27 static int pf_provision_vfs(struct xe_device *xe, unsigned int num_vfs)  in pf_provision_vfs()  argument
31 	int result = 0, err;  in pf_provision_vfs()
33 	for_each_gt(gt, xe, id) {  in pf_provision_vfs()
43 static void pf_unprovision_vfs(struct xe_device *xe, unsigned int num_vfs)  in pf_unprovision_vfs()  argument
49 	for_each_gt(gt, xe, id)  in pf_unprovision_vfs()
54 static void pf_reset_vfs(struct xe_device *xe, unsigned int num_vfs)  in pf_reset_vfs()  argument
60 	for_each_gt(gt, xe, id)  in pf_reset_vfs()
65 static int pf_enable_vfs(struct xe_device *xe, int num_vfs)  in pf_enable_vfs()  argument
67 	struct pci_dev *pdev = to_pci_dev(xe->drm.dev);  in pf_enable_vfs()
68 	int total_vfs = xe_sriov_pf_get_totalvfs(xe);  in pf_enable_vfs()
71 	xe_assert(xe, IS_SRIOV_PF(xe));  in pf_enable_vfs()
72 	xe_assert(xe, num_vfs > 0);  in pf_enable_vfs()
73 	xe_assert(xe, num_vfs <= total_vfs);  in pf_enable_vfs()
74 	xe_sriov_dbg(xe, "enabling %u VF%s\n", num_vfs, str_plural(num_vfs));  in pf_enable_vfs()
85 	xe_pm_runtime_get_noresume(xe);  in pf_enable_vfs()
87 	err = pf_provision_vfs(xe, num_vfs);  in pf_enable_vfs()
88 	if (err < 0)  in pf_enable_vfs()
92 	if (err < 0)  in pf_enable_vfs()
95 	xe_sriov_info(xe, "Enabled %u of %u VF%s\n",  in pf_enable_vfs()
100 	pf_unprovision_vfs(xe, num_vfs);  in pf_enable_vfs()
101 	xe_pm_runtime_put(xe);  in pf_enable_vfs()
103 	xe_sriov_notice(xe, "Failed to enable %u VF%s (%pe)\n",  in pf_enable_vfs()
108 static int pf_disable_vfs(struct xe_device *xe)  in pf_disable_vfs()  argument
110 	struct device *dev = xe->drm.dev;  in pf_disable_vfs()
114 	xe_assert(xe, IS_SRIOV_PF(xe));  in pf_disable_vfs()
115 	xe_sriov_dbg(xe, "disabling %u VF%s\n", num_vfs, str_plural(num_vfs));  in pf_disable_vfs()
118 		return 0;  in pf_disable_vfs()
122 	pf_reset_vfs(xe, num_vfs);  in pf_disable_vfs()
124 	pf_unprovision_vfs(xe, num_vfs);  in pf_disable_vfs()
127 	xe_pm_runtime_put(xe);  in pf_disable_vfs()
129 	xe_sriov_info(xe, "Disabled %u VF%s\n", num_vfs, str_plural(num_vfs));  in pf_disable_vfs()
130 	return 0;  in pf_disable_vfs()
138  * This is the Xe implementation of struct pci_driver.sriov_configure callback.
147 	struct xe_device *xe = pdev_to_xe_device(pdev);  in xe_pci_sriov_configure()  local
150 	if (!IS_SRIOV_PF(xe))  in xe_pci_sriov_configure()
153 	if (num_vfs < 0)  in xe_pci_sriov_configure()
156 	if (num_vfs > xe_sriov_pf_get_totalvfs(xe))  in xe_pci_sriov_configure()
162 	xe_pm_runtime_get(xe);  in xe_pci_sriov_configure()
163 	if (num_vfs > 0)  in xe_pci_sriov_configure()
164 		ret = pf_enable_vfs(xe, num_vfs);  in xe_pci_sriov_configure()
166 		ret = pf_disable_vfs(xe);  in xe_pci_sriov_configure()
167 	xe_pm_runtime_put(xe);  in xe_pci_sriov_configure()