1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2018-2022 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"
12 #include "qat_comp_pmd.h"
13 #include "adf_pf2vf_msg.h"
14 #include "qat_pf2vf.h"
16 /* Hardware device information per generation */
17 struct qat_gen_hw_data qat_gen_config[QAT_N_GENS];
18 struct qat_dev_hw_spec_funcs *qat_dev_hw_spec[QAT_N_GENS];
20 /* per-process array of device data */
21 struct qat_device_info qat_pci_devs[RTE_PMD_QAT_MAX_PCI_DEVICES];
22 static int qat_nb_pci_devices;
25 * The set of PCI devices this driver supports
28 static const struct rte_pci_id pci_id_qat_map[] = {
30 RTE_PCI_DEVICE(0x8086, 0x0443),
33 RTE_PCI_DEVICE(0x8086, 0x37c9),
36 RTE_PCI_DEVICE(0x8086, 0x19e3),
39 RTE_PCI_DEVICE(0x8086, 0x6f55),
42 RTE_PCI_DEVICE(0x8086, 0x18ef),
45 RTE_PCI_DEVICE(0x8086, 0x18a1),
48 RTE_PCI_DEVICE(0x8086, 0x4941),
51 RTE_PCI_DEVICE(0x8086, 0x4943),
57 qat_pci_get_extra_size(enum qat_device_gen qat_dev_gen)
59 struct qat_dev_hw_spec_funcs *ops_hw =
60 qat_dev_hw_spec[qat_dev_gen];
61 RTE_FUNC_PTR_OR_ERR_RET(ops_hw->qat_dev_get_extra_size,
63 return ops_hw->qat_dev_get_extra_size();
66 static struct qat_pci_device *
67 qat_pci_get_named_dev(const char *name)
74 for (i = 0; i < RTE_PMD_QAT_MAX_PCI_DEVICES; i++) {
75 if (qat_pci_devs[i].mz &&
76 (strcmp(((struct qat_pci_device *)
77 qat_pci_devs[i].mz->addr)->name, name)
79 return (struct qat_pci_device *)
80 qat_pci_devs[i].mz->addr;
87 qat_pci_find_free_device_index(void)
91 for (dev_id = 0; dev_id < RTE_PMD_QAT_MAX_PCI_DEVICES;
93 if (qat_pci_devs[dev_id].mz == NULL)
99 struct qat_pci_device *
100 qat_get_qat_dev_from_pci_dev(struct rte_pci_device *pci_dev)
102 char name[QAT_DEV_NAME_MAX_LEN];
104 rte_pci_device_name(&pci_dev->addr, name, sizeof(name));
106 return qat_pci_get_named_dev(name);
110 qat_dev_parse_cmd(const char *str, struct qat_dev_cmd_param
117 char value_str[4] = { };
119 param = qat_dev_cmd_param[i].name;
123 const char *arg = strstr(str, param);
124 const char *arg2 = NULL;
127 arg2 = arg + strlen(param);
129 QAT_LOG(DEBUG, "parsing error '=' sign"
130 " should immediately follow %s",
136 QAT_LOG(DEBUG, "%s not provided", param);
141 if (!isdigit(*(arg2 + iter)))
146 QAT_LOG(DEBUG, "parsing error %s"
147 " no number provided",
150 memcpy(value_str, arg2, iter);
151 value = strtol(value_str, NULL, 10);
152 if (value > MAX_QP_THRESHOLD_SIZE) {
153 QAT_LOG(DEBUG, "Exceeded max size of"
154 " threshold, setting to %d",
155 MAX_QP_THRESHOLD_SIZE);
156 value = MAX_QP_THRESHOLD_SIZE;
158 QAT_LOG(DEBUG, "parsing %s = %ld",
162 qat_dev_cmd_param[i].val = value;
167 struct qat_pci_device *
168 qat_pci_device_allocate(struct rte_pci_device *pci_dev,
169 struct qat_dev_cmd_param *qat_dev_cmd_param)
171 struct qat_pci_device *qat_dev;
172 enum qat_device_gen qat_dev_gen;
173 uint8_t qat_dev_id = 0;
174 char name[QAT_DEV_NAME_MAX_LEN];
175 struct rte_devargs *devargs = pci_dev->device.devargs;
176 struct qat_dev_hw_spec_funcs *ops_hw;
177 struct rte_mem_resource *mem_resource;
178 const struct rte_memzone *qat_dev_mz;
179 int qat_dev_size, extra_size;
181 rte_pci_device_name(&pci_dev->addr, name, sizeof(name));
182 snprintf(name+strlen(name), QAT_DEV_NAME_MAX_LEN-strlen(name), "_qat");
184 switch (pci_dev->id.device_id) {
186 qat_dev_gen = QAT_GEN1;
192 qat_dev_gen = QAT_GEN2;
195 qat_dev_gen = QAT_GEN3;
199 qat_dev_gen = QAT_GEN4;
202 QAT_LOG(ERR, "Invalid dev_id, can't determine generation");
206 if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
207 const struct rte_memzone *mz = rte_memzone_lookup(name);
211 "Secondary can't find %s mz, did primary create device?",
216 qat_pci_devs[qat_dev->qat_dev_id].mz = mz;
217 qat_pci_devs[qat_dev->qat_dev_id].pci_dev = pci_dev;
218 qat_nb_pci_devices++;
219 QAT_LOG(DEBUG, "QAT device %d found, name %s, total QATs %d",
220 qat_dev->qat_dev_id, qat_dev->name, qat_nb_pci_devices);
224 if (qat_pci_get_named_dev(name) != NULL) {
225 QAT_LOG(ERR, "QAT device with name %s already allocated!",
230 qat_dev_id = qat_pci_find_free_device_index();
231 if (qat_dev_id == RTE_PMD_QAT_MAX_PCI_DEVICES) {
232 QAT_LOG(ERR, "Reached maximum number of QAT devices");
236 extra_size = qat_pci_get_extra_size(qat_dev_gen);
237 if (extra_size < 0) {
238 QAT_LOG(ERR, "QAT internal error: no pci pointer for gen %d",
243 qat_dev_size = sizeof(struct qat_pci_device) + extra_size;
244 qat_dev_mz = rte_memzone_reserve(name, qat_dev_size,
247 if (qat_dev_mz == NULL) {
248 QAT_LOG(ERR, "Error when allocating memzone for QAT_%d",
253 qat_dev = qat_dev_mz->addr;
254 memset(qat_dev, 0, qat_dev_size);
255 qat_dev->dev_private = qat_dev + 1;
256 strlcpy(qat_dev->name, name, QAT_DEV_NAME_MAX_LEN);
257 qat_dev->qat_dev_id = qat_dev_id;
258 qat_pci_devs[qat_dev_id].pci_dev = pci_dev;
259 qat_dev->qat_dev_gen = qat_dev_gen;
261 ops_hw = qat_dev_hw_spec[qat_dev->qat_dev_gen];
262 if (ops_hw->qat_dev_get_misc_bar == NULL) {
263 QAT_LOG(ERR, "qat_dev_get_misc_bar function pointer not set");
264 rte_memzone_free(qat_dev_mz);
267 if (ops_hw->qat_dev_get_misc_bar(&mem_resource, pci_dev) == 0) {
268 if (mem_resource->addr == NULL) {
269 QAT_LOG(ERR, "QAT cannot get access to VF misc bar");
270 rte_memzone_free(qat_dev_mz);
273 qat_dev->misc_bar_io_addr = mem_resource->addr;
275 qat_dev->misc_bar_io_addr = NULL;
277 if (devargs && devargs->drv_str)
278 qat_dev_parse_cmd(devargs->drv_str, qat_dev_cmd_param);
280 if (qat_read_qp_config(qat_dev)) {
282 "Cannot acquire ring configuration for QAT_%d",
284 rte_memzone_free(qat_dev_mz);
288 /* No errors when allocating, attach memzone with
289 * qat_dev to list of devices
291 qat_pci_devs[qat_dev_id].mz = qat_dev_mz;
293 rte_spinlock_init(&qat_dev->arb_csr_lock);
294 qat_nb_pci_devices++;
296 QAT_LOG(DEBUG, "QAT device %d found, name %s, total QATs %d",
297 qat_dev->qat_dev_id, qat_dev->name, qat_nb_pci_devices);
303 qat_pci_device_release(struct rte_pci_device *pci_dev)
305 struct qat_pci_device *qat_dev;
306 char name[QAT_DEV_NAME_MAX_LEN];
312 rte_pci_device_name(&pci_dev->addr, name, sizeof(name));
313 snprintf(name+strlen(name), QAT_DEV_NAME_MAX_LEN-strlen(name), "_qat");
314 qat_dev = qat_pci_get_named_dev(name);
315 if (qat_dev != NULL) {
317 struct qat_device_info *inst =
318 &qat_pci_devs[qat_dev->qat_dev_id];
319 /* Check that there are no service devs still on pci device */
321 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
322 if (qat_dev->sym_dev != NULL) {
323 QAT_LOG(DEBUG, "QAT sym device %s is busy",
327 if (qat_dev->asym_dev != NULL) {
328 QAT_LOG(DEBUG, "QAT asym device %s is busy",
332 if (qat_dev->comp_dev != NULL) {
333 QAT_LOG(DEBUG, "QAT comp device %s is busy",
339 rte_memzone_free(inst->mz);
341 memset(inst, 0, sizeof(struct qat_device_info));
342 qat_nb_pci_devices--;
343 QAT_LOG(DEBUG, "QAT device %s released, total QATs %d",
344 name, qat_nb_pci_devices);
350 qat_pci_dev_destroy(struct qat_pci_device *qat_pci_dev,
351 struct rte_pci_device *pci_dev)
353 qat_sym_dev_destroy(qat_pci_dev);
354 qat_comp_dev_destroy(qat_pci_dev);
355 qat_asym_dev_destroy(qat_pci_dev);
356 return qat_pci_device_release(pci_dev);
359 static int qat_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
360 struct rte_pci_device *pci_dev)
362 int sym_ret = 0, asym_ret = 0, comp_ret = 0;
363 int num_pmds_created = 0;
364 struct qat_pci_device *qat_pci_dev;
365 struct qat_dev_hw_spec_funcs *ops_hw;
366 struct qat_dev_cmd_param qat_dev_cmd_param[] = {
367 { SYM_ENQ_THRESHOLD_NAME, 0 },
368 { ASYM_ENQ_THRESHOLD_NAME, 0 },
369 { COMP_ENQ_THRESHOLD_NAME, 0 },
373 QAT_LOG(DEBUG, "Found QAT device at %02x:%02x.%x",
376 pci_dev->addr.function);
378 qat_pci_dev = qat_pci_device_allocate(pci_dev, qat_dev_cmd_param);
379 if (qat_pci_dev == NULL)
382 ops_hw = qat_dev_hw_spec[qat_pci_dev->qat_dev_gen];
383 RTE_FUNC_PTR_OR_ERR_RET(ops_hw->qat_dev_reset_ring_pairs,
385 if (ops_hw->qat_dev_reset_ring_pairs(qat_pci_dev)) {
387 "Cannot reset ring pairs, does pf driver supports pf2vf comms?"
392 sym_ret = qat_sym_dev_create(qat_pci_dev, qat_dev_cmd_param);
399 "Failed to create QAT SYM PMD on device %s",
402 comp_ret = qat_comp_dev_create(qat_pci_dev, qat_dev_cmd_param);
407 "Failed to create QAT COMP PMD on device %s",
410 asym_ret = qat_asym_dev_create(qat_pci_dev, qat_dev_cmd_param);
415 "Failed to create QAT ASYM PMD on device %s",
418 if (num_pmds_created == 0)
419 qat_pci_dev_destroy(qat_pci_dev, pci_dev);
425 qat_pci_remove(struct rte_pci_device *pci_dev)
427 struct qat_pci_device *qat_pci_dev;
432 qat_pci_dev = qat_get_qat_dev_from_pci_dev(pci_dev);
433 if (qat_pci_dev == NULL)
436 return qat_pci_dev_destroy(qat_pci_dev, pci_dev);
439 static struct rte_pci_driver rte_qat_pmd = {
440 .id_table = pci_id_qat_map,
441 .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
442 .probe = qat_pci_probe,
443 .remove = qat_pci_remove
447 qat_sym_dev_create(struct qat_pci_device *qat_pci_dev __rte_unused,
448 struct qat_dev_cmd_param *qat_dev_cmd_param __rte_unused)
454 qat_asym_dev_create(struct qat_pci_device *qat_pci_dev __rte_unused,
455 struct qat_dev_cmd_param *qat_dev_cmd_param __rte_unused)
461 qat_sym_dev_destroy(struct qat_pci_device *qat_pci_dev __rte_unused)
467 qat_asym_dev_destroy(struct qat_pci_device *qat_pci_dev __rte_unused)
473 qat_comp_dev_create(struct qat_pci_device *qat_pci_dev __rte_unused,
474 struct qat_dev_cmd_param *qat_dev_cmd_param __rte_unused)
480 qat_comp_dev_destroy(struct qat_pci_device *qat_pci_dev __rte_unused)
485 RTE_PMD_REGISTER_PCI(QAT_PCI_NAME, rte_qat_pmd);
486 RTE_PMD_REGISTER_PCI_TABLE(QAT_PCI_NAME, pci_id_qat_map);
487 RTE_PMD_REGISTER_KMOD_DEP(QAT_PCI_NAME, "* igb_uio | uio_pci_generic | vfio-pci");