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8#include <linux/etherdevice.h>
9#include <linux/module.h>
10#include <linux/pci.h>
11#include <linux/net_tstamp.h>
12
13#include "otx2_common.h"
14#include "otx2_reg.h"
15#include "otx2_ptp.h"
16#include "cn10k.h"
17
18#define DRV_NAME "rvu_nicvf"
19#define DRV_STRING "Marvell RVU NIC Virtual Function Driver"
20
21static const struct pci_device_id otx2_vf_id_table[] = {
22 { PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_RVU_AFVF) },
23 { PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_RVU_VF) },
24 { }
25};
26
27MODULE_AUTHOR("Sunil Goutham <sgoutham@marvell.com>");
28MODULE_DESCRIPTION(DRV_STRING);
29MODULE_LICENSE("GPL v2");
30MODULE_DEVICE_TABLE(pci, otx2_vf_id_table);
31
32
33enum {
34 RVU_VF_INT_VEC_MBOX = 0x0,
35};
36
37static void otx2vf_process_vfaf_mbox_msg(struct otx2_nic *vf,
38 struct mbox_msghdr *msg)
39{
40 if (msg->id >= MBOX_MSG_MAX) {
41 dev_err(vf->dev,
42 "Mbox msg with unknown ID %d\n", msg->id);
43 return;
44 }
45
46 if (msg->sig != OTX2_MBOX_RSP_SIG) {
47 dev_err(vf->dev,
48 "Mbox msg with wrong signature %x, ID %d\n",
49 msg->sig, msg->id);
50 return;
51 }
52
53 if (msg->rc == MBOX_MSG_INVALID) {
54 dev_err(vf->dev,
55 "PF/AF says the sent msg(s) %d were invalid\n",
56 msg->id);
57 return;
58 }
59
60 switch (msg->id) {
61 case MBOX_MSG_READY:
62 vf->pcifunc = msg->pcifunc;
63 break;
64 case MBOX_MSG_MSIX_OFFSET:
65 mbox_handler_msix_offset(vf, (struct msix_offset_rsp *)msg);
66 break;
67 case MBOX_MSG_NPA_LF_ALLOC:
68 mbox_handler_npa_lf_alloc(vf, (struct npa_lf_alloc_rsp *)msg);
69 break;
70 case MBOX_MSG_NIX_LF_ALLOC:
71 mbox_handler_nix_lf_alloc(vf, (struct nix_lf_alloc_rsp *)msg);
72 break;
73 case MBOX_MSG_NIX_TXSCH_ALLOC:
74 mbox_handler_nix_txsch_alloc(vf,
75 (struct nix_txsch_alloc_rsp *)msg);
76 break;
77 case MBOX_MSG_NIX_BP_ENABLE:
78 mbox_handler_nix_bp_enable(vf, (struct nix_bp_cfg_rsp *)msg);
79 break;
80 default:
81 if (msg->rc)
82 dev_err(vf->dev,
83 "Mbox msg response has err %d, ID %d\n",
84 msg->rc, msg->id);
85 }
86}
87
88static void otx2vf_vfaf_mbox_handler(struct work_struct *work)
89{
90 struct otx2_mbox_dev *mdev;
91 struct mbox_hdr *rsp_hdr;
92 struct mbox_msghdr *msg;
93 struct otx2_mbox *mbox;
94 struct mbox *af_mbox;
95 int offset, id;
96
97 af_mbox = container_of(work, struct mbox, mbox_wrk);
98 mbox = &af_mbox->mbox;
99 mdev = &mbox->dev[0];
100 rsp_hdr = (struct mbox_hdr *)(mdev->mbase + mbox->rx_start);
101 if (af_mbox->num_msgs == 0)
102 return;
103 offset = mbox->rx_start + ALIGN(sizeof(*rsp_hdr), MBOX_MSG_ALIGN);
104
105 for (id = 0; id < af_mbox->num_msgs; id++) {
106 msg = (struct mbox_msghdr *)(mdev->mbase + offset);
107 otx2vf_process_vfaf_mbox_msg(af_mbox->pfvf, msg);
108 offset = mbox->rx_start + msg->next_msgoff;
109 if (mdev->msgs_acked == (af_mbox->num_msgs - 1))
110 __otx2_mbox_reset(mbox, 0);
111 mdev->msgs_acked++;
112 }
113}
114
115static int otx2vf_process_mbox_msg_up(struct otx2_nic *vf,
116 struct mbox_msghdr *req)
117{
118 struct msg_rsp *rsp;
119 int err;
120
121
122 if (req->sig != OTX2_MBOX_REQ_SIG) {
123 otx2_reply_invalid_msg(&vf->mbox.mbox_up, 0, 0, req->id);
124 return -ENODEV;
125 }
126
127 switch (req->id) {
128 case MBOX_MSG_CGX_LINK_EVENT:
129 rsp = (struct msg_rsp *)otx2_mbox_alloc_msg(
130 &vf->mbox.mbox_up, 0,
131 sizeof(struct msg_rsp));
132 if (!rsp)
133 return -ENOMEM;
134
135 rsp->hdr.id = MBOX_MSG_CGX_LINK_EVENT;
136 rsp->hdr.sig = OTX2_MBOX_RSP_SIG;
137 rsp->hdr.pcifunc = 0;
138 rsp->hdr.rc = 0;
139 err = otx2_mbox_up_handler_cgx_link_event(
140 vf, (struct cgx_link_info_msg *)req, rsp);
141 return err;
142 default:
143 otx2_reply_invalid_msg(&vf->mbox.mbox_up, 0, 0, req->id);
144 return -ENODEV;
145 }
146 return 0;
147}
148
149static void otx2vf_vfaf_mbox_up_handler(struct work_struct *work)
150{
151 struct otx2_mbox_dev *mdev;
152 struct mbox_hdr *rsp_hdr;
153 struct mbox_msghdr *msg;
154 struct otx2_mbox *mbox;
155 struct mbox *vf_mbox;
156 struct otx2_nic *vf;
157 int offset, id;
158
159 vf_mbox = container_of(work, struct mbox, mbox_up_wrk);
160 vf = vf_mbox->pfvf;
161 mbox = &vf_mbox->mbox_up;
162 mdev = &mbox->dev[0];
163
164 rsp_hdr = (struct mbox_hdr *)(mdev->mbase + mbox->rx_start);
165 if (vf_mbox->up_num_msgs == 0)
166 return;
167
168 offset = mbox->rx_start + ALIGN(sizeof(*rsp_hdr), MBOX_MSG_ALIGN);
169
170 for (id = 0; id < vf_mbox->up_num_msgs; id++) {
171 msg = (struct mbox_msghdr *)(mdev->mbase + offset);
172 otx2vf_process_mbox_msg_up(vf, msg);
173 offset = mbox->rx_start + msg->next_msgoff;
174 }
175
176 otx2_mbox_msg_send(mbox, 0);
177}
178
179static irqreturn_t otx2vf_vfaf_mbox_intr_handler(int irq, void *vf_irq)
180{
181 struct otx2_nic *vf = (struct otx2_nic *)vf_irq;
182 struct otx2_mbox_dev *mdev;
183 struct otx2_mbox *mbox;
184 struct mbox_hdr *hdr;
185
186
187 otx2_write64(vf, RVU_VF_INT, BIT_ULL(0));
188
189
190 smp_rmb();
191
192
193 mbox = &vf->mbox.mbox;
194 mdev = &mbox->dev[0];
195 otx2_sync_mbox_bbuf(mbox, 0);
196
197 trace_otx2_msg_interrupt(mbox->pdev, "PF to VF", BIT_ULL(0));
198
199 hdr = (struct mbox_hdr *)(mdev->mbase + mbox->rx_start);
200 if (hdr->num_msgs) {
201 vf->mbox.num_msgs = hdr->num_msgs;
202 hdr->num_msgs = 0;
203 memset(mbox->hwbase + mbox->rx_start, 0,
204 ALIGN(sizeof(struct mbox_hdr), sizeof(u64)));
205 queue_work(vf->mbox_wq, &vf->mbox.mbox_wrk);
206 }
207
208 mbox = &vf->mbox.mbox_up;
209 mdev = &mbox->dev[0];
210 otx2_sync_mbox_bbuf(mbox, 0);
211
212 hdr = (struct mbox_hdr *)(mdev->mbase + mbox->rx_start);
213 if (hdr->num_msgs) {
214 vf->mbox.up_num_msgs = hdr->num_msgs;
215 hdr->num_msgs = 0;
216 memset(mbox->hwbase + mbox->rx_start, 0,
217 ALIGN(sizeof(struct mbox_hdr), sizeof(u64)));
218 queue_work(vf->mbox_wq, &vf->mbox.mbox_up_wrk);
219 }
220
221 return IRQ_HANDLED;
222}
223
224static void otx2vf_disable_mbox_intr(struct otx2_nic *vf)
225{
226 int vector = pci_irq_vector(vf->pdev, RVU_VF_INT_VEC_MBOX);
227
228
229 otx2_write64(vf, RVU_VF_INT_ENA_W1C, BIT_ULL(0));
230 free_irq(vector, vf);
231}
232
233static int otx2vf_register_mbox_intr(struct otx2_nic *vf, bool probe_pf)
234{
235 struct otx2_hw *hw = &vf->hw;
236 struct msg_req *req;
237 char *irq_name;
238 int err;
239
240
241 irq_name = &hw->irq_name[RVU_VF_INT_VEC_MBOX * NAME_SIZE];
242 snprintf(irq_name, NAME_SIZE, "RVUVFAF Mbox");
243 err = request_irq(pci_irq_vector(vf->pdev, RVU_VF_INT_VEC_MBOX),
244 otx2vf_vfaf_mbox_intr_handler, 0, irq_name, vf);
245 if (err) {
246 dev_err(vf->dev,
247 "RVUPF: IRQ registration failed for VFAF mbox irq\n");
248 return err;
249 }
250
251
252
253
254 otx2_write64(vf, RVU_VF_INT, BIT_ULL(0));
255 otx2_write64(vf, RVU_VF_INT_ENA_W1S, BIT_ULL(0));
256
257 if (!probe_pf)
258 return 0;
259
260
261 req = otx2_mbox_alloc_msg_ready(&vf->mbox);
262 if (!req) {
263 otx2vf_disable_mbox_intr(vf);
264 return -ENOMEM;
265 }
266
267 err = otx2_sync_mbox_msg(&vf->mbox);
268 if (err) {
269 dev_warn(vf->dev,
270 "AF not responding to mailbox, deferring probe\n");
271 otx2vf_disable_mbox_intr(vf);
272 return -EPROBE_DEFER;
273 }
274 return 0;
275}
276
277static void otx2vf_vfaf_mbox_destroy(struct otx2_nic *vf)
278{
279 struct mbox *mbox = &vf->mbox;
280
281 if (vf->mbox_wq) {
282 destroy_workqueue(vf->mbox_wq);
283 vf->mbox_wq = NULL;
284 }
285
286 if (mbox->mbox.hwbase && !test_bit(CN10K_MBOX, &vf->hw.cap_flag))
287 iounmap((void __iomem *)mbox->mbox.hwbase);
288
289 otx2_mbox_destroy(&mbox->mbox);
290 otx2_mbox_destroy(&mbox->mbox_up);
291}
292
293static int otx2vf_vfaf_mbox_init(struct otx2_nic *vf)
294{
295 struct mbox *mbox = &vf->mbox;
296 void __iomem *hwbase;
297 int err;
298
299 mbox->pfvf = vf;
300 vf->mbox_wq = alloc_workqueue("otx2_vfaf_mailbox",
301 WQ_UNBOUND | WQ_HIGHPRI |
302 WQ_MEM_RECLAIM, 1);
303 if (!vf->mbox_wq)
304 return -ENOMEM;
305
306 if (test_bit(CN10K_MBOX, &vf->hw.cap_flag)) {
307
308
309
310 hwbase = vf->reg_base + RVU_VF_MBOX_REGION;
311 } else {
312
313
314
315
316 hwbase = ioremap_wc(pci_resource_start(vf->pdev,
317 PCI_MBOX_BAR_NUM),
318 pci_resource_len(vf->pdev,
319 PCI_MBOX_BAR_NUM));
320 if (!hwbase) {
321 dev_err(vf->dev, "Unable to map VFAF mailbox region\n");
322 err = -ENOMEM;
323 goto exit;
324 }
325 }
326
327 err = otx2_mbox_init(&mbox->mbox, hwbase, vf->pdev, vf->reg_base,
328 MBOX_DIR_VFPF, 1);
329 if (err)
330 goto exit;
331
332 err = otx2_mbox_init(&mbox->mbox_up, hwbase, vf->pdev, vf->reg_base,
333 MBOX_DIR_VFPF_UP, 1);
334 if (err)
335 goto exit;
336
337 err = otx2_mbox_bbuf_init(mbox, vf->pdev);
338 if (err)
339 goto exit;
340
341 INIT_WORK(&mbox->mbox_wrk, otx2vf_vfaf_mbox_handler);
342 INIT_WORK(&mbox->mbox_up_wrk, otx2vf_vfaf_mbox_up_handler);
343 mutex_init(&mbox->lock);
344
345 return 0;
346exit:
347 if (hwbase && !test_bit(CN10K_MBOX, &vf->hw.cap_flag))
348 iounmap(hwbase);
349 destroy_workqueue(vf->mbox_wq);
350 return err;
351}
352
353static int otx2vf_open(struct net_device *netdev)
354{
355 struct otx2_nic *vf;
356 int err;
357
358 err = otx2_open(netdev);
359 if (err)
360 return err;
361
362
363 vf = netdev_priv(netdev);
364 if (is_otx2_lbkvf(vf->pdev)) {
365 pr_info("%s NIC Link is UP\n", netdev->name);
366 netif_carrier_on(netdev);
367 netif_tx_start_all_queues(netdev);
368 }
369
370 return 0;
371}
372
373static int otx2vf_stop(struct net_device *netdev)
374{
375 return otx2_stop(netdev);
376}
377
378static netdev_tx_t otx2vf_xmit(struct sk_buff *skb, struct net_device *netdev)
379{
380 struct otx2_nic *vf = netdev_priv(netdev);
381 int qidx = skb_get_queue_mapping(skb);
382 struct otx2_snd_queue *sq;
383 struct netdev_queue *txq;
384
385 sq = &vf->qset.sq[qidx];
386 txq = netdev_get_tx_queue(netdev, qidx);
387
388 if (!otx2_sq_append_skb(netdev, sq, skb, qidx)) {
389 netif_tx_stop_queue(txq);
390
391
392 smp_mb();
393 if (((sq->num_sqbs - *sq->aura_fc_addr) * sq->sqe_per_sqb)
394 > sq->sqe_thresh)
395 netif_tx_wake_queue(txq);
396
397 return NETDEV_TX_BUSY;
398 }
399
400 return NETDEV_TX_OK;
401}
402
403static void otx2vf_set_rx_mode(struct net_device *netdev)
404{
405 struct otx2_nic *vf = netdev_priv(netdev);
406
407 queue_work(vf->otx2_wq, &vf->rx_mode_work);
408}
409
410static void otx2vf_do_set_rx_mode(struct work_struct *work)
411{
412 struct otx2_nic *vf = container_of(work, struct otx2_nic, rx_mode_work);
413 struct net_device *netdev = vf->netdev;
414 unsigned int flags = netdev->flags;
415 struct nix_rx_mode *req;
416
417 mutex_lock(&vf->mbox.lock);
418
419 req = otx2_mbox_alloc_msg_nix_set_rx_mode(&vf->mbox);
420 if (!req) {
421 mutex_unlock(&vf->mbox.lock);
422 return;
423 }
424
425 req->mode = NIX_RX_MODE_UCAST;
426
427 if (flags & IFF_PROMISC)
428 req->mode |= NIX_RX_MODE_PROMISC;
429 if (flags & (IFF_ALLMULTI | IFF_MULTICAST))
430 req->mode |= NIX_RX_MODE_ALLMULTI;
431
432 req->mode |= NIX_RX_MODE_USE_MCE;
433
434 otx2_sync_mbox_msg(&vf->mbox);
435
436 mutex_unlock(&vf->mbox.lock);
437}
438
439static int otx2vf_change_mtu(struct net_device *netdev, int new_mtu)
440{
441 bool if_up = netif_running(netdev);
442 int err = 0;
443
444 if (if_up)
445 otx2vf_stop(netdev);
446
447 netdev_info(netdev, "Changing MTU from %d to %d\n",
448 netdev->mtu, new_mtu);
449 netdev->mtu = new_mtu;
450
451 if (if_up)
452 err = otx2vf_open(netdev);
453
454 return err;
455}
456
457static void otx2vf_reset_task(struct work_struct *work)
458{
459 struct otx2_nic *vf = container_of(work, struct otx2_nic, reset_task);
460
461 rtnl_lock();
462
463 if (netif_running(vf->netdev)) {
464 otx2vf_stop(vf->netdev);
465 vf->reset_count++;
466 otx2vf_open(vf->netdev);
467 }
468
469 rtnl_unlock();
470}
471
472static int otx2vf_set_features(struct net_device *netdev,
473 netdev_features_t features)
474{
475 return otx2_handle_ntuple_tc_features(netdev, features);
476}
477
478static const struct net_device_ops otx2vf_netdev_ops = {
479 .ndo_open = otx2vf_open,
480 .ndo_stop = otx2vf_stop,
481 .ndo_start_xmit = otx2vf_xmit,
482 .ndo_set_rx_mode = otx2vf_set_rx_mode,
483 .ndo_set_mac_address = otx2_set_mac_address,
484 .ndo_change_mtu = otx2vf_change_mtu,
485 .ndo_set_features = otx2vf_set_features,
486 .ndo_get_stats64 = otx2_get_stats64,
487 .ndo_tx_timeout = otx2_tx_timeout,
488 .ndo_eth_ioctl = otx2_ioctl,
489 .ndo_setup_tc = otx2_setup_tc,
490};
491
492static int otx2_wq_init(struct otx2_nic *vf)
493{
494 vf->otx2_wq = create_singlethread_workqueue("otx2vf_wq");
495 if (!vf->otx2_wq)
496 return -ENOMEM;
497
498 INIT_WORK(&vf->rx_mode_work, otx2vf_do_set_rx_mode);
499 INIT_WORK(&vf->reset_task, otx2vf_reset_task);
500 return 0;
501}
502
503static int otx2vf_realloc_msix_vectors(struct otx2_nic *vf)
504{
505 struct otx2_hw *hw = &vf->hw;
506 int num_vec, err;
507
508 num_vec = hw->nix_msixoff;
509 num_vec += NIX_LF_CINT_VEC_START + hw->max_queues;
510
511 otx2vf_disable_mbox_intr(vf);
512 pci_free_irq_vectors(hw->pdev);
513 err = pci_alloc_irq_vectors(hw->pdev, num_vec, num_vec, PCI_IRQ_MSIX);
514 if (err < 0) {
515 dev_err(vf->dev, "%s: Failed to realloc %d IRQ vectors\n",
516 __func__, num_vec);
517 return err;
518 }
519
520 return otx2vf_register_mbox_intr(vf, false);
521}
522
523static int otx2vf_probe(struct pci_dev *pdev, const struct pci_device_id *id)
524{
525 int num_vec = pci_msix_vec_count(pdev);
526 struct device *dev = &pdev->dev;
527 struct net_device *netdev;
528 struct otx2_nic *vf;
529 struct otx2_hw *hw;
530 int err, qcount;
531
532 err = pcim_enable_device(pdev);
533 if (err) {
534 dev_err(dev, "Failed to enable PCI device\n");
535 return err;
536 }
537
538 err = pci_request_regions(pdev, DRV_NAME);
539 if (err) {
540 dev_err(dev, "PCI request regions failed 0x%x\n", err);
541 return err;
542 }
543
544 err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(48));
545 if (err) {
546 dev_err(dev, "DMA mask config failed, abort\n");
547 goto err_release_regions;
548 }
549
550 pci_set_master(pdev);
551
552 qcount = num_online_cpus();
553 netdev = alloc_etherdev_mqs(sizeof(*vf), qcount, qcount);
554 if (!netdev) {
555 err = -ENOMEM;
556 goto err_release_regions;
557 }
558
559 pci_set_drvdata(pdev, netdev);
560 SET_NETDEV_DEV(netdev, &pdev->dev);
561 vf = netdev_priv(netdev);
562 vf->netdev = netdev;
563 vf->pdev = pdev;
564 vf->dev = dev;
565 vf->iommu_domain = iommu_get_domain_for_dev(dev);
566
567 vf->flags |= OTX2_FLAG_INTF_DOWN;
568 hw = &vf->hw;
569 hw->pdev = vf->pdev;
570 hw->rx_queues = qcount;
571 hw->tx_queues = qcount;
572 hw->max_queues = qcount;
573 hw->tot_tx_queues = qcount;
574 hw->rbuf_len = OTX2_DEFAULT_RBUF_LEN;
575
576 hw->xqe_size = 128;
577
578 hw->irq_name = devm_kmalloc_array(&hw->pdev->dev, num_vec, NAME_SIZE,
579 GFP_KERNEL);
580 if (!hw->irq_name) {
581 err = -ENOMEM;
582 goto err_free_netdev;
583 }
584
585 hw->affinity_mask = devm_kcalloc(&hw->pdev->dev, num_vec,
586 sizeof(cpumask_var_t), GFP_KERNEL);
587 if (!hw->affinity_mask) {
588 err = -ENOMEM;
589 goto err_free_netdev;
590 }
591
592 err = pci_alloc_irq_vectors(hw->pdev, num_vec, num_vec, PCI_IRQ_MSIX);
593 if (err < 0) {
594 dev_err(dev, "%s: Failed to alloc %d IRQ vectors\n",
595 __func__, num_vec);
596 goto err_free_netdev;
597 }
598
599 vf->reg_base = pcim_iomap(pdev, PCI_CFG_REG_BAR_NUM, 0);
600 if (!vf->reg_base) {
601 dev_err(dev, "Unable to map physical function CSRs, aborting\n");
602 err = -ENOMEM;
603 goto err_free_irq_vectors;
604 }
605
606 otx2_setup_dev_hw_settings(vf);
607
608 err = otx2vf_vfaf_mbox_init(vf);
609 if (err)
610 goto err_free_irq_vectors;
611
612
613 err = otx2vf_register_mbox_intr(vf, true);
614 if (err)
615 goto err_mbox_destroy;
616
617
618 err = otx2_attach_npa_nix(vf);
619 if (err)
620 goto err_disable_mbox_intr;
621
622 err = otx2vf_realloc_msix_vectors(vf);
623 if (err)
624 goto err_mbox_destroy;
625
626 err = otx2_set_real_num_queues(netdev, qcount, qcount);
627 if (err)
628 goto err_detach_rsrc;
629
630 err = cn10k_lmtst_init(vf);
631 if (err)
632 goto err_detach_rsrc;
633
634
635 otx2_ptp_init(vf);
636
637
638 otx2_get_mac_from_af(netdev);
639
640 netdev->hw_features = NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
641 NETIF_F_IPV6_CSUM | NETIF_F_RXHASH |
642 NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
643 NETIF_F_GSO_UDP_L4;
644 netdev->features = netdev->hw_features;
645
646 netdev->vlan_features |= netdev->features;
647 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX |
648 NETIF_F_HW_VLAN_STAG_TX;
649 netdev->features |= netdev->hw_features;
650
651 netdev->hw_features |= NETIF_F_NTUPLE;
652 netdev->hw_features |= NETIF_F_RXALL;
653 netdev->hw_features |= NETIF_F_HW_TC;
654
655 netif_set_gso_max_segs(netdev, OTX2_MAX_GSO_SEGS);
656 netdev->watchdog_timeo = OTX2_TX_TIMEOUT;
657
658 netdev->netdev_ops = &otx2vf_netdev_ops;
659
660 netdev->min_mtu = OTX2_MIN_MTU;
661 netdev->max_mtu = otx2_get_max_mtu(vf);
662
663
664 if (is_otx2_lbkvf(vf->pdev)) {
665 int n;
666
667 n = (vf->pcifunc >> RVU_PFVF_FUNC_SHIFT) & RVU_PFVF_FUNC_MASK;
668
669 n -= 1;
670 snprintf(netdev->name, sizeof(netdev->name), "lbk%d", n);
671 }
672
673 err = register_netdev(netdev);
674 if (err) {
675 dev_err(dev, "Failed to register netdevice\n");
676 goto err_ptp_destroy;
677 }
678
679 err = otx2_wq_init(vf);
680 if (err)
681 goto err_unreg_netdev;
682
683 otx2vf_set_ethtool_ops(netdev);
684
685 err = otx2vf_mcam_flow_init(vf);
686 if (err)
687 goto err_unreg_netdev;
688
689 err = otx2_init_tc(vf);
690 if (err)
691 goto err_unreg_netdev;
692
693 err = otx2_register_dl(vf);
694 if (err)
695 goto err_shutdown_tc;
696
697#ifdef CONFIG_DCB
698 err = otx2_dcbnl_set_ops(netdev);
699 if (err)
700 goto err_shutdown_tc;
701#endif
702
703 return 0;
704
705err_shutdown_tc:
706 otx2_shutdown_tc(vf);
707err_unreg_netdev:
708 unregister_netdev(netdev);
709err_ptp_destroy:
710 otx2_ptp_destroy(vf);
711err_detach_rsrc:
712 if (test_bit(CN10K_LMTST, &vf->hw.cap_flag))
713 qmem_free(vf->dev, vf->dync_lmt);
714 otx2_detach_resources(&vf->mbox);
715err_disable_mbox_intr:
716 otx2vf_disable_mbox_intr(vf);
717err_mbox_destroy:
718 otx2vf_vfaf_mbox_destroy(vf);
719err_free_irq_vectors:
720 pci_free_irq_vectors(hw->pdev);
721err_free_netdev:
722 pci_set_drvdata(pdev, NULL);
723 free_netdev(netdev);
724err_release_regions:
725 pci_release_regions(pdev);
726 return err;
727}
728
729static void otx2vf_remove(struct pci_dev *pdev)
730{
731 struct net_device *netdev = pci_get_drvdata(pdev);
732 struct otx2_nic *vf;
733
734 if (!netdev)
735 return;
736
737 vf = netdev_priv(netdev);
738
739
740 if (vf->flags & OTX2_FLAG_RX_PAUSE_ENABLED ||
741 (vf->flags & OTX2_FLAG_TX_PAUSE_ENABLED)) {
742 vf->flags &= ~OTX2_FLAG_RX_PAUSE_ENABLED;
743 vf->flags &= ~OTX2_FLAG_TX_PAUSE_ENABLED;
744 otx2_config_pause_frm(vf);
745 }
746
747#ifdef CONFIG_DCB
748
749 if (vf->pfc_en) {
750 vf->pfc_en = 0;
751 otx2_config_priority_flow_ctrl(vf);
752 }
753#endif
754
755 cancel_work_sync(&vf->reset_task);
756 otx2_unregister_dl(vf);
757 unregister_netdev(netdev);
758 if (vf->otx2_wq)
759 destroy_workqueue(vf->otx2_wq);
760 otx2_ptp_destroy(vf);
761 otx2vf_disable_mbox_intr(vf);
762 otx2_detach_resources(&vf->mbox);
763 if (test_bit(CN10K_LMTST, &vf->hw.cap_flag))
764 qmem_free(vf->dev, vf->dync_lmt);
765 otx2vf_vfaf_mbox_destroy(vf);
766 pci_free_irq_vectors(vf->pdev);
767 pci_set_drvdata(pdev, NULL);
768 free_netdev(netdev);
769
770 pci_release_regions(pdev);
771}
772
773static struct pci_driver otx2vf_driver = {
774 .name = DRV_NAME,
775 .id_table = otx2_vf_id_table,
776 .probe = otx2vf_probe,
777 .remove = otx2vf_remove,
778 .shutdown = otx2vf_remove,
779};
780
781static int __init otx2vf_init_module(void)
782{
783 pr_info("%s: %s\n", DRV_NAME, DRV_STRING);
784
785 return pci_register_driver(&otx2vf_driver);
786}
787
788static void __exit otx2vf_cleanup_module(void)
789{
790 pci_unregister_driver(&otx2vf_driver);
791}
792
793module_init(otx2vf_init_module);
794module_exit(otx2vf_cleanup_module);
795
