4 * Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
5 * Copyright 2014 6WIND S.A.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * * Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * * Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
18 * * Neither the name of Intel Corporation nor the names of its
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
25 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
26 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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32 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 #include <sys/queue.h>
46 #include <rte_byteorder.h>
47 #include <rte_common.h>
48 #include <rte_cycles.h>
50 #include <rte_debug.h>
51 #include <rte_interrupts.h>
53 #include <rte_memory.h>
54 #include <rte_memzone.h>
55 #include <rte_launch.h>
57 #include <rte_per_lcore.h>
58 #include <rte_lcore.h>
59 #include <rte_atomic.h>
60 #include <rte_branch_prediction.h>
61 #include <rte_mempool.h>
62 #include <rte_malloc.h>
64 #include <rte_ether.h>
65 #include <rte_ethdev.h>
66 #include <rte_prefetch.h>
70 #include <rte_string_fns.h>
71 #include <rte_errno.h>
75 #include "ixgbe_logs.h"
76 #include "base/ixgbe_api.h"
77 #include "base/ixgbe_vf.h"
78 #include "ixgbe_ethdev.h"
79 #include "base/ixgbe_dcb.h"
80 #include "base/ixgbe_common.h"
81 #include "ixgbe_rxtx.h"
83 #ifdef RTE_LIBRTE_IEEE1588
84 #define IXGBE_TX_IEEE1588_TMST PKT_TX_IEEE1588_TMST
86 #define IXGBE_TX_IEEE1588_TMST 0
88 /* Bit Mask to indicate what bits required for building TX context */
89 #define IXGBE_TX_OFFLOAD_MASK ( \
95 PKT_TX_OUTER_IP_CKSUM | \
96 IXGBE_TX_IEEE1588_TMST)
98 #define IXGBE_TX_OFFLOAD_NOTSUP_MASK \
99 (PKT_TX_OFFLOAD_MASK ^ IXGBE_TX_OFFLOAD_MASK)
102 #define RTE_PMD_USE_PREFETCH
105 #ifdef RTE_PMD_USE_PREFETCH
107 * Prefetch a cache line into all cache levels.
109 #define rte_ixgbe_prefetch(p) rte_prefetch0(p)
111 #define rte_ixgbe_prefetch(p) do {} while (0)
114 /*********************************************************************
118 **********************************************************************/
121 * Check for descriptors with their DD bit set and free mbufs.
122 * Return the total number of buffers freed.
124 static inline int __attribute__((always_inline))
125 ixgbe_tx_free_bufs(struct ixgbe_tx_queue *txq)
127 struct ixgbe_tx_entry *txep;
130 struct rte_mbuf *m, *free[RTE_IXGBE_TX_MAX_FREE_BUF_SZ];
132 /* check DD bit on threshold descriptor */
133 status = txq->tx_ring[txq->tx_next_dd].wb.status;
134 if (!(status & rte_cpu_to_le_32(IXGBE_ADVTXD_STAT_DD)))
138 * first buffer to free from S/W ring is at index
139 * tx_next_dd - (tx_rs_thresh-1)
141 txep = &(txq->sw_ring[txq->tx_next_dd - (txq->tx_rs_thresh - 1)]);
143 for (i = 0; i < txq->tx_rs_thresh; ++i, ++txep) {
144 /* free buffers one at a time */
145 m = __rte_pktmbuf_prefree_seg(txep->mbuf);
148 if (unlikely(m == NULL))
151 if (nb_free >= RTE_IXGBE_TX_MAX_FREE_BUF_SZ ||
152 (nb_free > 0 && m->pool != free[0]->pool)) {
153 rte_mempool_put_bulk(free[0]->pool,
154 (void **)free, nb_free);
162 rte_mempool_put_bulk(free[0]->pool, (void **)free, nb_free);
164 /* buffers were freed, update counters */
165 txq->nb_tx_free = (uint16_t)(txq->nb_tx_free + txq->tx_rs_thresh);
166 txq->tx_next_dd = (uint16_t)(txq->tx_next_dd + txq->tx_rs_thresh);
167 if (txq->tx_next_dd >= txq->nb_tx_desc)
168 txq->tx_next_dd = (uint16_t)(txq->tx_rs_thresh - 1);
170 return txq->tx_rs_thresh;
173 /* Populate 4 descriptors with data from 4 mbufs */
175 tx4(volatile union ixgbe_adv_tx_desc *txdp, struct rte_mbuf **pkts)
177 uint64_t buf_dma_addr;
181 for (i = 0; i < 4; ++i, ++txdp, ++pkts) {
182 buf_dma_addr = rte_mbuf_data_dma_addr(*pkts);
183 pkt_len = (*pkts)->data_len;
185 /* write data to descriptor */
186 txdp->read.buffer_addr = rte_cpu_to_le_64(buf_dma_addr);
188 txdp->read.cmd_type_len =
189 rte_cpu_to_le_32((uint32_t)DCMD_DTYP_FLAGS | pkt_len);
191 txdp->read.olinfo_status =
192 rte_cpu_to_le_32(pkt_len << IXGBE_ADVTXD_PAYLEN_SHIFT);
194 rte_prefetch0(&(*pkts)->pool);
198 /* Populate 1 descriptor with data from 1 mbuf */
200 tx1(volatile union ixgbe_adv_tx_desc *txdp, struct rte_mbuf **pkts)
202 uint64_t buf_dma_addr;
205 buf_dma_addr = rte_mbuf_data_dma_addr(*pkts);
206 pkt_len = (*pkts)->data_len;
208 /* write data to descriptor */
209 txdp->read.buffer_addr = rte_cpu_to_le_64(buf_dma_addr);
210 txdp->read.cmd_type_len =
211 rte_cpu_to_le_32((uint32_t)DCMD_DTYP_FLAGS | pkt_len);
212 txdp->read.olinfo_status =
213 rte_cpu_to_le_32(pkt_len << IXGBE_ADVTXD_PAYLEN_SHIFT);
214 rte_prefetch0(&(*pkts)->pool);
218 * Fill H/W descriptor ring with mbuf data.
219 * Copy mbuf pointers to the S/W ring.
222 ixgbe_tx_fill_hw_ring(struct ixgbe_tx_queue *txq, struct rte_mbuf **pkts,
225 volatile union ixgbe_adv_tx_desc *txdp = &(txq->tx_ring[txq->tx_tail]);
226 struct ixgbe_tx_entry *txep = &(txq->sw_ring[txq->tx_tail]);
227 const int N_PER_LOOP = 4;
228 const int N_PER_LOOP_MASK = N_PER_LOOP-1;
229 int mainpart, leftover;
233 * Process most of the packets in chunks of N pkts. Any
234 * leftover packets will get processed one at a time.
236 mainpart = (nb_pkts & ((uint32_t) ~N_PER_LOOP_MASK));
237 leftover = (nb_pkts & ((uint32_t) N_PER_LOOP_MASK));
238 for (i = 0; i < mainpart; i += N_PER_LOOP) {
239 /* Copy N mbuf pointers to the S/W ring */
240 for (j = 0; j < N_PER_LOOP; ++j) {
241 (txep + i + j)->mbuf = *(pkts + i + j);
243 tx4(txdp + i, pkts + i);
246 if (unlikely(leftover > 0)) {
247 for (i = 0; i < leftover; ++i) {
248 (txep + mainpart + i)->mbuf = *(pkts + mainpart + i);
249 tx1(txdp + mainpart + i, pkts + mainpart + i);
254 static inline uint16_t
255 tx_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
258 struct ixgbe_tx_queue *txq = (struct ixgbe_tx_queue *)tx_queue;
259 volatile union ixgbe_adv_tx_desc *tx_r = txq->tx_ring;
263 * Begin scanning the H/W ring for done descriptors when the
264 * number of available descriptors drops below tx_free_thresh. For
265 * each done descriptor, free the associated buffer.
267 if (txq->nb_tx_free < txq->tx_free_thresh)
268 ixgbe_tx_free_bufs(txq);
270 /* Only use descriptors that are available */
271 nb_pkts = (uint16_t)RTE_MIN(txq->nb_tx_free, nb_pkts);
272 if (unlikely(nb_pkts == 0))
275 /* Use exactly nb_pkts descriptors */
276 txq->nb_tx_free = (uint16_t)(txq->nb_tx_free - nb_pkts);
279 * At this point, we know there are enough descriptors in the
280 * ring to transmit all the packets. This assumes that each
281 * mbuf contains a single segment, and that no new offloads
282 * are expected, which would require a new context descriptor.
286 * See if we're going to wrap-around. If so, handle the top
287 * of the descriptor ring first, then do the bottom. If not,
288 * the processing looks just like the "bottom" part anyway...
290 if ((txq->tx_tail + nb_pkts) > txq->nb_tx_desc) {
291 n = (uint16_t)(txq->nb_tx_desc - txq->tx_tail);
292 ixgbe_tx_fill_hw_ring(txq, tx_pkts, n);
295 * We know that the last descriptor in the ring will need to
296 * have its RS bit set because tx_rs_thresh has to be
297 * a divisor of the ring size
299 tx_r[txq->tx_next_rs].read.cmd_type_len |=
300 rte_cpu_to_le_32(IXGBE_ADVTXD_DCMD_RS);
301 txq->tx_next_rs = (uint16_t)(txq->tx_rs_thresh - 1);
306 /* Fill H/W descriptor ring with mbuf data */
307 ixgbe_tx_fill_hw_ring(txq, tx_pkts + n, (uint16_t)(nb_pkts - n));
308 txq->tx_tail = (uint16_t)(txq->tx_tail + (nb_pkts - n));
311 * Determine if RS bit should be set
312 * This is what we actually want:
313 * if ((txq->tx_tail - 1) >= txq->tx_next_rs)
314 * but instead of subtracting 1 and doing >=, we can just do
315 * greater than without subtracting.
317 if (txq->tx_tail > txq->tx_next_rs) {
318 tx_r[txq->tx_next_rs].read.cmd_type_len |=
319 rte_cpu_to_le_32(IXGBE_ADVTXD_DCMD_RS);
320 txq->tx_next_rs = (uint16_t)(txq->tx_next_rs +
322 if (txq->tx_next_rs >= txq->nb_tx_desc)
323 txq->tx_next_rs = (uint16_t)(txq->tx_rs_thresh - 1);
327 * Check for wrap-around. This would only happen if we used
328 * up to the last descriptor in the ring, no more, no less.
330 if (txq->tx_tail >= txq->nb_tx_desc)
333 /* update tail pointer */
335 IXGBE_PCI_REG_WRITE_RELAXED(txq->tdt_reg_addr, txq->tx_tail);
341 ixgbe_xmit_pkts_simple(void *tx_queue, struct rte_mbuf **tx_pkts,
346 /* Try to transmit at least chunks of TX_MAX_BURST pkts */
347 if (likely(nb_pkts <= RTE_PMD_IXGBE_TX_MAX_BURST))
348 return tx_xmit_pkts(tx_queue, tx_pkts, nb_pkts);
350 /* transmit more than the max burst, in chunks of TX_MAX_BURST */
355 n = (uint16_t)RTE_MIN(nb_pkts, RTE_PMD_IXGBE_TX_MAX_BURST);
356 ret = tx_xmit_pkts(tx_queue, &(tx_pkts[nb_tx]), n);
357 nb_tx = (uint16_t)(nb_tx + ret);
358 nb_pkts = (uint16_t)(nb_pkts - ret);
367 ixgbe_set_xmit_ctx(struct ixgbe_tx_queue *txq,
368 volatile struct ixgbe_adv_tx_context_desc *ctx_txd,
369 uint64_t ol_flags, union ixgbe_tx_offload tx_offload)
371 uint32_t type_tucmd_mlhl;
372 uint32_t mss_l4len_idx = 0;
374 uint32_t vlan_macip_lens;
375 union ixgbe_tx_offload tx_offload_mask;
376 uint32_t seqnum_seed = 0;
378 ctx_idx = txq->ctx_curr;
379 tx_offload_mask.data[0] = 0;
380 tx_offload_mask.data[1] = 0;
383 /* Specify which HW CTX to upload. */
384 mss_l4len_idx |= (ctx_idx << IXGBE_ADVTXD_IDX_SHIFT);
386 if (ol_flags & PKT_TX_VLAN_PKT) {
387 tx_offload_mask.vlan_tci |= ~0;
390 /* check if TCP segmentation required for this packet */
391 if (ol_flags & PKT_TX_TCP_SEG) {
392 /* implies IP cksum in IPv4 */
393 if (ol_flags & PKT_TX_IP_CKSUM)
394 type_tucmd_mlhl = IXGBE_ADVTXD_TUCMD_IPV4 |
395 IXGBE_ADVTXD_TUCMD_L4T_TCP |
396 IXGBE_ADVTXD_DTYP_CTXT | IXGBE_ADVTXD_DCMD_DEXT;
398 type_tucmd_mlhl = IXGBE_ADVTXD_TUCMD_IPV6 |
399 IXGBE_ADVTXD_TUCMD_L4T_TCP |
400 IXGBE_ADVTXD_DTYP_CTXT | IXGBE_ADVTXD_DCMD_DEXT;
402 tx_offload_mask.l2_len |= ~0;
403 tx_offload_mask.l3_len |= ~0;
404 tx_offload_mask.l4_len |= ~0;
405 tx_offload_mask.tso_segsz |= ~0;
406 mss_l4len_idx |= tx_offload.tso_segsz << IXGBE_ADVTXD_MSS_SHIFT;
407 mss_l4len_idx |= tx_offload.l4_len << IXGBE_ADVTXD_L4LEN_SHIFT;
408 } else { /* no TSO, check if hardware checksum is needed */
409 if (ol_flags & PKT_TX_IP_CKSUM) {
410 type_tucmd_mlhl = IXGBE_ADVTXD_TUCMD_IPV4;
411 tx_offload_mask.l2_len |= ~0;
412 tx_offload_mask.l3_len |= ~0;
415 switch (ol_flags & PKT_TX_L4_MASK) {
416 case PKT_TX_UDP_CKSUM:
417 type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_L4T_UDP |
418 IXGBE_ADVTXD_DTYP_CTXT | IXGBE_ADVTXD_DCMD_DEXT;
419 mss_l4len_idx |= sizeof(struct udp_hdr) << IXGBE_ADVTXD_L4LEN_SHIFT;
420 tx_offload_mask.l2_len |= ~0;
421 tx_offload_mask.l3_len |= ~0;
423 case PKT_TX_TCP_CKSUM:
424 type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_L4T_TCP |
425 IXGBE_ADVTXD_DTYP_CTXT | IXGBE_ADVTXD_DCMD_DEXT;
426 mss_l4len_idx |= sizeof(struct tcp_hdr) << IXGBE_ADVTXD_L4LEN_SHIFT;
427 tx_offload_mask.l2_len |= ~0;
428 tx_offload_mask.l3_len |= ~0;
430 case PKT_TX_SCTP_CKSUM:
431 type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_L4T_SCTP |
432 IXGBE_ADVTXD_DTYP_CTXT | IXGBE_ADVTXD_DCMD_DEXT;
433 mss_l4len_idx |= sizeof(struct sctp_hdr) << IXGBE_ADVTXD_L4LEN_SHIFT;
434 tx_offload_mask.l2_len |= ~0;
435 tx_offload_mask.l3_len |= ~0;
438 type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_L4T_RSV |
439 IXGBE_ADVTXD_DTYP_CTXT | IXGBE_ADVTXD_DCMD_DEXT;
444 if (ol_flags & PKT_TX_OUTER_IP_CKSUM) {
445 tx_offload_mask.outer_l2_len |= ~0;
446 tx_offload_mask.outer_l3_len |= ~0;
447 tx_offload_mask.l2_len |= ~0;
448 seqnum_seed |= tx_offload.outer_l3_len
449 << IXGBE_ADVTXD_OUTER_IPLEN;
450 seqnum_seed |= tx_offload.l2_len
451 << IXGBE_ADVTXD_TUNNEL_LEN;
454 txq->ctx_cache[ctx_idx].flags = ol_flags;
455 txq->ctx_cache[ctx_idx].tx_offload.data[0] =
456 tx_offload_mask.data[0] & tx_offload.data[0];
457 txq->ctx_cache[ctx_idx].tx_offload.data[1] =
458 tx_offload_mask.data[1] & tx_offload.data[1];
459 txq->ctx_cache[ctx_idx].tx_offload_mask = tx_offload_mask;
461 ctx_txd->type_tucmd_mlhl = rte_cpu_to_le_32(type_tucmd_mlhl);
462 vlan_macip_lens = tx_offload.l3_len;
463 if (ol_flags & PKT_TX_OUTER_IP_CKSUM)
464 vlan_macip_lens |= (tx_offload.outer_l2_len <<
465 IXGBE_ADVTXD_MACLEN_SHIFT);
467 vlan_macip_lens |= (tx_offload.l2_len <<
468 IXGBE_ADVTXD_MACLEN_SHIFT);
469 vlan_macip_lens |= ((uint32_t)tx_offload.vlan_tci << IXGBE_ADVTXD_VLAN_SHIFT);
470 ctx_txd->vlan_macip_lens = rte_cpu_to_le_32(vlan_macip_lens);
471 ctx_txd->mss_l4len_idx = rte_cpu_to_le_32(mss_l4len_idx);
472 ctx_txd->seqnum_seed = seqnum_seed;
476 * Check which hardware context can be used. Use the existing match
477 * or create a new context descriptor.
479 static inline uint32_t
480 what_advctx_update(struct ixgbe_tx_queue *txq, uint64_t flags,
481 union ixgbe_tx_offload tx_offload)
483 /* If match with the current used context */
484 if (likely((txq->ctx_cache[txq->ctx_curr].flags == flags) &&
485 (txq->ctx_cache[txq->ctx_curr].tx_offload.data[0] ==
486 (txq->ctx_cache[txq->ctx_curr].tx_offload_mask.data[0]
487 & tx_offload.data[0])) &&
488 (txq->ctx_cache[txq->ctx_curr].tx_offload.data[1] ==
489 (txq->ctx_cache[txq->ctx_curr].tx_offload_mask.data[1]
490 & tx_offload.data[1]))))
491 return txq->ctx_curr;
493 /* What if match with the next context */
495 if (likely((txq->ctx_cache[txq->ctx_curr].flags == flags) &&
496 (txq->ctx_cache[txq->ctx_curr].tx_offload.data[0] ==
497 (txq->ctx_cache[txq->ctx_curr].tx_offload_mask.data[0]
498 & tx_offload.data[0])) &&
499 (txq->ctx_cache[txq->ctx_curr].tx_offload.data[1] ==
500 (txq->ctx_cache[txq->ctx_curr].tx_offload_mask.data[1]
501 & tx_offload.data[1]))))
502 return txq->ctx_curr;
504 /* Mismatch, use the previous context */
505 return IXGBE_CTX_NUM;
508 static inline uint32_t
509 tx_desc_cksum_flags_to_olinfo(uint64_t ol_flags)
513 if ((ol_flags & PKT_TX_L4_MASK) != PKT_TX_L4_NO_CKSUM)
514 tmp |= IXGBE_ADVTXD_POPTS_TXSM;
515 if (ol_flags & PKT_TX_IP_CKSUM)
516 tmp |= IXGBE_ADVTXD_POPTS_IXSM;
517 if (ol_flags & PKT_TX_TCP_SEG)
518 tmp |= IXGBE_ADVTXD_POPTS_TXSM;
522 static inline uint32_t
523 tx_desc_ol_flags_to_cmdtype(uint64_t ol_flags)
525 uint32_t cmdtype = 0;
527 if (ol_flags & PKT_TX_VLAN_PKT)
528 cmdtype |= IXGBE_ADVTXD_DCMD_VLE;
529 if (ol_flags & PKT_TX_TCP_SEG)
530 cmdtype |= IXGBE_ADVTXD_DCMD_TSE;
531 if (ol_flags & PKT_TX_OUTER_IP_CKSUM)
532 cmdtype |= (1 << IXGBE_ADVTXD_OUTERIPCS_SHIFT);
533 if (ol_flags & PKT_TX_MACSEC)
534 cmdtype |= IXGBE_ADVTXD_MAC_LINKSEC;
538 /* Default RS bit threshold values */
539 #ifndef DEFAULT_TX_RS_THRESH
540 #define DEFAULT_TX_RS_THRESH 32
542 #ifndef DEFAULT_TX_FREE_THRESH
543 #define DEFAULT_TX_FREE_THRESH 32
546 /* Reset transmit descriptors after they have been used */
548 ixgbe_xmit_cleanup(struct ixgbe_tx_queue *txq)
550 struct ixgbe_tx_entry *sw_ring = txq->sw_ring;
551 volatile union ixgbe_adv_tx_desc *txr = txq->tx_ring;
552 uint16_t last_desc_cleaned = txq->last_desc_cleaned;
553 uint16_t nb_tx_desc = txq->nb_tx_desc;
554 uint16_t desc_to_clean_to;
555 uint16_t nb_tx_to_clean;
558 /* Determine the last descriptor needing to be cleaned */
559 desc_to_clean_to = (uint16_t)(last_desc_cleaned + txq->tx_rs_thresh);
560 if (desc_to_clean_to >= nb_tx_desc)
561 desc_to_clean_to = (uint16_t)(desc_to_clean_to - nb_tx_desc);
563 /* Check to make sure the last descriptor to clean is done */
564 desc_to_clean_to = sw_ring[desc_to_clean_to].last_id;
565 status = txr[desc_to_clean_to].wb.status;
566 if (!(status & rte_cpu_to_le_32(IXGBE_TXD_STAT_DD))) {
567 PMD_TX_FREE_LOG(DEBUG,
568 "TX descriptor %4u is not done"
569 "(port=%d queue=%d)",
571 txq->port_id, txq->queue_id);
572 /* Failed to clean any descriptors, better luck next time */
576 /* Figure out how many descriptors will be cleaned */
577 if (last_desc_cleaned > desc_to_clean_to)
578 nb_tx_to_clean = (uint16_t)((nb_tx_desc - last_desc_cleaned) +
581 nb_tx_to_clean = (uint16_t)(desc_to_clean_to -
584 PMD_TX_FREE_LOG(DEBUG,
585 "Cleaning %4u TX descriptors: %4u to %4u "
586 "(port=%d queue=%d)",
587 nb_tx_to_clean, last_desc_cleaned, desc_to_clean_to,
588 txq->port_id, txq->queue_id);
591 * The last descriptor to clean is done, so that means all the
592 * descriptors from the last descriptor that was cleaned
593 * up to the last descriptor with the RS bit set
594 * are done. Only reset the threshold descriptor.
596 txr[desc_to_clean_to].wb.status = 0;
598 /* Update the txq to reflect the last descriptor that was cleaned */
599 txq->last_desc_cleaned = desc_to_clean_to;
600 txq->nb_tx_free = (uint16_t)(txq->nb_tx_free + nb_tx_to_clean);
607 ixgbe_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
610 struct ixgbe_tx_queue *txq;
611 struct ixgbe_tx_entry *sw_ring;
612 struct ixgbe_tx_entry *txe, *txn;
613 volatile union ixgbe_adv_tx_desc *txr;
614 volatile union ixgbe_adv_tx_desc *txd, *txp;
615 struct rte_mbuf *tx_pkt;
616 struct rte_mbuf *m_seg;
617 uint64_t buf_dma_addr;
618 uint32_t olinfo_status;
619 uint32_t cmd_type_len;
630 union ixgbe_tx_offload tx_offload;
632 tx_offload.data[0] = 0;
633 tx_offload.data[1] = 0;
635 sw_ring = txq->sw_ring;
637 tx_id = txq->tx_tail;
638 txe = &sw_ring[tx_id];
641 /* Determine if the descriptor ring needs to be cleaned. */
642 if (txq->nb_tx_free < txq->tx_free_thresh)
643 ixgbe_xmit_cleanup(txq);
645 rte_prefetch0(&txe->mbuf->pool);
648 for (nb_tx = 0; nb_tx < nb_pkts; nb_tx++) {
651 pkt_len = tx_pkt->pkt_len;
654 * Determine how many (if any) context descriptors
655 * are needed for offload functionality.
657 ol_flags = tx_pkt->ol_flags;
659 /* If hardware offload required */
660 tx_ol_req = ol_flags & IXGBE_TX_OFFLOAD_MASK;
662 tx_offload.l2_len = tx_pkt->l2_len;
663 tx_offload.l3_len = tx_pkt->l3_len;
664 tx_offload.l4_len = tx_pkt->l4_len;
665 tx_offload.vlan_tci = tx_pkt->vlan_tci;
666 tx_offload.tso_segsz = tx_pkt->tso_segsz;
667 tx_offload.outer_l2_len = tx_pkt->outer_l2_len;
668 tx_offload.outer_l3_len = tx_pkt->outer_l3_len;
670 /* If new context need be built or reuse the exist ctx. */
671 ctx = what_advctx_update(txq, tx_ol_req,
673 /* Only allocate context descriptor if required*/
674 new_ctx = (ctx == IXGBE_CTX_NUM);
679 * Keep track of how many descriptors are used this loop
680 * This will always be the number of segments + the number of
681 * Context descriptors required to transmit the packet
683 nb_used = (uint16_t)(tx_pkt->nb_segs + new_ctx);
686 nb_used + txq->nb_tx_used >= txq->tx_rs_thresh)
687 /* set RS on the previous packet in the burst */
688 txp->read.cmd_type_len |=
689 rte_cpu_to_le_32(IXGBE_TXD_CMD_RS);
692 * The number of descriptors that must be allocated for a
693 * packet is the number of segments of that packet, plus 1
694 * Context Descriptor for the hardware offload, if any.
695 * Determine the last TX descriptor to allocate in the TX ring
696 * for the packet, starting from the current position (tx_id)
699 tx_last = (uint16_t) (tx_id + nb_used - 1);
702 if (tx_last >= txq->nb_tx_desc)
703 tx_last = (uint16_t) (tx_last - txq->nb_tx_desc);
705 PMD_TX_LOG(DEBUG, "port_id=%u queue_id=%u pktlen=%u"
706 " tx_first=%u tx_last=%u",
707 (unsigned) txq->port_id,
708 (unsigned) txq->queue_id,
714 * Make sure there are enough TX descriptors available to
715 * transmit the entire packet.
716 * nb_used better be less than or equal to txq->tx_rs_thresh
718 if (nb_used > txq->nb_tx_free) {
719 PMD_TX_FREE_LOG(DEBUG,
720 "Not enough free TX descriptors "
721 "nb_used=%4u nb_free=%4u "
722 "(port=%d queue=%d)",
723 nb_used, txq->nb_tx_free,
724 txq->port_id, txq->queue_id);
726 if (ixgbe_xmit_cleanup(txq) != 0) {
727 /* Could not clean any descriptors */
733 /* nb_used better be <= txq->tx_rs_thresh */
734 if (unlikely(nb_used > txq->tx_rs_thresh)) {
735 PMD_TX_FREE_LOG(DEBUG,
736 "The number of descriptors needed to "
737 "transmit the packet exceeds the "
738 "RS bit threshold. This will impact "
740 "nb_used=%4u nb_free=%4u "
742 "(port=%d queue=%d)",
743 nb_used, txq->nb_tx_free,
745 txq->port_id, txq->queue_id);
747 * Loop here until there are enough TX
748 * descriptors or until the ring cannot be
751 while (nb_used > txq->nb_tx_free) {
752 if (ixgbe_xmit_cleanup(txq) != 0) {
754 * Could not clean any
766 * By now there are enough free TX descriptors to transmit
771 * Set common flags of all TX Data Descriptors.
773 * The following bits must be set in all Data Descriptors:
774 * - IXGBE_ADVTXD_DTYP_DATA
775 * - IXGBE_ADVTXD_DCMD_DEXT
777 * The following bits must be set in the first Data Descriptor
778 * and are ignored in the other ones:
779 * - IXGBE_ADVTXD_DCMD_IFCS
780 * - IXGBE_ADVTXD_MAC_1588
781 * - IXGBE_ADVTXD_DCMD_VLE
783 * The following bits must only be set in the last Data
785 * - IXGBE_TXD_CMD_EOP
787 * The following bits can be set in any Data Descriptor, but
788 * are only set in the last Data Descriptor:
791 cmd_type_len = IXGBE_ADVTXD_DTYP_DATA |
792 IXGBE_ADVTXD_DCMD_IFCS | IXGBE_ADVTXD_DCMD_DEXT;
794 #ifdef RTE_LIBRTE_IEEE1588
795 if (ol_flags & PKT_TX_IEEE1588_TMST)
796 cmd_type_len |= IXGBE_ADVTXD_MAC_1588;
802 if (ol_flags & PKT_TX_TCP_SEG) {
803 /* when TSO is on, paylen in descriptor is the
804 * not the packet len but the tcp payload len */
805 pkt_len -= (tx_offload.l2_len +
806 tx_offload.l3_len + tx_offload.l4_len);
810 * Setup the TX Advanced Context Descriptor if required
813 volatile struct ixgbe_adv_tx_context_desc *
816 ctx_txd = (volatile struct
817 ixgbe_adv_tx_context_desc *)
820 txn = &sw_ring[txe->next_id];
821 rte_prefetch0(&txn->mbuf->pool);
823 if (txe->mbuf != NULL) {
824 rte_pktmbuf_free_seg(txe->mbuf);
828 ixgbe_set_xmit_ctx(txq, ctx_txd, tx_ol_req,
831 txe->last_id = tx_last;
832 tx_id = txe->next_id;
837 * Setup the TX Advanced Data Descriptor,
838 * This path will go through
839 * whatever new/reuse the context descriptor
841 cmd_type_len |= tx_desc_ol_flags_to_cmdtype(ol_flags);
842 olinfo_status |= tx_desc_cksum_flags_to_olinfo(ol_flags);
843 olinfo_status |= ctx << IXGBE_ADVTXD_IDX_SHIFT;
846 olinfo_status |= (pkt_len << IXGBE_ADVTXD_PAYLEN_SHIFT);
851 txn = &sw_ring[txe->next_id];
852 rte_prefetch0(&txn->mbuf->pool);
854 if (txe->mbuf != NULL)
855 rte_pktmbuf_free_seg(txe->mbuf);
859 * Set up Transmit Data Descriptor.
861 slen = m_seg->data_len;
862 buf_dma_addr = rte_mbuf_data_dma_addr(m_seg);
863 txd->read.buffer_addr =
864 rte_cpu_to_le_64(buf_dma_addr);
865 txd->read.cmd_type_len =
866 rte_cpu_to_le_32(cmd_type_len | slen);
867 txd->read.olinfo_status =
868 rte_cpu_to_le_32(olinfo_status);
869 txe->last_id = tx_last;
870 tx_id = txe->next_id;
873 } while (m_seg != NULL);
876 * The last packet data descriptor needs End Of Packet (EOP)
878 cmd_type_len |= IXGBE_TXD_CMD_EOP;
879 txq->nb_tx_used = (uint16_t)(txq->nb_tx_used + nb_used);
880 txq->nb_tx_free = (uint16_t)(txq->nb_tx_free - nb_used);
882 /* Set RS bit only on threshold packets' last descriptor */
883 if (txq->nb_tx_used >= txq->tx_rs_thresh) {
884 PMD_TX_FREE_LOG(DEBUG,
885 "Setting RS bit on TXD id="
886 "%4u (port=%d queue=%d)",
887 tx_last, txq->port_id, txq->queue_id);
889 cmd_type_len |= IXGBE_TXD_CMD_RS;
891 /* Update txq RS bit counters */
897 txd->read.cmd_type_len |= rte_cpu_to_le_32(cmd_type_len);
901 /* set RS on last packet in the burst */
903 txp->read.cmd_type_len |= rte_cpu_to_le_32(IXGBE_TXD_CMD_RS);
908 * Set the Transmit Descriptor Tail (TDT)
910 PMD_TX_LOG(DEBUG, "port_id=%u queue_id=%u tx_tail=%u nb_tx=%u",
911 (unsigned) txq->port_id, (unsigned) txq->queue_id,
912 (unsigned) tx_id, (unsigned) nb_tx);
913 IXGBE_PCI_REG_WRITE_RELAXED(txq->tdt_reg_addr, tx_id);
914 txq->tx_tail = tx_id;
919 /*********************************************************************
923 **********************************************************************/
925 ixgbe_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
930 struct ixgbe_tx_queue *txq = (struct ixgbe_tx_queue *)tx_queue;
932 for (i = 0; i < nb_pkts; i++) {
934 ol_flags = m->ol_flags;
937 * Check if packet meets requirements for number of segments
939 * NOTE: for ixgbe it's always (40 - WTHRESH) for both TSO and
943 if (m->nb_segs > IXGBE_TX_MAX_SEG - txq->wthresh) {
948 if (ol_flags & IXGBE_TX_OFFLOAD_NOTSUP_MASK) {
949 rte_errno = -ENOTSUP;
953 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
954 ret = rte_validate_tx_offload(m);
960 ret = rte_net_intel_cksum_prepare(m);
970 /*********************************************************************
974 **********************************************************************/
976 #define IXGBE_PACKET_TYPE_ETHER 0X00
977 #define IXGBE_PACKET_TYPE_IPV4 0X01
978 #define IXGBE_PACKET_TYPE_IPV4_TCP 0X11
979 #define IXGBE_PACKET_TYPE_IPV4_UDP 0X21
980 #define IXGBE_PACKET_TYPE_IPV4_SCTP 0X41
981 #define IXGBE_PACKET_TYPE_IPV4_EXT 0X03
982 #define IXGBE_PACKET_TYPE_IPV4_EXT_TCP 0X13
983 #define IXGBE_PACKET_TYPE_IPV4_EXT_UDP 0X23
984 #define IXGBE_PACKET_TYPE_IPV4_EXT_SCTP 0X43
985 #define IXGBE_PACKET_TYPE_IPV6 0X04
986 #define IXGBE_PACKET_TYPE_IPV6_TCP 0X14
987 #define IXGBE_PACKET_TYPE_IPV6_UDP 0X24
988 #define IXGBE_PACKET_TYPE_IPV6_SCTP 0X44
989 #define IXGBE_PACKET_TYPE_IPV6_EXT 0X0C
990 #define IXGBE_PACKET_TYPE_IPV6_EXT_TCP 0X1C
991 #define IXGBE_PACKET_TYPE_IPV6_EXT_UDP 0X2C
992 #define IXGBE_PACKET_TYPE_IPV6_EXT_SCTP 0X4C
993 #define IXGBE_PACKET_TYPE_IPV4_IPV6 0X05
994 #define IXGBE_PACKET_TYPE_IPV4_IPV6_TCP 0X15
995 #define IXGBE_PACKET_TYPE_IPV4_IPV6_UDP 0X25
996 #define IXGBE_PACKET_TYPE_IPV4_IPV6_SCTP 0X45
997 #define IXGBE_PACKET_TYPE_IPV4_EXT_IPV6 0X07
998 #define IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_TCP 0X17
999 #define IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_UDP 0X27
1000 #define IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_SCTP 0X47
1001 #define IXGBE_PACKET_TYPE_IPV4_IPV6_EXT 0X0D
1002 #define IXGBE_PACKET_TYPE_IPV4_IPV6_EXT_TCP 0X1D
1003 #define IXGBE_PACKET_TYPE_IPV4_IPV6_EXT_UDP 0X2D
1004 #define IXGBE_PACKET_TYPE_IPV4_IPV6_EXT_SCTP 0X4D
1005 #define IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_EXT 0X0F
1006 #define IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_EXT_TCP 0X1F
1007 #define IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_EXT_UDP 0X2F
1008 #define IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_EXT_SCTP 0X4F
1010 #define IXGBE_PACKET_TYPE_NVGRE 0X00
1011 #define IXGBE_PACKET_TYPE_NVGRE_IPV4 0X01
1012 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_TCP 0X11
1013 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_UDP 0X21
1014 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_SCTP 0X41
1015 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_EXT 0X03
1016 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_EXT_TCP 0X13
1017 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_EXT_UDP 0X23
1018 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_EXT_SCTP 0X43
1019 #define IXGBE_PACKET_TYPE_NVGRE_IPV6 0X04
1020 #define IXGBE_PACKET_TYPE_NVGRE_IPV6_TCP 0X14
1021 #define IXGBE_PACKET_TYPE_NVGRE_IPV6_UDP 0X24
1022 #define IXGBE_PACKET_TYPE_NVGRE_IPV6_SCTP 0X44
1023 #define IXGBE_PACKET_TYPE_NVGRE_IPV6_EXT 0X0C
1024 #define IXGBE_PACKET_TYPE_NVGRE_IPV6_EXT_TCP 0X1C
1025 #define IXGBE_PACKET_TYPE_NVGRE_IPV6_EXT_UDP 0X2C
1026 #define IXGBE_PACKET_TYPE_NVGRE_IPV6_EXT_SCTP 0X4C
1027 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6 0X05
1028 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6_TCP 0X15
1029 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6_UDP 0X25
1030 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6_EXT 0X0D
1031 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6_EXT_TCP 0X1D
1032 #define IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6_EXT_UDP 0X2D
1034 #define IXGBE_PACKET_TYPE_VXLAN 0X80
1035 #define IXGBE_PACKET_TYPE_VXLAN_IPV4 0X81
1036 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_TCP 0x91
1037 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_UDP 0xA1
1038 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_SCTP 0xC1
1039 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_EXT 0x83
1040 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_EXT_TCP 0X93
1041 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_EXT_UDP 0XA3
1042 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_EXT_SCTP 0XC3
1043 #define IXGBE_PACKET_TYPE_VXLAN_IPV6 0X84
1044 #define IXGBE_PACKET_TYPE_VXLAN_IPV6_TCP 0X94
1045 #define IXGBE_PACKET_TYPE_VXLAN_IPV6_UDP 0XA4
1046 #define IXGBE_PACKET_TYPE_VXLAN_IPV6_SCTP 0XC4
1047 #define IXGBE_PACKET_TYPE_VXLAN_IPV6_EXT 0X8C
1048 #define IXGBE_PACKET_TYPE_VXLAN_IPV6_EXT_TCP 0X9C
1049 #define IXGBE_PACKET_TYPE_VXLAN_IPV6_EXT_UDP 0XAC
1050 #define IXGBE_PACKET_TYPE_VXLAN_IPV6_EXT_SCTP 0XCC
1051 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6 0X85
1052 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6_TCP 0X95
1053 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6_UDP 0XA5
1054 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6_EXT 0X8D
1055 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6_EXT_TCP 0X9D
1056 #define IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6_EXT_UDP 0XAD
1058 #define IXGBE_PACKET_TYPE_MAX 0X80
1059 #define IXGBE_PACKET_TYPE_TN_MAX 0X100
1060 #define IXGBE_PACKET_TYPE_SHIFT 0X04
1062 /* @note: fix ixgbe_dev_supported_ptypes_get() if any change here. */
1063 static inline uint32_t
1064 ixgbe_rxd_pkt_info_to_pkt_type(uint32_t pkt_info, uint16_t ptype_mask)
1067 * Use 2 different table for normal packet and tunnel packet
1068 * to save the space.
1070 static const uint32_t
1071 ptype_table[IXGBE_PACKET_TYPE_MAX] __rte_cache_aligned = {
1072 [IXGBE_PACKET_TYPE_ETHER] = RTE_PTYPE_L2_ETHER,
1073 [IXGBE_PACKET_TYPE_IPV4] = RTE_PTYPE_L2_ETHER |
1075 [IXGBE_PACKET_TYPE_IPV4_TCP] = RTE_PTYPE_L2_ETHER |
1076 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_TCP,
1077 [IXGBE_PACKET_TYPE_IPV4_UDP] = RTE_PTYPE_L2_ETHER |
1078 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_UDP,
1079 [IXGBE_PACKET_TYPE_IPV4_SCTP] = RTE_PTYPE_L2_ETHER |
1080 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_L4_SCTP,
1081 [IXGBE_PACKET_TYPE_IPV4_EXT] = RTE_PTYPE_L2_ETHER |
1082 RTE_PTYPE_L3_IPV4_EXT,
1083 [IXGBE_PACKET_TYPE_IPV4_EXT_TCP] = RTE_PTYPE_L2_ETHER |
1084 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_TCP,
1085 [IXGBE_PACKET_TYPE_IPV4_EXT_UDP] = RTE_PTYPE_L2_ETHER |
1086 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_UDP,
1087 [IXGBE_PACKET_TYPE_IPV4_EXT_SCTP] = RTE_PTYPE_L2_ETHER |
1088 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_L4_SCTP,
1089 [IXGBE_PACKET_TYPE_IPV6] = RTE_PTYPE_L2_ETHER |
1091 [IXGBE_PACKET_TYPE_IPV6_TCP] = RTE_PTYPE_L2_ETHER |
1092 RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_TCP,
1093 [IXGBE_PACKET_TYPE_IPV6_UDP] = RTE_PTYPE_L2_ETHER |
1094 RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_UDP,
1095 [IXGBE_PACKET_TYPE_IPV6_SCTP] = RTE_PTYPE_L2_ETHER |
1096 RTE_PTYPE_L3_IPV6 | RTE_PTYPE_L4_SCTP,
1097 [IXGBE_PACKET_TYPE_IPV6_EXT] = RTE_PTYPE_L2_ETHER |
1098 RTE_PTYPE_L3_IPV6_EXT,
1099 [IXGBE_PACKET_TYPE_IPV6_EXT_TCP] = RTE_PTYPE_L2_ETHER |
1100 RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_TCP,
1101 [IXGBE_PACKET_TYPE_IPV6_EXT_UDP] = RTE_PTYPE_L2_ETHER |
1102 RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_UDP,
1103 [IXGBE_PACKET_TYPE_IPV6_EXT_SCTP] = RTE_PTYPE_L2_ETHER |
1104 RTE_PTYPE_L3_IPV6_EXT | RTE_PTYPE_L4_SCTP,
1105 [IXGBE_PACKET_TYPE_IPV4_IPV6] = RTE_PTYPE_L2_ETHER |
1106 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_TUNNEL_IP |
1107 RTE_PTYPE_INNER_L3_IPV6,
1108 [IXGBE_PACKET_TYPE_IPV4_IPV6_TCP] = RTE_PTYPE_L2_ETHER |
1109 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_TUNNEL_IP |
1110 RTE_PTYPE_INNER_L3_IPV6 | RTE_PTYPE_INNER_L4_TCP,
1111 [IXGBE_PACKET_TYPE_IPV4_IPV6_UDP] = RTE_PTYPE_L2_ETHER |
1112 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_TUNNEL_IP |
1113 RTE_PTYPE_INNER_L3_IPV6 | RTE_PTYPE_INNER_L4_UDP,
1114 [IXGBE_PACKET_TYPE_IPV4_IPV6_SCTP] = RTE_PTYPE_L2_ETHER |
1115 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_TUNNEL_IP |
1116 RTE_PTYPE_INNER_L3_IPV6 | RTE_PTYPE_INNER_L4_SCTP,
1117 [IXGBE_PACKET_TYPE_IPV4_EXT_IPV6] = RTE_PTYPE_L2_ETHER |
1118 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_TUNNEL_IP |
1119 RTE_PTYPE_INNER_L3_IPV6,
1120 [IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_TCP] = RTE_PTYPE_L2_ETHER |
1121 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_TUNNEL_IP |
1122 RTE_PTYPE_INNER_L3_IPV6 | RTE_PTYPE_INNER_L4_TCP,
1123 [IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_UDP] = RTE_PTYPE_L2_ETHER |
1124 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_TUNNEL_IP |
1125 RTE_PTYPE_INNER_L3_IPV6 | RTE_PTYPE_INNER_L4_UDP,
1126 [IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_SCTP] = RTE_PTYPE_L2_ETHER |
1127 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_TUNNEL_IP |
1128 RTE_PTYPE_INNER_L3_IPV6 | RTE_PTYPE_INNER_L4_SCTP,
1129 [IXGBE_PACKET_TYPE_IPV4_IPV6_EXT] = RTE_PTYPE_L2_ETHER |
1130 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_TUNNEL_IP |
1131 RTE_PTYPE_INNER_L3_IPV6_EXT,
1132 [IXGBE_PACKET_TYPE_IPV4_IPV6_EXT_TCP] = RTE_PTYPE_L2_ETHER |
1133 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_TUNNEL_IP |
1134 RTE_PTYPE_INNER_L3_IPV6_EXT | RTE_PTYPE_INNER_L4_TCP,
1135 [IXGBE_PACKET_TYPE_IPV4_IPV6_EXT_UDP] = RTE_PTYPE_L2_ETHER |
1136 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_TUNNEL_IP |
1137 RTE_PTYPE_INNER_L3_IPV6_EXT | RTE_PTYPE_INNER_L4_UDP,
1138 [IXGBE_PACKET_TYPE_IPV4_IPV6_EXT_SCTP] = RTE_PTYPE_L2_ETHER |
1139 RTE_PTYPE_L3_IPV4 | RTE_PTYPE_TUNNEL_IP |
1140 RTE_PTYPE_INNER_L3_IPV6_EXT | RTE_PTYPE_INNER_L4_SCTP,
1141 [IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_EXT] = RTE_PTYPE_L2_ETHER |
1142 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_TUNNEL_IP |
1143 RTE_PTYPE_INNER_L3_IPV6_EXT,
1144 [IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_EXT_TCP] = RTE_PTYPE_L2_ETHER |
1145 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_TUNNEL_IP |
1146 RTE_PTYPE_INNER_L3_IPV6_EXT | RTE_PTYPE_INNER_L4_TCP,
1147 [IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_EXT_UDP] = RTE_PTYPE_L2_ETHER |
1148 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_TUNNEL_IP |
1149 RTE_PTYPE_INNER_L3_IPV6_EXT | RTE_PTYPE_INNER_L4_UDP,
1150 [IXGBE_PACKET_TYPE_IPV4_EXT_IPV6_EXT_SCTP] =
1151 RTE_PTYPE_L2_ETHER |
1152 RTE_PTYPE_L3_IPV4_EXT | RTE_PTYPE_TUNNEL_IP |
1153 RTE_PTYPE_INNER_L3_IPV6_EXT | RTE_PTYPE_INNER_L4_SCTP,
1156 static const uint32_t
1157 ptype_table_tn[IXGBE_PACKET_TYPE_TN_MAX] __rte_cache_aligned = {
1158 [IXGBE_PACKET_TYPE_NVGRE] = RTE_PTYPE_L2_ETHER |
1159 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1160 RTE_PTYPE_INNER_L2_ETHER,
1161 [IXGBE_PACKET_TYPE_NVGRE_IPV4] = RTE_PTYPE_L2_ETHER |
1162 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1163 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4,
1164 [IXGBE_PACKET_TYPE_NVGRE_IPV4_EXT] = RTE_PTYPE_L2_ETHER |
1165 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1166 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4_EXT,
1167 [IXGBE_PACKET_TYPE_NVGRE_IPV6] = RTE_PTYPE_L2_ETHER |
1168 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1169 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV6,
1170 [IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6] = RTE_PTYPE_L2_ETHER |
1171 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1172 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4,
1173 [IXGBE_PACKET_TYPE_NVGRE_IPV6_EXT] = RTE_PTYPE_L2_ETHER |
1174 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1175 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV6_EXT,
1176 [IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6_EXT] = RTE_PTYPE_L2_ETHER |
1177 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1178 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4,
1179 [IXGBE_PACKET_TYPE_NVGRE_IPV4_TCP] = RTE_PTYPE_L2_ETHER |
1180 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1181 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4 |
1182 RTE_PTYPE_INNER_L4_TCP,
1183 [IXGBE_PACKET_TYPE_NVGRE_IPV6_TCP] = RTE_PTYPE_L2_ETHER |
1184 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1185 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV6 |
1186 RTE_PTYPE_INNER_L4_TCP,
1187 [IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6_TCP] = RTE_PTYPE_L2_ETHER |
1188 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1189 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4,
1190 [IXGBE_PACKET_TYPE_NVGRE_IPV6_EXT_TCP] = RTE_PTYPE_L2_ETHER |
1191 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1192 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV6_EXT |
1193 RTE_PTYPE_INNER_L4_TCP,
1194 [IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6_EXT_TCP] =
1195 RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
1196 RTE_PTYPE_TUNNEL_GRE | RTE_PTYPE_INNER_L2_ETHER |
1197 RTE_PTYPE_INNER_L3_IPV4,
1198 [IXGBE_PACKET_TYPE_NVGRE_IPV4_UDP] = RTE_PTYPE_L2_ETHER |
1199 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1200 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4 |
1201 RTE_PTYPE_INNER_L4_UDP,
1202 [IXGBE_PACKET_TYPE_NVGRE_IPV6_UDP] = RTE_PTYPE_L2_ETHER |
1203 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1204 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV6 |
1205 RTE_PTYPE_INNER_L4_UDP,
1206 [IXGBE_PACKET_TYPE_NVGRE_IPV6_SCTP] = RTE_PTYPE_L2_ETHER |
1207 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1208 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV6 |
1209 RTE_PTYPE_INNER_L4_SCTP,
1210 [IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6_UDP] = RTE_PTYPE_L2_ETHER |
1211 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1212 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4,
1213 [IXGBE_PACKET_TYPE_NVGRE_IPV6_EXT_UDP] = RTE_PTYPE_L2_ETHER |
1214 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1215 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV6_EXT |
1216 RTE_PTYPE_INNER_L4_UDP,
1217 [IXGBE_PACKET_TYPE_NVGRE_IPV6_EXT_SCTP] = RTE_PTYPE_L2_ETHER |
1218 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1219 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV6_EXT |
1220 RTE_PTYPE_INNER_L4_SCTP,
1221 [IXGBE_PACKET_TYPE_NVGRE_IPV4_IPV6_EXT_UDP] =
1222 RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
1223 RTE_PTYPE_TUNNEL_GRE | RTE_PTYPE_INNER_L2_ETHER |
1224 RTE_PTYPE_INNER_L3_IPV4,
1225 [IXGBE_PACKET_TYPE_NVGRE_IPV4_SCTP] = RTE_PTYPE_L2_ETHER |
1226 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1227 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4 |
1228 RTE_PTYPE_INNER_L4_SCTP,
1229 [IXGBE_PACKET_TYPE_NVGRE_IPV4_EXT_SCTP] = RTE_PTYPE_L2_ETHER |
1230 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1231 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4_EXT |
1232 RTE_PTYPE_INNER_L4_SCTP,
1233 [IXGBE_PACKET_TYPE_NVGRE_IPV4_EXT_TCP] = RTE_PTYPE_L2_ETHER |
1234 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1235 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4_EXT |
1236 RTE_PTYPE_INNER_L4_TCP,
1237 [IXGBE_PACKET_TYPE_NVGRE_IPV4_EXT_UDP] = RTE_PTYPE_L2_ETHER |
1238 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_TUNNEL_GRE |
1239 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4_EXT |
1240 RTE_PTYPE_INNER_L4_UDP,
1242 [IXGBE_PACKET_TYPE_VXLAN] = RTE_PTYPE_L2_ETHER |
1243 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1244 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER,
1245 [IXGBE_PACKET_TYPE_VXLAN_IPV4] = RTE_PTYPE_L2_ETHER |
1246 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1247 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1248 RTE_PTYPE_INNER_L3_IPV4,
1249 [IXGBE_PACKET_TYPE_VXLAN_IPV4_EXT] = RTE_PTYPE_L2_ETHER |
1250 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1251 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1252 RTE_PTYPE_INNER_L3_IPV4_EXT,
1253 [IXGBE_PACKET_TYPE_VXLAN_IPV6] = RTE_PTYPE_L2_ETHER |
1254 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1255 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1256 RTE_PTYPE_INNER_L3_IPV6,
1257 [IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6] = RTE_PTYPE_L2_ETHER |
1258 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1259 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1260 RTE_PTYPE_INNER_L3_IPV4,
1261 [IXGBE_PACKET_TYPE_VXLAN_IPV6_EXT] = RTE_PTYPE_L2_ETHER |
1262 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1263 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1264 RTE_PTYPE_INNER_L3_IPV6_EXT,
1265 [IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6_EXT] = RTE_PTYPE_L2_ETHER |
1266 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1267 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1268 RTE_PTYPE_INNER_L3_IPV4,
1269 [IXGBE_PACKET_TYPE_VXLAN_IPV4_TCP] = RTE_PTYPE_L2_ETHER |
1270 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1271 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1272 RTE_PTYPE_INNER_L3_IPV4 | RTE_PTYPE_INNER_L4_TCP,
1273 [IXGBE_PACKET_TYPE_VXLAN_IPV6_TCP] = RTE_PTYPE_L2_ETHER |
1274 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1275 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1276 RTE_PTYPE_INNER_L3_IPV6 | RTE_PTYPE_INNER_L4_TCP,
1277 [IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6_TCP] = RTE_PTYPE_L2_ETHER |
1278 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1279 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1280 RTE_PTYPE_INNER_L3_IPV4,
1281 [IXGBE_PACKET_TYPE_VXLAN_IPV6_EXT_TCP] = RTE_PTYPE_L2_ETHER |
1282 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1283 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1284 RTE_PTYPE_INNER_L3_IPV6_EXT | RTE_PTYPE_INNER_L4_TCP,
1285 [IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6_EXT_TCP] =
1286 RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
1287 RTE_PTYPE_L4_UDP | RTE_PTYPE_TUNNEL_VXLAN |
1288 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4,
1289 [IXGBE_PACKET_TYPE_VXLAN_IPV4_UDP] = RTE_PTYPE_L2_ETHER |
1290 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1291 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1292 RTE_PTYPE_INNER_L3_IPV4 | RTE_PTYPE_INNER_L4_UDP,
1293 [IXGBE_PACKET_TYPE_VXLAN_IPV6_UDP] = RTE_PTYPE_L2_ETHER |
1294 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1295 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1296 RTE_PTYPE_INNER_L3_IPV6 | RTE_PTYPE_INNER_L4_UDP,
1297 [IXGBE_PACKET_TYPE_VXLAN_IPV6_SCTP] = RTE_PTYPE_L2_ETHER |
1298 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1299 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1300 RTE_PTYPE_INNER_L3_IPV6 | RTE_PTYPE_INNER_L4_SCTP,
1301 [IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6_UDP] = RTE_PTYPE_L2_ETHER |
1302 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1303 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1304 RTE_PTYPE_INNER_L3_IPV4,
1305 [IXGBE_PACKET_TYPE_VXLAN_IPV6_EXT_UDP] = RTE_PTYPE_L2_ETHER |
1306 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1307 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1308 RTE_PTYPE_INNER_L3_IPV6_EXT | RTE_PTYPE_INNER_L4_UDP,
1309 [IXGBE_PACKET_TYPE_VXLAN_IPV6_EXT_SCTP] = RTE_PTYPE_L2_ETHER |
1310 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1311 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1312 RTE_PTYPE_INNER_L3_IPV6_EXT | RTE_PTYPE_INNER_L4_SCTP,
1313 [IXGBE_PACKET_TYPE_VXLAN_IPV4_IPV6_EXT_UDP] =
1314 RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4_EXT_UNKNOWN |
1315 RTE_PTYPE_L4_UDP | RTE_PTYPE_TUNNEL_VXLAN |
1316 RTE_PTYPE_INNER_L2_ETHER | RTE_PTYPE_INNER_L3_IPV4,
1317 [IXGBE_PACKET_TYPE_VXLAN_IPV4_SCTP] = RTE_PTYPE_L2_ETHER |
1318 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1319 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1320 RTE_PTYPE_INNER_L3_IPV4 | RTE_PTYPE_INNER_L4_SCTP,
1321 [IXGBE_PACKET_TYPE_VXLAN_IPV4_EXT_SCTP] = RTE_PTYPE_L2_ETHER |
1322 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1323 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1324 RTE_PTYPE_INNER_L3_IPV4_EXT | RTE_PTYPE_INNER_L4_SCTP,
1325 [IXGBE_PACKET_TYPE_VXLAN_IPV4_EXT_TCP] = RTE_PTYPE_L2_ETHER |
1326 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1327 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1328 RTE_PTYPE_INNER_L3_IPV4_EXT | RTE_PTYPE_INNER_L4_TCP,
1329 [IXGBE_PACKET_TYPE_VXLAN_IPV4_EXT_UDP] = RTE_PTYPE_L2_ETHER |
1330 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN | RTE_PTYPE_L4_UDP |
1331 RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_INNER_L2_ETHER |
1332 RTE_PTYPE_INNER_L3_IPV4_EXT | RTE_PTYPE_INNER_L4_UDP,
1335 if (unlikely(pkt_info & IXGBE_RXDADV_PKTTYPE_ETQF))
1336 return RTE_PTYPE_UNKNOWN;
1338 pkt_info = (pkt_info >> IXGBE_PACKET_TYPE_SHIFT) & ptype_mask;
1340 /* For tunnel packet */
1341 if (pkt_info & IXGBE_PACKET_TYPE_TUNNEL_BIT) {
1342 /* Remove the tunnel bit to save the space. */
1343 pkt_info &= IXGBE_PACKET_TYPE_MASK_TUNNEL;
1344 return ptype_table_tn[pkt_info];
1348 * For x550, if it's not tunnel,
1349 * tunnel type bit should be set to 0.
1350 * Reuse 82599's mask.
1352 pkt_info &= IXGBE_PACKET_TYPE_MASK_82599;
1354 return ptype_table[pkt_info];
1357 static inline uint64_t
1358 ixgbe_rxd_pkt_info_to_pkt_flags(uint16_t pkt_info)
1360 static uint64_t ip_rss_types_map[16] __rte_cache_aligned = {
1361 0, PKT_RX_RSS_HASH, PKT_RX_RSS_HASH, PKT_RX_RSS_HASH,
1362 0, PKT_RX_RSS_HASH, 0, PKT_RX_RSS_HASH,
1363 PKT_RX_RSS_HASH, 0, 0, 0,
1364 0, 0, 0, PKT_RX_FDIR,
1366 #ifdef RTE_LIBRTE_IEEE1588
1367 static uint64_t ip_pkt_etqf_map[8] = {
1368 0, 0, 0, PKT_RX_IEEE1588_PTP,
1372 if (likely(pkt_info & IXGBE_RXDADV_PKTTYPE_ETQF))
1373 return ip_pkt_etqf_map[(pkt_info >> 4) & 0X07] |
1374 ip_rss_types_map[pkt_info & 0XF];
1376 return ip_rss_types_map[pkt_info & 0XF];
1378 return ip_rss_types_map[pkt_info & 0XF];
1382 static inline uint64_t
1383 rx_desc_status_to_pkt_flags(uint32_t rx_status, uint64_t vlan_flags)
1388 * Check if VLAN present only.
1389 * Do not check whether L3/L4 rx checksum done by NIC or not,
1390 * That can be found from rte_eth_rxmode.hw_ip_checksum flag
1392 pkt_flags = (rx_status & IXGBE_RXD_STAT_VP) ? vlan_flags : 0;
1394 #ifdef RTE_LIBRTE_IEEE1588
1395 if (rx_status & IXGBE_RXD_STAT_TMST)
1396 pkt_flags = pkt_flags | PKT_RX_IEEE1588_TMST;
1401 static inline uint64_t
1402 rx_desc_error_to_pkt_flags(uint32_t rx_status)
1407 * Bit 31: IPE, IPv4 checksum error
1408 * Bit 30: L4I, L4I integrity error
1410 static uint64_t error_to_pkt_flags_map[4] = {
1411 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD,
1412 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_BAD,
1413 PKT_RX_IP_CKSUM_BAD | PKT_RX_L4_CKSUM_GOOD,
1414 PKT_RX_IP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD
1416 pkt_flags = error_to_pkt_flags_map[(rx_status >>
1417 IXGBE_RXDADV_ERR_CKSUM_BIT) & IXGBE_RXDADV_ERR_CKSUM_MSK];
1419 if ((rx_status & IXGBE_RXD_STAT_OUTERIPCS) &&
1420 (rx_status & IXGBE_RXDADV_ERR_OUTERIPER)) {
1421 pkt_flags |= PKT_RX_EIP_CKSUM_BAD;
1428 * LOOK_AHEAD defines how many desc statuses to check beyond the
1429 * current descriptor.
1430 * It must be a pound define for optimal performance.
1431 * Do not change the value of LOOK_AHEAD, as the ixgbe_rx_scan_hw_ring
1432 * function only works with LOOK_AHEAD=8.
1434 #define LOOK_AHEAD 8
1435 #if (LOOK_AHEAD != 8)
1436 #error "PMD IXGBE: LOOK_AHEAD must be 8\n"
1439 ixgbe_rx_scan_hw_ring(struct ixgbe_rx_queue *rxq)
1441 volatile union ixgbe_adv_rx_desc *rxdp;
1442 struct ixgbe_rx_entry *rxep;
1443 struct rte_mbuf *mb;
1447 uint32_t s[LOOK_AHEAD];
1448 uint32_t pkt_info[LOOK_AHEAD];
1449 int i, j, nb_rx = 0;
1451 uint64_t vlan_flags = rxq->vlan_flags;
1453 /* get references to current descriptor and S/W ring entry */
1454 rxdp = &rxq->rx_ring[rxq->rx_tail];
1455 rxep = &rxq->sw_ring[rxq->rx_tail];
1457 status = rxdp->wb.upper.status_error;
1458 /* check to make sure there is at least 1 packet to receive */
1459 if (!(status & rte_cpu_to_le_32(IXGBE_RXDADV_STAT_DD)))
1463 * Scan LOOK_AHEAD descriptors at a time to determine which descriptors
1464 * reference packets that are ready to be received.
1466 for (i = 0; i < RTE_PMD_IXGBE_RX_MAX_BURST;
1467 i += LOOK_AHEAD, rxdp += LOOK_AHEAD, rxep += LOOK_AHEAD) {
1468 /* Read desc statuses backwards to avoid race condition */
1469 for (j = 0; j < LOOK_AHEAD; j++)
1470 s[j] = rte_le_to_cpu_32(rxdp[j].wb.upper.status_error);
1474 /* Compute how many status bits were set */
1475 for (nb_dd = 0; nb_dd < LOOK_AHEAD &&
1476 (s[nb_dd] & IXGBE_RXDADV_STAT_DD); nb_dd++)
1479 for (j = 0; j < nb_dd; j++)
1480 pkt_info[j] = rte_le_to_cpu_32(rxdp[j].wb.lower.
1485 /* Translate descriptor info to mbuf format */
1486 for (j = 0; j < nb_dd; ++j) {
1488 pkt_len = rte_le_to_cpu_16(rxdp[j].wb.upper.length) -
1490 mb->data_len = pkt_len;
1491 mb->pkt_len = pkt_len;
1492 mb->vlan_tci = rte_le_to_cpu_16(rxdp[j].wb.upper.vlan);
1494 /* convert descriptor fields to rte mbuf flags */
1495 pkt_flags = rx_desc_status_to_pkt_flags(s[j],
1497 pkt_flags |= rx_desc_error_to_pkt_flags(s[j]);
1498 pkt_flags |= ixgbe_rxd_pkt_info_to_pkt_flags
1499 ((uint16_t)pkt_info[j]);
1500 mb->ol_flags = pkt_flags;
1502 ixgbe_rxd_pkt_info_to_pkt_type
1503 (pkt_info[j], rxq->pkt_type_mask);
1505 if (likely(pkt_flags & PKT_RX_RSS_HASH))
1506 mb->hash.rss = rte_le_to_cpu_32(
1507 rxdp[j].wb.lower.hi_dword.rss);
1508 else if (pkt_flags & PKT_RX_FDIR) {
1509 mb->hash.fdir.hash = rte_le_to_cpu_16(
1510 rxdp[j].wb.lower.hi_dword.csum_ip.csum) &
1511 IXGBE_ATR_HASH_MASK;
1512 mb->hash.fdir.id = rte_le_to_cpu_16(
1513 rxdp[j].wb.lower.hi_dword.csum_ip.ip_id);
1517 /* Move mbuf pointers from the S/W ring to the stage */
1518 for (j = 0; j < LOOK_AHEAD; ++j) {
1519 rxq->rx_stage[i + j] = rxep[j].mbuf;
1522 /* stop if all requested packets could not be received */
1523 if (nb_dd != LOOK_AHEAD)
1527 /* clear software ring entries so we can cleanup correctly */
1528 for (i = 0; i < nb_rx; ++i) {
1529 rxq->sw_ring[rxq->rx_tail + i].mbuf = NULL;
1537 ixgbe_rx_alloc_bufs(struct ixgbe_rx_queue *rxq, bool reset_mbuf)
1539 volatile union ixgbe_adv_rx_desc *rxdp;
1540 struct ixgbe_rx_entry *rxep;
1541 struct rte_mbuf *mb;
1546 /* allocate buffers in bulk directly into the S/W ring */
1547 alloc_idx = rxq->rx_free_trigger - (rxq->rx_free_thresh - 1);
1548 rxep = &rxq->sw_ring[alloc_idx];
1549 diag = rte_mempool_get_bulk(rxq->mb_pool, (void *)rxep,
1550 rxq->rx_free_thresh);
1551 if (unlikely(diag != 0))
1554 rxdp = &rxq->rx_ring[alloc_idx];
1555 for (i = 0; i < rxq->rx_free_thresh; ++i) {
1556 /* populate the static rte mbuf fields */
1561 mb->port = rxq->port_id;
1564 rte_mbuf_refcnt_set(mb, 1);
1565 mb->data_off = RTE_PKTMBUF_HEADROOM;
1567 /* populate the descriptors */
1568 dma_addr = rte_cpu_to_le_64(rte_mbuf_data_dma_addr_default(mb));
1569 rxdp[i].read.hdr_addr = 0;
1570 rxdp[i].read.pkt_addr = dma_addr;
1573 /* update state of internal queue structure */
1574 rxq->rx_free_trigger = rxq->rx_free_trigger + rxq->rx_free_thresh;
1575 if (rxq->rx_free_trigger >= rxq->nb_rx_desc)
1576 rxq->rx_free_trigger = rxq->rx_free_thresh - 1;
1582 static inline uint16_t
1583 ixgbe_rx_fill_from_stage(struct ixgbe_rx_queue *rxq, struct rte_mbuf **rx_pkts,
1586 struct rte_mbuf **stage = &rxq->rx_stage[rxq->rx_next_avail];
1589 /* how many packets are ready to return? */
1590 nb_pkts = (uint16_t)RTE_MIN(nb_pkts, rxq->rx_nb_avail);
1592 /* copy mbuf pointers to the application's packet list */
1593 for (i = 0; i < nb_pkts; ++i)
1594 rx_pkts[i] = stage[i];
1596 /* update internal queue state */
1597 rxq->rx_nb_avail = (uint16_t)(rxq->rx_nb_avail - nb_pkts);
1598 rxq->rx_next_avail = (uint16_t)(rxq->rx_next_avail + nb_pkts);
1603 static inline uint16_t
1604 rx_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
1607 struct ixgbe_rx_queue *rxq = (struct ixgbe_rx_queue *)rx_queue;
1610 /* Any previously recv'd pkts will be returned from the Rx stage */
1611 if (rxq->rx_nb_avail)
1612 return ixgbe_rx_fill_from_stage(rxq, rx_pkts, nb_pkts);
1614 /* Scan the H/W ring for packets to receive */
1615 nb_rx = (uint16_t)ixgbe_rx_scan_hw_ring(rxq);
1617 /* update internal queue state */
1618 rxq->rx_next_avail = 0;
1619 rxq->rx_nb_avail = nb_rx;
1620 rxq->rx_tail = (uint16_t)(rxq->rx_tail + nb_rx);
1622 /* if required, allocate new buffers to replenish descriptors */
1623 if (rxq->rx_tail > rxq->rx_free_trigger) {
1624 uint16_t cur_free_trigger = rxq->rx_free_trigger;
1626 if (ixgbe_rx_alloc_bufs(rxq, true) != 0) {
1629 PMD_RX_LOG(DEBUG, "RX mbuf alloc failed port_id=%u "
1630 "queue_id=%u", (unsigned) rxq->port_id,
1631 (unsigned) rxq->queue_id);
1633 rte_eth_devices[rxq->port_id].data->rx_mbuf_alloc_failed +=
1634 rxq->rx_free_thresh;
1637 * Need to rewind any previous receives if we cannot
1638 * allocate new buffers to replenish the old ones.
1640 rxq->rx_nb_avail = 0;
1641 rxq->rx_tail = (uint16_t)(rxq->rx_tail - nb_rx);
1642 for (i = 0, j = rxq->rx_tail; i < nb_rx; ++i, ++j)
1643 rxq->sw_ring[j].mbuf = rxq->rx_stage[i];
1648 /* update tail pointer */
1650 IXGBE_PCI_REG_WRITE_RELAXED(rxq->rdt_reg_addr,
1654 if (rxq->rx_tail >= rxq->nb_rx_desc)
1657 /* received any packets this loop? */
1658 if (rxq->rx_nb_avail)
1659 return ixgbe_rx_fill_from_stage(rxq, rx_pkts, nb_pkts);
1664 /* split requests into chunks of size RTE_PMD_IXGBE_RX_MAX_BURST */
1666 ixgbe_recv_pkts_bulk_alloc(void *rx_queue, struct rte_mbuf **rx_pkts,
1671 if (unlikely(nb_pkts == 0))
1674 if (likely(nb_pkts <= RTE_PMD_IXGBE_RX_MAX_BURST))
1675 return rx_recv_pkts(rx_queue, rx_pkts, nb_pkts);
1677 /* request is relatively large, chunk it up */
1682 n = (uint16_t)RTE_MIN(nb_pkts, RTE_PMD_IXGBE_RX_MAX_BURST);
1683 ret = rx_recv_pkts(rx_queue, &rx_pkts[nb_rx], n);
1684 nb_rx = (uint16_t)(nb_rx + ret);
1685 nb_pkts = (uint16_t)(nb_pkts - ret);
1694 ixgbe_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
1697 struct ixgbe_rx_queue *rxq;
1698 volatile union ixgbe_adv_rx_desc *rx_ring;
1699 volatile union ixgbe_adv_rx_desc *rxdp;
1700 struct ixgbe_rx_entry *sw_ring;
1701 struct ixgbe_rx_entry *rxe;
1702 struct rte_mbuf *rxm;
1703 struct rte_mbuf *nmb;
1704 union ixgbe_adv_rx_desc rxd;
1713 uint64_t vlan_flags;
1718 rx_id = rxq->rx_tail;
1719 rx_ring = rxq->rx_ring;
1720 sw_ring = rxq->sw_ring;
1721 vlan_flags = rxq->vlan_flags;
1722 while (nb_rx < nb_pkts) {
1724 * The order of operations here is important as the DD status
1725 * bit must not be read after any other descriptor fields.
1726 * rx_ring and rxdp are pointing to volatile data so the order
1727 * of accesses cannot be reordered by the compiler. If they were
1728 * not volatile, they could be reordered which could lead to
1729 * using invalid descriptor fields when read from rxd.
1731 rxdp = &rx_ring[rx_id];
1732 staterr = rxdp->wb.upper.status_error;
1733 if (!(staterr & rte_cpu_to_le_32(IXGBE_RXDADV_STAT_DD)))
1740 * If the IXGBE_RXDADV_STAT_EOP flag is not set, the RX packet
1741 * is likely to be invalid and to be dropped by the various
1742 * validation checks performed by the network stack.
1744 * Allocate a new mbuf to replenish the RX ring descriptor.
1745 * If the allocation fails:
1746 * - arrange for that RX descriptor to be the first one
1747 * being parsed the next time the receive function is
1748 * invoked [on the same queue].
1750 * - Stop parsing the RX ring and return immediately.
1752 * This policy do not drop the packet received in the RX
1753 * descriptor for which the allocation of a new mbuf failed.
1754 * Thus, it allows that packet to be later retrieved if
1755 * mbuf have been freed in the mean time.
1756 * As a side effect, holding RX descriptors instead of
1757 * systematically giving them back to the NIC may lead to
1758 * RX ring exhaustion situations.
1759 * However, the NIC can gracefully prevent such situations
1760 * to happen by sending specific "back-pressure" flow control
1761 * frames to its peer(s).
1763 PMD_RX_LOG(DEBUG, "port_id=%u queue_id=%u rx_id=%u "
1764 "ext_err_stat=0x%08x pkt_len=%u",
1765 (unsigned) rxq->port_id, (unsigned) rxq->queue_id,
1766 (unsigned) rx_id, (unsigned) staterr,
1767 (unsigned) rte_le_to_cpu_16(rxd.wb.upper.length));
1769 nmb = rte_mbuf_raw_alloc(rxq->mb_pool);
1771 PMD_RX_LOG(DEBUG, "RX mbuf alloc failed port_id=%u "
1772 "queue_id=%u", (unsigned) rxq->port_id,
1773 (unsigned) rxq->queue_id);
1774 rte_eth_devices[rxq->port_id].data->rx_mbuf_alloc_failed++;
1779 rxe = &sw_ring[rx_id];
1781 if (rx_id == rxq->nb_rx_desc)
1784 /* Prefetch next mbuf while processing current one. */
1785 rte_ixgbe_prefetch(sw_ring[rx_id].mbuf);
1788 * When next RX descriptor is on a cache-line boundary,
1789 * prefetch the next 4 RX descriptors and the next 8 pointers
1792 if ((rx_id & 0x3) == 0) {
1793 rte_ixgbe_prefetch(&rx_ring[rx_id]);
1794 rte_ixgbe_prefetch(&sw_ring[rx_id]);
1800 rte_cpu_to_le_64(rte_mbuf_data_dma_addr_default(nmb));
1801 rxdp->read.hdr_addr = 0;
1802 rxdp->read.pkt_addr = dma_addr;
1805 * Initialize the returned mbuf.
1806 * 1) setup generic mbuf fields:
1807 * - number of segments,
1810 * - RX port identifier.
1811 * 2) integrate hardware offload data, if any:
1812 * - RSS flag & hash,
1813 * - IP checksum flag,
1814 * - VLAN TCI, if any,
1817 pkt_len = (uint16_t) (rte_le_to_cpu_16(rxd.wb.upper.length) -
1819 rxm->data_off = RTE_PKTMBUF_HEADROOM;
1820 rte_packet_prefetch((char *)rxm->buf_addr + rxm->data_off);
1823 rxm->pkt_len = pkt_len;
1824 rxm->data_len = pkt_len;
1825 rxm->port = rxq->port_id;
1827 pkt_info = rte_le_to_cpu_32(rxd.wb.lower.lo_dword.data);
1828 /* Only valid if PKT_RX_VLAN_PKT set in pkt_flags */
1829 rxm->vlan_tci = rte_le_to_cpu_16(rxd.wb.upper.vlan);
1831 pkt_flags = rx_desc_status_to_pkt_flags(staterr, vlan_flags);
1832 pkt_flags = pkt_flags | rx_desc_error_to_pkt_flags(staterr);
1833 pkt_flags = pkt_flags |
1834 ixgbe_rxd_pkt_info_to_pkt_flags((uint16_t)pkt_info);
1835 rxm->ol_flags = pkt_flags;
1837 ixgbe_rxd_pkt_info_to_pkt_type(pkt_info,
1838 rxq->pkt_type_mask);
1840 if (likely(pkt_flags & PKT_RX_RSS_HASH))
1841 rxm->hash.rss = rte_le_to_cpu_32(
1842 rxd.wb.lower.hi_dword.rss);
1843 else if (pkt_flags & PKT_RX_FDIR) {
1844 rxm->hash.fdir.hash = rte_le_to_cpu_16(
1845 rxd.wb.lower.hi_dword.csum_ip.csum) &
1846 IXGBE_ATR_HASH_MASK;
1847 rxm->hash.fdir.id = rte_le_to_cpu_16(
1848 rxd.wb.lower.hi_dword.csum_ip.ip_id);
1851 * Store the mbuf address into the next entry of the array
1852 * of returned packets.
1854 rx_pkts[nb_rx++] = rxm;
1856 rxq->rx_tail = rx_id;
1859 * If the number of free RX descriptors is greater than the RX free
1860 * threshold of the queue, advance the Receive Descriptor Tail (RDT)
1862 * Update the RDT with the value of the last processed RX descriptor
1863 * minus 1, to guarantee that the RDT register is never equal to the
1864 * RDH register, which creates a "full" ring situtation from the
1865 * hardware point of view...
1867 nb_hold = (uint16_t) (nb_hold + rxq->nb_rx_hold);
1868 if (nb_hold > rxq->rx_free_thresh) {
1869 PMD_RX_LOG(DEBUG, "port_id=%u queue_id=%u rx_tail=%u "
1870 "nb_hold=%u nb_rx=%u",
1871 (unsigned) rxq->port_id, (unsigned) rxq->queue_id,
1872 (unsigned) rx_id, (unsigned) nb_hold,
1874 rx_id = (uint16_t) ((rx_id == 0) ?
1875 (rxq->nb_rx_desc - 1) : (rx_id - 1));
1876 IXGBE_PCI_REG_WRITE(rxq->rdt_reg_addr, rx_id);
1879 rxq->nb_rx_hold = nb_hold;
1884 * Detect an RSC descriptor.
1886 static inline uint32_t
1887 ixgbe_rsc_count(union ixgbe_adv_rx_desc *rx)
1889 return (rte_le_to_cpu_32(rx->wb.lower.lo_dword.data) &
1890 IXGBE_RXDADV_RSCCNT_MASK) >> IXGBE_RXDADV_RSCCNT_SHIFT;
1894 * ixgbe_fill_cluster_head_buf - fill the first mbuf of the returned packet
1896 * Fill the following info in the HEAD buffer of the Rx cluster:
1897 * - RX port identifier
1898 * - hardware offload data, if any:
1900 * - IP checksum flag
1901 * - VLAN TCI, if any
1903 * @head HEAD of the packet cluster
1904 * @desc HW descriptor to get data from
1905 * @rxq Pointer to the Rx queue
1908 ixgbe_fill_cluster_head_buf(
1909 struct rte_mbuf *head,
1910 union ixgbe_adv_rx_desc *desc,
1911 struct ixgbe_rx_queue *rxq,
1917 head->port = rxq->port_id;
1919 /* The vlan_tci field is only valid when PKT_RX_VLAN_PKT is
1920 * set in the pkt_flags field.
1922 head->vlan_tci = rte_le_to_cpu_16(desc->wb.upper.vlan);
1923 pkt_info = rte_le_to_cpu_32(desc->wb.lower.lo_dword.data);
1924 pkt_flags = rx_desc_status_to_pkt_flags(staterr, rxq->vlan_flags);
1925 pkt_flags |= rx_desc_error_to_pkt_flags(staterr);
1926 pkt_flags |= ixgbe_rxd_pkt_info_to_pkt_flags((uint16_t)pkt_info);
1927 head->ol_flags = pkt_flags;
1929 ixgbe_rxd_pkt_info_to_pkt_type(pkt_info, rxq->pkt_type_mask);
1931 if (likely(pkt_flags & PKT_RX_RSS_HASH))
1932 head->hash.rss = rte_le_to_cpu_32(desc->wb.lower.hi_dword.rss);
1933 else if (pkt_flags & PKT_RX_FDIR) {
1934 head->hash.fdir.hash =
1935 rte_le_to_cpu_16(desc->wb.lower.hi_dword.csum_ip.csum)
1936 & IXGBE_ATR_HASH_MASK;
1937 head->hash.fdir.id =
1938 rte_le_to_cpu_16(desc->wb.lower.hi_dword.csum_ip.ip_id);
1943 * ixgbe_recv_pkts_lro - receive handler for and LRO case.
1945 * @rx_queue Rx queue handle
1946 * @rx_pkts table of received packets
1947 * @nb_pkts size of rx_pkts table
1948 * @bulk_alloc if TRUE bulk allocation is used for a HW ring refilling
1950 * Handles the Rx HW ring completions when RSC feature is configured. Uses an
1951 * additional ring of ixgbe_rsc_entry's that will hold the relevant RSC info.
1953 * We use the same logic as in Linux and in FreeBSD ixgbe drivers:
1954 * 1) When non-EOP RSC completion arrives:
1955 * a) Update the HEAD of the current RSC aggregation cluster with the new
1956 * segment's data length.
1957 * b) Set the "next" pointer of the current segment to point to the segment
1958 * at the NEXTP index.
1959 * c) Pass the HEAD of RSC aggregation cluster on to the next NEXTP entry
1960 * in the sw_rsc_ring.
1961 * 2) When EOP arrives we just update the cluster's total length and offload
1962 * flags and deliver the cluster up to the upper layers. In our case - put it
1963 * in the rx_pkts table.
1965 * Returns the number of received packets/clusters (according to the "bulk
1966 * receive" interface).
1968 static inline uint16_t
1969 ixgbe_recv_pkts_lro(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts,
1972 struct ixgbe_rx_queue *rxq = rx_queue;
1973 volatile union ixgbe_adv_rx_desc *rx_ring = rxq->rx_ring;
1974 struct ixgbe_rx_entry *sw_ring = rxq->sw_ring;
1975 struct ixgbe_scattered_rx_entry *sw_sc_ring = rxq->sw_sc_ring;
1976 uint16_t rx_id = rxq->rx_tail;
1978 uint16_t nb_hold = rxq->nb_rx_hold;
1979 uint16_t prev_id = rxq->rx_tail;
1981 while (nb_rx < nb_pkts) {
1983 struct ixgbe_rx_entry *rxe;
1984 struct ixgbe_scattered_rx_entry *sc_entry;
1985 struct ixgbe_scattered_rx_entry *next_sc_entry;
1986 struct ixgbe_rx_entry *next_rxe = NULL;
1987 struct rte_mbuf *first_seg;
1988 struct rte_mbuf *rxm;
1989 struct rte_mbuf *nmb;
1990 union ixgbe_adv_rx_desc rxd;
1993 volatile union ixgbe_adv_rx_desc *rxdp;
1998 * The code in this whole file uses the volatile pointer to
1999 * ensure the read ordering of the status and the rest of the
2000 * descriptor fields (on the compiler level only!!!). This is so
2001 * UGLY - why not to just use the compiler barrier instead? DPDK
2002 * even has the rte_compiler_barrier() for that.
2004 * But most importantly this is just wrong because this doesn't
2005 * ensure memory ordering in a general case at all. For
2006 * instance, DPDK is supposed to work on Power CPUs where
2007 * compiler barrier may just not be enough!
2009 * I tried to write only this function properly to have a
2010 * starting point (as a part of an LRO/RSC series) but the
2011 * compiler cursed at me when I tried to cast away the
2012 * "volatile" from rx_ring (yes, it's volatile too!!!). So, I'm
2013 * keeping it the way it is for now.
2015 * The code in this file is broken in so many other places and
2016 * will just not work on a big endian CPU anyway therefore the
2017 * lines below will have to be revisited together with the rest
2021 * - Get rid of "volatile" crap and let the compiler do its
2023 * - Use the proper memory barrier (rte_rmb()) to ensure the
2024 * memory ordering below.
2026 rxdp = &rx_ring[rx_id];
2027 staterr = rte_le_to_cpu_32(rxdp->wb.upper.status_error);
2029 if (!(staterr & IXGBE_RXDADV_STAT_DD))
2034 PMD_RX_LOG(DEBUG, "port_id=%u queue_id=%u rx_id=%u "
2035 "staterr=0x%x data_len=%u",
2036 rxq->port_id, rxq->queue_id, rx_id, staterr,
2037 rte_le_to_cpu_16(rxd.wb.upper.length));
2040 nmb = rte_mbuf_raw_alloc(rxq->mb_pool);
2042 PMD_RX_LOG(DEBUG, "RX mbuf alloc failed "
2043 "port_id=%u queue_id=%u",
2044 rxq->port_id, rxq->queue_id);
2046 rte_eth_devices[rxq->port_id].data->
2047 rx_mbuf_alloc_failed++;
2050 } else if (nb_hold > rxq->rx_free_thresh) {
2051 uint16_t next_rdt = rxq->rx_free_trigger;
2053 if (!ixgbe_rx_alloc_bufs(rxq, false)) {
2055 IXGBE_PCI_REG_WRITE_RELAXED(rxq->rdt_reg_addr,
2057 nb_hold -= rxq->rx_free_thresh;
2059 PMD_RX_LOG(DEBUG, "RX bulk alloc failed "
2060 "port_id=%u queue_id=%u",
2061 rxq->port_id, rxq->queue_id);
2063 rte_eth_devices[rxq->port_id].data->
2064 rx_mbuf_alloc_failed++;
2070 rxe = &sw_ring[rx_id];
2071 eop = staterr & IXGBE_RXDADV_STAT_EOP;
2073 next_id = rx_id + 1;
2074 if (next_id == rxq->nb_rx_desc)
2077 /* Prefetch next mbuf while processing current one. */
2078 rte_ixgbe_prefetch(sw_ring[next_id].mbuf);
2081 * When next RX descriptor is on a cache-line boundary,
2082 * prefetch the next 4 RX descriptors and the next 4 pointers
2085 if ((next_id & 0x3) == 0) {
2086 rte_ixgbe_prefetch(&rx_ring[next_id]);
2087 rte_ixgbe_prefetch(&sw_ring[next_id]);
2094 rte_cpu_to_le_64(rte_mbuf_data_dma_addr_default(nmb));
2096 * Update RX descriptor with the physical address of the
2097 * new data buffer of the new allocated mbuf.
2101 rxm->data_off = RTE_PKTMBUF_HEADROOM;
2102 rxdp->read.hdr_addr = 0;
2103 rxdp->read.pkt_addr = dma;
2108 * Set data length & data buffer address of mbuf.
2110 data_len = rte_le_to_cpu_16(rxd.wb.upper.length);
2111 rxm->data_len = data_len;
2116 * Get next descriptor index:
2117 * - For RSC it's in the NEXTP field.
2118 * - For a scattered packet - it's just a following
2121 if (ixgbe_rsc_count(&rxd))
2123 (staterr & IXGBE_RXDADV_NEXTP_MASK) >>
2124 IXGBE_RXDADV_NEXTP_SHIFT;
2128 next_sc_entry = &sw_sc_ring[nextp_id];
2129 next_rxe = &sw_ring[nextp_id];
2130 rte_ixgbe_prefetch(next_rxe);
2133 sc_entry = &sw_sc_ring[rx_id];
2134 first_seg = sc_entry->fbuf;
2135 sc_entry->fbuf = NULL;
2138 * If this is the first buffer of the received packet,
2139 * set the pointer to the first mbuf of the packet and
2140 * initialize its context.
2141 * Otherwise, update the total length and the number of segments
2142 * of the current scattered packet, and update the pointer to
2143 * the last mbuf of the current packet.
2145 if (first_seg == NULL) {
2147 first_seg->pkt_len = data_len;
2148 first_seg->nb_segs = 1;
2150 first_seg->pkt_len += data_len;
2151 first_seg->nb_segs++;
2158 * If this is not the last buffer of the received packet, update
2159 * the pointer to the first mbuf at the NEXTP entry in the
2160 * sw_sc_ring and continue to parse the RX ring.
2162 if (!eop && next_rxe) {
2163 rxm->next = next_rxe->mbuf;
2164 next_sc_entry->fbuf = first_seg;
2169 * This is the last buffer of the received packet - return
2170 * the current cluster to the user.
2174 /* Initialize the first mbuf of the returned packet */
2175 ixgbe_fill_cluster_head_buf(first_seg, &rxd, rxq, staterr);
2178 * Deal with the case, when HW CRC srip is disabled.
2179 * That can't happen when LRO is enabled, but still could
2180 * happen for scattered RX mode.
2182 first_seg->pkt_len -= rxq->crc_len;
2183 if (unlikely(rxm->data_len <= rxq->crc_len)) {
2184 struct rte_mbuf *lp;
2186 for (lp = first_seg; lp->next != rxm; lp = lp->next)
2189 first_seg->nb_segs--;
2190 lp->data_len -= rxq->crc_len - rxm->data_len;
2192 rte_pktmbuf_free_seg(rxm);
2194 rxm->data_len -= rxq->crc_len;
2196 /* Prefetch data of first segment, if configured to do so. */
2197 rte_packet_prefetch((char *)first_seg->buf_addr +
2198 first_seg->data_off);
2201 * Store the mbuf address into the next entry of the array
2202 * of returned packets.
2204 rx_pkts[nb_rx++] = first_seg;
2208 * Record index of the next RX descriptor to probe.
2210 rxq->rx_tail = rx_id;
2213 * If the number of free RX descriptors is greater than the RX free
2214 * threshold of the queue, advance the Receive Descriptor Tail (RDT)
2216 * Update the RDT with the value of the last processed RX descriptor
2217 * minus 1, to guarantee that the RDT register is never equal to the
2218 * RDH register, which creates a "full" ring situtation from the
2219 * hardware point of view...
2221 if (!bulk_alloc && nb_hold > rxq->rx_free_thresh) {
2222 PMD_RX_LOG(DEBUG, "port_id=%u queue_id=%u rx_tail=%u "
2223 "nb_hold=%u nb_rx=%u",
2224 rxq->port_id, rxq->queue_id, rx_id, nb_hold, nb_rx);
2227 IXGBE_PCI_REG_WRITE_RELAXED(rxq->rdt_reg_addr, prev_id);
2231 rxq->nb_rx_hold = nb_hold;
2236 ixgbe_recv_pkts_lro_single_alloc(void *rx_queue, struct rte_mbuf **rx_pkts,
2239 return ixgbe_recv_pkts_lro(rx_queue, rx_pkts, nb_pkts, false);
2243 ixgbe_recv_pkts_lro_bulk_alloc(void *rx_queue, struct rte_mbuf **rx_pkts,
2246 return ixgbe_recv_pkts_lro(rx_queue, rx_pkts, nb_pkts, true);
2249 /*********************************************************************
2251 * Queue management functions
2253 **********************************************************************/
2255 static void __attribute__((cold))
2256 ixgbe_tx_queue_release_mbufs(struct ixgbe_tx_queue *txq)
2260 if (txq->sw_ring != NULL) {
2261 for (i = 0; i < txq->nb_tx_desc; i++) {
2262 if (txq->sw_ring[i].mbuf != NULL) {
2263 rte_pktmbuf_free_seg(txq->sw_ring[i].mbuf);
2264 txq->sw_ring[i].mbuf = NULL;
2270 static void __attribute__((cold))
2271 ixgbe_tx_free_swring(struct ixgbe_tx_queue *txq)
2274 txq->sw_ring != NULL)
2275 rte_free(txq->sw_ring);
2278 static void __attribute__((cold))
2279 ixgbe_tx_queue_release(struct ixgbe_tx_queue *txq)
2281 if (txq != NULL && txq->ops != NULL) {
2282 txq->ops->release_mbufs(txq);
2283 txq->ops->free_swring(txq);
2288 void __attribute__((cold))
2289 ixgbe_dev_tx_queue_release(void *txq)
2291 ixgbe_tx_queue_release(txq);
2294 /* (Re)set dynamic ixgbe_tx_queue fields to defaults */
2295 static void __attribute__((cold))
2296 ixgbe_reset_tx_queue(struct ixgbe_tx_queue *txq)
2298 static const union ixgbe_adv_tx_desc zeroed_desc = {{0}};
2299 struct ixgbe_tx_entry *txe = txq->sw_ring;
2302 /* Zero out HW ring memory */
2303 for (i = 0; i < txq->nb_tx_desc; i++) {
2304 txq->tx_ring[i] = zeroed_desc;
2307 /* Initialize SW ring entries */
2308 prev = (uint16_t) (txq->nb_tx_desc - 1);
2309 for (i = 0; i < txq->nb_tx_desc; i++) {
2310 volatile union ixgbe_adv_tx_desc *txd = &txq->tx_ring[i];
2312 txd->wb.status = rte_cpu_to_le_32(IXGBE_TXD_STAT_DD);
2315 txe[prev].next_id = i;
2319 txq->tx_next_dd = (uint16_t)(txq->tx_rs_thresh - 1);
2320 txq->tx_next_rs = (uint16_t)(txq->tx_rs_thresh - 1);
2323 txq->nb_tx_used = 0;
2325 * Always allow 1 descriptor to be un-allocated to avoid
2326 * a H/W race condition
2328 txq->last_desc_cleaned = (uint16_t)(txq->nb_tx_desc - 1);
2329 txq->nb_tx_free = (uint16_t)(txq->nb_tx_desc - 1);
2331 memset((void *)&txq->ctx_cache, 0,
2332 IXGBE_CTX_NUM * sizeof(struct ixgbe_advctx_info));
2335 static const struct ixgbe_txq_ops def_txq_ops = {
2336 .release_mbufs = ixgbe_tx_queue_release_mbufs,
2337 .free_swring = ixgbe_tx_free_swring,
2338 .reset = ixgbe_reset_tx_queue,
2341 /* Takes an ethdev and a queue and sets up the tx function to be used based on
2342 * the queue parameters. Used in tx_queue_setup by primary process and then
2343 * in dev_init by secondary process when attaching to an existing ethdev.
2345 void __attribute__((cold))
2346 ixgbe_set_tx_function(struct rte_eth_dev *dev, struct ixgbe_tx_queue *txq)
2348 /* Use a simple Tx queue (no offloads, no multi segs) if possible */
2349 if (((txq->txq_flags & IXGBE_SIMPLE_FLAGS) == IXGBE_SIMPLE_FLAGS)
2350 && (txq->tx_rs_thresh >= RTE_PMD_IXGBE_TX_MAX_BURST)) {
2351 PMD_INIT_LOG(DEBUG, "Using simple tx code path");
2352 dev->tx_pkt_prepare = NULL;
2353 #ifdef RTE_IXGBE_INC_VECTOR
2354 if (txq->tx_rs_thresh <= RTE_IXGBE_TX_MAX_FREE_BUF_SZ &&
2355 (rte_eal_process_type() != RTE_PROC_PRIMARY ||
2356 ixgbe_txq_vec_setup(txq) == 0)) {
2357 PMD_INIT_LOG(DEBUG, "Vector tx enabled.");
2358 dev->tx_pkt_burst = ixgbe_xmit_pkts_vec;
2361 dev->tx_pkt_burst = ixgbe_xmit_pkts_simple;
2363 PMD_INIT_LOG(DEBUG, "Using full-featured tx code path");
2365 " - txq_flags = %lx " "[IXGBE_SIMPLE_FLAGS=%lx]",
2366 (unsigned long)txq->txq_flags,
2367 (unsigned long)IXGBE_SIMPLE_FLAGS);
2369 " - tx_rs_thresh = %lu " "[RTE_PMD_IXGBE_TX_MAX_BURST=%lu]",
2370 (unsigned long)txq->tx_rs_thresh,
2371 (unsigned long)RTE_PMD_IXGBE_TX_MAX_BURST);
2372 dev->tx_pkt_burst = ixgbe_xmit_pkts;
2373 dev->tx_pkt_prepare = ixgbe_prep_pkts;
2377 int __attribute__((cold))
2378 ixgbe_dev_tx_queue_setup(struct rte_eth_dev *dev,
2381 unsigned int socket_id,
2382 const struct rte_eth_txconf *tx_conf)
2384 const struct rte_memzone *tz;
2385 struct ixgbe_tx_queue *txq;
2386 struct ixgbe_hw *hw;
2387 uint16_t tx_rs_thresh, tx_free_thresh;
2389 PMD_INIT_FUNC_TRACE();
2390 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2393 * Validate number of transmit descriptors.
2394 * It must not exceed hardware maximum, and must be multiple
2397 if (nb_desc % IXGBE_TXD_ALIGN != 0 ||
2398 (nb_desc > IXGBE_MAX_RING_DESC) ||
2399 (nb_desc < IXGBE_MIN_RING_DESC)) {
2404 * The following two parameters control the setting of the RS bit on
2405 * transmit descriptors.
2406 * TX descriptors will have their RS bit set after txq->tx_rs_thresh
2407 * descriptors have been used.
2408 * The TX descriptor ring will be cleaned after txq->tx_free_thresh
2409 * descriptors are used or if the number of descriptors required
2410 * to transmit a packet is greater than the number of free TX
2412 * The following constraints must be satisfied:
2413 * tx_rs_thresh must be greater than 0.
2414 * tx_rs_thresh must be less than the size of the ring minus 2.
2415 * tx_rs_thresh must be less than or equal to tx_free_thresh.
2416 * tx_rs_thresh must be a divisor of the ring size.
2417 * tx_free_thresh must be greater than 0.
2418 * tx_free_thresh must be less than the size of the ring minus 3.
2419 * One descriptor in the TX ring is used as a sentinel to avoid a
2420 * H/W race condition, hence the maximum threshold constraints.
2421 * When set to zero use default values.
2423 tx_rs_thresh = (uint16_t)((tx_conf->tx_rs_thresh) ?
2424 tx_conf->tx_rs_thresh : DEFAULT_TX_RS_THRESH);
2425 tx_free_thresh = (uint16_t)((tx_conf->tx_free_thresh) ?
2426 tx_conf->tx_free_thresh : DEFAULT_TX_FREE_THRESH);
2427 if (tx_rs_thresh >= (nb_desc - 2)) {
2428 PMD_INIT_LOG(ERR, "tx_rs_thresh must be less than the number "
2429 "of TX descriptors minus 2. (tx_rs_thresh=%u "
2430 "port=%d queue=%d)", (unsigned int)tx_rs_thresh,
2431 (int)dev->data->port_id, (int)queue_idx);
2434 if (tx_rs_thresh > DEFAULT_TX_RS_THRESH) {
2435 PMD_INIT_LOG(ERR, "tx_rs_thresh must be less or equal than %u. "
2436 "(tx_rs_thresh=%u port=%d queue=%d)",
2437 DEFAULT_TX_RS_THRESH, (unsigned int)tx_rs_thresh,
2438 (int)dev->data->port_id, (int)queue_idx);
2441 if (tx_free_thresh >= (nb_desc - 3)) {
2442 PMD_INIT_LOG(ERR, "tx_rs_thresh must be less than the "
2443 "tx_free_thresh must be less than the number of "
2444 "TX descriptors minus 3. (tx_free_thresh=%u "
2445 "port=%d queue=%d)",
2446 (unsigned int)tx_free_thresh,
2447 (int)dev->data->port_id, (int)queue_idx);
2450 if (tx_rs_thresh > tx_free_thresh) {
2451 PMD_INIT_LOG(ERR, "tx_rs_thresh must be less than or equal to "
2452 "tx_free_thresh. (tx_free_thresh=%u "
2453 "tx_rs_thresh=%u port=%d queue=%d)",
2454 (unsigned int)tx_free_thresh,
2455 (unsigned int)tx_rs_thresh,
2456 (int)dev->data->port_id,
2460 if ((nb_desc % tx_rs_thresh) != 0) {
2461 PMD_INIT_LOG(ERR, "tx_rs_thresh must be a divisor of the "
2462 "number of TX descriptors. (tx_rs_thresh=%u "
2463 "port=%d queue=%d)", (unsigned int)tx_rs_thresh,
2464 (int)dev->data->port_id, (int)queue_idx);
2469 * If rs_bit_thresh is greater than 1, then TX WTHRESH should be
2470 * set to 0. If WTHRESH is greater than zero, the RS bit is ignored
2471 * by the NIC and all descriptors are written back after the NIC
2472 * accumulates WTHRESH descriptors.
2474 if ((tx_rs_thresh > 1) && (tx_conf->tx_thresh.wthresh != 0)) {
2475 PMD_INIT_LOG(ERR, "TX WTHRESH must be set to 0 if "
2476 "tx_rs_thresh is greater than 1. (tx_rs_thresh=%u "
2477 "port=%d queue=%d)", (unsigned int)tx_rs_thresh,
2478 (int)dev->data->port_id, (int)queue_idx);
2482 /* Free memory prior to re-allocation if needed... */
2483 if (dev->data->tx_queues[queue_idx] != NULL) {
2484 ixgbe_tx_queue_release(dev->data->tx_queues[queue_idx]);
2485 dev->data->tx_queues[queue_idx] = NULL;
2488 /* First allocate the tx queue data structure */
2489 txq = rte_zmalloc_socket("ethdev TX queue", sizeof(struct ixgbe_tx_queue),
2490 RTE_CACHE_LINE_SIZE, socket_id);
2495 * Allocate TX ring hardware descriptors. A memzone large enough to
2496 * handle the maximum ring size is allocated in order to allow for
2497 * resizing in later calls to the queue setup function.
2499 tz = rte_eth_dma_zone_reserve(dev, "tx_ring", queue_idx,
2500 sizeof(union ixgbe_adv_tx_desc) * IXGBE_MAX_RING_DESC,
2501 IXGBE_ALIGN, socket_id);
2503 ixgbe_tx_queue_release(txq);
2507 txq->nb_tx_desc = nb_desc;
2508 txq->tx_rs_thresh = tx_rs_thresh;
2509 txq->tx_free_thresh = tx_free_thresh;
2510 txq->pthresh = tx_conf->tx_thresh.pthresh;
2511 txq->hthresh = tx_conf->tx_thresh.hthresh;
2512 txq->wthresh = tx_conf->tx_thresh.wthresh;
2513 txq->queue_id = queue_idx;
2514 txq->reg_idx = (uint16_t)((RTE_ETH_DEV_SRIOV(dev).active == 0) ?
2515 queue_idx : RTE_ETH_DEV_SRIOV(dev).def_pool_q_idx + queue_idx);
2516 txq->port_id = dev->data->port_id;
2517 txq->txq_flags = tx_conf->txq_flags;
2518 txq->ops = &def_txq_ops;
2519 txq->tx_deferred_start = tx_conf->tx_deferred_start;
2522 * Modification to set VFTDT for virtual function if vf is detected
2524 if (hw->mac.type == ixgbe_mac_82599_vf ||
2525 hw->mac.type == ixgbe_mac_X540_vf ||
2526 hw->mac.type == ixgbe_mac_X550_vf ||
2527 hw->mac.type == ixgbe_mac_X550EM_x_vf ||
2528 hw->mac.type == ixgbe_mac_X550EM_a_vf)
2529 txq->tdt_reg_addr = IXGBE_PCI_REG_ADDR(hw, IXGBE_VFTDT(queue_idx));
2531 txq->tdt_reg_addr = IXGBE_PCI_REG_ADDR(hw, IXGBE_TDT(txq->reg_idx));
2533 txq->tx_ring_phys_addr = rte_mem_phy2mch(tz->memseg_id, tz->phys_addr);
2534 txq->tx_ring = (union ixgbe_adv_tx_desc *) tz->addr;
2536 /* Allocate software ring */
2537 txq->sw_ring = rte_zmalloc_socket("txq->sw_ring",
2538 sizeof(struct ixgbe_tx_entry) * nb_desc,
2539 RTE_CACHE_LINE_SIZE, socket_id);
2540 if (txq->sw_ring == NULL) {
2541 ixgbe_tx_queue_release(txq);
2544 PMD_INIT_LOG(DEBUG, "sw_ring=%p hw_ring=%p dma_addr=0x%"PRIx64,
2545 txq->sw_ring, txq->tx_ring, txq->tx_ring_phys_addr);
2547 /* set up vector or scalar TX function as appropriate */
2548 ixgbe_set_tx_function(dev, txq);
2550 txq->ops->reset(txq);
2552 dev->data->tx_queues[queue_idx] = txq;
2559 * ixgbe_free_sc_cluster - free the not-yet-completed scattered cluster
2561 * The "next" pointer of the last segment of (not-yet-completed) RSC clusters
2562 * in the sw_rsc_ring is not set to NULL but rather points to the next
2563 * mbuf of this RSC aggregation (that has not been completed yet and still
2564 * resides on the HW ring). So, instead of calling for rte_pktmbuf_free() we
2565 * will just free first "nb_segs" segments of the cluster explicitly by calling
2566 * an rte_pktmbuf_free_seg().
2568 * @m scattered cluster head
2570 static void __attribute__((cold))
2571 ixgbe_free_sc_cluster(struct rte_mbuf *m)
2573 uint8_t i, nb_segs = m->nb_segs;
2574 struct rte_mbuf *next_seg;
2576 for (i = 0; i < nb_segs; i++) {
2578 rte_pktmbuf_free_seg(m);
2583 static void __attribute__((cold))
2584 ixgbe_rx_queue_release_mbufs(struct ixgbe_rx_queue *rxq)
2588 #ifdef RTE_IXGBE_INC_VECTOR
2589 /* SSE Vector driver has a different way of releasing mbufs. */
2590 if (rxq->rx_using_sse) {
2591 ixgbe_rx_queue_release_mbufs_vec(rxq);
2596 if (rxq->sw_ring != NULL) {
2597 for (i = 0; i < rxq->nb_rx_desc; i++) {
2598 if (rxq->sw_ring[i].mbuf != NULL) {
2599 rte_pktmbuf_free_seg(rxq->sw_ring[i].mbuf);
2600 rxq->sw_ring[i].mbuf = NULL;
2603 if (rxq->rx_nb_avail) {
2604 for (i = 0; i < rxq->rx_nb_avail; ++i) {
2605 struct rte_mbuf *mb;
2607 mb = rxq->rx_stage[rxq->rx_next_avail + i];
2608 rte_pktmbuf_free_seg(mb);
2610 rxq->rx_nb_avail = 0;
2614 if (rxq->sw_sc_ring)
2615 for (i = 0; i < rxq->nb_rx_desc; i++)
2616 if (rxq->sw_sc_ring[i].fbuf) {
2617 ixgbe_free_sc_cluster(rxq->sw_sc_ring[i].fbuf);
2618 rxq->sw_sc_ring[i].fbuf = NULL;
2622 static void __attribute__((cold))
2623 ixgbe_rx_queue_release(struct ixgbe_rx_queue *rxq)
2626 ixgbe_rx_queue_release_mbufs(rxq);
2627 rte_free(rxq->sw_ring);
2628 rte_free(rxq->sw_sc_ring);
2633 void __attribute__((cold))
2634 ixgbe_dev_rx_queue_release(void *rxq)
2636 ixgbe_rx_queue_release(rxq);
2640 * Check if Rx Burst Bulk Alloc function can be used.
2642 * 0: the preconditions are satisfied and the bulk allocation function
2644 * -EINVAL: the preconditions are NOT satisfied and the default Rx burst
2645 * function must be used.
2647 static inline int __attribute__((cold))
2648 check_rx_burst_bulk_alloc_preconditions(struct ixgbe_rx_queue *rxq)
2653 * Make sure the following pre-conditions are satisfied:
2654 * rxq->rx_free_thresh >= RTE_PMD_IXGBE_RX_MAX_BURST
2655 * rxq->rx_free_thresh < rxq->nb_rx_desc
2656 * (rxq->nb_rx_desc % rxq->rx_free_thresh) == 0
2657 * Scattered packets are not supported. This should be checked
2658 * outside of this function.
2660 if (!(rxq->rx_free_thresh >= RTE_PMD_IXGBE_RX_MAX_BURST)) {
2661 PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions: "
2662 "rxq->rx_free_thresh=%d, "
2663 "RTE_PMD_IXGBE_RX_MAX_BURST=%d",
2664 rxq->rx_free_thresh, RTE_PMD_IXGBE_RX_MAX_BURST);
2666 } else if (!(rxq->rx_free_thresh < rxq->nb_rx_desc)) {
2667 PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions: "
2668 "rxq->rx_free_thresh=%d, "
2669 "rxq->nb_rx_desc=%d",
2670 rxq->rx_free_thresh, rxq->nb_rx_desc);
2672 } else if (!((rxq->nb_rx_desc % rxq->rx_free_thresh) == 0)) {
2673 PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions: "
2674 "rxq->nb_rx_desc=%d, "
2675 "rxq->rx_free_thresh=%d",
2676 rxq->nb_rx_desc, rxq->rx_free_thresh);
2683 /* Reset dynamic ixgbe_rx_queue fields back to defaults */
2684 static void __attribute__((cold))
2685 ixgbe_reset_rx_queue(struct ixgbe_adapter *adapter, struct ixgbe_rx_queue *rxq)
2687 static const union ixgbe_adv_rx_desc zeroed_desc = {{0}};
2689 uint16_t len = rxq->nb_rx_desc;
2692 * By default, the Rx queue setup function allocates enough memory for
2693 * IXGBE_MAX_RING_DESC. The Rx Burst bulk allocation function requires
2694 * extra memory at the end of the descriptor ring to be zero'd out.
2696 if (adapter->rx_bulk_alloc_allowed)
2697 /* zero out extra memory */
2698 len += RTE_PMD_IXGBE_RX_MAX_BURST;
2701 * Zero out HW ring memory. Zero out extra memory at the end of
2702 * the H/W ring so look-ahead logic in Rx Burst bulk alloc function
2703 * reads extra memory as zeros.
2705 for (i = 0; i < len; i++) {
2706 rxq->rx_ring[i] = zeroed_desc;
2710 * initialize extra software ring entries. Space for these extra
2711 * entries is always allocated
2713 memset(&rxq->fake_mbuf, 0x0, sizeof(rxq->fake_mbuf));
2714 for (i = rxq->nb_rx_desc; i < len; ++i) {
2715 rxq->sw_ring[i].mbuf = &rxq->fake_mbuf;
2718 rxq->rx_nb_avail = 0;
2719 rxq->rx_next_avail = 0;
2720 rxq->rx_free_trigger = (uint16_t)(rxq->rx_free_thresh - 1);
2722 rxq->nb_rx_hold = 0;
2723 rxq->pkt_first_seg = NULL;
2724 rxq->pkt_last_seg = NULL;
2726 #ifdef RTE_IXGBE_INC_VECTOR
2727 rxq->rxrearm_start = 0;
2728 rxq->rxrearm_nb = 0;
2732 int __attribute__((cold))
2733 ixgbe_dev_rx_queue_setup(struct rte_eth_dev *dev,
2736 unsigned int socket_id,
2737 const struct rte_eth_rxconf *rx_conf,
2738 struct rte_mempool *mp)
2740 const struct rte_memzone *rz;
2741 struct ixgbe_rx_queue *rxq;
2742 struct ixgbe_hw *hw;
2744 struct ixgbe_adapter *adapter =
2745 (struct ixgbe_adapter *)dev->data->dev_private;
2747 PMD_INIT_FUNC_TRACE();
2748 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2751 * Validate number of receive descriptors.
2752 * It must not exceed hardware maximum, and must be multiple
2755 if (nb_desc % IXGBE_RXD_ALIGN != 0 ||
2756 (nb_desc > IXGBE_MAX_RING_DESC) ||
2757 (nb_desc < IXGBE_MIN_RING_DESC)) {
2761 /* Free memory prior to re-allocation if needed... */
2762 if (dev->data->rx_queues[queue_idx] != NULL) {
2763 ixgbe_rx_queue_release(dev->data->rx_queues[queue_idx]);
2764 dev->data->rx_queues[queue_idx] = NULL;
2767 /* First allocate the rx queue data structure */
2768 rxq = rte_zmalloc_socket("ethdev RX queue", sizeof(struct ixgbe_rx_queue),
2769 RTE_CACHE_LINE_SIZE, socket_id);
2773 rxq->nb_rx_desc = nb_desc;
2774 rxq->rx_free_thresh = rx_conf->rx_free_thresh;
2775 rxq->queue_id = queue_idx;
2776 rxq->reg_idx = (uint16_t)((RTE_ETH_DEV_SRIOV(dev).active == 0) ?
2777 queue_idx : RTE_ETH_DEV_SRIOV(dev).def_pool_q_idx + queue_idx);
2778 rxq->port_id = dev->data->port_id;
2779 rxq->crc_len = (uint8_t) ((dev->data->dev_conf.rxmode.hw_strip_crc) ?
2781 rxq->drop_en = rx_conf->rx_drop_en;
2782 rxq->rx_deferred_start = rx_conf->rx_deferred_start;
2785 * The packet type in RX descriptor is different for different NICs.
2786 * Some bits are used for x550 but reserved for other NICS.
2787 * So set different masks for different NICs.
2789 if (hw->mac.type == ixgbe_mac_X550 ||
2790 hw->mac.type == ixgbe_mac_X550EM_x ||
2791 hw->mac.type == ixgbe_mac_X550EM_a ||
2792 hw->mac.type == ixgbe_mac_X550_vf ||
2793 hw->mac.type == ixgbe_mac_X550EM_x_vf ||
2794 hw->mac.type == ixgbe_mac_X550EM_a_vf)
2795 rxq->pkt_type_mask = IXGBE_PACKET_TYPE_MASK_X550;
2797 rxq->pkt_type_mask = IXGBE_PACKET_TYPE_MASK_82599;
2800 * Allocate RX ring hardware descriptors. A memzone large enough to
2801 * handle the maximum ring size is allocated in order to allow for
2802 * resizing in later calls to the queue setup function.
2804 rz = rte_eth_dma_zone_reserve(dev, "rx_ring", queue_idx,
2805 RX_RING_SZ, IXGBE_ALIGN, socket_id);
2807 ixgbe_rx_queue_release(rxq);
2812 * Zero init all the descriptors in the ring.
2814 memset(rz->addr, 0, RX_RING_SZ);
2817 * Modified to setup VFRDT for Virtual Function
2819 if (hw->mac.type == ixgbe_mac_82599_vf ||
2820 hw->mac.type == ixgbe_mac_X540_vf ||
2821 hw->mac.type == ixgbe_mac_X550_vf ||
2822 hw->mac.type == ixgbe_mac_X550EM_x_vf ||
2823 hw->mac.type == ixgbe_mac_X550EM_a_vf) {
2825 IXGBE_PCI_REG_ADDR(hw, IXGBE_VFRDT(queue_idx));
2827 IXGBE_PCI_REG_ADDR(hw, IXGBE_VFRDH(queue_idx));
2830 IXGBE_PCI_REG_ADDR(hw, IXGBE_RDT(rxq->reg_idx));
2832 IXGBE_PCI_REG_ADDR(hw, IXGBE_RDH(rxq->reg_idx));
2835 rxq->rx_ring_phys_addr = rte_mem_phy2mch(rz->memseg_id, rz->phys_addr);
2836 rxq->rx_ring = (union ixgbe_adv_rx_desc *) rz->addr;
2839 * Certain constraints must be met in order to use the bulk buffer
2840 * allocation Rx burst function. If any of Rx queues doesn't meet them
2841 * the feature should be disabled for the whole port.
2843 if (check_rx_burst_bulk_alloc_preconditions(rxq)) {
2844 PMD_INIT_LOG(DEBUG, "queue[%d] doesn't meet Rx Bulk Alloc "
2845 "preconditions - canceling the feature for "
2846 "the whole port[%d]",
2847 rxq->queue_id, rxq->port_id);
2848 adapter->rx_bulk_alloc_allowed = false;
2852 * Allocate software ring. Allow for space at the end of the
2853 * S/W ring to make sure look-ahead logic in bulk alloc Rx burst
2854 * function does not access an invalid memory region.
2857 if (adapter->rx_bulk_alloc_allowed)
2858 len += RTE_PMD_IXGBE_RX_MAX_BURST;
2860 rxq->sw_ring = rte_zmalloc_socket("rxq->sw_ring",
2861 sizeof(struct ixgbe_rx_entry) * len,
2862 RTE_CACHE_LINE_SIZE, socket_id);
2863 if (!rxq->sw_ring) {
2864 ixgbe_rx_queue_release(rxq);
2869 * Always allocate even if it's not going to be needed in order to
2870 * simplify the code.
2872 * This ring is used in LRO and Scattered Rx cases and Scattered Rx may
2873 * be requested in ixgbe_dev_rx_init(), which is called later from
2877 rte_zmalloc_socket("rxq->sw_sc_ring",
2878 sizeof(struct ixgbe_scattered_rx_entry) * len,
2879 RTE_CACHE_LINE_SIZE, socket_id);
2880 if (!rxq->sw_sc_ring) {
2881 ixgbe_rx_queue_release(rxq);
2885 PMD_INIT_LOG(DEBUG, "sw_ring=%p sw_sc_ring=%p hw_ring=%p "
2886 "dma_addr=0x%"PRIx64,
2887 rxq->sw_ring, rxq->sw_sc_ring, rxq->rx_ring,
2888 rxq->rx_ring_phys_addr);
2890 if (!rte_is_power_of_2(nb_desc)) {
2891 PMD_INIT_LOG(DEBUG, "queue[%d] doesn't meet Vector Rx "
2892 "preconditions - canceling the feature for "
2893 "the whole port[%d]",
2894 rxq->queue_id, rxq->port_id);
2895 adapter->rx_vec_allowed = false;
2897 ixgbe_rxq_vec_setup(rxq);
2899 dev->data->rx_queues[queue_idx] = rxq;
2901 ixgbe_reset_rx_queue(adapter, rxq);
2907 ixgbe_dev_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
2909 #define IXGBE_RXQ_SCAN_INTERVAL 4
2910 volatile union ixgbe_adv_rx_desc *rxdp;
2911 struct ixgbe_rx_queue *rxq;
2914 if (rx_queue_id >= dev->data->nb_rx_queues) {
2915 PMD_RX_LOG(ERR, "Invalid RX queue id=%d", rx_queue_id);
2919 rxq = dev->data->rx_queues[rx_queue_id];
2920 rxdp = &(rxq->rx_ring[rxq->rx_tail]);
2922 while ((desc < rxq->nb_rx_desc) &&
2923 (rxdp->wb.upper.status_error &
2924 rte_cpu_to_le_32(IXGBE_RXDADV_STAT_DD))) {
2925 desc += IXGBE_RXQ_SCAN_INTERVAL;
2926 rxdp += IXGBE_RXQ_SCAN_INTERVAL;
2927 if (rxq->rx_tail + desc >= rxq->nb_rx_desc)
2928 rxdp = &(rxq->rx_ring[rxq->rx_tail +
2929 desc - rxq->nb_rx_desc]);
2936 ixgbe_dev_rx_descriptor_done(void *rx_queue, uint16_t offset)
2938 volatile union ixgbe_adv_rx_desc *rxdp;
2939 struct ixgbe_rx_queue *rxq = rx_queue;
2942 if (unlikely(offset >= rxq->nb_rx_desc))
2944 desc = rxq->rx_tail + offset;
2945 if (desc >= rxq->nb_rx_desc)
2946 desc -= rxq->nb_rx_desc;
2948 rxdp = &rxq->rx_ring[desc];
2949 return !!(rxdp->wb.upper.status_error &
2950 rte_cpu_to_le_32(IXGBE_RXDADV_STAT_DD));
2953 void __attribute__((cold))
2954 ixgbe_dev_clear_queues(struct rte_eth_dev *dev)
2957 struct ixgbe_adapter *adapter =
2958 (struct ixgbe_adapter *)dev->data->dev_private;
2960 PMD_INIT_FUNC_TRACE();
2962 for (i = 0; i < dev->data->nb_tx_queues; i++) {
2963 struct ixgbe_tx_queue *txq = dev->data->tx_queues[i];
2966 txq->ops->release_mbufs(txq);
2967 txq->ops->reset(txq);
2971 for (i = 0; i < dev->data->nb_rx_queues; i++) {
2972 struct ixgbe_rx_queue *rxq = dev->data->rx_queues[i];
2975 ixgbe_rx_queue_release_mbufs(rxq);
2976 ixgbe_reset_rx_queue(adapter, rxq);
2982 ixgbe_dev_free_queues(struct rte_eth_dev *dev)
2986 PMD_INIT_FUNC_TRACE();
2988 for (i = 0; i < dev->data->nb_rx_queues; i++) {
2989 ixgbe_dev_rx_queue_release(dev->data->rx_queues[i]);
2990 dev->data->rx_queues[i] = NULL;
2992 dev->data->nb_rx_queues = 0;
2994 for (i = 0; i < dev->data->nb_tx_queues; i++) {
2995 ixgbe_dev_tx_queue_release(dev->data->tx_queues[i]);
2996 dev->data->tx_queues[i] = NULL;
2998 dev->data->nb_tx_queues = 0;
3001 /*********************************************************************
3003 * Device RX/TX init functions
3005 **********************************************************************/
3008 * Receive Side Scaling (RSS)
3009 * See section 7.1.2.8 in the following document:
3010 * "Intel 82599 10 GbE Controller Datasheet" - Revision 2.1 October 2009
3013 * The source and destination IP addresses of the IP header and the source
3014 * and destination ports of TCP/UDP headers, if any, of received packets are
3015 * hashed against a configurable random key to compute a 32-bit RSS hash result.
3016 * The seven (7) LSBs of the 32-bit hash result are used as an index into a
3017 * 128-entry redirection table (RETA). Each entry of the RETA provides a 3-bit
3018 * RSS output index which is used as the RX queue index where to store the
3020 * The following output is supplied in the RX write-back descriptor:
3021 * - 32-bit result of the Microsoft RSS hash function,
3022 * - 4-bit RSS type field.
3026 * RSS random key supplied in section 7.1.2.8.3 of the Intel 82599 datasheet.
3027 * Used as the default key.
3029 static uint8_t rss_intel_key[40] = {
3030 0x6D, 0x5A, 0x56, 0xDA, 0x25, 0x5B, 0x0E, 0xC2,
3031 0x41, 0x67, 0x25, 0x3D, 0x43, 0xA3, 0x8F, 0xB0,
3032 0xD0, 0xCA, 0x2B, 0xCB, 0xAE, 0x7B, 0x30, 0xB4,
3033 0x77, 0xCB, 0x2D, 0xA3, 0x80, 0x30, 0xF2, 0x0C,
3034 0x6A, 0x42, 0xB7, 0x3B, 0xBE, 0xAC, 0x01, 0xFA,
3038 ixgbe_rss_disable(struct rte_eth_dev *dev)
3040 struct ixgbe_hw *hw;
3044 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
3045 mrqc_reg = ixgbe_mrqc_reg_get(hw->mac.type);
3046 mrqc = IXGBE_READ_REG(hw, mrqc_reg);
3047 mrqc &= ~IXGBE_MRQC_RSSEN;
3048 IXGBE_WRITE_REG(hw, mrqc_reg, mrqc);
3052 ixgbe_hw_rss_hash_set(struct ixgbe_hw *hw, struct rte_eth_rss_conf *rss_conf)
3062 mrqc_reg = ixgbe_mrqc_reg_get(hw->mac.type);
3063 rssrk_reg = ixgbe_rssrk_reg_get(hw->mac.type, 0);
3065 hash_key = rss_conf->rss_key;
3066 if (hash_key != NULL) {
3067 /* Fill in RSS hash key */
3068 for (i = 0; i < 10; i++) {
3069 rss_key = hash_key[(i * 4)];
3070 rss_key |= hash_key[(i * 4) + 1] << 8;
3071 rss_key |= hash_key[(i * 4) + 2] << 16;
3072 rss_key |= hash_key[(i * 4) + 3] << 24;
3073 IXGBE_WRITE_REG_ARRAY(hw, rssrk_reg, i, rss_key);
3077 /* Set configured hashing protocols in MRQC register */
3078 rss_hf = rss_conf->rss_hf;
3079 mrqc = IXGBE_MRQC_RSSEN; /* Enable RSS */
3080 if (rss_hf & ETH_RSS_IPV4)
3081 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4;
3082 if (rss_hf & ETH_RSS_NONFRAG_IPV4_TCP)
3083 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_TCP;
3084 if (rss_hf & ETH_RSS_IPV6)
3085 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6;
3086 if (rss_hf & ETH_RSS_IPV6_EX)
3087 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_EX;
3088 if (rss_hf & ETH_RSS_NONFRAG_IPV6_TCP)
3089 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_TCP;
3090 if (rss_hf & ETH_RSS_IPV6_TCP_EX)
3091 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_EX_TCP;
3092 if (rss_hf & ETH_RSS_NONFRAG_IPV4_UDP)
3093 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_UDP;
3094 if (rss_hf & ETH_RSS_NONFRAG_IPV6_UDP)
3095 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_UDP;
3096 if (rss_hf & ETH_RSS_IPV6_UDP_EX)
3097 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_EX_UDP;
3098 IXGBE_WRITE_REG(hw, mrqc_reg, mrqc);
3102 ixgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
3103 struct rte_eth_rss_conf *rss_conf)
3105 struct ixgbe_hw *hw;
3110 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
3112 if (!ixgbe_rss_update_sp(hw->mac.type)) {
3113 PMD_DRV_LOG(ERR, "RSS hash update is not supported on this "
3117 mrqc_reg = ixgbe_mrqc_reg_get(hw->mac.type);
3120 * Excerpt from section 7.1.2.8 Receive-Side Scaling (RSS):
3121 * "RSS enabling cannot be done dynamically while it must be
3122 * preceded by a software reset"
3123 * Before changing anything, first check that the update RSS operation
3124 * does not attempt to disable RSS, if RSS was enabled at
3125 * initialization time, or does not attempt to enable RSS, if RSS was
3126 * disabled at initialization time.
3128 rss_hf = rss_conf->rss_hf & IXGBE_RSS_OFFLOAD_ALL;
3129 mrqc = IXGBE_READ_REG(hw, mrqc_reg);
3130 if (!(mrqc & IXGBE_MRQC_RSSEN)) { /* RSS disabled */
3131 if (rss_hf != 0) /* Enable RSS */
3133 return 0; /* Nothing to do */
3136 if (rss_hf == 0) /* Disable RSS */
3138 ixgbe_hw_rss_hash_set(hw, rss_conf);
3143 ixgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
3144 struct rte_eth_rss_conf *rss_conf)
3146 struct ixgbe_hw *hw;
3155 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
3156 mrqc_reg = ixgbe_mrqc_reg_get(hw->mac.type);
3157 rssrk_reg = ixgbe_rssrk_reg_get(hw->mac.type, 0);
3158 hash_key = rss_conf->rss_key;
3159 if (hash_key != NULL) {
3160 /* Return RSS hash key */
3161 for (i = 0; i < 10; i++) {
3162 rss_key = IXGBE_READ_REG_ARRAY(hw, rssrk_reg, i);
3163 hash_key[(i * 4)] = rss_key & 0x000000FF;
3164 hash_key[(i * 4) + 1] = (rss_key >> 8) & 0x000000FF;
3165 hash_key[(i * 4) + 2] = (rss_key >> 16) & 0x000000FF;
3166 hash_key[(i * 4) + 3] = (rss_key >> 24) & 0x000000FF;
3170 /* Get RSS functions configured in MRQC register */
3171 mrqc = IXGBE_READ_REG(hw, mrqc_reg);
3172 if ((mrqc & IXGBE_MRQC_RSSEN) == 0) { /* RSS is disabled */
3173 rss_conf->rss_hf = 0;
3177 if (mrqc & IXGBE_MRQC_RSS_FIELD_IPV4)
3178 rss_hf |= ETH_RSS_IPV4;
3179 if (mrqc & IXGBE_MRQC_RSS_FIELD_IPV4_TCP)
3180 rss_hf |= ETH_RSS_NONFRAG_IPV4_TCP;
3181 if (mrqc & IXGBE_MRQC_RSS_FIELD_IPV6)
3182 rss_hf |= ETH_RSS_IPV6;
3183 if (mrqc & IXGBE_MRQC_RSS_FIELD_IPV6_EX)
3184 rss_hf |= ETH_RSS_IPV6_EX;
3185 if (mrqc & IXGBE_MRQC_RSS_FIELD_IPV6_TCP)
3186 rss_hf |= ETH_RSS_NONFRAG_IPV6_TCP;
3187 if (mrqc & IXGBE_MRQC_RSS_FIELD_IPV6_EX_TCP)
3188 rss_hf |= ETH_RSS_IPV6_TCP_EX;
3189 if (mrqc & IXGBE_MRQC_RSS_FIELD_IPV4_UDP)
3190 rss_hf |= ETH_RSS_NONFRAG_IPV4_UDP;
3191 if (mrqc & IXGBE_MRQC_RSS_FIELD_IPV6_UDP)
3192 rss_hf |= ETH_RSS_NONFRAG_IPV6_UDP;
3193 if (mrqc & IXGBE_MRQC_RSS_FIELD_IPV6_EX_UDP)
3194 rss_hf |= ETH_RSS_IPV6_UDP_EX;
3195 rss_conf->rss_hf = rss_hf;
3200 ixgbe_rss_configure(struct rte_eth_dev *dev)
3202 struct rte_eth_rss_conf rss_conf;
3203 struct ixgbe_hw *hw;
3207 uint16_t sp_reta_size;
3210 PMD_INIT_FUNC_TRACE();
3211 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
3213 sp_reta_size = ixgbe_reta_size_get(hw->mac.type);
3216 * Fill in redirection table
3217 * The byte-swap is needed because NIC registers are in
3218 * little-endian order.
3221 for (i = 0, j = 0; i < sp_reta_size; i++, j++) {
3222 reta_reg = ixgbe_reta_reg_get(hw->mac.type, i);
3224 if (j == dev->data->nb_rx_queues)
3226 reta = (reta << 8) | j;
3228 IXGBE_WRITE_REG(hw, reta_reg,
3233 * Configure the RSS key and the RSS protocols used to compute
3234 * the RSS hash of input packets.
3236 rss_conf = dev->data->dev_conf.rx_adv_conf.rss_conf;
3237 if ((rss_conf.rss_hf & IXGBE_RSS_OFFLOAD_ALL) == 0) {
3238 ixgbe_rss_disable(dev);
3241 if (rss_conf.rss_key == NULL)
3242 rss_conf.rss_key = rss_intel_key; /* Default hash key */
3243 ixgbe_hw_rss_hash_set(hw, &rss_conf);
3246 #define NUM_VFTA_REGISTERS 128
3247 #define NIC_RX_BUFFER_SIZE 0x200
3248 #define X550_RX_BUFFER_SIZE 0x180
3251 ixgbe_vmdq_dcb_configure(struct rte_eth_dev *dev)
3253 struct rte_eth_vmdq_dcb_conf *cfg;
3254 struct ixgbe_hw *hw;
3255 enum rte_eth_nb_pools num_pools;
3256 uint32_t mrqc, vt_ctl, queue_mapping, vlanctrl;
3258 uint8_t nb_tcs; /* number of traffic classes */
3261 PMD_INIT_FUNC_TRACE();
3262 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
3263 cfg = &dev->data->dev_conf.rx_adv_conf.vmdq_dcb_conf;
3264 num_pools = cfg->nb_queue_pools;
3265 /* Check we have a valid number of pools */
3266 if (num_pools != ETH_16_POOLS && num_pools != ETH_32_POOLS) {
3267 ixgbe_rss_disable(dev);
3270 /* 16 pools -> 8 traffic classes, 32 pools -> 4 traffic classes */
3271 nb_tcs = (uint8_t)(ETH_VMDQ_DCB_NUM_QUEUES / (int)num_pools);
3275 * split rx buffer up into sections, each for 1 traffic class
3277 switch (hw->mac.type) {
3278 case ixgbe_mac_X550:
3279 case ixgbe_mac_X550EM_x:
3280 case ixgbe_mac_X550EM_a:
3281 pbsize = (uint16_t)(X550_RX_BUFFER_SIZE / nb_tcs);
3284 pbsize = (uint16_t)(NIC_RX_BUFFER_SIZE / nb_tcs);
3287 for (i = 0; i < nb_tcs; i++) {
3288 uint32_t rxpbsize = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(i));
3290 rxpbsize &= (~(0x3FF << IXGBE_RXPBSIZE_SHIFT));
3291 /* clear 10 bits. */
3292 rxpbsize |= (pbsize << IXGBE_RXPBSIZE_SHIFT); /* set value */
3293 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpbsize);
3295 /* zero alloc all unused TCs */
3296 for (i = nb_tcs; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
3297 uint32_t rxpbsize = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(i));
3299 rxpbsize &= (~(0x3FF << IXGBE_RXPBSIZE_SHIFT));
3300 /* clear 10 bits. */
3301 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpbsize);
3304 /* MRQC: enable vmdq and dcb */
3305 mrqc = (num_pools == ETH_16_POOLS) ?
3306 IXGBE_MRQC_VMDQRT8TCEN : IXGBE_MRQC_VMDQRT4TCEN;
3307 IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc);
3309 /* PFVTCTL: turn on virtualisation and set the default pool */
3310 vt_ctl = IXGBE_VT_CTL_VT_ENABLE | IXGBE_VT_CTL_REPLEN;
3311 if (cfg->enable_default_pool) {
3312 vt_ctl |= (cfg->default_pool << IXGBE_VT_CTL_POOL_SHIFT);
3314 vt_ctl |= IXGBE_VT_CTL_DIS_DEFPL;
3317 IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vt_ctl);
3319 /* RTRUP2TC: mapping user priorities to traffic classes (TCs) */
3321 for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++)
3323 * mapping is done with 3 bits per priority,
3324 * so shift by i*3 each time
3326 queue_mapping |= ((cfg->dcb_tc[i] & 0x07) << (i * 3));
3328 IXGBE_WRITE_REG(hw, IXGBE_RTRUP2TC, queue_mapping);
3330 /* RTRPCS: DCB related */
3331 IXGBE_WRITE_REG(hw, IXGBE_RTRPCS, IXGBE_RMCS_RRM);
3333 /* VLNCTRL: enable vlan filtering and allow all vlan tags through */
3334 vlanctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
3335 vlanctrl |= IXGBE_VLNCTRL_VFE; /* enable vlan filters */
3336 IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlanctrl);
3338 /* VFTA - enable all vlan filters */
3339 for (i = 0; i < NUM_VFTA_REGISTERS; i++) {
3340 IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), 0xFFFFFFFF);
3343 /* VFRE: pool enabling for receive - 16 or 32 */
3344 IXGBE_WRITE_REG(hw, IXGBE_VFRE(0),
3345 num_pools == ETH_16_POOLS ? 0xFFFF : 0xFFFFFFFF);
3348 * MPSAR - allow pools to read specific mac addresses
3349 * In this case, all pools should be able to read from mac addr 0
3351 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(0), 0xFFFFFFFF);
3352 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(0), 0xFFFFFFFF);
3354 /* PFVLVF, PFVLVFB: set up filters for vlan tags as configured */
3355 for (i = 0; i < cfg->nb_pool_maps; i++) {
3356 /* set vlan id in VF register and set the valid bit */
3357 IXGBE_WRITE_REG(hw, IXGBE_VLVF(i), (IXGBE_VLVF_VIEN |
3358 (cfg->pool_map[i].vlan_id & 0xFFF)));
3360 * Put the allowed pools in VFB reg. As we only have 16 or 32
3361 * pools, we only need to use the first half of the register
3364 IXGBE_WRITE_REG(hw, IXGBE_VLVFB(i*2), cfg->pool_map[i].pools);
3369 * ixgbe_dcb_config_tx_hw_config - Configure general DCB TX parameters
3370 * @dev: pointer to eth_dev structure
3371 * @dcb_config: pointer to ixgbe_dcb_config structure
3374 ixgbe_dcb_tx_hw_config(struct rte_eth_dev *dev,
3375 struct ixgbe_dcb_config *dcb_config)
3379 struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
3381 PMD_INIT_FUNC_TRACE();
3382 if (hw->mac.type != ixgbe_mac_82598EB) {
3383 /* Disable the Tx desc arbiter so that MTQC can be changed */
3384 reg = IXGBE_READ_REG(hw, IXGBE_RTTDCS);
3385 reg |= IXGBE_RTTDCS_ARBDIS;
3386 IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, reg);
3388 /* Enable DCB for Tx with 8 TCs */
3389 if (dcb_config->num_tcs.pg_tcs == 8) {
3390 reg = IXGBE_MTQC_RT_ENA | IXGBE_MTQC_8TC_8TQ;
3392 reg = IXGBE_MTQC_RT_ENA | IXGBE_MTQC_4TC_4TQ;
3394 if (dcb_config->vt_mode)
3395 reg |= IXGBE_MTQC_VT_ENA;
3396 IXGBE_WRITE_REG(hw, IXGBE_MTQC, reg);
3398 if (RTE_ETH_DEV_SRIOV(dev).active == 0) {
3399 /* Disable drop for all queues in VMDQ mode*/
3400 for (q = 0; q < 128; q++)
3401 IXGBE_WRITE_REG(hw, IXGBE_QDE,
3402 (IXGBE_QDE_WRITE | (q << IXGBE_QDE_IDX_SHIFT)));
3404 /* Enable drop for all queues in SRIOV mode */
3405 for (q = 0; q < 128; q++)
3406 IXGBE_WRITE_REG(hw, IXGBE_QDE,
3407 (IXGBE_QDE_WRITE | (q << IXGBE_QDE_IDX_SHIFT) | IXGBE_QDE_ENABLE));
3410 /* Enable the Tx desc arbiter */
3411 reg = IXGBE_READ_REG(hw, IXGBE_RTTDCS);
3412 reg &= ~IXGBE_RTTDCS_ARBDIS;
3413 IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, reg);
3415 /* Enable Security TX Buffer IFG for DCB */
3416 reg = IXGBE_READ_REG(hw, IXGBE_SECTXMINIFG);
3417 reg |= IXGBE_SECTX_DCB;
3418 IXGBE_WRITE_REG(hw, IXGBE_SECTXMINIFG, reg);
3423 * ixgbe_vmdq_dcb_hw_tx_config - Configure general VMDQ+DCB TX parameters
3424 * @dev: pointer to rte_eth_dev structure
3425 * @dcb_config: pointer to ixgbe_dcb_config structure
3428 ixgbe_vmdq_dcb_hw_tx_config(struct rte_eth_dev *dev,
3429 struct ixgbe_dcb_config *dcb_config)
3431 struct rte_eth_vmdq_dcb_tx_conf *vmdq_tx_conf =
3432 &dev->data->dev_conf.tx_adv_conf.vmdq_dcb_tx_conf;
3433 struct ixgbe_hw *hw =
3434 IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
3436 PMD_INIT_FUNC_TRACE();
3437 if (hw->mac.type != ixgbe_mac_82598EB)
3438 /*PF VF Transmit Enable*/
3439 IXGBE_WRITE_REG(hw, IXGBE_VFTE(0),
3440 vmdq_tx_conf->nb_queue_pools == ETH_16_POOLS ? 0xFFFF : 0xFFFFFFFF);
3442 /*Configure general DCB TX parameters*/
3443 ixgbe_dcb_tx_hw_config(dev, dcb_config);
3447 ixgbe_vmdq_dcb_rx_config(struct rte_eth_dev *dev,
3448 struct ixgbe_dcb_config *dcb_config)
3450 struct rte_eth_vmdq_dcb_conf *vmdq_rx_conf =
3451 &dev->data->dev_conf.rx_adv_conf.vmdq_dcb_conf;
3452 struct ixgbe_dcb_tc_config *tc;
3455 /* convert rte_eth_conf.rx_adv_conf to struct ixgbe_dcb_config */
3456 if (vmdq_rx_conf->nb_queue_pools == ETH_16_POOLS) {
3457 dcb_config->num_tcs.pg_tcs = ETH_8_TCS;
3458 dcb_config->num_tcs.pfc_tcs = ETH_8_TCS;
3460 dcb_config->num_tcs.pg_tcs = ETH_4_TCS;
3461 dcb_config->num_tcs.pfc_tcs = ETH_4_TCS;
3463 /* User Priority to Traffic Class mapping */
3464 for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
3465 j = vmdq_rx_conf->dcb_tc[i];
3466 tc = &dcb_config->tc_config[j];
3467 tc->path[IXGBE_DCB_RX_CONFIG].up_to_tc_bitmap =
3473 ixgbe_dcb_vt_tx_config(struct rte_eth_dev *dev,
3474 struct ixgbe_dcb_config *dcb_config)
3476 struct rte_eth_vmdq_dcb_tx_conf *vmdq_tx_conf =
3477 &dev->data->dev_conf.tx_adv_conf.vmdq_dcb_tx_conf;
3478 struct ixgbe_dcb_tc_config *tc;
3481 /* convert rte_eth_conf.rx_adv_conf to struct ixgbe_dcb_config */
3482 if (vmdq_tx_conf->nb_queue_pools == ETH_16_POOLS) {
3483 dcb_config->num_tcs.pg_tcs = ETH_8_TCS;
3484 dcb_config->num_tcs.pfc_tcs = ETH_8_TCS;
3486 dcb_config->num_tcs.pg_tcs = ETH_4_TCS;
3487 dcb_config->num_tcs.pfc_tcs = ETH_4_TCS;
3490 /* User Priority to Traffic Class mapping */
3491 for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
3492 j = vmdq_tx_conf->dcb_tc[i];
3493 tc = &dcb_config->tc_config[j];
3494 tc->path[IXGBE_DCB_TX_CONFIG].up_to_tc_bitmap =
3500 ixgbe_dcb_rx_config(struct rte_eth_dev *dev,
3501 struct ixgbe_dcb_config *dcb_config)
3503 struct rte_eth_dcb_rx_conf *rx_conf =
3504 &dev->data->dev_conf.rx_adv_conf.dcb_rx_conf;
3505 struct ixgbe_dcb_tc_config *tc;
3508 dcb_config->num_tcs.pg_tcs = (uint8_t)rx_conf->nb_tcs;
3509 dcb_config->num_tcs.pfc_tcs = (uint8_t)rx_conf->nb_tcs;
3511 /* User Priority to Traffic Class mapping */
3512 for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
3513 j = rx_conf->dcb_tc[i];
3514 tc = &dcb_config->tc_config[j];
3515 tc->path[IXGBE_DCB_RX_CONFIG].up_to_tc_bitmap =
3521 ixgbe_dcb_tx_config(struct rte_eth_dev *dev,
3522 struct ixgbe_dcb_config *dcb_config)
3524 struct rte_eth_dcb_tx_conf *tx_conf =
3525 &dev->data->dev_conf.tx_adv_conf.dcb_tx_conf;
3526 struct ixgbe_dcb_tc_config *tc;
3529 dcb_config->num_tcs.pg_tcs = (uint8_t)tx_conf->nb_tcs;
3530 dcb_config->num_tcs.pfc_tcs = (uint8_t)tx_conf->nb_tcs;
3532 /* User Priority to Traffic Class mapping */
3533 for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
3534 j = tx_conf->dcb_tc[i];
3535 tc = &dcb_config->tc_config[j];
3536 tc->path[IXGBE_DCB_TX_CONFIG].up_to_tc_bitmap =
3542 * ixgbe_dcb_rx_hw_config - Configure general DCB RX HW parameters
3543 * @hw: pointer to hardware structure
3544 * @dcb_config: pointer to ixgbe_dcb_config structure
3547 ixgbe_dcb_rx_hw_config(struct ixgbe_hw *hw,
3548 struct ixgbe_dcb_config *dcb_config)
3554 PMD_INIT_FUNC_TRACE();
3556 * Disable the arbiter before changing parameters
3557 * (always enable recycle mode; WSP)
3559 reg = IXGBE_RTRPCS_RRM | IXGBE_RTRPCS_RAC | IXGBE_RTRPCS_ARBDIS;
3560 IXGBE_WRITE_REG(hw, IXGBE_RTRPCS, reg);
3562 if (hw->mac.type != ixgbe_mac_82598EB) {
3563 reg = IXGBE_READ_REG(hw, IXGBE_MRQC);
3564 if (dcb_config->num_tcs.pg_tcs == 4) {
3565 if (dcb_config->vt_mode)
3566 reg = (reg & ~IXGBE_MRQC_MRQE_MASK) |
3567 IXGBE_MRQC_VMDQRT4TCEN;
3569 /* no matter the mode is DCB or DCB_RSS, just
3570 * set the MRQE to RSSXTCEN. RSS is controlled
3573 IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, 0);
3574 reg = (reg & ~IXGBE_MRQC_MRQE_MASK) |
3575 IXGBE_MRQC_RTRSS4TCEN;
3578 if (dcb_config->num_tcs.pg_tcs == 8) {
3579 if (dcb_config->vt_mode)
3580 reg = (reg & ~IXGBE_MRQC_MRQE_MASK) |
3581 IXGBE_MRQC_VMDQRT8TCEN;
3583 IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, 0);
3584 reg = (reg & ~IXGBE_MRQC_MRQE_MASK) |
3585 IXGBE_MRQC_RTRSS8TCEN;
3589 IXGBE_WRITE_REG(hw, IXGBE_MRQC, reg);
3592 /* VLNCTRL: enable vlan filtering and allow all vlan tags through */
3593 vlanctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
3594 vlanctrl |= IXGBE_VLNCTRL_VFE; /* enable vlan filters */
3595 IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlanctrl);
3597 /* VFTA - enable all vlan filters */
3598 for (i = 0; i < NUM_VFTA_REGISTERS; i++) {
3599 IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), 0xFFFFFFFF);
3603 * Configure Rx packet plane (recycle mode; WSP) and
3606 reg = IXGBE_RTRPCS_RRM | IXGBE_RTRPCS_RAC;
3607 IXGBE_WRITE_REG(hw, IXGBE_RTRPCS, reg);
3611 ixgbe_dcb_hw_arbite_rx_config(struct ixgbe_hw *hw, uint16_t *refill,
3612 uint16_t *max, uint8_t *bwg_id, uint8_t *tsa, uint8_t *map)
3614 switch (hw->mac.type) {
3615 case ixgbe_mac_82598EB:
3616 ixgbe_dcb_config_rx_arbiter_82598(hw, refill, max, tsa);
3618 case ixgbe_mac_82599EB:
3619 case ixgbe_mac_X540:
3620 case ixgbe_mac_X550:
3621 case ixgbe_mac_X550EM_x:
3622 case ixgbe_mac_X550EM_a:
3623 ixgbe_dcb_config_rx_arbiter_82599(hw, refill, max, bwg_id,
3632 ixgbe_dcb_hw_arbite_tx_config(struct ixgbe_hw *hw, uint16_t *refill, uint16_t *max,
3633 uint8_t *bwg_id, uint8_t *tsa, uint8_t *map)
3635 switch (hw->mac.type) {
3636 case ixgbe_mac_82598EB:
3637 ixgbe_dcb_config_tx_desc_arbiter_82598(hw, refill, max, bwg_id, tsa);
3638 ixgbe_dcb_config_tx_data_arbiter_82598(hw, refill, max, bwg_id, tsa);
3640 case ixgbe_mac_82599EB:
3641 case ixgbe_mac_X540:
3642 case ixgbe_mac_X550:
3643 case ixgbe_mac_X550EM_x:
3644 case ixgbe_mac_X550EM_a:
3645 ixgbe_dcb_config_tx_desc_arbiter_82599(hw, refill, max, bwg_id, tsa);
3646 ixgbe_dcb_config_tx_data_arbiter_82599(hw, refill, max, bwg_id, tsa, map);
3653 #define DCB_RX_CONFIG 1
3654 #define DCB_TX_CONFIG 1
3655 #define DCB_TX_PB 1024
3657 * ixgbe_dcb_hw_configure - Enable DCB and configure
3658 * general DCB in VT mode and non-VT mode parameters
3659 * @dev: pointer to rte_eth_dev structure
3660 * @dcb_config: pointer to ixgbe_dcb_config structure
3663 ixgbe_dcb_hw_configure(struct rte_eth_dev *dev,
3664 struct ixgbe_dcb_config *dcb_config)
3667 uint8_t i, pfc_en, nb_tcs;
3668 uint16_t pbsize, rx_buffer_size;
3669 uint8_t config_dcb_rx = 0;
3670 uint8_t config_dcb_tx = 0;
3671 uint8_t tsa[IXGBE_DCB_MAX_TRAFFIC_CLASS] = {0};
3672 uint8_t bwgid[IXGBE_DCB_MAX_TRAFFIC_CLASS] = {0};
3673 uint16_t refill[IXGBE_DCB_MAX_TRAFFIC_CLASS] = {0};
3674 uint16_t max[IXGBE_DCB_MAX_TRAFFIC_CLASS] = {0};
3675 uint8_t map[IXGBE_DCB_MAX_TRAFFIC_CLASS] = {0};
3676 struct ixgbe_dcb_tc_config *tc;
3677 uint32_t max_frame = dev->data->mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
3678 struct ixgbe_hw *hw =
3679 IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
3681 switch (dev->data->dev_conf.rxmode.mq_mode) {
3682 case ETH_MQ_RX_VMDQ_DCB:
3683 dcb_config->vt_mode = true;
3684 if (hw->mac.type != ixgbe_mac_82598EB) {
3685 config_dcb_rx = DCB_RX_CONFIG;
3687 *get dcb and VT rx configuration parameters
3690 ixgbe_vmdq_dcb_rx_config(dev, dcb_config);
3691 /*Configure general VMDQ and DCB RX parameters*/
3692 ixgbe_vmdq_dcb_configure(dev);
3696 case ETH_MQ_RX_DCB_RSS:
3697 dcb_config->vt_mode = false;
3698 config_dcb_rx = DCB_RX_CONFIG;
3699 /* Get dcb TX configuration parameters from rte_eth_conf */
3700 ixgbe_dcb_rx_config(dev, dcb_config);
3701 /*Configure general DCB RX parameters*/
3702 ixgbe_dcb_rx_hw_config(hw, dcb_config);
3705 PMD_INIT_LOG(ERR, "Incorrect DCB RX mode configuration");
3708 switch (dev->data->dev_conf.txmode.mq_mode) {
3709 case ETH_MQ_TX_VMDQ_DCB:
3710 dcb_config->vt_mode = true;
3711 config_dcb_tx = DCB_TX_CONFIG;
3712 /* get DCB and VT TX configuration parameters
3715 ixgbe_dcb_vt_tx_config(dev, dcb_config);
3716 /*Configure general VMDQ and DCB TX parameters*/
3717 ixgbe_vmdq_dcb_hw_tx_config(dev, dcb_config);
3721 dcb_config->vt_mode = false;
3722 config_dcb_tx = DCB_TX_CONFIG;
3723 /*get DCB TX configuration parameters from rte_eth_conf*/
3724 ixgbe_dcb_tx_config(dev, dcb_config);
3725 /*Configure general DCB TX parameters*/
3726 ixgbe_dcb_tx_hw_config(dev, dcb_config);
3729 PMD_INIT_LOG(ERR, "Incorrect DCB TX mode configuration");
3733 nb_tcs = dcb_config->num_tcs.pfc_tcs;
3735 ixgbe_dcb_unpack_map_cee(dcb_config, IXGBE_DCB_RX_CONFIG, map);
3736 if (nb_tcs == ETH_4_TCS) {
3737 /* Avoid un-configured priority mapping to TC0 */
3739 uint8_t mask = 0xFF;
3741 for (i = 0; i < ETH_DCB_NUM_USER_PRIORITIES - 4; i++)
3742 mask = (uint8_t)(mask & (~(1 << map[i])));
3743 for (i = 0; mask && (i < IXGBE_DCB_MAX_TRAFFIC_CLASS); i++) {
3744 if ((mask & 0x1) && (j < ETH_DCB_NUM_USER_PRIORITIES))
3748 /* Re-configure 4 TCs BW */
3749 for (i = 0; i < nb_tcs; i++) {
3750 tc = &dcb_config->tc_config[i];
3751 tc->path[IXGBE_DCB_TX_CONFIG].bwg_percent =
3752 (uint8_t)(100 / nb_tcs);
3753 tc->path[IXGBE_DCB_RX_CONFIG].bwg_percent =
3754 (uint8_t)(100 / nb_tcs);
3756 for (; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
3757 tc = &dcb_config->tc_config[i];
3758 tc->path[IXGBE_DCB_TX_CONFIG].bwg_percent = 0;
3759 tc->path[IXGBE_DCB_RX_CONFIG].bwg_percent = 0;
3763 switch (hw->mac.type) {
3764 case ixgbe_mac_X550:
3765 case ixgbe_mac_X550EM_x:
3766 case ixgbe_mac_X550EM_a:
3767 rx_buffer_size = X550_RX_BUFFER_SIZE;
3770 rx_buffer_size = NIC_RX_BUFFER_SIZE;
3774 if (config_dcb_rx) {
3775 /* Set RX buffer size */
3776 pbsize = (uint16_t)(rx_buffer_size / nb_tcs);
3777 uint32_t rxpbsize = pbsize << IXGBE_RXPBSIZE_SHIFT;
3779 for (i = 0; i < nb_tcs; i++) {
3780 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpbsize);
3782 /* zero alloc all unused TCs */
3783 for (; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
3784 IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), 0);
3787 if (config_dcb_tx) {
3788 /* Only support an equally distributed
3789 * Tx packet buffer strategy.
3791 uint32_t txpktsize = IXGBE_TXPBSIZE_MAX / nb_tcs;
3792 uint32_t txpbthresh = (txpktsize / DCB_TX_PB) - IXGBE_TXPKT_SIZE_MAX;
3794 for (i = 0; i < nb_tcs; i++) {
3795 IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), txpktsize);
3796 IXGBE_WRITE_REG(hw, IXGBE_TXPBTHRESH(i), txpbthresh);
3798 /* Clear unused TCs, if any, to zero buffer size*/
3799 for (; i < ETH_DCB_NUM_USER_PRIORITIES; i++) {
3800 IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), 0);
3801 IXGBE_WRITE_REG(hw, IXGBE_TXPBTHRESH(i), 0);
3805 /*Calculates traffic class credits*/
3806 ixgbe_dcb_calculate_tc_credits_cee(hw, dcb_config, max_frame,
3807 IXGBE_DCB_TX_CONFIG);
3808 ixgbe_dcb_calculate_tc_credits_cee(hw, dcb_config, max_frame,
3809 IXGBE_DCB_RX_CONFIG);
3811 if (config_dcb_rx) {
3812 /* Unpack CEE standard containers */
3813 ixgbe_dcb_unpack_refill_cee(dcb_config, IXGBE_DCB_RX_CONFIG, refill);
3814 ixgbe_dcb_unpack_max_cee(dcb_config, max);
3815 ixgbe_dcb_unpack_bwgid_cee(dcb_config, IXGBE_DCB_RX_CONFIG, bwgid);
3816 ixgbe_dcb_unpack_tsa_cee(dcb_config, IXGBE_DCB_RX_CONFIG, tsa);
3817 /* Configure PG(ETS) RX */
3818 ixgbe_dcb_hw_arbite_rx_config(hw, refill, max, bwgid, tsa, map);
3821 if (config_dcb_tx) {
3822 /* Unpack CEE standard containers */
3823 ixgbe_dcb_unpack_refill_cee(dcb_config, IXGBE_DCB_TX_CONFIG, refill);
3824 ixgbe_dcb_unpack_max_cee(dcb_config, max);
3825 ixgbe_dcb_unpack_bwgid_cee(dcb_config, IXGBE_DCB_TX_CONFIG, bwgid);
3826 ixgbe_dcb_unpack_tsa_cee(dcb_config, IXGBE_DCB_TX_CONFIG, tsa);
3827 /* Configure PG(ETS) TX */
3828 ixgbe_dcb_hw_arbite_tx_config(hw, refill, max, bwgid, tsa, map);
3831 /*Configure queue statistics registers*/
3832 ixgbe_dcb_config_tc_stats_82599(hw, dcb_config);
3834 /* Check if the PFC is supported */
3835 if (dev->data->dev_conf.dcb_capability_en & ETH_DCB_PFC_SUPPORT) {
3836 pbsize = (uint16_t)(rx_buffer_size / nb_tcs);
3837 for (i = 0; i < nb_tcs; i++) {
3839 * If the TC count is 8,and the default high_water is 48,
3840 * the low_water is 16 as default.
3842 hw->fc.high_water[i] = (pbsize * 3) / 4;
3843 hw->fc.low_water[i] = pbsize / 4;
3844 /* Enable pfc for this TC */
3845 tc = &dcb_config->tc_config[i];
3846 tc->pfc = ixgbe_dcb_pfc_enabled;
3848 ixgbe_dcb_unpack_pfc_cee(dcb_config, map, &pfc_en);
3849 if (dcb_config->num_tcs.pfc_tcs == ETH_4_TCS)
3851 ret = ixgbe_dcb_config_pfc(hw, pfc_en, map);
3858 * ixgbe_configure_dcb - Configure DCB Hardware
3859 * @dev: pointer to rte_eth_dev
3861 void ixgbe_configure_dcb(struct rte_eth_dev *dev)
3863 struct ixgbe_dcb_config *dcb_cfg =
3864 IXGBE_DEV_PRIVATE_TO_DCB_CFG(dev->data->dev_private);
3865 struct rte_eth_conf *dev_conf = &(dev->data->dev_conf);
3867 PMD_INIT_FUNC_TRACE();
3869 /* check support mq_mode for DCB */
3870 if ((dev_conf->rxmode.mq_mode != ETH_MQ_RX_VMDQ_DCB) &&
3871 (dev_conf->rxmode.mq_mode != ETH_MQ_RX_DCB) &&
3872 (dev_conf->rxmode.mq_mode != ETH_MQ_RX_DCB_RSS))
3875 if (dev->data->nb_rx_queues > ETH_DCB_NUM_QUEUES)
3878 /** Configure DCB hardware **/
3879 ixgbe_dcb_hw_configure(dev, dcb_cfg);
3883 * VMDq only support for 10 GbE NIC.
3886 ixgbe_vmdq_rx_hw_configure(struct rte_eth_dev *dev)
3888 struct rte_eth_vmdq_rx_conf *cfg;
3889 struct ixgbe_hw *hw;
3890 enum rte_eth_nb_pools num_pools;
3891 uint32_t mrqc, vt_ctl, vlanctrl;
3895 PMD_INIT_FUNC_TRACE();
3896 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
3897 cfg = &dev->data->dev_conf.rx_adv_conf.vmdq_rx_conf;
3898 num_pools = cfg->nb_queue_pools;
3900 ixgbe_rss_disable(dev);
3902 /* MRQC: enable vmdq */
3903 mrqc = IXGBE_MRQC_VMDQEN;
3904 IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc);
3906 /* PFVTCTL: turn on virtualisation and set the default pool */
3907 vt_ctl = IXGBE_VT_CTL_VT_ENABLE | IXGBE_VT_CTL_REPLEN;
3908 if (cfg->enable_default_pool)
3909 vt_ctl |= (cfg->default_pool << IXGBE_VT_CTL_POOL_SHIFT);
3911 vt_ctl |= IXGBE_VT_CTL_DIS_DEFPL;
3913 IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vt_ctl);
3915 for (i = 0; i < (int)num_pools; i++) {
3916 vmolr = ixgbe_convert_vm_rx_mask_to_val(cfg->rx_mode, vmolr);
3917 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(i), vmolr);
3920 /* VLNCTRL: enable vlan filtering and allow all vlan tags through */
3921 vlanctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
3922 vlanctrl |= IXGBE_VLNCTRL_VFE; /* enable vlan filters */
3923 IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlanctrl);
3925 /* VFTA - enable all vlan filters */
3926 for (i = 0; i < NUM_VFTA_REGISTERS; i++)
3927 IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), UINT32_MAX);
3929 /* VFRE: pool enabling for receive - 64 */
3930 IXGBE_WRITE_REG(hw, IXGBE_VFRE(0), UINT32_MAX);
3931 if (num_pools == ETH_64_POOLS)
3932 IXGBE_WRITE_REG(hw, IXGBE_VFRE(1), UINT32_MAX);
3935 * MPSAR - allow pools to read specific mac addresses
3936 * In this case, all pools should be able to read from mac addr 0
3938 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(0), UINT32_MAX);
3939 IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(0), UINT32_MAX);
3941 /* PFVLVF, PFVLVFB: set up filters for vlan tags as configured */
3942 for (i = 0; i < cfg->nb_pool_maps; i++) {
3943 /* set vlan id in VF register and set the valid bit */
3944 IXGBE_WRITE_REG(hw, IXGBE_VLVF(i), (IXGBE_VLVF_VIEN |
3945 (cfg->pool_map[i].vlan_id & IXGBE_RXD_VLAN_ID_MASK)));
3947 * Put the allowed pools in VFB reg. As we only have 16 or 64
3948 * pools, we only need to use the first half of the register
3951 if (((cfg->pool_map[i].pools >> 32) & UINT32_MAX) == 0)
3952 IXGBE_WRITE_REG(hw, IXGBE_VLVFB(i * 2),
3953 (cfg->pool_map[i].pools & UINT32_MAX));
3955 IXGBE_WRITE_REG(hw, IXGBE_VLVFB((i * 2 + 1)),
3956 ((cfg->pool_map[i].pools >> 32) & UINT32_MAX));
3960 /* PFDMA Tx General Switch Control Enables VMDQ loopback */
3961 if (cfg->enable_loop_back) {
3962 IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
3963 for (i = 0; i < RTE_IXGBE_VMTXSW_REGISTER_COUNT; i++)
3964 IXGBE_WRITE_REG(hw, IXGBE_VMTXSW(i), UINT32_MAX);
3967 IXGBE_WRITE_FLUSH(hw);
3971 * ixgbe_dcb_config_tx_hw_config - Configure general VMDq TX parameters
3972 * @hw: pointer to hardware structure
3975 ixgbe_vmdq_tx_hw_configure(struct ixgbe_hw *hw)
3980 PMD_INIT_FUNC_TRACE();
3981 /*PF VF Transmit Enable*/
3982 IXGBE_WRITE_REG(hw, IXGBE_VFTE(0), UINT32_MAX);
3983 IXGBE_WRITE_REG(hw, IXGBE_VFTE(1), UINT32_MAX);
3985 /* Disable the Tx desc arbiter so that MTQC can be changed */
3986 reg = IXGBE_READ_REG(hw, IXGBE_RTTDCS);
3987 reg |= IXGBE_RTTDCS_ARBDIS;
3988 IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, reg);
3990 reg = IXGBE_MTQC_VT_ENA | IXGBE_MTQC_64VF;
3991 IXGBE_WRITE_REG(hw, IXGBE_MTQC, reg);
3993 /* Disable drop for all queues */
3994 for (q = 0; q < IXGBE_MAX_RX_QUEUE_NUM; q++)
3995 IXGBE_WRITE_REG(hw, IXGBE_QDE,
3996 (IXGBE_QDE_WRITE | (q << IXGBE_QDE_IDX_SHIFT)));
3998 /* Enable the Tx desc arbiter */
3999 reg = IXGBE_READ_REG(hw, IXGBE_RTTDCS);
4000 reg &= ~IXGBE_RTTDCS_ARBDIS;
4001 IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, reg);
4003 IXGBE_WRITE_FLUSH(hw);
4006 static int __attribute__((cold))
4007 ixgbe_alloc_rx_queue_mbufs(struct ixgbe_rx_queue *rxq)
4009 struct ixgbe_rx_entry *rxe = rxq->sw_ring;
4013 /* Initialize software ring entries */
4014 for (i = 0; i < rxq->nb_rx_desc; i++) {
4015 volatile union ixgbe_adv_rx_desc *rxd;
4016 struct rte_mbuf *mbuf = rte_mbuf_raw_alloc(rxq->mb_pool);
4019 PMD_INIT_LOG(ERR, "RX mbuf alloc failed queue_id=%u",
4020 (unsigned) rxq->queue_id);
4024 rte_mbuf_refcnt_set(mbuf, 1);
4026 mbuf->data_off = RTE_PKTMBUF_HEADROOM;
4028 mbuf->port = rxq->port_id;
4031 rte_cpu_to_le_64(rte_mbuf_data_dma_addr_default(mbuf));
4032 rxd = &rxq->rx_ring[i];
4033 rxd->read.hdr_addr = 0;
4034 rxd->read.pkt_addr = dma_addr;
4042 ixgbe_config_vf_rss(struct rte_eth_dev *dev)
4044 struct ixgbe_hw *hw;
4047 ixgbe_rss_configure(dev);
4049 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4051 /* MRQC: enable VF RSS */
4052 mrqc = IXGBE_READ_REG(hw, IXGBE_MRQC);
4053 mrqc &= ~IXGBE_MRQC_MRQE_MASK;
4054 switch (RTE_ETH_DEV_SRIOV(dev).active) {
4056 mrqc |= IXGBE_MRQC_VMDQRSS64EN;
4060 mrqc |= IXGBE_MRQC_VMDQRSS32EN;
4064 PMD_INIT_LOG(ERR, "Invalid pool number in IOV mode with VMDQ RSS");
4068 IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc);
4074 ixgbe_config_vf_default(struct rte_eth_dev *dev)
4076 struct ixgbe_hw *hw =
4077 IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4079 switch (RTE_ETH_DEV_SRIOV(dev).active) {
4081 IXGBE_WRITE_REG(hw, IXGBE_MRQC,
4086 IXGBE_WRITE_REG(hw, IXGBE_MRQC,
4087 IXGBE_MRQC_VMDQRT4TCEN);
4091 IXGBE_WRITE_REG(hw, IXGBE_MRQC,
4092 IXGBE_MRQC_VMDQRT8TCEN);
4096 "invalid pool number in IOV mode");
4103 ixgbe_dev_mq_rx_configure(struct rte_eth_dev *dev)
4105 struct ixgbe_hw *hw =
4106 IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4108 if (hw->mac.type == ixgbe_mac_82598EB)
4111 if (RTE_ETH_DEV_SRIOV(dev).active == 0) {
4113 * SRIOV inactive scheme
4114 * any DCB/RSS w/o VMDq multi-queue setting
4116 switch (dev->data->dev_conf.rxmode.mq_mode) {
4118 case ETH_MQ_RX_DCB_RSS:
4119 case ETH_MQ_RX_VMDQ_RSS:
4120 ixgbe_rss_configure(dev);
4123 case ETH_MQ_RX_VMDQ_DCB:
4124 ixgbe_vmdq_dcb_configure(dev);
4127 case ETH_MQ_RX_VMDQ_ONLY:
4128 ixgbe_vmdq_rx_hw_configure(dev);
4131 case ETH_MQ_RX_NONE:
4133 /* if mq_mode is none, disable rss mode.*/
4134 ixgbe_rss_disable(dev);
4139 * SRIOV active scheme
4140 * Support RSS together with VMDq & SRIOV
4142 switch (dev->data->dev_conf.rxmode.mq_mode) {
4144 case ETH_MQ_RX_VMDQ_RSS:
4145 ixgbe_config_vf_rss(dev);
4147 case ETH_MQ_RX_VMDQ_DCB:
4148 ixgbe_vmdq_dcb_configure(dev);
4150 /* FIXME if support DCB/RSS together with VMDq & SRIOV */
4151 case ETH_MQ_RX_VMDQ_DCB_RSS:
4153 "Could not support DCB/RSS with VMDq & SRIOV");
4156 ixgbe_config_vf_default(dev);
4165 ixgbe_dev_mq_tx_configure(struct rte_eth_dev *dev)
4167 struct ixgbe_hw *hw =
4168 IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4172 if (hw->mac.type == ixgbe_mac_82598EB)
4175 /* disable arbiter before setting MTQC */
4176 rttdcs = IXGBE_READ_REG(hw, IXGBE_RTTDCS);
4177 rttdcs |= IXGBE_RTTDCS_ARBDIS;
4178 IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs);
4180 if (RTE_ETH_DEV_SRIOV(dev).active == 0) {
4182 * SRIOV inactive scheme
4183 * any DCB w/o VMDq multi-queue setting
4185 if (dev->data->dev_conf.txmode.mq_mode == ETH_MQ_TX_VMDQ_ONLY)
4186 ixgbe_vmdq_tx_hw_configure(hw);
4188 mtqc = IXGBE_MTQC_64Q_1PB;
4189 IXGBE_WRITE_REG(hw, IXGBE_MTQC, mtqc);
4192 switch (RTE_ETH_DEV_SRIOV(dev).active) {
4195 * SRIOV active scheme
4196 * FIXME if support DCB together with VMDq & SRIOV
4199 mtqc = IXGBE_MTQC_VT_ENA | IXGBE_MTQC_64VF;
4202 mtqc = IXGBE_MTQC_VT_ENA | IXGBE_MTQC_32VF;
4205 mtqc = IXGBE_MTQC_VT_ENA | IXGBE_MTQC_RT_ENA |
4209 mtqc = IXGBE_MTQC_64Q_1PB;
4210 PMD_INIT_LOG(ERR, "invalid pool number in IOV mode");
4212 IXGBE_WRITE_REG(hw, IXGBE_MTQC, mtqc);
4215 /* re-enable arbiter */
4216 rttdcs &= ~IXGBE_RTTDCS_ARBDIS;
4217 IXGBE_WRITE_REG(hw, IXGBE_RTTDCS, rttdcs);
4223 * ixgbe_get_rscctl_maxdesc - Calculate the RSCCTL[n].MAXDESC for PF
4225 * Return the RSCCTL[n].MAXDESC for 82599 and x540 PF devices according to the
4226 * spec rev. 3.0 chapter 8.2.3.8.13.
4228 * @pool Memory pool of the Rx queue
4230 static inline uint32_t
4231 ixgbe_get_rscctl_maxdesc(struct rte_mempool *pool)
4233 struct rte_pktmbuf_pool_private *mp_priv = rte_mempool_get_priv(pool);
4235 /* MAXDESC * SRRCTL.BSIZEPKT must not exceed 64 KB minus one */
4238 (mp_priv->mbuf_data_room_size - RTE_PKTMBUF_HEADROOM);
4241 return IXGBE_RSCCTL_MAXDESC_16;
4242 else if (maxdesc >= 8)
4243 return IXGBE_RSCCTL_MAXDESC_8;
4244 else if (maxdesc >= 4)
4245 return IXGBE_RSCCTL_MAXDESC_4;
4247 return IXGBE_RSCCTL_MAXDESC_1;
4251 * ixgbe_set_ivar - Setup the correct IVAR register for a particular MSIX
4254 * (Taken from FreeBSD tree)
4255 * (yes this is all very magic and confusing :)
4258 * @entry the register array entry
4259 * @vector the MSIX vector for this queue
4263 ixgbe_set_ivar(struct rte_eth_dev *dev, u8 entry, u8 vector, s8 type)
4265 struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4268 vector |= IXGBE_IVAR_ALLOC_VAL;
4270 switch (hw->mac.type) {
4272 case ixgbe_mac_82598EB:
4274 entry = IXGBE_IVAR_OTHER_CAUSES_INDEX;
4276 entry += (type * 64);
4277 index = (entry >> 2) & 0x1F;
4278 ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(index));
4279 ivar &= ~(0xFF << (8 * (entry & 0x3)));
4280 ivar |= (vector << (8 * (entry & 0x3)));
4281 IXGBE_WRITE_REG(hw, IXGBE_IVAR(index), ivar);
4284 case ixgbe_mac_82599EB:
4285 case ixgbe_mac_X540:
4286 if (type == -1) { /* MISC IVAR */
4287 index = (entry & 1) * 8;
4288 ivar = IXGBE_READ_REG(hw, IXGBE_IVAR_MISC);
4289 ivar &= ~(0xFF << index);
4290 ivar |= (vector << index);
4291 IXGBE_WRITE_REG(hw, IXGBE_IVAR_MISC, ivar);
4292 } else { /* RX/TX IVARS */
4293 index = (16 * (entry & 1)) + (8 * type);
4294 ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(entry >> 1));
4295 ivar &= ~(0xFF << index);
4296 ivar |= (vector << index);
4297 IXGBE_WRITE_REG(hw, IXGBE_IVAR(entry >> 1), ivar);
4307 void __attribute__((cold))
4308 ixgbe_set_rx_function(struct rte_eth_dev *dev)
4310 uint16_t i, rx_using_sse;
4311 struct ixgbe_adapter *adapter =
4312 (struct ixgbe_adapter *)dev->data->dev_private;
4315 * In order to allow Vector Rx there are a few configuration
4316 * conditions to be met and Rx Bulk Allocation should be allowed.
4318 if (ixgbe_rx_vec_dev_conf_condition_check(dev) ||
4319 !adapter->rx_bulk_alloc_allowed) {
4320 PMD_INIT_LOG(DEBUG, "Port[%d] doesn't meet Vector Rx "
4321 "preconditions or RTE_IXGBE_INC_VECTOR is "
4323 dev->data->port_id);
4325 adapter->rx_vec_allowed = false;
4329 * Initialize the appropriate LRO callback.
4331 * If all queues satisfy the bulk allocation preconditions
4332 * (hw->rx_bulk_alloc_allowed is TRUE) then we may use bulk allocation.
4333 * Otherwise use a single allocation version.
4335 if (dev->data->lro) {
4336 if (adapter->rx_bulk_alloc_allowed) {
4337 PMD_INIT_LOG(DEBUG, "LRO is requested. Using a bulk "
4338 "allocation version");
4339 dev->rx_pkt_burst = ixgbe_recv_pkts_lro_bulk_alloc;
4341 PMD_INIT_LOG(DEBUG, "LRO is requested. Using a single "
4342 "allocation version");
4343 dev->rx_pkt_burst = ixgbe_recv_pkts_lro_single_alloc;
4345 } else if (dev->data->scattered_rx) {
4347 * Set the non-LRO scattered callback: there are Vector and
4348 * single allocation versions.
4350 if (adapter->rx_vec_allowed) {
4351 PMD_INIT_LOG(DEBUG, "Using Vector Scattered Rx "
4352 "callback (port=%d).",
4353 dev->data->port_id);
4355 dev->rx_pkt_burst = ixgbe_recv_scattered_pkts_vec;
4356 } else if (adapter->rx_bulk_alloc_allowed) {
4357 PMD_INIT_LOG(DEBUG, "Using a Scattered with bulk "
4358 "allocation callback (port=%d).",
4359 dev->data->port_id);
4360 dev->rx_pkt_burst = ixgbe_recv_pkts_lro_bulk_alloc;
4362 PMD_INIT_LOG(DEBUG, "Using Regualr (non-vector, "
4363 "single allocation) "
4364 "Scattered Rx callback "
4366 dev->data->port_id);
4368 dev->rx_pkt_burst = ixgbe_recv_pkts_lro_single_alloc;
4371 * Below we set "simple" callbacks according to port/queues parameters.
4372 * If parameters allow we are going to choose between the following
4376 * - Single buffer allocation (the simplest one)
4378 } else if (adapter->rx_vec_allowed) {
4379 PMD_INIT_LOG(DEBUG, "Vector rx enabled, please make sure RX "
4380 "burst size no less than %d (port=%d).",
4381 RTE_IXGBE_DESCS_PER_LOOP,
4382 dev->data->port_id);
4384 dev->rx_pkt_burst = ixgbe_recv_pkts_vec;
4385 } else if (adapter->rx_bulk_alloc_allowed) {
4386 PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions are "
4387 "satisfied. Rx Burst Bulk Alloc function "
4388 "will be used on port=%d.",
4389 dev->data->port_id);
4391 dev->rx_pkt_burst = ixgbe_recv_pkts_bulk_alloc;
4393 PMD_INIT_LOG(DEBUG, "Rx Burst Bulk Alloc Preconditions are not "
4394 "satisfied, or Scattered Rx is requested "
4396 dev->data->port_id);
4398 dev->rx_pkt_burst = ixgbe_recv_pkts;
4401 /* Propagate information about RX function choice through all queues. */
4404 (dev->rx_pkt_burst == ixgbe_recv_scattered_pkts_vec ||
4405 dev->rx_pkt_burst == ixgbe_recv_pkts_vec);
4407 for (i = 0; i < dev->data->nb_rx_queues; i++) {
4408 struct ixgbe_rx_queue *rxq = dev->data->rx_queues[i];
4410 rxq->rx_using_sse = rx_using_sse;
4415 * ixgbe_set_rsc - configure RSC related port HW registers
4417 * Configures the port's RSC related registers according to the 4.6.7.2 chapter
4418 * of 82599 Spec (x540 configuration is virtually the same).
4422 * Returns 0 in case of success or a non-zero error code
4425 ixgbe_set_rsc(struct rte_eth_dev *dev)
4427 struct rte_eth_rxmode *rx_conf = &dev->data->dev_conf.rxmode;
4428 struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4429 struct rte_eth_dev_info dev_info = { 0 };
4430 bool rsc_capable = false;
4435 dev->dev_ops->dev_infos_get(dev, &dev_info);
4436 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_TCP_LRO)
4439 if (!rsc_capable && rx_conf->enable_lro) {
4440 PMD_INIT_LOG(CRIT, "LRO is requested on HW that doesn't "
4445 /* RSC global configuration (chapter 4.6.7.2.1 of 82599 Spec) */
4447 if (!rx_conf->hw_strip_crc && rx_conf->enable_lro) {
4449 * According to chapter of 4.6.7.2.1 of the Spec Rev.
4450 * 3.0 RSC configuration requires HW CRC stripping being
4451 * enabled. If user requested both HW CRC stripping off
4452 * and RSC on - return an error.
4454 PMD_INIT_LOG(CRIT, "LRO can't be enabled when HW CRC "
4459 /* RFCTL configuration */
4461 uint32_t rfctl = IXGBE_READ_REG(hw, IXGBE_RFCTL);
4463 if (rx_conf->enable_lro)
4465 * Since NFS packets coalescing is not supported - clear
4466 * RFCTL.NFSW_DIS and RFCTL.NFSR_DIS when RSC is
4469 rfctl &= ~(IXGBE_RFCTL_RSC_DIS | IXGBE_RFCTL_NFSW_DIS |
4470 IXGBE_RFCTL_NFSR_DIS);
4472 rfctl |= IXGBE_RFCTL_RSC_DIS;
4474 IXGBE_WRITE_REG(hw, IXGBE_RFCTL, rfctl);
4477 /* If LRO hasn't been requested - we are done here. */
4478 if (!rx_conf->enable_lro)
4481 /* Set RDRXCTL.RSCACKC bit */
4482 rdrxctl = IXGBE_READ_REG(hw, IXGBE_RDRXCTL);
4483 rdrxctl |= IXGBE_RDRXCTL_RSCACKC;
4484 IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, rdrxctl);
4486 /* Per-queue RSC configuration (chapter 4.6.7.2.2 of 82599 Spec) */
4487 for (i = 0; i < dev->data->nb_rx_queues; i++) {
4488 struct ixgbe_rx_queue *rxq = dev->data->rx_queues[i];
4490 IXGBE_READ_REG(hw, IXGBE_SRRCTL(rxq->reg_idx));
4492 IXGBE_READ_REG(hw, IXGBE_RSCCTL(rxq->reg_idx));
4494 IXGBE_READ_REG(hw, IXGBE_PSRTYPE(rxq->reg_idx));
4496 IXGBE_READ_REG(hw, IXGBE_EITR(rxq->reg_idx));
4499 * ixgbe PMD doesn't support header-split at the moment.
4501 * Following the 4.6.7.2.1 chapter of the 82599/x540
4502 * Spec if RSC is enabled the SRRCTL[n].BSIZEHEADER
4503 * should be configured even if header split is not
4504 * enabled. We will configure it 128 bytes following the
4505 * recommendation in the spec.
4507 srrctl &= ~IXGBE_SRRCTL_BSIZEHDR_MASK;
4508 srrctl |= (128 << IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT) &
4509 IXGBE_SRRCTL_BSIZEHDR_MASK;
4512 * TODO: Consider setting the Receive Descriptor Minimum
4513 * Threshold Size for an RSC case. This is not an obviously
4514 * beneficiary option but the one worth considering...
4517 rscctl |= IXGBE_RSCCTL_RSCEN;
4518 rscctl |= ixgbe_get_rscctl_maxdesc(rxq->mb_pool);
4519 psrtype |= IXGBE_PSRTYPE_TCPHDR;
4522 * RSC: Set ITR interval corresponding to 2K ints/s.
4524 * Full-sized RSC aggregations for a 10Gb/s link will
4525 * arrive at about 20K aggregation/s rate.
4527 * 2K inst/s rate will make only 10% of the
4528 * aggregations to be closed due to the interrupt timer
4529 * expiration for a streaming at wire-speed case.
4531 * For a sparse streaming case this setting will yield
4532 * at most 500us latency for a single RSC aggregation.
4534 eitr &= ~IXGBE_EITR_ITR_INT_MASK;
4535 eitr |= IXGBE_EITR_INTERVAL_US(500) | IXGBE_EITR_CNT_WDIS;
4537 IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(rxq->reg_idx), srrctl);
4538 IXGBE_WRITE_REG(hw, IXGBE_RSCCTL(rxq->reg_idx), rscctl);
4539 IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(rxq->reg_idx), psrtype);
4540 IXGBE_WRITE_REG(hw, IXGBE_EITR(rxq->reg_idx), eitr);
4543 * RSC requires the mapping of the queue to the
4546 ixgbe_set_ivar(dev, rxq->reg_idx, i, 0);
4551 PMD_INIT_LOG(DEBUG, "enabling LRO mode");
4557 * Initializes Receive Unit.
4559 int __attribute__((cold))
4560 ixgbe_dev_rx_init(struct rte_eth_dev *dev)
4562 struct ixgbe_hw *hw;
4563 struct ixgbe_rx_queue *rxq;
4574 struct rte_eth_rxmode *rx_conf = &dev->data->dev_conf.rxmode;
4577 PMD_INIT_FUNC_TRACE();
4578 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4581 * Make sure receives are disabled while setting
4582 * up the RX context (registers, descriptor rings, etc.).
4584 rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
4585 IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl & ~IXGBE_RXCTRL_RXEN);
4587 /* Enable receipt of broadcasted frames */
4588 fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
4589 fctrl |= IXGBE_FCTRL_BAM;
4590 fctrl |= IXGBE_FCTRL_DPF;
4591 fctrl |= IXGBE_FCTRL_PMCF;
4592 IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl);
4595 * Configure CRC stripping, if any.
4597 hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
4598 if (rx_conf->hw_strip_crc)
4599 hlreg0 |= IXGBE_HLREG0_RXCRCSTRP;
4601 hlreg0 &= ~IXGBE_HLREG0_RXCRCSTRP;
4604 * Configure jumbo frame support, if any.
4606 if (rx_conf->jumbo_frame == 1) {
4607 hlreg0 |= IXGBE_HLREG0_JUMBOEN;
4608 maxfrs = IXGBE_READ_REG(hw, IXGBE_MAXFRS);
4609 maxfrs &= 0x0000FFFF;
4610 maxfrs |= (rx_conf->max_rx_pkt_len << 16);
4611 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, maxfrs);
4613 hlreg0 &= ~IXGBE_HLREG0_JUMBOEN;
4616 * If loopback mode is configured for 82599, set LPBK bit.
4618 if (hw->mac.type == ixgbe_mac_82599EB &&
4619 dev->data->dev_conf.lpbk_mode == IXGBE_LPBK_82599_TX_RX)
4620 hlreg0 |= IXGBE_HLREG0_LPBK;
4622 hlreg0 &= ~IXGBE_HLREG0_LPBK;
4624 IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
4626 /* Setup RX queues */
4627 for (i = 0; i < dev->data->nb_rx_queues; i++) {
4628 rxq = dev->data->rx_queues[i];
4631 * Reset crc_len in case it was changed after queue setup by a
4632 * call to configure.
4634 rxq->crc_len = rx_conf->hw_strip_crc ? 0 : ETHER_CRC_LEN;
4636 /* Setup the Base and Length of the Rx Descriptor Rings */
4637 bus_addr = rxq->rx_ring_phys_addr;
4638 IXGBE_WRITE_REG(hw, IXGBE_RDBAL(rxq->reg_idx),
4639 (uint32_t)(bus_addr & 0x00000000ffffffffULL));
4640 IXGBE_WRITE_REG(hw, IXGBE_RDBAH(rxq->reg_idx),
4641 (uint32_t)(bus_addr >> 32));
4642 IXGBE_WRITE_REG(hw, IXGBE_RDLEN(rxq->reg_idx),
4643 rxq->nb_rx_desc * sizeof(union ixgbe_adv_rx_desc));
4644 IXGBE_WRITE_REG(hw, IXGBE_RDH(rxq->reg_idx), 0);
4645 IXGBE_WRITE_REG(hw, IXGBE_RDT(rxq->reg_idx), 0);
4647 /* Configure the SRRCTL register */
4648 #ifdef RTE_HEADER_SPLIT_ENABLE
4650 * Configure Header Split
4652 if (rx_conf->header_split) {
4653 if (hw->mac.type == ixgbe_mac_82599EB) {
4654 /* Must setup the PSRTYPE register */
4657 psrtype = IXGBE_PSRTYPE_TCPHDR |
4658 IXGBE_PSRTYPE_UDPHDR |
4659 IXGBE_PSRTYPE_IPV4HDR |
4660 IXGBE_PSRTYPE_IPV6HDR;
4661 IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(rxq->reg_idx), psrtype);
4663 srrctl = ((rx_conf->split_hdr_size <<
4664 IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT) &
4665 IXGBE_SRRCTL_BSIZEHDR_MASK);
4666 srrctl |= IXGBE_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS;
4669 srrctl = IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF;
4671 /* Set if packets are dropped when no descriptors available */
4673 srrctl |= IXGBE_SRRCTL_DROP_EN;
4676 * Configure the RX buffer size in the BSIZEPACKET field of
4677 * the SRRCTL register of the queue.
4678 * The value is in 1 KB resolution. Valid values can be from
4681 buf_size = (uint16_t)(rte_pktmbuf_data_room_size(rxq->mb_pool) -
4682 RTE_PKTMBUF_HEADROOM);
4683 srrctl |= ((buf_size >> IXGBE_SRRCTL_BSIZEPKT_SHIFT) &
4684 IXGBE_SRRCTL_BSIZEPKT_MASK);
4686 IXGBE_WRITE_REG(hw, IXGBE_SRRCTL(rxq->reg_idx), srrctl);
4688 buf_size = (uint16_t) ((srrctl & IXGBE_SRRCTL_BSIZEPKT_MASK) <<
4689 IXGBE_SRRCTL_BSIZEPKT_SHIFT);
4691 /* It adds dual VLAN length for supporting dual VLAN */
4692 if (dev->data->dev_conf.rxmode.max_rx_pkt_len +
4693 2 * IXGBE_VLAN_TAG_SIZE > buf_size)
4694 dev->data->scattered_rx = 1;
4697 if (rx_conf->enable_scatter)
4698 dev->data->scattered_rx = 1;
4701 * Device configured with multiple RX queues.
4703 ixgbe_dev_mq_rx_configure(dev);
4706 * Setup the Checksum Register.
4707 * Disable Full-Packet Checksum which is mutually exclusive with RSS.
4708 * Enable IP/L4 checkum computation by hardware if requested to do so.
4710 rxcsum = IXGBE_READ_REG(hw, IXGBE_RXCSUM);
4711 rxcsum |= IXGBE_RXCSUM_PCSD;
4712 if (rx_conf->hw_ip_checksum)
4713 rxcsum |= IXGBE_RXCSUM_IPPCSE;
4715 rxcsum &= ~IXGBE_RXCSUM_IPPCSE;
4717 IXGBE_WRITE_REG(hw, IXGBE_RXCSUM, rxcsum);
4719 if (hw->mac.type == ixgbe_mac_82599EB ||
4720 hw->mac.type == ixgbe_mac_X540) {
4721 rdrxctl = IXGBE_READ_REG(hw, IXGBE_RDRXCTL);
4722 if (rx_conf->hw_strip_crc)
4723 rdrxctl |= IXGBE_RDRXCTL_CRCSTRIP;
4725 rdrxctl &= ~IXGBE_RDRXCTL_CRCSTRIP;
4726 rdrxctl &= ~IXGBE_RDRXCTL_RSCFRSTSIZE;
4727 IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, rdrxctl);
4730 rc = ixgbe_set_rsc(dev);
4734 ixgbe_set_rx_function(dev);
4740 * Initializes Transmit Unit.
4742 void __attribute__((cold))
4743 ixgbe_dev_tx_init(struct rte_eth_dev *dev)
4745 struct ixgbe_hw *hw;
4746 struct ixgbe_tx_queue *txq;
4752 PMD_INIT_FUNC_TRACE();
4753 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4755 /* Enable TX CRC (checksum offload requirement) and hw padding
4758 hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0);
4759 hlreg0 |= (IXGBE_HLREG0_TXCRCEN | IXGBE_HLREG0_TXPADEN);
4760 IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0);
4762 /* Setup the Base and Length of the Tx Descriptor Rings */
4763 for (i = 0; i < dev->data->nb_tx_queues; i++) {
4764 txq = dev->data->tx_queues[i];
4766 bus_addr = txq->tx_ring_phys_addr;
4767 IXGBE_WRITE_REG(hw, IXGBE_TDBAL(txq->reg_idx),
4768 (uint32_t)(bus_addr & 0x00000000ffffffffULL));
4769 IXGBE_WRITE_REG(hw, IXGBE_TDBAH(txq->reg_idx),
4770 (uint32_t)(bus_addr >> 32));
4771 IXGBE_WRITE_REG(hw, IXGBE_TDLEN(txq->reg_idx),
4772 txq->nb_tx_desc * sizeof(union ixgbe_adv_tx_desc));
4773 /* Setup the HW Tx Head and TX Tail descriptor pointers */
4774 IXGBE_WRITE_REG(hw, IXGBE_TDH(txq->reg_idx), 0);
4775 IXGBE_WRITE_REG(hw, IXGBE_TDT(txq->reg_idx), 0);
4778 * Disable Tx Head Writeback RO bit, since this hoses
4779 * bookkeeping if things aren't delivered in order.
4781 switch (hw->mac.type) {
4782 case ixgbe_mac_82598EB:
4783 txctrl = IXGBE_READ_REG(hw,
4784 IXGBE_DCA_TXCTRL(txq->reg_idx));
4785 txctrl &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN;
4786 IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(txq->reg_idx),
4790 case ixgbe_mac_82599EB:
4791 case ixgbe_mac_X540:
4792 case ixgbe_mac_X550:
4793 case ixgbe_mac_X550EM_x:
4794 case ixgbe_mac_X550EM_a:
4796 txctrl = IXGBE_READ_REG(hw,
4797 IXGBE_DCA_TXCTRL_82599(txq->reg_idx));
4798 txctrl &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN;
4799 IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL_82599(txq->reg_idx),
4805 /* Device configured with multiple TX queues. */
4806 ixgbe_dev_mq_tx_configure(dev);
4810 * Set up link for 82599 loopback mode Tx->Rx.
4812 static inline void __attribute__((cold))
4813 ixgbe_setup_loopback_link_82599(struct ixgbe_hw *hw)
4815 PMD_INIT_FUNC_TRACE();
4817 if (ixgbe_verify_lesm_fw_enabled_82599(hw)) {
4818 if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM) !=
4820 PMD_INIT_LOG(ERR, "Could not enable loopback mode");
4829 IXGBE_AUTOC_LMS_10G_LINK_NO_AN | IXGBE_AUTOC_FLU);
4830 ixgbe_reset_pipeline_82599(hw);
4832 hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_MAC_CSR_SM);
4838 * Start Transmit and Receive Units.
4840 int __attribute__((cold))
4841 ixgbe_dev_rxtx_start(struct rte_eth_dev *dev)
4843 struct ixgbe_hw *hw;
4844 struct ixgbe_tx_queue *txq;
4845 struct ixgbe_rx_queue *rxq;
4852 PMD_INIT_FUNC_TRACE();
4853 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4855 for (i = 0; i < dev->data->nb_tx_queues; i++) {
4856 txq = dev->data->tx_queues[i];
4857 /* Setup Transmit Threshold Registers */
4858 txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(txq->reg_idx));
4859 txdctl |= txq->pthresh & 0x7F;
4860 txdctl |= ((txq->hthresh & 0x7F) << 8);
4861 txdctl |= ((txq->wthresh & 0x7F) << 16);
4862 IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(txq->reg_idx), txdctl);
4865 if (hw->mac.type != ixgbe_mac_82598EB) {
4866 dmatxctl = IXGBE_READ_REG(hw, IXGBE_DMATXCTL);
4867 dmatxctl |= IXGBE_DMATXCTL_TE;
4868 IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, dmatxctl);
4871 for (i = 0; i < dev->data->nb_tx_queues; i++) {
4872 txq = dev->data->tx_queues[i];
4873 if (!txq->tx_deferred_start) {
4874 ret = ixgbe_dev_tx_queue_start(dev, i);
4880 for (i = 0; i < dev->data->nb_rx_queues; i++) {
4881 rxq = dev->data->rx_queues[i];
4882 if (!rxq->rx_deferred_start) {
4883 ret = ixgbe_dev_rx_queue_start(dev, i);
4889 /* Enable Receive engine */
4890 rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL);
4891 if (hw->mac.type == ixgbe_mac_82598EB)
4892 rxctrl |= IXGBE_RXCTRL_DMBYPS;
4893 rxctrl |= IXGBE_RXCTRL_RXEN;
4894 hw->mac.ops.enable_rx_dma(hw, rxctrl);
4896 /* If loopback mode is enabled for 82599, set up the link accordingly */
4897 if (hw->mac.type == ixgbe_mac_82599EB &&
4898 dev->data->dev_conf.lpbk_mode == IXGBE_LPBK_82599_TX_RX)
4899 ixgbe_setup_loopback_link_82599(hw);
4905 * Start Receive Units for specified queue.
4907 int __attribute__((cold))
4908 ixgbe_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
4910 struct ixgbe_hw *hw;
4911 struct ixgbe_rx_queue *rxq;
4915 PMD_INIT_FUNC_TRACE();
4916 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4918 if (rx_queue_id < dev->data->nb_rx_queues) {
4919 rxq = dev->data->rx_queues[rx_queue_id];
4921 /* Allocate buffers for descriptor rings */
4922 if (ixgbe_alloc_rx_queue_mbufs(rxq) != 0) {
4923 PMD_INIT_LOG(ERR, "Could not alloc mbuf for queue:%d",
4927 rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(rxq->reg_idx));
4928 rxdctl |= IXGBE_RXDCTL_ENABLE;
4929 IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(rxq->reg_idx), rxdctl);
4931 /* Wait until RX Enable ready */
4932 poll_ms = RTE_IXGBE_REGISTER_POLL_WAIT_10_MS;
4935 rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(rxq->reg_idx));
4936 } while (--poll_ms && !(rxdctl & IXGBE_RXDCTL_ENABLE));
4938 PMD_INIT_LOG(ERR, "Could not enable Rx Queue %d",
4941 IXGBE_WRITE_REG(hw, IXGBE_RDH(rxq->reg_idx), 0);
4942 IXGBE_WRITE_REG(hw, IXGBE_RDT(rxq->reg_idx), rxq->nb_rx_desc - 1);
4943 dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
4951 * Stop Receive Units for specified queue.
4953 int __attribute__((cold))
4954 ixgbe_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
4956 struct ixgbe_hw *hw;
4957 struct ixgbe_adapter *adapter =
4958 (struct ixgbe_adapter *)dev->data->dev_private;
4959 struct ixgbe_rx_queue *rxq;
4963 PMD_INIT_FUNC_TRACE();
4964 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
4966 if (rx_queue_id < dev->data->nb_rx_queues) {
4967 rxq = dev->data->rx_queues[rx_queue_id];
4969 rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(rxq->reg_idx));
4970 rxdctl &= ~IXGBE_RXDCTL_ENABLE;
4971 IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(rxq->reg_idx), rxdctl);
4973 /* Wait until RX Enable bit clear */
4974 poll_ms = RTE_IXGBE_REGISTER_POLL_WAIT_10_MS;
4977 rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(rxq->reg_idx));
4978 } while (--poll_ms && (rxdctl & IXGBE_RXDCTL_ENABLE));
4980 PMD_INIT_LOG(ERR, "Could not disable Rx Queue %d",
4983 rte_delay_us(RTE_IXGBE_WAIT_100_US);
4985 ixgbe_rx_queue_release_mbufs(rxq);
4986 ixgbe_reset_rx_queue(adapter, rxq);
4987 dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
4996 * Start Transmit Units for specified queue.
4998 int __attribute__((cold))
4999 ixgbe_dev_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
5001 struct ixgbe_hw *hw;
5002 struct ixgbe_tx_queue *txq;
5006 PMD_INIT_FUNC_TRACE();
5007 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
5009 if (tx_queue_id < dev->data->nb_tx_queues) {
5010 txq = dev->data->tx_queues[tx_queue_id];
5011 txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(txq->reg_idx));
5012 txdctl |= IXGBE_TXDCTL_ENABLE;
5013 IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(txq->reg_idx), txdctl);
5015 /* Wait until TX Enable ready */
5016 if (hw->mac.type == ixgbe_mac_82599EB) {
5017 poll_ms = RTE_IXGBE_REGISTER_POLL_WAIT_10_MS;
5020 txdctl = IXGBE_READ_REG(hw,
5021 IXGBE_TXDCTL(txq->reg_idx));
5022 } while (--poll_ms && !(txdctl & IXGBE_TXDCTL_ENABLE));
5024 PMD_INIT_LOG(ERR, "Could not enable "
5025 "Tx Queue %d", tx_queue_id);
5028 IXGBE_WRITE_REG(hw, IXGBE_TDH(txq->reg_idx), 0);
5029 IXGBE_WRITE_REG(hw, IXGBE_TDT(txq->reg_idx), 0);
5030 dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
5038 * Stop Transmit Units for specified queue.
5040 int __attribute__((cold))
5041 ixgbe_dev_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
5043 struct ixgbe_hw *hw;
5044 struct ixgbe_tx_queue *txq;
5046 uint32_t txtdh, txtdt;
5049 PMD_INIT_FUNC_TRACE();
5050 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
5052 if (tx_queue_id >= dev->data->nb_tx_queues)
5055 txq = dev->data->tx_queues[tx_queue_id];
5057 /* Wait until TX queue is empty */
5058 if (hw->mac.type == ixgbe_mac_82599EB) {
5059 poll_ms = RTE_IXGBE_REGISTER_POLL_WAIT_10_MS;
5061 rte_delay_us(RTE_IXGBE_WAIT_100_US);
5062 txtdh = IXGBE_READ_REG(hw,
5063 IXGBE_TDH(txq->reg_idx));
5064 txtdt = IXGBE_READ_REG(hw,
5065 IXGBE_TDT(txq->reg_idx));
5066 } while (--poll_ms && (txtdh != txtdt));
5068 PMD_INIT_LOG(ERR, "Tx Queue %d is not empty "
5069 "when stopping.", tx_queue_id);
5072 txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(txq->reg_idx));
5073 txdctl &= ~IXGBE_TXDCTL_ENABLE;
5074 IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(txq->reg_idx), txdctl);
5076 /* Wait until TX Enable bit clear */
5077 if (hw->mac.type == ixgbe_mac_82599EB) {
5078 poll_ms = RTE_IXGBE_REGISTER_POLL_WAIT_10_MS;
5081 txdctl = IXGBE_READ_REG(hw,
5082 IXGBE_TXDCTL(txq->reg_idx));
5083 } while (--poll_ms && (txdctl & IXGBE_TXDCTL_ENABLE));
5085 PMD_INIT_LOG(ERR, "Could not disable "
5086 "Tx Queue %d", tx_queue_id);
5089 if (txq->ops != NULL) {
5090 txq->ops->release_mbufs(txq);
5091 txq->ops->reset(txq);
5093 dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
5099 ixgbe_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
5100 struct rte_eth_rxq_info *qinfo)
5102 struct ixgbe_rx_queue *rxq;
5104 rxq = dev->data->rx_queues[queue_id];
5106 qinfo->mp = rxq->mb_pool;
5107 qinfo->scattered_rx = dev->data->scattered_rx;
5108 qinfo->nb_desc = rxq->nb_rx_desc;
5110 qinfo->conf.rx_free_thresh = rxq->rx_free_thresh;
5111 qinfo->conf.rx_drop_en = rxq->drop_en;
5112 qinfo->conf.rx_deferred_start = rxq->rx_deferred_start;
5116 ixgbe_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
5117 struct rte_eth_txq_info *qinfo)
5119 struct ixgbe_tx_queue *txq;
5121 txq = dev->data->tx_queues[queue_id];
5123 qinfo->nb_desc = txq->nb_tx_desc;
5125 qinfo->conf.tx_thresh.pthresh = txq->pthresh;
5126 qinfo->conf.tx_thresh.hthresh = txq->hthresh;
5127 qinfo->conf.tx_thresh.wthresh = txq->wthresh;
5129 qinfo->conf.tx_free_thresh = txq->tx_free_thresh;
5130 qinfo->conf.tx_rs_thresh = txq->tx_rs_thresh;
5131 qinfo->conf.txq_flags = txq->txq_flags;
5132 qinfo->conf.tx_deferred_start = txq->tx_deferred_start;
5136 * [VF] Initializes Receive Unit.
5138 int __attribute__((cold))
5139 ixgbevf_dev_rx_init(struct rte_eth_dev *dev)
5141 struct ixgbe_hw *hw;
5142 struct ixgbe_rx_queue *rxq;
5144 uint32_t srrctl, psrtype = 0;
5149 PMD_INIT_FUNC_TRACE();
5150 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
5152 if (rte_is_power_of_2(dev->data->nb_rx_queues) == 0) {
5153 PMD_INIT_LOG(ERR, "The number of Rx queue invalid, "
5154 "it should be power of 2");
5158 if (dev->data->nb_rx_queues > hw->mac.max_rx_queues) {
5159 PMD_INIT_LOG(ERR, "The number of Rx queue invalid, "
5160 "it should be equal to or less than %d",
5161 hw->mac.max_rx_queues);
5166 * When the VF driver issues a IXGBE_VF_RESET request, the PF driver
5167 * disables the VF receipt of packets if the PF MTU is > 1500.
5168 * This is done to deal with 82599 limitations that imposes
5169 * the PF and all VFs to share the same MTU.
5170 * Then, the PF driver enables again the VF receipt of packet when
5171 * the VF driver issues a IXGBE_VF_SET_LPE request.
5172 * In the meantime, the VF device cannot be used, even if the VF driver
5173 * and the Guest VM network stack are ready to accept packets with a
5174 * size up to the PF MTU.
5175 * As a work-around to this PF behaviour, force the call to
5176 * ixgbevf_rlpml_set_vf even if jumbo frames are not used. This way,
5177 * VF packets received can work in all cases.
5179 ixgbevf_rlpml_set_vf(hw,
5180 (uint16_t)dev->data->dev_conf.rxmode.max_rx_pkt_len);
5182 /* Setup RX queues */
5183 for (i = 0; i < dev->data->nb_rx_queues; i++) {
5184 rxq = dev->data->rx_queues[i];
5186 /* Allocate buffers for descriptor rings */
5187 ret = ixgbe_alloc_rx_queue_mbufs(rxq);
5191 /* Setup the Base and Length of the Rx Descriptor Rings */
5192 bus_addr = rxq->rx_ring_phys_addr;
5194 IXGBE_WRITE_REG(hw, IXGBE_VFRDBAL(i),
5195 (uint32_t)(bus_addr & 0x00000000ffffffffULL));
5196 IXGBE_WRITE_REG(hw, IXGBE_VFRDBAH(i),
5197 (uint32_t)(bus_addr >> 32));
5198 IXGBE_WRITE_REG(hw, IXGBE_VFRDLEN(i),
5199 rxq->nb_rx_desc * sizeof(union ixgbe_adv_rx_desc));
5200 IXGBE_WRITE_REG(hw, IXGBE_VFRDH(i), 0);
5201 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(i), 0);
5204 /* Configure the SRRCTL register */
5205 #ifdef RTE_HEADER_SPLIT_ENABLE
5207 * Configure Header Split
5209 if (dev->data->dev_conf.rxmode.header_split) {
5210 srrctl = ((dev->data->dev_conf.rxmode.split_hdr_size <<
5211 IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT) &
5212 IXGBE_SRRCTL_BSIZEHDR_MASK);
5213 srrctl |= IXGBE_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS;
5216 srrctl = IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF;
5218 /* Set if packets are dropped when no descriptors available */
5220 srrctl |= IXGBE_SRRCTL_DROP_EN;
5223 * Configure the RX buffer size in the BSIZEPACKET field of
5224 * the SRRCTL register of the queue.
5225 * The value is in 1 KB resolution. Valid values can be from
5228 buf_size = (uint16_t)(rte_pktmbuf_data_room_size(rxq->mb_pool) -
5229 RTE_PKTMBUF_HEADROOM);
5230 srrctl |= ((buf_size >> IXGBE_SRRCTL_BSIZEPKT_SHIFT) &
5231 IXGBE_SRRCTL_BSIZEPKT_MASK);
5234 * VF modification to write virtual function SRRCTL register
5236 IXGBE_WRITE_REG(hw, IXGBE_VFSRRCTL(i), srrctl);
5238 buf_size = (uint16_t) ((srrctl & IXGBE_SRRCTL_BSIZEPKT_MASK) <<
5239 IXGBE_SRRCTL_BSIZEPKT_SHIFT);
5241 if (dev->data->dev_conf.rxmode.enable_scatter ||
5242 /* It adds dual VLAN length for supporting dual VLAN */
5243 (dev->data->dev_conf.rxmode.max_rx_pkt_len +
5244 2 * IXGBE_VLAN_TAG_SIZE) > buf_size) {
5245 if (!dev->data->scattered_rx)
5246 PMD_INIT_LOG(DEBUG, "forcing scatter mode");
5247 dev->data->scattered_rx = 1;
5251 #ifdef RTE_HEADER_SPLIT_ENABLE
5252 if (dev->data->dev_conf.rxmode.header_split)
5253 /* Must setup the PSRTYPE register */
5254 psrtype = IXGBE_PSRTYPE_TCPHDR |
5255 IXGBE_PSRTYPE_UDPHDR |
5256 IXGBE_PSRTYPE_IPV4HDR |
5257 IXGBE_PSRTYPE_IPV6HDR;
5260 /* Set RQPL for VF RSS according to max Rx queue */
5261 psrtype |= (dev->data->nb_rx_queues >> 1) <<
5262 IXGBE_PSRTYPE_RQPL_SHIFT;
5263 IXGBE_WRITE_REG(hw, IXGBE_VFPSRTYPE, psrtype);
5265 ixgbe_set_rx_function(dev);
5271 * [VF] Initializes Transmit Unit.
5273 void __attribute__((cold))
5274 ixgbevf_dev_tx_init(struct rte_eth_dev *dev)
5276 struct ixgbe_hw *hw;
5277 struct ixgbe_tx_queue *txq;
5282 PMD_INIT_FUNC_TRACE();
5283 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
5285 /* Setup the Base and Length of the Tx Descriptor Rings */
5286 for (i = 0; i < dev->data->nb_tx_queues; i++) {
5287 txq = dev->data->tx_queues[i];
5288 bus_addr = txq->tx_ring_phys_addr;
5289 IXGBE_WRITE_REG(hw, IXGBE_VFTDBAL(i),
5290 (uint32_t)(bus_addr & 0x00000000ffffffffULL));
5291 IXGBE_WRITE_REG(hw, IXGBE_VFTDBAH(i),
5292 (uint32_t)(bus_addr >> 32));
5293 IXGBE_WRITE_REG(hw, IXGBE_VFTDLEN(i),
5294 txq->nb_tx_desc * sizeof(union ixgbe_adv_tx_desc));
5295 /* Setup the HW Tx Head and TX Tail descriptor pointers */
5296 IXGBE_WRITE_REG(hw, IXGBE_VFTDH(i), 0);
5297 IXGBE_WRITE_REG(hw, IXGBE_VFTDT(i), 0);
5300 * Disable Tx Head Writeback RO bit, since this hoses
5301 * bookkeeping if things aren't delivered in order.
5303 txctrl = IXGBE_READ_REG(hw,
5304 IXGBE_VFDCA_TXCTRL(i));
5305 txctrl &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN;
5306 IXGBE_WRITE_REG(hw, IXGBE_VFDCA_TXCTRL(i),
5312 * [VF] Start Transmit and Receive Units.
5314 void __attribute__((cold))
5315 ixgbevf_dev_rxtx_start(struct rte_eth_dev *dev)
5317 struct ixgbe_hw *hw;
5318 struct ixgbe_tx_queue *txq;
5319 struct ixgbe_rx_queue *rxq;
5325 PMD_INIT_FUNC_TRACE();
5326 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
5328 for (i = 0; i < dev->data->nb_tx_queues; i++) {
5329 txq = dev->data->tx_queues[i];
5330 /* Setup Transmit Threshold Registers */
5331 txdctl = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i));
5332 txdctl |= txq->pthresh & 0x7F;
5333 txdctl |= ((txq->hthresh & 0x7F) << 8);
5334 txdctl |= ((txq->wthresh & 0x7F) << 16);
5335 IXGBE_WRITE_REG(hw, IXGBE_VFTXDCTL(i), txdctl);
5338 for (i = 0; i < dev->data->nb_tx_queues; i++) {
5340 txdctl = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i));
5341 txdctl |= IXGBE_TXDCTL_ENABLE;
5342 IXGBE_WRITE_REG(hw, IXGBE_VFTXDCTL(i), txdctl);
5345 /* Wait until TX Enable ready */
5348 txdctl = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(i));
5349 } while (--poll_ms && !(txdctl & IXGBE_TXDCTL_ENABLE));
5351 PMD_INIT_LOG(ERR, "Could not enable Tx Queue %d", i);
5353 for (i = 0; i < dev->data->nb_rx_queues; i++) {
5355 rxq = dev->data->rx_queues[i];
5357 rxdctl = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i));
5358 rxdctl |= IXGBE_RXDCTL_ENABLE;
5359 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(i), rxdctl);
5361 /* Wait until RX Enable ready */
5365 rxdctl = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i));
5366 } while (--poll_ms && !(rxdctl & IXGBE_RXDCTL_ENABLE));
5368 PMD_INIT_LOG(ERR, "Could not enable Rx Queue %d", i);
5370 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(i), rxq->nb_rx_desc - 1);
5375 /* Stubs needed for linkage when CONFIG_RTE_IXGBE_INC_VECTOR is set to 'n' */
5376 int __attribute__((weak))
5377 ixgbe_rx_vec_dev_conf_condition_check(struct rte_eth_dev __rte_unused *dev)
5382 uint16_t __attribute__((weak))
5383 ixgbe_recv_pkts_vec(
5384 void __rte_unused *rx_queue,
5385 struct rte_mbuf __rte_unused **rx_pkts,
5386 uint16_t __rte_unused nb_pkts)
5391 uint16_t __attribute__((weak))
5392 ixgbe_recv_scattered_pkts_vec(
5393 void __rte_unused *rx_queue,
5394 struct rte_mbuf __rte_unused **rx_pkts,
5395 uint16_t __rte_unused nb_pkts)
5400 int __attribute__((weak))
5401 ixgbe_rxq_vec_setup(struct ixgbe_rx_queue __rte_unused *rxq)
git.droids-corp.org / dpdk.git / blob