drivers/crypto/intel/qat/qat_common/adf_gen4_config.c

Source file repositories/reference/linux-study-clean/drivers/crypto/intel/qat/qat_common/adf_gen4_config.c

File Facts

System
Linux kernel
Corpus path
drivers/crypto/intel/qat/qat_common/adf_gen4_config.c
Extension
.c
Size
6679 bytes
Lines
277
Domain
Driver Families
Bucket
drivers/crypto
Inferred role
Driver Families: exported/initcall integration point
Status
integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/* Copyright(c) 2023 Intel Corporation */
#include "adf_accel_devices.h"
#include "adf_cfg.h"
#include "adf_cfg_services.h"
#include "adf_cfg_strings.h"
#include "adf_common_drv.h"
#include "adf_gen4_config.h"
#include "adf_heartbeat.h"
#include "adf_transport_access_macros.h"
#include "qat_compression.h"
#include "qat_crypto.h"

int adf_crypto_dev_config(struct adf_accel_dev *accel_dev)
{
	char key[ADF_CFG_MAX_KEY_LEN_IN_BYTES];
	int banks = GET_MAX_BANKS(accel_dev);
	int cpus = num_online_cpus();
	unsigned long bank, val;
	int instances;
	int ret;
	int i;

	if (adf_hw_dev_has_crypto(accel_dev))
		instances = min(cpus, banks / 2);
	else
		instances = 0;

	for (i = 0; i < instances; i++) {
		val = i;
		bank = i * 2;
		snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_BANK_NUM, i);
		ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
						  key, &bank, ADF_DEC);
		if (ret)
			goto err;

		bank += 1;
		snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_BANK_NUM, i);
		ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
						  key, &bank, ADF_DEC);
		if (ret)
			goto err;

		snprintf(key, sizeof(key), ADF_CY "%d" ADF_ETRMGR_CORE_AFFINITY,
			 i);
		ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
						  key, &val, ADF_DEC);
		if (ret)
			goto err;

		snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_SIZE, i);
		val = 128;
		ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
						  key, &val, ADF_DEC);
		if (ret)
			goto err;

		val = 512;
		snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_SIZE, i);
		ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
						  key, &val, ADF_DEC);
		if (ret)
			goto err;

		val = 0;
		snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_TX, i);
		ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
						  key, &val, ADF_DEC);
		if (ret)
			goto err;

		val = 0;
		snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_TX, i);
		ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
						  key, &val, ADF_DEC);
		if (ret)
			goto err;

		val = 1;
		snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_ASYM_RX, i);
		ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
						  key, &val, ADF_DEC);
		if (ret)
			goto err;

		val = 1;
		snprintf(key, sizeof(key), ADF_CY "%d" ADF_RING_SYM_RX, i);
		ret = adf_cfg_add_key_value_param(accel_dev, ADF_KERNEL_SEC,
						  key, &val, ADF_DEC);

Annotation

Implementation Notes