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47#include <linux/kernel.h>
48#include <linux/module.h>
49#include <linux/pci.h>
50#include <linux/init.h>
51#include <linux/types.h>
52#include <linux/fs.h>
53#include <linux/slab.h>
54#include <linux/errno.h>
55#include <linux/device.h>
56#include <linux/dma-mapping.h>
57#include <linux/platform_device.h>
58#include <linux/workqueue.h>
59#include <linux/io.h>
60#include <adf_accel_devices.h>
61#include <adf_common_drv.h>
62#include <adf_cfg.h>
63#include "adf_c3xxxvf_hw_data.h"
64
65#define ADF_SYSTEM_DEVICE(device_id) \
66 {PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)}
67
68static const struct pci_device_id adf_pci_tbl[] = {
69 ADF_SYSTEM_DEVICE(ADF_C3XXXIOV_PCI_DEVICE_ID),
70 {0,}
71};
72MODULE_DEVICE_TABLE(pci, adf_pci_tbl);
73
74static int adf_probe(struct pci_dev *dev, const struct pci_device_id *ent);
75static void adf_remove(struct pci_dev *dev);
76
77static struct pci_driver adf_driver = {
78 .id_table = adf_pci_tbl,
79 .name = ADF_C3XXXVF_DEVICE_NAME,
80 .probe = adf_probe,
81 .remove = adf_remove,
82};
83
84static void adf_cleanup_pci_dev(struct adf_accel_dev *accel_dev)
85{
86 pci_release_regions(accel_dev->accel_pci_dev.pci_dev);
87 pci_disable_device(accel_dev->accel_pci_dev.pci_dev);
88}
89
90static void adf_cleanup_accel(struct adf_accel_dev *accel_dev)
91{
92 struct adf_accel_pci *accel_pci_dev = &accel_dev->accel_pci_dev;
93 struct adf_accel_dev *pf;
94 int i;
95
96 for (i = 0; i < ADF_PCI_MAX_BARS; i++) {
97 struct adf_bar *bar = &accel_pci_dev->pci_bars[i];
98
99 if (bar->virt_addr)
100 pci_iounmap(accel_pci_dev->pci_dev, bar->virt_addr);
101 }
102
103 if (accel_dev->hw_device) {
104 switch (accel_pci_dev->pci_dev->device) {
105 case ADF_C3XXXIOV_PCI_DEVICE_ID:
106 adf_clean_hw_data_c3xxxiov(accel_dev->hw_device);
107 break;
108 default:
109 break;
110 }
111 kfree(accel_dev->hw_device);
112 accel_dev->hw_device = NULL;
113 }
114 adf_cfg_dev_remove(accel_dev);
115 debugfs_remove(accel_dev->debugfs_dir);
116 pf = adf_devmgr_pci_to_accel_dev(accel_pci_dev->pci_dev->physfn);
117 adf_devmgr_rm_dev(accel_dev, pf);
118}
119
120static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
121{
122 struct adf_accel_dev *accel_dev;
123 struct adf_accel_dev *pf;
124 struct adf_accel_pci *accel_pci_dev;
125 struct adf_hw_device_data *hw_data;
126 char name[ADF_DEVICE_NAME_LENGTH];
127 unsigned int i, bar_nr;
128 unsigned long bar_mask;
129 int ret;
130
131 switch (ent->device) {
132 case ADF_C3XXXIOV_PCI_DEVICE_ID:
133 break;
134 default:
135 dev_err(&pdev->dev, "Invalid device 0x%x.\n", ent->device);
136 return -ENODEV;
137 }
138
139 accel_dev = kzalloc_node(sizeof(*accel_dev), GFP_KERNEL,
140 dev_to_node(&pdev->dev));
141 if (!accel_dev)
142 return -ENOMEM;
143
144 accel_dev->is_vf = true;
145 pf = adf_devmgr_pci_to_accel_dev(pdev->physfn);
146 accel_pci_dev = &accel_dev->accel_pci_dev;
147 accel_pci_dev->pci_dev = pdev;
148
149
150 if (adf_devmgr_add_dev(accel_dev, pf)) {
151 dev_err(&pdev->dev, "Failed to add new accelerator device.\n");
152 kfree(accel_dev);
153 return -EFAULT;
154 }
155 INIT_LIST_HEAD(&accel_dev->crypto_list);
156
157 accel_dev->owner = THIS_MODULE;
158
159 hw_data = kzalloc_node(sizeof(*hw_data), GFP_KERNEL,
160 dev_to_node(&pdev->dev));
161 if (!hw_data) {
162 ret = -ENOMEM;
163 goto out_err;
164 }
165 accel_dev->hw_device = hw_data;
166 adf_init_hw_data_c3xxxiov(accel_dev->hw_device);
167
168
169 hw_data->accel_mask = hw_data->get_accel_mask(hw_data->fuses);
170 hw_data->ae_mask = hw_data->get_ae_mask(hw_data->fuses);
171 accel_pci_dev->sku = hw_data->get_sku(hw_data);
172
173
174 snprintf(name, sizeof(name), "%s%s_%02x:%02d.%d",
175 ADF_DEVICE_NAME_PREFIX, hw_data->dev_class->name,
176 pdev->bus->number, PCI_SLOT(pdev->devfn),
177 PCI_FUNC(pdev->devfn));
178
179 accel_dev->debugfs_dir = debugfs_create_dir(name, NULL);
180
181
182 ret = adf_cfg_dev_add(accel_dev);
183 if (ret)
184 goto out_err;
185
186
187 if (pci_enable_device(pdev)) {
188 ret = -EFAULT;
189 goto out_err;
190 }
191
192
193 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
194 if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))) {
195 dev_err(&pdev->dev, "No usable DMA configuration\n");
196 ret = -EFAULT;
197 goto out_err_disable;
198 } else {
199 pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
200 }
201
202 } else {
203 pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
204 }
205
206 if (pci_request_regions(pdev, ADF_C3XXXVF_DEVICE_NAME)) {
207 ret = -EFAULT;
208 goto out_err_disable;
209 }
210
211
212 i = 0;
213 bar_mask = pci_select_bars(pdev, IORESOURCE_MEM);
214 for_each_set_bit(bar_nr, &bar_mask, ADF_PCI_MAX_BARS * 2) {
215 struct adf_bar *bar = &accel_pci_dev->pci_bars[i++];
216
217 bar->base_addr = pci_resource_start(pdev, bar_nr);
218 if (!bar->base_addr)
219 break;
220 bar->size = pci_resource_len(pdev, bar_nr);
221 bar->virt_addr = pci_iomap(accel_pci_dev->pci_dev, bar_nr, 0);
222 if (!bar->virt_addr) {
223 dev_err(&pdev->dev, "Failed to map BAR %d\n", bar_nr);
224 ret = -EFAULT;
225 goto out_err_free_reg;
226 }
227 }
228 pci_set_master(pdev);
229
230 init_completion(&accel_dev->vf.iov_msg_completion);
231
232 ret = qat_crypto_dev_config(accel_dev);
233 if (ret)
234 goto out_err_free_reg;
235
236 set_bit(ADF_STATUS_PF_RUNNING, &accel_dev->status);
237
238 ret = adf_dev_init(accel_dev);
239 if (ret)
240 goto out_err_dev_shutdown;
241
242 ret = adf_dev_start(accel_dev);
243 if (ret)
244 goto out_err_dev_stop;
245
246 return ret;
247
248out_err_dev_stop:
249 adf_dev_stop(accel_dev);
250out_err_dev_shutdown:
251 adf_dev_shutdown(accel_dev);
252out_err_free_reg:
253 pci_release_regions(accel_pci_dev->pci_dev);
254out_err_disable:
255 pci_disable_device(accel_pci_dev->pci_dev);
256out_err:
257 adf_cleanup_accel(accel_dev);
258 kfree(accel_dev);
259 return ret;
260}
261
262static void adf_remove(struct pci_dev *pdev)
263{
264 struct adf_accel_dev *accel_dev = adf_devmgr_pci_to_accel_dev(pdev);
265
266 if (!accel_dev) {
267 pr_err("QAT: Driver removal failed\n");
268 return;
269 }
270 adf_dev_stop(accel_dev);
271 adf_dev_shutdown(accel_dev);
272 adf_cleanup_accel(accel_dev);
273 adf_cleanup_pci_dev(accel_dev);
274 kfree(accel_dev);
275}
276
277static int __init adfdrv_init(void)
278{
279 request_module("intel_qat");
280
281 if (pci_register_driver(&adf_driver)) {
282 pr_err("QAT: Driver initialization failed\n");
283 return -EFAULT;
284 }
285 return 0;
286}
287
288static void __exit adfdrv_release(void)
289{
290 pci_unregister_driver(&adf_driver);
291 adf_clean_vf_map(true);
292}
293
294module_init(adfdrv_init);
295module_exit(adfdrv_release);
296
297MODULE_LICENSE("Dual BSD/GPL");
298MODULE_AUTHOR("Intel");
299MODULE_DESCRIPTION("Intel(R) QuickAssist Technology");
300MODULE_VERSION(ADF_DRV_VERSION);
301
