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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_c62xvf_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_C62XIOV_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_C62XVF_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_C62XIOV_PCI_DEVICE_ID:
106 adf_clean_hw_data_c62xiov(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 int ret, bar_mask;
129
130 switch (ent->device) {
131 case ADF_C62XIOV_PCI_DEVICE_ID:
132 break;
133 default:
134 dev_err(&pdev->dev, "Invalid device 0x%x.\n", ent->device);
135 return -ENODEV;
136 }
137
138 accel_dev = kzalloc_node(sizeof(*accel_dev), GFP_KERNEL,
139 dev_to_node(&pdev->dev));
140 if (!accel_dev)
141 return -ENOMEM;
142
143 accel_dev->is_vf = true;
144 pf = adf_devmgr_pci_to_accel_dev(pdev->physfn);
145 accel_pci_dev = &accel_dev->accel_pci_dev;
146 accel_pci_dev->pci_dev = pdev;
147
148
149 if (adf_devmgr_add_dev(accel_dev, pf)) {
150 dev_err(&pdev->dev, "Failed to add new accelerator device.\n");
151 kfree(accel_dev);
152 return -EFAULT;
153 }
154 INIT_LIST_HEAD(&accel_dev->crypto_list);
155
156 accel_dev->owner = THIS_MODULE;
157
158 hw_data = kzalloc_node(sizeof(*hw_data), GFP_KERNEL,
159 dev_to_node(&pdev->dev));
160 if (!hw_data) {
161 ret = -ENOMEM;
162 goto out_err;
163 }
164 accel_dev->hw_device = hw_data;
165 adf_init_hw_data_c62xiov(accel_dev->hw_device);
166
167
168 hw_data->accel_mask = hw_data->get_accel_mask(hw_data->fuses);
169 hw_data->ae_mask = hw_data->get_ae_mask(hw_data->fuses);
170 accel_pci_dev->sku = hw_data->get_sku(hw_data);
171
172
173 snprintf(name, sizeof(name), "%s%s_%02x:%02d.%02d",
174 ADF_DEVICE_NAME_PREFIX, hw_data->dev_class->name,
175 pdev->bus->number, PCI_SLOT(pdev->devfn),
176 PCI_FUNC(pdev->devfn));
177
178 accel_dev->debugfs_dir = debugfs_create_dir(name, NULL);
179 if (!accel_dev->debugfs_dir) {
180 dev_err(&pdev->dev, "Could not create debugfs dir %s\n", name);
181 ret = -EINVAL;
182 goto out_err;
183 }
184
185
186 ret = adf_cfg_dev_add(accel_dev);
187 if (ret)
188 goto out_err;
189
190
191 if (pci_enable_device(pdev)) {
192 ret = -EFAULT;
193 goto out_err;
194 }
195
196
197 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
198 if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))) {
199 dev_err(&pdev->dev, "No usable DMA configuration\n");
200 ret = -EFAULT;
201 goto out_err_disable;
202 } else {
203 pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
204 }
205
206 } else {
207 pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
208 }
209
210 if (pci_request_regions(pdev, ADF_C62XVF_DEVICE_NAME)) {
211 ret = -EFAULT;
212 goto out_err_disable;
213 }
214
215
216 i = 0;
217 bar_mask = pci_select_bars(pdev, IORESOURCE_MEM);
218 for_each_set_bit(bar_nr, (const unsigned long *)&bar_mask,
219 ADF_PCI_MAX_BARS * 2) {
220 struct adf_bar *bar = &accel_pci_dev->pci_bars[i++];
221
222 bar->base_addr = pci_resource_start(pdev, bar_nr);
223 if (!bar->base_addr)
224 break;
225 bar->size = pci_resource_len(pdev, bar_nr);
226 bar->virt_addr = pci_iomap(accel_pci_dev->pci_dev, bar_nr, 0);
227 if (!bar->virt_addr) {
228 dev_err(&pdev->dev, "Failed to map BAR %d\n", bar_nr);
229 ret = -EFAULT;
230 goto out_err_free_reg;
231 }
232 }
233 pci_set_master(pdev);
234
235 init_completion(&accel_dev->vf.iov_msg_completion);
236
237 ret = qat_crypto_dev_config(accel_dev);
238 if (ret)
239 goto out_err_free_reg;
240
241 ret = adf_dev_init(accel_dev);
242 if (ret)
243 goto out_err_dev_shutdown;
244
245 ret = adf_dev_start(accel_dev);
246 if (ret)
247 goto out_err_dev_stop;
248
249 return ret;
250
251out_err_dev_stop:
252 adf_dev_stop(accel_dev);
253out_err_dev_shutdown:
254 adf_dev_shutdown(accel_dev);
255out_err_free_reg:
256 pci_release_regions(accel_pci_dev->pci_dev);
257out_err_disable:
258 pci_disable_device(accel_pci_dev->pci_dev);
259out_err:
260 adf_cleanup_accel(accel_dev);
261 kfree(accel_dev);
262 return ret;
263}
264
265static void adf_remove(struct pci_dev *pdev)
266{
267 struct adf_accel_dev *accel_dev = adf_devmgr_pci_to_accel_dev(pdev);
268
269 if (!accel_dev) {
270 pr_err("QAT: Driver removal failed\n");
271 return;
272 }
273 if (adf_dev_stop(accel_dev))
274 dev_err(&GET_DEV(accel_dev), "Failed to stop QAT accel dev\n");
275
276 adf_dev_shutdown(accel_dev);
277 adf_cleanup_accel(accel_dev);
278 adf_cleanup_pci_dev(accel_dev);
279 kfree(accel_dev);
280}
281
282static int __init adfdrv_init(void)
283{
284 request_module("intel_qat");
285
286 if (pci_register_driver(&adf_driver)) {
287 pr_err("QAT: Driver initialization failed\n");
288 return -EFAULT;
289 }
290 return 0;
291}
292
293static void __exit adfdrv_release(void)
294{
295 pci_unregister_driver(&adf_driver);
296 adf_clean_vf_map(true);
297}
298
299module_init(adfdrv_init);
300module_exit(adfdrv_release);
301
302MODULE_LICENSE("Dual BSD/GPL");
303MODULE_AUTHOR("Intel");
304MODULE_DESCRIPTION("Intel(R) QuickAssist Technology");
305MODULE_VERSION(ADF_DRV_VERSION);
306
