1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(C) 2019 Marvell International Ltd.
8 #include <rte_ethdev_pci.h>
10 #include <rte_malloc.h>
12 #include <rte_mbuf_pool_ops.h>
13 #include <rte_mempool.h>
15 #include "otx2_ethdev.h"
17 static inline uint64_t
18 nix_get_rx_offload_capa(struct otx2_eth_dev *dev)
20 uint64_t capa = NIX_RX_OFFLOAD_CAPA;
22 if (otx2_dev_is_vf(dev))
23 capa &= ~DEV_RX_OFFLOAD_TIMESTAMP;
28 static inline uint64_t
29 nix_get_tx_offload_capa(struct otx2_eth_dev *dev)
33 return NIX_TX_OFFLOAD_CAPA;
36 static const struct otx2_dev_ops otx2_dev_ops = {
37 .link_status_update = otx2_eth_dev_link_status_update,
38 .ptp_info_update = otx2_eth_dev_ptp_info_update
42 nix_lf_alloc(struct otx2_eth_dev *dev, uint32_t nb_rxq, uint32_t nb_txq)
44 struct otx2_mbox *mbox = dev->mbox;
45 struct nix_lf_alloc_req *req;
46 struct nix_lf_alloc_rsp *rsp;
49 req = otx2_mbox_alloc_msg_nix_lf_alloc(mbox);
53 /* XQE_SZ should be in Sync with NIX_CQ_ENTRY_SZ */
54 RTE_BUILD_BUG_ON(NIX_CQ_ENTRY_SZ != 128);
55 req->xqe_sz = NIX_XQESZ_W16;
56 req->rss_sz = dev->rss_info.rss_size;
57 req->rss_grps = NIX_RSS_GRPS;
58 req->npa_func = otx2_npa_pf_func_get();
59 req->sso_func = otx2_sso_pf_func_get();
60 req->rx_cfg = BIT_ULL(35 /* DIS_APAD */);
61 if (dev->rx_offloads & (DEV_RX_OFFLOAD_TCP_CKSUM |
62 DEV_RX_OFFLOAD_UDP_CKSUM)) {
63 req->rx_cfg |= BIT_ULL(37 /* CSUM_OL4 */);
64 req->rx_cfg |= BIT_ULL(36 /* CSUM_IL4 */);
67 rc = otx2_mbox_process_msg(mbox, (void *)&rsp);
71 dev->sqb_size = rsp->sqb_size;
72 dev->tx_chan_base = rsp->tx_chan_base;
73 dev->rx_chan_base = rsp->rx_chan_base;
74 dev->rx_chan_cnt = rsp->rx_chan_cnt;
75 dev->tx_chan_cnt = rsp->tx_chan_cnt;
76 dev->lso_tsov4_idx = rsp->lso_tsov4_idx;
77 dev->lso_tsov6_idx = rsp->lso_tsov6_idx;
78 dev->lf_tx_stats = rsp->lf_tx_stats;
79 dev->lf_rx_stats = rsp->lf_rx_stats;
80 dev->cints = rsp->cints;
81 dev->qints = rsp->qints;
82 dev->npc_flow.channel = dev->rx_chan_base;
88 nix_lf_free(struct otx2_eth_dev *dev)
90 struct otx2_mbox *mbox = dev->mbox;
91 struct nix_lf_free_req *req;
92 struct ndc_sync_op *ndc_req;
95 /* Sync NDC-NIX for LF */
96 ndc_req = otx2_mbox_alloc_msg_ndc_sync_op(mbox);
97 ndc_req->nix_lf_tx_sync = 1;
98 ndc_req->nix_lf_rx_sync = 1;
99 rc = otx2_mbox_process(mbox);
101 otx2_err("Error on NDC-NIX-[TX, RX] LF sync, rc %d", rc);
103 req = otx2_mbox_alloc_msg_nix_lf_free(mbox);
104 /* Let AF driver free all this nix lf's
105 * NPC entries allocated using NPC MBOX.
109 return otx2_mbox_process(mbox);
113 otx2_cgx_rxtx_start(struct otx2_eth_dev *dev)
115 struct otx2_mbox *mbox = dev->mbox;
117 if (otx2_dev_is_vf(dev))
120 otx2_mbox_alloc_msg_cgx_start_rxtx(mbox);
122 return otx2_mbox_process(mbox);
126 otx2_cgx_rxtx_stop(struct otx2_eth_dev *dev)
128 struct otx2_mbox *mbox = dev->mbox;
130 if (otx2_dev_is_vf(dev))
133 otx2_mbox_alloc_msg_cgx_stop_rxtx(mbox);
135 return otx2_mbox_process(mbox);
139 nix_rx_queue_reset(struct otx2_eth_rxq *rxq)
145 static inline uint32_t
146 nix_qsize_to_val(enum nix_q_size_e qsize)
148 return (16UL << (qsize * 2));
151 static inline enum nix_q_size_e
152 nix_qsize_clampup_get(struct otx2_eth_dev *dev, uint32_t val)
156 if (otx2_ethdev_fixup_is_min_4k_q(dev))
161 for (; i < nix_q_size_max; i++)
162 if (val <= nix_qsize_to_val(i))
165 if (i >= nix_q_size_max)
166 i = nix_q_size_max - 1;
172 nix_cq_rq_init(struct rte_eth_dev *eth_dev, struct otx2_eth_dev *dev,
173 uint16_t qid, struct otx2_eth_rxq *rxq, struct rte_mempool *mp)
175 struct otx2_mbox *mbox = dev->mbox;
176 const struct rte_memzone *rz;
177 uint32_t ring_size, cq_size;
178 struct nix_aq_enq_req *aq;
183 ring_size = cq_size * NIX_CQ_ENTRY_SZ;
184 rz = rte_eth_dma_zone_reserve(eth_dev, "cq", qid, ring_size,
185 NIX_CQ_ALIGN, dev->node);
187 otx2_err("Failed to allocate mem for cq hw ring");
191 memset(rz->addr, 0, rz->len);
192 rxq->desc = (uintptr_t)rz->addr;
193 rxq->qmask = cq_size - 1;
195 aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
197 aq->ctype = NIX_AQ_CTYPE_CQ;
198 aq->op = NIX_AQ_INSTOP_INIT;
202 aq->cq.qsize = rxq->qsize;
203 aq->cq.base = rz->iova;
204 aq->cq.avg_level = 0xff;
205 aq->cq.cq_err_int_ena = BIT(NIX_CQERRINT_CQE_FAULT);
206 aq->cq.cq_err_int_ena |= BIT(NIX_CQERRINT_DOOR_ERR);
208 /* TX pause frames enable flowctrl on RX side */
209 if (dev->fc_info.tx_pause) {
210 /* Single bpid is allocated for all rx channels for now */
211 aq->cq.bpid = dev->fc_info.bpid[0];
212 aq->cq.bp = NIX_CQ_BP_LEVEL;
216 /* Many to one reduction */
217 aq->cq.qint_idx = qid % dev->qints;
219 if (otx2_ethdev_fixup_is_limit_cq_full(dev)) {
220 uint16_t min_rx_drop;
221 const float rx_cq_skid = 1024 * 256;
223 min_rx_drop = ceil(rx_cq_skid / (float)cq_size);
224 aq->cq.drop = min_rx_drop;
228 rc = otx2_mbox_process(mbox);
230 otx2_err("Failed to init cq context");
234 aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
236 aq->ctype = NIX_AQ_CTYPE_RQ;
237 aq->op = NIX_AQ_INSTOP_INIT;
240 aq->rq.cq = qid; /* RQ to CQ 1:1 mapped */
242 aq->rq.lpb_aura = npa_lf_aura_handle_to_aura(mp->pool_id);
243 first_skip = (sizeof(struct rte_mbuf));
244 first_skip += RTE_PKTMBUF_HEADROOM;
245 first_skip += rte_pktmbuf_priv_size(mp);
246 rxq->data_off = first_skip;
248 first_skip /= 8; /* Expressed in number of dwords */
249 aq->rq.first_skip = first_skip;
250 aq->rq.later_skip = (sizeof(struct rte_mbuf) / 8);
251 aq->rq.flow_tagw = 32; /* 32-bits */
252 aq->rq.lpb_sizem1 = rte_pktmbuf_data_room_size(mp);
253 aq->rq.lpb_sizem1 += rte_pktmbuf_priv_size(mp);
254 aq->rq.lpb_sizem1 += sizeof(struct rte_mbuf);
255 aq->rq.lpb_sizem1 /= 8;
256 aq->rq.lpb_sizem1 -= 1; /* Expressed in size minus one */
258 aq->rq.pb_caching = 0x2; /* First cache aligned block to LLC */
259 aq->rq.xqe_imm_size = 0; /* No pkt data copy to CQE */
260 aq->rq.rq_int_ena = 0;
261 /* Many to one reduction */
262 aq->rq.qint_idx = qid % dev->qints;
264 if (otx2_ethdev_fixup_is_limit_cq_full(dev))
265 aq->rq.xqe_drop_ena = 1;
267 rc = otx2_mbox_process(mbox);
269 otx2_err("Failed to init rq context");
279 nix_rq_enb_dis(struct rte_eth_dev *eth_dev,
280 struct otx2_eth_rxq *rxq, const bool enb)
282 struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
283 struct otx2_mbox *mbox = dev->mbox;
284 struct nix_aq_enq_req *aq;
286 /* Pkts will be dropped silently if RQ is disabled */
287 aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
289 aq->ctype = NIX_AQ_CTYPE_RQ;
290 aq->op = NIX_AQ_INSTOP_WRITE;
293 aq->rq_mask.ena = ~(aq->rq_mask.ena);
295 return otx2_mbox_process(mbox);
299 nix_cq_rq_uninit(struct rte_eth_dev *eth_dev, struct otx2_eth_rxq *rxq)
301 struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
302 struct otx2_mbox *mbox = dev->mbox;
303 struct nix_aq_enq_req *aq;
306 /* RQ is already disabled */
308 aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
310 aq->ctype = NIX_AQ_CTYPE_CQ;
311 aq->op = NIX_AQ_INSTOP_WRITE;
314 aq->cq_mask.ena = ~(aq->cq_mask.ena);
316 rc = otx2_mbox_process(mbox);
318 otx2_err("Failed to disable cq context");
326 nix_get_data_off(struct otx2_eth_dev *dev)
328 return otx2_ethdev_is_ptp_en(dev) ? NIX_TIMESYNC_RX_OFFSET : 0;
332 otx2_nix_rxq_mbuf_setup(struct otx2_eth_dev *dev, uint16_t port_id)
334 struct rte_mbuf mb_def;
337 RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, data_off) % 8 != 0);
338 RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, refcnt) -
339 offsetof(struct rte_mbuf, data_off) != 2);
340 RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, nb_segs) -
341 offsetof(struct rte_mbuf, data_off) != 4);
342 RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, port) -
343 offsetof(struct rte_mbuf, data_off) != 6);
345 mb_def.data_off = RTE_PKTMBUF_HEADROOM + nix_get_data_off(dev);
346 mb_def.port = port_id;
347 rte_mbuf_refcnt_set(&mb_def, 1);
349 /* Prevent compiler reordering: rearm_data covers previous fields */
350 rte_compiler_barrier();
351 tmp = (uint64_t *)&mb_def.rearm_data;
357 otx2_nix_rx_queue_release(void *rx_queue)
359 struct otx2_eth_rxq *rxq = rx_queue;
364 otx2_nix_dbg("Releasing rxq %u", rxq->rq);
365 nix_cq_rq_uninit(rxq->eth_dev, rxq);
370 otx2_nix_rx_queue_setup(struct rte_eth_dev *eth_dev, uint16_t rq,
371 uint16_t nb_desc, unsigned int socket,
372 const struct rte_eth_rxconf *rx_conf,
373 struct rte_mempool *mp)
375 struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
376 struct rte_mempool_ops *ops;
377 struct otx2_eth_rxq *rxq;
378 const char *platform_ops;
379 enum nix_q_size_e qsize;
385 /* Compile time check to make sure all fast path elements in a CL */
386 RTE_BUILD_BUG_ON(offsetof(struct otx2_eth_rxq, slow_path_start) >= 128);
389 if (rx_conf->rx_deferred_start == 1) {
390 otx2_err("Deferred Rx start is not supported");
394 platform_ops = rte_mbuf_platform_mempool_ops();
395 /* This driver needs octeontx2_npa mempool ops to work */
396 ops = rte_mempool_get_ops(mp->ops_index);
397 if (strncmp(ops->name, platform_ops, RTE_MEMPOOL_OPS_NAMESIZE)) {
398 otx2_err("mempool ops should be of octeontx2_npa type");
402 if (mp->pool_id == 0) {
403 otx2_err("Invalid pool_id");
407 /* Free memory prior to re-allocation if needed */
408 if (eth_dev->data->rx_queues[rq] != NULL) {
409 otx2_nix_dbg("Freeing memory prior to re-allocation %d", rq);
410 otx2_nix_rx_queue_release(eth_dev->data->rx_queues[rq]);
411 eth_dev->data->rx_queues[rq] = NULL;
414 offloads = rx_conf->offloads | eth_dev->data->dev_conf.rxmode.offloads;
415 dev->rx_offloads |= offloads;
417 /* Find the CQ queue size */
418 qsize = nix_qsize_clampup_get(dev, nb_desc);
419 /* Allocate rxq memory */
420 rxq = rte_zmalloc_socket("otx2 rxq", sizeof(*rxq), OTX2_ALIGN, socket);
422 otx2_err("Failed to allocate rq=%d", rq);
427 rxq->eth_dev = eth_dev;
429 rxq->cq_door = dev->base + NIX_LF_CQ_OP_DOOR;
430 rxq->cq_status = (int64_t *)(dev->base + NIX_LF_CQ_OP_STATUS);
431 rxq->wdata = (uint64_t)rq << 32;
432 rxq->aura = npa_lf_aura_handle_to_aura(mp->pool_id);
433 rxq->mbuf_initializer = otx2_nix_rxq_mbuf_setup(dev,
434 eth_dev->data->port_id);
435 rxq->offloads = offloads;
437 rxq->qlen = nix_qsize_to_val(qsize);
439 rxq->lookup_mem = otx2_nix_fastpath_lookup_mem_get();
440 rxq->tstamp = &dev->tstamp;
442 /* Alloc completion queue */
443 rc = nix_cq_rq_init(eth_dev, dev, rq, rxq, mp);
445 otx2_err("Failed to allocate rxq=%u", rq);
449 rxq->qconf.socket_id = socket;
450 rxq->qconf.nb_desc = nb_desc;
451 rxq->qconf.mempool = mp;
452 memcpy(&rxq->qconf.conf.rx, rx_conf, sizeof(struct rte_eth_rxconf));
454 nix_rx_queue_reset(rxq);
455 otx2_nix_dbg("rq=%d pool=%s qsize=%d nb_desc=%d->%d",
456 rq, mp->name, qsize, nb_desc, rxq->qlen);
458 eth_dev->data->rx_queues[rq] = rxq;
459 eth_dev->data->rx_queue_state[rq] = RTE_ETH_QUEUE_STATE_STOPPED;
463 otx2_nix_rx_queue_release(rxq);
468 static inline uint8_t
469 nix_sq_max_sqe_sz(struct otx2_eth_txq *txq)
472 * Maximum three segments can be supported with W8, Choose
473 * NIX_MAXSQESZ_W16 for multi segment offload.
475 if (txq->offloads & DEV_TX_OFFLOAD_MULTI_SEGS)
476 return NIX_MAXSQESZ_W16;
478 return NIX_MAXSQESZ_W8;
482 nix_sq_init(struct otx2_eth_txq *txq)
484 struct otx2_eth_dev *dev = txq->dev;
485 struct otx2_mbox *mbox = dev->mbox;
486 struct nix_aq_enq_req *sq;
491 if (txq->sqb_pool->pool_id == 0)
494 rc = otx2_nix_tm_get_leaf_data(dev, txq->sq, &rr_quantum, &smq);
496 otx2_err("Failed to get sq->smq(leaf node), rc=%d", rc);
500 sq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
502 sq->ctype = NIX_AQ_CTYPE_SQ;
503 sq->op = NIX_AQ_INSTOP_INIT;
504 sq->sq.max_sqe_size = nix_sq_max_sqe_sz(txq);
507 sq->sq.smq_rr_quantum = rr_quantum;
508 sq->sq.default_chan = dev->tx_chan_base;
509 sq->sq.sqe_stype = NIX_STYPE_STF;
511 if (sq->sq.max_sqe_size == NIX_MAXSQESZ_W8)
512 sq->sq.sqe_stype = NIX_STYPE_STP;
514 npa_lf_aura_handle_to_aura(txq->sqb_pool->pool_id);
515 sq->sq.sq_int_ena = BIT(NIX_SQINT_LMT_ERR);
516 sq->sq.sq_int_ena |= BIT(NIX_SQINT_SQB_ALLOC_FAIL);
517 sq->sq.sq_int_ena |= BIT(NIX_SQINT_SEND_ERR);
518 sq->sq.sq_int_ena |= BIT(NIX_SQINT_MNQ_ERR);
520 /* Many to one reduction */
521 sq->sq.qint_idx = txq->sq % dev->qints;
523 return otx2_mbox_process(mbox);
527 nix_sq_uninit(struct otx2_eth_txq *txq)
529 struct otx2_eth_dev *dev = txq->dev;
530 struct otx2_mbox *mbox = dev->mbox;
531 struct ndc_sync_op *ndc_req;
532 struct nix_aq_enq_rsp *rsp;
533 struct nix_aq_enq_req *aq;
534 uint16_t sqes_per_sqb;
538 otx2_nix_dbg("Cleaning up sq %u", txq->sq);
540 aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
542 aq->ctype = NIX_AQ_CTYPE_SQ;
543 aq->op = NIX_AQ_INSTOP_READ;
545 rc = otx2_mbox_process_msg(mbox, (void *)&rsp);
549 /* Check if sq is already cleaned up */
554 aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
556 aq->ctype = NIX_AQ_CTYPE_SQ;
557 aq->op = NIX_AQ_INSTOP_WRITE;
559 aq->sq_mask.ena = ~aq->sq_mask.ena;
562 rc = otx2_mbox_process(mbox);
566 /* Read SQ and free sqb's */
567 aq = otx2_mbox_alloc_msg_nix_aq_enq(mbox);
569 aq->ctype = NIX_AQ_CTYPE_SQ;
570 aq->op = NIX_AQ_INSTOP_READ;
572 rc = otx2_mbox_process_msg(mbox, (void *)&rsp);
577 otx2_err("SQ has pending sqe's");
579 count = aq->sq.sqb_count;
580 sqes_per_sqb = 1 << txq->sqes_per_sqb_log2;
581 /* Free SQB's that are used */
582 sqb_buf = (void *)rsp->sq.head_sqb;
586 next_sqb = *(void **)((uintptr_t)sqb_buf + ((sqes_per_sqb - 1) *
587 nix_sq_max_sqe_sz(txq)));
588 npa_lf_aura_op_free(txq->sqb_pool->pool_id, 1,
594 /* Free next to use sqb */
595 if (rsp->sq.next_sqb)
596 npa_lf_aura_op_free(txq->sqb_pool->pool_id, 1,
599 /* Sync NDC-NIX-TX for LF */
600 ndc_req = otx2_mbox_alloc_msg_ndc_sync_op(mbox);
601 ndc_req->nix_lf_tx_sync = 1;
602 rc = otx2_mbox_process(mbox);
604 otx2_err("Error on NDC-NIX-TX LF sync, rc %d", rc);
610 nix_sqb_aura_limit_cfg(struct rte_mempool *mp, uint16_t nb_sqb_bufs)
612 struct otx2_npa_lf *npa_lf = otx2_intra_dev_get_cfg()->npa_lf;
613 struct npa_aq_enq_req *aura_req;
615 aura_req = otx2_mbox_alloc_msg_npa_aq_enq(npa_lf->mbox);
616 aura_req->aura_id = npa_lf_aura_handle_to_aura(mp->pool_id);
617 aura_req->ctype = NPA_AQ_CTYPE_AURA;
618 aura_req->op = NPA_AQ_INSTOP_WRITE;
620 aura_req->aura.limit = nb_sqb_bufs;
621 aura_req->aura_mask.limit = ~(aura_req->aura_mask.limit);
623 return otx2_mbox_process(npa_lf->mbox);
627 nix_alloc_sqb_pool(int port, struct otx2_eth_txq *txq, uint16_t nb_desc)
629 struct otx2_eth_dev *dev = txq->dev;
630 uint16_t sqes_per_sqb, nb_sqb_bufs;
631 char name[RTE_MEMPOOL_NAMESIZE];
632 struct rte_mempool_objsz sz;
633 struct npa_aura_s *aura;
634 uint32_t tmp, blk_sz;
636 aura = (struct npa_aura_s *)((uintptr_t)txq->fc_mem + OTX2_ALIGN);
637 snprintf(name, sizeof(name), "otx2_sqb_pool_%d_%d", port, txq->sq);
638 blk_sz = dev->sqb_size;
640 if (nix_sq_max_sqe_sz(txq) == NIX_MAXSQESZ_W16)
641 sqes_per_sqb = (dev->sqb_size / 8) / 16;
643 sqes_per_sqb = (dev->sqb_size / 8) / 8;
645 nb_sqb_bufs = nb_desc / sqes_per_sqb;
646 /* Clamp up to devarg passed SQB count */
647 nb_sqb_bufs = RTE_MIN(dev->max_sqb_count, RTE_MAX(NIX_MIN_SQB,
648 nb_sqb_bufs + NIX_SQB_LIST_SPACE));
650 txq->sqb_pool = rte_mempool_create_empty(name, NIX_MAX_SQB, blk_sz,
652 MEMPOOL_F_NO_SPREAD);
653 txq->nb_sqb_bufs = nb_sqb_bufs;
654 txq->sqes_per_sqb_log2 = (uint16_t)rte_log2_u32(sqes_per_sqb);
655 txq->nb_sqb_bufs_adj = nb_sqb_bufs -
656 RTE_ALIGN_MUL_CEIL(nb_sqb_bufs, sqes_per_sqb) / sqes_per_sqb;
657 txq->nb_sqb_bufs_adj =
658 (NIX_SQB_LOWER_THRESH * txq->nb_sqb_bufs_adj) / 100;
660 if (txq->sqb_pool == NULL) {
661 otx2_err("Failed to allocate sqe mempool");
665 memset(aura, 0, sizeof(*aura));
667 aura->fc_addr = txq->fc_iova;
668 aura->fc_hyst_bits = 0; /* Store count on all updates */
669 if (rte_mempool_set_ops_byname(txq->sqb_pool, "octeontx2_npa", aura)) {
670 otx2_err("Failed to set ops for sqe mempool");
673 if (rte_mempool_populate_default(txq->sqb_pool) < 0) {
674 otx2_err("Failed to populate sqe mempool");
678 tmp = rte_mempool_calc_obj_size(blk_sz, MEMPOOL_F_NO_SPREAD, &sz);
679 if (dev->sqb_size != sz.elt_size) {
680 otx2_err("sqe pool block size is not expected %d != %d",
685 nix_sqb_aura_limit_cfg(txq->sqb_pool, txq->nb_sqb_bufs);
693 otx2_nix_form_default_desc(struct otx2_eth_txq *txq)
695 struct nix_send_ext_s *send_hdr_ext;
696 struct nix_send_hdr_s *send_hdr;
697 struct nix_send_mem_s *send_mem;
698 union nix_send_sg_s *sg;
700 /* Initialize the fields based on basic single segment packet */
701 memset(&txq->cmd, 0, sizeof(txq->cmd));
703 if (txq->dev->tx_offload_flags & NIX_TX_NEED_EXT_HDR) {
704 send_hdr = (struct nix_send_hdr_s *)&txq->cmd[0];
705 /* 2(HDR) + 2(EXT_HDR) + 1(SG) + 1(IOVA) = 6/2 - 1 = 2 */
706 send_hdr->w0.sizem1 = 2;
708 send_hdr_ext = (struct nix_send_ext_s *)&txq->cmd[2];
709 send_hdr_ext->w0.subdc = NIX_SUBDC_EXT;
710 if (txq->dev->tx_offload_flags & NIX_TX_OFFLOAD_TSTAMP_F) {
711 /* Default: one seg packet would have:
712 * 2(HDR) + 2(EXT) + 1(SG) + 1(IOVA) + 2(MEM)
715 send_hdr->w0.sizem1 = 3;
716 send_hdr_ext->w0.tstmp = 1;
718 /* To calculate the offset for send_mem,
719 * send_hdr->w0.sizem1 * 2
721 send_mem = (struct nix_send_mem_s *)(txq->cmd +
722 (send_hdr->w0.sizem1 << 1));
723 send_mem->subdc = NIX_SUBDC_MEM;
725 send_mem->wmem = 0x1;
726 send_mem->alg = NIX_SENDMEMALG_SETTSTMP;
727 send_mem->addr = txq->dev->tstamp.tx_tstamp_iova;
729 sg = (union nix_send_sg_s *)&txq->cmd[4];
731 send_hdr = (struct nix_send_hdr_s *)&txq->cmd[0];
732 /* 2(HDR) + 1(SG) + 1(IOVA) = 4/2 - 1 = 1 */
733 send_hdr->w0.sizem1 = 1;
734 sg = (union nix_send_sg_s *)&txq->cmd[2];
737 send_hdr->w0.sq = txq->sq;
738 sg->subdc = NIX_SUBDC_SG;
740 sg->ld_type = NIX_SENDLDTYPE_LDD;
746 otx2_nix_tx_queue_release(void *_txq)
748 struct otx2_eth_txq *txq = _txq;
749 struct rte_eth_dev *eth_dev;
754 eth_dev = txq->dev->eth_dev;
756 otx2_nix_dbg("Releasing txq %u", txq->sq);
758 /* Flush and disable tm */
759 otx2_nix_tm_sw_xoff(txq, eth_dev->data->dev_started);
761 /* Free sqb's and disable sq */
765 rte_mempool_free(txq->sqb_pool);
766 txq->sqb_pool = NULL;
773 otx2_nix_tx_queue_setup(struct rte_eth_dev *eth_dev, uint16_t sq,
774 uint16_t nb_desc, unsigned int socket_id,
775 const struct rte_eth_txconf *tx_conf)
777 struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
778 const struct rte_memzone *fc;
779 struct otx2_eth_txq *txq;
785 /* Compile time check to make sure all fast path elements in a CL */
786 RTE_BUILD_BUG_ON(offsetof(struct otx2_eth_txq, slow_path_start) >= 128);
788 if (tx_conf->tx_deferred_start) {
789 otx2_err("Tx deferred start is not supported");
793 /* Free memory prior to re-allocation if needed. */
794 if (eth_dev->data->tx_queues[sq] != NULL) {
795 otx2_nix_dbg("Freeing memory prior to re-allocation %d", sq);
796 otx2_nix_tx_queue_release(eth_dev->data->tx_queues[sq]);
797 eth_dev->data->tx_queues[sq] = NULL;
800 /* Find the expected offloads for this queue */
801 offloads = tx_conf->offloads | eth_dev->data->dev_conf.txmode.offloads;
803 /* Allocating tx queue data structure */
804 txq = rte_zmalloc_socket("otx2_ethdev TX queue", sizeof(*txq),
805 OTX2_ALIGN, socket_id);
807 otx2_err("Failed to alloc txq=%d", sq);
813 txq->sqb_pool = NULL;
814 txq->offloads = offloads;
815 dev->tx_offloads |= offloads;
818 * Allocate memory for flow control updates from HW.
819 * Alloc one cache line, so that fits all FC_STYPE modes.
821 fc = rte_eth_dma_zone_reserve(eth_dev, "fcmem", sq,
822 OTX2_ALIGN + sizeof(struct npa_aura_s),
823 OTX2_ALIGN, dev->node);
825 otx2_err("Failed to allocate mem for fcmem");
829 txq->fc_iova = fc->iova;
830 txq->fc_mem = fc->addr;
832 /* Initialize the aura sqb pool */
833 rc = nix_alloc_sqb_pool(eth_dev->data->port_id, txq, nb_desc);
835 otx2_err("Failed to alloc sqe pool rc=%d", rc);
839 /* Initialize the SQ */
840 rc = nix_sq_init(txq);
842 otx2_err("Failed to init sq=%d context", sq);
846 txq->fc_cache_pkts = 0;
847 txq->io_addr = dev->base + NIX_LF_OP_SENDX(0);
848 /* Evenly distribute LMT slot for each sq */
849 txq->lmt_addr = (void *)(dev->lmt_addr + ((sq & LMT_SLOT_MASK) << 12));
851 txq->qconf.socket_id = socket_id;
852 txq->qconf.nb_desc = nb_desc;
853 memcpy(&txq->qconf.conf.tx, tx_conf, sizeof(struct rte_eth_txconf));
855 otx2_nix_form_default_desc(txq);
857 otx2_nix_dbg("sq=%d fc=%p offload=0x%" PRIx64 " sqb=0x%" PRIx64 ""
858 " lmt_addr=%p nb_sqb_bufs=%d sqes_per_sqb_log2=%d", sq,
859 fc->addr, offloads, txq->sqb_pool->pool_id, txq->lmt_addr,
860 txq->nb_sqb_bufs, txq->sqes_per_sqb_log2);
861 eth_dev->data->tx_queues[sq] = txq;
862 eth_dev->data->tx_queue_state[sq] = RTE_ETH_QUEUE_STATE_STOPPED;
866 otx2_nix_tx_queue_release(txq);
872 nix_store_queue_cfg_and_then_release(struct rte_eth_dev *eth_dev)
874 struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
875 struct otx2_eth_qconf *tx_qconf = NULL;
876 struct otx2_eth_qconf *rx_qconf = NULL;
877 struct otx2_eth_txq **txq;
878 struct otx2_eth_rxq **rxq;
879 int i, nb_rxq, nb_txq;
881 nb_rxq = RTE_MIN(dev->configured_nb_rx_qs, eth_dev->data->nb_rx_queues);
882 nb_txq = RTE_MIN(dev->configured_nb_tx_qs, eth_dev->data->nb_tx_queues);
884 tx_qconf = malloc(nb_txq * sizeof(*tx_qconf));
885 if (tx_qconf == NULL) {
886 otx2_err("Failed to allocate memory for tx_qconf");
890 rx_qconf = malloc(nb_rxq * sizeof(*rx_qconf));
891 if (rx_qconf == NULL) {
892 otx2_err("Failed to allocate memory for rx_qconf");
896 txq = (struct otx2_eth_txq **)eth_dev->data->tx_queues;
897 for (i = 0; i < nb_txq; i++) {
898 if (txq[i] == NULL) {
899 otx2_err("txq[%d] is already released", i);
902 memcpy(&tx_qconf[i], &txq[i]->qconf, sizeof(*tx_qconf));
903 otx2_nix_tx_queue_release(txq[i]);
904 eth_dev->data->tx_queues[i] = NULL;
907 rxq = (struct otx2_eth_rxq **)eth_dev->data->rx_queues;
908 for (i = 0; i < nb_rxq; i++) {
909 if (rxq[i] == NULL) {
910 otx2_err("rxq[%d] is already released", i);
913 memcpy(&rx_qconf[i], &rxq[i]->qconf, sizeof(*rx_qconf));
914 otx2_nix_rx_queue_release(rxq[i]);
915 eth_dev->data->rx_queues[i] = NULL;
918 dev->tx_qconf = tx_qconf;
919 dev->rx_qconf = rx_qconf;
932 nix_restore_queue_cfg(struct rte_eth_dev *eth_dev)
934 struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
935 struct otx2_eth_qconf *tx_qconf = dev->tx_qconf;
936 struct otx2_eth_qconf *rx_qconf = dev->rx_qconf;
937 struct otx2_eth_txq **txq;
938 struct otx2_eth_rxq **rxq;
939 int rc, i, nb_rxq, nb_txq;
941 nb_rxq = RTE_MIN(dev->configured_nb_rx_qs, eth_dev->data->nb_rx_queues);
942 nb_txq = RTE_MIN(dev->configured_nb_tx_qs, eth_dev->data->nb_tx_queues);
945 /* Setup tx & rx queues with previous configuration so
946 * that the queues can be functional in cases like ports
947 * are started without re configuring queues.
949 * Usual re config sequence is like below:
955 * queue_configure() {
962 * In some application's control path, queue_configure() would
963 * NOT be invoked for TXQs/RXQs in port_configure().
964 * In such cases, queues can be functional after start as the
965 * queues are already setup in port_configure().
967 for (i = 0; i < nb_txq; i++) {
968 rc = otx2_nix_tx_queue_setup(eth_dev, i, tx_qconf[i].nb_desc,
969 tx_qconf[i].socket_id,
970 &tx_qconf[i].conf.tx);
972 otx2_err("Failed to setup tx queue rc=%d", rc);
973 txq = (struct otx2_eth_txq **)eth_dev->data->tx_queues;
974 for (i -= 1; i >= 0; i--)
975 otx2_nix_tx_queue_release(txq[i]);
980 free(tx_qconf); tx_qconf = NULL;
982 for (i = 0; i < nb_rxq; i++) {
983 rc = otx2_nix_rx_queue_setup(eth_dev, i, rx_qconf[i].nb_desc,
984 rx_qconf[i].socket_id,
985 &rx_qconf[i].conf.rx,
986 rx_qconf[i].mempool);
988 otx2_err("Failed to setup rx queue rc=%d", rc);
989 rxq = (struct otx2_eth_rxq **)eth_dev->data->rx_queues;
990 for (i -= 1; i >= 0; i--)
991 otx2_nix_rx_queue_release(rxq[i]);
992 goto release_tx_queues;
996 free(rx_qconf); rx_qconf = NULL;
1001 txq = (struct otx2_eth_txq **)eth_dev->data->tx_queues;
1002 for (i = 0; i < eth_dev->data->nb_tx_queues; i++)
1003 otx2_nix_tx_queue_release(txq[i]);
1014 nix_eth_nop_burst(void *queue, struct rte_mbuf **mbufs, uint16_t pkts)
1016 RTE_SET_USED(queue);
1017 RTE_SET_USED(mbufs);
1024 nix_set_nop_rxtx_function(struct rte_eth_dev *eth_dev)
1026 /* These dummy functions are required for supporting
1027 * some applications which reconfigure queues without
1028 * stopping tx burst and rx burst threads(eg kni app)
1029 * When the queues context is saved, txq/rxqs are released
1030 * which caused app crash since rx/tx burst is still
1031 * on different lcores
1033 eth_dev->tx_pkt_burst = nix_eth_nop_burst;
1034 eth_dev->rx_pkt_burst = nix_eth_nop_burst;
1039 otx2_nix_configure(struct rte_eth_dev *eth_dev)
1041 struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
1042 struct rte_eth_dev_data *data = eth_dev->data;
1043 struct rte_eth_conf *conf = &data->dev_conf;
1044 struct rte_eth_rxmode *rxmode = &conf->rxmode;
1045 struct rte_eth_txmode *txmode = &conf->txmode;
1046 char ea_fmt[RTE_ETHER_ADDR_FMT_SIZE];
1047 struct rte_ether_addr *ea;
1048 uint8_t nb_rxq, nb_txq;
1054 if (rte_eal_has_hugepages() == 0) {
1055 otx2_err("Huge page is not configured");
1059 if (rte_eal_iova_mode() != RTE_IOVA_VA) {
1060 otx2_err("iova mode should be va");
1064 if (conf->link_speeds & ETH_LINK_SPEED_FIXED) {
1065 otx2_err("Setting link speed/duplex not supported");
1069 if (conf->dcb_capability_en == 1) {
1070 otx2_err("dcb enable is not supported");
1074 if (conf->fdir_conf.mode != RTE_FDIR_MODE_NONE) {
1075 otx2_err("Flow director is not supported");
1079 if (rxmode->mq_mode != ETH_MQ_RX_NONE &&
1080 rxmode->mq_mode != ETH_MQ_RX_RSS) {
1081 otx2_err("Unsupported mq rx mode %d", rxmode->mq_mode);
1085 if (txmode->mq_mode != ETH_MQ_TX_NONE) {
1086 otx2_err("Unsupported mq tx mode %d", txmode->mq_mode);
1090 /* Free the resources allocated from the previous configure */
1091 if (dev->configured == 1) {
1092 otx2_nix_rxchan_bpid_cfg(eth_dev, false);
1093 otx2_nix_vlan_fini(eth_dev);
1094 oxt2_nix_unregister_queue_irqs(eth_dev);
1095 nix_set_nop_rxtx_function(eth_dev);
1096 rc = nix_store_queue_cfg_and_then_release(eth_dev);
1099 otx2_nix_tm_fini(eth_dev);
1103 if (otx2_dev_is_A0(dev) &&
1104 (txmode->offloads & DEV_TX_OFFLOAD_SCTP_CKSUM) &&
1105 ((txmode->offloads & DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM) ||
1106 (txmode->offloads & DEV_TX_OFFLOAD_OUTER_UDP_CKSUM))) {
1107 otx2_err("Outer IP and SCTP checksum unsupported");
1112 dev->rx_offloads = rxmode->offloads;
1113 dev->tx_offloads = txmode->offloads;
1114 dev->rss_info.rss_grps = NIX_RSS_GRPS;
1116 nb_rxq = RTE_MAX(data->nb_rx_queues, 1);
1117 nb_txq = RTE_MAX(data->nb_tx_queues, 1);
1119 /* Alloc a nix lf */
1120 rc = nix_lf_alloc(dev, nb_rxq, nb_txq);
1122 otx2_err("Failed to init nix_lf rc=%d", rc);
1127 rc = otx2_nix_rss_config(eth_dev);
1129 otx2_err("Failed to configure rss rc=%d", rc);
1133 /* Init the default TM scheduler hierarchy */
1134 rc = otx2_nix_tm_init_default(eth_dev);
1136 otx2_err("Failed to init traffic manager rc=%d", rc);
1140 rc = otx2_nix_vlan_offload_init(eth_dev);
1142 otx2_err("Failed to init vlan offload rc=%d", rc);
1146 /* Register queue IRQs */
1147 rc = oxt2_nix_register_queue_irqs(eth_dev);
1149 otx2_err("Failed to register queue interrupts rc=%d", rc);
1153 rc = otx2_nix_rxchan_bpid_cfg(eth_dev, true);
1155 otx2_err("Failed to configure nix rx chan bpid cfg rc=%d", rc);
1159 /* Enable PTP if it was requested by the app or if it is already
1160 * enabled in PF owning this VF
1162 memset(&dev->tstamp, 0, sizeof(struct otx2_timesync_info));
1163 if ((dev->rx_offloads & DEV_RX_OFFLOAD_TIMESTAMP) ||
1164 otx2_ethdev_is_ptp_en(dev))
1165 otx2_nix_timesync_enable(eth_dev);
1167 otx2_nix_timesync_disable(eth_dev);
1170 * Restore queue config when reconfigure followed by
1171 * reconfigure and no queue configure invoked from application case.
1173 if (dev->configured == 1) {
1174 rc = nix_restore_queue_cfg(eth_dev);
1179 /* Update the mac address */
1180 ea = eth_dev->data->mac_addrs;
1181 memcpy(ea, dev->mac_addr, RTE_ETHER_ADDR_LEN);
1182 if (rte_is_zero_ether_addr(ea))
1183 rte_eth_random_addr((uint8_t *)ea);
1185 rte_ether_format_addr(ea_fmt, RTE_ETHER_ADDR_FMT_SIZE, ea);
1187 otx2_nix_dbg("Configured port%d mac=%s nb_rxq=%d nb_txq=%d"
1188 " rx_offloads=0x%" PRIx64 " tx_offloads=0x%" PRIx64 ""
1189 " rx_flags=0x%x tx_flags=0x%x",
1190 eth_dev->data->port_id, ea_fmt, nb_rxq,
1191 nb_txq, dev->rx_offloads, dev->tx_offloads,
1192 dev->rx_offload_flags, dev->tx_offload_flags);
1195 dev->configured = 1;
1196 dev->configured_nb_rx_qs = data->nb_rx_queues;
1197 dev->configured_nb_tx_qs = data->nb_tx_queues;
1201 rc = nix_lf_free(dev);
1207 otx2_nix_tx_queue_start(struct rte_eth_dev *eth_dev, uint16_t qidx)
1209 struct rte_eth_dev_data *data = eth_dev->data;
1210 struct otx2_eth_txq *txq;
1213 txq = eth_dev->data->tx_queues[qidx];
1215 if (data->tx_queue_state[qidx] == RTE_ETH_QUEUE_STATE_STARTED)
1218 rc = otx2_nix_sq_sqb_aura_fc(txq, true);
1220 otx2_err("Failed to enable sqb aura fc, txq=%u, rc=%d",
1225 data->tx_queue_state[qidx] = RTE_ETH_QUEUE_STATE_STARTED;
1232 otx2_nix_tx_queue_stop(struct rte_eth_dev *eth_dev, uint16_t qidx)
1234 struct rte_eth_dev_data *data = eth_dev->data;
1235 struct otx2_eth_txq *txq;
1238 txq = eth_dev->data->tx_queues[qidx];
1240 if (data->tx_queue_state[qidx] == RTE_ETH_QUEUE_STATE_STOPPED)
1243 txq->fc_cache_pkts = 0;
1245 rc = otx2_nix_sq_sqb_aura_fc(txq, false);
1247 otx2_err("Failed to disable sqb aura fc, txq=%u, rc=%d",
1252 data->tx_queue_state[qidx] = RTE_ETH_QUEUE_STATE_STOPPED;
1259 otx2_nix_rx_queue_start(struct rte_eth_dev *eth_dev, uint16_t qidx)
1261 struct otx2_eth_rxq *rxq = eth_dev->data->rx_queues[qidx];
1262 struct rte_eth_dev_data *data = eth_dev->data;
1265 if (data->rx_queue_state[qidx] == RTE_ETH_QUEUE_STATE_STARTED)
1268 rc = nix_rq_enb_dis(rxq->eth_dev, rxq, true);
1270 otx2_err("Failed to enable rxq=%u, rc=%d", qidx, rc);
1274 data->rx_queue_state[qidx] = RTE_ETH_QUEUE_STATE_STARTED;
1281 otx2_nix_rx_queue_stop(struct rte_eth_dev *eth_dev, uint16_t qidx)
1283 struct otx2_eth_rxq *rxq = eth_dev->data->rx_queues[qidx];
1284 struct rte_eth_dev_data *data = eth_dev->data;
1287 if (data->rx_queue_state[qidx] == RTE_ETH_QUEUE_STATE_STOPPED)
1290 rc = nix_rq_enb_dis(rxq->eth_dev, rxq, false);
1292 otx2_err("Failed to disable rxq=%u, rc=%d", qidx, rc);
1296 data->rx_queue_state[qidx] = RTE_ETH_QUEUE_STATE_STOPPED;
1302 /* Initialize and register driver with DPDK Application */
1303 static const struct eth_dev_ops otx2_eth_dev_ops = {
1304 .dev_infos_get = otx2_nix_info_get,
1305 .dev_configure = otx2_nix_configure,
1306 .link_update = otx2_nix_link_update,
1307 .tx_queue_setup = otx2_nix_tx_queue_setup,
1308 .tx_queue_release = otx2_nix_tx_queue_release,
1309 .rx_queue_setup = otx2_nix_rx_queue_setup,
1310 .rx_queue_release = otx2_nix_rx_queue_release,
1311 .tx_queue_start = otx2_nix_tx_queue_start,
1312 .tx_queue_stop = otx2_nix_tx_queue_stop,
1313 .rx_queue_start = otx2_nix_rx_queue_start,
1314 .rx_queue_stop = otx2_nix_rx_queue_stop,
1315 .dev_supported_ptypes_get = otx2_nix_supported_ptypes_get,
1316 .stats_get = otx2_nix_dev_stats_get,
1317 .stats_reset = otx2_nix_dev_stats_reset,
1318 .get_reg = otx2_nix_dev_get_reg,
1319 .mac_addr_add = otx2_nix_mac_addr_add,
1320 .mac_addr_remove = otx2_nix_mac_addr_del,
1321 .mac_addr_set = otx2_nix_mac_addr_set,
1322 .promiscuous_enable = otx2_nix_promisc_enable,
1323 .promiscuous_disable = otx2_nix_promisc_disable,
1324 .allmulticast_enable = otx2_nix_allmulticast_enable,
1325 .allmulticast_disable = otx2_nix_allmulticast_disable,
1326 .queue_stats_mapping_set = otx2_nix_queue_stats_mapping,
1327 .reta_update = otx2_nix_dev_reta_update,
1328 .reta_query = otx2_nix_dev_reta_query,
1329 .rss_hash_update = otx2_nix_rss_hash_update,
1330 .rss_hash_conf_get = otx2_nix_rss_hash_conf_get,
1331 .xstats_get = otx2_nix_xstats_get,
1332 .xstats_get_names = otx2_nix_xstats_get_names,
1333 .xstats_reset = otx2_nix_xstats_reset,
1334 .xstats_get_by_id = otx2_nix_xstats_get_by_id,
1335 .xstats_get_names_by_id = otx2_nix_xstats_get_names_by_id,
1336 .rxq_info_get = otx2_nix_rxq_info_get,
1337 .txq_info_get = otx2_nix_txq_info_get,
1338 .rx_queue_count = otx2_nix_rx_queue_count,
1339 .rx_descriptor_done = otx2_nix_rx_descriptor_done,
1340 .rx_descriptor_status = otx2_nix_rx_descriptor_status,
1341 .tx_done_cleanup = otx2_nix_tx_done_cleanup,
1342 .pool_ops_supported = otx2_nix_pool_ops_supported,
1343 .filter_ctrl = otx2_nix_dev_filter_ctrl,
1344 .get_module_info = otx2_nix_get_module_info,
1345 .get_module_eeprom = otx2_nix_get_module_eeprom,
1346 .fw_version_get = otx2_nix_fw_version_get,
1347 .flow_ctrl_get = otx2_nix_flow_ctrl_get,
1348 .flow_ctrl_set = otx2_nix_flow_ctrl_set,
1349 .timesync_enable = otx2_nix_timesync_enable,
1350 .timesync_disable = otx2_nix_timesync_disable,
1351 .timesync_read_rx_timestamp = otx2_nix_timesync_read_rx_timestamp,
1352 .timesync_read_tx_timestamp = otx2_nix_timesync_read_tx_timestamp,
1353 .timesync_adjust_time = otx2_nix_timesync_adjust_time,
1354 .timesync_read_time = otx2_nix_timesync_read_time,
1355 .timesync_write_time = otx2_nix_timesync_write_time,
1356 .vlan_offload_set = otx2_nix_vlan_offload_set,
1357 .vlan_filter_set = otx2_nix_vlan_filter_set,
1358 .vlan_strip_queue_set = otx2_nix_vlan_strip_queue_set,
1359 .vlan_tpid_set = otx2_nix_vlan_tpid_set,
1360 .vlan_pvid_set = otx2_nix_vlan_pvid_set,
1364 nix_lf_attach(struct otx2_eth_dev *dev)
1366 struct otx2_mbox *mbox = dev->mbox;
1367 struct rsrc_attach_req *req;
1369 /* Attach NIX(lf) */
1370 req = otx2_mbox_alloc_msg_attach_resources(mbox);
1374 return otx2_mbox_process(mbox);
1378 nix_lf_get_msix_offset(struct otx2_eth_dev *dev)
1380 struct otx2_mbox *mbox = dev->mbox;
1381 struct msix_offset_rsp *msix_rsp;
1384 /* Get NPA and NIX MSIX vector offsets */
1385 otx2_mbox_alloc_msg_msix_offset(mbox);
1387 rc = otx2_mbox_process_msg(mbox, (void *)&msix_rsp);
1389 dev->nix_msixoff = msix_rsp->nix_msixoff;
1395 otx2_eth_dev_lf_detach(struct otx2_mbox *mbox)
1397 struct rsrc_detach_req *req;
1399 req = otx2_mbox_alloc_msg_detach_resources(mbox);
1401 /* Detach all except npa lf */
1402 req->partial = true;
1409 return otx2_mbox_process(mbox);
1413 otx2_eth_dev_init(struct rte_eth_dev *eth_dev)
1415 struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
1416 struct rte_pci_device *pci_dev;
1417 int rc, max_entries;
1419 eth_dev->dev_ops = &otx2_eth_dev_ops;
1421 /* For secondary processes, the primary has done all the work */
1422 if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
1423 /* Setup callbacks for secondary process */
1424 otx2_eth_set_tx_function(eth_dev);
1425 otx2_eth_set_rx_function(eth_dev);
1429 pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
1431 rte_eth_copy_pci_info(eth_dev, pci_dev);
1432 eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
1434 /* Zero out everything after OTX2_DEV to allow proper dev_reset() */
1435 memset(&dev->otx2_eth_dev_data_start, 0, sizeof(*dev) -
1436 offsetof(struct otx2_eth_dev, otx2_eth_dev_data_start));
1438 /* Parse devargs string */
1439 rc = otx2_ethdev_parse_devargs(eth_dev->device->devargs, dev);
1441 otx2_err("Failed to parse devargs rc=%d", rc);
1445 if (!dev->mbox_active) {
1446 /* Initialize the base otx2_dev object
1447 * only if already present
1449 rc = otx2_dev_init(pci_dev, dev);
1451 otx2_err("Failed to initialize otx2_dev rc=%d", rc);
1455 /* Device generic callbacks */
1456 dev->ops = &otx2_dev_ops;
1457 dev->eth_dev = eth_dev;
1459 /* Grab the NPA LF if required */
1460 rc = otx2_npa_lf_init(pci_dev, dev);
1462 goto otx2_dev_uninit;
1464 dev->configured = 0;
1465 dev->drv_inited = true;
1466 dev->base = dev->bar2 + (RVU_BLOCK_ADDR_NIX0 << 20);
1467 dev->lmt_addr = dev->bar2 + (RVU_BLOCK_ADDR_LMT << 20);
1470 rc = nix_lf_attach(dev);
1472 goto otx2_npa_uninit;
1474 /* Get NIX MSIX offset */
1475 rc = nix_lf_get_msix_offset(dev);
1477 goto otx2_npa_uninit;
1479 /* Register LF irq handlers */
1480 rc = otx2_nix_register_irqs(eth_dev);
1484 /* Get maximum number of supported MAC entries */
1485 max_entries = otx2_cgx_mac_max_entries_get(dev);
1486 if (max_entries < 0) {
1487 otx2_err("Failed to get max entries for mac addr");
1489 goto unregister_irq;
1492 /* For VFs, returned max_entries will be 0. But to keep default MAC
1493 * address, one entry must be allocated. So setting up to 1.
1495 if (max_entries == 0)
1498 eth_dev->data->mac_addrs = rte_zmalloc("mac_addr", max_entries *
1499 RTE_ETHER_ADDR_LEN, 0);
1500 if (eth_dev->data->mac_addrs == NULL) {
1501 otx2_err("Failed to allocate memory for mac addr");
1503 goto unregister_irq;
1506 dev->max_mac_entries = max_entries;
1508 rc = otx2_nix_mac_addr_get(eth_dev, dev->mac_addr);
1510 goto free_mac_addrs;
1512 /* Update the mac address */
1513 memcpy(eth_dev->data->mac_addrs, dev->mac_addr, RTE_ETHER_ADDR_LEN);
1515 /* Also sync same MAC address to CGX table */
1516 otx2_cgx_mac_addr_set(eth_dev, ð_dev->data->mac_addrs[0]);
1518 /* Initialize the tm data structures */
1519 otx2_nix_tm_conf_init(eth_dev);
1521 dev->tx_offload_capa = nix_get_tx_offload_capa(dev);
1522 dev->rx_offload_capa = nix_get_rx_offload_capa(dev);
1524 if (otx2_dev_is_A0(dev)) {
1525 dev->hwcap |= OTX2_FIXUP_F_MIN_4K_Q;
1526 dev->hwcap |= OTX2_FIXUP_F_LIMIT_CQ_FULL;
1529 /* Initialize rte-flow */
1530 rc = otx2_flow_init(dev);
1532 goto free_mac_addrs;
1534 otx2_nix_dbg("Port=%d pf=%d vf=%d ver=%s msix_off=%d hwcap=0x%" PRIx64
1535 " rxoffload_capa=0x%" PRIx64 " txoffload_capa=0x%" PRIx64,
1536 eth_dev->data->port_id, dev->pf, dev->vf,
1537 OTX2_ETH_DEV_PMD_VERSION, dev->nix_msixoff, dev->hwcap,
1538 dev->rx_offload_capa, dev->tx_offload_capa);
1542 rte_free(eth_dev->data->mac_addrs);
1544 otx2_nix_unregister_irqs(eth_dev);
1546 otx2_eth_dev_lf_detach(dev->mbox);
1550 otx2_dev_fini(pci_dev, dev);
1552 otx2_err("Failed to init nix eth_dev rc=%d", rc);
1557 otx2_eth_dev_uninit(struct rte_eth_dev *eth_dev, bool mbox_close)
1559 struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
1560 struct rte_pci_device *pci_dev;
1563 /* Nothing to be done for secondary processes */
1564 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1567 /* Disable nix bpid config */
1568 otx2_nix_rxchan_bpid_cfg(eth_dev, false);
1570 /* Disable vlan offloads */
1571 otx2_nix_vlan_fini(eth_dev);
1573 /* Disable other rte_flow entries */
1574 otx2_flow_fini(dev);
1576 /* Disable PTP if already enabled */
1577 if (otx2_ethdev_is_ptp_en(dev))
1578 otx2_nix_timesync_disable(eth_dev);
1581 for (i = 0; i < eth_dev->data->nb_tx_queues; i++) {
1582 otx2_nix_tx_queue_release(eth_dev->data->tx_queues[i]);
1583 eth_dev->data->tx_queues[i] = NULL;
1585 eth_dev->data->nb_tx_queues = 0;
1587 /* Free up RQ's and CQ's */
1588 for (i = 0; i < eth_dev->data->nb_rx_queues; i++) {
1589 otx2_nix_rx_queue_release(eth_dev->data->rx_queues[i]);
1590 eth_dev->data->rx_queues[i] = NULL;
1592 eth_dev->data->nb_rx_queues = 0;
1594 /* Free tm resources */
1595 rc = otx2_nix_tm_fini(eth_dev);
1597 otx2_err("Failed to cleanup tm, rc=%d", rc);
1599 /* Unregister queue irqs */
1600 oxt2_nix_unregister_queue_irqs(eth_dev);
1602 rc = nix_lf_free(dev);
1604 otx2_err("Failed to free nix lf, rc=%d", rc);
1606 rc = otx2_npa_lf_fini();
1608 otx2_err("Failed to cleanup npa lf, rc=%d", rc);
1610 rte_free(eth_dev->data->mac_addrs);
1611 eth_dev->data->mac_addrs = NULL;
1612 dev->drv_inited = false;
1614 pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
1615 otx2_nix_unregister_irqs(eth_dev);
1617 rc = otx2_eth_dev_lf_detach(dev->mbox);
1619 otx2_err("Failed to detach resources, rc=%d", rc);
1621 /* Check if mbox close is needed */
1625 if (otx2_npa_lf_active(dev) || otx2_dev_active_vfs(dev)) {
1626 /* Will be freed later by PMD */
1627 eth_dev->data->dev_private = NULL;
1631 otx2_dev_fini(pci_dev, dev);
1636 nix_remove(struct rte_pci_device *pci_dev)
1638 struct rte_eth_dev *eth_dev;
1639 struct otx2_idev_cfg *idev;
1640 struct otx2_dev *otx2_dev;
1643 eth_dev = rte_eth_dev_allocated(pci_dev->device.name);
1645 /* Cleanup eth dev */
1646 rc = otx2_eth_dev_uninit(eth_dev, true);
1650 rte_eth_dev_pci_release(eth_dev);
1653 /* Nothing to be done for secondary processes */
1654 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1657 /* Check for common resources */
1658 idev = otx2_intra_dev_get_cfg();
1659 if (!idev || !idev->npa_lf || idev->npa_lf->pci_dev != pci_dev)
1662 otx2_dev = container_of(idev->npa_lf, struct otx2_dev, npalf);
1664 if (otx2_npa_lf_active(otx2_dev) || otx2_dev_active_vfs(otx2_dev))
1667 /* Safe to cleanup mbox as no more users */
1668 otx2_dev_fini(pci_dev, otx2_dev);
1673 otx2_info("%s: common resource in use by other devices", pci_dev->name);
1678 nix_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
1682 RTE_SET_USED(pci_drv);
1684 rc = rte_eth_dev_pci_generic_probe(pci_dev, sizeof(struct otx2_eth_dev),
1687 /* On error on secondary, recheck if port exists in primary or
1688 * in mid of detach state.
1690 if (rte_eal_process_type() != RTE_PROC_PRIMARY && rc)
1691 if (!rte_eth_dev_allocated(pci_dev->device.name))
1696 static const struct rte_pci_id pci_nix_map[] = {
1698 RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_RVU_PF)
1701 RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_RVU_VF)
1704 RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM,
1705 PCI_DEVID_OCTEONTX2_RVU_AF_VF)
1712 static struct rte_pci_driver pci_nix = {
1713 .id_table = pci_nix_map,
1714 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_IOVA_AS_VA |
1715 RTE_PCI_DRV_INTR_LSC,
1717 .remove = nix_remove,
1720 RTE_PMD_REGISTER_PCI(net_octeontx2, pci_nix);
1721 RTE_PMD_REGISTER_PCI_TABLE(net_octeontx2, pci_nix_map);
1722 RTE_PMD_REGISTER_KMOD_DEP(net_octeontx2, "vfio-pci");