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/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2022, Intel Corporation. */
#ifndef _LIBIE_FWLOG_H_
#define _LIBIE_FWLOG_H_
#include <linux/net/intel/libie/adminq.h>
/* Only a single log level should be set and all log levels under the set value
* are enabled, e.g. if log level is set to LIBIE_FW_LOG_LEVEL_VERBOSE, then all
* other log levels are included (except LIBIE_FW_LOG_LEVEL_NONE)
*/
enum libie_fwlog_level {
LIBIE_FWLOG_LEVEL_NONE = 0,
LIBIE_FWLOG_LEVEL_ERROR = 1,
LIBIE_FWLOG_LEVEL_WARNING = 2,
LIBIE_FWLOG_LEVEL_NORMAL = 3,
LIBIE_FWLOG_LEVEL_VERBOSE = 4,
LIBIE_FWLOG_LEVEL_INVALID, /* all values >= this entry are invalid */
};
struct libie_fwlog_module_entry {
/* module ID for the corresponding firmware logging event */
u16 module_id;
/* verbosity level for the module_id */
u8 log_level;
};
struct libie_fwlog_cfg {
/* list of modules for configuring log level */
struct libie_fwlog_module_entry module_entries[LIBIE_AQC_FW_LOG_ID_MAX];
/* options used to configure firmware logging */
u16 options;
#define LIBIE_FWLOG_OPTION_ARQ_ENA BIT(0)
#define LIBIE_FWLOG_OPTION_UART_ENA BIT(1)
/* set before calling libie_fwlog_init() so the PF registers for
* firmware logging on initialization
*/
#define LIBIE_FWLOG_OPTION_REGISTER_ON_INIT BIT(2)
/* set in the libie_aq_fwlog_get() response if the PF is registered for
* FW logging events over ARQ
*/
#define LIBIE_FWLOG_OPTION_IS_REGISTERED BIT(3)
/* minimum number of log events sent per Admin Receive Queue event */
u16 log_resolution;
};
struct libie_fwlog_data {
u16 data_size;
u8 *data;
};
struct libie_fwlog_ring {
struct libie_fwlog_data *rings;
u16 index;
u16 size;
u16 head;
u16 tail;
};
#define LIBIE_FWLOG_RING_SIZE_INDEX_DFLT 3
#define LIBIE_FWLOG_RING_SIZE_DFLT 256
#define LIBIE_FWLOG_RING_SIZE_MAX 512
struct libie_fwlog {
struct libie_fwlog_cfg cfg;
bool supported; /* does hardware support FW logging? */
struct libie_fwlog_ring ring;
struct dentry *debugfs;
/* keep track of all the dentrys for FW log modules */
struct dentry **debugfs_modules;
struct_group_tagged(libie_fwlog_api, api,
struct pci_dev *pdev;
int (*send_cmd)(void *, struct libie_aq_desc *, void *, u16);
void *priv;
struct dentry *debugfs_root;
);
};
int libie_fwlog_init(struct libie_fwlog *fwlog, struct libie_fwlog_api *api);
void libie_fwlog_deinit(struct libie_fwlog *fwlog);
void libie_fwlog_reregister(struct libie_fwlog *fwlog);
void libie_get_fwlog_data(struct libie_fwlog *fwlog, u8 *buf, u16 len);
#endif /* _LIBIE_FWLOG_H_ */
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