1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2017 - 2019 Pensando Systems, Inc */
4 #include <linux/printk.h>
5 #include <linux/dynamic_debug.h>
6 #include <linux/netdevice.h>
7 #include <linux/etherdevice.h>
8 #include <linux/rtnetlink.h>
9 #include <linux/interrupt.h>
10 #include <linux/pci.h>
11 #include <linux/cpumask.h>
14 #include "ionic_bus.h"
15 #include "ionic_lif.h"
16 #include "ionic_txrx.h"
17 #include "ionic_ethtool.h"
18 #include "ionic_debugfs.h"
20 /* queuetype support level */
21 static const u8 ionic_qtype_versions[IONIC_QTYPE_MAX] = {
22 [IONIC_QTYPE_ADMINQ] = 0, /* 0 = Base version with CQ support */
23 [IONIC_QTYPE_NOTIFYQ] = 0, /* 0 = Base version */
24 [IONIC_QTYPE_RXQ] = 0, /* 0 = Base version with CQ+SG support */
25 [IONIC_QTYPE_TXQ] = 1, /* 0 = Base version with CQ+SG support
26 * 1 = ... with Tx SG version 1
30 static void ionic_lif_rx_mode(struct ionic_lif *lif, unsigned int rx_mode);
31 static int ionic_lif_addr_add(struct ionic_lif *lif, const u8 *addr);
32 static int ionic_lif_addr_del(struct ionic_lif *lif, const u8 *addr);
33 static void ionic_link_status_check(struct ionic_lif *lif);
34 static void ionic_lif_handle_fw_down(struct ionic_lif *lif);
35 static void ionic_lif_handle_fw_up(struct ionic_lif *lif);
36 static void ionic_lif_set_netdev_info(struct ionic_lif *lif);
38 static int ionic_start_queues(struct ionic_lif *lif);
39 static void ionic_stop_queues(struct ionic_lif *lif);
40 static void ionic_lif_queue_identify(struct ionic_lif *lif);
42 static void ionic_lif_deferred_work(struct work_struct *work)
44 struct ionic_lif *lif = container_of(work, struct ionic_lif, deferred.work);
45 struct ionic_deferred *def = &lif->deferred;
46 struct ionic_deferred_work *w = NULL;
48 spin_lock_bh(&def->lock);
49 if (!list_empty(&def->list)) {
50 w = list_first_entry(&def->list,
51 struct ionic_deferred_work, list);
54 spin_unlock_bh(&def->lock);
58 case IONIC_DW_TYPE_RX_MODE:
59 ionic_lif_rx_mode(lif, w->rx_mode);
61 case IONIC_DW_TYPE_RX_ADDR_ADD:
62 ionic_lif_addr_add(lif, w->addr);
64 case IONIC_DW_TYPE_RX_ADDR_DEL:
65 ionic_lif_addr_del(lif, w->addr);
67 case IONIC_DW_TYPE_LINK_STATUS:
68 ionic_link_status_check(lif);
70 case IONIC_DW_TYPE_LIF_RESET:
72 ionic_lif_handle_fw_up(lif);
74 ionic_lif_handle_fw_down(lif);
80 schedule_work(&def->work);
84 void ionic_lif_deferred_enqueue(struct ionic_deferred *def,
85 struct ionic_deferred_work *work)
87 spin_lock_bh(&def->lock);
88 list_add_tail(&work->list, &def->list);
89 spin_unlock_bh(&def->lock);
90 schedule_work(&def->work);
93 static void ionic_link_status_check(struct ionic_lif *lif)
95 struct net_device *netdev = lif->netdev;
99 if (!test_bit(IONIC_LIF_F_LINK_CHECK_REQUESTED, lif->state) ||
100 test_bit(IONIC_LIF_F_QUEUE_RESET, lif->state))
103 link_status = le16_to_cpu(lif->info->status.link_status);
104 link_up = link_status == IONIC_PORT_OPER_STATUS_UP;
107 if (!netif_carrier_ok(netdev)) {
110 ionic_port_identify(lif->ionic);
111 link_speed = le32_to_cpu(lif->info->status.link_speed);
112 netdev_info(netdev, "Link up - %d Gbps\n",
114 netif_carrier_on(netdev);
117 if (lif->netdev->flags & IFF_UP && netif_running(lif->netdev))
118 ionic_start_queues(lif);
120 if (netif_carrier_ok(netdev)) {
121 netdev_info(netdev, "Link down\n");
122 netif_carrier_off(netdev);
125 if (lif->netdev->flags & IFF_UP && netif_running(lif->netdev))
126 ionic_stop_queues(lif);
129 clear_bit(IONIC_LIF_F_LINK_CHECK_REQUESTED, lif->state);
132 void ionic_link_status_check_request(struct ionic_lif *lif)
134 struct ionic_deferred_work *work;
136 /* we only need one request outstanding at a time */
137 if (test_and_set_bit(IONIC_LIF_F_LINK_CHECK_REQUESTED, lif->state))
140 if (in_interrupt()) {
141 work = kzalloc(sizeof(*work), GFP_ATOMIC);
145 work->type = IONIC_DW_TYPE_LINK_STATUS;
146 ionic_lif_deferred_enqueue(&lif->deferred, work);
148 ionic_link_status_check(lif);
152 static irqreturn_t ionic_isr(int irq, void *data)
154 struct napi_struct *napi = data;
156 napi_schedule_irqoff(napi);
161 static int ionic_request_irq(struct ionic_lif *lif, struct ionic_qcq *qcq)
163 struct ionic_intr_info *intr = &qcq->intr;
164 struct device *dev = lif->ionic->dev;
165 struct ionic_queue *q = &qcq->q;
169 name = lif->netdev->name;
171 name = dev_name(dev);
173 snprintf(intr->name, sizeof(intr->name),
174 "%s-%s-%s", IONIC_DRV_NAME, name, q->name);
176 return devm_request_irq(dev, intr->vector, ionic_isr,
177 0, intr->name, &qcq->napi);
180 static int ionic_intr_alloc(struct ionic_lif *lif, struct ionic_intr_info *intr)
182 struct ionic *ionic = lif->ionic;
185 index = find_first_zero_bit(ionic->intrs, ionic->nintrs);
186 if (index == ionic->nintrs) {
187 netdev_warn(lif->netdev, "%s: no intr, index=%d nintrs=%d\n",
188 __func__, index, ionic->nintrs);
192 set_bit(index, ionic->intrs);
193 ionic_intr_init(&ionic->idev, intr, index);
198 static void ionic_intr_free(struct ionic *ionic, int index)
200 if (index != IONIC_INTR_INDEX_NOT_ASSIGNED && index < ionic->nintrs)
201 clear_bit(index, ionic->intrs);
204 static int ionic_qcq_enable(struct ionic_qcq *qcq)
206 struct ionic_queue *q = &qcq->q;
207 struct ionic_lif *lif = q->lif;
208 struct ionic_dev *idev;
211 struct ionic_admin_ctx ctx = {
212 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work),
214 .opcode = IONIC_CMD_Q_CONTROL,
215 .lif_index = cpu_to_le16(lif->index),
217 .index = cpu_to_le32(q->index),
218 .oper = IONIC_Q_ENABLE,
222 idev = &lif->ionic->idev;
223 dev = lif->ionic->dev;
225 dev_dbg(dev, "q_enable.index %d q_enable.qtype %d\n",
226 ctx.cmd.q_control.index, ctx.cmd.q_control.type);
228 if (qcq->flags & IONIC_QCQ_F_INTR) {
229 irq_set_affinity_hint(qcq->intr.vector,
230 &qcq->intr.affinity_mask);
231 napi_enable(&qcq->napi);
232 ionic_intr_clean(idev->intr_ctrl, qcq->intr.index);
233 ionic_intr_mask(idev->intr_ctrl, qcq->intr.index,
234 IONIC_INTR_MASK_CLEAR);
237 return ionic_adminq_post_wait(lif, &ctx);
240 static int ionic_qcq_disable(struct ionic_qcq *qcq)
242 struct ionic_queue *q = &qcq->q;
243 struct ionic_lif *lif = q->lif;
244 struct ionic_dev *idev;
247 struct ionic_admin_ctx ctx = {
248 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work),
250 .opcode = IONIC_CMD_Q_CONTROL,
251 .lif_index = cpu_to_le16(lif->index),
253 .index = cpu_to_le32(q->index),
254 .oper = IONIC_Q_DISABLE,
258 idev = &lif->ionic->idev;
259 dev = lif->ionic->dev;
261 dev_dbg(dev, "q_disable.index %d q_disable.qtype %d\n",
262 ctx.cmd.q_control.index, ctx.cmd.q_control.type);
264 if (qcq->flags & IONIC_QCQ_F_INTR) {
265 ionic_intr_mask(idev->intr_ctrl, qcq->intr.index,
266 IONIC_INTR_MASK_SET);
267 synchronize_irq(qcq->intr.vector);
268 irq_set_affinity_hint(qcq->intr.vector, NULL);
269 napi_disable(&qcq->napi);
272 return ionic_adminq_post_wait(lif, &ctx);
275 static void ionic_lif_qcq_deinit(struct ionic_lif *lif, struct ionic_qcq *qcq)
277 struct ionic_dev *idev = &lif->ionic->idev;
282 if (!(qcq->flags & IONIC_QCQ_F_INITED))
285 if (qcq->flags & IONIC_QCQ_F_INTR) {
286 ionic_intr_mask(idev->intr_ctrl, qcq->intr.index,
287 IONIC_INTR_MASK_SET);
288 netif_napi_del(&qcq->napi);
291 qcq->flags &= ~IONIC_QCQ_F_INITED;
294 static void ionic_qcq_free(struct ionic_lif *lif, struct ionic_qcq *qcq)
296 struct device *dev = lif->ionic->dev;
301 ionic_debugfs_del_qcq(qcq);
303 dma_free_coherent(dev, qcq->total_size, qcq->base, qcq->base_pa);
307 if (qcq->flags & IONIC_QCQ_F_INTR) {
308 irq_set_affinity_hint(qcq->intr.vector, NULL);
309 devm_free_irq(dev, qcq->intr.vector, &qcq->napi);
310 qcq->intr.vector = 0;
311 ionic_intr_free(lif->ionic, qcq->intr.index);
314 devm_kfree(dev, qcq->cq.info);
316 devm_kfree(dev, qcq->q.info);
318 devm_kfree(dev, qcq);
321 static void ionic_qcqs_free(struct ionic_lif *lif)
323 struct device *dev = lif->ionic->dev;
326 if (lif->notifyqcq) {
327 ionic_qcq_free(lif, lif->notifyqcq);
328 lif->notifyqcq = NULL;
332 ionic_qcq_free(lif, lif->adminqcq);
333 lif->adminqcq = NULL;
337 for (i = 0; i < lif->nxqs; i++)
338 if (lif->rxqcqs[i].stats)
339 devm_kfree(dev, lif->rxqcqs[i].stats);
340 devm_kfree(dev, lif->rxqcqs);
345 for (i = 0; i < lif->nxqs; i++)
346 if (lif->txqcqs[i].stats)
347 devm_kfree(dev, lif->txqcqs[i].stats);
348 devm_kfree(dev, lif->txqcqs);
353 static void ionic_link_qcq_interrupts(struct ionic_qcq *src_qcq,
354 struct ionic_qcq *n_qcq)
356 if (WARN_ON(n_qcq->flags & IONIC_QCQ_F_INTR)) {
357 ionic_intr_free(n_qcq->cq.lif->ionic, n_qcq->intr.index);
358 n_qcq->flags &= ~IONIC_QCQ_F_INTR;
361 n_qcq->intr.vector = src_qcq->intr.vector;
362 n_qcq->intr.index = src_qcq->intr.index;
365 static int ionic_qcq_alloc(struct ionic_lif *lif, unsigned int type,
367 const char *name, unsigned int flags,
368 unsigned int num_descs, unsigned int desc_size,
369 unsigned int cq_desc_size,
370 unsigned int sg_desc_size,
371 unsigned int pid, struct ionic_qcq **qcq)
373 struct ionic_dev *idev = &lif->ionic->idev;
374 u32 q_size, cq_size, sg_size, total_size;
375 struct device *dev = lif->ionic->dev;
376 void *q_base, *cq_base, *sg_base;
377 dma_addr_t cq_base_pa = 0;
378 dma_addr_t sg_base_pa = 0;
379 dma_addr_t q_base_pa = 0;
380 struct ionic_qcq *new;
385 q_size = num_descs * desc_size;
386 cq_size = num_descs * cq_desc_size;
387 sg_size = num_descs * sg_desc_size;
389 total_size = ALIGN(q_size, PAGE_SIZE) + ALIGN(cq_size, PAGE_SIZE);
390 /* Note: aligning q_size/cq_size is not enough due to cq_base
391 * address aligning as q_base could be not aligned to the page.
394 total_size += PAGE_SIZE;
395 if (flags & IONIC_QCQ_F_SG) {
396 total_size += ALIGN(sg_size, PAGE_SIZE);
397 total_size += PAGE_SIZE;
400 new = devm_kzalloc(dev, sizeof(*new), GFP_KERNEL);
402 netdev_err(lif->netdev, "Cannot allocate queue structure\n");
409 new->q.info = devm_kzalloc(dev, sizeof(*new->q.info) * num_descs,
412 netdev_err(lif->netdev, "Cannot allocate queue info\n");
419 err = ionic_q_init(lif, idev, &new->q, index, name, num_descs,
420 desc_size, sg_desc_size, pid);
422 netdev_err(lif->netdev, "Cannot initialize queue\n");
426 if (flags & IONIC_QCQ_F_INTR) {
427 err = ionic_intr_alloc(lif, &new->intr);
429 netdev_warn(lif->netdev, "no intr for %s: %d\n",
434 err = ionic_bus_get_irq(lif->ionic, new->intr.index);
436 netdev_warn(lif->netdev, "no vector for %s: %d\n",
438 goto err_out_free_intr;
440 new->intr.vector = err;
441 ionic_intr_mask_assert(idev->intr_ctrl, new->intr.index,
442 IONIC_INTR_MASK_SET);
444 err = ionic_request_irq(lif, new);
446 netdev_warn(lif->netdev, "irq request failed %d\n", err);
447 goto err_out_free_intr;
450 new->intr.cpu = cpumask_local_spread(new->intr.index,
452 if (new->intr.cpu != -1)
453 cpumask_set_cpu(new->intr.cpu,
454 &new->intr.affinity_mask);
456 new->intr.index = IONIC_INTR_INDEX_NOT_ASSIGNED;
459 new->cq.info = devm_kzalloc(dev, sizeof(*new->cq.info) * num_descs,
462 netdev_err(lif->netdev, "Cannot allocate completion queue info\n");
464 goto err_out_free_irq;
467 err = ionic_cq_init(lif, &new->cq, &new->intr, num_descs, cq_desc_size);
469 netdev_err(lif->netdev, "Cannot initialize completion queue\n");
470 goto err_out_free_irq;
473 new->base = dma_alloc_coherent(dev, total_size, &new->base_pa,
476 netdev_err(lif->netdev, "Cannot allocate queue DMA memory\n");
478 goto err_out_free_irq;
481 new->total_size = total_size;
484 q_base_pa = new->base_pa;
486 cq_base = (void *)ALIGN((uintptr_t)q_base + q_size, PAGE_SIZE);
487 cq_base_pa = ALIGN(q_base_pa + q_size, PAGE_SIZE);
489 if (flags & IONIC_QCQ_F_SG) {
490 sg_base = (void *)ALIGN((uintptr_t)cq_base + cq_size,
492 sg_base_pa = ALIGN(cq_base_pa + cq_size, PAGE_SIZE);
493 ionic_q_sg_map(&new->q, sg_base, sg_base_pa);
496 ionic_q_map(&new->q, q_base, q_base_pa);
497 ionic_cq_map(&new->cq, cq_base, cq_base_pa);
498 ionic_cq_bind(&new->cq, &new->q);
505 if (flags & IONIC_QCQ_F_INTR)
506 devm_free_irq(dev, new->intr.vector, &new->napi);
508 if (flags & IONIC_QCQ_F_INTR)
509 ionic_intr_free(lif->ionic, new->intr.index);
511 dev_err(dev, "qcq alloc of %s%d failed %d\n", name, index, err);
515 static int ionic_qcqs_alloc(struct ionic_lif *lif)
517 struct device *dev = lif->ionic->dev;
518 unsigned int q_list_size;
523 flags = IONIC_QCQ_F_INTR;
524 err = ionic_qcq_alloc(lif, IONIC_QTYPE_ADMINQ, 0, "admin", flags,
526 sizeof(struct ionic_admin_cmd),
527 sizeof(struct ionic_admin_comp),
528 0, lif->kern_pid, &lif->adminqcq);
531 ionic_debugfs_add_qcq(lif, lif->adminqcq);
533 if (lif->ionic->nnqs_per_lif) {
534 flags = IONIC_QCQ_F_NOTIFYQ;
535 err = ionic_qcq_alloc(lif, IONIC_QTYPE_NOTIFYQ, 0, "notifyq",
536 flags, IONIC_NOTIFYQ_LENGTH,
537 sizeof(struct ionic_notifyq_cmd),
538 sizeof(union ionic_notifyq_comp),
539 0, lif->kern_pid, &lif->notifyqcq);
541 goto err_out_free_adminqcq;
542 ionic_debugfs_add_qcq(lif, lif->notifyqcq);
544 /* Let the notifyq ride on the adminq interrupt */
545 ionic_link_qcq_interrupts(lif->adminqcq, lif->notifyqcq);
548 q_list_size = sizeof(*lif->txqcqs) * lif->nxqs;
550 lif->txqcqs = devm_kzalloc(dev, q_list_size, GFP_KERNEL);
552 goto err_out_free_notifyqcq;
553 for (i = 0; i < lif->nxqs; i++) {
554 lif->txqcqs[i].stats = devm_kzalloc(dev,
555 sizeof(struct ionic_q_stats),
557 if (!lif->txqcqs[i].stats)
558 goto err_out_free_tx_stats;
561 lif->rxqcqs = devm_kzalloc(dev, q_list_size, GFP_KERNEL);
563 goto err_out_free_tx_stats;
564 for (i = 0; i < lif->nxqs; i++) {
565 lif->rxqcqs[i].stats = devm_kzalloc(dev,
566 sizeof(struct ionic_q_stats),
568 if (!lif->rxqcqs[i].stats)
569 goto err_out_free_rx_stats;
574 err_out_free_rx_stats:
575 for (i = 0; i < lif->nxqs; i++)
576 if (lif->rxqcqs[i].stats)
577 devm_kfree(dev, lif->rxqcqs[i].stats);
578 devm_kfree(dev, lif->rxqcqs);
580 err_out_free_tx_stats:
581 for (i = 0; i < lif->nxqs; i++)
582 if (lif->txqcqs[i].stats)
583 devm_kfree(dev, lif->txqcqs[i].stats);
584 devm_kfree(dev, lif->txqcqs);
586 err_out_free_notifyqcq:
587 if (lif->notifyqcq) {
588 ionic_qcq_free(lif, lif->notifyqcq);
589 lif->notifyqcq = NULL;
591 err_out_free_adminqcq:
592 ionic_qcq_free(lif, lif->adminqcq);
593 lif->adminqcq = NULL;
598 static int ionic_lif_txq_init(struct ionic_lif *lif, struct ionic_qcq *qcq)
600 struct device *dev = lif->ionic->dev;
601 struct ionic_queue *q = &qcq->q;
602 struct ionic_cq *cq = &qcq->cq;
603 struct ionic_admin_ctx ctx = {
604 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work),
606 .opcode = IONIC_CMD_Q_INIT,
607 .lif_index = cpu_to_le16(lif->index),
609 .ver = lif->qtype_info[q->type].version,
610 .index = cpu_to_le32(q->index),
611 .flags = cpu_to_le16(IONIC_QINIT_F_IRQ |
613 .intr_index = cpu_to_le16(lif->rxqcqs[q->index].qcq->intr.index),
614 .pid = cpu_to_le16(q->pid),
615 .ring_size = ilog2(q->num_descs),
616 .ring_base = cpu_to_le64(q->base_pa),
617 .cq_ring_base = cpu_to_le64(cq->base_pa),
618 .sg_ring_base = cpu_to_le64(q->sg_base_pa),
623 dev_dbg(dev, "txq_init.pid %d\n", ctx.cmd.q_init.pid);
624 dev_dbg(dev, "txq_init.index %d\n", ctx.cmd.q_init.index);
625 dev_dbg(dev, "txq_init.ring_base 0x%llx\n", ctx.cmd.q_init.ring_base);
626 dev_dbg(dev, "txq_init.ring_size %d\n", ctx.cmd.q_init.ring_size);
627 dev_dbg(dev, "txq_init.flags 0x%x\n", ctx.cmd.q_init.flags);
628 dev_dbg(dev, "txq_init.ver %d\n", ctx.cmd.q_init.ver);
634 err = ionic_adminq_post_wait(lif, &ctx);
638 q->hw_type = ctx.comp.q_init.hw_type;
639 q->hw_index = le32_to_cpu(ctx.comp.q_init.hw_index);
640 q->dbval = IONIC_DBELL_QID(q->hw_index);
642 dev_dbg(dev, "txq->hw_type %d\n", q->hw_type);
643 dev_dbg(dev, "txq->hw_index %d\n", q->hw_index);
645 qcq->flags |= IONIC_QCQ_F_INITED;
650 static int ionic_lif_rxq_init(struct ionic_lif *lif, struct ionic_qcq *qcq)
652 struct device *dev = lif->ionic->dev;
653 struct ionic_queue *q = &qcq->q;
654 struct ionic_cq *cq = &qcq->cq;
655 struct ionic_admin_ctx ctx = {
656 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work),
658 .opcode = IONIC_CMD_Q_INIT,
659 .lif_index = cpu_to_le16(lif->index),
661 .ver = lif->qtype_info[q->type].version,
662 .index = cpu_to_le32(q->index),
663 .flags = cpu_to_le16(IONIC_QINIT_F_IRQ |
665 .intr_index = cpu_to_le16(cq->bound_intr->index),
666 .pid = cpu_to_le16(q->pid),
667 .ring_size = ilog2(q->num_descs),
668 .ring_base = cpu_to_le64(q->base_pa),
669 .cq_ring_base = cpu_to_le64(cq->base_pa),
670 .sg_ring_base = cpu_to_le64(q->sg_base_pa),
675 dev_dbg(dev, "rxq_init.pid %d\n", ctx.cmd.q_init.pid);
676 dev_dbg(dev, "rxq_init.index %d\n", ctx.cmd.q_init.index);
677 dev_dbg(dev, "rxq_init.ring_base 0x%llx\n", ctx.cmd.q_init.ring_base);
678 dev_dbg(dev, "rxq_init.ring_size %d\n", ctx.cmd.q_init.ring_size);
679 dev_dbg(dev, "rxq_init.flags 0x%x\n", ctx.cmd.q_init.flags);
680 dev_dbg(dev, "rxq_init.ver %d\n", ctx.cmd.q_init.ver);
686 err = ionic_adminq_post_wait(lif, &ctx);
690 q->hw_type = ctx.comp.q_init.hw_type;
691 q->hw_index = le32_to_cpu(ctx.comp.q_init.hw_index);
692 q->dbval = IONIC_DBELL_QID(q->hw_index);
694 dev_dbg(dev, "rxq->hw_type %d\n", q->hw_type);
695 dev_dbg(dev, "rxq->hw_index %d\n", q->hw_index);
697 netif_napi_add(lif->netdev, &qcq->napi, ionic_rx_napi,
700 qcq->flags |= IONIC_QCQ_F_INITED;
705 static bool ionic_notifyq_service(struct ionic_cq *cq,
706 struct ionic_cq_info *cq_info)
708 union ionic_notifyq_comp *comp = cq_info->cq_desc;
709 struct ionic_deferred_work *work;
710 struct net_device *netdev;
711 struct ionic_queue *q;
712 struct ionic_lif *lif;
716 lif = q->info[0].cb_arg;
717 netdev = lif->netdev;
718 eid = le64_to_cpu(comp->event.eid);
720 /* Have we run out of new completions to process? */
721 if (eid <= lif->last_eid)
726 dev_dbg(lif->ionic->dev, "notifyq event:\n");
727 dynamic_hex_dump("event ", DUMP_PREFIX_OFFSET, 16, 1,
728 comp, sizeof(*comp), true);
730 switch (le16_to_cpu(comp->event.ecode)) {
731 case IONIC_EVENT_LINK_CHANGE:
732 ionic_link_status_check_request(lif);
734 case IONIC_EVENT_RESET:
735 work = kzalloc(sizeof(*work), GFP_ATOMIC);
737 netdev_err(lif->netdev, "%s OOM\n", __func__);
739 work->type = IONIC_DW_TYPE_LIF_RESET;
740 ionic_lif_deferred_enqueue(&lif->deferred, work);
744 netdev_warn(netdev, "Notifyq event ecode=%d eid=%lld\n",
745 comp->event.ecode, eid);
752 static int ionic_notifyq_clean(struct ionic_lif *lif, int budget)
754 struct ionic_dev *idev = &lif->ionic->idev;
755 struct ionic_cq *cq = &lif->notifyqcq->cq;
758 work_done = ionic_cq_service(cq, budget, ionic_notifyq_service,
761 ionic_intr_credits(idev->intr_ctrl, cq->bound_intr->index,
762 work_done, IONIC_INTR_CRED_RESET_COALESCE);
767 static bool ionic_adminq_service(struct ionic_cq *cq,
768 struct ionic_cq_info *cq_info)
770 struct ionic_admin_comp *comp = cq_info->cq_desc;
772 if (!color_match(comp->color, cq->done_color))
775 ionic_q_service(cq->bound_q, cq_info, le16_to_cpu(comp->comp_index));
780 static int ionic_adminq_napi(struct napi_struct *napi, int budget)
782 struct ionic_lif *lif = napi_to_cq(napi)->lif;
786 if (likely(lif->notifyqcq && lif->notifyqcq->flags & IONIC_QCQ_F_INITED))
787 n_work = ionic_notifyq_clean(lif, budget);
788 a_work = ionic_napi(napi, budget, ionic_adminq_service, NULL, NULL);
790 return max(n_work, a_work);
793 void ionic_get_stats64(struct net_device *netdev,
794 struct rtnl_link_stats64 *ns)
796 struct ionic_lif *lif = netdev_priv(netdev);
797 struct ionic_lif_stats *ls;
799 memset(ns, 0, sizeof(*ns));
800 ls = &lif->info->stats;
802 ns->rx_packets = le64_to_cpu(ls->rx_ucast_packets) +
803 le64_to_cpu(ls->rx_mcast_packets) +
804 le64_to_cpu(ls->rx_bcast_packets);
806 ns->tx_packets = le64_to_cpu(ls->tx_ucast_packets) +
807 le64_to_cpu(ls->tx_mcast_packets) +
808 le64_to_cpu(ls->tx_bcast_packets);
810 ns->rx_bytes = le64_to_cpu(ls->rx_ucast_bytes) +
811 le64_to_cpu(ls->rx_mcast_bytes) +
812 le64_to_cpu(ls->rx_bcast_bytes);
814 ns->tx_bytes = le64_to_cpu(ls->tx_ucast_bytes) +
815 le64_to_cpu(ls->tx_mcast_bytes) +
816 le64_to_cpu(ls->tx_bcast_bytes);
818 ns->rx_dropped = le64_to_cpu(ls->rx_ucast_drop_packets) +
819 le64_to_cpu(ls->rx_mcast_drop_packets) +
820 le64_to_cpu(ls->rx_bcast_drop_packets);
822 ns->tx_dropped = le64_to_cpu(ls->tx_ucast_drop_packets) +
823 le64_to_cpu(ls->tx_mcast_drop_packets) +
824 le64_to_cpu(ls->tx_bcast_drop_packets);
826 ns->multicast = le64_to_cpu(ls->rx_mcast_packets);
828 ns->rx_over_errors = le64_to_cpu(ls->rx_queue_empty);
830 ns->rx_missed_errors = le64_to_cpu(ls->rx_dma_error) +
831 le64_to_cpu(ls->rx_queue_disabled) +
832 le64_to_cpu(ls->rx_desc_fetch_error) +
833 le64_to_cpu(ls->rx_desc_data_error);
835 ns->tx_aborted_errors = le64_to_cpu(ls->tx_dma_error) +
836 le64_to_cpu(ls->tx_queue_disabled) +
837 le64_to_cpu(ls->tx_desc_fetch_error) +
838 le64_to_cpu(ls->tx_desc_data_error);
840 ns->rx_errors = ns->rx_over_errors +
841 ns->rx_missed_errors;
843 ns->tx_errors = ns->tx_aborted_errors;
846 static int ionic_lif_addr_add(struct ionic_lif *lif, const u8 *addr)
848 struct ionic_admin_ctx ctx = {
849 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work),
850 .cmd.rx_filter_add = {
851 .opcode = IONIC_CMD_RX_FILTER_ADD,
852 .lif_index = cpu_to_le16(lif->index),
853 .match = cpu_to_le16(IONIC_RX_FILTER_MATCH_MAC),
856 struct ionic_rx_filter *f;
859 /* don't bother if we already have it */
860 spin_lock_bh(&lif->rx_filters.lock);
861 f = ionic_rx_filter_by_addr(lif, addr);
862 spin_unlock_bh(&lif->rx_filters.lock);
866 netdev_dbg(lif->netdev, "rx_filter add ADDR %pM (id %d)\n", addr,
867 ctx.comp.rx_filter_add.filter_id);
869 memcpy(ctx.cmd.rx_filter_add.mac.addr, addr, ETH_ALEN);
870 err = ionic_adminq_post_wait(lif, &ctx);
871 if (err && err != -EEXIST)
874 return ionic_rx_filter_save(lif, 0, IONIC_RXQ_INDEX_ANY, 0, &ctx);
877 static int ionic_lif_addr_del(struct ionic_lif *lif, const u8 *addr)
879 struct ionic_admin_ctx ctx = {
880 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work),
881 .cmd.rx_filter_del = {
882 .opcode = IONIC_CMD_RX_FILTER_DEL,
883 .lif_index = cpu_to_le16(lif->index),
886 struct ionic_rx_filter *f;
889 spin_lock_bh(&lif->rx_filters.lock);
890 f = ionic_rx_filter_by_addr(lif, addr);
892 spin_unlock_bh(&lif->rx_filters.lock);
896 ctx.cmd.rx_filter_del.filter_id = cpu_to_le32(f->filter_id);
897 ionic_rx_filter_free(lif, f);
898 spin_unlock_bh(&lif->rx_filters.lock);
900 err = ionic_adminq_post_wait(lif, &ctx);
901 if (err && err != -EEXIST)
904 netdev_dbg(lif->netdev, "rx_filter del ADDR %pM (id %d)\n", addr,
905 ctx.cmd.rx_filter_del.filter_id);
910 static int ionic_lif_addr(struct ionic_lif *lif, const u8 *addr, bool add)
912 struct ionic *ionic = lif->ionic;
913 struct ionic_deferred_work *work;
914 unsigned int nmfilters;
915 unsigned int nufilters;
918 /* Do we have space for this filter? We test the counters
919 * here before checking the need for deferral so that we
920 * can return an overflow error to the stack.
922 nmfilters = le32_to_cpu(ionic->ident.lif.eth.max_mcast_filters);
923 nufilters = le32_to_cpu(ionic->ident.lif.eth.max_ucast_filters);
925 if ((is_multicast_ether_addr(addr) && lif->nmcast < nmfilters))
927 else if (!is_multicast_ether_addr(addr) &&
928 lif->nucast < nufilters)
933 if (is_multicast_ether_addr(addr) && lif->nmcast)
935 else if (!is_multicast_ether_addr(addr) && lif->nucast)
939 if (in_interrupt()) {
940 work = kzalloc(sizeof(*work), GFP_ATOMIC);
942 netdev_err(lif->netdev, "%s OOM\n", __func__);
945 work->type = add ? IONIC_DW_TYPE_RX_ADDR_ADD :
946 IONIC_DW_TYPE_RX_ADDR_DEL;
947 memcpy(work->addr, addr, ETH_ALEN);
948 netdev_dbg(lif->netdev, "deferred: rx_filter %s %pM\n",
949 add ? "add" : "del", addr);
950 ionic_lif_deferred_enqueue(&lif->deferred, work);
952 netdev_dbg(lif->netdev, "rx_filter %s %pM\n",
953 add ? "add" : "del", addr);
955 return ionic_lif_addr_add(lif, addr);
957 return ionic_lif_addr_del(lif, addr);
963 static int ionic_addr_add(struct net_device *netdev, const u8 *addr)
965 return ionic_lif_addr(netdev_priv(netdev), addr, true);
968 static int ionic_addr_del(struct net_device *netdev, const u8 *addr)
970 return ionic_lif_addr(netdev_priv(netdev), addr, false);
973 static void ionic_lif_rx_mode(struct ionic_lif *lif, unsigned int rx_mode)
975 struct ionic_admin_ctx ctx = {
976 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work),
978 .opcode = IONIC_CMD_RX_MODE_SET,
979 .lif_index = cpu_to_le16(lif->index),
980 .rx_mode = cpu_to_le16(rx_mode),
986 #define REMAIN(__x) (sizeof(buf) - (__x))
988 i = scnprintf(buf, sizeof(buf), "rx_mode 0x%04x -> 0x%04x:",
989 lif->rx_mode, rx_mode);
990 if (rx_mode & IONIC_RX_MODE_F_UNICAST)
991 i += scnprintf(&buf[i], REMAIN(i), " RX_MODE_F_UNICAST");
992 if (rx_mode & IONIC_RX_MODE_F_MULTICAST)
993 i += scnprintf(&buf[i], REMAIN(i), " RX_MODE_F_MULTICAST");
994 if (rx_mode & IONIC_RX_MODE_F_BROADCAST)
995 i += scnprintf(&buf[i], REMAIN(i), " RX_MODE_F_BROADCAST");
996 if (rx_mode & IONIC_RX_MODE_F_PROMISC)
997 i += scnprintf(&buf[i], REMAIN(i), " RX_MODE_F_PROMISC");
998 if (rx_mode & IONIC_RX_MODE_F_ALLMULTI)
999 i += scnprintf(&buf[i], REMAIN(i), " RX_MODE_F_ALLMULTI");
1000 netdev_dbg(lif->netdev, "lif%d %s\n", lif->index, buf);
1002 err = ionic_adminq_post_wait(lif, &ctx);
1004 netdev_warn(lif->netdev, "set rx_mode 0x%04x failed: %d\n",
1007 lif->rx_mode = rx_mode;
1010 static void _ionic_lif_rx_mode(struct ionic_lif *lif, unsigned int rx_mode)
1012 struct ionic_deferred_work *work;
1014 if (in_interrupt()) {
1015 work = kzalloc(sizeof(*work), GFP_ATOMIC);
1017 netdev_err(lif->netdev, "%s OOM\n", __func__);
1020 work->type = IONIC_DW_TYPE_RX_MODE;
1021 work->rx_mode = rx_mode;
1022 netdev_dbg(lif->netdev, "deferred: rx_mode\n");
1023 ionic_lif_deferred_enqueue(&lif->deferred, work);
1025 ionic_lif_rx_mode(lif, rx_mode);
1029 static void ionic_set_rx_mode(struct net_device *netdev)
1031 struct ionic_lif *lif = netdev_priv(netdev);
1032 struct ionic_identity *ident;
1033 unsigned int nfilters;
1034 unsigned int rx_mode;
1036 ident = &lif->ionic->ident;
1038 rx_mode = IONIC_RX_MODE_F_UNICAST;
1039 rx_mode |= (netdev->flags & IFF_MULTICAST) ? IONIC_RX_MODE_F_MULTICAST : 0;
1040 rx_mode |= (netdev->flags & IFF_BROADCAST) ? IONIC_RX_MODE_F_BROADCAST : 0;
1041 rx_mode |= (netdev->flags & IFF_PROMISC) ? IONIC_RX_MODE_F_PROMISC : 0;
1042 rx_mode |= (netdev->flags & IFF_ALLMULTI) ? IONIC_RX_MODE_F_ALLMULTI : 0;
1044 /* sync unicast addresses
1045 * next check to see if we're in an overflow state
1046 * if so, we track that we overflowed and enable NIC PROMISC
1047 * else if the overflow is set and not needed
1048 * we remove our overflow flag and check the netdev flags
1049 * to see if we can disable NIC PROMISC
1051 __dev_uc_sync(netdev, ionic_addr_add, ionic_addr_del);
1052 nfilters = le32_to_cpu(ident->lif.eth.max_ucast_filters);
1053 if (netdev_uc_count(netdev) + 1 > nfilters) {
1054 rx_mode |= IONIC_RX_MODE_F_PROMISC;
1055 lif->uc_overflow = true;
1056 } else if (lif->uc_overflow) {
1057 lif->uc_overflow = false;
1058 if (!(netdev->flags & IFF_PROMISC))
1059 rx_mode &= ~IONIC_RX_MODE_F_PROMISC;
1062 /* same for multicast */
1063 __dev_mc_sync(netdev, ionic_addr_add, ionic_addr_del);
1064 nfilters = le32_to_cpu(ident->lif.eth.max_mcast_filters);
1065 if (netdev_mc_count(netdev) > nfilters) {
1066 rx_mode |= IONIC_RX_MODE_F_ALLMULTI;
1067 lif->mc_overflow = true;
1068 } else if (lif->mc_overflow) {
1069 lif->mc_overflow = false;
1070 if (!(netdev->flags & IFF_ALLMULTI))
1071 rx_mode &= ~IONIC_RX_MODE_F_ALLMULTI;
1074 if (lif->rx_mode != rx_mode)
1075 _ionic_lif_rx_mode(lif, rx_mode);
1078 static __le64 ionic_netdev_features_to_nic(netdev_features_t features)
1082 if (features & NETIF_F_HW_VLAN_CTAG_TX)
1083 wanted |= IONIC_ETH_HW_VLAN_TX_TAG;
1084 if (features & NETIF_F_HW_VLAN_CTAG_RX)
1085 wanted |= IONIC_ETH_HW_VLAN_RX_STRIP;
1086 if (features & NETIF_F_HW_VLAN_CTAG_FILTER)
1087 wanted |= IONIC_ETH_HW_VLAN_RX_FILTER;
1088 if (features & NETIF_F_RXHASH)
1089 wanted |= IONIC_ETH_HW_RX_HASH;
1090 if (features & NETIF_F_RXCSUM)
1091 wanted |= IONIC_ETH_HW_RX_CSUM;
1092 if (features & NETIF_F_SG)
1093 wanted |= IONIC_ETH_HW_TX_SG;
1094 if (features & NETIF_F_HW_CSUM)
1095 wanted |= IONIC_ETH_HW_TX_CSUM;
1096 if (features & NETIF_F_TSO)
1097 wanted |= IONIC_ETH_HW_TSO;
1098 if (features & NETIF_F_TSO6)
1099 wanted |= IONIC_ETH_HW_TSO_IPV6;
1100 if (features & NETIF_F_TSO_ECN)
1101 wanted |= IONIC_ETH_HW_TSO_ECN;
1102 if (features & NETIF_F_GSO_GRE)
1103 wanted |= IONIC_ETH_HW_TSO_GRE;
1104 if (features & NETIF_F_GSO_GRE_CSUM)
1105 wanted |= IONIC_ETH_HW_TSO_GRE_CSUM;
1106 if (features & NETIF_F_GSO_IPXIP4)
1107 wanted |= IONIC_ETH_HW_TSO_IPXIP4;
1108 if (features & NETIF_F_GSO_IPXIP6)
1109 wanted |= IONIC_ETH_HW_TSO_IPXIP6;
1110 if (features & NETIF_F_GSO_UDP_TUNNEL)
1111 wanted |= IONIC_ETH_HW_TSO_UDP;
1112 if (features & NETIF_F_GSO_UDP_TUNNEL_CSUM)
1113 wanted |= IONIC_ETH_HW_TSO_UDP_CSUM;
1115 return cpu_to_le64(wanted);
1118 static int ionic_set_nic_features(struct ionic_lif *lif,
1119 netdev_features_t features)
1121 struct device *dev = lif->ionic->dev;
1122 struct ionic_admin_ctx ctx = {
1123 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work),
1124 .cmd.lif_setattr = {
1125 .opcode = IONIC_CMD_LIF_SETATTR,
1126 .index = cpu_to_le16(lif->index),
1127 .attr = IONIC_LIF_ATTR_FEATURES,
1130 u64 vlan_flags = IONIC_ETH_HW_VLAN_TX_TAG |
1131 IONIC_ETH_HW_VLAN_RX_STRIP |
1132 IONIC_ETH_HW_VLAN_RX_FILTER;
1133 u64 old_hw_features;
1136 ctx.cmd.lif_setattr.features = ionic_netdev_features_to_nic(features);
1137 err = ionic_adminq_post_wait(lif, &ctx);
1141 old_hw_features = lif->hw_features;
1142 lif->hw_features = le64_to_cpu(ctx.cmd.lif_setattr.features &
1143 ctx.comp.lif_setattr.features);
1145 if ((old_hw_features ^ lif->hw_features) & IONIC_ETH_HW_RX_HASH)
1146 ionic_lif_rss_config(lif, lif->rss_types, NULL, NULL);
1148 if ((vlan_flags & features) &&
1149 !(vlan_flags & le64_to_cpu(ctx.comp.lif_setattr.features)))
1150 dev_info_once(lif->ionic->dev, "NIC is not supporting vlan offload, likely in SmartNIC mode\n");
1152 if (lif->hw_features & IONIC_ETH_HW_VLAN_TX_TAG)
1153 dev_dbg(dev, "feature ETH_HW_VLAN_TX_TAG\n");
1154 if (lif->hw_features & IONIC_ETH_HW_VLAN_RX_STRIP)
1155 dev_dbg(dev, "feature ETH_HW_VLAN_RX_STRIP\n");
1156 if (lif->hw_features & IONIC_ETH_HW_VLAN_RX_FILTER)
1157 dev_dbg(dev, "feature ETH_HW_VLAN_RX_FILTER\n");
1158 if (lif->hw_features & IONIC_ETH_HW_RX_HASH)
1159 dev_dbg(dev, "feature ETH_HW_RX_HASH\n");
1160 if (lif->hw_features & IONIC_ETH_HW_TX_SG)
1161 dev_dbg(dev, "feature ETH_HW_TX_SG\n");
1162 if (lif->hw_features & IONIC_ETH_HW_TX_CSUM)
1163 dev_dbg(dev, "feature ETH_HW_TX_CSUM\n");
1164 if (lif->hw_features & IONIC_ETH_HW_RX_CSUM)
1165 dev_dbg(dev, "feature ETH_HW_RX_CSUM\n");
1166 if (lif->hw_features & IONIC_ETH_HW_TSO)
1167 dev_dbg(dev, "feature ETH_HW_TSO\n");
1168 if (lif->hw_features & IONIC_ETH_HW_TSO_IPV6)
1169 dev_dbg(dev, "feature ETH_HW_TSO_IPV6\n");
1170 if (lif->hw_features & IONIC_ETH_HW_TSO_ECN)
1171 dev_dbg(dev, "feature ETH_HW_TSO_ECN\n");
1172 if (lif->hw_features & IONIC_ETH_HW_TSO_GRE)
1173 dev_dbg(dev, "feature ETH_HW_TSO_GRE\n");
1174 if (lif->hw_features & IONIC_ETH_HW_TSO_GRE_CSUM)
1175 dev_dbg(dev, "feature ETH_HW_TSO_GRE_CSUM\n");
1176 if (lif->hw_features & IONIC_ETH_HW_TSO_IPXIP4)
1177 dev_dbg(dev, "feature ETH_HW_TSO_IPXIP4\n");
1178 if (lif->hw_features & IONIC_ETH_HW_TSO_IPXIP6)
1179 dev_dbg(dev, "feature ETH_HW_TSO_IPXIP6\n");
1180 if (lif->hw_features & IONIC_ETH_HW_TSO_UDP)
1181 dev_dbg(dev, "feature ETH_HW_TSO_UDP\n");
1182 if (lif->hw_features & IONIC_ETH_HW_TSO_UDP_CSUM)
1183 dev_dbg(dev, "feature ETH_HW_TSO_UDP_CSUM\n");
1188 static int ionic_init_nic_features(struct ionic_lif *lif)
1190 struct net_device *netdev = lif->netdev;
1191 netdev_features_t features;
1194 /* set up what we expect to support by default */
1195 features = NETIF_F_HW_VLAN_CTAG_TX |
1196 NETIF_F_HW_VLAN_CTAG_RX |
1197 NETIF_F_HW_VLAN_CTAG_FILTER |
1206 err = ionic_set_nic_features(lif, features);
1210 /* tell the netdev what we actually can support */
1211 netdev->features |= NETIF_F_HIGHDMA;
1213 if (lif->hw_features & IONIC_ETH_HW_VLAN_TX_TAG)
1214 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
1215 if (lif->hw_features & IONIC_ETH_HW_VLAN_RX_STRIP)
1216 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
1217 if (lif->hw_features & IONIC_ETH_HW_VLAN_RX_FILTER)
1218 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER;
1219 if (lif->hw_features & IONIC_ETH_HW_RX_HASH)
1220 netdev->hw_features |= NETIF_F_RXHASH;
1221 if (lif->hw_features & IONIC_ETH_HW_TX_SG)
1222 netdev->hw_features |= NETIF_F_SG;
1224 if (lif->hw_features & IONIC_ETH_HW_TX_CSUM)
1225 netdev->hw_enc_features |= NETIF_F_HW_CSUM;
1226 if (lif->hw_features & IONIC_ETH_HW_RX_CSUM)
1227 netdev->hw_enc_features |= NETIF_F_RXCSUM;
1228 if (lif->hw_features & IONIC_ETH_HW_TSO)
1229 netdev->hw_enc_features |= NETIF_F_TSO;
1230 if (lif->hw_features & IONIC_ETH_HW_TSO_IPV6)
1231 netdev->hw_enc_features |= NETIF_F_TSO6;
1232 if (lif->hw_features & IONIC_ETH_HW_TSO_ECN)
1233 netdev->hw_enc_features |= NETIF_F_TSO_ECN;
1234 if (lif->hw_features & IONIC_ETH_HW_TSO_GRE)
1235 netdev->hw_enc_features |= NETIF_F_GSO_GRE;
1236 if (lif->hw_features & IONIC_ETH_HW_TSO_GRE_CSUM)
1237 netdev->hw_enc_features |= NETIF_F_GSO_GRE_CSUM;
1238 if (lif->hw_features & IONIC_ETH_HW_TSO_IPXIP4)
1239 netdev->hw_enc_features |= NETIF_F_GSO_IPXIP4;
1240 if (lif->hw_features & IONIC_ETH_HW_TSO_IPXIP6)
1241 netdev->hw_enc_features |= NETIF_F_GSO_IPXIP6;
1242 if (lif->hw_features & IONIC_ETH_HW_TSO_UDP)
1243 netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL;
1244 if (lif->hw_features & IONIC_ETH_HW_TSO_UDP_CSUM)
1245 netdev->hw_enc_features |= NETIF_F_GSO_UDP_TUNNEL_CSUM;
1247 netdev->hw_features |= netdev->hw_enc_features;
1248 netdev->features |= netdev->hw_features;
1249 netdev->vlan_features |= netdev->features & ~NETIF_F_VLAN_FEATURES;
1251 netdev->priv_flags |= IFF_UNICAST_FLT |
1252 IFF_LIVE_ADDR_CHANGE;
1257 static int ionic_set_features(struct net_device *netdev,
1258 netdev_features_t features)
1260 struct ionic_lif *lif = netdev_priv(netdev);
1263 netdev_dbg(netdev, "%s: lif->features=0x%08llx new_features=0x%08llx\n",
1264 __func__, (u64)lif->netdev->features, (u64)features);
1266 err = ionic_set_nic_features(lif, features);
1271 static int ionic_set_mac_address(struct net_device *netdev, void *sa)
1273 struct sockaddr *addr = sa;
1277 mac = (u8 *)addr->sa_data;
1278 if (ether_addr_equal(netdev->dev_addr, mac))
1281 err = eth_prepare_mac_addr_change(netdev, addr);
1285 if (!is_zero_ether_addr(netdev->dev_addr)) {
1286 netdev_info(netdev, "deleting mac addr %pM\n",
1288 ionic_addr_del(netdev, netdev->dev_addr);
1291 eth_commit_mac_addr_change(netdev, addr);
1292 netdev_info(netdev, "updating mac addr %pM\n", mac);
1294 return ionic_addr_add(netdev, mac);
1297 static int ionic_change_mtu(struct net_device *netdev, int new_mtu)
1299 struct ionic_lif *lif = netdev_priv(netdev);
1300 struct ionic_admin_ctx ctx = {
1301 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work),
1302 .cmd.lif_setattr = {
1303 .opcode = IONIC_CMD_LIF_SETATTR,
1304 .index = cpu_to_le16(lif->index),
1305 .attr = IONIC_LIF_ATTR_MTU,
1306 .mtu = cpu_to_le32(new_mtu),
1311 err = ionic_adminq_post_wait(lif, &ctx);
1315 netdev->mtu = new_mtu;
1316 err = ionic_reset_queues(lif);
1321 static void ionic_tx_timeout_work(struct work_struct *ws)
1323 struct ionic_lif *lif = container_of(ws, struct ionic_lif, tx_timeout_work);
1325 netdev_info(lif->netdev, "Tx Timeout recovery\n");
1328 ionic_reset_queues(lif);
1332 static void ionic_tx_timeout(struct net_device *netdev, unsigned int txqueue)
1334 struct ionic_lif *lif = netdev_priv(netdev);
1336 schedule_work(&lif->tx_timeout_work);
1339 static int ionic_vlan_rx_add_vid(struct net_device *netdev, __be16 proto,
1342 struct ionic_lif *lif = netdev_priv(netdev);
1343 struct ionic_admin_ctx ctx = {
1344 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work),
1345 .cmd.rx_filter_add = {
1346 .opcode = IONIC_CMD_RX_FILTER_ADD,
1347 .lif_index = cpu_to_le16(lif->index),
1348 .match = cpu_to_le16(IONIC_RX_FILTER_MATCH_VLAN),
1349 .vlan.vlan = cpu_to_le16(vid),
1354 err = ionic_adminq_post_wait(lif, &ctx);
1358 netdev_dbg(netdev, "rx_filter add VLAN %d (id %d)\n", vid,
1359 ctx.comp.rx_filter_add.filter_id);
1361 return ionic_rx_filter_save(lif, 0, IONIC_RXQ_INDEX_ANY, 0, &ctx);
1364 static int ionic_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto,
1367 struct ionic_lif *lif = netdev_priv(netdev);
1368 struct ionic_admin_ctx ctx = {
1369 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work),
1370 .cmd.rx_filter_del = {
1371 .opcode = IONIC_CMD_RX_FILTER_DEL,
1372 .lif_index = cpu_to_le16(lif->index),
1375 struct ionic_rx_filter *f;
1377 spin_lock_bh(&lif->rx_filters.lock);
1379 f = ionic_rx_filter_by_vlan(lif, vid);
1381 spin_unlock_bh(&lif->rx_filters.lock);
1385 netdev_dbg(netdev, "rx_filter del VLAN %d (id %d)\n", vid,
1386 le32_to_cpu(ctx.cmd.rx_filter_del.filter_id));
1388 ctx.cmd.rx_filter_del.filter_id = cpu_to_le32(f->filter_id);
1389 ionic_rx_filter_free(lif, f);
1390 spin_unlock_bh(&lif->rx_filters.lock);
1392 return ionic_adminq_post_wait(lif, &ctx);
1395 int ionic_lif_rss_config(struct ionic_lif *lif, const u16 types,
1396 const u8 *key, const u32 *indir)
1398 struct ionic_admin_ctx ctx = {
1399 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work),
1400 .cmd.lif_setattr = {
1401 .opcode = IONIC_CMD_LIF_SETATTR,
1402 .attr = IONIC_LIF_ATTR_RSS,
1403 .rss.addr = cpu_to_le64(lif->rss_ind_tbl_pa),
1406 unsigned int i, tbl_sz;
1408 if (lif->hw_features & IONIC_ETH_HW_RX_HASH) {
1409 lif->rss_types = types;
1410 ctx.cmd.lif_setattr.rss.types = cpu_to_le16(types);
1414 memcpy(lif->rss_hash_key, key, IONIC_RSS_HASH_KEY_SIZE);
1417 tbl_sz = le16_to_cpu(lif->ionic->ident.lif.eth.rss_ind_tbl_sz);
1418 for (i = 0; i < tbl_sz; i++)
1419 lif->rss_ind_tbl[i] = indir[i];
1422 memcpy(ctx.cmd.lif_setattr.rss.key, lif->rss_hash_key,
1423 IONIC_RSS_HASH_KEY_SIZE);
1425 return ionic_adminq_post_wait(lif, &ctx);
1428 static int ionic_lif_rss_init(struct ionic_lif *lif)
1430 unsigned int tbl_sz;
1433 lif->rss_types = IONIC_RSS_TYPE_IPV4 |
1434 IONIC_RSS_TYPE_IPV4_TCP |
1435 IONIC_RSS_TYPE_IPV4_UDP |
1436 IONIC_RSS_TYPE_IPV6 |
1437 IONIC_RSS_TYPE_IPV6_TCP |
1438 IONIC_RSS_TYPE_IPV6_UDP;
1440 /* Fill indirection table with 'default' values */
1441 tbl_sz = le16_to_cpu(lif->ionic->ident.lif.eth.rss_ind_tbl_sz);
1442 for (i = 0; i < tbl_sz; i++)
1443 lif->rss_ind_tbl[i] = ethtool_rxfh_indir_default(i, lif->nxqs);
1445 return ionic_lif_rss_config(lif, lif->rss_types, NULL, NULL);
1448 static void ionic_lif_rss_deinit(struct ionic_lif *lif)
1452 tbl_sz = le16_to_cpu(lif->ionic->ident.lif.eth.rss_ind_tbl_sz);
1453 memset(lif->rss_ind_tbl, 0, tbl_sz);
1454 memset(lif->rss_hash_key, 0, IONIC_RSS_HASH_KEY_SIZE);
1456 ionic_lif_rss_config(lif, 0x0, NULL, NULL);
1459 static void ionic_txrx_disable(struct ionic_lif *lif)
1465 for (i = 0; i < lif->nxqs; i++) {
1466 err = ionic_qcq_disable(lif->txqcqs[i].qcq);
1467 if (err == -ETIMEDOUT)
1473 for (i = 0; i < lif->nxqs; i++) {
1474 err = ionic_qcq_disable(lif->rxqcqs[i].qcq);
1475 if (err == -ETIMEDOUT)
1481 static void ionic_txrx_deinit(struct ionic_lif *lif)
1486 for (i = 0; i < lif->nxqs; i++) {
1487 ionic_lif_qcq_deinit(lif, lif->txqcqs[i].qcq);
1488 ionic_tx_flush(&lif->txqcqs[i].qcq->cq);
1489 ionic_tx_empty(&lif->txqcqs[i].qcq->q);
1494 for (i = 0; i < lif->nxqs; i++) {
1495 ionic_lif_qcq_deinit(lif, lif->rxqcqs[i].qcq);
1496 ionic_rx_flush(&lif->rxqcqs[i].qcq->cq);
1497 ionic_rx_empty(&lif->rxqcqs[i].qcq->q);
1503 static void ionic_txrx_free(struct ionic_lif *lif)
1508 for (i = 0; i < lif->nxqs; i++) {
1509 ionic_qcq_free(lif, lif->txqcqs[i].qcq);
1510 lif->txqcqs[i].qcq = NULL;
1515 for (i = 0; i < lif->nxqs; i++) {
1516 ionic_qcq_free(lif, lif->rxqcqs[i].qcq);
1517 lif->rxqcqs[i].qcq = NULL;
1522 static int ionic_txrx_alloc(struct ionic_lif *lif)
1524 unsigned int sg_desc_sz;
1529 if (lif->qtype_info[IONIC_QTYPE_TXQ].version >= 1 &&
1530 lif->qtype_info[IONIC_QTYPE_TXQ].sg_desc_sz ==
1531 sizeof(struct ionic_txq_sg_desc_v1))
1532 sg_desc_sz = sizeof(struct ionic_txq_sg_desc_v1);
1534 sg_desc_sz = sizeof(struct ionic_txq_sg_desc);
1536 flags = IONIC_QCQ_F_TX_STATS | IONIC_QCQ_F_SG;
1537 for (i = 0; i < lif->nxqs; i++) {
1538 err = ionic_qcq_alloc(lif, IONIC_QTYPE_TXQ, i, "tx", flags,
1540 sizeof(struct ionic_txq_desc),
1541 sizeof(struct ionic_txq_comp),
1543 lif->kern_pid, &lif->txqcqs[i].qcq);
1547 lif->txqcqs[i].qcq->stats = lif->txqcqs[i].stats;
1548 ionic_debugfs_add_qcq(lif, lif->txqcqs[i].qcq);
1551 flags = IONIC_QCQ_F_RX_STATS | IONIC_QCQ_F_SG | IONIC_QCQ_F_INTR;
1552 for (i = 0; i < lif->nxqs; i++) {
1553 err = ionic_qcq_alloc(lif, IONIC_QTYPE_RXQ, i, "rx", flags,
1555 sizeof(struct ionic_rxq_desc),
1556 sizeof(struct ionic_rxq_comp),
1557 sizeof(struct ionic_rxq_sg_desc),
1558 lif->kern_pid, &lif->rxqcqs[i].qcq);
1562 lif->rxqcqs[i].qcq->stats = lif->rxqcqs[i].stats;
1564 ionic_intr_coal_init(lif->ionic->idev.intr_ctrl,
1565 lif->rxqcqs[i].qcq->intr.index,
1566 lif->rx_coalesce_hw);
1567 ionic_link_qcq_interrupts(lif->rxqcqs[i].qcq,
1568 lif->txqcqs[i].qcq);
1569 ionic_debugfs_add_qcq(lif, lif->rxqcqs[i].qcq);
1575 ionic_txrx_free(lif);
1580 static int ionic_txrx_init(struct ionic_lif *lif)
1585 for (i = 0; i < lif->nxqs; i++) {
1586 err = ionic_lif_txq_init(lif, lif->txqcqs[i].qcq);
1590 err = ionic_lif_rxq_init(lif, lif->rxqcqs[i].qcq);
1592 ionic_lif_qcq_deinit(lif, lif->txqcqs[i].qcq);
1597 if (lif->netdev->features & NETIF_F_RXHASH)
1598 ionic_lif_rss_init(lif);
1600 ionic_set_rx_mode(lif->netdev);
1606 ionic_lif_qcq_deinit(lif, lif->txqcqs[i].qcq);
1607 ionic_lif_qcq_deinit(lif, lif->rxqcqs[i].qcq);
1613 static int ionic_txrx_enable(struct ionic_lif *lif)
1617 for (i = 0; i < lif->nxqs; i++) {
1618 ionic_rx_fill(&lif->rxqcqs[i].qcq->q);
1619 err = ionic_qcq_enable(lif->rxqcqs[i].qcq);
1623 err = ionic_qcq_enable(lif->txqcqs[i].qcq);
1625 if (err != -ETIMEDOUT)
1626 ionic_qcq_disable(lif->rxqcqs[i].qcq);
1635 err = ionic_qcq_disable(lif->txqcqs[i].qcq);
1636 if (err == -ETIMEDOUT)
1638 err = ionic_qcq_disable(lif->rxqcqs[i].qcq);
1639 if (err == -ETIMEDOUT)
1646 static int ionic_start_queues(struct ionic_lif *lif)
1650 if (test_and_set_bit(IONIC_LIF_F_UP, lif->state))
1653 err = ionic_txrx_enable(lif);
1655 clear_bit(IONIC_LIF_F_UP, lif->state);
1658 netif_tx_wake_all_queues(lif->netdev);
1663 int ionic_open(struct net_device *netdev)
1665 struct ionic_lif *lif = netdev_priv(netdev);
1668 err = ionic_txrx_alloc(lif);
1672 err = ionic_txrx_init(lif);
1676 /* don't start the queues until we have link */
1677 if (netif_carrier_ok(netdev)) {
1678 err = ionic_start_queues(lif);
1680 goto err_txrx_deinit;
1686 ionic_txrx_deinit(lif);
1688 ionic_txrx_free(lif);
1692 static void ionic_stop_queues(struct ionic_lif *lif)
1694 if (!test_and_clear_bit(IONIC_LIF_F_UP, lif->state))
1697 netif_tx_disable(lif->netdev);
1698 ionic_txrx_disable(lif);
1701 int ionic_stop(struct net_device *netdev)
1703 struct ionic_lif *lif = netdev_priv(netdev);
1705 if (test_bit(IONIC_LIF_F_FW_RESET, lif->state))
1708 ionic_stop_queues(lif);
1709 ionic_txrx_deinit(lif);
1710 ionic_txrx_free(lif);
1715 static int ionic_get_vf_config(struct net_device *netdev,
1716 int vf, struct ifla_vf_info *ivf)
1718 struct ionic_lif *lif = netdev_priv(netdev);
1719 struct ionic *ionic = lif->ionic;
1722 if (!netif_device_present(netdev))
1725 down_read(&ionic->vf_op_lock);
1727 if (vf >= pci_num_vf(ionic->pdev) || !ionic->vfs) {
1731 ivf->vlan = ionic->vfs[vf].vlanid;
1733 ivf->spoofchk = ionic->vfs[vf].spoofchk;
1734 ivf->linkstate = ionic->vfs[vf].linkstate;
1735 ivf->max_tx_rate = ionic->vfs[vf].maxrate;
1736 ivf->trusted = ionic->vfs[vf].trusted;
1737 ether_addr_copy(ivf->mac, ionic->vfs[vf].macaddr);
1740 up_read(&ionic->vf_op_lock);
1744 static int ionic_get_vf_stats(struct net_device *netdev, int vf,
1745 struct ifla_vf_stats *vf_stats)
1747 struct ionic_lif *lif = netdev_priv(netdev);
1748 struct ionic *ionic = lif->ionic;
1749 struct ionic_lif_stats *vs;
1752 if (!netif_device_present(netdev))
1755 down_read(&ionic->vf_op_lock);
1757 if (vf >= pci_num_vf(ionic->pdev) || !ionic->vfs) {
1760 memset(vf_stats, 0, sizeof(*vf_stats));
1761 vs = &ionic->vfs[vf].stats;
1763 vf_stats->rx_packets = le64_to_cpu(vs->rx_ucast_packets);
1764 vf_stats->tx_packets = le64_to_cpu(vs->tx_ucast_packets);
1765 vf_stats->rx_bytes = le64_to_cpu(vs->rx_ucast_bytes);
1766 vf_stats->tx_bytes = le64_to_cpu(vs->tx_ucast_bytes);
1767 vf_stats->broadcast = le64_to_cpu(vs->rx_bcast_packets);
1768 vf_stats->multicast = le64_to_cpu(vs->rx_mcast_packets);
1769 vf_stats->rx_dropped = le64_to_cpu(vs->rx_ucast_drop_packets) +
1770 le64_to_cpu(vs->rx_mcast_drop_packets) +
1771 le64_to_cpu(vs->rx_bcast_drop_packets);
1772 vf_stats->tx_dropped = le64_to_cpu(vs->tx_ucast_drop_packets) +
1773 le64_to_cpu(vs->tx_mcast_drop_packets) +
1774 le64_to_cpu(vs->tx_bcast_drop_packets);
1777 up_read(&ionic->vf_op_lock);
1781 static int ionic_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1783 struct ionic_lif *lif = netdev_priv(netdev);
1784 struct ionic *ionic = lif->ionic;
1787 if (!(is_zero_ether_addr(mac) || is_valid_ether_addr(mac)))
1790 if (!netif_device_present(netdev))
1793 down_write(&ionic->vf_op_lock);
1795 if (vf >= pci_num_vf(ionic->pdev) || !ionic->vfs) {
1798 ret = ionic_set_vf_config(ionic, vf, IONIC_VF_ATTR_MAC, mac);
1800 ether_addr_copy(ionic->vfs[vf].macaddr, mac);
1803 up_write(&ionic->vf_op_lock);
1807 static int ionic_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan,
1808 u8 qos, __be16 proto)
1810 struct ionic_lif *lif = netdev_priv(netdev);
1811 struct ionic *ionic = lif->ionic;
1814 /* until someday when we support qos */
1821 if (proto != htons(ETH_P_8021Q))
1822 return -EPROTONOSUPPORT;
1824 if (!netif_device_present(netdev))
1827 down_write(&ionic->vf_op_lock);
1829 if (vf >= pci_num_vf(ionic->pdev) || !ionic->vfs) {
1832 ret = ionic_set_vf_config(ionic, vf,
1833 IONIC_VF_ATTR_VLAN, (u8 *)&vlan);
1835 ionic->vfs[vf].vlanid = vlan;
1838 up_write(&ionic->vf_op_lock);
1842 static int ionic_set_vf_rate(struct net_device *netdev, int vf,
1843 int tx_min, int tx_max)
1845 struct ionic_lif *lif = netdev_priv(netdev);
1846 struct ionic *ionic = lif->ionic;
1849 /* setting the min just seems silly */
1853 if (!netif_device_present(netdev))
1856 down_write(&ionic->vf_op_lock);
1858 if (vf >= pci_num_vf(ionic->pdev) || !ionic->vfs) {
1861 ret = ionic_set_vf_config(ionic, vf,
1862 IONIC_VF_ATTR_RATE, (u8 *)&tx_max);
1864 lif->ionic->vfs[vf].maxrate = tx_max;
1867 up_write(&ionic->vf_op_lock);
1871 static int ionic_set_vf_spoofchk(struct net_device *netdev, int vf, bool set)
1873 struct ionic_lif *lif = netdev_priv(netdev);
1874 struct ionic *ionic = lif->ionic;
1875 u8 data = set; /* convert to u8 for config */
1878 if (!netif_device_present(netdev))
1881 down_write(&ionic->vf_op_lock);
1883 if (vf >= pci_num_vf(ionic->pdev) || !ionic->vfs) {
1886 ret = ionic_set_vf_config(ionic, vf,
1887 IONIC_VF_ATTR_SPOOFCHK, &data);
1889 ionic->vfs[vf].spoofchk = data;
1892 up_write(&ionic->vf_op_lock);
1896 static int ionic_set_vf_trust(struct net_device *netdev, int vf, bool set)
1898 struct ionic_lif *lif = netdev_priv(netdev);
1899 struct ionic *ionic = lif->ionic;
1900 u8 data = set; /* convert to u8 for config */
1903 if (!netif_device_present(netdev))
1906 down_write(&ionic->vf_op_lock);
1908 if (vf >= pci_num_vf(ionic->pdev) || !ionic->vfs) {
1911 ret = ionic_set_vf_config(ionic, vf,
1912 IONIC_VF_ATTR_TRUST, &data);
1914 ionic->vfs[vf].trusted = data;
1917 up_write(&ionic->vf_op_lock);
1921 static int ionic_set_vf_link_state(struct net_device *netdev, int vf, int set)
1923 struct ionic_lif *lif = netdev_priv(netdev);
1924 struct ionic *ionic = lif->ionic;
1929 case IFLA_VF_LINK_STATE_ENABLE:
1930 data = IONIC_VF_LINK_STATUS_UP;
1932 case IFLA_VF_LINK_STATE_DISABLE:
1933 data = IONIC_VF_LINK_STATUS_DOWN;
1935 case IFLA_VF_LINK_STATE_AUTO:
1936 data = IONIC_VF_LINK_STATUS_AUTO;
1942 if (!netif_device_present(netdev))
1945 down_write(&ionic->vf_op_lock);
1947 if (vf >= pci_num_vf(ionic->pdev) || !ionic->vfs) {
1950 ret = ionic_set_vf_config(ionic, vf,
1951 IONIC_VF_ATTR_LINKSTATE, &data);
1953 ionic->vfs[vf].linkstate = set;
1956 up_write(&ionic->vf_op_lock);
1960 static const struct net_device_ops ionic_netdev_ops = {
1961 .ndo_open = ionic_open,
1962 .ndo_stop = ionic_stop,
1963 .ndo_start_xmit = ionic_start_xmit,
1964 .ndo_get_stats64 = ionic_get_stats64,
1965 .ndo_set_rx_mode = ionic_set_rx_mode,
1966 .ndo_set_features = ionic_set_features,
1967 .ndo_set_mac_address = ionic_set_mac_address,
1968 .ndo_validate_addr = eth_validate_addr,
1969 .ndo_tx_timeout = ionic_tx_timeout,
1970 .ndo_change_mtu = ionic_change_mtu,
1971 .ndo_vlan_rx_add_vid = ionic_vlan_rx_add_vid,
1972 .ndo_vlan_rx_kill_vid = ionic_vlan_rx_kill_vid,
1973 .ndo_set_vf_vlan = ionic_set_vf_vlan,
1974 .ndo_set_vf_trust = ionic_set_vf_trust,
1975 .ndo_set_vf_mac = ionic_set_vf_mac,
1976 .ndo_set_vf_rate = ionic_set_vf_rate,
1977 .ndo_set_vf_spoofchk = ionic_set_vf_spoofchk,
1978 .ndo_get_vf_config = ionic_get_vf_config,
1979 .ndo_set_vf_link_state = ionic_set_vf_link_state,
1980 .ndo_get_vf_stats = ionic_get_vf_stats,
1983 int ionic_reset_queues(struct ionic_lif *lif)
1988 err = ionic_wait_for_bit(lif, IONIC_LIF_F_QUEUE_RESET);
1992 running = netif_running(lif->netdev);
1994 netif_device_detach(lif->netdev);
1995 err = ionic_stop(lif->netdev);
1997 if (!err && running) {
1998 ionic_open(lif->netdev);
1999 netif_device_attach(lif->netdev);
2002 clear_bit(IONIC_LIF_F_QUEUE_RESET, lif->state);
2007 static struct ionic_lif *ionic_lif_alloc(struct ionic *ionic, unsigned int index)
2009 struct device *dev = ionic->dev;
2010 struct net_device *netdev;
2011 struct ionic_lif *lif;
2015 netdev = alloc_etherdev_mqs(sizeof(*lif),
2016 ionic->ntxqs_per_lif, ionic->ntxqs_per_lif);
2018 dev_err(dev, "Cannot allocate netdev, aborting\n");
2019 return ERR_PTR(-ENOMEM);
2022 SET_NETDEV_DEV(netdev, dev);
2024 lif = netdev_priv(netdev);
2025 lif->netdev = netdev;
2026 ionic->master_lif = lif;
2027 netdev->netdev_ops = &ionic_netdev_ops;
2028 ionic_ethtool_set_ops(netdev);
2030 netdev->watchdog_timeo = 2 * HZ;
2031 netif_carrier_off(netdev);
2033 netdev->min_mtu = IONIC_MIN_MTU;
2034 netdev->max_mtu = IONIC_MAX_MTU;
2036 lif->neqs = ionic->neqs_per_lif;
2037 lif->nxqs = ionic->ntxqs_per_lif;
2041 lif->ntxq_descs = IONIC_DEF_TXRX_DESC;
2042 lif->nrxq_descs = IONIC_DEF_TXRX_DESC;
2044 /* Convert the default coalesce value to actual hw resolution */
2045 lif->rx_coalesce_usecs = IONIC_ITR_COAL_USEC_DEFAULT;
2046 lif->rx_coalesce_hw = ionic_coal_usec_to_hw(lif->ionic,
2047 lif->rx_coalesce_usecs);
2049 snprintf(lif->name, sizeof(lif->name), "lif%u", index);
2051 spin_lock_init(&lif->adminq_lock);
2053 spin_lock_init(&lif->deferred.lock);
2054 INIT_LIST_HEAD(&lif->deferred.list);
2055 INIT_WORK(&lif->deferred.work, ionic_lif_deferred_work);
2057 /* allocate lif info */
2058 lif->info_sz = ALIGN(sizeof(*lif->info), PAGE_SIZE);
2059 lif->info = dma_alloc_coherent(dev, lif->info_sz,
2060 &lif->info_pa, GFP_KERNEL);
2062 dev_err(dev, "Failed to allocate lif info, aborting\n");
2064 goto err_out_free_netdev;
2067 ionic_debugfs_add_lif(lif);
2069 /* allocate queues */
2070 err = ionic_qcqs_alloc(lif);
2072 goto err_out_free_lif_info;
2074 /* allocate rss indirection table */
2075 tbl_sz = le16_to_cpu(lif->ionic->ident.lif.eth.rss_ind_tbl_sz);
2076 lif->rss_ind_tbl_sz = sizeof(*lif->rss_ind_tbl) * tbl_sz;
2077 lif->rss_ind_tbl = dma_alloc_coherent(dev, lif->rss_ind_tbl_sz,
2078 &lif->rss_ind_tbl_pa,
2081 if (!lif->rss_ind_tbl) {
2083 dev_err(dev, "Failed to allocate rss indirection table, aborting\n");
2084 goto err_out_free_qcqs;
2086 netdev_rss_key_fill(lif->rss_hash_key, IONIC_RSS_HASH_KEY_SIZE);
2088 list_add_tail(&lif->list, &ionic->lifs);
2093 ionic_qcqs_free(lif);
2094 err_out_free_lif_info:
2095 dma_free_coherent(dev, lif->info_sz, lif->info, lif->info_pa);
2098 err_out_free_netdev:
2099 free_netdev(lif->netdev);
2102 return ERR_PTR(err);
2105 int ionic_lifs_alloc(struct ionic *ionic)
2107 struct ionic_lif *lif;
2109 INIT_LIST_HEAD(&ionic->lifs);
2111 /* only build the first lif, others are for later features */
2112 set_bit(0, ionic->lifbits);
2114 lif = ionic_lif_alloc(ionic, 0);
2115 if (IS_ERR_OR_NULL(lif)) {
2116 clear_bit(0, ionic->lifbits);
2120 lif->lif_type = IONIC_LIF_TYPE_CLASSIC;
2121 ionic_lif_queue_identify(lif);
2126 static void ionic_lif_reset(struct ionic_lif *lif)
2128 struct ionic_dev *idev = &lif->ionic->idev;
2130 mutex_lock(&lif->ionic->dev_cmd_lock);
2131 ionic_dev_cmd_lif_reset(idev, lif->index);
2132 ionic_dev_cmd_wait(lif->ionic, DEVCMD_TIMEOUT);
2133 mutex_unlock(&lif->ionic->dev_cmd_lock);
2136 static void ionic_lif_handle_fw_down(struct ionic_lif *lif)
2138 struct ionic *ionic = lif->ionic;
2140 if (test_and_set_bit(IONIC_LIF_F_FW_RESET, lif->state))
2143 dev_info(ionic->dev, "FW Down: Stopping LIFs\n");
2145 netif_device_detach(lif->netdev);
2147 if (test_bit(IONIC_LIF_F_UP, lif->state)) {
2148 dev_info(ionic->dev, "Surprise FW stop, stopping queues\n");
2149 ionic_stop_queues(lif);
2152 if (netif_running(lif->netdev)) {
2153 ionic_txrx_deinit(lif);
2154 ionic_txrx_free(lif);
2156 ionic_lifs_deinit(ionic);
2158 ionic_qcqs_free(lif);
2160 dev_info(ionic->dev, "FW Down: LIFs stopped\n");
2163 static void ionic_lif_handle_fw_up(struct ionic_lif *lif)
2165 struct ionic *ionic = lif->ionic;
2168 if (!test_bit(IONIC_LIF_F_FW_RESET, lif->state))
2171 dev_info(ionic->dev, "FW Up: restarting LIFs\n");
2173 ionic_init_devinfo(ionic);
2174 ionic_port_init(ionic);
2175 err = ionic_qcqs_alloc(lif);
2179 err = ionic_lifs_init(ionic);
2183 if (lif->registered)
2184 ionic_lif_set_netdev_info(lif);
2186 ionic_rx_filter_replay(lif);
2188 if (netif_running(lif->netdev)) {
2189 err = ionic_txrx_alloc(lif);
2191 goto err_lifs_deinit;
2193 err = ionic_txrx_init(lif);
2198 clear_bit(IONIC_LIF_F_FW_RESET, lif->state);
2199 ionic_link_status_check_request(lif);
2200 netif_device_attach(lif->netdev);
2201 dev_info(ionic->dev, "FW Up: LIFs restarted\n");
2206 ionic_txrx_free(lif);
2208 ionic_lifs_deinit(ionic);
2210 ionic_qcqs_free(lif);
2212 dev_err(ionic->dev, "FW Up: LIFs restart failed - err %d\n", err);
2215 static void ionic_lif_free(struct ionic_lif *lif)
2217 struct device *dev = lif->ionic->dev;
2219 /* free rss indirection table */
2220 dma_free_coherent(dev, lif->rss_ind_tbl_sz, lif->rss_ind_tbl,
2221 lif->rss_ind_tbl_pa);
2222 lif->rss_ind_tbl = NULL;
2223 lif->rss_ind_tbl_pa = 0;
2226 ionic_qcqs_free(lif);
2227 if (!test_bit(IONIC_LIF_F_FW_RESET, lif->state))
2228 ionic_lif_reset(lif);
2231 dma_free_coherent(dev, lif->info_sz, lif->info, lif->info_pa);
2235 /* unmap doorbell page */
2236 ionic_bus_unmap_dbpage(lif->ionic, lif->kern_dbpage);
2237 lif->kern_dbpage = NULL;
2238 kfree(lif->dbid_inuse);
2239 lif->dbid_inuse = NULL;
2241 /* free netdev & lif */
2242 ionic_debugfs_del_lif(lif);
2243 list_del(&lif->list);
2244 free_netdev(lif->netdev);
2247 void ionic_lifs_free(struct ionic *ionic)
2249 struct list_head *cur, *tmp;
2250 struct ionic_lif *lif;
2252 list_for_each_safe(cur, tmp, &ionic->lifs) {
2253 lif = list_entry(cur, struct ionic_lif, list);
2255 ionic_lif_free(lif);
2259 static void ionic_lif_deinit(struct ionic_lif *lif)
2261 if (!test_and_clear_bit(IONIC_LIF_F_INITED, lif->state))
2264 if (!test_bit(IONIC_LIF_F_FW_RESET, lif->state)) {
2265 cancel_work_sync(&lif->deferred.work);
2266 cancel_work_sync(&lif->tx_timeout_work);
2267 ionic_rx_filters_deinit(lif);
2270 if (lif->netdev->features & NETIF_F_RXHASH)
2271 ionic_lif_rss_deinit(lif);
2273 napi_disable(&lif->adminqcq->napi);
2274 ionic_lif_qcq_deinit(lif, lif->notifyqcq);
2275 ionic_lif_qcq_deinit(lif, lif->adminqcq);
2277 ionic_lif_reset(lif);
2280 void ionic_lifs_deinit(struct ionic *ionic)
2282 struct list_head *cur, *tmp;
2283 struct ionic_lif *lif;
2285 list_for_each_safe(cur, tmp, &ionic->lifs) {
2286 lif = list_entry(cur, struct ionic_lif, list);
2287 ionic_lif_deinit(lif);
2291 static int ionic_lif_adminq_init(struct ionic_lif *lif)
2293 struct device *dev = lif->ionic->dev;
2294 struct ionic_q_init_comp comp;
2295 struct ionic_dev *idev;
2296 struct ionic_qcq *qcq;
2297 struct ionic_queue *q;
2300 idev = &lif->ionic->idev;
2301 qcq = lif->adminqcq;
2304 mutex_lock(&lif->ionic->dev_cmd_lock);
2305 ionic_dev_cmd_adminq_init(idev, qcq, lif->index, qcq->intr.index);
2306 err = ionic_dev_cmd_wait(lif->ionic, DEVCMD_TIMEOUT);
2307 ionic_dev_cmd_comp(idev, (union ionic_dev_cmd_comp *)&comp);
2308 mutex_unlock(&lif->ionic->dev_cmd_lock);
2310 netdev_err(lif->netdev, "adminq init failed %d\n", err);
2314 q->hw_type = comp.hw_type;
2315 q->hw_index = le32_to_cpu(comp.hw_index);
2316 q->dbval = IONIC_DBELL_QID(q->hw_index);
2318 dev_dbg(dev, "adminq->hw_type %d\n", q->hw_type);
2319 dev_dbg(dev, "adminq->hw_index %d\n", q->hw_index);
2321 netif_napi_add(lif->netdev, &qcq->napi, ionic_adminq_napi,
2324 napi_enable(&qcq->napi);
2326 if (qcq->flags & IONIC_QCQ_F_INTR)
2327 ionic_intr_mask(idev->intr_ctrl, qcq->intr.index,
2328 IONIC_INTR_MASK_CLEAR);
2330 qcq->flags |= IONIC_QCQ_F_INITED;
2335 static int ionic_lif_notifyq_init(struct ionic_lif *lif)
2337 struct ionic_qcq *qcq = lif->notifyqcq;
2338 struct device *dev = lif->ionic->dev;
2339 struct ionic_queue *q = &qcq->q;
2342 struct ionic_admin_ctx ctx = {
2343 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work),
2345 .opcode = IONIC_CMD_Q_INIT,
2346 .lif_index = cpu_to_le16(lif->index),
2348 .ver = lif->qtype_info[q->type].version,
2349 .index = cpu_to_le32(q->index),
2350 .flags = cpu_to_le16(IONIC_QINIT_F_IRQ |
2352 .intr_index = cpu_to_le16(lif->adminqcq->intr.index),
2353 .pid = cpu_to_le16(q->pid),
2354 .ring_size = ilog2(q->num_descs),
2355 .ring_base = cpu_to_le64(q->base_pa),
2359 dev_dbg(dev, "notifyq_init.pid %d\n", ctx.cmd.q_init.pid);
2360 dev_dbg(dev, "notifyq_init.index %d\n", ctx.cmd.q_init.index);
2361 dev_dbg(dev, "notifyq_init.ring_base 0x%llx\n", ctx.cmd.q_init.ring_base);
2362 dev_dbg(dev, "notifyq_init.ring_size %d\n", ctx.cmd.q_init.ring_size);
2364 err = ionic_adminq_post_wait(lif, &ctx);
2369 q->hw_type = ctx.comp.q_init.hw_type;
2370 q->hw_index = le32_to_cpu(ctx.comp.q_init.hw_index);
2371 q->dbval = IONIC_DBELL_QID(q->hw_index);
2373 dev_dbg(dev, "notifyq->hw_type %d\n", q->hw_type);
2374 dev_dbg(dev, "notifyq->hw_index %d\n", q->hw_index);
2376 /* preset the callback info */
2377 q->info[0].cb_arg = lif;
2379 qcq->flags |= IONIC_QCQ_F_INITED;
2384 static int ionic_station_set(struct ionic_lif *lif)
2386 struct net_device *netdev = lif->netdev;
2387 struct ionic_admin_ctx ctx = {
2388 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work),
2389 .cmd.lif_getattr = {
2390 .opcode = IONIC_CMD_LIF_GETATTR,
2391 .index = cpu_to_le16(lif->index),
2392 .attr = IONIC_LIF_ATTR_MAC,
2395 struct sockaddr addr;
2398 err = ionic_adminq_post_wait(lif, &ctx);
2401 netdev_dbg(lif->netdev, "found initial MAC addr %pM\n",
2402 ctx.comp.lif_getattr.mac);
2403 if (is_zero_ether_addr(ctx.comp.lif_getattr.mac))
2406 if (!is_zero_ether_addr(netdev->dev_addr)) {
2407 /* If the netdev mac is non-zero and doesn't match the default
2408 * device address, it was set by something earlier and we're
2409 * likely here again after a fw-upgrade reset. We need to be
2410 * sure the netdev mac is in our filter list.
2412 if (!ether_addr_equal(ctx.comp.lif_getattr.mac,
2414 ionic_lif_addr(lif, netdev->dev_addr, true);
2416 /* Update the netdev mac with the device's mac */
2417 memcpy(addr.sa_data, ctx.comp.lif_getattr.mac, netdev->addr_len);
2418 addr.sa_family = AF_INET;
2419 err = eth_prepare_mac_addr_change(netdev, &addr);
2421 netdev_warn(lif->netdev, "ignoring bad MAC addr from NIC %pM - err %d\n",
2426 eth_commit_mac_addr_change(netdev, &addr);
2429 netdev_dbg(lif->netdev, "adding station MAC addr %pM\n",
2431 ionic_lif_addr(lif, netdev->dev_addr, true);
2436 static int ionic_lif_init(struct ionic_lif *lif)
2438 struct ionic_dev *idev = &lif->ionic->idev;
2439 struct device *dev = lif->ionic->dev;
2440 struct ionic_lif_init_comp comp;
2444 mutex_lock(&lif->ionic->dev_cmd_lock);
2445 ionic_dev_cmd_lif_init(idev, lif->index, lif->info_pa);
2446 err = ionic_dev_cmd_wait(lif->ionic, DEVCMD_TIMEOUT);
2447 ionic_dev_cmd_comp(idev, (union ionic_dev_cmd_comp *)&comp);
2448 mutex_unlock(&lif->ionic->dev_cmd_lock);
2452 lif->hw_index = le16_to_cpu(comp.hw_index);
2454 /* now that we have the hw_index we can figure out our doorbell page */
2455 lif->dbid_count = le32_to_cpu(lif->ionic->ident.dev.ndbpgs_per_lif);
2456 if (!lif->dbid_count) {
2457 dev_err(dev, "No doorbell pages, aborting\n");
2461 lif->dbid_inuse = bitmap_alloc(lif->dbid_count, GFP_KERNEL);
2462 if (!lif->dbid_inuse) {
2463 dev_err(dev, "Failed alloc doorbell id bitmap, aborting\n");
2467 /* first doorbell id reserved for kernel (dbid aka pid == zero) */
2468 set_bit(0, lif->dbid_inuse);
2471 dbpage_num = ionic_db_page_num(lif, lif->kern_pid);
2472 lif->kern_dbpage = ionic_bus_map_dbpage(lif->ionic, dbpage_num);
2473 if (!lif->kern_dbpage) {
2474 dev_err(dev, "Cannot map dbpage, aborting\n");
2476 goto err_out_free_dbid;
2479 err = ionic_lif_adminq_init(lif);
2481 goto err_out_adminq_deinit;
2483 if (lif->ionic->nnqs_per_lif) {
2484 err = ionic_lif_notifyq_init(lif);
2486 goto err_out_notifyq_deinit;
2489 err = ionic_init_nic_features(lif);
2491 goto err_out_notifyq_deinit;
2493 if (!test_bit(IONIC_LIF_F_FW_RESET, lif->state)) {
2494 err = ionic_rx_filters_init(lif);
2496 goto err_out_notifyq_deinit;
2499 err = ionic_station_set(lif);
2501 goto err_out_notifyq_deinit;
2503 lif->rx_copybreak = IONIC_RX_COPYBREAK_DEFAULT;
2505 set_bit(IONIC_LIF_F_INITED, lif->state);
2507 INIT_WORK(&lif->tx_timeout_work, ionic_tx_timeout_work);
2511 err_out_notifyq_deinit:
2512 ionic_lif_qcq_deinit(lif, lif->notifyqcq);
2513 err_out_adminq_deinit:
2514 ionic_lif_qcq_deinit(lif, lif->adminqcq);
2515 ionic_lif_reset(lif);
2516 ionic_bus_unmap_dbpage(lif->ionic, lif->kern_dbpage);
2517 lif->kern_dbpage = NULL;
2519 kfree(lif->dbid_inuse);
2520 lif->dbid_inuse = NULL;
2525 int ionic_lifs_init(struct ionic *ionic)
2527 struct list_head *cur, *tmp;
2528 struct ionic_lif *lif;
2531 list_for_each_safe(cur, tmp, &ionic->lifs) {
2532 lif = list_entry(cur, struct ionic_lif, list);
2533 err = ionic_lif_init(lif);
2541 static void ionic_lif_notify_work(struct work_struct *ws)
2545 static void ionic_lif_set_netdev_info(struct ionic_lif *lif)
2547 struct ionic_admin_ctx ctx = {
2548 .work = COMPLETION_INITIALIZER_ONSTACK(ctx.work),
2549 .cmd.lif_setattr = {
2550 .opcode = IONIC_CMD_LIF_SETATTR,
2551 .index = cpu_to_le16(lif->index),
2552 .attr = IONIC_LIF_ATTR_NAME,
2556 strlcpy(ctx.cmd.lif_setattr.name, lif->netdev->name,
2557 sizeof(ctx.cmd.lif_setattr.name));
2559 ionic_adminq_post_wait(lif, &ctx);
2562 static struct ionic_lif *ionic_netdev_lif(struct net_device *netdev)
2564 if (!netdev || netdev->netdev_ops->ndo_start_xmit != ionic_start_xmit)
2567 return netdev_priv(netdev);
2570 static int ionic_lif_notify(struct notifier_block *nb,
2571 unsigned long event, void *info)
2573 struct net_device *ndev = netdev_notifier_info_to_dev(info);
2574 struct ionic *ionic = container_of(nb, struct ionic, nb);
2575 struct ionic_lif *lif = ionic_netdev_lif(ndev);
2577 if (!lif || lif->ionic != ionic)
2581 case NETDEV_CHANGENAME:
2582 ionic_lif_set_netdev_info(lif);
2589 int ionic_lifs_register(struct ionic *ionic)
2593 INIT_WORK(&ionic->nb_work, ionic_lif_notify_work);
2595 ionic->nb.notifier_call = ionic_lif_notify;
2597 err = register_netdevice_notifier(&ionic->nb);
2599 ionic->nb.notifier_call = NULL;
2601 /* only register LIF0 for now */
2602 err = register_netdev(ionic->master_lif->netdev);
2604 dev_err(ionic->dev, "Cannot register net device, aborting\n");
2607 ionic->master_lif->registered = true;
2612 void ionic_lifs_unregister(struct ionic *ionic)
2614 if (ionic->nb.notifier_call) {
2615 unregister_netdevice_notifier(&ionic->nb);
2616 cancel_work_sync(&ionic->nb_work);
2617 ionic->nb.notifier_call = NULL;
2620 /* There is only one lif ever registered in the
2621 * current model, so don't bother searching the
2622 * ionic->lif for candidates to unregister
2624 if (ionic->master_lif &&
2625 ionic->master_lif->netdev->reg_state == NETREG_REGISTERED)
2626 unregister_netdev(ionic->master_lif->netdev);
2629 static void ionic_lif_queue_identify(struct ionic_lif *lif)
2631 struct ionic *ionic = lif->ionic;
2632 union ionic_q_identity *q_ident;
2633 struct ionic_dev *idev;
2637 idev = &lif->ionic->idev;
2638 q_ident = (union ionic_q_identity *)&idev->dev_cmd_regs->data;
2640 for (qtype = 0; qtype < ARRAY_SIZE(ionic_qtype_versions); qtype++) {
2641 struct ionic_qtype_info *qti = &lif->qtype_info[qtype];
2643 /* filter out the ones we know about */
2645 case IONIC_QTYPE_ADMINQ:
2646 case IONIC_QTYPE_NOTIFYQ:
2647 case IONIC_QTYPE_RXQ:
2648 case IONIC_QTYPE_TXQ:
2654 memset(qti, 0, sizeof(*qti));
2656 mutex_lock(&ionic->dev_cmd_lock);
2657 ionic_dev_cmd_queue_identify(idev, lif->lif_type, qtype,
2658 ionic_qtype_versions[qtype]);
2659 err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
2661 qti->version = q_ident->version;
2662 qti->supported = q_ident->supported;
2663 qti->features = le64_to_cpu(q_ident->features);
2664 qti->desc_sz = le16_to_cpu(q_ident->desc_sz);
2665 qti->comp_sz = le16_to_cpu(q_ident->comp_sz);
2666 qti->sg_desc_sz = le16_to_cpu(q_ident->sg_desc_sz);
2667 qti->max_sg_elems = le16_to_cpu(q_ident->max_sg_elems);
2668 qti->sg_desc_stride = le16_to_cpu(q_ident->sg_desc_stride);
2670 mutex_unlock(&ionic->dev_cmd_lock);
2672 if (err == -EINVAL) {
2673 dev_err(ionic->dev, "qtype %d not supported\n", qtype);
2675 } else if (err == -EIO) {
2676 dev_err(ionic->dev, "q_ident failed, not supported on older FW\n");
2679 dev_err(ionic->dev, "q_ident failed, qtype %d: %d\n",
2684 dev_dbg(ionic->dev, " qtype[%d].version = %d\n",
2685 qtype, qti->version);
2686 dev_dbg(ionic->dev, " qtype[%d].supported = 0x%02x\n",
2687 qtype, qti->supported);
2688 dev_dbg(ionic->dev, " qtype[%d].features = 0x%04llx\n",
2689 qtype, qti->features);
2690 dev_dbg(ionic->dev, " qtype[%d].desc_sz = %d\n",
2691 qtype, qti->desc_sz);
2692 dev_dbg(ionic->dev, " qtype[%d].comp_sz = %d\n",
2693 qtype, qti->comp_sz);
2694 dev_dbg(ionic->dev, " qtype[%d].sg_desc_sz = %d\n",
2695 qtype, qti->sg_desc_sz);
2696 dev_dbg(ionic->dev, " qtype[%d].max_sg_elems = %d\n",
2697 qtype, qti->max_sg_elems);
2698 dev_dbg(ionic->dev, " qtype[%d].sg_desc_stride = %d\n",
2699 qtype, qti->sg_desc_stride);
2703 int ionic_lif_identify(struct ionic *ionic, u8 lif_type,
2704 union ionic_lif_identity *lid)
2706 struct ionic_dev *idev = &ionic->idev;
2710 sz = min(sizeof(*lid), sizeof(idev->dev_cmd_regs->data));
2712 mutex_lock(&ionic->dev_cmd_lock);
2713 ionic_dev_cmd_lif_identify(idev, lif_type, IONIC_IDENTITY_VERSION_1);
2714 err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
2715 memcpy_fromio(lid, &idev->dev_cmd_regs->data, sz);
2716 mutex_unlock(&ionic->dev_cmd_lock);
2720 dev_dbg(ionic->dev, "capabilities 0x%llx\n",
2721 le64_to_cpu(lid->capabilities));
2723 dev_dbg(ionic->dev, "eth.max_ucast_filters %d\n",
2724 le32_to_cpu(lid->eth.max_ucast_filters));
2725 dev_dbg(ionic->dev, "eth.max_mcast_filters %d\n",
2726 le32_to_cpu(lid->eth.max_mcast_filters));
2727 dev_dbg(ionic->dev, "eth.features 0x%llx\n",
2728 le64_to_cpu(lid->eth.config.features));
2729 dev_dbg(ionic->dev, "eth.queue_count[IONIC_QTYPE_ADMINQ] %d\n",
2730 le32_to_cpu(lid->eth.config.queue_count[IONIC_QTYPE_ADMINQ]));
2731 dev_dbg(ionic->dev, "eth.queue_count[IONIC_QTYPE_NOTIFYQ] %d\n",
2732 le32_to_cpu(lid->eth.config.queue_count[IONIC_QTYPE_NOTIFYQ]));
2733 dev_dbg(ionic->dev, "eth.queue_count[IONIC_QTYPE_RXQ] %d\n",
2734 le32_to_cpu(lid->eth.config.queue_count[IONIC_QTYPE_RXQ]));
2735 dev_dbg(ionic->dev, "eth.queue_count[IONIC_QTYPE_TXQ] %d\n",
2736 le32_to_cpu(lid->eth.config.queue_count[IONIC_QTYPE_TXQ]));
2737 dev_dbg(ionic->dev, "eth.config.name %s\n", lid->eth.config.name);
2738 dev_dbg(ionic->dev, "eth.config.mac %pM\n", lid->eth.config.mac);
2739 dev_dbg(ionic->dev, "eth.config.mtu %d\n",
2740 le32_to_cpu(lid->eth.config.mtu));
2745 int ionic_lifs_size(struct ionic *ionic)
2747 struct ionic_identity *ident = &ionic->ident;
2748 unsigned int nintrs, dev_nintrs;
2749 union ionic_lif_config *lc;
2750 unsigned int ntxqs_per_lif;
2751 unsigned int nrxqs_per_lif;
2752 unsigned int neqs_per_lif;
2753 unsigned int nnqs_per_lif;
2754 unsigned int nxqs, neqs;
2755 unsigned int min_intrs;
2758 lc = &ident->lif.eth.config;
2759 dev_nintrs = le32_to_cpu(ident->dev.nintrs);
2760 neqs_per_lif = le32_to_cpu(ident->lif.rdma.eq_qtype.qid_count);
2761 nnqs_per_lif = le32_to_cpu(lc->queue_count[IONIC_QTYPE_NOTIFYQ]);
2762 ntxqs_per_lif = le32_to_cpu(lc->queue_count[IONIC_QTYPE_TXQ]);
2763 nrxqs_per_lif = le32_to_cpu(lc->queue_count[IONIC_QTYPE_RXQ]);
2765 nxqs = min(ntxqs_per_lif, nrxqs_per_lif);
2766 nxqs = min(nxqs, num_online_cpus());
2767 neqs = min(neqs_per_lif, num_online_cpus());
2771 * 1 for master lif adminq/notifyq
2772 * 1 for each CPU for master lif TxRx queue pairs
2773 * whatever's left is for RDMA queues
2775 nintrs = 1 + nxqs + neqs;
2776 min_intrs = 2; /* adminq + 1 TxRx queue pair */
2778 if (nintrs > dev_nintrs)
2781 err = ionic_bus_alloc_irq_vectors(ionic, nintrs);
2782 if (err < 0 && err != -ENOSPC) {
2783 dev_err(ionic->dev, "Can't get intrs from OS: %d\n", err);
2789 if (err != nintrs) {
2790 ionic_bus_free_irq_vectors(ionic);
2794 ionic->nnqs_per_lif = nnqs_per_lif;
2795 ionic->neqs_per_lif = neqs;
2796 ionic->ntxqs_per_lif = nxqs;
2797 ionic->nrxqs_per_lif = nxqs;
2798 ionic->nintrs = nintrs;
2800 ionic_debugfs_add_sizes(ionic);
2805 if (nnqs_per_lif > 1) {
2817 dev_err(ionic->dev, "Can't get minimum %d intrs from OS\n", min_intrs);