1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
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_c62x_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_C62X_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_C62X_DEVICE_NAME,
80 .probe = adf_probe,
81 .remove = adf_remove,
82 .sriov_configure = adf_sriov_configure,
83};
84
85static void adf_cleanup_pci_dev(struct adf_accel_dev *accel_dev)
86{
87 pci_release_regions(accel_dev->accel_pci_dev.pci_dev);
88 pci_disable_device(accel_dev->accel_pci_dev.pci_dev);
89}
90
91static void adf_cleanup_accel(struct adf_accel_dev *accel_dev)
92{
93 struct adf_accel_pci *accel_pci_dev = &accel_dev->accel_pci_dev;
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_C62X_PCI_DEVICE_ID:
106 adf_clean_hw_data_c62x(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 adf_devmgr_rm_dev(accel_dev, NULL);
117}
118
119static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
120{
121 struct adf_accel_dev *accel_dev;
122 struct adf_accel_pci *accel_pci_dev;
123 struct adf_hw_device_data *hw_data;
124 char name[ADF_DEVICE_NAME_LENGTH];
125 unsigned int i, bar_nr;
126 unsigned long bar_mask;
127 int ret;
128
129 switch (ent->device) {
130 case ADF_C62X_PCI_DEVICE_ID:
131 break;
132 default:
133 dev_err(&pdev->dev, "Invalid device 0x%x.\n", ent->device);
134 return -ENODEV;
135 }
136
137 if (num_possible_nodes() > 1 && dev_to_node(&pdev->dev) < 0) {
138
139
140
141 dev_err(&pdev->dev, "Invalid NUMA configuration.\n");
142 return -EINVAL;
143 }
144
145 accel_dev = kzalloc_node(sizeof(*accel_dev), GFP_KERNEL,
146 dev_to_node(&pdev->dev));
147 if (!accel_dev)
148 return -ENOMEM;
149
150 INIT_LIST_HEAD(&accel_dev->crypto_list);
151 accel_pci_dev = &accel_dev->accel_pci_dev;
152 accel_pci_dev->pci_dev = pdev;
153
154
155
156 if (adf_devmgr_add_dev(accel_dev, NULL)) {
157 dev_err(&pdev->dev, "Failed to add new accelerator device.\n");
158 kfree(accel_dev);
159 return -EFAULT;
160 }
161
162 accel_dev->owner = THIS_MODULE;
163
164 hw_data = kzalloc_node(sizeof(*hw_data), GFP_KERNEL,
165 dev_to_node(&pdev->dev));
166 if (!hw_data) {
167 ret = -ENOMEM;
168 goto out_err;
169 }
170
171 accel_dev->hw_device = hw_data;
172 adf_init_hw_data_c62x(accel_dev->hw_device);
173 pci_read_config_byte(pdev, PCI_REVISION_ID, &accel_pci_dev->revid);
174 pci_read_config_dword(pdev, ADF_DEVICE_FUSECTL_OFFSET,
175 &hw_data->fuses);
176
177
178 hw_data->accel_mask = hw_data->get_accel_mask(hw_data->fuses);
179 hw_data->ae_mask = hw_data->get_ae_mask(hw_data->fuses);
180 accel_pci_dev->sku = hw_data->get_sku(hw_data);
181
182 if (!hw_data->accel_mask || !hw_data->ae_mask ||
183 ((~hw_data->ae_mask) & 0x01)) {
184 dev_err(&pdev->dev, "No acceleration units found");
185 ret = -EFAULT;
186 goto out_err;
187 }
188
189
190 snprintf(name, sizeof(name), "%s%s_%02x:%02d.%d",
191 ADF_DEVICE_NAME_PREFIX, hw_data->dev_class->name,
192 pdev->bus->number, PCI_SLOT(pdev->devfn),
193 PCI_FUNC(pdev->devfn));
194
195 accel_dev->debugfs_dir = debugfs_create_dir(name, NULL);
196
197
198 ret = adf_cfg_dev_add(accel_dev);
199 if (ret)
200 goto out_err;
201
202
203 if (pci_enable_device(pdev)) {
204 ret = -EFAULT;
205 goto out_err;
206 }
207
208
209 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
210 if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))) {
211 dev_err(&pdev->dev, "No usable DMA configuration\n");
212 ret = -EFAULT;
213 goto out_err_disable;
214 } else {
215 pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
216 }
217
218 } else {
219 pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
220 }
221
222 if (pci_request_regions(pdev, ADF_C62X_DEVICE_NAME)) {
223 ret = -EFAULT;
224 goto out_err_disable;
225 }
226
227
228 pci_read_config_dword(pdev, ADF_DEVICE_LEGFUSE_OFFSET,
229 &hw_data->accel_capabilities_mask);
230
231
232 i = (hw_data->fuses & ADF_DEVICE_FUSECTL_MASK) ? 1 : 0;
233 bar_mask = pci_select_bars(pdev, IORESOURCE_MEM);
234 for_each_set_bit(bar_nr, &bar_mask, ADF_PCI_MAX_BARS * 2) {
235 struct adf_bar *bar = &accel_pci_dev->pci_bars[i++];
236
237 bar->base_addr = pci_resource_start(pdev, bar_nr);
238 if (!bar->base_addr)
239 break;
240 bar->size = pci_resource_len(pdev, bar_nr);
241 bar->virt_addr = pci_iomap(accel_pci_dev->pci_dev, bar_nr, 0);
242 if (!bar->virt_addr) {
243 dev_err(&pdev->dev, "Failed to map BAR %d\n", bar_nr);
244 ret = -EFAULT;
245 goto out_err_free_reg;
246 }
247 }
248 pci_set_master(pdev);
249
250 if (adf_enable_aer(accel_dev, &adf_driver)) {
251 dev_err(&pdev->dev, "Failed to enable aer\n");
252 ret = -EFAULT;
253 goto out_err_free_reg;
254 }
255
256 if (pci_save_state(pdev)) {
257 dev_err(&pdev->dev, "Failed to save pci state\n");
258 ret = -ENOMEM;
259 goto out_err_free_reg;
260 }
261
262 ret = qat_crypto_dev_config(accel_dev);
263 if (ret)
264 goto out_err_free_reg;
265
266 ret = adf_dev_init(accel_dev);
267 if (ret)
268 goto out_err_dev_shutdown;
269
270 ret = adf_dev_start(accel_dev);
271 if (ret)
272 goto out_err_dev_stop;
273
274 return ret;
275
276out_err_dev_stop:
277 adf_dev_stop(accel_dev);
278out_err_dev_shutdown:
279 adf_dev_shutdown(accel_dev);
280out_err_free_reg:
281 pci_release_regions(accel_pci_dev->pci_dev);
282out_err_disable:
283 pci_disable_device(accel_pci_dev->pci_dev);
284out_err:
285 adf_cleanup_accel(accel_dev);
286 kfree(accel_dev);
287 return ret;
288}
289
290static void adf_remove(struct pci_dev *pdev)
291{
292 struct adf_accel_dev *accel_dev = adf_devmgr_pci_to_accel_dev(pdev);
293
294 if (!accel_dev) {
295 pr_err("QAT: Driver removal failed\n");
296 return;
297 }
298 adf_dev_stop(accel_dev);
299 adf_dev_shutdown(accel_dev);
300 adf_disable_aer(accel_dev);
301 adf_cleanup_accel(accel_dev);
302 adf_cleanup_pci_dev(accel_dev);
303 kfree(accel_dev);
304}
305
306static int __init adfdrv_init(void)
307{
308 request_module("intel_qat");
309
310 if (pci_register_driver(&adf_driver)) {
311 pr_err("QAT: Driver initialization failed\n");
312 return -EFAULT;
313 }
314 return 0;
315}
316
317static void __exit adfdrv_release(void)
318{
319 pci_unregister_driver(&adf_driver);
320}
321
322module_init(adfdrv_init);
323module_exit(adfdrv_release);
324
325MODULE_LICENSE("Dual BSD/GPL");
326MODULE_AUTHOR("Intel");
327MODULE_FIRMWARE(ADF_C62X_FW);
328MODULE_FIRMWARE(ADF_C62X_MMP);
329MODULE_DESCRIPTION("Intel(R) QuickAssist Technology");
330MODULE_VERSION(ADF_DRV_VERSION);
331
