15 ice_init_irq_tracker(struct ice_pf *pf, unsigned int max_vectors,  in ice_init_irq_tracker()  argument
18 	pf->irq_tracker.num_entries = max_vectors;  in ice_init_irq_tracker()
19 	pf->irq_tracker.num_static = num_static;  in ice_init_irq_tracker()
20 	xa_init_flags(&pf->irq_tracker.entries, XA_FLAGS_ALLOC);  in ice_init_irq_tracker()
27 static void ice_deinit_irq_tracker(struct ice_pf *pf)  in ice_deinit_irq_tracker()  argument
29 	xa_destroy(&pf->irq_tracker.entries);  in ice_deinit_irq_tracker()
37 static void ice_free_irq_res(struct ice_pf *pf, u16 index)  in ice_free_irq_res()  argument
41 	entry = xa_erase(&pf->irq_tracker.entries, index);  in ice_free_irq_res()
56 static struct ice_irq_entry *ice_get_irq_res(struct ice_pf *pf, bool dyn_only)  in ice_get_irq_res()  argument
58 	struct xa_limit limit = { .max = pf->irq_tracker.num_entries,  in ice_get_irq_res()
60 	unsigned int num_static = pf->irq_tracker.num_static;  in ice_get_irq_res()
73 	ret = xa_alloc(&pf->irq_tracker.entries, &index, entry, limit,  in ice_get_irq_res()
96 static void ice_reduce_msix_usage(struct ice_pf *pf, int v_remain)  in ice_reduce_msix_usage()  argument
100 	if (!ice_is_rdma_ena(pf)) {  in ice_reduce_msix_usage()
101 		pf->num_lan_msix = v_remain;  in ice_reduce_msix_usage()
109 		dev_warn(ice_pf_to_dev(pf), "Not enough MSI-X vectors to support RDMA.\n");  in ice_reduce_msix_usage()
110 		clear_bit(ICE_FLAG_RDMA_ENA, pf->flags);  in ice_reduce_msix_usage()
112 		pf->num_rdma_msix = 0;  in ice_reduce_msix_usage()
113 		pf->num_lan_msix = ICE_MIN_LAN_TXRX_MSIX;  in ice_reduce_msix_usage()
118 		pf->num_rdma_msix = ICE_MIN_RDMA_MSIX;  in ice_reduce_msix_usage()
119 		pf->num_lan_msix = v_remain - ICE_MIN_RDMA_MSIX;  in ice_reduce_msix_usage()
123 		pf->num_rdma_msix = (v_remain - ICE_RDMA_NUM_AEQ_MSIX) / 2 +  in ice_reduce_msix_usage()
125 		pf->num_lan_msix = v_remain - pf->num_rdma_msix;  in ice_reduce_msix_usage()
137 static int ice_ena_msix_range(struct ice_pf *pf)  in ice_ena_msix_range()  argument
140 	struct device *dev = ice_pf_to_dev(pf);  in ice_ena_msix_range()
143 	hw_num_msix = pf->hw.func_caps.common_cap.num_msix_vectors;  in ice_ena_msix_range()
150 	if (test_bit(ICE_FLAG_FD_ENA, pf->flags))  in ice_ena_msix_range()
159 	pf->num_lan_msix = num_cpus;  in ice_ena_msix_range()
160 	v_wanted += pf->num_lan_msix;  in ice_ena_msix_range()
163 	if (ice_is_rdma_ena(pf)) {  in ice_ena_msix_range()
164 		pf->num_rdma_msix = num_cpus + ICE_RDMA_NUM_AEQ_MSIX;  in ice_ena_msix_range()
165 		v_wanted += pf->num_rdma_msix;  in ice_ena_msix_range()
185 		ice_reduce_msix_usage(pf, v_remain);  in ice_ena_msix_range()
186 		v_wanted = pf->num_lan_msix + pf->num_rdma_msix + v_other;  in ice_ena_msix_range()
189 			   pf->num_lan_msix);  in ice_ena_msix_range()
190 		if (ice_is_rdma_ena(pf))  in ice_ena_msix_range()
192 				   pf->num_rdma_msix);  in ice_ena_msix_range()
196 	v_actual = pci_alloc_irq_vectors(pf->pdev, ICE_MIN_MSIX, v_wanted,  in ice_ena_msix_range()
210 			pci_free_irq_vectors(pf->pdev);  in ice_ena_msix_range()
219 			ice_reduce_msix_usage(pf, v_remain);  in ice_ena_msix_range()
222 				   pf->num_lan_msix);  in ice_ena_msix_range()
224 			if (ice_is_rdma_ena(pf))  in ice_ena_msix_range()
226 					   pf->num_rdma_msix);  in ice_ena_msix_range()
233 	pf->num_rdma_msix = 0;  in ice_ena_msix_range()
234 	pf->num_lan_msix = 0;  in ice_ena_msix_range()
242 void ice_clear_interrupt_scheme(struct ice_pf *pf)  in ice_clear_interrupt_scheme()  argument
244 	pci_free_irq_vectors(pf->pdev);  in ice_clear_interrupt_scheme()
245 	ice_deinit_irq_tracker(pf);  in ice_clear_interrupt_scheme()
252 int ice_init_interrupt_scheme(struct ice_pf *pf)  in ice_init_interrupt_scheme()  argument
254 	int total_vectors = pf->hw.func_caps.common_cap.num_msix_vectors;  in ice_init_interrupt_scheme()
257 	vectors = ice_ena_msix_range(pf);  in ice_init_interrupt_scheme()
262 	if (pci_msix_can_alloc_dyn(pf->pdev))  in ice_init_interrupt_scheme()
267 	ice_init_irq_tracker(pf, max_vectors, vectors);  in ice_init_interrupt_scheme()
294 struct msi_map ice_alloc_irq(struct ice_pf *pf, bool dyn_only)  in ice_alloc_irq()  argument
296 	int sriov_base_vector = pf->sriov_base_vector;  in ice_alloc_irq()
298 	struct device *dev = ice_pf_to_dev(pf);  in ice_alloc_irq()
301 	entry = ice_get_irq_res(pf, dyn_only);  in ice_alloc_irq()
309 	if (pci_msix_can_alloc_dyn(pf->pdev) && entry->dynamic) {  in ice_alloc_irq()
310 		map = pci_msix_alloc_irq_at(pf->pdev, entry->index, NULL);  in ice_alloc_irq()
316 		map.virq = pci_irq_vector(pf->pdev, map.index);  in ice_alloc_irq()
323 	ice_free_irq_res(pf, entry->index);  in ice_alloc_irq()
335 void ice_free_irq(struct ice_pf *pf, struct msi_map map)  in ice_free_irq()  argument
339 	entry = xa_load(&pf->irq_tracker.entries, map.index);  in ice_free_irq()
342 		dev_err(ice_pf_to_dev(pf), "Failed to get MSIX interrupt entry at index %d",  in ice_free_irq()
347 	dev_dbg(ice_pf_to_dev(pf), "Free irq at index %d\n", map.index);  in ice_free_irq()
350 		pci_msix_free_irq(pf->pdev, map);  in ice_free_irq()
352 	ice_free_irq_res(pf, map.index);  in ice_free_irq()
363 int ice_get_max_used_msix_vector(struct ice_pf *pf)  in ice_get_max_used_msix_vector()  argument
369 	start = pf->irq_tracker.num_static;  in ice_get_max_used_msix_vector()
372 	xa_for_each_start(&pf->irq_tracker.entries, index, entry, start) {  in ice_get_max_used_msix_vector()