1
2
3#include <linux/kernel.h>
4#include <linux/module.h>
5#include <linux/pci.h>
6#include <linux/init.h>
7#include <linux/types.h>
8#include <linux/fs.h>
9#include <linux/slab.h>
10#include <linux/errno.h>
11#include <linux/device.h>
12#include <linux/dma-mapping.h>
13#include <linux/platform_device.h>
14#include <linux/workqueue.h>
15#include <linux/io.h>
16#include <adf_accel_devices.h>
17#include <adf_common_drv.h>
18#include <adf_cfg.h>
19#include "adf_dh895xcc_hw_data.h"
20
21#define ADF_SYSTEM_DEVICE(device_id) \
22 {PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)}
23
24static const struct pci_device_id adf_pci_tbl[] = {
25 ADF_SYSTEM_DEVICE(ADF_DH895XCC_PCI_DEVICE_ID),
26 {0,}
27};
28MODULE_DEVICE_TABLE(pci, adf_pci_tbl);
29
30static int adf_probe(struct pci_dev *dev, const struct pci_device_id *ent);
31static void adf_remove(struct pci_dev *dev);
32
33static struct pci_driver adf_driver = {
34 .id_table = adf_pci_tbl,
35 .name = ADF_DH895XCC_DEVICE_NAME,
36 .probe = adf_probe,
37 .remove = adf_remove,
38 .sriov_configure = adf_sriov_configure,
39};
40
41static void adf_cleanup_pci_dev(struct adf_accel_dev *accel_dev)
42{
43 pci_release_regions(accel_dev->accel_pci_dev.pci_dev);
44 pci_disable_device(accel_dev->accel_pci_dev.pci_dev);
45}
46
47static void adf_cleanup_accel(struct adf_accel_dev *accel_dev)
48{
49 struct adf_accel_pci *accel_pci_dev = &accel_dev->accel_pci_dev;
50 int i;
51
52 for (i = 0; i < ADF_PCI_MAX_BARS; i++) {
53 struct adf_bar *bar = &accel_pci_dev->pci_bars[i];
54
55 if (bar->virt_addr)
56 pci_iounmap(accel_pci_dev->pci_dev, bar->virt_addr);
57 }
58
59 if (accel_dev->hw_device) {
60 switch (accel_pci_dev->pci_dev->device) {
61 case ADF_DH895XCC_PCI_DEVICE_ID:
62 adf_clean_hw_data_dh895xcc(accel_dev->hw_device);
63 break;
64 default:
65 break;
66 }
67 kfree(accel_dev->hw_device);
68 accel_dev->hw_device = NULL;
69 }
70 adf_cfg_dev_remove(accel_dev);
71 debugfs_remove(accel_dev->debugfs_dir);
72 adf_devmgr_rm_dev(accel_dev, NULL);
73}
74
75static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
76{
77 struct adf_accel_dev *accel_dev;
78 struct adf_accel_pci *accel_pci_dev;
79 struct adf_hw_device_data *hw_data;
80 char name[ADF_DEVICE_NAME_LENGTH];
81 unsigned int i, bar_nr;
82 unsigned long bar_mask;
83 int ret;
84
85 switch (ent->device) {
86 case ADF_DH895XCC_PCI_DEVICE_ID:
87 break;
88 default:
89 dev_err(&pdev->dev, "Invalid device 0x%x.\n", ent->device);
90 return -ENODEV;
91 }
92
93 if (num_possible_nodes() > 1 && dev_to_node(&pdev->dev) < 0) {
94
95
96
97 dev_err(&pdev->dev, "Invalid NUMA configuration.\n");
98 return -EINVAL;
99 }
100
101 accel_dev = kzalloc_node(sizeof(*accel_dev), GFP_KERNEL,
102 dev_to_node(&pdev->dev));
103 if (!accel_dev)
104 return -ENOMEM;
105
106 INIT_LIST_HEAD(&accel_dev->crypto_list);
107 accel_pci_dev = &accel_dev->accel_pci_dev;
108 accel_pci_dev->pci_dev = pdev;
109
110
111
112 if (adf_devmgr_add_dev(accel_dev, NULL)) {
113 dev_err(&pdev->dev, "Failed to add new accelerator device.\n");
114 kfree(accel_dev);
115 return -EFAULT;
116 }
117
118 accel_dev->owner = THIS_MODULE;
119
120 hw_data = kzalloc_node(sizeof(*hw_data), GFP_KERNEL,
121 dev_to_node(&pdev->dev));
122 if (!hw_data) {
123 ret = -ENOMEM;
124 goto out_err;
125 }
126
127 accel_dev->hw_device = hw_data;
128 adf_init_hw_data_dh895xcc(accel_dev->hw_device);
129 pci_read_config_byte(pdev, PCI_REVISION_ID, &accel_pci_dev->revid);
130 pci_read_config_dword(pdev, ADF_DEVICE_FUSECTL_OFFSET,
131 &hw_data->fuses);
132
133
134 hw_data->accel_mask = hw_data->get_accel_mask(hw_data->fuses);
135 hw_data->ae_mask = hw_data->get_ae_mask(hw_data->fuses);
136 accel_pci_dev->sku = hw_data->get_sku(hw_data);
137
138 if (!hw_data->accel_mask || !hw_data->ae_mask ||
139 ((~hw_data->ae_mask) & 0x01)) {
140 dev_err(&pdev->dev, "No acceleration units found");
141 ret = -EFAULT;
142 goto out_err;
143 }
144
145
146 snprintf(name, sizeof(name), "%s%s_%02x:%02d.%d",
147 ADF_DEVICE_NAME_PREFIX, hw_data->dev_class->name,
148 pdev->bus->number, PCI_SLOT(pdev->devfn),
149 PCI_FUNC(pdev->devfn));
150
151 accel_dev->debugfs_dir = debugfs_create_dir(name, NULL);
152
153
154 ret = adf_cfg_dev_add(accel_dev);
155 if (ret)
156 goto out_err;
157
158 pcie_set_readrq(pdev, 1024);
159
160
161 if (pci_enable_device(pdev)) {
162 ret = -EFAULT;
163 goto out_err;
164 }
165
166
167 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
168 if ((pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))) {
169 dev_err(&pdev->dev, "No usable DMA configuration\n");
170 ret = -EFAULT;
171 goto out_err_disable;
172 } else {
173 pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
174 }
175
176 } else {
177 pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
178 }
179
180 if (pci_request_regions(pdev, ADF_DH895XCC_DEVICE_NAME)) {
181 ret = -EFAULT;
182 goto out_err_disable;
183 }
184
185
186 pci_read_config_dword(pdev, ADF_DEVICE_LEGFUSE_OFFSET,
187 &hw_data->accel_capabilities_mask);
188
189
190 i = 0;
191 bar_mask = pci_select_bars(pdev, IORESOURCE_MEM);
192 for_each_set_bit(bar_nr, &bar_mask, ADF_PCI_MAX_BARS * 2) {
193 struct adf_bar *bar = &accel_pci_dev->pci_bars[i++];
194
195 bar->base_addr = pci_resource_start(pdev, bar_nr);
196 if (!bar->base_addr)
197 break;
198 bar->size = pci_resource_len(pdev, bar_nr);
199 bar->virt_addr = pci_iomap(accel_pci_dev->pci_dev, bar_nr, 0);
200 if (!bar->virt_addr) {
201 dev_err(&pdev->dev, "Failed to map BAR %d\n", bar_nr);
202 ret = -EFAULT;
203 goto out_err_free_reg;
204 }
205 }
206 pci_set_master(pdev);
207
208 if (adf_enable_aer(accel_dev, &adf_driver)) {
209 dev_err(&pdev->dev, "Failed to enable aer\n");
210 ret = -EFAULT;
211 goto out_err_free_reg;
212 }
213
214 if (pci_save_state(pdev)) {
215 dev_err(&pdev->dev, "Failed to save pci state\n");
216 ret = -ENOMEM;
217 goto out_err_free_reg;
218 }
219
220 ret = qat_crypto_dev_config(accel_dev);
221 if (ret)
222 goto out_err_free_reg;
223
224 ret = adf_dev_init(accel_dev);
225 if (ret)
226 goto out_err_dev_shutdown;
227
228 ret = adf_dev_start(accel_dev);
229 if (ret)
230 goto out_err_dev_stop;
231
232 return ret;
233
234out_err_dev_stop:
235 adf_dev_stop(accel_dev);
236out_err_dev_shutdown:
237 adf_dev_shutdown(accel_dev);
238out_err_free_reg:
239 pci_release_regions(accel_pci_dev->pci_dev);
240out_err_disable:
241 pci_disable_device(accel_pci_dev->pci_dev);
242out_err:
243 adf_cleanup_accel(accel_dev);
244 kfree(accel_dev);
245 return ret;
246}
247
248static void adf_remove(struct pci_dev *pdev)
249{
250 struct adf_accel_dev *accel_dev = adf_devmgr_pci_to_accel_dev(pdev);
251
252 if (!accel_dev) {
253 pr_err("QAT: Driver removal failed\n");
254 return;
255 }
256 adf_dev_stop(accel_dev);
257 adf_dev_shutdown(accel_dev);
258 adf_disable_aer(accel_dev);
259 adf_cleanup_accel(accel_dev);
260 adf_cleanup_pci_dev(accel_dev);
261 kfree(accel_dev);
262}
263
264static int __init adfdrv_init(void)
265{
266 request_module("intel_qat");
267
268 if (pci_register_driver(&adf_driver)) {
269 pr_err("QAT: Driver initialization failed\n");
270 return -EFAULT;
271 }
272 return 0;
273}
274
275static void __exit adfdrv_release(void)
276{
277 pci_unregister_driver(&adf_driver);
278}
279
280module_init(adfdrv_init);
281module_exit(adfdrv_release);
282
283MODULE_LICENSE("Dual BSD/GPL");
284MODULE_AUTHOR("Intel");
285MODULE_FIRMWARE(ADF_DH895XCC_FW);
286MODULE_FIRMWARE(ADF_DH895XCC_MMP);
287MODULE_DESCRIPTION("Intel(R) QuickAssist Technology");
288MODULE_VERSION(ADF_DRV_VERSION);
289
