/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright 2010, 2011 Mark Nelson and Tseng-Hui (Frank) Lin, IBM Corporation
 */

#ifndef _ASM_POWERPC_IO_EVENT_IRQ_H
#define _ASM_POWERPC_IO_EVENT_IRQ_H

#include <linux/types.h>
#include <linux/notifier.h>

#define PSERIES_IOEI_RPC_MAX_LEN 216

#define PSERIES_IOEI_TYPE_ERR_DETECTED          0x01
#define PSERIES_IOEI_TYPE_ERR_RECOVERED         0x02
#define PSERIES_IOEI_TYPE_EVENT                 0x03
#define PSERIES_IOEI_TYPE_RPC_PASS_THRU         0x04

#define PSERIES_IOEI_SUBTYPE_NOT_APP            0x00
#define PSERIES_IOEI_SUBTYPE_REBALANCE_REQ      0x01
#define PSERIES_IOEI_SUBTYPE_NODE_ONLINE        0x03
#define PSERIES_IOEI_SUBTYPE_NODE_OFFLINE       0x04
#define PSERIES_IOEI_SUBTYPE_DUMP_SIZE_CHANGE   0x05
#define PSERIES_IOEI_SUBTYPE_TORRENT_IRV_UPDATE 0x06
#define PSERIES_IOEI_SUBTYPE_TORRENT_HFI_CFGED  0x07

#define PSERIES_IOEI_SCOPE_NOT_APP              0x00
#define PSERIES_IOEI_SCOPE_RIO_HUB              0x36
#define PSERIES_IOEI_SCOPE_RIO_BRIDGE           0x37
#define PSERIES_IOEI_SCOPE_PHB                  0x38
#define PSERIES_IOEI_SCOPE_EADS_GLOBAL          0x39
#define PSERIES_IOEI_SCOPE_EADS_SLOT            0x3A
#define PSERIES_IOEI_SCOPE_TORRENT_HUB          0x3B
#define PSERIES_IOEI_SCOPE_SERVICE_PROC         0x51

/* Platform Event Log Format, Version 6, data portition of IO event section */
struct pseries_io_event {
        uint8_t event_type;             /* 0x00 IO-Event Type           */
        uint8_t rpc_data_len;           /* 0x01 RPC data length         */
        uint8_t scope;                  /* 0x02 Error/Event Scope       */
        uint8_t event_subtype;          /* 0x03 I/O-Event Sub-Type      */
        uint32_t drc_index;             /* 0x04 DRC Index               */
        uint8_t rpc_data[PSERIES_IOEI_RPC_MAX_LEN];
                                        /* 0x08 RPC Data (0-216 bytes,  */
                                        /* padded to 4 bytes alignment) */
};

extern struct atomic_notifier_head pseries_ioei_notifier_list;

#endif /* _ASM_POWERPC_IO_EVENT_IRQ_H */