1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2018-2020 Intel Corporation
5 #include <rte_string_fns.h>
6 #include <rte_devargs.h>
9 #include "qat_device.h"
10 #include "adf_transport_access_macros.h"
11 #include "qat_sym_pmd.h"
12 #include "qat_comp_pmd.h"
14 /* Hardware device information per generation */
16 struct qat_gen_hw_data qat_gen_config[] = {
19 .qp_hw_data = qat_gen1_qps,
20 .comp_num_im_bufs_required = QAT_NUM_INTERM_BUFS_GEN1
24 .qp_hw_data = qat_gen1_qps,
25 /* gen2 has same ring layout as gen1 */
26 .comp_num_im_bufs_required = QAT_NUM_INTERM_BUFS_GEN2
30 .qp_hw_data = qat_gen3_qps,
31 .comp_num_im_bufs_required = QAT_NUM_INTERM_BUFS_GEN3
35 /* per-process array of device data */
36 struct qat_device_info qat_pci_devs[RTE_PMD_QAT_MAX_PCI_DEVICES];
37 static int qat_nb_pci_devices;
40 * The set of PCI devices this driver supports
43 static const struct rte_pci_id pci_id_qat_map[] = {
45 RTE_PCI_DEVICE(0x8086, 0x0443),
48 RTE_PCI_DEVICE(0x8086, 0x37c9),
51 RTE_PCI_DEVICE(0x8086, 0x19e3),
54 RTE_PCI_DEVICE(0x8086, 0x6f55),
57 RTE_PCI_DEVICE(0x8086, 0x18ef),
60 RTE_PCI_DEVICE(0x8086, 0x18a1),
65 static struct qat_pci_device *
66 qat_pci_get_named_dev(const char *name)
73 for (i = 0; i < RTE_PMD_QAT_MAX_PCI_DEVICES; i++) {
74 if (qat_pci_devs[i].mz &&
75 (strcmp(((struct qat_pci_device *)
76 qat_pci_devs[i].mz->addr)->name, name)
78 return (struct qat_pci_device *)
79 qat_pci_devs[i].mz->addr;
86 qat_pci_find_free_device_index(void)
90 for (dev_id = 0; dev_id < RTE_PMD_QAT_MAX_PCI_DEVICES;
92 if (qat_pci_devs[dev_id].mz == NULL)
98 struct qat_pci_device *
99 qat_get_qat_dev_from_pci_dev(struct rte_pci_device *pci_dev)
101 char name[QAT_DEV_NAME_MAX_LEN];
103 rte_pci_device_name(&pci_dev->addr, name, sizeof(name));
105 return qat_pci_get_named_dev(name);
108 static void qat_dev_parse_cmd(const char *str, struct qat_dev_cmd_param
115 char value_str[4] = { };
117 param = qat_dev_cmd_param[i].name;
121 const char *arg = strstr(str, param);
122 const char *arg2 = NULL;
125 arg2 = arg + strlen(param);
127 QAT_LOG(DEBUG, "parsing error '=' sign"
128 " should immediately follow %s",
134 QAT_LOG(DEBUG, "%s not provided", param);
139 if (!isdigit(*(arg2 + iter)))
144 QAT_LOG(DEBUG, "parsing error %s"
145 " no number provided",
148 memcpy(value_str, arg2, iter);
149 value = strtol(value_str, NULL, 10);
150 if (value > MAX_QP_THRESHOLD_SIZE) {
151 QAT_LOG(DEBUG, "Exceeded max size of"
152 " threshold, setting to %d",
153 MAX_QP_THRESHOLD_SIZE);
154 value = MAX_QP_THRESHOLD_SIZE;
156 QAT_LOG(DEBUG, "parsing %s = %ld",
160 qat_dev_cmd_param[i].val = value;
165 struct qat_pci_device *
166 qat_pci_device_allocate(struct rte_pci_device *pci_dev,
167 struct qat_dev_cmd_param *qat_dev_cmd_param)
169 struct qat_pci_device *qat_dev;
170 uint8_t qat_dev_id = 0;
171 char name[QAT_DEV_NAME_MAX_LEN];
172 struct rte_devargs *devargs = pci_dev->device.devargs;
174 rte_pci_device_name(&pci_dev->addr, name, sizeof(name));
175 snprintf(name+strlen(name), QAT_DEV_NAME_MAX_LEN-strlen(name), "_qat");
177 if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
178 const struct rte_memzone *mz = rte_memzone_lookup(name);
182 "Secondary can't find %s mz, did primary create device?",
187 qat_pci_devs[qat_dev->qat_dev_id].mz = mz;
188 qat_pci_devs[qat_dev->qat_dev_id].pci_dev = pci_dev;
189 qat_nb_pci_devices++;
190 QAT_LOG(DEBUG, "QAT device %d found, name %s, total QATs %d",
191 qat_dev->qat_dev_id, qat_dev->name, qat_nb_pci_devices);
195 if (qat_pci_get_named_dev(name) != NULL) {
196 QAT_LOG(ERR, "QAT device with name %s already allocated!",
201 qat_dev_id = qat_pci_find_free_device_index();
202 if (qat_dev_id == RTE_PMD_QAT_MAX_PCI_DEVICES) {
203 QAT_LOG(ERR, "Reached maximum number of QAT devices");
207 qat_pci_devs[qat_dev_id].mz = rte_memzone_reserve(name,
208 sizeof(struct qat_pci_device),
211 if (qat_pci_devs[qat_dev_id].mz == NULL) {
212 QAT_LOG(ERR, "Error when allocating memzone for QAT_%d",
217 qat_dev = qat_pci_devs[qat_dev_id].mz->addr;
218 memset(qat_dev, 0, sizeof(*qat_dev));
219 strlcpy(qat_dev->name, name, QAT_DEV_NAME_MAX_LEN);
220 qat_dev->qat_dev_id = qat_dev_id;
221 qat_pci_devs[qat_dev_id].pci_dev = pci_dev;
222 switch (pci_dev->id.device_id) {
224 qat_dev->qat_dev_gen = QAT_GEN1;
230 qat_dev->qat_dev_gen = QAT_GEN2;
233 qat_dev->qat_dev_gen = QAT_GEN3;
236 QAT_LOG(ERR, "Invalid dev_id, can't determine generation");
237 rte_memzone_free(qat_pci_devs[qat_dev->qat_dev_id].mz);
241 if (devargs && devargs->drv_str)
242 qat_dev_parse_cmd(devargs->drv_str, qat_dev_cmd_param);
244 rte_spinlock_init(&qat_dev->arb_csr_lock);
245 qat_nb_pci_devices++;
247 QAT_LOG(DEBUG, "QAT device %d found, name %s, total QATs %d",
248 qat_dev->qat_dev_id, qat_dev->name, qat_nb_pci_devices);
254 qat_pci_device_release(struct rte_pci_device *pci_dev)
256 struct qat_pci_device *qat_dev;
257 char name[QAT_DEV_NAME_MAX_LEN];
263 rte_pci_device_name(&pci_dev->addr, name, sizeof(name));
264 snprintf(name+strlen(name), QAT_DEV_NAME_MAX_LEN-strlen(name), "_qat");
265 qat_dev = qat_pci_get_named_dev(name);
266 if (qat_dev != NULL) {
268 struct qat_device_info *inst =
269 &qat_pci_devs[qat_dev->qat_dev_id];
270 /* Check that there are no service devs still on pci device */
272 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
273 if (qat_dev->sym_dev != NULL) {
274 QAT_LOG(DEBUG, "QAT sym device %s is busy",
278 if (qat_dev->asym_dev != NULL) {
279 QAT_LOG(DEBUG, "QAT asym device %s is busy",
283 if (qat_dev->comp_dev != NULL) {
284 QAT_LOG(DEBUG, "QAT comp device %s is busy",
290 rte_memzone_free(inst->mz);
292 memset(inst, 0, sizeof(struct qat_device_info));
293 qat_nb_pci_devices--;
294 QAT_LOG(DEBUG, "QAT device %s released, total QATs %d",
295 name, qat_nb_pci_devices);
301 qat_pci_dev_destroy(struct qat_pci_device *qat_pci_dev,
302 struct rte_pci_device *pci_dev)
304 qat_sym_dev_destroy(qat_pci_dev);
305 qat_comp_dev_destroy(qat_pci_dev);
306 qat_asym_dev_destroy(qat_pci_dev);
307 return qat_pci_device_release(pci_dev);
310 static int qat_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
311 struct rte_pci_device *pci_dev)
313 int sym_ret = 0, asym_ret = 0, comp_ret = 0;
314 int num_pmds_created = 0;
315 struct qat_pci_device *qat_pci_dev;
316 struct qat_dev_cmd_param qat_dev_cmd_param[] = {
317 { SYM_ENQ_THRESHOLD_NAME, 0 },
318 { ASYM_ENQ_THRESHOLD_NAME, 0 },
319 { COMP_ENQ_THRESHOLD_NAME, 0 },
323 QAT_LOG(DEBUG, "Found QAT device at %02x:%02x.%x",
326 pci_dev->addr.function);
328 qat_pci_dev = qat_pci_device_allocate(pci_dev, qat_dev_cmd_param);
329 if (qat_pci_dev == NULL)
332 sym_ret = qat_sym_dev_create(qat_pci_dev, qat_dev_cmd_param);
339 "Failed to create QAT SYM PMD on device %s",
342 comp_ret = qat_comp_dev_create(qat_pci_dev, qat_dev_cmd_param);
347 "Failed to create QAT COMP PMD on device %s",
350 asym_ret = qat_asym_dev_create(qat_pci_dev, qat_dev_cmd_param);
355 "Failed to create QAT ASYM PMD on device %s",
358 if (num_pmds_created == 0)
359 qat_pci_dev_destroy(qat_pci_dev, pci_dev);
364 static int qat_pci_remove(struct rte_pci_device *pci_dev)
366 struct qat_pci_device *qat_pci_dev;
371 qat_pci_dev = qat_get_qat_dev_from_pci_dev(pci_dev);
372 if (qat_pci_dev == NULL)
375 return qat_pci_dev_destroy(qat_pci_dev, pci_dev);
378 static struct rte_pci_driver rte_qat_pmd = {
379 .id_table = pci_id_qat_map,
380 .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
381 .probe = qat_pci_probe,
382 .remove = qat_pci_remove
386 qat_sym_dev_create(struct qat_pci_device *qat_pci_dev __rte_unused,
387 struct qat_dev_cmd_param *qat_dev_cmd_param __rte_unused)
393 qat_asym_dev_create(struct qat_pci_device *qat_pci_dev __rte_unused,
394 struct qat_dev_cmd_param *qat_dev_cmd_param __rte_unused)
400 qat_sym_dev_destroy(struct qat_pci_device *qat_pci_dev __rte_unused)
406 qat_asym_dev_destroy(struct qat_pci_device *qat_pci_dev __rte_unused)
412 qat_comp_dev_create(struct qat_pci_device *qat_pci_dev __rte_unused,
413 struct qat_dev_cmd_param *qat_dev_cmd_param __rte_unused)
419 qat_comp_dev_destroy(struct qat_pci_device *qat_pci_dev __rte_unused)
424 RTE_PMD_REGISTER_PCI(QAT_PCI_NAME, rte_qat_pmd);
425 RTE_PMD_REGISTER_PCI_TABLE(QAT_PCI_NAME, pci_id_qat_map);