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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2018 Intel Corporation
*/
#include <rte_string_fns.h>
#include "qat_device.h"
#include "adf_transport_access_macros.h"
#include "qat_sym_pmd.h"
#include "qat_comp_pmd.h"
/* Hardware device information per generation */
__extension__
struct qat_gen_hw_data qat_gen_config[] = {
[QAT_GEN1] = {
.dev_gen = QAT_GEN1,
.qp_hw_data = qat_gen1_qps,
.comp_num_im_bufs_required = QAT_NUM_INTERM_BUFS_GEN1
},
[QAT_GEN2] = {
.dev_gen = QAT_GEN2,
.qp_hw_data = qat_gen1_qps,
/* gen2 has same ring layout as gen1 */
.comp_num_im_bufs_required = QAT_NUM_INTERM_BUFS_GEN2
},
[QAT_GEN3] = {
.dev_gen = QAT_GEN3,
.qp_hw_data = qat_gen3_qps,
.comp_num_im_bufs_required = QAT_NUM_INTERM_BUFS_GEN3
},
};
static struct qat_pci_device qat_pci_devices[RTE_PMD_QAT_MAX_PCI_DEVICES];
static int qat_nb_pci_devices;
/*
* The set of PCI devices this driver supports
*/
static const struct rte_pci_id pci_id_qat_map[] = {
{
RTE_PCI_DEVICE(0x8086, 0x0443),
},
{
RTE_PCI_DEVICE(0x8086, 0x37c9),
},
{
RTE_PCI_DEVICE(0x8086, 0x19e3),
},
{
RTE_PCI_DEVICE(0x8086, 0x6f55),
},
{
RTE_PCI_DEVICE(0x8086, 0x18a1),
},
{.device_id = 0},
};
static struct qat_pci_device *
qat_pci_get_dev(uint8_t dev_id)
{
return &qat_pci_devices[dev_id];
}
static struct qat_pci_device *
qat_pci_get_named_dev(const char *name)
{
struct qat_pci_device *dev;
unsigned int i;
if (name == NULL)
return NULL;
for (i = 0; i < RTE_PMD_QAT_MAX_PCI_DEVICES; i++) {
dev = &qat_pci_devices[i];
if ((dev->attached == QAT_ATTACHED) &&
(strcmp(dev->name, name) == 0))
return dev;
}
return NULL;
}
static uint8_t
qat_pci_find_free_device_index(void)
{
uint8_t dev_id;
for (dev_id = 0; dev_id < RTE_PMD_QAT_MAX_PCI_DEVICES; dev_id++) {
if (qat_pci_devices[dev_id].attached == QAT_DETACHED)
break;
}
return dev_id;
}
struct qat_pci_device *
qat_get_qat_dev_from_pci_dev(struct rte_pci_device *pci_dev)
{
char name[QAT_DEV_NAME_MAX_LEN];
rte_pci_device_name(&pci_dev->addr, name, sizeof(name));
return qat_pci_get_named_dev(name);
}
struct qat_pci_device *
qat_pci_device_allocate(struct rte_pci_device *pci_dev)
{
struct qat_pci_device *qat_dev;
uint8_t qat_dev_id;
char name[QAT_DEV_NAME_MAX_LEN];
rte_pci_device_name(&pci_dev->addr, name, sizeof(name));
snprintf(name+strlen(name), QAT_DEV_NAME_MAX_LEN-strlen(name), "_qat");
if (qat_pci_get_named_dev(name) != NULL) {
QAT_LOG(ERR, "QAT device with name %s already allocated!",
name);
return NULL;
}
qat_dev_id = qat_pci_find_free_device_index();
if (qat_dev_id == RTE_PMD_QAT_MAX_PCI_DEVICES) {
QAT_LOG(ERR, "Reached maximum number of QAT devices");
return NULL;
}
qat_dev = qat_pci_get_dev(qat_dev_id);
memset(qat_dev, 0, sizeof(*qat_dev));
strlcpy(qat_dev->name, name, QAT_DEV_NAME_MAX_LEN);
qat_dev->qat_dev_id = qat_dev_id;
qat_dev->pci_dev = pci_dev;
switch (qat_dev->pci_dev->id.device_id) {
case 0x0443:
qat_dev->qat_dev_gen = QAT_GEN1;
break;
case 0x37c9:
case 0x19e3:
case 0x6f55:
qat_dev->qat_dev_gen = QAT_GEN2;
break;
case 0x18a1:
qat_dev->qat_dev_gen = QAT_GEN3;
break;
default:
QAT_LOG(ERR, "Invalid dev_id, can't determine generation");
return NULL;
}
rte_spinlock_init(&qat_dev->arb_csr_lock);
qat_dev->attached = QAT_ATTACHED;
qat_nb_pci_devices++;
QAT_LOG(DEBUG, "QAT device %d allocated, name %s, total QATs %d",
qat_dev->qat_dev_id, qat_dev->name, qat_nb_pci_devices);
return qat_dev;
}
int
qat_pci_device_release(struct rte_pci_device *pci_dev)
{
struct qat_pci_device *qat_dev;
char name[QAT_DEV_NAME_MAX_LEN];
if (pci_dev == NULL)
return -EINVAL;
rte_pci_device_name(&pci_dev->addr, name, sizeof(name));
snprintf(name+strlen(name), QAT_DEV_NAME_MAX_LEN-strlen(name), "_qat");
qat_dev = qat_pci_get_named_dev(name);
if (qat_dev != NULL) {
/* Check that there are no service devs still on pci device */
if (qat_dev->sym_dev != NULL)
return -EBUSY;
qat_dev->attached = QAT_DETACHED;
qat_nb_pci_devices--;
}
QAT_LOG(DEBUG, "QAT device %s released, total QATs %d",
name, qat_nb_pci_devices);
return 0;
}
static int
qat_pci_dev_destroy(struct qat_pci_device *qat_pci_dev,
struct rte_pci_device *pci_dev)
{
qat_sym_dev_destroy(qat_pci_dev);
qat_comp_dev_destroy(qat_pci_dev);
qat_asym_dev_destroy(qat_pci_dev);
return qat_pci_device_release(pci_dev);
}
static int qat_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
struct rte_pci_device *pci_dev)
{
int ret = 0;
int num_pmds_created = 0;
struct qat_pci_device *qat_pci_dev;
QAT_LOG(DEBUG, "Found QAT device at %02x:%02x.%x",
pci_dev->addr.bus,
pci_dev->addr.devid,
pci_dev->addr.function);
qat_pci_dev = qat_pci_device_allocate(pci_dev);
if (qat_pci_dev == NULL)
return -ENODEV;
ret = qat_sym_dev_create(qat_pci_dev);
if (ret == 0)
num_pmds_created++;
else
QAT_LOG(WARNING,
"Failed to create QAT SYM PMD on device %s",
qat_pci_dev->name);
ret = qat_comp_dev_create(qat_pci_dev);
if (ret == 0)
num_pmds_created++;
else
QAT_LOG(WARNING,
"Failed to create QAT COMP PMD on device %s",
qat_pci_dev->name);
ret = qat_asym_dev_create(qat_pci_dev);
if (ret == 0)
num_pmds_created++;
else
QAT_LOG(WARNING,
"Failed to create QAT ASYM PMD on device %s",
qat_pci_dev->name);
if (num_pmds_created == 0)
qat_pci_dev_destroy(qat_pci_dev, pci_dev);
return 0;
}
static int qat_pci_remove(struct rte_pci_device *pci_dev)
{
struct qat_pci_device *qat_pci_dev;
if (pci_dev == NULL)
return -EINVAL;
qat_pci_dev = qat_get_qat_dev_from_pci_dev(pci_dev);
if (qat_pci_dev == NULL)
return 0;
return qat_pci_dev_destroy(qat_pci_dev, pci_dev);
}
static struct rte_pci_driver rte_qat_pmd = {
.id_table = pci_id_qat_map,
.drv_flags = RTE_PCI_DRV_NEED_MAPPING,
.probe = qat_pci_probe,
.remove = qat_pci_remove
};
__rte_weak int
qat_sym_dev_create(struct qat_pci_device *qat_pci_dev __rte_unused)
{
return 0;
}
__rte_weak int
qat_asym_dev_create(struct qat_pci_device *qat_pci_dev __rte_unused)
{
return 0;
}
__rte_weak int
qat_sym_dev_destroy(struct qat_pci_device *qat_pci_dev __rte_unused)
{
return 0;
}
__rte_weak int
qat_asym_dev_destroy(struct qat_pci_device *qat_pci_dev __rte_unused)
{
return 0;
}
__rte_weak int
qat_comp_dev_create(struct qat_pci_device *qat_pci_dev __rte_unused)
{
return 0;
}
__rte_weak int
qat_comp_dev_destroy(struct qat_pci_device *qat_pci_dev __rte_unused)
{
return 0;
}
RTE_PMD_REGISTER_PCI(QAT_PCI_NAME, rte_qat_pmd);
RTE_PMD_REGISTER_PCI_TABLE(QAT_PCI_NAME, pci_id_qat_map);
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