QW1_STATUS_SHIFT) &
1954 (1 << I40E_RX_DESC_STATUS_DD_SHIFT)) {
1956 * Check the DD bit of a rx descriptor of each 4 in a group,
1957 * to avoid checking too frequently and downgrading performance
1960 desc += I40E_RXQ_SCAN_INTERVAL;
1961 rxdp += I40E_RXQ_SCAN_INTERVAL;
1962 if (rxq->rx_tail + desc >= rxq->nb_rx_desc)
1963 rxdp = &(rxq->rx_ring[rxq->rx_tail +
1964 desc - rxq->nb_rx_desc]);
1971 i40e_dev_rx_descriptor_done(void *rx_queue, uint16_t offset)
1973 volatile union i40e_rx_desc *rxdp;
1974 struct i40e_rx_queue *rxq = rx_queue;
1978 if (unlikely(offset >= rxq->nb_rx_desc)) {
1979 PMD_DRV_LOG(ERR, "Invalid RX descriptor id %u", offset);
1983 desc = rxq->rx_tail + offset;
1984 if (desc >= rxq->nb_rx_desc)
1985 desc -= rxq->nb_rx_desc;
1987 rxdp = &(rxq->rx_ring[desc]);
1989 ret = !!(((rte_le_to_cpu_64(rxdp->wb.qword1.status_error_len) &
1990 I40E_RXD_QW1_STATUS_MASK) >> I40E_RXD_QW1_STATUS_SHIFT) &
1991 (1 << I40E_RX_DESC_STATUS_DD_SHIFT));
1997 i40e_dev_rx_descriptor_status(void *rx_queue, uint16_t offset)
1999 struct i40e_rx_queue *rxq = rx_queue;
2000 volatile uint64_t *status;
2004 if (unlikely(offset >= rxq->nb_rx_desc))
2007 if (offset >= rxq->nb_rx_desc - rxq->nb_rx_hold)
2008 return RTE_ETH_RX_DESC_UNAVAIL;
2010 desc = rxq->rx_tail + offset;
2011 if (desc >= rxq->nb_rx_desc)
2012 desc -= rxq->nb_rx_desc;
2014 status = &rxq->rx_ring[desc].wb.qword1.status_error_len;
2015 mask = rte_le_to_cpu_64((1ULL << I40E_RX_DESC_STATUS_DD_SHIFT)
2016 << I40E_RXD_QW1_STATUS_SHIFT);
2018 return RTE_ETH_RX_DESC_DONE;
2020 return RTE_ETH_RX_DESC_AVAIL;
2024 i40e_dev_tx_descriptor_status(void *tx_queue, uint16_t offset)
2026 struct i40e_tx_queue *txq = tx_queue;
2027 volatile uint64_t *status;
2028 uint64_t mask, expect;
2031 if (unlikely(offset >= txq->nb_tx_desc))
2034 desc = txq->tx_tail + offset;
2035 /* go to next desc that has the RS bit */
2036 desc = ((desc + txq->tx_rs_thresh - 1) / txq->tx_rs_thresh) *
2038 if (desc >= txq->nb_tx_desc) {
2039 desc -= txq->nb_tx_desc;
2040 if (desc >= txq->nb_tx_desc)
2041 desc -= txq->nb_tx_desc;
2044 status = &txq->tx_ring[desc].cmd_type_offset_bsz;
2045 mask = rte_le_to_cpu_64(I40E_TXD_QW1_DTYPE_MASK);
2046 expect = rte_cpu_to_le_64(
2047 I40E_TX_DESC_DTYPE_DESC_DONE << I40E_TXD_QW1_DTYPE_SHIFT);
2048 if ((*status & mask) == expect)
2049 return RTE_ETH_TX_DESC_DONE;
2051 return RTE_ETH_TX_DESC_FULL;
2055 i40e_dev_tx_queue_setup_runtime(struct rte_eth_dev *dev,
2056 struct i40e_tx_queue *txq)
2058 struct i40e_adapter *ad =
2059 I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
2061 if (i40e_tx_queue_init(txq) != I40E_SUCCESS) {
2063 "Failed to do TX queue initialization");
2067 if (i40e_dev_first_queue(txq->queue_id,
2068 dev->data->tx_queues,
2069 dev->data->nb_tx_queues)) {
2071 * If it is the first queue to setup,
2072 * set all flags and call
2073 * i40e_set_tx_function.
2075 i40e_set_tx_function_flag(dev, txq);
2076 i40e_set_tx_function(dev);
2080 /* check vector conflict */
2081 if (ad->tx_vec_allowed) {
2082 if (txq->tx_rs_thresh > RTE_I40E_TX_MAX_FREE_BUF_SZ ||
2083 i40e_txq_vec_setup(txq)) {
2084 PMD_DRV_LOG(ERR, "Failed vector tx setup.");
2088 /* check simple tx conflict */
2089 if (ad->tx_simple_allowed) {
2090 if (txq->offloads != 0 ||
2091 txq->tx_rs_thresh < RTE_PMD_I40E_TX_MAX_BURST) {
2092 PMD_DRV_LOG(ERR, "No-simple tx is required.");
2101 i40e_dev_tx_queue_setup(struct rte_eth_dev *dev,
2104 unsigned int socket_id,
2105 const struct rte_eth_txconf *tx_conf)
2107 struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2108 struct i40e_vsi *vsi;
2109 struct i40e_pf *pf = NULL;
2110 struct i40e_vf *vf = NULL;
2111 struct i40e_tx_queue *txq;
2112 const struct rte_memzone *tz;
2114 uint16_t tx_rs_thresh, tx_free_thresh;
2115 uint16_t reg_idx, i, base, bsf, tc_mapping;
2119 offloads = tx_conf->offloads | dev->data->dev_conf.txmode.offloads;
2121 if (hw->mac.type == I40E_MAC_VF || hw->mac.type == I40E_MAC_X722_VF) {
2122 vf = I40EVF_DEV_PRIVATE_TO_VF(dev->data->dev_private);
2126 reg_idx = queue_idx;
2128 pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
2129 vsi = i40e_pf_get_vsi_by_qindex(pf, queue_idx);
2132 q_offset = i40e_get_queue_offset_by_qindex(pf, queue_idx);
2135 reg_idx = vsi->base_queue + q_offset;
2138 if (nb_desc % I40E_ALIGN_RING_DESC != 0 ||
2139 (nb_desc > I40E_MAX_RING_DESC) ||
2140 (nb_desc < I40E_MIN_RING_DESC)) {
2141 PMD_DRV_LOG(ERR, "Number (%u) of transmit descriptors is "
2142 "invalid", nb_desc);
2147 * The following two parameters control the setting of the RS bit on
2148 * transmit descriptors. TX descriptors will have their RS bit set
2149 * after txq->tx_rs_thresh descriptors have been used. The TX
2150 * descriptor ring will be cleaned after txq->tx_free_thresh
2151 * descriptors are used or if the number of descriptors required to
2152 * transmit a packet is greater than the number of free TX descriptors.
2154 * The following constraints must be satisfied:
2155 * - tx_rs_thresh must be greater than 0.
2156 * - tx_rs_thresh must be less than the size of the ring minus 2.
2157 * - tx_rs_thresh must be less than or equal to tx_free_thresh.
2158 * - tx_rs_thresh must be a divisor of the ring size.
2159 * - tx_free_thresh must be greater than 0.
2160 * - tx_free_thresh must be less than the size of the ring minus 3.
2162 * One descriptor in the TX ring is used as a sentinel to avoid a H/W
2163 * race condition, hence the maximum threshold constraints. When set
2164 * to zero use default values.
2166 tx_rs_thresh = (uint16_t)((tx_conf->tx_rs_thresh) ?
2167 tx_conf->tx_rs_thresh : DEFAULT_TX_RS_THRESH);
2168 tx_free_thresh = (uint16_t)((tx_conf->tx_free_thresh) ?
2169 tx_conf->tx_free_thresh : DEFAULT_TX_FREE_THRESH);
2170 if (tx_rs_thresh >= (nb_desc - 2)) {
2171 PMD_INIT_LOG(ERR, "tx_rs_thresh must be less than the "
2172 "number of TX descriptors minus 2. "
2173 "(tx_rs_thresh=%u port=%d queue=%d)",
2174 (unsigned int)tx_rs_thresh,
2175 (int)dev->data->port_id,
2177 return I40E_ERR_PARAM;
2179 if (tx_free_thresh >= (nb_desc - 3)) {
2180 PMD_INIT_LOG(ERR, "tx_free_thresh must be less than the "
2181 "number of TX descriptors minus 3. "
2182 "(tx_free_thresh=%u port=%d queue=%d)",
2183 (unsigned int)tx_free_thresh,
2184 (int)dev->data->port_id,
2186 return I40E_ERR_PARAM;
2188 if (tx_rs_thresh > tx_free_thresh) {
2189 PMD_INIT_LOG(ERR, "tx_rs_thresh must be less than or "
2190 "equal to tx_free_thresh. (tx_free_thresh=%u"
2191 " tx_rs_thresh=%u port=%d queue=%d)",
2192 (unsigned int)tx_free_thresh,
2193 (unsigned int)tx_rs_thresh,
2194 (int)dev->data->port_id,
2196 return I40E_ERR_PARAM;
2198 if ((nb_desc % tx_rs_thresh) != 0) {
2199 PMD_INIT_LOG(ERR, "tx_rs_thresh must be a divisor of the "
2200 "number of TX descriptors. (tx_rs_thresh=%u"
2201 " port=%d queue=%d)",
2202 (unsigned int)tx_rs_thresh,
2203 (int)dev->data->port_id,
2205 return I40E_ERR_PARAM;
2207 if ((tx_rs_thresh > 1) && (tx_conf->tx_thresh.wthresh != 0)) {
2208 PMD_INIT_LOG(ERR, "TX WTHRESH must be set to 0 if "
2209 "tx_rs_thresh is greater than 1. "
2210 "(tx_rs_thresh=%u port=%d queue=%d)",
2211 (unsigned int)tx_rs_thresh,
2212 (int)dev->data->port_id,
2214 return I40E_ERR_PARAM;
2217 /* Free memory if needed. */
2218 if (dev->data->tx_queues[queue_idx]) {
2219 i40e_dev_tx_queue_release(dev->data->tx_queues[queue_idx]);
2220 dev->data->tx_queues[queue_idx] = NULL;
2223 /* Allocate the TX queue data structure. */
2224 txq = rte_zmalloc_socket("i40e tx queue",
2225 sizeof(struct i40e_tx_queue),
2226 RTE_CACHE_LINE_SIZE,
2229 PMD_DRV_LOG(ERR, "Failed to allocate memory for "
2230 "tx queue structure");
2234 /* Allocate TX hardware ring descriptors. */
2235 ring_size = sizeof(struct i40e_tx_desc) * I40E_MAX_RING_DESC;
2236 ring_size = RTE_ALIGN(ring_size, I40E_DMA_MEM_ALIGN);
2237 tz = rte_eth_dma_zone_reserve(dev, "tx_ring", queue_idx,
2238 ring_size, I40E_RING_BASE_ALIGN, socket_id);
2240 i40e_dev_tx_queue_release(txq);
2241 PMD_DRV_LOG(ERR, "Failed to reserve DMA memory for TX");
2245 txq->nb_tx_desc = nb_desc;
2246 txq->tx_rs_thresh = tx_rs_thresh;
2247 txq->tx_free_thresh = tx_free_thresh;
2248 txq->pthresh = tx_conf->tx_thresh.pthresh;
2249 txq->hthresh = tx_conf->tx_thresh.hthresh;
2250 txq->wthresh = tx_conf->tx_thresh.wthresh;
2251 txq->queue_id = queue_idx;
2252 txq->reg_idx = reg_idx;
2253 txq->port_id = dev->data->port_id;
2254 txq->offloads = offloads;
2256 txq->tx_deferred_start = tx_conf->tx_deferred_start;
2258 txq->tx_ring_phys_addr = tz->iova;
2259 txq->tx_ring = (struct i40e_tx_desc *)tz->addr;
2261 /* Allocate software ring */
2263 rte_zmalloc_socket("i40e tx sw ring",
2264 sizeof(struct i40e_tx_entry) * nb_desc,
2265 RTE_CACHE_LINE_SIZE,
2267 if (!txq->sw_ring) {
2268 i40e_dev_tx_queue_release(txq);
2269 PMD_DRV_LOG(ERR, "Failed to allocate memory for SW TX ring");
2273 i40e_reset_tx_queue(txq);
2276 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
2277 if (!(vsi->enabled_tc & (1 << i)))
2279 tc_mapping = rte_le_to_cpu_16(vsi->info.tc_mapping[i]);
2280 base = (tc_mapping & I40E_AQ_VSI_TC_QUE_OFFSET_MASK) >>
2281 I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT;
2282 bsf = (tc_mapping & I40E_AQ_VSI_TC_QUE_NUMBER_MASK) >>
2283 I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT;
2285 if (queue_idx >= base && queue_idx < (base + BIT(bsf)))
2289 if (dev->data->dev_started) {
2290 if (i40e_dev_tx_queue_setup_runtime(dev, txq)) {
2291 i40e_dev_tx_queue_release(txq);
2296 * Use a simple TX queue without offloads or
2297 * multi segs if possible
2299 i40e_set_tx_function_flag(dev, txq);
2301 dev->data->tx_queues[queue_idx] = txq;
2307 i40e_dev_tx_queue_release(void *txq)
2309 struct i40e_tx_queue *q = (struct i40e_tx_queue *)txq;
2312 PMD_DRV_LOG(DEBUG, "Pointer to TX queue is NULL");
2316 i40e_tx_queue_release_mbufs(q);
2317 rte_free(q->sw_ring);
2321 const struct rte_memzone *
2322 i40e_memzone_reserve(const char *name, uint32_t len, int socket_id)
2324 const struct rte_memzone *mz;
2326 mz = rte_memzone_lookup(name);
2330 mz = rte_memzone_reserve_aligned(name, len, socket_id,
2331 RTE_MEMZONE_IOVA_CONTIG, I40E_RING_BASE_ALIGN);
2336 i40e_rx_queue_release_mbufs(struct i40e_rx_queue *rxq)
2340 /* SSE Vector driver has a different way of releasing mbufs. */
2341 if (rxq->rx_using_sse) {
2342 i40e_rx_queue_release_mbufs_vec(rxq);
2346 if (!rxq->sw_ring) {
2347 PMD_DRV_LOG(DEBUG, "Pointer to sw_ring is NULL");
2351 for (i = 0; i < rxq->nb_rx_desc; i++) {
2352 if (rxq->sw_ring[i].mbuf) {
2353 rte_pktmbuf_free_seg(rxq->sw_ring[i].mbuf);
2354 rxq->sw_ring[i].mbuf = NULL;
2357 #ifdef RTE_LIBRTE_I40E_RX_ALLOW_BULK_ALLOC
2358 if (rxq->rx_nb_avail == 0)
2360 for (i = 0; i < rxq->rx_nb_avail; i++) {
2361 struct rte_mbuf *mbuf;
2363 mbuf = rxq->rx_stage[rxq->rx_next_avail + i];
2364 rte_pktmbuf_free_seg(mbuf);
2366 rxq->rx_nb_avail = 0;
2367 #endif /* RTE_LIBRTE_I40E_RX_ALLOW_BULK_ALLOC */
2371 i40e_reset_rx_queue(struct i40e_rx_queue *rxq)
2377 PMD_DRV_LOG(DEBUG, "Pointer to rxq is NULL");
2381 #ifdef RTE_LIBRTE_I40E_RX_ALLOW_BULK_ALLOC
2382 if (check_rx_burst_bulk_alloc_preconditions(rxq) == 0)
2383 len = (uint16_t)(rxq->nb_rx_desc + RTE_PMD_I40E_RX_MAX_BURST);
2385 #endif /* RTE_LIBRTE_I40E_RX_ALLOW_BULK_ALLOC */
2386 len = rxq->nb_rx_desc;
2388 for (i = 0; i < len * sizeof(union i40e_rx_desc); i++)
2389 ((volatile char *)rxq->rx_ring)[i] = 0;
2391 memset(&rxq->fake_mbuf, 0x0, sizeof(rxq->fake_mbuf));
2392 for (i = 0; i < RTE_PMD_I40E_RX_MAX_BURST; ++i)
2393 rxq->sw_ring[rxq->nb_rx_desc + i].mbuf = &rxq->fake_mbuf;
2395 #ifdef RTE_LIBRTE_I40E_RX_ALLOW_BULK_ALLOC
2396 rxq->rx_nb_avail = 0;
2397 rxq->rx_next_avail = 0;
2398 rxq->rx_free_trigger = (uint16_t)(rxq->rx_free_thresh - 1);
2399 #endif /* RTE_LIBRTE_I40E_RX_ALLOW_BULK_ALLOC */
2401 rxq->nb_rx_hold = 0;
2402 rxq->pkt_first_seg = NULL;
2403 rxq->pkt_last_seg = NULL;
2405 rxq->rxrearm_start = 0;
2406 rxq->rxrearm_nb = 0;
2410 i40e_tx_queue_release_mbufs(struct i40e_tx_queue *txq)
2412 struct rte_eth_dev *dev;
2415 dev = &rte_eth_devices[txq->port_id];
2417 if (!txq || !txq->sw_ring) {
2418 PMD_DRV_LOG(DEBUG, "Pointer to rxq or sw_ring is NULL");
2423 * vPMD tx will not set sw_ring's mbuf to NULL after free,
2424 * so need to free remains more carefully.
2426 if (dev->tx_pkt_burst == i40e_xmit_pkts_vec_avx2 ||
2427 dev->tx_pkt_burst == i40e_xmit_pkts_vec) {
2428 i = txq->tx_next_dd - txq->tx_rs_thresh + 1;
2429 if (txq->tx_tail < i) {
2430 for (; i < txq->nb_tx_desc; i++) {
2431 rte_pktmbuf_free_seg(txq->sw_ring[i].mbuf);
2432 txq->sw_ring[i].mbuf = NULL;
2436 for (; i < txq->tx_tail; i++) {
2437 rte_pktmbuf_free_seg(txq->sw_ring[i].mbuf);
2438 txq->sw_ring[i].mbuf = NULL;
2441 for (i = 0; i < txq->nb_tx_desc; i++) {
2442 if (txq->sw_ring[i].mbuf) {
2443 rte_pktmbuf_free_seg(txq->sw_ring[i].mbuf);
2444 txq->sw_ring[i].mbuf = NULL;
2451 i40e_reset_tx_queue(struct i40e_tx_queue *txq)
2453 struct i40e_tx_entry *txe;
2454 uint16_t i, prev, size;
2457 PMD_DRV_LOG(DEBUG, "Pointer to txq is NULL");
2462 size = sizeof(struct i40e_tx_desc) * txq->nb_tx_desc;
2463 for (i = 0; i < size; i++)
2464 ((volatile char *)txq->tx_ring)[i] = 0;
2466 prev = (uint16_t)(txq->nb_tx_desc - 1);
2467 for (i = 0; i < txq->nb_tx_desc; i++) {
2468 volatile struct i40e_tx_desc *txd = &txq->tx_ring[i];
2470 txd->cmd_type_offset_bsz =
2471 rte_cpu_to_le_64(I40E_TX_DESC_DTYPE_DESC_DONE);
2474 txe[prev].next_id = i;
2478 txq->tx_next_dd = (uint16_t)(txq->tx_rs_thresh - 1);
2479 txq->tx_next_rs = (uint16_t)(txq->tx_rs_thresh - 1);
2482 txq->nb_tx_used = 0;
2484 txq->last_desc_cleaned = (uint16_t)(txq->nb_tx_desc - 1);
2485 txq->nb_tx_free = (uint16_t)(txq->nb_tx_desc - 1);
2488 /* Init the TX queue in hardware */
2490 i40e_tx_queue_init(struct i40e_tx_queue *txq)
2492 enum i40e_status_code err = I40E_SUCCESS;
2493 struct i40e_vsi *vsi = txq->vsi;
2494 struct i40e_hw *hw = I40E_VSI_TO_HW(vsi);
2495 uint16_t pf_q = txq->reg_idx;
2496 struct i40e_hmc_obj_txq tx_ctx;
2499 /* clear the context structure first */
2500 memset(&tx_ctx, 0, sizeof(tx_ctx));
2501 tx_ctx.new_context = 1;
2502 tx_ctx.base = txq->tx_ring_phys_addr / I40E_QUEUE_BASE_ADDR_UNIT;
2503 tx_ctx.qlen = txq->nb_tx_desc;
2505 #ifdef RTE_LIBRTE_IEEE1588
2506 tx_ctx.timesync_ena = 1;
2508 tx_ctx.rdylist = rte_le_to_cpu_16(vsi->info.qs_handle[txq->dcb_tc]);
2509 if (vsi->type == I40E_VSI_FDIR)
2510 tx_ctx.fd_ena = TRUE;
2512 err = i40e_clear_lan_tx_queue_context(hw, pf_q);
2513 if (err != I40E_SUCCESS) {
2514 PMD_DRV_LOG(ERR, "Failure of clean lan tx queue context");
2518 err = i40e_set_lan_tx_queue_context(hw, pf_q, &tx_ctx);
2519 if (err != I40E_SUCCESS) {
2520 PMD_DRV_LOG(ERR, "Failure of set lan tx queue context");
2524 /* Now associate this queue with this PCI function */
2525 qtx_ctl = I40E_QTX_CTL_PF_QUEUE;
2526 qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT) &
2527 I40E_QTX_CTL_PF_INDX_MASK);
2528 I40E_WRITE_REG(hw, I40E_QTX_CTL(pf_q), qtx_ctl);
2529 I40E_WRITE_FLUSH(hw);
2531 txq->qtx_tail = hw->hw_addr + I40E_QTX_TAIL(pf_q);
2537 i40e_alloc_rx_queue_mbufs(struct i40e_rx_queue *rxq)
2539 struct i40e_rx_entry *rxe = rxq->sw_ring;
2543 for (i = 0; i < rxq->nb_rx_desc; i++) {
2544 volatile union i40e_rx_desc *rxd;
2545 struct rte_mbuf *mbuf = rte_mbuf_raw_alloc(rxq->mp);
2547 if (unlikely(!mbuf)) {
2548 PMD_DRV_LOG(ERR, "Failed to allocate mbuf for RX");
2552 rte_mbuf_refcnt_set(mbuf, 1);
2554 mbuf->data_off = RTE_PKTMBUF_HEADROOM;
2556 mbuf->port = rxq->port_id;
2559 rte_cpu_to_le_64(rte_mbuf_data_iova_default(mbuf));
2561 rxd = &rxq->rx_ring[i];
2562 rxd->read.pkt_addr = dma_addr;
2563 rxd->read.hdr_addr = 0;
2564 #ifndef RTE_LIBRTE_I40E_16BYTE_RX_DESC
2565 rxd->read.rsvd1 = 0;
2566 rxd->read.rsvd2 = 0;
2567 #endif /* RTE_LIBRTE_I40E_16BYTE_RX_DESC */
2576 * Calculate the buffer length, and check the jumbo frame
2577 * and maximum packet length.
2580 i40e_rx_queue_config(struct i40e_rx_queue *rxq)
2582 struct i40e_pf *pf = I40E_VSI_TO_PF(rxq->vsi);
2583 struct i40e_hw *hw = I40E_VSI_TO_HW(rxq->vsi);
2584 struct rte_eth_dev_data *data = pf->dev_data;
2585 uint16_t buf_size, len;
2587 buf_size = (uint16_t)(rte_pktmbuf_data_room_size(rxq->mp) -
2588 RTE_PKTMBUF_HEADROOM);
2590 switch (pf->flags & (I40E_FLAG_HEADER_SPLIT_DISABLED |
2591 I40E_FLAG_HEADER_SPLIT_ENABLED)) {
2592 case I40E_FLAG_HEADER_SPLIT_ENABLED: /* Not supported */
2593 rxq->rx_hdr_len = RTE_ALIGN(I40E_RXBUF_SZ_1024,
2594 (1 << I40E_RXQ_CTX_HBUFF_SHIFT));
2595 rxq->rx_buf_len = RTE_ALIGN(I40E_RXBUF_SZ_2048,
2596 (1 << I40E_RXQ_CTX_DBUFF_SHIFT));
2597 rxq->hs_mode = i40e_header_split_enabled;
2599 case I40E_FLAG_HEADER_SPLIT_DISABLED:
2601 rxq->rx_hdr_len = 0;
2602 rxq->rx_buf_len = RTE_ALIGN_FLOOR(buf_size,
2603 (1 << I40E_RXQ_CTX_DBUFF_SHIFT));
2604 rxq->hs_mode = i40e_header_split_none;
2608 len = hw->func_caps.rx_buf_chain_len * rxq->rx_buf_len;
2609 rxq->max_pkt_len = RTE_MIN(len, data->dev_conf.rxmode.max_rx_pkt_len);
2610 if (data->dev_conf.rxmode.offloads & DEV_RX_OFFLOAD_JUMBO_FRAME) {
2611 if (rxq->max_pkt_len <= ETHER_MAX_LEN ||
2612 rxq->max_pkt_len > I40E_FRAME_SIZE_MAX) {
2613 PMD_DRV_LOG(ERR, "maximum packet length must "
2614 "be larger than %u and smaller than %u,"
2615 "as jumbo frame is enabled",
2616 (uint32_t)ETHER_MAX_LEN,
2617 (uint32_t)I40E_FRAME_SIZE_MAX);
2618 return I40E_ERR_CONFIG;
2621 if (rxq->max_pkt_len < ETHER_MIN_LEN ||
2622 rxq->max_pkt_len > ETHER_MAX_LEN) {
2623 PMD_DRV_LOG(ERR, "maximum packet length must be "
2624 "larger than %u and smaller than %u, "
2625 "as jumbo frame is disabled",
2626 (uint32_t)ETHER_MIN_LEN,
2627 (uint32_t)ETHER_MAX_LEN);
2628 return I40E_ERR_CONFIG;
2635 /* Init the RX queue in hardware */
2637 i40e_rx_queue_init(struct i40e_rx_queue *rxq)
2639 int err = I40E_SUCCESS;
2640 struct i40e_hw *hw = I40E_VSI_TO_HW(rxq->vsi);
2641 struct rte_eth_dev_data *dev_data = I40E_VSI_TO_DEV_DATA(rxq->vsi);
2642 uint16_t pf_q = rxq->reg_idx;
2644 struct i40e_hmc_obj_rxq rx_ctx;
2646 err = i40e_rx_queue_config(rxq);
2648 PMD_DRV_LOG(ERR, "Failed to config RX queue");
2652 /* Clear the context structure first */
2653 memset(&rx_ctx, 0, sizeof(struct i40e_hmc_obj_rxq));
2654 rx_ctx.dbuff = rxq->rx_buf_len >> I40E_RXQ_CTX_DBUFF_SHIFT;
2655 rx_ctx.hbuff = rxq->rx_hdr_len >> I40E_RXQ_CTX_HBUFF_SHIFT;
2657 rx_ctx.base = rxq->rx_ring_phys_addr / I40E_QUEUE_BASE_ADDR_UNIT;
2658 rx_ctx.qlen = rxq->nb_rx_desc;
2659 #ifndef RTE_LIBRTE_I40E_16BYTE_RX_DESC
2662 rx_ctx.dtype = rxq->hs_mode;
2664 rx_ctx.hsplit_0 = I40E_HEADER_SPLIT_ALL;
2666 rx_ctx.hsplit_0 = I40E_HEADER_SPLIT_NONE;
2667 rx_ctx.rxmax = rxq->max_pkt_len;
2668 rx_ctx.tphrdesc_ena = 1;
2669 rx_ctx.tphwdesc_ena = 1;
2670 rx_ctx.tphdata_ena = 1;
2671 rx_ctx.tphhead_ena = 1;
2672 rx_ctx.lrxqthresh = 2;
2673 rx_ctx.crcstrip = (rxq->crc_len == 0) ? 1 : 0;
2675 /* showiv indicates if inner VLAN is stripped inside of tunnel
2676 * packet. When set it to 1, vlan information is stripped from
2677 * the inner header, but the hardware does not put it in the
2678 * descriptor. So set it zero by default.
2683 err = i40e_clear_lan_rx_queue_context(hw, pf_q);
2684 if (err != I40E_SUCCESS) {
2685 PMD_DRV_LOG(ERR, "Failed to clear LAN RX queue context");
2688 err = i40e_set_lan_rx_queue_context(hw, pf_q, &rx_ctx);
2689 if (err != I40E_SUCCESS) {
2690 PMD_DRV_LOG(ERR, "Failed to set LAN RX queue context");
2694 rxq->qrx_tail = hw->hw_addr + I40E_QRX_TAIL(pf_q);
2696 buf_size = (uint16_t)(rte_pktmbuf_data_room_size(rxq->mp) -
2697 RTE_PKTMBUF_HEADROOM);
2699 /* Check if scattered RX needs to be used. */
2700 if ((rxq->max_pkt_len + 2 * I40E_VLAN_TAG_SIZE) > buf_size) {
2701 dev_data->scattered_rx = 1;
2704 /* Init the RX tail regieter. */
2705 I40E_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
2711 i40e_dev_clear_queues(struct rte_eth_dev *dev)
2715 PMD_INIT_FUNC_TRACE();
2717 for (i = 0; i < dev->data->nb_tx_queues; i++) {
2718 if (!dev->data->tx_queues[i])
2720 i40e_tx_queue_release_mbufs(dev->data->tx_queues[i]);
2721 i40e_reset_tx_queue(dev->data->tx_queues[i]);
2724 for (i = 0; i < dev->data->nb_rx_queues; i++) {
2725 if (!dev->data->rx_queues[i])
2727 i40e_rx_queue_release_mbufs(dev->data->rx_queues[i]);
2728 i40e_reset_rx_queue(dev->data->rx_queues[i]);
2733 i40e_dev_free_queues(struct rte_eth_dev *dev)
2737 PMD_INIT_FUNC_TRACE();
2739 for (i = 0; i < dev->data->nb_rx_queues; i++) {
2740 if (!dev->data->rx_queues[i])
2742 i40e_dev_rx_queue_release(dev->data->rx_queues[i]);
2743 dev->data->rx_queues[i] = NULL;
2745 dev->data->nb_rx_queues = 0;
2747 for (i = 0; i < dev->data->nb_tx_queues; i++) {
2748 if (!dev->data->tx_queues[i])
2750 i40e_dev_tx_queue_release(dev->data->tx_queues[i]);
2751 dev->data->tx_queues[i] = NULL;
2753 dev->data->nb_tx_queues = 0;
2756 #define I40E_FDIR_NUM_TX_DESC I40E_MIN_RING_DESC
2757 #define I40E_FDIR_NUM_RX_DESC I40E_MIN_RING_DESC
2759 enum i40e_status_code
2760 i40e_fdir_setup_tx_resources(struct i40e_pf *pf)
2762 struct i40e_tx_queue *txq;
2763 const struct rte_memzone *tz = NULL;
2765 struct rte_eth_dev *dev;
2768 PMD_DRV_LOG(ERR, "PF is not available");
2769 return I40E_ERR_BAD_PTR;
2772 dev = pf->adapter->eth_dev;
2774 /* Allocate the TX queue data structure. */
2775 txq = rte_zmalloc_socket("i40e fdir tx queue",
2776 sizeof(struct i40e_tx_queue),
2777 RTE_CACHE_LINE_SIZE,
2780 PMD_DRV_LOG(ERR, "Failed to allocate memory for "
2781 "tx queue structure.");
2782 return I40E_ERR_NO_MEMORY;
2785 /* Allocate TX hardware ring descriptors. */
2786 ring_size = sizeof(struct i40e_tx_desc) * I40E_FDIR_NUM_TX_DESC;
2787 ring_size = RTE_ALIGN(ring_size, I40E_DMA_MEM_ALIGN);
2789 tz = rte_eth_dma_zone_reserve(dev, "fdir_tx_ring",
2790 I40E_FDIR_QUEUE_ID, ring_size,
2791 I40E_RING_BASE_ALIGN, SOCKET_ID_ANY);
2793 i40e_dev_tx_queue_release(txq);
2794 PMD_DRV_LOG(ERR, "Failed to reserve DMA memory for TX.");
2795 return I40E_ERR_NO_MEMORY;
2798 txq->nb_tx_desc = I40E_FDIR_NUM_TX_DESC;
2799 txq->queue_id = I40E_FDIR_QUEUE_ID;
2800 txq->reg_idx = pf->fdir.fdir_vsi->base_queue;
2801 txq->vsi = pf->fdir.fdir_vsi;
2803 txq->tx_ring_phys_addr = tz->iova;
2804 txq->tx_ring = (struct i40e_tx_desc *)tz->addr;
2806 * don't need to allocate software ring and reset for the fdir
2807 * program queue just set the queue has been configured.
2812 return I40E_SUCCESS;
2815 enum i40e_status_code
2816 i40e_fdir_setup_rx_resources(struct i40e_pf *pf)
2818 struct i40e_rx_queue *rxq;
2819 const struct rte_memzone *rz = NULL;
2821 struct rte_eth_dev *dev;
2824 PMD_DRV_LOG(ERR, "PF is not available");
2825 return I40E_ERR_BAD_PTR;
2828 dev = pf->adapter->eth_dev;
2830 /* Allocate the RX queue data structure. */
2831 rxq = rte_zmalloc_socket("i40e fdir rx queue",
2832 sizeof(struct i40e_rx_queue),
2833 RTE_CACHE_LINE_SIZE,
2836 PMD_DRV_LOG(ERR, "Failed to allocate memory for "
2837 "rx queue structure.");
2838 return I40E_ERR_NO_MEMORY;
2841 /* Allocate RX hardware ring descriptors. */
2842 ring_size = sizeof(union i40e_rx_desc) * I40E_FDIR_NUM_RX_DESC;
2843 ring_size = RTE_ALIGN(ring_size, I40E_DMA_MEM_ALIGN);
2845 rz = rte_eth_dma_zone_reserve(dev, "fdir_rx_ring",
2846 I40E_FDIR_QUEUE_ID, ring_size,
2847 I40E_RING_BASE_ALIGN, SOCKET_ID_ANY);
2849 i40e_dev_rx_queue_release(rxq);
2850 PMD_DRV_LOG(ERR, "Failed to reserve DMA memory for RX.");
2851 return I40E_ERR_NO_MEMORY;
2854 rxq->nb_rx_desc = I40E_FDIR_NUM_RX_DESC;
2855 rxq->queue_id = I40E_FDIR_QUEUE_ID;
2856 rxq->reg_idx = pf->fdir.fdir_vsi->base_queue;
2857 rxq->vsi = pf->fdir.fdir_vsi;
2859 rxq->rx_ring_phys_addr = rz->iova;
2860 memset(rz->addr, 0, I40E_FDIR_NUM_RX_DESC * sizeof(union i40e_rx_desc));
2861 rxq->rx_ring = (union i40e_rx_desc *)rz->addr;
2864 * Don't need to allocate software ring and reset for the fdir
2865 * rx queue, just set the queue has been configured.
2870 return I40E_SUCCESS;
2874 i40e_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
2875 struct rte_eth_rxq_info *qinfo)
2877 struct i40e_rx_queue *rxq;
2879 rxq = dev->data->rx_queues[queue_id];
2881 qinfo->mp = rxq->mp;
2882 qinfo->scattered_rx = dev->data->scattered_rx;
2883 qinfo->nb_desc = rxq->nb_rx_desc;
2885 qinfo->conf.rx_free_thresh = rxq->rx_free_thresh;
2886 qinfo->conf.rx_drop_en = rxq->drop_en;
2887 qinfo->conf.rx_deferred_start = rxq->rx_deferred_start;
2888 qinfo->conf.offloads = rxq->offloads;
2892 i40e_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
2893 struct rte_eth_txq_info *qinfo)
2895 struct i40e_tx_queue *txq;
2897 txq = dev->data->tx_queues[queue_id];
2899 qinfo->nb_desc = txq->nb_tx_desc;
2901 qinfo->conf.tx_thresh.pthresh = txq->pthresh;
2902 qinfo->conf.tx_thresh.hthresh = txq->hthresh;
2903 qinfo->conf.tx_thresh.wthresh = txq->wthresh;
2905 qinfo->conf.tx_free_thresh = txq->tx_free_thresh;
2906 qinfo->conf.tx_rs_thresh = txq->tx_rs_thresh;
2907 qinfo->conf.tx_deferred_start = txq->tx_deferred_start;
2908 qinfo->conf.offloads = txq->offloads;
2911 void __attribute__((cold))
2912 i40e_set_rx_function(struct rte_eth_dev *dev)
2914 struct i40e_adapter *ad =
2915 I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
2916 uint16_t rx_using_sse, i;
2917 /* In order to allow Vector Rx there are a few configuration
2918 * conditions to be met and Rx Bulk Allocation should be allowed.
2920 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
2921 if (i40e_rx_vec_dev_conf_condition_check(dev) ||
2922 !ad->rx_bulk_alloc_allowed) {
2923 PMD_INIT_LOG(DEBUG, "Port[%d] doesn't meet"
2924 " Vector Rx preconditions",
2925 dev->data->port_id);
2927 ad->rx_vec_allowed = false;
2929 if (ad->rx_vec_allowed) {
2930 for (i = 0; i < dev->data->nb_rx_queues; i++) {
2931 struct i40e_rx_queue *rxq =
2932 dev->data->rx_queues[i];
2934 if (rxq && i40e_rxq_vec_setup(rxq)) {
2935 ad->rx_vec_allowed = false;
2942 if (dev->data->scattered_rx) {
2943 /* Set the non-LRO scattered callback: there are Vector and
2944 * single allocation versions.
2946 if (ad->rx_vec_allowed) {
2947 PMD_INIT_LOG(DEBUG, "Using Vector Scattered Rx "
2948 "callback (port=%d).",
2949 dev->data->port_id);
2951 dev->rx_pkt_burst = i40e_recv_scattered_pkts_vec;
2954 * since AVX frequency can be different to base
2955 * frequency, limit use of AVX2 version to later
2956 * plaforms, not all those that could theoretically
2959 if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F))
2961 i40e_recv_scattered_pkts_vec_avx2;
2964 PMD_INIT_LOG(DEBUG, "Using a Scattered with bulk "
2965 "allocation callback (port=%d).",
2966 dev->data->port_id);
2967 dev->rx_pkt_burst = i40e_recv_scattered_pkts;
2969 /* If parameters allow we are going to choose between the following
2973 * - Single buffer allocation (the simplest one)
2975 } else if (ad->rx_vec_allowed) {
2976 PMD_INIT_LOG(DEBUG, "Vector rx enabled, please make sure RX "
2977 "burst size no less than %d (port=%d).",
2978 RTE_I40E_DESCS_PER_LOOP,
2979 dev->data->port_id);
2981 dev->rx_pkt_burst = i40e_recv_pkts_vec;
2984 * since AVX frequency can be different to base
2985 * frequency, limit use of AVX2 version to later
2986 * plaforms, not all those that could theoretically
2989 if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F))
2990 dev->rx_pkt_burst = i40e_recv_pkts_vec_avx2;
2992 } else if (ad->rx_bulk_alloc_allowed) {
2993 PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions are "
2994 "satisfied. Rx Burst Bulk Alloc function "
2995 "will be used on port=%d.",
2996 dev->data->port_id);
2998 dev->rx_pkt_burst = i40e_recv_pkts_bulk_alloc;
3000 PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions are not "
3001 "satisfied, or Scattered Rx is requested "
3003 dev->data->port_id);
3005 dev->rx_pkt_burst = i40e_recv_pkts;
3008 /* Propagate information about RX function choice through all queues. */
3009 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
3011 (dev->rx_pkt_burst == i40e_recv_scattered_pkts_vec ||
3012 dev->rx_pkt_burst == i40e_recv_pkts_vec ||
3013 dev->rx_pkt_burst == i40e_recv_scattered_pkts_vec_avx2 ||
3014 dev->rx_pkt_burst == i40e_recv_pkts_vec_avx2);
3016 for (i = 0; i < dev->data->nb_rx_queues; i++) {
3017 struct i40e_rx_queue *rxq = dev->data->rx_queues[i];
3020 rxq->rx_using_sse = rx_using_sse;
3025 void __attribute__((cold))
3026 i40e_set_tx_function_flag(struct rte_eth_dev *dev, struct i40e_tx_queue *txq)
3028 struct i40e_adapter *ad =
3029 I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
3031 /* Use a simple Tx queue if possible (only fast free is allowed) */
3032 ad->tx_simple_allowed =
3034 (txq->offloads & DEV_TX_OFFLOAD_MBUF_FAST_FREE) &&
3035 txq->tx_rs_thresh >= RTE_PMD_I40E_TX_MAX_BURST);
3036 ad->tx_vec_allowed = (ad->tx_simple_allowed &&
3037 txq->tx_rs_thresh <= RTE_I40E_TX_MAX_FREE_BUF_SZ);
3039 if (ad->tx_vec_allowed)
3040 PMD_INIT_LOG(DEBUG, "Vector Tx can be enabled on Tx queue %u.",
3042 else if (ad->tx_simple_allowed)
3043 PMD_INIT_LOG(DEBUG, "Simple Tx can be enabled on Tx queue %u.",
3047 "Neither simple nor vector Tx enabled on Tx queue %u\n",
3051 void __attribute__((cold))
3052 i40e_set_tx_function(struct rte_eth_dev *dev)
3054 struct i40e_adapter *ad =
3055 I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
3058 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
3059 if (ad->tx_vec_allowed) {
3060 for (i = 0; i < dev->data->nb_tx_queues; i++) {
3061 struct i40e_tx_queue *txq =
3062 dev->data->tx_queues[i];
3064 if (txq && i40e_txq_vec_setup(txq)) {
3065 ad->tx_vec_allowed = false;
3072 if (ad->tx_simple_allowed) {
3073 if (ad->tx_vec_allowed) {
3074 PMD_INIT_LOG(DEBUG, "Vector tx finally be used.");
3075 dev->tx_pkt_burst = i40e_xmit_pkts_vec;
3078 * since AVX frequency can be different to base
3079 * frequency, limit use of AVX2 version to later
3080 * plaforms, not all those that could theoretically
3083 if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F))
3084 dev->tx_pkt_burst = i40e_xmit_pkts_vec_avx2;
3087 PMD_INIT_LOG(DEBUG, "Simple tx finally be used.");
3088 dev->tx_pkt_burst = i40e_xmit_pkts_simple;
3090 dev->tx_pkt_prepare = NULL;
3092 PMD_INIT_LOG(DEBUG, "Xmit tx finally be used.");
3093 dev->tx_pkt_burst = i40e_xmit_pkts;
3094 dev->tx_pkt_prepare = i40e_prep_pkts;
3098 void __attribute__((cold))
3099 i40e_set_default_ptype_table(struct rte_eth_dev *dev)
3101 struct i40e_adapter *ad =
3102 I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
3105 for (i = 0; i < I40E_MAX_PKT_TYPE; i++)
3106 ad->ptype_tbl[i] = i40e_get_default_pkt_type(i);
3109 void __attribute__((cold))
3110 i40e_set_default_pctype_table(struct rte_eth_dev *dev)
3112 struct i40e_adapter *ad =
3113 I40E_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
3114 struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
3117 for (i = 0; i < I40E_FLOW_TYPE_MAX; i++)
3118 ad->pctypes_tbl[i] = 0ULL;
3119 ad->flow_types_mask = 0ULL;
3120 ad->pctypes_mask = 0ULL;
3122 ad->pctypes_tbl[RTE_ETH_FLOW_FRAG_IPV4] =
3123 (1ULL << I40E_FILTER_PCTYPE_FRAG_IPV4);
3124 ad->pctypes_tbl[RTE_ETH_FLOW_NONFRAG_IPV4_UDP] =
3125 (1ULL << I40E_FILTER_PCTYPE_NONF_IPV4_UDP);
3126 ad->pctypes_tbl[RTE_ETH_FLOW_NONFRAG_IPV4_TCP] =
3127 (1ULL << I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
3128 ad->pctypes_tbl[RTE_ETH_FLOW_NONFRAG_IPV4_SCTP] =
3129 (1ULL << I40E_FILTER_PCTYPE_NONF_IPV4_SCTP);
3130 ad->pctypes_tbl[RTE_ETH_FLOW_NONFRAG_IPV4_OTHER] =
3131 (1ULL << I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
3132 ad->pctypes_tbl[RTE_ETH_FLOW_FRAG_IPV6] =
3133 (1ULL << I40E_FILTER_PCTYPE_FRAG_IPV6);
3134 ad->pctypes_tbl[RTE_ETH_FLOW_NONFRAG_IPV6_UDP] =
3135 (1ULL << I40E_FILTER_PCTYPE_NONF_IPV6_UDP);
3136 ad->pctypes_tbl[RTE_ETH_FLOW_NONFRAG_IPV6_TCP] =
3137 (1ULL << I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
3138 ad->pctypes_tbl[RTE_ETH_FLOW_NONFRAG_IPV6_SCTP] =
3139 (1ULL << I40E_FILTER_PCTYPE_NONF_IPV6_SCTP);
3140 ad->pctypes_tbl[RTE_ETH_FLOW_NONFRAG_IPV6_OTHER] =
3141 (1ULL << I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
3142 ad->pctypes_tbl[RTE_ETH_FLOW_L2_PAYLOAD] =
3143 (1ULL << I40E_FILTER_PCTYPE_L2_PAYLOAD);
3145 if (hw->mac.type == I40E_MAC_X722) {
3146 ad->pctypes_tbl[RTE_ETH_FLOW_NONFRAG_IPV4_UDP] |=
3147 (1ULL << I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP);
3148 ad->pctypes_tbl[RTE_ETH_FLOW_NONFRAG_IPV4_UDP] |=
3149 (1ULL << I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP);
3150 ad->pctypes_tbl[RTE_ETH_FLOW_NONFRAG_IPV4_TCP] |=
3151 (1ULL << I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
3152 ad->pctypes_tbl[RTE_ETH_FLOW_NONFRAG_IPV6_UDP] |=
3153 (1ULL << I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP);
3154 ad->pctypes_tbl[RTE_ETH_FLOW_NONFRAG_IPV6_UDP] |=
3155 (1ULL << I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP);
3156 ad->pctypes_tbl[RTE_ETH_FLOW_NONFRAG_IPV6_TCP] |=
3157 (1ULL << I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK);
3160 for (i = 0; i < I40E_FLOW_TYPE_MAX; i++) {
3161 if (ad->pctypes_tbl[i])
3162 ad->flow_types_mask |= (1ULL << i);
3163 ad->pctypes_mask |= ad->pctypes_tbl[i];
3167 /* Stubs needed for linkage when CONFIG_RTE_I40E_INC_VECTOR is set to 'n' */
3168 int __attribute__((weak))
3169 i40e_rx_vec_dev_conf_condition_check(struct rte_eth_dev __rte_unused *dev)
3174 uint16_t __attribute__((weak))
3176 void __rte_unused *rx_queue,
3177 struct rte_mbuf __rte_unused **rx_pkts,
3178 uint16_t __rte_unused nb_pkts)
3183 uint16_t __attribute__((weak))
3184 i40e_recv_scattered_pkts_vec(
3185 void __rte_unused *rx_queue,
3186 struct rte_mbuf __rte_unused **rx_pkts,
3187 uint16_t __rte_unused nb_pkts)
3192 uint16_t __attribute__((weak))
3193 i40e_recv_pkts_vec_avx2(void __rte_unused *rx_queue,
3194 struct rte_mbuf __rte_unused **rx_pkts,
3195 uint16_t __rte_unused nb_pkts)
3200 uint16_t __attribute__((weak))
3201 i40e_recv_scattered_pkts_vec_avx2(void __rte_unused *rx_queue,
3202 struct rte_mbuf __rte_unused **rx_pkts,
3203 uint16_t __rte_unused nb_pkts)
3208 int __attribute__((weak))
3209 i40e_rxq_vec_setup(struct i40e_rx_queue __rte_unused *rxq)
3214 int __attribute__((weak))
3215 i40e_txq_vec_setup(struct i40e_tx_queue __rte_unused *txq)
3220 void __attribute__((weak))
3221 i40e_rx_queue_release_mbufs_vec(struct i40e_rx_queue __rte_unused*rxq)
3226 uint16_t __attribute__((weak))
3227 i40e_xmit_fixed_burst_vec(void __rte_unused * tx_queue,
3228 struct rte_mbuf __rte_unused **tx_pkts,
3229 uint16_t __rte_unused nb_pkts)
3234 uint16_t __attribute__((weak))
3235 i40e_xmit_pkts_vec_avx2(void __rte_unused * tx_queue,
3236 struct rte_mbuf __rte_unused **tx_pkts,
3237 uint16_t __rte_unused nb_pkts)