101 lines
2.3 KiB
C
101 lines
2.3 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/* Copyright(c) 2023 Intel Corporation */
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#ifndef ADF_HEARTBEAT_H_
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#define ADF_HEARTBEAT_H_
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#include <linux/types.h>
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struct adf_accel_dev;
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struct dentry;
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#define ADF_CFG_HB_TIMER_MIN_MS 200
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#define ADF_CFG_HB_TIMER_DEFAULT_MS 500
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#define ADF_CFG_HB_COUNT_THRESHOLD 3
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#define ADF_CFG_HB_RESET_MS 5000
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enum adf_device_heartbeat_status {
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HB_DEV_UNRESPONSIVE = 0,
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HB_DEV_ALIVE,
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HB_DEV_UNSUPPORTED,
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};
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/* Heartbeat counter pair */
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struct hb_cnt_pair {
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__u16 resp_heartbeat_cnt;
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__u16 req_heartbeat_cnt;
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};
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struct adf_heartbeat {
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unsigned int hb_sent_counter;
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unsigned int hb_failed_counter;
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unsigned int hb_timer;
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u64 last_hb_check_time;
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u64 last_hb_reset_time;
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bool ctrs_cnt_checked;
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struct hb_dma_addr {
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dma_addr_t phy_addr;
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void *virt_addr;
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} dma;
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struct {
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struct dentry *base_dir;
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struct dentry *status;
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struct dentry *cfg;
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struct dentry *sent;
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struct dentry *failed;
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#ifdef CONFIG_CRYPTO_DEV_QAT_ERROR_INJECTION
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struct dentry *inject_error;
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#endif
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} dbgfs;
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};
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#ifdef CONFIG_DEBUG_FS
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int adf_heartbeat_init(struct adf_accel_dev *accel_dev);
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int adf_heartbeat_start(struct adf_accel_dev *accel_dev);
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void adf_heartbeat_shutdown(struct adf_accel_dev *accel_dev);
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int adf_heartbeat_ms_to_ticks(struct adf_accel_dev *accel_dev, unsigned int time_ms,
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uint32_t *value);
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int adf_heartbeat_save_cfg_param(struct adf_accel_dev *accel_dev,
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unsigned int timer_ms);
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void adf_heartbeat_status(struct adf_accel_dev *accel_dev,
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enum adf_device_heartbeat_status *hb_status);
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void adf_heartbeat_check_ctrs(struct adf_accel_dev *accel_dev);
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#ifdef CONFIG_CRYPTO_DEV_QAT_ERROR_INJECTION
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int adf_heartbeat_inject_error(struct adf_accel_dev *accel_dev);
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#else
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static inline int adf_heartbeat_inject_error(struct adf_accel_dev *accel_dev)
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{
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return -EPERM;
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}
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#endif
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#else
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static inline int adf_heartbeat_init(struct adf_accel_dev *accel_dev)
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{
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return 0;
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}
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static inline int adf_heartbeat_start(struct adf_accel_dev *accel_dev)
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{
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return 0;
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}
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static inline void adf_heartbeat_shutdown(struct adf_accel_dev *accel_dev)
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{
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}
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static inline int adf_heartbeat_save_cfg_param(struct adf_accel_dev *accel_dev,
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unsigned int timer_ms)
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{
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return 0;
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}
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static inline void adf_heartbeat_check_ctrs(struct adf_accel_dev *accel_dev)
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{
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}
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#endif
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#endif /* ADF_HEARTBEAT_H_ */
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