1
2
3#include <linux/device.h>
4#include <linux/module.h>
5#include <linux/pci.h>
6
7#include <adf_accel_devices.h>
8#include <adf_cfg.h>
9#include <adf_common_drv.h>
10
11#include "adf_4xxx_hw_data.h"
12#include "qat_crypto.h"
13#include "adf_transport_access_macros.h"
14
15static const struct pci_device_id adf_pci_tbl[] = {
16 { PCI_VDEVICE(INTEL, ADF_4XXX_PCI_DEVICE_ID), },
17 { }
18};
19MODULE_DEVICE_TABLE(pci, adf_pci_tbl);
20
21static void adf_cleanup_accel(struct adf_accel_dev *accel_dev)
22{
23 if (accel_dev->hw_device) {
24 adf_clean_hw_data_4xxx(accel_dev->hw_device);
25 accel_dev->hw_device = NULL;
26 }
27 adf_cfg_dev_remove(accel_dev);
28 debugfs_remove(accel_dev->debugfs_dir);
29 adf_devmgr_rm_dev(accel_dev, NULL);
30}
31
32static int adf_crypto_dev_config(struct adf_accel_dev *accel_dev)
33{
34 char key[ADF_CFG_MAX_KEY_LEN_IN_BYTES];
35 int banks = GET_MAX_BANKS(accel_dev);
36 int cpus = num_online_cpus();
37 unsigned long bank, val;
38 int instances;
39 int ret;
40 int i;
41
42 if (adf_hw_dev_has_crypto(accel_dev))
43 instances = min(cpus, banks / 2);
44 else
45 instances = 0;
46
47 ret = adf_cfg_section_add(accel_dev, ADF_KERNEL_SEC);
48 if (ret)
49 goto err;
50
51 ret = adf_cfg_section_add(accel_dev, "Accelerator0");
52 if (ret)
53 goto err;
54
55 for (i = 0; i < instances; i++) {
56 val = i;
57 bank = i * 2;
58 snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_BANK_NUM, i);
59 ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
60 key, &bank, ADF_DEC);
61 if (ret)
62 goto err;
63
64 bank += 1;
65 snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_BANK_NUM, i);
66 ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
67 key, &bank, ADF_DEC);
68 if (ret)
69 goto err;
70
71 snprintf(key, sizeof(key), ADF_CY "%d" ADF_ETRMGR_CORE_AFFINITY,
72 i);
73 ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
74 key, &val, ADF_DEC);
75 if (ret)
76 goto err;
77
78 snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_SIZE, i);
79 val = 128;
80 ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
81 key, &val, ADF_DEC);
82 if (ret)
83 goto err;
84
85 val = 512;
86 snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_SIZE, i);
87 ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
88 key, &val, ADF_DEC);
89 if (ret)
90 goto err;
91
92 val = 0;
93 snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_TX, i);
94 ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
95 key, &val, ADF_DEC);
96 if (ret)
97 goto err;
98
99 val = 0;
100 snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_TX, i);
101 ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
102 key, &val, ADF_DEC);
103 if (ret)
104 goto err;
105
106 val = 1;
107 snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_RX, i);
108 ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
109 key, &val, ADF_DEC);
110 if (ret)
111 goto err;
112
113 val = 1;
114 snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_RX, i);
115 ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
116 key, &val, ADF_DEC);
117 if (ret)
118 goto err;
119
120 val = ADF_COALESCING_DEF_TIME;
121 snprintf(key, sizeof(key), ADF_ETRMGR_COALESCE_TIMER_FORMAT, i);
122 ret = adf_cfg_add_key_value_param(accel_dev, "Accelerator0",
123 key, &val, ADF_DEC);
124 if (ret)
125 goto err;
126 }
127
128 val = i;
129 ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC, ADF_NUM_CY,
130 &val, ADF_DEC);
131 if (ret)
132 goto err;
133
134 set_bit(ADF_STATUS_CONFIGURED, &accel_dev->status);
135 return 0;
136err:
137 dev_err(&GET_DEV(accel_dev), "Failed to start QAT accel dev\n");
138 return ret;
139}
140
141static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
142{
143 struct adf_accel_dev *accel_dev;
144 struct adf_accel_pci *accel_pci_dev;
145 struct adf_hw_device_data *hw_data;
146 char name[ADF_DEVICE_NAME_LENGTH];
147 unsigned int i, bar_nr;
148 unsigned long bar_mask;
149 struct adf_bar *bar;
150 int ret;
151
152 if (num_possible_nodes() > 1 && dev_to_node(&pdev->dev) < 0) {
153
154
155
156
157
158 dev_err(&pdev->dev, "Invalid NUMA configuration.\n");
159 return -EINVAL;
160 }
161
162 accel_dev = devm_kzalloc(&pdev->dev, sizeof(*accel_dev), GFP_KERNEL);
163 if (!accel_dev)
164 return -ENOMEM;
165
166 INIT_LIST_HEAD(&accel_dev->crypto_list);
167 accel_pci_dev = &accel_dev->accel_pci_dev;
168 accel_pci_dev->pci_dev = pdev;
169
170
171
172
173
174 if (adf_devmgr_add_dev(accel_dev, NULL)) {
175 dev_err(&pdev->dev, "Failed to add new accelerator device.\n");
176 return -EFAULT;
177 }
178
179 accel_dev->owner = THIS_MODULE;
180
181 hw_data = devm_kzalloc(&pdev->dev, sizeof(*hw_data), GFP_KERNEL);
182 if (!hw_data) {
183 ret = -ENOMEM;
184 goto out_err;
185 }
186
187 accel_dev->hw_device = hw_data;
188 adf_init_hw_data_4xxx(accel_dev->hw_device);
189
190 pci_read_config_byte(pdev, PCI_REVISION_ID, &accel_pci_dev->revid);
191 pci_read_config_dword(pdev, ADF_4XXX_FUSECTL4_OFFSET, &hw_data->fuses);
192
193
194 hw_data->accel_mask = hw_data->get_accel_mask(hw_data);
195 hw_data->ae_mask = hw_data->get_ae_mask(hw_data);
196 accel_pci_dev->sku = hw_data->get_sku(hw_data);
197
198 if (!hw_data->accel_mask || !hw_data->ae_mask ||
199 (~hw_data->ae_mask & 0x01)) {
200 dev_err(&pdev->dev, "No acceleration units found.\n");
201 ret = -EFAULT;
202 goto out_err;
203 }
204
205
206 snprintf(name, sizeof(name), "%s%s_%s", ADF_DEVICE_NAME_PREFIX,
207 hw_data->dev_class->name, pci_name(pdev));
208
209 accel_dev->debugfs_dir = debugfs_create_dir(name, NULL);
210
211
212 ret = adf_cfg_dev_add(accel_dev);
213 if (ret)
214 goto out_err;
215
216
217 ret = pcim_enable_device(pdev);
218 if (ret) {
219 dev_err(&pdev->dev, "Can't enable PCI device.\n");
220 goto out_err;
221 }
222
223
224 ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
225 if (ret) {
226 dev_err(&pdev->dev, "No usable DMA configuration.\n");
227 goto out_err;
228 }
229
230
231 hw_data->accel_capabilities_mask = hw_data->get_accel_cap(accel_dev);
232
233
234 bar_mask = pci_select_bars(pdev, IORESOURCE_MEM) & ADF_4XXX_BAR_MASK;
235
236 ret = pcim_iomap_regions_request_all(pdev, bar_mask, pci_name(pdev));
237 if (ret) {
238 dev_err(&pdev->dev, "Failed to map pci regions.\n");
239 goto out_err;
240 }
241
242 i = 0;
243 for_each_set_bit(bar_nr, &bar_mask, PCI_STD_NUM_BARS) {
244 bar = &accel_pci_dev->pci_bars[i++];
245 bar->virt_addr = pcim_iomap_table(pdev)[bar_nr];
246 }
247
248 pci_set_master(pdev);
249
250 if (adf_enable_aer(accel_dev)) {
251 dev_err(&pdev->dev, "Failed to enable aer.\n");
252 ret = -EFAULT;
253 goto out_err;
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_disable_aer;
260 }
261
262 ret = adf_crypto_dev_config(accel_dev);
263 if (ret)
264 goto out_err_disable_aer;
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_disable_aer:
281 adf_disable_aer(accel_dev);
282out_err:
283 adf_cleanup_accel(accel_dev);
284 return ret;
285}
286
287static void adf_remove(struct pci_dev *pdev)
288{
289 struct adf_accel_dev *accel_dev = adf_devmgr_pci_to_accel_dev(pdev);
290
291 if (!accel_dev) {
292 pr_err("QAT: Driver removal failed\n");
293 return;
294 }
295 adf_dev_stop(accel_dev);
296 adf_dev_shutdown(accel_dev);
297 adf_disable_aer(accel_dev);
298 adf_cleanup_accel(accel_dev);
299}
300
301static struct pci_driver adf_driver = {
302 .id_table = adf_pci_tbl,
303 .name = ADF_4XXX_DEVICE_NAME,
304 .probe = adf_probe,
305 .remove = adf_remove,
306 .sriov_configure = adf_sriov_configure,
307};
308
309module_pci_driver(adf_driver);
310
311MODULE_LICENSE("Dual BSD/GPL");
312MODULE_AUTHOR("Intel");
313MODULE_FIRMWARE(ADF_4XXX_FW);
314MODULE_FIRMWARE(ADF_4XXX_MMP);
315MODULE_DESCRIPTION("Intel(R) QuickAssist Technology");
316MODULE_VERSION(ADF_DRV_VERSION);
317MODULE_SOFTDEP("pre: crypto-intel_qat");
318
