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Diffstat (limited to 'drivers/crypto/qat/qat_common/qat_crypto.c')
-rw-r--r--drivers/crypto/qat/qat_common/qat_crypto.c287
1 files changed, 0 insertions, 287 deletions
diff --git a/drivers/crypto/qat/qat_common/qat_crypto.c b/drivers/crypto/qat/qat_common/qat_crypto.c
deleted file mode 100644
index 40c8e74d1cf9..000000000000
--- a/drivers/crypto/qat/qat_common/qat_crypto.c
+++ /dev/null
@@ -1,287 +0,0 @@
-// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only)
-/* Copyright(c) 2014 - 2020 Intel Corporation */
-#include <linux/module.h>
-#include <linux/slab.h>
-#include "adf_accel_devices.h"
-#include "adf_common_drv.h"
-#include "adf_transport.h"
-#include "adf_cfg.h"
-#include "adf_cfg_strings.h"
-#include "adf_gen2_hw_data.h"
-#include "qat_crypto.h"
-#include "icp_qat_fw.h"
-
-#define SEC ADF_KERNEL_SEC
-
-static struct service_hndl qat_crypto;
-
-void qat_crypto_put_instance(struct qat_crypto_instance *inst)
-{
- atomic_dec(&inst->refctr);
- adf_dev_put(inst->accel_dev);
-}
-
-static int qat_crypto_free_instances(struct adf_accel_dev *accel_dev)
-{
- struct qat_crypto_instance *inst, *tmp;
- int i;
-
- list_for_each_entry_safe(inst, tmp, &accel_dev->crypto_list, list) {
- for (i = 0; i < atomic_read(&inst->refctr); i++)
- qat_crypto_put_instance(inst);
-
- if (inst->sym_tx)
- adf_remove_ring(inst->sym_tx);
-
- if (inst->sym_rx)
- adf_remove_ring(inst->sym_rx);
-
- if (inst->pke_tx)
- adf_remove_ring(inst->pke_tx);
-
- if (inst->pke_rx)
- adf_remove_ring(inst->pke_rx);
-
- list_del(&inst->list);
- kfree(inst);
- }
- return 0;
-}
-
-struct qat_crypto_instance *qat_crypto_get_instance_node(int node)
-{
- struct adf_accel_dev *accel_dev = NULL, *tmp_dev;
- struct qat_crypto_instance *inst = NULL, *tmp_inst;
- unsigned long best = ~0;
-
- list_for_each_entry(tmp_dev, adf_devmgr_get_head(), list) {
- unsigned long ctr;
-
- if ((node == dev_to_node(&GET_DEV(tmp_dev)) ||
- dev_to_node(&GET_DEV(tmp_dev)) < 0) &&
- adf_dev_started(tmp_dev) &&
- !list_empty(&tmp_dev->crypto_list)) {
- ctr = atomic_read(&tmp_dev->ref_count);
- if (best > ctr) {
- accel_dev = tmp_dev;
- best = ctr;
- }
- }
- }
-
- if (!accel_dev) {
- pr_debug_ratelimited("QAT: Could not find a device on node %d\n", node);
- /* Get any started device */
- list_for_each_entry(tmp_dev, adf_devmgr_get_head(), list) {
- if (adf_dev_started(tmp_dev) &&
- !list_empty(&tmp_dev->crypto_list)) {
- accel_dev = tmp_dev;
- break;
- }
- }
- }
-
- if (!accel_dev)
- return NULL;
-
- best = ~0;
- list_for_each_entry(tmp_inst, &accel_dev->crypto_list, list) {
- unsigned long ctr;
-
- ctr = atomic_read(&tmp_inst->refctr);
- if (best > ctr) {
- inst = tmp_inst;
- best = ctr;
- }
- }
- if (inst) {
- if (adf_dev_get(accel_dev)) {
- dev_err(&GET_DEV(accel_dev), "Could not increment dev refctr\n");
- return NULL;
- }
- atomic_inc(&inst->refctr);
- }
- return inst;
-}
-
-/**
- * qat_crypto_vf_dev_config()
- * create dev config required to create crypto inst.
- *
- * @accel_dev: Pointer to acceleration device.
- *
- * Function creates device configuration required to create
- * asym, sym or, crypto instances
- *
- * Return: 0 on success, error code otherwise.
- */
-int qat_crypto_vf_dev_config(struct adf_accel_dev *accel_dev)
-{
- u16 ring_to_svc_map = GET_HW_DATA(accel_dev)->ring_to_svc_map;
-
- if (ring_to_svc_map != ADF_GEN2_DEFAULT_RING_TO_SRV_MAP) {
- dev_err(&GET_DEV(accel_dev),
- "Unsupported ring/service mapping present on PF");
- return -EFAULT;
- }
-
- return GET_HW_DATA(accel_dev)->dev_config(accel_dev);
-}
-
-static int qat_crypto_create_instances(struct adf_accel_dev *accel_dev)
-{
- unsigned long num_inst, num_msg_sym, num_msg_asym;
- char key[ADF_CFG_MAX_KEY_LEN_IN_BYTES];
- char val[ADF_CFG_MAX_VAL_LEN_IN_BYTES];
- unsigned long sym_bank, asym_bank;
- struct qat_crypto_instance *inst;
- int msg_size;
- int ret;
- int i;
-
- INIT_LIST_HEAD(&accel_dev->crypto_list);
- ret = adf_cfg_get_param_value(accel_dev, SEC, ADF_NUM_CY, val);
- if (ret)
- return ret;
-
- ret = kstrtoul(val, 0, &num_inst);
- if (ret)
- return ret;
-
- for (i = 0; i < num_inst; i++) {
- inst = kzalloc_node(sizeof(*inst), GFP_KERNEL,
- dev_to_node(&GET_DEV(accel_dev)));
- if (!inst) {
- ret = -ENOMEM;
- goto err;
- }
-
- list_add_tail(&inst->list, &accel_dev->crypto_list);
- inst->id = i;
- atomic_set(&inst->refctr, 0);
- inst->accel_dev = accel_dev;
-
- snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_BANK_NUM, i);
- ret = adf_cfg_get_param_value(accel_dev, SEC, key, val);
- if (ret)
- goto err;
-
- ret = kstrtoul(val, 10, &sym_bank);
- if (ret)
- goto err;
-
- snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_BANK_NUM, i);
- ret = adf_cfg_get_param_value(accel_dev, SEC, key, val);
- if (ret)
- goto err;
-
- ret = kstrtoul(val, 10, &asym_bank);
- if (ret)
- goto err;
-
- snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_SIZE, i);
- ret = adf_cfg_get_param_value(accel_dev, SEC, key, val);
- if (ret)
- goto err;
-
- ret = kstrtoul(val, 10, &num_msg_sym);
- if (ret)
- goto err;
-
- num_msg_sym = num_msg_sym >> 1;
-
- snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_SIZE, i);
- ret = adf_cfg_get_param_value(accel_dev, SEC, key, val);
- if (ret)
- goto err;
-
- ret = kstrtoul(val, 10, &num_msg_asym);
- if (ret)
- goto err;
- num_msg_asym = num_msg_asym >> 1;
-
- msg_size = ICP_QAT_FW_REQ_DEFAULT_SZ;
- snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_TX, i);
- ret = adf_create_ring(accel_dev, SEC, sym_bank, num_msg_sym,
- msg_size, key, NULL, 0, &inst->sym_tx);
- if (ret)
- goto err;
-
- msg_size = msg_size >> 1;
- snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_TX, i);
- ret = adf_create_ring(accel_dev, SEC, asym_bank, num_msg_asym,
- msg_size, key, NULL, 0, &inst->pke_tx);
- if (ret)
- goto err;
-
- msg_size = ICP_QAT_FW_RESP_DEFAULT_SZ;
- snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_RX, i);
- ret = adf_create_ring(accel_dev, SEC, sym_bank, num_msg_sym,
- msg_size, key, qat_alg_callback, 0,
- &inst->sym_rx);
- if (ret)
- goto err;
-
- snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_RX, i);
- ret = adf_create_ring(accel_dev, SEC, asym_bank, num_msg_asym,
- msg_size, key, qat_alg_asym_callback, 0,
- &inst->pke_rx);
- if (ret)
- goto err;
-
- INIT_LIST_HEAD(&inst->backlog.list);
- spin_lock_init(&inst->backlog.lock);
- }
- return 0;
-err:
- qat_crypto_free_instances(accel_dev);
- return ret;
-}
-
-static int qat_crypto_init(struct adf_accel_dev *accel_dev)
-{
- if (qat_crypto_create_instances(accel_dev))
- return -EFAULT;
-
- return 0;
-}
-
-static int qat_crypto_shutdown(struct adf_accel_dev *accel_dev)
-{
- return qat_crypto_free_instances(accel_dev);
-}
-
-static int qat_crypto_event_handler(struct adf_accel_dev *accel_dev,
- enum adf_event event)
-{
- int ret;
-
- switch (event) {
- case ADF_EVENT_INIT:
- ret = qat_crypto_init(accel_dev);
- break;
- case ADF_EVENT_SHUTDOWN:
- ret = qat_crypto_shutdown(accel_dev);
- break;
- case ADF_EVENT_RESTARTING:
- case ADF_EVENT_RESTARTED:
- case ADF_EVENT_START:
- case ADF_EVENT_STOP:
- default:
- ret = 0;
- }
- return ret;
-}
-
-int qat_crypto_register(void)
-{
- memset(&qat_crypto, 0, sizeof(qat_crypto));
- qat_crypto.event_hld = qat_crypto_event_handler;
- qat_crypto.name = "qat_crypto";
- return adf_service_register(&qat_crypto);
-}
-
-int qat_crypto_unregister(void)
-{
- return adf_service_unregister(&qat_crypto);
-}