1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2019 Intel Corporation
3 */
4
5 #include <rte_cryptodev_pmd.h>
6
7 #include "qat_logs.h"
8
9 #include "qat_asym.h"
10 #include "qat_asym_pmd.h"
11 #include "qat_sym_capabilities.h"
12 #include "qat_asym_capabilities.h"
13
14 uint8_t qat_asym_driver_id;
15
16 static const struct rte_cryptodev_capabilities qat_gen1_asym_capabilities[] = {
17 QAT_BASE_GEN1_ASYM_CAPABILITIES,
18 RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
19 };
20
21 static int qat_asym_qp_release(struct rte_cryptodev *dev,
22 uint16_t queue_pair_id);
23
qat_asym_dev_config(__rte_unused struct rte_cryptodev * dev,__rte_unused struct rte_cryptodev_config * config)24 static int qat_asym_dev_config(__rte_unused struct rte_cryptodev *dev,
25 __rte_unused struct rte_cryptodev_config *config)
26 {
27 return 0;
28 }
29
qat_asym_dev_start(__rte_unused struct rte_cryptodev * dev)30 static int qat_asym_dev_start(__rte_unused struct rte_cryptodev *dev)
31 {
32 return 0;
33 }
34
qat_asym_dev_stop(__rte_unused struct rte_cryptodev * dev)35 static void qat_asym_dev_stop(__rte_unused struct rte_cryptodev *dev)
36 {
37
38 }
39
qat_asym_dev_close(struct rte_cryptodev * dev)40 static int qat_asym_dev_close(struct rte_cryptodev *dev)
41 {
42 int i, ret;
43
44 for (i = 0; i < dev->data->nb_queue_pairs; i++) {
45 ret = qat_asym_qp_release(dev, i);
46 if (ret < 0)
47 return ret;
48 }
49
50 return 0;
51 }
52
qat_asym_dev_info_get(struct rte_cryptodev * dev,struct rte_cryptodev_info * info)53 static void qat_asym_dev_info_get(struct rte_cryptodev *dev,
54 struct rte_cryptodev_info *info)
55 {
56 struct qat_asym_dev_private *internals = dev->data->dev_private;
57 const struct qat_qp_hw_data *asym_hw_qps =
58 qat_gen_config[internals->qat_dev->qat_dev_gen]
59 .qp_hw_data[QAT_SERVICE_ASYMMETRIC];
60
61 if (info != NULL) {
62 info->max_nb_queue_pairs = qat_qps_per_service(asym_hw_qps,
63 QAT_SERVICE_ASYMMETRIC);
64 info->feature_flags = dev->feature_flags;
65 info->capabilities = internals->qat_dev_capabilities;
66 info->driver_id = qat_asym_driver_id;
67 /* No limit of number of sessions */
68 info->sym.max_nb_sessions = 0;
69 }
70 }
71
qat_asym_stats_get(struct rte_cryptodev * dev,struct rte_cryptodev_stats * stats)72 static void qat_asym_stats_get(struct rte_cryptodev *dev,
73 struct rte_cryptodev_stats *stats)
74 {
75 struct qat_common_stats qat_stats = {0};
76 struct qat_asym_dev_private *qat_priv;
77
78 if (stats == NULL || dev == NULL) {
79 QAT_LOG(ERR, "invalid ptr: stats %p, dev %p", stats, dev);
80 return;
81 }
82 qat_priv = dev->data->dev_private;
83
84 qat_stats_get(qat_priv->qat_dev, &qat_stats, QAT_SERVICE_ASYMMETRIC);
85 stats->enqueued_count = qat_stats.enqueued_count;
86 stats->dequeued_count = qat_stats.dequeued_count;
87 stats->enqueue_err_count = qat_stats.enqueue_err_count;
88 stats->dequeue_err_count = qat_stats.dequeue_err_count;
89 }
90
qat_asym_stats_reset(struct rte_cryptodev * dev)91 static void qat_asym_stats_reset(struct rte_cryptodev *dev)
92 {
93 struct qat_asym_dev_private *qat_priv;
94
95 if (dev == NULL) {
96 QAT_LOG(ERR, "invalid asymmetric cryptodev ptr %p", dev);
97 return;
98 }
99 qat_priv = dev->data->dev_private;
100
101 qat_stats_reset(qat_priv->qat_dev, QAT_SERVICE_ASYMMETRIC);
102 }
103
qat_asym_qp_release(struct rte_cryptodev * dev,uint16_t queue_pair_id)104 static int qat_asym_qp_release(struct rte_cryptodev *dev,
105 uint16_t queue_pair_id)
106 {
107 struct qat_asym_dev_private *qat_private = dev->data->dev_private;
108
109 QAT_LOG(DEBUG, "Release asym qp %u on device %d",
110 queue_pair_id, dev->data->dev_id);
111
112 qat_private->qat_dev->qps_in_use[QAT_SERVICE_ASYMMETRIC][queue_pair_id]
113 = NULL;
114
115 return qat_qp_release((struct qat_qp **)
116 &(dev->data->queue_pairs[queue_pair_id]));
117 }
118
qat_asym_qp_setup(struct rte_cryptodev * dev,uint16_t qp_id,const struct rte_cryptodev_qp_conf * qp_conf,int socket_id)119 static int qat_asym_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id,
120 const struct rte_cryptodev_qp_conf *qp_conf,
121 int socket_id)
122 {
123 struct qat_qp_config qat_qp_conf;
124 struct qat_qp *qp;
125 int ret = 0;
126 uint32_t i;
127
128 struct qat_qp **qp_addr =
129 (struct qat_qp **)&(dev->data->queue_pairs[qp_id]);
130 struct qat_asym_dev_private *qat_private = dev->data->dev_private;
131 const struct qat_qp_hw_data *asym_hw_qps =
132 qat_gen_config[qat_private->qat_dev->qat_dev_gen]
133 .qp_hw_data[QAT_SERVICE_ASYMMETRIC];
134 const struct qat_qp_hw_data *qp_hw_data = asym_hw_qps + qp_id;
135
136 /* If qp is already in use free ring memory and qp metadata. */
137 if (*qp_addr != NULL) {
138 ret = qat_asym_qp_release(dev, qp_id);
139 if (ret < 0)
140 return ret;
141 }
142 if (qp_id >= qat_qps_per_service(asym_hw_qps, QAT_SERVICE_ASYMMETRIC)) {
143 QAT_LOG(ERR, "qp_id %u invalid for this device", qp_id);
144 return -EINVAL;
145 }
146
147 qat_qp_conf.hw = qp_hw_data;
148 qat_qp_conf.cookie_size = sizeof(struct qat_asym_op_cookie);
149 qat_qp_conf.nb_descriptors = qp_conf->nb_descriptors;
150 qat_qp_conf.socket_id = socket_id;
151 qat_qp_conf.service_str = "asym";
152
153 ret = qat_qp_setup(qat_private->qat_dev, qp_addr, qp_id, &qat_qp_conf);
154 if (ret != 0)
155 return ret;
156
157 /* store a link to the qp in the qat_pci_device */
158 qat_private->qat_dev->qps_in_use[QAT_SERVICE_ASYMMETRIC][qp_id]
159 = *qp_addr;
160
161 qp = (struct qat_qp *)*qp_addr;
162 qp->min_enq_burst_threshold = qat_private->min_enq_burst_threshold;
163
164 for (i = 0; i < qp->nb_descriptors; i++) {
165 int j;
166
167 struct qat_asym_op_cookie __rte_unused *cookie =
168 qp->op_cookies[i];
169 cookie->input_addr = rte_mempool_virt2iova(cookie) +
170 offsetof(struct qat_asym_op_cookie,
171 input_params_ptrs);
172
173 cookie->output_addr = rte_mempool_virt2iova(cookie) +
174 offsetof(struct qat_asym_op_cookie,
175 output_params_ptrs);
176
177 for (j = 0; j < 8; j++) {
178 cookie->input_params_ptrs[j] =
179 rte_mempool_virt2iova(cookie) +
180 offsetof(struct qat_asym_op_cookie,
181 input_array[j]);
182 cookie->output_params_ptrs[j] =
183 rte_mempool_virt2iova(cookie) +
184 offsetof(struct qat_asym_op_cookie,
185 output_array[j]);
186 }
187 }
188
189 return ret;
190 }
191
192 struct rte_cryptodev_ops crypto_qat_ops = {
193
194 /* Device related operations */
195 .dev_configure = qat_asym_dev_config,
196 .dev_start = qat_asym_dev_start,
197 .dev_stop = qat_asym_dev_stop,
198 .dev_close = qat_asym_dev_close,
199 .dev_infos_get = qat_asym_dev_info_get,
200
201 .stats_get = qat_asym_stats_get,
202 .stats_reset = qat_asym_stats_reset,
203 .queue_pair_setup = qat_asym_qp_setup,
204 .queue_pair_release = qat_asym_qp_release,
205
206 /* Crypto related operations */
207 .asym_session_get_size = qat_asym_session_get_private_size,
208 .asym_session_configure = qat_asym_session_configure,
209 .asym_session_clear = qat_asym_session_clear
210 };
211
qat_asym_pmd_enqueue_op_burst(void * qp,struct rte_crypto_op ** ops,uint16_t nb_ops)212 uint16_t qat_asym_pmd_enqueue_op_burst(void *qp, struct rte_crypto_op **ops,
213 uint16_t nb_ops)
214 {
215 return qat_enqueue_op_burst(qp, (void **)ops, nb_ops);
216 }
217
qat_asym_pmd_dequeue_op_burst(void * qp,struct rte_crypto_op ** ops,uint16_t nb_ops)218 uint16_t qat_asym_pmd_dequeue_op_burst(void *qp, struct rte_crypto_op **ops,
219 uint16_t nb_ops)
220 {
221 return qat_dequeue_op_burst(qp, (void **)ops, nb_ops);
222 }
223
224 /* An rte_driver is needed in the registration of both the device and the driver
225 * with cryptodev.
226 * The actual qat pci's rte_driver can't be used as its name represents
227 * the whole pci device with all services. Think of this as a holder for a name
228 * for the crypto part of the pci device.
229 */
230 static const char qat_asym_drv_name[] = RTE_STR(CRYPTODEV_NAME_QAT_ASYM_PMD);
231 static const struct rte_driver cryptodev_qat_asym_driver = {
232 .name = qat_asym_drv_name,
233 .alias = qat_asym_drv_name
234 };
235
236 int
qat_asym_dev_create(struct qat_pci_device * qat_pci_dev,struct qat_dev_cmd_param * qat_dev_cmd_param)237 qat_asym_dev_create(struct qat_pci_device *qat_pci_dev,
238 struct qat_dev_cmd_param *qat_dev_cmd_param)
239 {
240 int i = 0;
241 struct qat_device_info *qat_dev_instance =
242 &qat_pci_devs[qat_pci_dev->qat_dev_id];
243 struct rte_cryptodev_pmd_init_params init_params = {
244 .name = "",
245 .socket_id =
246 qat_dev_instance->pci_dev->device.numa_node,
247 .private_data_size = sizeof(struct qat_asym_dev_private)
248 };
249 char name[RTE_CRYPTODEV_NAME_MAX_LEN];
250 char capa_memz_name[RTE_CRYPTODEV_NAME_MAX_LEN];
251 struct rte_cryptodev *cryptodev;
252 struct qat_asym_dev_private *internals;
253
254 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
255 qat_pci_dev->qat_asym_driver_id =
256 qat_asym_driver_id;
257 } else if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
258 if (qat_pci_dev->qat_asym_driver_id !=
259 qat_asym_driver_id) {
260 QAT_LOG(ERR,
261 "Device %s have different driver id than corresponding device in primary process",
262 name);
263 return -(EFAULT);
264 }
265 }
266
267 snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN, "%s_%s",
268 qat_pci_dev->name, "asym");
269 QAT_LOG(DEBUG, "Creating QAT ASYM device %s\n", name);
270
271 /* Populate subset device to use in cryptodev device creation */
272 qat_dev_instance->asym_rte_dev.driver = &cryptodev_qat_asym_driver;
273 qat_dev_instance->asym_rte_dev.numa_node =
274 qat_dev_instance->pci_dev->device.numa_node;
275 qat_dev_instance->asym_rte_dev.devargs = NULL;
276
277 cryptodev = rte_cryptodev_pmd_create(name,
278 &(qat_dev_instance->asym_rte_dev), &init_params);
279
280 if (cryptodev == NULL)
281 return -ENODEV;
282
283 qat_dev_instance->asym_rte_dev.name = cryptodev->data->name;
284 cryptodev->driver_id = qat_asym_driver_id;
285 cryptodev->dev_ops = &crypto_qat_ops;
286
287 cryptodev->enqueue_burst = qat_asym_pmd_enqueue_op_burst;
288 cryptodev->dequeue_burst = qat_asym_pmd_dequeue_op_burst;
289
290 cryptodev->feature_flags = RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO |
291 RTE_CRYPTODEV_FF_HW_ACCELERATED |
292 RTE_CRYPTODEV_FF_ASYM_SESSIONLESS |
293 RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_EXP |
294 RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_QT;
295
296 if (rte_eal_process_type() != RTE_PROC_PRIMARY)
297 return 0;
298
299 snprintf(capa_memz_name, RTE_CRYPTODEV_NAME_MAX_LEN,
300 "QAT_ASYM_CAPA_GEN_%d",
301 qat_pci_dev->qat_dev_gen);
302
303 internals = cryptodev->data->dev_private;
304 internals->qat_dev = qat_pci_dev;
305 internals->asym_dev_id = cryptodev->data->dev_id;
306 internals->qat_dev_capabilities = qat_gen1_asym_capabilities;
307
308 internals->capa_mz = rte_memzone_lookup(capa_memz_name);
309 if (internals->capa_mz == NULL) {
310 internals->capa_mz = rte_memzone_reserve(capa_memz_name,
311 sizeof(qat_gen1_asym_capabilities),
312 rte_socket_id(), 0);
313 }
314 if (internals->capa_mz == NULL) {
315 QAT_LOG(DEBUG,
316 "Error allocating memzone for capabilities, destroying PMD for %s",
317 name);
318 rte_cryptodev_pmd_destroy(cryptodev);
319 memset(&qat_dev_instance->asym_rte_dev, 0,
320 sizeof(qat_dev_instance->asym_rte_dev));
321 return -EFAULT;
322 }
323
324 memcpy(internals->capa_mz->addr, qat_gen1_asym_capabilities,
325 sizeof(qat_gen1_asym_capabilities));
326 internals->qat_dev_capabilities = internals->capa_mz->addr;
327
328 while (1) {
329 if (qat_dev_cmd_param[i].name == NULL)
330 break;
331 if (!strcmp(qat_dev_cmd_param[i].name, ASYM_ENQ_THRESHOLD_NAME))
332 internals->min_enq_burst_threshold =
333 qat_dev_cmd_param[i].val;
334 i++;
335 }
336
337 qat_pci_dev->asym_dev = internals;
338 QAT_LOG(DEBUG, "Created QAT ASYM device %s as cryptodev instance %d",
339 cryptodev->data->name, internals->asym_dev_id);
340 return 0;
341 }
342
343 int
qat_asym_dev_destroy(struct qat_pci_device * qat_pci_dev)344 qat_asym_dev_destroy(struct qat_pci_device *qat_pci_dev)
345 {
346 struct rte_cryptodev *cryptodev;
347
348 if (qat_pci_dev == NULL)
349 return -ENODEV;
350 if (qat_pci_dev->asym_dev == NULL)
351 return 0;
352 if (rte_eal_process_type() == RTE_PROC_PRIMARY)
353 rte_memzone_free(qat_pci_dev->asym_dev->capa_mz);
354
355 /* free crypto device */
356 cryptodev = rte_cryptodev_pmd_get_dev(
357 qat_pci_dev->asym_dev->asym_dev_id);
358 rte_cryptodev_pmd_destroy(cryptodev);
359 qat_pci_devs[qat_pci_dev->qat_dev_id].asym_rte_dev.name = NULL;
360 qat_pci_dev->asym_dev = NULL;
361
362 return 0;
363 }
364
365 static struct cryptodev_driver qat_crypto_drv;
366 RTE_PMD_REGISTER_CRYPTO_DRIVER(qat_crypto_drv,
367 cryptodev_qat_asym_driver,
368 qat_asym_driver_id);
369