numam-dpdk/drivers/crypto/ccp/rte_ccp_pmd.c

434 lines
10 KiB
C
Raw Normal View History

/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2018 Advanced Micro Devices, Inc. All rights reserved.
*/
#include <rte_string_fns.h>
#include <rte_bus_pci.h>
#include <rte_bus_vdev.h>
#include <rte_common.h>
#include <rte_cryptodev.h>
#include <rte_cryptodev_pmd.h>
#include <rte_pci.h>
#include <rte_dev.h>
#include <rte_malloc.h>
#include "ccp_crypto.h"
#include "ccp_dev.h"
#include "ccp_pmd_private.h"
/**
* Global static parameter used to find if CCP device is already initialized.
*/
static unsigned int ccp_pmd_init_done;
uint8_t ccp_cryptodev_driver_id;
uint8_t cryptodev_cnt;
extern void *sha_ctx;
struct ccp_pmd_init_params {
struct rte_cryptodev_pmd_init_params def_p;
bool auth_opt;
};
#define CCP_CRYPTODEV_PARAM_NAME ("name")
#define CCP_CRYPTODEV_PARAM_SOCKET_ID ("socket_id")
#define CCP_CRYPTODEV_PARAM_MAX_NB_QP ("max_nb_queue_pairs")
#define CCP_CRYPTODEV_PARAM_AUTH_OPT ("ccp_auth_opt")
const char *ccp_pmd_valid_params[] = {
CCP_CRYPTODEV_PARAM_NAME,
CCP_CRYPTODEV_PARAM_SOCKET_ID,
CCP_CRYPTODEV_PARAM_MAX_NB_QP,
CCP_CRYPTODEV_PARAM_AUTH_OPT,
};
/** ccp pmd auth option */
enum ccp_pmd_auth_opt {
CCP_PMD_AUTH_OPT_CCP = 0,
CCP_PMD_AUTH_OPT_CPU,
};
/** parse integer from integer argument */
static int
parse_integer_arg(const char *key __rte_unused,
const char *value, void *extra_args)
{
int *i = (int *) extra_args;
*i = atoi(value);
if (*i < 0) {
CCP_LOG_ERR("Argument has to be positive.\n");
return -EINVAL;
}
return 0;
}
/** parse name argument */
static int
parse_name_arg(const char *key __rte_unused,
const char *value, void *extra_args)
{
struct rte_cryptodev_pmd_init_params *params = extra_args;
if (strlen(value) >= RTE_CRYPTODEV_NAME_MAX_LEN - 1) {
CCP_LOG_ERR("Invalid name %s, should be less than "
"%u bytes.\n", value,
RTE_CRYPTODEV_NAME_MAX_LEN - 1);
return -EINVAL;
}
strncpy(params->name, value, RTE_CRYPTODEV_NAME_MAX_LEN);
return 0;
}
/** parse authentication operation option */
static int
parse_auth_opt_arg(const char *key __rte_unused,
const char *value, void *extra_args)
{
struct ccp_pmd_init_params *params = extra_args;
int i;
i = atoi(value);
if (i < CCP_PMD_AUTH_OPT_CCP || i > CCP_PMD_AUTH_OPT_CPU) {
CCP_LOG_ERR("Invalid ccp pmd auth option. "
"0->auth on CCP(default), "
"1->auth on CPU\n");
return -EINVAL;
}
params->auth_opt = i;
return 0;
}
static int
ccp_pmd_parse_input_args(struct ccp_pmd_init_params *params,
const char *input_args)
{
struct rte_kvargs *kvlist = NULL;
int ret = 0;
if (params == NULL)
return -EINVAL;
if (input_args) {
kvlist = rte_kvargs_parse(input_args,
ccp_pmd_valid_params);
if (kvlist == NULL)
return -1;
ret = rte_kvargs_process(kvlist,
CCP_CRYPTODEV_PARAM_MAX_NB_QP,
&parse_integer_arg,
&params->def_p.max_nb_queue_pairs);
if (ret < 0)
goto free_kvlist;
ret = rte_kvargs_process(kvlist,
CCP_CRYPTODEV_PARAM_SOCKET_ID,
&parse_integer_arg,
&params->def_p.socket_id);
if (ret < 0)
goto free_kvlist;
ret = rte_kvargs_process(kvlist,
CCP_CRYPTODEV_PARAM_NAME,
&parse_name_arg,
&params->def_p);
if (ret < 0)
goto free_kvlist;
ret = rte_kvargs_process(kvlist,
CCP_CRYPTODEV_PARAM_AUTH_OPT,
&parse_auth_opt_arg,
params);
if (ret < 0)
goto free_kvlist;
}
free_kvlist:
rte_kvargs_free(kvlist);
return ret;
}
static struct ccp_session *
get_ccp_session(struct ccp_qp *qp, struct rte_crypto_op *op)
{
struct ccp_session *sess = NULL;
if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) {
if (unlikely(op->sym->session == NULL))
return NULL;
sess = (struct ccp_session *)
get_sym_session_private_data(
op->sym->session,
ccp_cryptodev_driver_id);
} else if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
void *_sess;
void *_sess_private_data = NULL;
struct ccp_private *internals;
if (rte_mempool_get(qp->sess_mp, &_sess))
return NULL;
if (rte_mempool_get(qp->sess_mp, (void **)&_sess_private_data))
return NULL;
sess = (struct ccp_session *)_sess_private_data;
internals = (struct ccp_private *)qp->dev->data->dev_private;
if (unlikely(ccp_set_session_parameters(sess, op->sym->xform,
internals) != 0)) {
rte_mempool_put(qp->sess_mp, _sess);
rte_mempool_put(qp->sess_mp_priv, _sess_private_data);
sess = NULL;
}
op->sym->session = (struct rte_cryptodev_sym_session *)_sess;
set_sym_session_private_data(op->sym->session,
ccp_cryptodev_driver_id,
_sess_private_data);
}
return sess;
}
static uint16_t
ccp_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops,
uint16_t nb_ops)
{
struct ccp_session *sess = NULL;
struct ccp_qp *qp = queue_pair;
struct ccp_queue *cmd_q;
struct rte_cryptodev *dev = qp->dev;
uint16_t i, enq_cnt = 0, slots_req = 0;
uint16_t tmp_ops = nb_ops, b_idx, cur_ops = 0;
if (nb_ops == 0)
return 0;
if (unlikely(rte_ring_full(qp->processed_pkts) != 0))
return 0;
if (tmp_ops >= cryptodev_cnt)
cur_ops = nb_ops / cryptodev_cnt + (nb_ops)%cryptodev_cnt;
else
cur_ops = tmp_ops;
while (tmp_ops) {
b_idx = nb_ops - tmp_ops;
slots_req = 0;
if (cur_ops <= tmp_ops) {
tmp_ops -= cur_ops;
} else {
cur_ops = tmp_ops;
tmp_ops = 0;
}
for (i = 0; i < cur_ops; i++) {
sess = get_ccp_session(qp, ops[i + b_idx]);
if (unlikely(sess == NULL) && (i == 0)) {
qp->qp_stats.enqueue_err_count++;
return 0;
} else if (sess == NULL) {
cur_ops = i;
break;
}
slots_req += ccp_compute_slot_count(sess);
}
cmd_q = ccp_allot_queue(dev, slots_req);
if (unlikely(cmd_q == NULL))
return 0;
enq_cnt += process_ops_to_enqueue(qp, ops, cmd_q, cur_ops,
nb_ops, slots_req, b_idx);
i++;
}
qp->qp_stats.enqueued_count += enq_cnt;
return enq_cnt;
}
static uint16_t
ccp_pmd_dequeue_burst(void *queue_pair, struct rte_crypto_op **ops,
uint16_t nb_ops)
{
struct ccp_qp *qp = queue_pair;
uint16_t nb_dequeued = 0, i, total_nb_ops;
nb_dequeued = process_ops_to_dequeue(qp, ops, nb_ops, &total_nb_ops);
if (total_nb_ops) {
while (nb_dequeued != total_nb_ops) {
nb_dequeued = process_ops_to_dequeue(qp,
ops, nb_ops, &total_nb_ops);
}
}
/* Free session if a session-less crypto op */
for (i = 0; i < nb_dequeued; i++)
if (unlikely(ops[i]->sess_type ==
RTE_CRYPTO_OP_SESSIONLESS)) {
struct ccp_session *sess = (struct ccp_session *)
get_sym_session_private_data(
ops[i]->sym->session,
ccp_cryptodev_driver_id);
rte_mempool_put(qp->sess_mp_priv,
sess);
rte_mempool_put(qp->sess_mp,
ops[i]->sym->session);
ops[i]->sym->session = NULL;
}
qp->qp_stats.dequeued_count += nb_dequeued;
return nb_dequeued;
}
/*
* The set of PCI devices this driver supports
*/
static struct rte_pci_id ccp_pci_id[] = {
{
RTE_PCI_DEVICE(0x1022, 0x1456), /* AMD CCP-5a */
},
{
RTE_PCI_DEVICE(0x1022, 0x1468), /* AMD CCP-5b */
},
{
RTE_PCI_DEVICE(0x1022, 0x15df), /* AMD CCP RV */
},
{.device_id = 0},
};
/** Remove ccp pmd */
static int
cryptodev_ccp_remove(struct rte_vdev_device *dev)
{
const char *name;
ccp_pmd_init_done = 0;
name = rte_vdev_device_name(dev);
rte_free(sha_ctx);
if (name == NULL)
return -EINVAL;
RTE_LOG(INFO, PMD, "Closing ccp device %s on numa socket %u\n",
name, rte_socket_id());
return 0;
}
/** Create crypto device */
static int
cryptodev_ccp_create(const char *name,
struct rte_vdev_device *vdev,
struct ccp_pmd_init_params *init_params)
{
struct rte_cryptodev *dev;
struct ccp_private *internals;
if (init_params->def_p.name[0] == '\0')
strlcpy(init_params->def_p.name, name,
sizeof(init_params->def_p.name));
dev = rte_cryptodev_pmd_create(init_params->def_p.name,
&vdev->device,
&init_params->def_p);
if (dev == NULL) {
CCP_LOG_ERR("failed to create cryptodev vdev");
goto init_error;
}
cryptodev_cnt = ccp_probe_devices(ccp_pci_id);
if (cryptodev_cnt == 0) {
CCP_LOG_ERR("failed to detect CCP crypto device");
goto init_error;
}
printf("CCP : Crypto device count = %d\n", cryptodev_cnt);
dev->driver_id = ccp_cryptodev_driver_id;
/* register rx/tx burst functions for data path */
dev->dev_ops = ccp_pmd_ops;
dev->enqueue_burst = ccp_pmd_enqueue_burst;
dev->dequeue_burst = ccp_pmd_dequeue_burst;
dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
RTE_CRYPTODEV_FF_HW_ACCELERATED |
RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
RTE_CRYPTODEV_FF_SYM_SESSIONLESS;
internals = dev->data->dev_private;
internals->max_nb_qpairs = init_params->def_p.max_nb_queue_pairs;
internals->auth_opt = init_params->auth_opt;
internals->crypto_num_dev = cryptodev_cnt;
return 0;
init_error:
CCP_LOG_ERR("driver %s: %s() failed",
init_params->def_p.name, __func__);
cryptodev_ccp_remove(vdev);
return -EFAULT;
}
/** Probe ccp pmd */
static int
cryptodev_ccp_probe(struct rte_vdev_device *vdev)
{
int rc = 0;
const char *name;
struct ccp_pmd_init_params init_params = {
.def_p = {
"",
sizeof(struct ccp_private),
rte_socket_id(),
CCP_PMD_MAX_QUEUE_PAIRS
},
.auth_opt = CCP_PMD_AUTH_OPT_CCP,
};
const char *input_args;
sha_ctx = (void *)rte_malloc(NULL, SHA512_DIGEST_SIZE, 64);
if (ccp_pmd_init_done) {
RTE_LOG(INFO, PMD, "CCP PMD already initialized\n");
return -EFAULT;
}
name = rte_vdev_device_name(vdev);
if (name == NULL)
return -EINVAL;
input_args = rte_vdev_device_args(vdev);
ccp_pmd_parse_input_args(&init_params, input_args);
init_params.def_p.max_nb_queue_pairs = CCP_PMD_MAX_QUEUE_PAIRS;
RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name,
init_params.def_p.socket_id);
RTE_LOG(INFO, PMD, "Max number of queue pairs = %d\n",
init_params.def_p.max_nb_queue_pairs);
RTE_LOG(INFO, PMD, "Authentication offload to %s\n",
((init_params.auth_opt == 0) ? "CCP" : "CPU"));
rc = cryptodev_ccp_create(name, vdev, &init_params);
if (rc)
return rc;
ccp_pmd_init_done = 1;
return 0;
}
static struct rte_vdev_driver cryptodev_ccp_pmd_drv = {
.probe = cryptodev_ccp_probe,
.remove = cryptodev_ccp_remove
};
static struct cryptodev_driver ccp_crypto_drv;
RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_CCP_PMD, cryptodev_ccp_pmd_drv);
RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_CCP_PMD,
"max_nb_queue_pairs=<int> "
"socket_id=<int> "
"ccp_auth_opt=<int>");
RTE_PMD_REGISTER_CRYPTO_DRIVER(ccp_crypto_drv, cryptodev_ccp_pmd_drv.driver,
ccp_cryptodev_driver_id);