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/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2022 Intel Corporation.*/
#ifndef I3C_MCTP_H
#define I3C_MCTP_H
#define I3C_MCTP_PACKET_SIZE 68
#define I3C_MCTP_PAYLOAD_SIZE 64
#define I3C_MCTP_HDR_SIZE 4
/* PECI MCTP Intel VDM definitions */
#define MCTP_MSG_TYPE_VDM_PCI 0x7E
#define MCTP_VDM_PCI_INTEL_VENDOR_ID 0x8086
#define MCTP_VDM_PCI_INTEL_PECI 0x2
/* MCTP message header offsets */
#define MCTP_MSG_HDR_MSG_TYPE_OFFSET 0
#define MCTP_MSG_HDR_VENDOR_OFFSET 1
#define MCTP_MSG_HDR_OPCODE_OFFSET 4
struct i3c_mctp_client;
struct mctp_protocol_hdr {
u8 ver;
u8 dest;
u8 src;
u8 flags_seq_tag;
} __packed;
struct i3c_mctp_packet_data {
u8 protocol_hdr[I3C_MCTP_HDR_SIZE];
u8 payload[I3C_MCTP_PAYLOAD_SIZE];
};
struct i3c_mctp_packet {
struct i3c_mctp_packet_data data;
u32 size;
};
void *i3c_mctp_packet_alloc(gfp_t flags);
void i3c_mctp_packet_free(void *packet);
int i3c_mctp_get_eid(struct i3c_mctp_client *client, u8 domain_id, u8 *eid);
int i3c_mctp_send_packet(struct i3c_device *i3c, struct i3c_mctp_packet *tx_packet);
struct i3c_mctp_packet *i3c_mctp_receive_packet(struct i3c_mctp_client *client,
unsigned long timeout);
struct i3c_mctp_client *i3c_mctp_add_peci_client(struct i3c_device *i3c);
void i3c_mctp_remove_peci_client(struct i3c_mctp_client *client);
#endif /* I3C_MCTP_H */
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