1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2018, Intel Corporation. */
5 #include "ice_vf_lib_private.h"
9 #include "ice_dcb_lib.h"
11 #include "ice_eswitch.h"
12 #include "ice_virtchnl_allowlist.h"
13 #include "ice_flex_pipe.h"
14 #include "ice_vf_vsi_vlan_ops.h"
18 * ice_free_vf_entries - Free all VF entries from the hash table
19 * @pf: pointer to the PF structure
21 * Iterate over the VF hash table, removing and releasing all VF entries.
22 * Called during VF teardown or as cleanup during failed VF initialization.
24 static void ice_free_vf_entries(struct ice_pf *pf)
26 struct ice_vfs *vfs = &pf->vfs;
27 struct hlist_node *tmp;
31 /* Remove all VFs from the hash table and release their main
32 * reference. Once all references to the VF are dropped, ice_put_vf()
33 * will call ice_release_vf which will remove the VF memory.
35 lockdep_assert_held(&vfs->table_lock);
37 hash_for_each_safe(vfs->table, bkt, tmp, vf, entry) {
38 hash_del_rcu(&vf->entry);
44 * ice_free_vf_res - Free a VF's resources
45 * @vf: pointer to the VF info
47 static void ice_free_vf_res(struct ice_vf *vf)
49 struct ice_pf *pf = vf->pf;
50 int i, last_vector_idx;
52 /* First, disable VF's configuration API to prevent OS from
53 * accessing the VF's VSI after it's freed or invalidated.
55 clear_bit(ICE_VF_STATE_INIT, vf->vf_states);
57 /* free VF control VSI */
58 if (vf->ctrl_vsi_idx != ICE_NO_VSI)
59 ice_vf_ctrl_vsi_release(vf);
61 /* free VSI and disconnect it from the parent uplink */
62 if (vf->lan_vsi_idx != ICE_NO_VSI) {
63 ice_vf_vsi_release(vf);
67 last_vector_idx = vf->first_vector_idx + pf->vfs.num_msix_per - 1;
69 /* clear VF MDD event information */
70 memset(&vf->mdd_tx_events, 0, sizeof(vf->mdd_tx_events));
71 memset(&vf->mdd_rx_events, 0, sizeof(vf->mdd_rx_events));
73 /* Disable interrupts so that VF starts in a known state */
74 for (i = vf->first_vector_idx; i <= last_vector_idx; i++) {
75 wr32(&pf->hw, GLINT_DYN_CTL(i), GLINT_DYN_CTL_CLEARPBA_M);
78 /* reset some of the state variables keeping track of the resources */
79 clear_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states);
80 clear_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states);
85 * @vf: pointer to the VF structure
87 static void ice_dis_vf_mappings(struct ice_vf *vf)
89 struct ice_pf *pf = vf->pf;
96 vsi = ice_get_vf_vsi(vf);
100 dev = ice_pf_to_dev(pf);
101 wr32(hw, VPINT_ALLOC(vf->vf_id), 0);
102 wr32(hw, VPINT_ALLOC_PCI(vf->vf_id), 0);
104 first = vf->first_vector_idx;
105 last = first + pf->vfs.num_msix_per - 1;
106 for (v = first; v <= last; v++) {
109 reg = (((1 << GLINT_VECT2FUNC_IS_PF_S) &
110 GLINT_VECT2FUNC_IS_PF_M) |
111 ((hw->pf_id << GLINT_VECT2FUNC_PF_NUM_S) &
112 GLINT_VECT2FUNC_PF_NUM_M));
113 wr32(hw, GLINT_VECT2FUNC(v), reg);
116 if (vsi->tx_mapping_mode == ICE_VSI_MAP_CONTIG)
117 wr32(hw, VPLAN_TX_QBASE(vf->vf_id), 0);
119 dev_err(dev, "Scattered mode for VF Tx queues is not yet implemented\n");
121 if (vsi->rx_mapping_mode == ICE_VSI_MAP_CONTIG)
122 wr32(hw, VPLAN_RX_QBASE(vf->vf_id), 0);
124 dev_err(dev, "Scattered mode for VF Rx queues is not yet implemented\n");
128 * ice_sriov_free_msix_res - Reset/free any used MSIX resources
129 * @pf: pointer to the PF structure
131 * Since no MSIX entries are taken from the pf->irq_tracker then just clear
132 * the pf->sriov_base_vector.
134 * Returns 0 on success, and -EINVAL on error.
136 static int ice_sriov_free_msix_res(struct ice_pf *pf)
141 pf->sriov_base_vector = 0;
147 * ice_free_vfs - Free all VFs
148 * @pf: pointer to the PF structure
150 void ice_free_vfs(struct ice_pf *pf)
152 struct device *dev = ice_pf_to_dev(pf);
153 struct ice_vfs *vfs = &pf->vfs;
154 struct ice_hw *hw = &pf->hw;
158 if (!ice_has_vfs(pf))
161 while (test_and_set_bit(ICE_VF_DIS, pf->state))
162 usleep_range(1000, 2000);
164 /* Disable IOV before freeing resources. This lets any VF drivers
165 * running in the host get themselves cleaned up before we yank
166 * the carpet out from underneath their feet.
168 if (!pci_vfs_assigned(pf->pdev))
169 pci_disable_sriov(pf->pdev);
171 dev_warn(dev, "VFs are assigned - not disabling SR-IOV\n");
173 mutex_lock(&vfs->table_lock);
175 ice_eswitch_release(pf);
177 ice_for_each_vf(pf, bkt, vf) {
178 mutex_lock(&vf->cfg_lock);
182 if (test_bit(ICE_VF_STATE_INIT, vf->vf_states)) {
183 /* disable VF qp mappings and set VF disable state */
184 ice_dis_vf_mappings(vf);
185 set_bit(ICE_VF_STATE_DIS, vf->vf_states);
189 if (!pci_vfs_assigned(pf->pdev)) {
190 u32 reg_idx, bit_idx;
192 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32;
193 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32;
194 wr32(hw, GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
197 /* clear malicious info since the VF is getting released */
198 list_del(&vf->mbx_info.list_entry);
200 mutex_unlock(&vf->cfg_lock);
203 if (ice_sriov_free_msix_res(pf))
204 dev_err(dev, "Failed to free MSIX resources used by SR-IOV\n");
206 vfs->num_qps_per = 0;
207 ice_free_vf_entries(pf);
209 mutex_unlock(&vfs->table_lock);
211 clear_bit(ICE_VF_DIS, pf->state);
212 clear_bit(ICE_FLAG_SRIOV_ENA, pf->flags);
216 * ice_vf_vsi_setup - Set up a VF VSI
217 * @vf: VF to setup VSI for
219 * Returns pointer to the successfully allocated VSI struct on success,
220 * otherwise returns NULL on failure.
222 static struct ice_vsi *ice_vf_vsi_setup(struct ice_vf *vf)
224 struct ice_vsi_cfg_params params = {};
225 struct ice_pf *pf = vf->pf;
228 params.type = ICE_VSI_VF;
229 params.pi = ice_vf_get_port_info(vf);
231 params.flags = ICE_VSI_FLAG_INIT;
233 vsi = ice_vsi_setup(pf, ¶ms);
236 dev_err(ice_pf_to_dev(pf), "Failed to create VF VSI\n");
237 ice_vf_invalidate_vsi(vf);
241 vf->lan_vsi_idx = vsi->idx;
242 vf->lan_vsi_num = vsi->vsi_num;
248 * ice_calc_vf_first_vector_idx - Calculate MSIX vector index in the PF space
249 * @pf: pointer to PF structure
250 * @vf: pointer to VF that the first MSIX vector index is being calculated for
252 * This returns the first MSIX vector index in PF space that is used by this VF.
253 * This index is used when accessing PF relative registers such as
254 * GLINT_VECT2FUNC and GLINT_DYN_CTL.
255 * This will always be the OICR index in the AVF driver so any functionality
256 * using vf->first_vector_idx for queue configuration will have to increment by
257 * 1 to avoid meddling with the OICR index.
259 static int ice_calc_vf_first_vector_idx(struct ice_pf *pf, struct ice_vf *vf)
261 return pf->sriov_base_vector + vf->vf_id * pf->vfs.num_msix_per;
265 * ice_ena_vf_msix_mappings - enable VF MSIX mappings in hardware
266 * @vf: VF to enable MSIX mappings for
268 * Some of the registers need to be indexed/configured using hardware global
269 * device values and other registers need 0-based values, which represent PF
272 static void ice_ena_vf_msix_mappings(struct ice_vf *vf)
274 int device_based_first_msix, device_based_last_msix;
275 int pf_based_first_msix, pf_based_last_msix, v;
276 struct ice_pf *pf = vf->pf;
277 int device_based_vf_id;
282 pf_based_first_msix = vf->first_vector_idx;
283 pf_based_last_msix = (pf_based_first_msix + pf->vfs.num_msix_per) - 1;
285 device_based_first_msix = pf_based_first_msix +
286 pf->hw.func_caps.common_cap.msix_vector_first_id;
287 device_based_last_msix =
288 (device_based_first_msix + pf->vfs.num_msix_per) - 1;
289 device_based_vf_id = vf->vf_id + hw->func_caps.vf_base_id;
291 reg = (((device_based_first_msix << VPINT_ALLOC_FIRST_S) &
292 VPINT_ALLOC_FIRST_M) |
293 ((device_based_last_msix << VPINT_ALLOC_LAST_S) &
294 VPINT_ALLOC_LAST_M) | VPINT_ALLOC_VALID_M);
295 wr32(hw, VPINT_ALLOC(vf->vf_id), reg);
297 reg = (((device_based_first_msix << VPINT_ALLOC_PCI_FIRST_S)
298 & VPINT_ALLOC_PCI_FIRST_M) |
299 ((device_based_last_msix << VPINT_ALLOC_PCI_LAST_S) &
300 VPINT_ALLOC_PCI_LAST_M) | VPINT_ALLOC_PCI_VALID_M);
301 wr32(hw, VPINT_ALLOC_PCI(vf->vf_id), reg);
303 /* map the interrupts to its functions */
304 for (v = pf_based_first_msix; v <= pf_based_last_msix; v++) {
305 reg = (((device_based_vf_id << GLINT_VECT2FUNC_VF_NUM_S) &
306 GLINT_VECT2FUNC_VF_NUM_M) |
307 ((hw->pf_id << GLINT_VECT2FUNC_PF_NUM_S) &
308 GLINT_VECT2FUNC_PF_NUM_M));
309 wr32(hw, GLINT_VECT2FUNC(v), reg);
312 /* Map mailbox interrupt to VF MSI-X vector 0 */
313 wr32(hw, VPINT_MBX_CTL(device_based_vf_id), VPINT_MBX_CTL_CAUSE_ENA_M);
317 * ice_ena_vf_q_mappings - enable Rx/Tx queue mappings for a VF
318 * @vf: VF to enable the mappings for
319 * @max_txq: max Tx queues allowed on the VF's VSI
320 * @max_rxq: max Rx queues allowed on the VF's VSI
322 static void ice_ena_vf_q_mappings(struct ice_vf *vf, u16 max_txq, u16 max_rxq)
324 struct device *dev = ice_pf_to_dev(vf->pf);
325 struct ice_vsi *vsi = ice_get_vf_vsi(vf);
326 struct ice_hw *hw = &vf->pf->hw;
332 /* set regardless of mapping mode */
333 wr32(hw, VPLAN_TXQ_MAPENA(vf->vf_id), VPLAN_TXQ_MAPENA_TX_ENA_M);
335 /* VF Tx queues allocation */
336 if (vsi->tx_mapping_mode == ICE_VSI_MAP_CONTIG) {
337 /* set the VF PF Tx queue range
338 * VFNUMQ value should be set to (number of queues - 1). A value
339 * of 0 means 1 queue and a value of 255 means 256 queues
341 reg = (((vsi->txq_map[0] << VPLAN_TX_QBASE_VFFIRSTQ_S) &
342 VPLAN_TX_QBASE_VFFIRSTQ_M) |
343 (((max_txq - 1) << VPLAN_TX_QBASE_VFNUMQ_S) &
344 VPLAN_TX_QBASE_VFNUMQ_M));
345 wr32(hw, VPLAN_TX_QBASE(vf->vf_id), reg);
347 dev_err(dev, "Scattered mode for VF Tx queues is not yet implemented\n");
350 /* set regardless of mapping mode */
351 wr32(hw, VPLAN_RXQ_MAPENA(vf->vf_id), VPLAN_RXQ_MAPENA_RX_ENA_M);
353 /* VF Rx queues allocation */
354 if (vsi->rx_mapping_mode == ICE_VSI_MAP_CONTIG) {
355 /* set the VF PF Rx queue range
356 * VFNUMQ value should be set to (number of queues - 1). A value
357 * of 0 means 1 queue and a value of 255 means 256 queues
359 reg = (((vsi->rxq_map[0] << VPLAN_RX_QBASE_VFFIRSTQ_S) &
360 VPLAN_RX_QBASE_VFFIRSTQ_M) |
361 (((max_rxq - 1) << VPLAN_RX_QBASE_VFNUMQ_S) &
362 VPLAN_RX_QBASE_VFNUMQ_M));
363 wr32(hw, VPLAN_RX_QBASE(vf->vf_id), reg);
365 dev_err(dev, "Scattered mode for VF Rx queues is not yet implemented\n");
370 * ice_ena_vf_mappings - enable VF MSIX and queue mapping
371 * @vf: pointer to the VF structure
373 static void ice_ena_vf_mappings(struct ice_vf *vf)
375 struct ice_vsi *vsi = ice_get_vf_vsi(vf);
380 ice_ena_vf_msix_mappings(vf);
381 ice_ena_vf_q_mappings(vf, vsi->alloc_txq, vsi->alloc_rxq);
385 * ice_calc_vf_reg_idx - Calculate the VF's register index in the PF space
386 * @vf: VF to calculate the register index for
387 * @q_vector: a q_vector associated to the VF
389 int ice_calc_vf_reg_idx(struct ice_vf *vf, struct ice_q_vector *q_vector)
393 if (!vf || !q_vector)
398 /* always add one to account for the OICR being the first MSIX */
399 return pf->sriov_base_vector + pf->vfs.num_msix_per * vf->vf_id +
404 * ice_sriov_set_msix_res - Set any used MSIX resources
405 * @pf: pointer to PF structure
406 * @num_msix_needed: number of MSIX vectors needed for all SR-IOV VFs
408 * This function allows SR-IOV resources to be taken from the end of the PF's
409 * allowed HW MSIX vectors so that the irq_tracker will not be affected. We
410 * just set the pf->sriov_base_vector and return success.
412 * If there are not enough resources available, return an error. This should
413 * always be caught by ice_set_per_vf_res().
415 * Return 0 on success, and -EINVAL when there are not enough MSIX vectors
416 * in the PF's space available for SR-IOV.
418 static int ice_sriov_set_msix_res(struct ice_pf *pf, u16 num_msix_needed)
420 u16 total_vectors = pf->hw.func_caps.common_cap.num_msix_vectors;
421 int vectors_used = pf->irq_tracker.num_entries;
422 int sriov_base_vector;
424 sriov_base_vector = total_vectors - num_msix_needed;
426 /* make sure we only grab irq_tracker entries from the list end and
427 * that we have enough available MSIX vectors
429 if (sriov_base_vector < vectors_used)
432 pf->sriov_base_vector = sriov_base_vector;
438 * ice_set_per_vf_res - check if vectors and queues are available
439 * @pf: pointer to the PF structure
440 * @num_vfs: the number of SR-IOV VFs being configured
442 * First, determine HW interrupts from common pool. If we allocate fewer VFs, we
443 * get more vectors and can enable more queues per VF. Note that this does not
444 * grab any vectors from the SW pool already allocated. Also note, that all
445 * vector counts include one for each VF's miscellaneous interrupt vector
448 * Minimum VFs - 2 vectors, 1 queue pair
449 * Small VFs - 5 vectors, 4 queue pairs
450 * Medium VFs - 17 vectors, 16 queue pairs
452 * Second, determine number of queue pairs per VF by starting with a pre-defined
453 * maximum each VF supports. If this is not possible, then we adjust based on
454 * queue pairs available on the device.
456 * Lastly, set queue and MSI-X VF variables tracked by the PF so it can be used
457 * by each VF during VF initialization and reset.
459 static int ice_set_per_vf_res(struct ice_pf *pf, u16 num_vfs)
461 u16 num_msix_per_vf, num_txq, num_rxq, avail_qs;
462 int msix_avail_per_vf, msix_avail_for_sriov;
463 struct device *dev = ice_pf_to_dev(pf);
466 lockdep_assert_held(&pf->vfs.table_lock);
471 /* determine MSI-X resources per VF */
472 msix_avail_for_sriov = pf->hw.func_caps.common_cap.num_msix_vectors -
473 pf->irq_tracker.num_entries;
474 msix_avail_per_vf = msix_avail_for_sriov / num_vfs;
475 if (msix_avail_per_vf >= ICE_NUM_VF_MSIX_MED) {
476 num_msix_per_vf = ICE_NUM_VF_MSIX_MED;
477 } else if (msix_avail_per_vf >= ICE_NUM_VF_MSIX_SMALL) {
478 num_msix_per_vf = ICE_NUM_VF_MSIX_SMALL;
479 } else if (msix_avail_per_vf >= ICE_NUM_VF_MSIX_MULTIQ_MIN) {
480 num_msix_per_vf = ICE_NUM_VF_MSIX_MULTIQ_MIN;
481 } else if (msix_avail_per_vf >= ICE_MIN_INTR_PER_VF) {
482 num_msix_per_vf = ICE_MIN_INTR_PER_VF;
484 dev_err(dev, "Only %d MSI-X interrupts available for SR-IOV. Not enough to support minimum of %d MSI-X interrupts per VF for %d VFs\n",
485 msix_avail_for_sriov, ICE_MIN_INTR_PER_VF,
490 num_txq = min_t(u16, num_msix_per_vf - ICE_NONQ_VECS_VF,
491 ICE_MAX_RSS_QS_PER_VF);
492 avail_qs = ice_get_avail_txq_count(pf) / num_vfs;
495 else if (num_txq > avail_qs)
496 num_txq = rounddown_pow_of_two(avail_qs);
498 num_rxq = min_t(u16, num_msix_per_vf - ICE_NONQ_VECS_VF,
499 ICE_MAX_RSS_QS_PER_VF);
500 avail_qs = ice_get_avail_rxq_count(pf) / num_vfs;
503 else if (num_rxq > avail_qs)
504 num_rxq = rounddown_pow_of_two(avail_qs);
506 if (num_txq < ICE_MIN_QS_PER_VF || num_rxq < ICE_MIN_QS_PER_VF) {
507 dev_err(dev, "Not enough queues to support minimum of %d queue pairs per VF for %d VFs\n",
508 ICE_MIN_QS_PER_VF, num_vfs);
512 err = ice_sriov_set_msix_res(pf, num_msix_per_vf * num_vfs);
514 dev_err(dev, "Unable to set MSI-X resources for %d VFs, err %d\n",
519 /* only allow equal Tx/Rx queue count (i.e. queue pairs) */
520 pf->vfs.num_qps_per = min_t(int, num_txq, num_rxq);
521 pf->vfs.num_msix_per = num_msix_per_vf;
522 dev_info(dev, "Enabling %d VFs with %d vectors and %d queues per VF\n",
523 num_vfs, pf->vfs.num_msix_per, pf->vfs.num_qps_per);
529 * ice_init_vf_vsi_res - initialize/setup VF VSI resources
530 * @vf: VF to initialize/setup the VSI for
532 * This function creates a VSI for the VF, adds a VLAN 0 filter, and sets up the
533 * VF VSI's broadcast filter and is only used during initial VF creation.
535 static int ice_init_vf_vsi_res(struct ice_vf *vf)
537 struct ice_pf *pf = vf->pf;
541 vf->first_vector_idx = ice_calc_vf_first_vector_idx(pf, vf);
543 vsi = ice_vf_vsi_setup(vf);
547 err = ice_vf_init_host_cfg(vf, vsi);
554 ice_vf_vsi_release(vf);
559 * ice_start_vfs - start VFs so they are ready to be used by SR-IOV
560 * @pf: PF the VFs are associated with
562 static int ice_start_vfs(struct ice_pf *pf)
564 struct ice_hw *hw = &pf->hw;
565 unsigned int bkt, it_cnt;
569 lockdep_assert_held(&pf->vfs.table_lock);
572 ice_for_each_vf(pf, bkt, vf) {
573 vf->vf_ops->clear_reset_trigger(vf);
575 retval = ice_init_vf_vsi_res(vf);
577 dev_err(ice_pf_to_dev(pf), "Failed to initialize VSI resources for VF %d, error %d\n",
582 set_bit(ICE_VF_STATE_INIT, vf->vf_states);
583 ice_ena_vf_mappings(vf);
584 wr32(hw, VFGEN_RSTAT(vf->vf_id), VIRTCHNL_VFR_VFACTIVE);
592 ice_for_each_vf(pf, bkt, vf) {
596 ice_dis_vf_mappings(vf);
597 ice_vf_vsi_release(vf);
605 * ice_sriov_free_vf - Free VF memory after all references are dropped
606 * @vf: pointer to VF to free
608 * Called by ice_put_vf through ice_release_vf once the last reference to a VF
609 * structure has been dropped.
611 static void ice_sriov_free_vf(struct ice_vf *vf)
613 mutex_destroy(&vf->cfg_lock);
619 * ice_sriov_clear_reset_state - clears VF Reset status register
620 * @vf: the vf to configure
622 static void ice_sriov_clear_reset_state(struct ice_vf *vf)
624 struct ice_hw *hw = &vf->pf->hw;
626 /* Clear the reset status register so that VF immediately sees that
627 * the device is resetting, even if hardware hasn't yet gotten around
628 * to clearing VFGEN_RSTAT for us.
630 wr32(hw, VFGEN_RSTAT(vf->vf_id), VIRTCHNL_VFR_INPROGRESS);
634 * ice_sriov_clear_mbx_register - clears SRIOV VF's mailbox registers
635 * @vf: the vf to configure
637 static void ice_sriov_clear_mbx_register(struct ice_vf *vf)
639 struct ice_pf *pf = vf->pf;
641 wr32(&pf->hw, VF_MBX_ARQLEN(vf->vf_id), 0);
642 wr32(&pf->hw, VF_MBX_ATQLEN(vf->vf_id), 0);
646 * ice_sriov_trigger_reset_register - trigger VF reset for SRIOV VF
647 * @vf: pointer to VF structure
648 * @is_vflr: true if reset occurred due to VFLR
650 * Trigger and cleanup after a VF reset for a SR-IOV VF.
652 static void ice_sriov_trigger_reset_register(struct ice_vf *vf, bool is_vflr)
654 struct ice_pf *pf = vf->pf;
655 u32 reg, reg_idx, bit_idx;
656 unsigned int vf_abs_id, i;
660 dev = ice_pf_to_dev(pf);
662 vf_abs_id = vf->vf_id + hw->func_caps.vf_base_id;
664 /* In the case of a VFLR, HW has already reset the VF and we just need
665 * to clean up. Otherwise we must first trigger the reset using the
669 reg = rd32(hw, VPGEN_VFRTRIG(vf->vf_id));
670 reg |= VPGEN_VFRTRIG_VFSWR_M;
671 wr32(hw, VPGEN_VFRTRIG(vf->vf_id), reg);
674 /* clear the VFLR bit in GLGEN_VFLRSTAT */
675 reg_idx = (vf_abs_id) / 32;
676 bit_idx = (vf_abs_id) % 32;
677 wr32(hw, GLGEN_VFLRSTAT(reg_idx), BIT(bit_idx));
680 wr32(hw, PF_PCI_CIAA,
681 VF_DEVICE_STATUS | (vf_abs_id << PF_PCI_CIAA_VF_NUM_S));
682 for (i = 0; i < ICE_PCI_CIAD_WAIT_COUNT; i++) {
683 reg = rd32(hw, PF_PCI_CIAD);
684 /* no transactions pending so stop polling */
685 if ((reg & VF_TRANS_PENDING_M) == 0)
688 dev_err(dev, "VF %u PCI transactions stuck\n", vf->vf_id);
689 udelay(ICE_PCI_CIAD_WAIT_DELAY_US);
694 * ice_sriov_poll_reset_status - poll SRIOV VF reset status
695 * @vf: pointer to VF structure
697 * Returns true when reset is successful, else returns false
699 static bool ice_sriov_poll_reset_status(struct ice_vf *vf)
701 struct ice_pf *pf = vf->pf;
705 for (i = 0; i < 10; i++) {
706 /* VF reset requires driver to first reset the VF and then
707 * poll the status register to make sure that the reset
708 * completed successfully.
710 reg = rd32(&pf->hw, VPGEN_VFRSTAT(vf->vf_id));
711 if (reg & VPGEN_VFRSTAT_VFRD_M)
714 /* only sleep if the reset is not done */
715 usleep_range(10, 20);
721 * ice_sriov_clear_reset_trigger - enable VF to access hardware
722 * @vf: VF to enabled hardware access for
724 static void ice_sriov_clear_reset_trigger(struct ice_vf *vf)
726 struct ice_hw *hw = &vf->pf->hw;
729 reg = rd32(hw, VPGEN_VFRTRIG(vf->vf_id));
730 reg &= ~VPGEN_VFRTRIG_VFSWR_M;
731 wr32(hw, VPGEN_VFRTRIG(vf->vf_id), reg);
736 * ice_sriov_create_vsi - Create a new VSI for a VF
737 * @vf: VF to create the VSI for
739 * This is called by ice_vf_recreate_vsi to create the new VSI after the old
740 * VSI has been released.
742 static int ice_sriov_create_vsi(struct ice_vf *vf)
746 vsi = ice_vf_vsi_setup(vf);
754 * ice_sriov_post_vsi_rebuild - tasks to do after the VF's VSI have been rebuilt
755 * @vf: VF to perform tasks on
757 static void ice_sriov_post_vsi_rebuild(struct ice_vf *vf)
759 ice_ena_vf_mappings(vf);
760 wr32(&vf->pf->hw, VFGEN_RSTAT(vf->vf_id), VIRTCHNL_VFR_VFACTIVE);
763 static const struct ice_vf_ops ice_sriov_vf_ops = {
764 .reset_type = ICE_VF_RESET,
765 .free = ice_sriov_free_vf,
766 .clear_reset_state = ice_sriov_clear_reset_state,
767 .clear_mbx_register = ice_sriov_clear_mbx_register,
768 .trigger_reset_register = ice_sriov_trigger_reset_register,
769 .poll_reset_status = ice_sriov_poll_reset_status,
770 .clear_reset_trigger = ice_sriov_clear_reset_trigger,
772 .create_vsi = ice_sriov_create_vsi,
773 .post_vsi_rebuild = ice_sriov_post_vsi_rebuild,
777 * ice_create_vf_entries - Allocate and insert VF entries
778 * @pf: pointer to the PF structure
779 * @num_vfs: the number of VFs to allocate
781 * Allocate new VF entries and insert them into the hash table. Set some
782 * basic default fields for initializing the new VFs.
784 * After this function exits, the hash table will have num_vfs entries
787 * Returns 0 on success or an integer error code on failure.
789 static int ice_create_vf_entries(struct ice_pf *pf, u16 num_vfs)
791 struct ice_vfs *vfs = &pf->vfs;
796 lockdep_assert_held(&vfs->table_lock);
798 for (vf_id = 0; vf_id < num_vfs; vf_id++) {
799 vf = kzalloc(sizeof(*vf), GFP_KERNEL);
802 goto err_free_entries;
804 kref_init(&vf->refcnt);
809 /* set sriov vf ops for VFs created during SRIOV flow */
810 vf->vf_ops = &ice_sriov_vf_ops;
812 ice_initialize_vf_entry(vf);
814 vf->vf_sw_id = pf->first_sw;
816 hash_add_rcu(vfs->table, &vf->entry, vf_id);
822 ice_free_vf_entries(pf);
827 * ice_ena_vfs - enable VFs so they are ready to be used
828 * @pf: pointer to the PF structure
829 * @num_vfs: number of VFs to enable
831 static int ice_ena_vfs(struct ice_pf *pf, u16 num_vfs)
833 struct device *dev = ice_pf_to_dev(pf);
834 struct ice_hw *hw = &pf->hw;
837 /* Disable global interrupt 0 so we don't try to handle the VFLR. */
838 wr32(hw, GLINT_DYN_CTL(pf->oicr_irq.index),
839 ICE_ITR_NONE << GLINT_DYN_CTL_ITR_INDX_S);
840 set_bit(ICE_OICR_INTR_DIS, pf->state);
843 ret = pci_enable_sriov(pf->pdev, num_vfs);
845 goto err_unroll_intr;
847 mutex_lock(&pf->vfs.table_lock);
849 ret = ice_set_per_vf_res(pf, num_vfs);
851 dev_err(dev, "Not enough resources for %d VFs, err %d. Try with fewer number of VFs\n",
853 goto err_unroll_sriov;
856 ret = ice_create_vf_entries(pf, num_vfs);
858 dev_err(dev, "Failed to allocate VF entries for %d VFs\n",
860 goto err_unroll_sriov;
863 ret = ice_start_vfs(pf);
865 dev_err(dev, "Failed to start %d VFs, err %d\n", num_vfs, ret);
867 goto err_unroll_vf_entries;
870 clear_bit(ICE_VF_DIS, pf->state);
872 ret = ice_eswitch_configure(pf);
874 dev_err(dev, "Failed to configure eswitch, err %d\n", ret);
875 goto err_unroll_sriov;
878 /* rearm global interrupts */
879 if (test_and_clear_bit(ICE_OICR_INTR_DIS, pf->state))
880 ice_irq_dynamic_ena(hw, NULL, NULL);
882 mutex_unlock(&pf->vfs.table_lock);
886 err_unroll_vf_entries:
887 ice_free_vf_entries(pf);
889 mutex_unlock(&pf->vfs.table_lock);
890 pci_disable_sriov(pf->pdev);
892 /* rearm interrupts here */
893 ice_irq_dynamic_ena(hw, NULL, NULL);
894 clear_bit(ICE_OICR_INTR_DIS, pf->state);
899 * ice_pci_sriov_ena - Enable or change number of VFs
900 * @pf: pointer to the PF structure
901 * @num_vfs: number of VFs to allocate
903 * Returns 0 on success and negative on failure
905 static int ice_pci_sriov_ena(struct ice_pf *pf, int num_vfs)
907 int pre_existing_vfs = pci_num_vf(pf->pdev);
908 struct device *dev = ice_pf_to_dev(pf);
911 if (pre_existing_vfs && pre_existing_vfs != num_vfs)
913 else if (pre_existing_vfs && pre_existing_vfs == num_vfs)
916 if (num_vfs > pf->vfs.num_supported) {
917 dev_err(dev, "Can't enable %d VFs, max VFs supported is %d\n",
918 num_vfs, pf->vfs.num_supported);
922 dev_info(dev, "Enabling %d VFs\n", num_vfs);
923 err = ice_ena_vfs(pf, num_vfs);
925 dev_err(dev, "Failed to enable SR-IOV: %d\n", err);
929 set_bit(ICE_FLAG_SRIOV_ENA, pf->flags);
934 * ice_check_sriov_allowed - check if SR-IOV is allowed based on various checks
935 * @pf: PF to enabled SR-IOV on
937 static int ice_check_sriov_allowed(struct ice_pf *pf)
939 struct device *dev = ice_pf_to_dev(pf);
941 if (!test_bit(ICE_FLAG_SRIOV_CAPABLE, pf->flags)) {
942 dev_err(dev, "This device is not capable of SR-IOV\n");
946 if (ice_is_safe_mode(pf)) {
947 dev_err(dev, "SR-IOV cannot be configured - Device is in Safe Mode\n");
951 if (!ice_pf_state_is_nominal(pf)) {
952 dev_err(dev, "Cannot enable SR-IOV, device not ready\n");
960 * ice_sriov_configure - Enable or change number of VFs via sysfs
961 * @pdev: pointer to a pci_dev structure
962 * @num_vfs: number of VFs to allocate or 0 to free VFs
964 * This function is called when the user updates the number of VFs in sysfs. On
965 * success return whatever num_vfs was set to by the caller. Return negative on
968 int ice_sriov_configure(struct pci_dev *pdev, int num_vfs)
970 struct ice_pf *pf = pci_get_drvdata(pdev);
971 struct device *dev = ice_pf_to_dev(pf);
974 err = ice_check_sriov_allowed(pf);
979 if (!pci_vfs_assigned(pdev)) {
982 ice_enable_lag(pf->lag);
986 dev_err(dev, "can't free VFs because some are assigned to VMs.\n");
990 err = ice_pci_sriov_ena(pf, num_vfs);
995 ice_disable_lag(pf->lag);
1000 * ice_process_vflr_event - Free VF resources via IRQ calls
1001 * @pf: pointer to the PF structure
1003 * called from the VFLR IRQ handler to
1004 * free up VF resources and state variables
1006 void ice_process_vflr_event(struct ice_pf *pf)
1008 struct ice_hw *hw = &pf->hw;
1013 if (!test_and_clear_bit(ICE_VFLR_EVENT_PENDING, pf->state) ||
1017 mutex_lock(&pf->vfs.table_lock);
1018 ice_for_each_vf(pf, bkt, vf) {
1019 u32 reg_idx, bit_idx;
1021 reg_idx = (hw->func_caps.vf_base_id + vf->vf_id) / 32;
1022 bit_idx = (hw->func_caps.vf_base_id + vf->vf_id) % 32;
1023 /* read GLGEN_VFLRSTAT register to find out the flr VFs */
1024 reg = rd32(hw, GLGEN_VFLRSTAT(reg_idx));
1025 if (reg & BIT(bit_idx))
1026 /* GLGEN_VFLRSTAT bit will be cleared in ice_reset_vf */
1027 ice_reset_vf(vf, ICE_VF_RESET_VFLR | ICE_VF_RESET_LOCK);
1029 mutex_unlock(&pf->vfs.table_lock);
1033 * ice_get_vf_from_pfq - get the VF who owns the PF space queue passed in
1034 * @pf: PF used to index all VFs
1035 * @pfq: queue index relative to the PF's function space
1037 * If no VF is found who owns the pfq then return NULL, otherwise return a
1038 * pointer to the VF who owns the pfq
1040 * If this function returns non-NULL, it acquires a reference count of the VF
1041 * structure. The caller is responsible for calling ice_put_vf() to drop this
1044 static struct ice_vf *ice_get_vf_from_pfq(struct ice_pf *pf, u16 pfq)
1050 ice_for_each_vf_rcu(pf, bkt, vf) {
1051 struct ice_vsi *vsi;
1054 vsi = ice_get_vf_vsi(vf);
1058 ice_for_each_rxq(vsi, rxq_idx)
1059 if (vsi->rxq_map[rxq_idx] == pfq) {
1060 struct ice_vf *found;
1062 if (kref_get_unless_zero(&vf->refcnt))
1076 * ice_globalq_to_pfq - convert from global queue index to PF space queue index
1077 * @pf: PF used for conversion
1078 * @globalq: global queue index used to convert to PF space queue index
1080 static u32 ice_globalq_to_pfq(struct ice_pf *pf, u32 globalq)
1082 return globalq - pf->hw.func_caps.common_cap.rxq_first_id;
1086 * ice_vf_lan_overflow_event - handle LAN overflow event for a VF
1087 * @pf: PF that the LAN overflow event happened on
1088 * @event: structure holding the event information for the LAN overflow event
1090 * Determine if the LAN overflow event was caused by a VF queue. If it was not
1091 * caused by a VF, do nothing. If a VF caused this LAN overflow event trigger a
1092 * reset on the offending VF.
1095 ice_vf_lan_overflow_event(struct ice_pf *pf, struct ice_rq_event_info *event)
1097 u32 gldcb_rtctq, queue;
1100 gldcb_rtctq = le32_to_cpu(event->desc.params.lan_overflow.prtdcb_ruptq);
1101 dev_dbg(ice_pf_to_dev(pf), "GLDCB_RTCTQ: 0x%08x\n", gldcb_rtctq);
1103 /* event returns device global Rx queue number */
1104 queue = (gldcb_rtctq & GLDCB_RTCTQ_RXQNUM_M) >>
1105 GLDCB_RTCTQ_RXQNUM_S;
1107 vf = ice_get_vf_from_pfq(pf, ice_globalq_to_pfq(pf, queue));
1111 ice_reset_vf(vf, ICE_VF_RESET_NOTIFY | ICE_VF_RESET_LOCK);
1116 * ice_set_vf_spoofchk
1117 * @netdev: network interface device structure
1118 * @vf_id: VF identifier
1119 * @ena: flag to enable or disable feature
1121 * Enable or disable VF spoof checking
1123 int ice_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool ena)
1125 struct ice_netdev_priv *np = netdev_priv(netdev);
1126 struct ice_pf *pf = np->vsi->back;
1127 struct ice_vsi *vf_vsi;
1132 dev = ice_pf_to_dev(pf);
1134 vf = ice_get_vf_by_id(pf, vf_id);
1138 ret = ice_check_vf_ready_for_cfg(vf);
1142 vf_vsi = ice_get_vf_vsi(vf);
1144 netdev_err(netdev, "VSI %d for VF %d is null\n",
1145 vf->lan_vsi_idx, vf->vf_id);
1150 if (vf_vsi->type != ICE_VSI_VF) {
1151 netdev_err(netdev, "Type %d of VSI %d for VF %d is no ICE_VSI_VF\n",
1152 vf_vsi->type, vf_vsi->vsi_num, vf->vf_id);
1157 if (ena == vf->spoofchk) {
1158 dev_dbg(dev, "VF spoofchk already %s\n", ena ? "ON" : "OFF");
1163 ret = ice_vsi_apply_spoofchk(vf_vsi, ena);
1165 dev_err(dev, "Failed to set spoofchk %s for VF %d VSI %d\n error %d\n",
1166 ena ? "ON" : "OFF", vf->vf_id, vf_vsi->vsi_num, ret);
1177 * @netdev: network interface device structure
1178 * @vf_id: VF identifier
1179 * @ivi: VF configuration structure
1181 * return VF configuration
1184 ice_get_vf_cfg(struct net_device *netdev, int vf_id, struct ifla_vf_info *ivi)
1186 struct ice_pf *pf = ice_netdev_to_pf(netdev);
1190 vf = ice_get_vf_by_id(pf, vf_id);
1194 ret = ice_check_vf_ready_for_cfg(vf);
1199 ether_addr_copy(ivi->mac, vf->hw_lan_addr);
1201 /* VF configuration for VLAN and applicable QoS */
1202 ivi->vlan = ice_vf_get_port_vlan_id(vf);
1203 ivi->qos = ice_vf_get_port_vlan_prio(vf);
1204 if (ice_vf_is_port_vlan_ena(vf))
1205 ivi->vlan_proto = cpu_to_be16(ice_vf_get_port_vlan_tpid(vf));
1207 ivi->trusted = vf->trusted;
1208 ivi->spoofchk = vf->spoofchk;
1209 if (!vf->link_forced)
1210 ivi->linkstate = IFLA_VF_LINK_STATE_AUTO;
1211 else if (vf->link_up)
1212 ivi->linkstate = IFLA_VF_LINK_STATE_ENABLE;
1214 ivi->linkstate = IFLA_VF_LINK_STATE_DISABLE;
1215 ivi->max_tx_rate = vf->max_tx_rate;
1216 ivi->min_tx_rate = vf->min_tx_rate;
1225 * @netdev: network interface device structure
1226 * @vf_id: VF identifier
1229 * program VF MAC address
1231 int ice_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
1233 struct ice_pf *pf = ice_netdev_to_pf(netdev);
1237 if (is_multicast_ether_addr(mac)) {
1238 netdev_err(netdev, "%pM not a valid unicast address\n", mac);
1242 vf = ice_get_vf_by_id(pf, vf_id);
1246 /* nothing left to do, unicast MAC already set */
1247 if (ether_addr_equal(vf->dev_lan_addr, mac) &&
1248 ether_addr_equal(vf->hw_lan_addr, mac)) {
1253 ret = ice_check_vf_ready_for_cfg(vf);
1257 mutex_lock(&vf->cfg_lock);
1259 /* VF is notified of its new MAC via the PF's response to the
1260 * VIRTCHNL_OP_GET_VF_RESOURCES message after the VF has been reset
1262 ether_addr_copy(vf->dev_lan_addr, mac);
1263 ether_addr_copy(vf->hw_lan_addr, mac);
1264 if (is_zero_ether_addr(mac)) {
1265 /* VF will send VIRTCHNL_OP_ADD_ETH_ADDR message with its MAC */
1266 vf->pf_set_mac = false;
1267 netdev_info(netdev, "Removing MAC on VF %d. VF driver will be reinitialized\n",
1270 /* PF will add MAC rule for the VF */
1271 vf->pf_set_mac = true;
1272 netdev_info(netdev, "Setting MAC %pM on VF %d. VF driver will be reinitialized\n",
1276 ice_reset_vf(vf, ICE_VF_RESET_NOTIFY);
1277 mutex_unlock(&vf->cfg_lock);
1286 * @netdev: network interface device structure
1287 * @vf_id: VF identifier
1288 * @trusted: Boolean value to enable/disable trusted VF
1290 * Enable or disable a given VF as trusted
1292 int ice_set_vf_trust(struct net_device *netdev, int vf_id, bool trusted)
1294 struct ice_pf *pf = ice_netdev_to_pf(netdev);
1298 vf = ice_get_vf_by_id(pf, vf_id);
1302 if (ice_is_eswitch_mode_switchdev(pf)) {
1303 dev_info(ice_pf_to_dev(pf), "Trusted VF is forbidden in switchdev mode\n");
1307 ret = ice_check_vf_ready_for_cfg(vf);
1311 /* Check if already trusted */
1312 if (trusted == vf->trusted) {
1317 mutex_lock(&vf->cfg_lock);
1319 vf->trusted = trusted;
1320 ice_reset_vf(vf, ICE_VF_RESET_NOTIFY);
1321 dev_info(ice_pf_to_dev(pf), "VF %u is now %strusted\n",
1322 vf_id, trusted ? "" : "un");
1324 mutex_unlock(&vf->cfg_lock);
1332 * ice_set_vf_link_state
1333 * @netdev: network interface device structure
1334 * @vf_id: VF identifier
1335 * @link_state: required link state
1337 * Set VF's link state, irrespective of physical link state status
1339 int ice_set_vf_link_state(struct net_device *netdev, int vf_id, int link_state)
1341 struct ice_pf *pf = ice_netdev_to_pf(netdev);
1345 vf = ice_get_vf_by_id(pf, vf_id);
1349 ret = ice_check_vf_ready_for_cfg(vf);
1353 switch (link_state) {
1354 case IFLA_VF_LINK_STATE_AUTO:
1355 vf->link_forced = false;
1357 case IFLA_VF_LINK_STATE_ENABLE:
1358 vf->link_forced = true;
1361 case IFLA_VF_LINK_STATE_DISABLE:
1362 vf->link_forced = true;
1363 vf->link_up = false;
1370 ice_vc_notify_vf_link_state(vf);
1378 * ice_calc_all_vfs_min_tx_rate - calculate cumulative min Tx rate on all VFs
1379 * @pf: PF associated with VFs
1381 static int ice_calc_all_vfs_min_tx_rate(struct ice_pf *pf)
1388 ice_for_each_vf_rcu(pf, bkt, vf)
1389 rate += vf->min_tx_rate;
1396 * ice_min_tx_rate_oversubscribed - check if min Tx rate causes oversubscription
1397 * @vf: VF trying to configure min_tx_rate
1398 * @min_tx_rate: min Tx rate in Mbps
1400 * Check if the min_tx_rate being passed in will cause oversubscription of total
1401 * min_tx_rate based on the current link speed and all other VFs configured
1404 * Return true if the passed min_tx_rate would cause oversubscription, else
1408 ice_min_tx_rate_oversubscribed(struct ice_vf *vf, int min_tx_rate)
1410 struct ice_vsi *vsi = ice_get_vf_vsi(vf);
1411 int all_vfs_min_tx_rate;
1412 int link_speed_mbps;
1417 link_speed_mbps = ice_get_link_speed_mbps(vsi);
1418 all_vfs_min_tx_rate = ice_calc_all_vfs_min_tx_rate(vf->pf);
1420 /* this VF's previous rate is being overwritten */
1421 all_vfs_min_tx_rate -= vf->min_tx_rate;
1423 if (all_vfs_min_tx_rate + min_tx_rate > link_speed_mbps) {
1424 dev_err(ice_pf_to_dev(vf->pf), "min_tx_rate of %d Mbps on VF %u would cause oversubscription of %d Mbps based on the current link speed %d Mbps\n",
1425 min_tx_rate, vf->vf_id,
1426 all_vfs_min_tx_rate + min_tx_rate - link_speed_mbps,
1435 * ice_set_vf_bw - set min/max VF bandwidth
1436 * @netdev: network interface device structure
1437 * @vf_id: VF identifier
1438 * @min_tx_rate: Minimum Tx rate in Mbps
1439 * @max_tx_rate: Maximum Tx rate in Mbps
1442 ice_set_vf_bw(struct net_device *netdev, int vf_id, int min_tx_rate,
1445 struct ice_pf *pf = ice_netdev_to_pf(netdev);
1446 struct ice_vsi *vsi;
1451 dev = ice_pf_to_dev(pf);
1453 vf = ice_get_vf_by_id(pf, vf_id);
1457 ret = ice_check_vf_ready_for_cfg(vf);
1461 vsi = ice_get_vf_vsi(vf);
1467 if (min_tx_rate && ice_is_dcb_active(pf)) {
1468 dev_err(dev, "DCB on PF is currently enabled. VF min Tx rate limiting not allowed on this PF.\n");
1473 if (ice_min_tx_rate_oversubscribed(vf, min_tx_rate)) {
1478 if (vf->min_tx_rate != (unsigned int)min_tx_rate) {
1479 ret = ice_set_min_bw_limit(vsi, (u64)min_tx_rate * 1000);
1481 dev_err(dev, "Unable to set min-tx-rate for VF %d\n",
1486 vf->min_tx_rate = min_tx_rate;
1489 if (vf->max_tx_rate != (unsigned int)max_tx_rate) {
1490 ret = ice_set_max_bw_limit(vsi, (u64)max_tx_rate * 1000);
1492 dev_err(dev, "Unable to set max-tx-rate for VF %d\n",
1497 vf->max_tx_rate = max_tx_rate;
1506 * ice_get_vf_stats - populate some stats for the VF
1507 * @netdev: the netdev of the PF
1508 * @vf_id: the host OS identifier (0-255)
1509 * @vf_stats: pointer to the OS memory to be initialized
1511 int ice_get_vf_stats(struct net_device *netdev, int vf_id,
1512 struct ifla_vf_stats *vf_stats)
1514 struct ice_pf *pf = ice_netdev_to_pf(netdev);
1515 struct ice_eth_stats *stats;
1516 struct ice_vsi *vsi;
1520 vf = ice_get_vf_by_id(pf, vf_id);
1524 ret = ice_check_vf_ready_for_cfg(vf);
1528 vsi = ice_get_vf_vsi(vf);
1534 ice_update_eth_stats(vsi);
1535 stats = &vsi->eth_stats;
1537 memset(vf_stats, 0, sizeof(*vf_stats));
1539 vf_stats->rx_packets = stats->rx_unicast + stats->rx_broadcast +
1540 stats->rx_multicast;
1541 vf_stats->tx_packets = stats->tx_unicast + stats->tx_broadcast +
1542 stats->tx_multicast;
1543 vf_stats->rx_bytes = stats->rx_bytes;
1544 vf_stats->tx_bytes = stats->tx_bytes;
1545 vf_stats->broadcast = stats->rx_broadcast;
1546 vf_stats->multicast = stats->rx_multicast;
1547 vf_stats->rx_dropped = stats->rx_discards;
1548 vf_stats->tx_dropped = stats->tx_discards;
1556 * ice_is_supported_port_vlan_proto - make sure the vlan_proto is supported
1557 * @hw: hardware structure used to check the VLAN mode
1558 * @vlan_proto: VLAN TPID being checked
1560 * If the device is configured in Double VLAN Mode (DVM), then both ETH_P_8021Q
1561 * and ETH_P_8021AD are supported. If the device is configured in Single VLAN
1562 * Mode (SVM), then only ETH_P_8021Q is supported.
1565 ice_is_supported_port_vlan_proto(struct ice_hw *hw, u16 vlan_proto)
1567 bool is_supported = false;
1569 switch (vlan_proto) {
1571 is_supported = true;
1574 if (ice_is_dvm_ena(hw))
1575 is_supported = true;
1579 return is_supported;
1583 * ice_set_vf_port_vlan
1584 * @netdev: network interface device structure
1585 * @vf_id: VF identifier
1586 * @vlan_id: VLAN ID being set
1587 * @qos: priority setting
1588 * @vlan_proto: VLAN protocol
1590 * program VF Port VLAN ID and/or QoS
1593 ice_set_vf_port_vlan(struct net_device *netdev, int vf_id, u16 vlan_id, u8 qos,
1596 struct ice_pf *pf = ice_netdev_to_pf(netdev);
1597 u16 local_vlan_proto = ntohs(vlan_proto);
1602 dev = ice_pf_to_dev(pf);
1604 if (vlan_id >= VLAN_N_VID || qos > 7) {
1605 dev_err(dev, "Invalid Port VLAN parameters for VF %d, ID %d, QoS %d\n",
1606 vf_id, vlan_id, qos);
1610 if (!ice_is_supported_port_vlan_proto(&pf->hw, local_vlan_proto)) {
1611 dev_err(dev, "VF VLAN protocol 0x%04x is not supported\n",
1613 return -EPROTONOSUPPORT;
1616 vf = ice_get_vf_by_id(pf, vf_id);
1620 ret = ice_check_vf_ready_for_cfg(vf);
1624 if (ice_vf_get_port_vlan_prio(vf) == qos &&
1625 ice_vf_get_port_vlan_tpid(vf) == local_vlan_proto &&
1626 ice_vf_get_port_vlan_id(vf) == vlan_id) {
1627 /* duplicate request, so just return success */
1628 dev_dbg(dev, "Duplicate port VLAN %u, QoS %u, TPID 0x%04x request\n",
1629 vlan_id, qos, local_vlan_proto);
1634 mutex_lock(&vf->cfg_lock);
1636 vf->port_vlan_info = ICE_VLAN(local_vlan_proto, vlan_id, qos);
1637 if (ice_vf_is_port_vlan_ena(vf))
1638 dev_info(dev, "Setting VLAN %u, QoS %u, TPID 0x%04x on VF %d\n",
1639 vlan_id, qos, local_vlan_proto, vf_id);
1641 dev_info(dev, "Clearing port VLAN on VF %d\n", vf_id);
1643 ice_reset_vf(vf, ICE_VF_RESET_NOTIFY);
1644 mutex_unlock(&vf->cfg_lock);
1652 * ice_print_vf_rx_mdd_event - print VF Rx malicious driver detect event
1653 * @vf: pointer to the VF structure
1655 void ice_print_vf_rx_mdd_event(struct ice_vf *vf)
1657 struct ice_pf *pf = vf->pf;
1660 dev = ice_pf_to_dev(pf);
1662 dev_info(dev, "%d Rx Malicious Driver Detection events detected on PF %d VF %d MAC %pM. mdd-auto-reset-vfs=%s\n",
1663 vf->mdd_rx_events.count, pf->hw.pf_id, vf->vf_id,
1665 test_bit(ICE_FLAG_MDD_AUTO_RESET_VF, pf->flags)
1670 * ice_print_vfs_mdd_events - print VFs malicious driver detect event
1671 * @pf: pointer to the PF structure
1673 * Called from ice_handle_mdd_event to rate limit and print VFs MDD events.
1675 void ice_print_vfs_mdd_events(struct ice_pf *pf)
1677 struct device *dev = ice_pf_to_dev(pf);
1678 struct ice_hw *hw = &pf->hw;
1682 /* check that there are pending MDD events to print */
1683 if (!test_and_clear_bit(ICE_MDD_VF_PRINT_PENDING, pf->state))
1686 /* VF MDD event logs are rate limited to one second intervals */
1687 if (time_is_after_jiffies(pf->vfs.last_printed_mdd_jiffies + HZ * 1))
1690 pf->vfs.last_printed_mdd_jiffies = jiffies;
1692 mutex_lock(&pf->vfs.table_lock);
1693 ice_for_each_vf(pf, bkt, vf) {
1694 /* only print Rx MDD event message if there are new events */
1695 if (vf->mdd_rx_events.count != vf->mdd_rx_events.last_printed) {
1696 vf->mdd_rx_events.last_printed =
1697 vf->mdd_rx_events.count;
1698 ice_print_vf_rx_mdd_event(vf);
1701 /* only print Tx MDD event message if there are new events */
1702 if (vf->mdd_tx_events.count != vf->mdd_tx_events.last_printed) {
1703 vf->mdd_tx_events.last_printed =
1704 vf->mdd_tx_events.count;
1706 dev_info(dev, "%d Tx Malicious Driver Detection events detected on PF %d VF %d MAC %pM.\n",
1707 vf->mdd_tx_events.count, hw->pf_id, vf->vf_id,
1711 mutex_unlock(&pf->vfs.table_lock);
1715 * ice_restore_all_vfs_msi_state - restore VF MSI state after PF FLR
1716 * @pdev: pointer to a pci_dev structure
1718 * Called when recovering from a PF FLR to restore interrupt capability to
1721 void ice_restore_all_vfs_msi_state(struct pci_dev *pdev)
1726 if (!pci_num_vf(pdev))
1729 pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
1731 struct pci_dev *vfdev;
1733 pci_read_config_word(pdev, pos + PCI_SRIOV_VF_DID,
1735 vfdev = pci_get_device(pdev->vendor, vf_id, NULL);
1737 if (vfdev->is_virtfn && vfdev->physfn == pdev)
1738 pci_restore_msi_state(vfdev);
1739 vfdev = pci_get_device(pdev->vendor, vf_id,