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1/**********************************************************************2 * Author: Cavium, Inc.3 *4 * Contact: support@cavium.com5 * Please include "LiquidIO" in the subject.6 *7 * Copyright (c) 2003-2016 Cavium, Inc.8 *9 * This file is free software; you can redistribute it and/or modify10 * it under the terms of the GNU General Public License, Version 2, as11 * published by the Free Software Foundation.12 *13 * This file is distributed in the hope that it will be useful, but14 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty15 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or16 * NONINFRINGEMENT. See the GNU General Public License for more details.17 ***********************************************************************/18#ifndef __MAILBOX_H__19#define __MAILBOX_H__20 21/* Macros for Mail Box Communication */22 23#define OCTEON_MBOX_DATA_MAX 3224 25#define OCTEON_VF_ACTIVE 0x126#define OCTEON_VF_FLR_REQUEST 0x227#define OCTEON_PF_CHANGED_VF_MACADDR 0x428#define OCTEON_GET_VF_STATS 0x829 30/*Macro for Read acknowldgement*/31#define OCTEON_PFVFACK 0xffffffffffffffffULL32#define OCTEON_PFVFSIG 0x1122334455667788ULL33#define OCTEON_PFVFERR 0xDEADDEADDEADDEADULL34 35#define LIO_MBOX_WRITE_WAIT_CNT 100036#define LIO_MBOX_WRITE_WAIT_TIME msecs_to_jiffies(1)37 38enum octeon_mbox_cmd_status {39 OCTEON_MBOX_STATUS_SUCCESS = 0,40 OCTEON_MBOX_STATUS_FAILED = 1,41 OCTEON_MBOX_STATUS_BUSY = 242};43 44enum octeon_mbox_message_type {45 OCTEON_MBOX_REQUEST = 0,46 OCTEON_MBOX_RESPONSE = 147};48 49union octeon_mbox_message {50 u64 u64;51 struct {52 u16 type : 1;53 u16 resp_needed : 1;54 u16 cmd : 6;55 u16 len : 8;56 u8 params[6];57 } s;58};59 60struct octeon_mbox_cmd;61 62typedef void (*octeon_mbox_callback_t)(struct octeon_device *,63 struct octeon_mbox_cmd *, void *);64 65struct octeon_mbox_cmd {66 union octeon_mbox_message msg;67 u64 data[OCTEON_MBOX_DATA_MAX];68 u32 q_no;69 u32 recv_len;70 u32 recv_status;71 octeon_mbox_callback_t fn;72 void *fn_arg;73};74 75enum octeon_mbox_state {76 OCTEON_MBOX_STATE_IDLE = 1,77 OCTEON_MBOX_STATE_REQUEST_RECEIVING = 2,78 OCTEON_MBOX_STATE_REQUEST_RECEIVED = 4,79 OCTEON_MBOX_STATE_RESPONSE_PENDING = 8,80 OCTEON_MBOX_STATE_RESPONSE_RECEIVING = 16,81 OCTEON_MBOX_STATE_RESPONSE_RECEIVED = 32,82 OCTEON_MBOX_STATE_ERROR = 6483};84 85struct octeon_mbox {86 /** A spinlock to protect access to this q_mbox. */87 spinlock_t lock;88 89 struct octeon_device *oct_dev;90 91 u32 q_no;92 93 enum octeon_mbox_state state;94 95 struct cavium_wk mbox_poll_wk;96 97 /** SLI_MAC_PF_MBOX_INT for PF, SLI_PKT_MBOX_INT for VF. */98 void *mbox_int_reg;99 100 /** SLI_PKT_PF_VF_MBOX_SIG(0) for PF, SLI_PKT_PF_VF_MBOX_SIG(1) for VF.101 */102 void *mbox_write_reg;103 104 /** SLI_PKT_PF_VF_MBOX_SIG(1) for PF, SLI_PKT_PF_VF_MBOX_SIG(0) for VF.105 */106 void *mbox_read_reg;107 108 struct octeon_mbox_cmd mbox_req;109 110 struct octeon_mbox_cmd mbox_resp;111 112};113 114struct oct_vf_stats_ctx {115 atomic_t status;116 struct oct_vf_stats *stats;117};118 119int octeon_mbox_read(struct octeon_mbox *mbox);120int octeon_mbox_write(struct octeon_device *oct,121 struct octeon_mbox_cmd *mbox_cmd);122int octeon_mbox_process_message(struct octeon_mbox *mbox);123int octeon_mbox_cancel(struct octeon_device *oct, int q_no);124 125#endif126