common/sfc_efx/base: implement Tx control path for Riverhead
[dpdk.git] / drivers / net / ice / ice_dcf_ethdev.c
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2020 Intel Corporation
3  */
4
5 #include <errno.h>
6 #include <stdbool.h>
7 #include <sys/types.h>
8 #include <sys/ioctl.h>
9 #include <unistd.h>
10
11 #include <rte_interrupts.h>
12 #include <rte_debug.h>
13 #include <rte_pci.h>
14 #include <rte_atomic.h>
15 #include <rte_eal.h>
16 #include <rte_ether.h>
17 #include <rte_ethdev_pci.h>
18 #include <rte_kvargs.h>
19 #include <rte_malloc.h>
20 #include <rte_memzone.h>
21 #include <rte_dev.h>
22
23 #include <iavf_devids.h>
24
25 #include "ice_generic_flow.h"
26 #include "ice_dcf_ethdev.h"
27 #include "ice_rxtx.h"
28
29 static uint16_t
30 ice_dcf_recv_pkts(__rte_unused void *rx_queue,
31                   __rte_unused struct rte_mbuf **bufs,
32                   __rte_unused uint16_t nb_pkts)
33 {
34         return 0;
35 }
36
37 static uint16_t
38 ice_dcf_xmit_pkts(__rte_unused void *tx_queue,
39                   __rte_unused struct rte_mbuf **bufs,
40                   __rte_unused uint16_t nb_pkts)
41 {
42         return 0;
43 }
44
45 static int
46 ice_dcf_init_rxq(struct rte_eth_dev *dev, struct ice_rx_queue *rxq)
47 {
48         struct ice_dcf_adapter *dcf_ad = dev->data->dev_private;
49         struct rte_eth_dev_data *dev_data = dev->data;
50         struct iavf_hw *hw = &dcf_ad->real_hw.avf;
51         uint16_t buf_size, max_pkt_len, len;
52
53         buf_size = rte_pktmbuf_data_room_size(rxq->mp) - RTE_PKTMBUF_HEADROOM;
54         rxq->rx_hdr_len = 0;
55         rxq->rx_buf_len = RTE_ALIGN(buf_size, (1 << ICE_RLAN_CTX_DBUF_S));
56         len = ICE_SUPPORT_CHAIN_NUM * rxq->rx_buf_len;
57         max_pkt_len = RTE_MIN(len, dev->data->dev_conf.rxmode.max_rx_pkt_len);
58
59         /* Check if the jumbo frame and maximum packet length are set
60          * correctly.
61          */
62         if (dev->data->dev_conf.rxmode.offloads & DEV_RX_OFFLOAD_JUMBO_FRAME) {
63                 if (max_pkt_len <= RTE_ETHER_MAX_LEN ||
64                     max_pkt_len > ICE_FRAME_SIZE_MAX) {
65                         PMD_DRV_LOG(ERR, "maximum packet length must be "
66                                     "larger than %u and smaller than %u, "
67                                     "as jumbo frame is enabled",
68                                     (uint32_t)RTE_ETHER_MAX_LEN,
69                                     (uint32_t)ICE_FRAME_SIZE_MAX);
70                         return -EINVAL;
71                 }
72         } else {
73                 if (max_pkt_len < RTE_ETHER_MIN_LEN ||
74                     max_pkt_len > RTE_ETHER_MAX_LEN) {
75                         PMD_DRV_LOG(ERR, "maximum packet length must be "
76                                     "larger than %u and smaller than %u, "
77                                     "as jumbo frame is disabled",
78                                     (uint32_t)RTE_ETHER_MIN_LEN,
79                                     (uint32_t)RTE_ETHER_MAX_LEN);
80                         return -EINVAL;
81                 }
82         }
83
84         rxq->max_pkt_len = max_pkt_len;
85         if ((dev_data->dev_conf.rxmode.offloads & DEV_RX_OFFLOAD_SCATTER) ||
86             (rxq->max_pkt_len + 2 * ICE_VLAN_TAG_SIZE) > buf_size) {
87                 dev_data->scattered_rx = 1;
88         }
89         rxq->qrx_tail = hw->hw_addr + IAVF_QRX_TAIL1(rxq->queue_id);
90         IAVF_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
91         IAVF_WRITE_FLUSH(hw);
92
93         return 0;
94 }
95
96 static int
97 ice_dcf_init_rx_queues(struct rte_eth_dev *dev)
98 {
99         struct ice_rx_queue **rxq =
100                 (struct ice_rx_queue **)dev->data->rx_queues;
101         int i, ret;
102
103         for (i = 0; i < dev->data->nb_rx_queues; i++) {
104                 if (!rxq[i] || !rxq[i]->q_set)
105                         continue;
106                 ret = ice_dcf_init_rxq(dev, rxq[i]);
107                 if (ret)
108                         return ret;
109         }
110
111         ice_set_rx_function(dev);
112         ice_set_tx_function(dev);
113
114         return 0;
115 }
116
117 #define IAVF_MISC_VEC_ID                RTE_INTR_VEC_ZERO_OFFSET
118 #define IAVF_RX_VEC_START               RTE_INTR_VEC_RXTX_OFFSET
119
120 #define IAVF_ITR_INDEX_DEFAULT          0
121 #define IAVF_QUEUE_ITR_INTERVAL_DEFAULT 32 /* 32 us */
122 #define IAVF_QUEUE_ITR_INTERVAL_MAX     8160 /* 8160 us */
123
124 static inline uint16_t
125 iavf_calc_itr_interval(int16_t interval)
126 {
127         if (interval < 0 || interval > IAVF_QUEUE_ITR_INTERVAL_MAX)
128                 interval = IAVF_QUEUE_ITR_INTERVAL_DEFAULT;
129
130         /* Convert to hardware count, as writing each 1 represents 2 us */
131         return interval / 2;
132 }
133
134 static int
135 ice_dcf_config_rx_queues_irqs(struct rte_eth_dev *dev,
136                                      struct rte_intr_handle *intr_handle)
137 {
138         struct ice_dcf_adapter *adapter = dev->data->dev_private;
139         struct ice_dcf_hw *hw = &adapter->real_hw;
140         uint16_t interval, i;
141         int vec;
142
143         if (rte_intr_cap_multiple(intr_handle) &&
144             dev->data->dev_conf.intr_conf.rxq) {
145                 if (rte_intr_efd_enable(intr_handle, dev->data->nb_rx_queues))
146                         return -1;
147         }
148
149         if (rte_intr_dp_is_en(intr_handle) && !intr_handle->intr_vec) {
150                 intr_handle->intr_vec =
151                         rte_zmalloc("intr_vec",
152                                     dev->data->nb_rx_queues * sizeof(int), 0);
153                 if (!intr_handle->intr_vec) {
154                         PMD_DRV_LOG(ERR, "Failed to allocate %d rx intr_vec",
155                                     dev->data->nb_rx_queues);
156                         return -1;
157                 }
158         }
159
160         if (!dev->data->dev_conf.intr_conf.rxq ||
161             !rte_intr_dp_is_en(intr_handle)) {
162                 /* Rx interrupt disabled, Map interrupt only for writeback */
163                 hw->nb_msix = 1;
164                 if (hw->vf_res->vf_cap_flags &
165                     VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) {
166                         /* If WB_ON_ITR supports, enable it */
167                         hw->msix_base = IAVF_RX_VEC_START;
168                         IAVF_WRITE_REG(&hw->avf,
169                                        IAVF_VFINT_DYN_CTLN1(hw->msix_base - 1),
170                                        IAVF_VFINT_DYN_CTLN1_ITR_INDX_MASK |
171                                        IAVF_VFINT_DYN_CTLN1_WB_ON_ITR_MASK);
172                 } else {
173                         /* If no WB_ON_ITR offload flags, need to set
174                          * interrupt for descriptor write back.
175                          */
176                         hw->msix_base = IAVF_MISC_VEC_ID;
177
178                         /* set ITR to max */
179                         interval =
180                         iavf_calc_itr_interval(IAVF_QUEUE_ITR_INTERVAL_MAX);
181                         IAVF_WRITE_REG(&hw->avf, IAVF_VFINT_DYN_CTL01,
182                                        IAVF_VFINT_DYN_CTL01_INTENA_MASK |
183                                        (IAVF_ITR_INDEX_DEFAULT <<
184                                         IAVF_VFINT_DYN_CTL01_ITR_INDX_SHIFT) |
185                                        (interval <<
186                                         IAVF_VFINT_DYN_CTL01_INTERVAL_SHIFT));
187                 }
188                 IAVF_WRITE_FLUSH(&hw->avf);
189                 /* map all queues to the same interrupt */
190                 for (i = 0; i < dev->data->nb_rx_queues; i++)
191                         hw->rxq_map[hw->msix_base] |= 1 << i;
192         } else {
193                 if (!rte_intr_allow_others(intr_handle)) {
194                         hw->nb_msix = 1;
195                         hw->msix_base = IAVF_MISC_VEC_ID;
196                         for (i = 0; i < dev->data->nb_rx_queues; i++) {
197                                 hw->rxq_map[hw->msix_base] |= 1 << i;
198                                 intr_handle->intr_vec[i] = IAVF_MISC_VEC_ID;
199                         }
200                         PMD_DRV_LOG(DEBUG,
201                                     "vector %u are mapping to all Rx queues",
202                                     hw->msix_base);
203                 } else {
204                         /* If Rx interrupt is reuquired, and we can use
205                          * multi interrupts, then the vec is from 1
206                          */
207                         hw->nb_msix = RTE_MIN(hw->vf_res->max_vectors,
208                                               intr_handle->nb_efd);
209                         hw->msix_base = IAVF_MISC_VEC_ID;
210                         vec = IAVF_MISC_VEC_ID;
211                         for (i = 0; i < dev->data->nb_rx_queues; i++) {
212                                 hw->rxq_map[vec] |= 1 << i;
213                                 intr_handle->intr_vec[i] = vec++;
214                                 if (vec >= hw->nb_msix)
215                                         vec = IAVF_RX_VEC_START;
216                         }
217                         PMD_DRV_LOG(DEBUG,
218                                     "%u vectors are mapping to %u Rx queues",
219                                     hw->nb_msix, dev->data->nb_rx_queues);
220                 }
221         }
222
223         if (ice_dcf_config_irq_map(hw)) {
224                 PMD_DRV_LOG(ERR, "config interrupt mapping failed");
225                 return -1;
226         }
227         return 0;
228 }
229
230 static int
231 alloc_rxq_mbufs(struct ice_rx_queue *rxq)
232 {
233         volatile union ice_rx_flex_desc *rxd;
234         struct rte_mbuf *mbuf = NULL;
235         uint64_t dma_addr;
236         uint16_t i;
237
238         for (i = 0; i < rxq->nb_rx_desc; i++) {
239                 mbuf = rte_mbuf_raw_alloc(rxq->mp);
240                 if (unlikely(!mbuf)) {
241                         PMD_DRV_LOG(ERR, "Failed to allocate mbuf for RX");
242                         return -ENOMEM;
243                 }
244
245                 rte_mbuf_refcnt_set(mbuf, 1);
246                 mbuf->next = NULL;
247                 mbuf->data_off = RTE_PKTMBUF_HEADROOM;
248                 mbuf->nb_segs = 1;
249                 mbuf->port = rxq->port_id;
250
251                 dma_addr =
252                         rte_cpu_to_le_64(rte_mbuf_data_iova_default(mbuf));
253
254                 rxd = &rxq->rx_ring[i];
255                 rxd->read.pkt_addr = dma_addr;
256                 rxd->read.hdr_addr = 0;
257 #ifndef RTE_LIBRTE_ICE_16BYTE_RX_DESC
258                 rxd->read.rsvd1 = 0;
259                 rxd->read.rsvd2 = 0;
260 #endif
261
262                 rxq->sw_ring[i].mbuf = (void *)mbuf;
263         }
264
265         return 0;
266 }
267
268 static int
269 ice_dcf_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
270 {
271         struct ice_dcf_adapter *ad = dev->data->dev_private;
272         struct iavf_hw *hw = &ad->real_hw.avf;
273         struct ice_rx_queue *rxq;
274         int err = 0;
275
276         if (rx_queue_id >= dev->data->nb_rx_queues)
277                 return -EINVAL;
278
279         rxq = dev->data->rx_queues[rx_queue_id];
280
281         err = alloc_rxq_mbufs(rxq);
282         if (err) {
283                 PMD_DRV_LOG(ERR, "Failed to allocate RX queue mbuf");
284                 return err;
285         }
286
287         rte_wmb();
288
289         /* Init the RX tail register. */
290         IAVF_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
291         IAVF_WRITE_FLUSH(hw);
292
293         /* Ready to switch the queue on */
294         err = ice_dcf_switch_queue(&ad->real_hw, rx_queue_id, true, true);
295         if (err) {
296                 PMD_DRV_LOG(ERR, "Failed to switch RX queue %u on",
297                             rx_queue_id);
298                 return err;
299         }
300
301         dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
302
303         return 0;
304 }
305
306 static inline void
307 reset_rx_queue(struct ice_rx_queue *rxq)
308 {
309         uint16_t len;
310         uint32_t i;
311
312         if (!rxq)
313                 return;
314
315         len = rxq->nb_rx_desc + ICE_RX_MAX_BURST;
316
317         for (i = 0; i < len * sizeof(union ice_rx_flex_desc); i++)
318                 ((volatile char *)rxq->rx_ring)[i] = 0;
319
320         memset(&rxq->fake_mbuf, 0x0, sizeof(rxq->fake_mbuf));
321
322         for (i = 0; i < ICE_RX_MAX_BURST; i++)
323                 rxq->sw_ring[rxq->nb_rx_desc + i].mbuf = &rxq->fake_mbuf;
324
325         /* for rx bulk */
326         rxq->rx_nb_avail = 0;
327         rxq->rx_next_avail = 0;
328         rxq->rx_free_trigger = (uint16_t)(rxq->rx_free_thresh - 1);
329
330         rxq->rx_tail = 0;
331         rxq->nb_rx_hold = 0;
332         rxq->pkt_first_seg = NULL;
333         rxq->pkt_last_seg = NULL;
334 }
335
336 static inline void
337 reset_tx_queue(struct ice_tx_queue *txq)
338 {
339         struct ice_tx_entry *txe;
340         uint32_t i, size;
341         uint16_t prev;
342
343         if (!txq) {
344                 PMD_DRV_LOG(DEBUG, "Pointer to txq is NULL");
345                 return;
346         }
347
348         txe = txq->sw_ring;
349         size = sizeof(struct ice_tx_desc) * txq->nb_tx_desc;
350         for (i = 0; i < size; i++)
351                 ((volatile char *)txq->tx_ring)[i] = 0;
352
353         prev = (uint16_t)(txq->nb_tx_desc - 1);
354         for (i = 0; i < txq->nb_tx_desc; i++) {
355                 txq->tx_ring[i].cmd_type_offset_bsz =
356                         rte_cpu_to_le_64(IAVF_TX_DESC_DTYPE_DESC_DONE);
357                 txe[i].mbuf =  NULL;
358                 txe[i].last_id = i;
359                 txe[prev].next_id = i;
360                 prev = i;
361         }
362
363         txq->tx_tail = 0;
364         txq->nb_tx_used = 0;
365
366         txq->last_desc_cleaned = txq->nb_tx_desc - 1;
367         txq->nb_tx_free = txq->nb_tx_desc - 1;
368
369         txq->tx_next_dd = txq->tx_rs_thresh - 1;
370         txq->tx_next_rs = txq->tx_rs_thresh - 1;
371 }
372
373 static int
374 ice_dcf_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
375 {
376         struct ice_dcf_adapter *ad = dev->data->dev_private;
377         struct ice_dcf_hw *hw = &ad->real_hw;
378         struct ice_rx_queue *rxq;
379         int err;
380
381         if (rx_queue_id >= dev->data->nb_rx_queues)
382                 return -EINVAL;
383
384         err = ice_dcf_switch_queue(hw, rx_queue_id, true, false);
385         if (err) {
386                 PMD_DRV_LOG(ERR, "Failed to switch RX queue %u off",
387                             rx_queue_id);
388                 return err;
389         }
390
391         rxq = dev->data->rx_queues[rx_queue_id];
392         rxq->rx_rel_mbufs(rxq);
393         reset_rx_queue(rxq);
394         dev->data->rx_queue_state[rx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
395
396         return 0;
397 }
398
399 static int
400 ice_dcf_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
401 {
402         struct ice_dcf_adapter *ad = dev->data->dev_private;
403         struct iavf_hw *hw = &ad->real_hw.avf;
404         struct ice_tx_queue *txq;
405         int err = 0;
406
407         if (tx_queue_id >= dev->data->nb_tx_queues)
408                 return -EINVAL;
409
410         txq = dev->data->tx_queues[tx_queue_id];
411
412         /* Init the RX tail register. */
413         txq->qtx_tail = hw->hw_addr + IAVF_QTX_TAIL1(tx_queue_id);
414         IAVF_PCI_REG_WRITE(txq->qtx_tail, 0);
415         IAVF_WRITE_FLUSH(hw);
416
417         /* Ready to switch the queue on */
418         err = ice_dcf_switch_queue(&ad->real_hw, tx_queue_id, false, true);
419
420         if (err) {
421                 PMD_DRV_LOG(ERR, "Failed to switch TX queue %u on",
422                             tx_queue_id);
423                 return err;
424         }
425
426         dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STARTED;
427
428         return 0;
429 }
430
431 static int
432 ice_dcf_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
433 {
434         struct ice_dcf_adapter *ad = dev->data->dev_private;
435         struct ice_dcf_hw *hw = &ad->real_hw;
436         struct ice_tx_queue *txq;
437         int err;
438
439         if (tx_queue_id >= dev->data->nb_tx_queues)
440                 return -EINVAL;
441
442         err = ice_dcf_switch_queue(hw, tx_queue_id, false, false);
443         if (err) {
444                 PMD_DRV_LOG(ERR, "Failed to switch TX queue %u off",
445                             tx_queue_id);
446                 return err;
447         }
448
449         txq = dev->data->tx_queues[tx_queue_id];
450         txq->tx_rel_mbufs(txq);
451         reset_tx_queue(txq);
452         dev->data->tx_queue_state[tx_queue_id] = RTE_ETH_QUEUE_STATE_STOPPED;
453
454         return 0;
455 }
456
457 static int
458 ice_dcf_start_queues(struct rte_eth_dev *dev)
459 {
460         struct ice_rx_queue *rxq;
461         struct ice_tx_queue *txq;
462         int nb_rxq = 0;
463         int nb_txq, i;
464
465         for (nb_txq = 0; nb_txq < dev->data->nb_tx_queues; nb_txq++) {
466                 txq = dev->data->tx_queues[nb_txq];
467                 if (txq->tx_deferred_start)
468                         continue;
469                 if (ice_dcf_tx_queue_start(dev, nb_txq) != 0) {
470                         PMD_DRV_LOG(ERR, "Fail to start queue %u", nb_txq);
471                         goto tx_err;
472                 }
473         }
474
475         for (nb_rxq = 0; nb_rxq < dev->data->nb_rx_queues; nb_rxq++) {
476                 rxq = dev->data->rx_queues[nb_rxq];
477                 if (rxq->rx_deferred_start)
478                         continue;
479                 if (ice_dcf_rx_queue_start(dev, nb_rxq) != 0) {
480                         PMD_DRV_LOG(ERR, "Fail to start queue %u", nb_rxq);
481                         goto rx_err;
482                 }
483         }
484
485         return 0;
486
487         /* stop the started queues if failed to start all queues */
488 rx_err:
489         for (i = 0; i < nb_rxq; i++)
490                 ice_dcf_rx_queue_stop(dev, i);
491 tx_err:
492         for (i = 0; i < nb_txq; i++)
493                 ice_dcf_tx_queue_stop(dev, i);
494
495         return -1;
496 }
497
498 static int
499 ice_dcf_dev_start(struct rte_eth_dev *dev)
500 {
501         struct ice_dcf_adapter *dcf_ad = dev->data->dev_private;
502         struct rte_intr_handle *intr_handle = dev->intr_handle;
503         struct ice_adapter *ad = &dcf_ad->parent;
504         struct ice_dcf_hw *hw = &dcf_ad->real_hw;
505         int ret;
506
507         ad->pf.adapter_stopped = 0;
508
509         hw->num_queue_pairs = RTE_MAX(dev->data->nb_rx_queues,
510                                       dev->data->nb_tx_queues);
511
512         ret = ice_dcf_init_rx_queues(dev);
513         if (ret) {
514                 PMD_DRV_LOG(ERR, "Fail to init queues");
515                 return ret;
516         }
517
518         if (hw->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
519                 ret = ice_dcf_init_rss(hw);
520                 if (ret) {
521                         PMD_DRV_LOG(ERR, "Failed to configure RSS");
522                         return ret;
523                 }
524         }
525
526         ret = ice_dcf_configure_queues(hw);
527         if (ret) {
528                 PMD_DRV_LOG(ERR, "Fail to config queues");
529                 return ret;
530         }
531
532         ret = ice_dcf_config_rx_queues_irqs(dev, intr_handle);
533         if (ret) {
534                 PMD_DRV_LOG(ERR, "Fail to config rx queues' irqs");
535                 return ret;
536         }
537
538         if (dev->data->dev_conf.intr_conf.rxq != 0) {
539                 rte_intr_disable(intr_handle);
540                 rte_intr_enable(intr_handle);
541         }
542
543         ret = ice_dcf_start_queues(dev);
544         if (ret) {
545                 PMD_DRV_LOG(ERR, "Failed to enable queues");
546                 return ret;
547         }
548
549         ret = ice_dcf_add_del_all_mac_addr(hw, true);
550         if (ret) {
551                 PMD_DRV_LOG(ERR, "Failed to add mac addr");
552                 return ret;
553         }
554
555         dev->data->dev_link.link_status = ETH_LINK_UP;
556
557         return 0;
558 }
559
560 static void
561 ice_dcf_stop_queues(struct rte_eth_dev *dev)
562 {
563         struct ice_dcf_adapter *ad = dev->data->dev_private;
564         struct ice_dcf_hw *hw = &ad->real_hw;
565         struct ice_rx_queue *rxq;
566         struct ice_tx_queue *txq;
567         int ret, i;
568
569         /* Stop All queues */
570         ret = ice_dcf_disable_queues(hw);
571         if (ret)
572                 PMD_DRV_LOG(WARNING, "Fail to stop queues");
573
574         for (i = 0; i < dev->data->nb_tx_queues; i++) {
575                 txq = dev->data->tx_queues[i];
576                 if (!txq)
577                         continue;
578                 txq->tx_rel_mbufs(txq);
579                 reset_tx_queue(txq);
580                 dev->data->tx_queue_state[i] = RTE_ETH_QUEUE_STATE_STOPPED;
581         }
582         for (i = 0; i < dev->data->nb_rx_queues; i++) {
583                 rxq = dev->data->rx_queues[i];
584                 if (!rxq)
585                         continue;
586                 rxq->rx_rel_mbufs(rxq);
587                 reset_rx_queue(rxq);
588                 dev->data->rx_queue_state[i] = RTE_ETH_QUEUE_STATE_STOPPED;
589         }
590 }
591
592 static void
593 ice_dcf_dev_stop(struct rte_eth_dev *dev)
594 {
595         struct ice_dcf_adapter *dcf_ad = dev->data->dev_private;
596         struct rte_intr_handle *intr_handle = dev->intr_handle;
597         struct ice_adapter *ad = &dcf_ad->parent;
598
599         if (ad->pf.adapter_stopped == 1) {
600                 PMD_DRV_LOG(DEBUG, "Port is already stopped");
601                 return;
602         }
603
604         ice_dcf_stop_queues(dev);
605
606         rte_intr_efd_disable(intr_handle);
607         if (intr_handle->intr_vec) {
608                 rte_free(intr_handle->intr_vec);
609                 intr_handle->intr_vec = NULL;
610         }
611
612         ice_dcf_add_del_all_mac_addr(&dcf_ad->real_hw, false);
613         dev->data->dev_link.link_status = ETH_LINK_DOWN;
614         ad->pf.adapter_stopped = 1;
615 }
616
617 static int
618 ice_dcf_dev_configure(struct rte_eth_dev *dev)
619 {
620         struct ice_dcf_adapter *dcf_ad = dev->data->dev_private;
621         struct ice_adapter *ad = &dcf_ad->parent;
622
623         ad->rx_bulk_alloc_allowed = true;
624         ad->tx_simple_allowed = true;
625
626         if (dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG)
627                 dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH;
628
629         return 0;
630 }
631
632 static int
633 ice_dcf_dev_info_get(struct rte_eth_dev *dev,
634                      struct rte_eth_dev_info *dev_info)
635 {
636         struct ice_dcf_adapter *adapter = dev->data->dev_private;
637         struct ice_dcf_hw *hw = &adapter->real_hw;
638
639         dev_info->max_mac_addrs = 1;
640         dev_info->max_rx_queues = hw->vsi_res->num_queue_pairs;
641         dev_info->max_tx_queues = hw->vsi_res->num_queue_pairs;
642         dev_info->min_rx_bufsize = ICE_BUF_SIZE_MIN;
643         dev_info->max_rx_pktlen = ICE_FRAME_SIZE_MAX;
644         dev_info->hash_key_size = hw->vf_res->rss_key_size;
645         dev_info->reta_size = hw->vf_res->rss_lut_size;
646         dev_info->flow_type_rss_offloads = ICE_RSS_OFFLOAD_ALL;
647
648         dev_info->rx_offload_capa =
649                 DEV_RX_OFFLOAD_VLAN_STRIP |
650                 DEV_RX_OFFLOAD_IPV4_CKSUM |
651                 DEV_RX_OFFLOAD_UDP_CKSUM |
652                 DEV_RX_OFFLOAD_TCP_CKSUM |
653                 DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM |
654                 DEV_RX_OFFLOAD_SCATTER |
655                 DEV_RX_OFFLOAD_JUMBO_FRAME |
656                 DEV_RX_OFFLOAD_VLAN_FILTER |
657                 DEV_RX_OFFLOAD_RSS_HASH;
658         dev_info->tx_offload_capa =
659                 DEV_TX_OFFLOAD_VLAN_INSERT |
660                 DEV_TX_OFFLOAD_IPV4_CKSUM |
661                 DEV_TX_OFFLOAD_UDP_CKSUM |
662                 DEV_TX_OFFLOAD_TCP_CKSUM |
663                 DEV_TX_OFFLOAD_SCTP_CKSUM |
664                 DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM |
665                 DEV_TX_OFFLOAD_TCP_TSO |
666                 DEV_TX_OFFLOAD_VXLAN_TNL_TSO |
667                 DEV_TX_OFFLOAD_GRE_TNL_TSO |
668                 DEV_TX_OFFLOAD_IPIP_TNL_TSO |
669                 DEV_TX_OFFLOAD_GENEVE_TNL_TSO |
670                 DEV_TX_OFFLOAD_MULTI_SEGS;
671
672         dev_info->default_rxconf = (struct rte_eth_rxconf) {
673                 .rx_thresh = {
674                         .pthresh = ICE_DEFAULT_RX_PTHRESH,
675                         .hthresh = ICE_DEFAULT_RX_HTHRESH,
676                         .wthresh = ICE_DEFAULT_RX_WTHRESH,
677                 },
678                 .rx_free_thresh = ICE_DEFAULT_RX_FREE_THRESH,
679                 .rx_drop_en = 0,
680                 .offloads = 0,
681         };
682
683         dev_info->default_txconf = (struct rte_eth_txconf) {
684                 .tx_thresh = {
685                         .pthresh = ICE_DEFAULT_TX_PTHRESH,
686                         .hthresh = ICE_DEFAULT_TX_HTHRESH,
687                         .wthresh = ICE_DEFAULT_TX_WTHRESH,
688                 },
689                 .tx_free_thresh = ICE_DEFAULT_TX_FREE_THRESH,
690                 .tx_rs_thresh = ICE_DEFAULT_TX_RSBIT_THRESH,
691                 .offloads = 0,
692         };
693
694         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
695                 .nb_max = ICE_MAX_RING_DESC,
696                 .nb_min = ICE_MIN_RING_DESC,
697                 .nb_align = ICE_ALIGN_RING_DESC,
698         };
699
700         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
701                 .nb_max = ICE_MAX_RING_DESC,
702                 .nb_min = ICE_MIN_RING_DESC,
703                 .nb_align = ICE_ALIGN_RING_DESC,
704         };
705
706         return 0;
707 }
708
709 static int
710 ice_dcf_dev_promiscuous_enable(__rte_unused struct rte_eth_dev *dev)
711 {
712         return 0;
713 }
714
715 static int
716 ice_dcf_dev_promiscuous_disable(__rte_unused struct rte_eth_dev *dev)
717 {
718         return 0;
719 }
720
721 static int
722 ice_dcf_dev_allmulticast_enable(__rte_unused struct rte_eth_dev *dev)
723 {
724         return 0;
725 }
726
727 static int
728 ice_dcf_dev_allmulticast_disable(__rte_unused struct rte_eth_dev *dev)
729 {
730         return 0;
731 }
732
733 static int
734 ice_dcf_dev_filter_ctrl(struct rte_eth_dev *dev,
735                         enum rte_filter_type filter_type,
736                         enum rte_filter_op filter_op,
737                         void *arg)
738 {
739         int ret = 0;
740
741         if (!dev)
742                 return -EINVAL;
743
744         switch (filter_type) {
745         case RTE_ETH_FILTER_GENERIC:
746                 if (filter_op != RTE_ETH_FILTER_GET)
747                         return -EINVAL;
748                 *(const void **)arg = &ice_flow_ops;
749                 break;
750
751         default:
752                 PMD_DRV_LOG(WARNING, "Filter type (%d) not supported",
753                             filter_type);
754                 ret = -EINVAL;
755                 break;
756         }
757
758         return ret;
759 }
760
761 #define ICE_DCF_32_BIT_WIDTH (CHAR_BIT * 4)
762 #define ICE_DCF_48_BIT_WIDTH (CHAR_BIT * 6)
763 #define ICE_DCF_48_BIT_MASK  RTE_LEN2MASK(ICE_DCF_48_BIT_WIDTH, uint64_t)
764
765 static void
766 ice_dcf_stat_update_48(uint64_t *offset, uint64_t *stat)
767 {
768         if (*stat >= *offset)
769                 *stat = *stat - *offset;
770         else
771                 *stat = (uint64_t)((*stat +
772                         ((uint64_t)1 << ICE_DCF_48_BIT_WIDTH)) - *offset);
773
774         *stat &= ICE_DCF_48_BIT_MASK;
775 }
776
777 static void
778 ice_dcf_stat_update_32(uint64_t *offset, uint64_t *stat)
779 {
780         if (*stat >= *offset)
781                 *stat = (uint64_t)(*stat - *offset);
782         else
783                 *stat = (uint64_t)((*stat +
784                         ((uint64_t)1 << ICE_DCF_32_BIT_WIDTH)) - *offset);
785 }
786
787 static void
788 ice_dcf_update_stats(struct virtchnl_eth_stats *oes,
789                      struct virtchnl_eth_stats *nes)
790 {
791         ice_dcf_stat_update_48(&oes->rx_bytes, &nes->rx_bytes);
792         ice_dcf_stat_update_48(&oes->rx_unicast, &nes->rx_unicast);
793         ice_dcf_stat_update_48(&oes->rx_multicast, &nes->rx_multicast);
794         ice_dcf_stat_update_48(&oes->rx_broadcast, &nes->rx_broadcast);
795         ice_dcf_stat_update_32(&oes->rx_discards, &nes->rx_discards);
796         ice_dcf_stat_update_48(&oes->tx_bytes, &nes->tx_bytes);
797         ice_dcf_stat_update_48(&oes->tx_unicast, &nes->tx_unicast);
798         ice_dcf_stat_update_48(&oes->tx_multicast, &nes->tx_multicast);
799         ice_dcf_stat_update_48(&oes->tx_broadcast, &nes->tx_broadcast);
800         ice_dcf_stat_update_32(&oes->tx_errors, &nes->tx_errors);
801         ice_dcf_stat_update_32(&oes->tx_discards, &nes->tx_discards);
802 }
803
804
805 static int
806 ice_dcf_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
807 {
808         struct ice_dcf_adapter *ad = dev->data->dev_private;
809         struct ice_dcf_hw *hw = &ad->real_hw;
810         struct virtchnl_eth_stats pstats;
811         int ret;
812
813         ret = ice_dcf_query_stats(hw, &pstats);
814         if (ret == 0) {
815                 ice_dcf_update_stats(&hw->eth_stats_offset, &pstats);
816                 stats->ipackets = pstats.rx_unicast + pstats.rx_multicast +
817                                 pstats.rx_broadcast - pstats.rx_discards;
818                 stats->opackets = pstats.tx_broadcast + pstats.tx_multicast +
819                                                 pstats.tx_unicast;
820                 stats->imissed = pstats.rx_discards;
821                 stats->oerrors = pstats.tx_errors + pstats.tx_discards;
822                 stats->ibytes = pstats.rx_bytes;
823                 stats->ibytes -= stats->ipackets * RTE_ETHER_CRC_LEN;
824                 stats->obytes = pstats.tx_bytes;
825         } else {
826                 PMD_DRV_LOG(ERR, "Get statistics failed");
827         }
828         return ret;
829 }
830
831 static int
832 ice_dcf_stats_reset(struct rte_eth_dev *dev)
833 {
834         struct ice_dcf_adapter *ad = dev->data->dev_private;
835         struct ice_dcf_hw *hw = &ad->real_hw;
836         struct virtchnl_eth_stats pstats;
837         int ret;
838
839         /* read stat values to clear hardware registers */
840         ret = ice_dcf_query_stats(hw, &pstats);
841         if (ret != 0)
842                 return ret;
843
844         /* set stats offset base on current values */
845         hw->eth_stats_offset = pstats;
846
847         return 0;
848 }
849
850 static void
851 ice_dcf_dev_close(struct rte_eth_dev *dev)
852 {
853         struct ice_dcf_adapter *adapter = dev->data->dev_private;
854
855         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
856                 return;
857
858         dev->dev_ops = NULL;
859         dev->rx_pkt_burst = NULL;
860         dev->tx_pkt_burst = NULL;
861
862         ice_dcf_uninit_parent_adapter(dev);
863         ice_dcf_uninit_hw(dev, &adapter->real_hw);
864 }
865
866 static int
867 ice_dcf_link_update(__rte_unused struct rte_eth_dev *dev,
868                     __rte_unused int wait_to_complete)
869 {
870         return 0;
871 }
872
873 static const struct eth_dev_ops ice_dcf_eth_dev_ops = {
874         .dev_start               = ice_dcf_dev_start,
875         .dev_stop                = ice_dcf_dev_stop,
876         .dev_close               = ice_dcf_dev_close,
877         .dev_configure           = ice_dcf_dev_configure,
878         .dev_infos_get           = ice_dcf_dev_info_get,
879         .rx_queue_setup          = ice_rx_queue_setup,
880         .tx_queue_setup          = ice_tx_queue_setup,
881         .rx_queue_release        = ice_rx_queue_release,
882         .tx_queue_release        = ice_tx_queue_release,
883         .rx_queue_start          = ice_dcf_rx_queue_start,
884         .tx_queue_start          = ice_dcf_tx_queue_start,
885         .rx_queue_stop           = ice_dcf_rx_queue_stop,
886         .tx_queue_stop           = ice_dcf_tx_queue_stop,
887         .link_update             = ice_dcf_link_update,
888         .stats_get               = ice_dcf_stats_get,
889         .stats_reset             = ice_dcf_stats_reset,
890         .promiscuous_enable      = ice_dcf_dev_promiscuous_enable,
891         .promiscuous_disable     = ice_dcf_dev_promiscuous_disable,
892         .allmulticast_enable     = ice_dcf_dev_allmulticast_enable,
893         .allmulticast_disable    = ice_dcf_dev_allmulticast_disable,
894         .filter_ctrl             = ice_dcf_dev_filter_ctrl,
895 };
896
897 static int
898 ice_dcf_dev_init(struct rte_eth_dev *eth_dev)
899 {
900         struct ice_dcf_adapter *adapter = eth_dev->data->dev_private;
901
902         eth_dev->dev_ops = &ice_dcf_eth_dev_ops;
903         eth_dev->rx_pkt_burst = ice_dcf_recv_pkts;
904         eth_dev->tx_pkt_burst = ice_dcf_xmit_pkts;
905
906         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
907                 return 0;
908
909         eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
910
911         adapter->real_hw.vc_event_msg_cb = ice_dcf_handle_pf_event_msg;
912         if (ice_dcf_init_hw(eth_dev, &adapter->real_hw) != 0) {
913                 PMD_INIT_LOG(ERR, "Failed to init DCF hardware");
914                 return -1;
915         }
916
917         if (ice_dcf_init_parent_adapter(eth_dev) != 0) {
918                 PMD_INIT_LOG(ERR, "Failed to init DCF parent adapter");
919                 ice_dcf_uninit_hw(eth_dev, &adapter->real_hw);
920                 return -1;
921         }
922
923         return 0;
924 }
925
926 static int
927 ice_dcf_dev_uninit(struct rte_eth_dev *eth_dev)
928 {
929         ice_dcf_dev_close(eth_dev);
930
931         return 0;
932 }
933
934 static int
935 ice_dcf_cap_check_handler(__rte_unused const char *key,
936                           const char *value, __rte_unused void *opaque)
937 {
938         if (strcmp(value, "dcf"))
939                 return -1;
940
941         return 0;
942 }
943
944 static int
945 ice_dcf_cap_selected(struct rte_devargs *devargs)
946 {
947         struct rte_kvargs *kvlist;
948         const char *key = "cap";
949         int ret = 0;
950
951         if (devargs == NULL)
952                 return 0;
953
954         kvlist = rte_kvargs_parse(devargs->args, NULL);
955         if (kvlist == NULL)
956                 return 0;
957
958         if (!rte_kvargs_count(kvlist, key))
959                 goto exit;
960
961         /* dcf capability selected when there's a key-value pair: cap=dcf */
962         if (rte_kvargs_process(kvlist, key,
963                                ice_dcf_cap_check_handler, NULL) < 0)
964                 goto exit;
965
966         ret = 1;
967
968 exit:
969         rte_kvargs_free(kvlist);
970         return ret;
971 }
972
973 static int eth_ice_dcf_pci_probe(__rte_unused struct rte_pci_driver *pci_drv,
974                              struct rte_pci_device *pci_dev)
975 {
976         if (!ice_dcf_cap_selected(pci_dev->device.devargs))
977                 return 1;
978
979         return rte_eth_dev_pci_generic_probe(pci_dev,
980                                              sizeof(struct ice_dcf_adapter),
981                                              ice_dcf_dev_init);
982 }
983
984 static int eth_ice_dcf_pci_remove(struct rte_pci_device *pci_dev)
985 {
986         return rte_eth_dev_pci_generic_remove(pci_dev, ice_dcf_dev_uninit);
987 }
988
989 static const struct rte_pci_id pci_id_ice_dcf_map[] = {
990         { RTE_PCI_DEVICE(IAVF_INTEL_VENDOR_ID, IAVF_DEV_ID_ADAPTIVE_VF) },
991         { .vendor_id = 0, /* sentinel */ },
992 };
993
994 static struct rte_pci_driver rte_ice_dcf_pmd = {
995         .id_table = pci_id_ice_dcf_map,
996         .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
997         .probe = eth_ice_dcf_pci_probe,
998         .remove = eth_ice_dcf_pci_remove,
999 };
1000
1001 RTE_PMD_REGISTER_PCI(net_ice_dcf, rte_ice_dcf_pmd);
1002 RTE_PMD_REGISTER_PCI_TABLE(net_ice_dcf, pci_id_ice_dcf_map);
1003 RTE_PMD_REGISTER_KMOD_DEP(net_ice_dcf, "* igb_uio | vfio-pci");
1004 RTE_PMD_REGISTER_PARAM_STRING(net_ice_dcf, "cap=dcf");